-#include <ctype.h>
-#include <dirent.h>
+/*
+ * Mini dpkg implementation for busybox.
+ * This is not meant as a replacemnt for dpkg
+ *
+ * Copyright (C) 2001 by Glenn McGrath
+ *
+ * Started life as a busybox implementation of udpkg
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+/*
+ * Known difference between busybox dpkg and the official dpkg that i dont
+ * consider important, its worth keeping a note of differences anyway, just to
+ * make it easier to maintain.
+ * - The first value for the Confflile: field isnt placed on a new line.
+ * - The <package>.control file is extracted and kept in the info dir.
+ * - When installing a package the Status: field is placed at the end of the
+ * section, rather than just after the Package: field.
+ * - Packages with previously unknown status are inserted at the begining of
+ * the status file
+ *
+ * Bugs that need to be fixed
+ * - (unknown, please let me know when you find any)
+ *
+ */
+
#include <getopt.h>
-#include <stdio.h>
-#include <string.h>
#include <stdlib.h>
-#include <search.h>
-#include <errno.h>
-#include <fcntl.h>
+#include <string.h>
#include <unistd.h>
-#include <utime.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-
#include "busybox.h"
-#define DEPENDSMAX 64 /* maximum number of depends we can handle */
-
-/* Should we do full dependency checking? */
-//#define DODEPENDS 0
-
-/* Should we do debugging? */
-//#define DODEBUG 0
-
-#ifdef DODEBUG
-#define SYSTEM(x) do_system(x)
-#define DPRINTF(fmt,args...) fprintf(stderr, fmt, ##args)
-#else
-#define SYSTEM(x) system(x)
-#define DPRINTF(fmt,args...) /* nothing */
-#endif
-
-/* from dpkg-deb.c */
-
-static const char statusfile[] = "/var/lib/dpkg/status.udeb";
-static const char new_statusfile[] = "/var/lib/dpkg/status.udeb.new";
-static const char bak_statusfile[] = "/var/lib/dpkg/status.udeb.bak";
-
-static const char infodir[] = "/var/lib/dpkg/info/";
-static const char udpkg_quiet[] = "UDPKG_QUIET";
-
-//static const int status_want_unknown = 1;
-static const int state_want_install = 2;
-//static const int state_want_hold = 3;
-//static const int state_want_deinstall = 4;
-//static const int state_want_purge = 5;
-
-static const int state_flag_ok = 1;
-//static const int state_flag_reinstreq = 2;
-//static const int state_flag_hold = 3;
-//static const int state_flag_holdreinstreq = 4;
-
-//static const int state_statusnoninstalled = 1;
-static const int state_status_unpacked = 2;
-static const int state_status_halfconfigured = 3;
-static const int state_status_installed = 4;
-static const int state_status_halfinstalled = 5;
-//static const int state_statusconfigfiles = 6;
-//static const int state_statuspostinstfailed = 7;
-//static const int state_statusremovalfailed = 8;
-
-static const char *state_words_want[] = { "unknown", "install", "hold", "deinstall", "purge", 0 };
-static const char *state_words_flag[] = { "ok", "reinstreq", "hold", "hold-reinstreq", 0 };
-static const char *state_words_status[] = { "not-installed", "unpacked", "half-configured", "installed",
- "half-installed", "config-files", "post-inst-failed", "removal-failed", 0 };
-
-static const int color_white = 0;
-static const int color_grey = 1;
-static const int color_black = 2;
-
-/* data structures */
-typedef struct package_s {
- char *filename;
- char *package;
- unsigned char state_want;
- unsigned char state_flag;
- unsigned char state_status;
- char *depends;
- char *provides;
- char *description;
- char *priority;
- char *section;
- char *installed_size;
- char *maintainer;
- char *source;
- char *version;
- char *pre_depends;
- char *replaces;
- char *recommends;
- char *suggests;
- char *conflicts;
- char *conffiles;
- char *long_description;
- char *architecture;
- char *md5sum;
- int installer_menu_item;
- char color; /* for topo-sort */
- struct package_s *requiredfor[DEPENDSMAX];
- unsigned short requiredcount;
- struct package_s *next;
-} package_t;
-
-#ifdef DODEBUG
-static int do_system(const char *cmd)
-{
- DPRINTF("cmd is %s\n", cmd);
- return system(cmd);
-}
-#else
-#define do_system(cmd) system(cmd)
-#endif
+/* NOTE: If you vary HASH_PRIME sizes be aware,
+ * 1) Tweaking these will have a big effect on how much memory this program uses.
+ * 2) For computational efficiency these hash tables should be at least 20%
+ * larger than the maximum number of elements stored in it.
+ * 3) All _HASH_PRIME's must be a prime number or chaos is assured, if your looking
+ * for a prime, try http://www.utm.edu/research/primes/lists/small/10000.txt
+ * 4) If you go bigger than 15 bits you may get into trouble (untested) as its
+ * sometimes cast to an unsigned int, if you go to 16 bit you will overlap
+ * int's and chaos is assured, 16381 is the max prime for 14 bit field
+ */
-static int package_compare(const void *p1, const void *p2)
-{
- return strcmp(((package_t *)p1)->package,
- ((package_t *)p2)->package);
-}
+/* NAME_HASH_PRIME, Stores package names and versions,
+ * I estimate it should be at least 50% bigger than PACKAGE_HASH_PRIME,
+ * as there a lot of duplicate version numbers */
+#define NAME_HASH_PRIME 16381
+char *name_hashtable[NAME_HASH_PRIME + 1];
+
+/* PACKAGE_HASH_PRIME, Maximum number of unique packages,
+ * It must not be smaller than STATUS_HASH_PRIME,
+ * Currently only packages from status_hashtable are stored in here, but in
+ * future this may be used to store packages not only from a status file,
+ * but an available_hashtable, and even multiple packages files.
+ * Package can be stored more than once if they have different versions.
+ * e.g. The same package may have different versions in the status file
+ * and available file */
+#define PACKAGE_HASH_PRIME 10007
+typedef struct edge_s {
+ unsigned int operator:3;
+ unsigned int type:4;
+ unsigned int name:14;
+ unsigned int version:14;
+} edge_t;
+
+typedef struct common_node_s {
+ unsigned int name:14;
+ unsigned int version:14;
+ unsigned int num_of_edges:14;
+ edge_t **edge;
+} common_node_t;
+common_node_t *package_hashtable[PACKAGE_HASH_PRIME + 1];
+
+/* Currently it doesnt store packages that have state-status of not-installed
+ * So it only really has to be the size of the maximum number of packages
+ * likely to be installed at any one time, so there is a bit of leaway here */
+#define STATUS_HASH_PRIME 8191
+typedef struct status_node_s {
+ unsigned int package:14; /* has to fit PACKAGE_HASH_PRIME */
+ unsigned int status:14; /* has to fit STATUS_HASH_PRIME */
+} status_node_t;
+status_node_t *status_hashtable[STATUS_HASH_PRIME + 1];
+
+/* Even numbers are for 'extras', like ored dependecies or null */
+enum edge_type_e {
+ EDGE_NULL = 0,
+ EDGE_PRE_DEPENDS = 1,
+ EDGE_OR_PRE_DEPENDS = 2,
+ EDGE_DEPENDS = 3,
+ EDGE_OR_DEPENDS = 4,
+ EDGE_REPLACES = 5,
+ EDGE_PROVIDES = 7,
+ EDGE_CONFLICTS = 9,
+ EDGE_SUGGESTS = 11,
+ EDGE_RECOMMENDS = 13,
+ EDGE_ENHANCES = 15
+};
+enum operator_e {
+ VER_NULL = 0,
+ VER_EQUAL = 1,
+ VER_LESS = 2,
+ VER_LESS_EQUAL = 3,
+ VER_MORE = 4,
+ VER_MORE_EQUAL = 5,
+ VER_ANY = 6
+};
+
+enum dpkg_opt_e {
+ dpkg_opt_purge = 1,
+ dpkg_opt_remove = 2,
+ dpkg_opt_unpack = 4,
+ dpkg_opt_configure = 8,
+ dpkg_opt_install = 16,
+ dpkg_opt_package_name = 32,
+ dpkg_opt_filename = 64,
+ dpkg_opt_list_installed = 128,
+ dpkg_opt_force_ignore_depends = 256
+};
+
+typedef struct deb_file_s {
+ char *control_file;
+ char *filename;
+ unsigned int package:14;
+} deb_file_t;
-#ifdef DODEPENDS
-static char **depends_split(const char *dependsstr)
+void make_hash(const char *key, unsigned int *start, unsigned int *decrement, const int hash_prime)
{
- static char *dependsvec[DEPENDSMAX];
- char *p;
- int i = 0;
+ unsigned long int hash_num = key[0];
+ int len = strlen(key);
+ int i;
- dependsvec[0] = 0;
- if (dependsstr == 0) {
- goto end;
+ /* Maybe i should have uses a "proper" hashing algorithm here instead
+ * of making one up myself, seems to be working ok though. */
+ for(i = 1; i < len; i++) {
+ /* shifts the ascii based value and adds it to previous value
+ * shift amount is mod 24 because long int is 32 bit and data
+ * to be shifted is 8, dont want to shift data to where it has
+ * no effect*/
+ hash_num += ((key[i] + key[i-1]) << ((key[i] * i) % 24));
}
+ *start = (unsigned int) hash_num % hash_prime;
+ *decrement = (unsigned int) 1 + (hash_num % (hash_prime - 1));
+}
- p = xstrdup(dependsstr);
- while (*p != 0 && *p != '\n') {
- if (*p != ' ') {
- if (*p == ',') {
- *p = 0;
- dependsvec[++i] = 0;
- } else {
- if (dependsvec[i] == 0) {
- dependsvec[i] = p;
- }
- }
+/* this adds the key to the hash table */
+int search_name_hashtable(const char *key)
+{
+ unsigned int probe_address = 0;
+ unsigned int probe_decrement = 0;
+
+ make_hash(key, &probe_address, &probe_decrement, NAME_HASH_PRIME);
+ while(name_hashtable[probe_address] != NULL) {
+ if (strcmp(name_hashtable[probe_address], key) == 0) {
+ return(probe_address);
} else {
- *p = 0; /* eat the space... */
+ probe_address -= probe_decrement;
+ if ((int)probe_address < 0) {
+ probe_address += NAME_HASH_PRIME;
+ }
}
- p++;
}
- *p = 0;
+ name_hashtable[probe_address] = xstrdup(key);
-end:
- dependsvec[i+1] = 0;
- return dependsvec;
+ return(probe_address);
}
-/* Topological sort algorithm:
- * ordered is the output list, pkgs is the dependency graph, pkg is
- * the current node
- *
- * recursively add all the adjacent nodes to the ordered list, marking
- * each one as visited along the way
- *
- * yes, this algorithm looks a bit odd when all the params have the
- * same type :-)
+/* this DOESNT add the key to the hashtable
+ * TODO make it consistent with search_name_hashtable
*/
-static void depends_sort_visit(package_t **ordered, package_t *pkgs,
- package_t *pkg)
+unsigned int search_status_hashtable(const char *key)
{
- unsigned short i;
-
- /* mark node as processing */
- pkg->color = color_grey;
-
- /* visit each not-yet-visited node */
- for (i = 0; i < pkg->requiredcount; i++)
- if (pkg->requiredfor[i]->color == color_white)
- depends_sort_visit(ordered, pkgs, pkg->requiredfor[i]);
-
-#if 0
- /* add it to the list */
- newnode = (struct package_t *)xmalloc(sizeof(struct package_t));
- /* make a shallow copy */
- *newnode = *pkg;
- newnode->next = *ordered;
- *ordered = newnode;
-#endif
-
- pkg->next = *ordered;
- *ordered = pkg;
-
- /* mark node as done */
- pkg->color = color_black;
+ unsigned int probe_address = 0;
+ unsigned int probe_decrement = 0;
+
+ make_hash(key, &probe_address, &probe_decrement, STATUS_HASH_PRIME);
+ while(status_hashtable[probe_address] != NULL) {
+ if (strcmp(key, name_hashtable[package_hashtable[status_hashtable[probe_address]->package]->name]) == 0) {
+ break;
+ } else {
+ probe_address -= probe_decrement;
+ if ((int)probe_address < 0) {
+ probe_address += STATUS_HASH_PRIME;
+ }
+ }
+ }
+ return(probe_address);
}
-static package_t *depends_sort(package_t *pkgs)
+/* Need to rethink version comparison, maybe the official dpkg has something i can use ? */
+int version_compare_part(const char *version1, const char *version2)
{
- /* TODO: it needs to break cycles in the to-be-installed package
- * graph... */
- package_t *ordered = NULL;
- package_t *pkg;
-
- for (pkg = pkgs; pkg != 0; pkg = pkg->next) {
- pkg->color = color_white;
+ int upstream_len1 = 0;
+ int upstream_len2 = 0;
+ char *name1_char;
+ char *name2_char;
+ int len1 = 0;
+ int len2 = 0;
+ int tmp_int;
+ int ver_num1;
+ int ver_num2;
+
+ if (version1 == NULL) {
+ version1 = xstrdup("");
+ }
+ if (version2 != NULL) {
+ version2 = xstrdup("");
}
- for (pkg = pkgs; pkg != 0; pkg = pkg->next) {
- if (pkg->color == color_white) {
- depends_sort_visit(&ordered, pkgs, pkg);
+ upstream_len1 = strlen(version1);
+ upstream_len2 = strlen(version2);
+
+ while ((len1 < upstream_len1) || (len2 < upstream_len2)) {
+ /* Compare non-digit section */
+ tmp_int = strcspn(&version1[len1], "0123456789");
+ name1_char = xstrndup(&version1[len1], tmp_int);
+ len1 += tmp_int;
+ tmp_int = strcspn(&version2[len2], "0123456789");
+ name2_char = xstrndup(&version2[len2], tmp_int);
+ len2 += tmp_int;
+ tmp_int = strcmp(name1_char, name2_char);
+ free(name1_char);
+ free(name2_char);
+ if (tmp_int != 0) {
+ return(tmp_int);
+ }
+
+ /* Compare digits */
+ tmp_int = strspn(&version1[len1], "0123456789");
+ name1_char = xstrndup(&version1[len1], tmp_int);
+ len1 += tmp_int;
+ tmp_int = strspn(&version2[len2], "0123456789");
+ name2_char = xstrndup(&version2[len2], tmp_int);
+ len2 += tmp_int;
+ ver_num1 = atoi(name1_char);
+ ver_num2 = atoi(name2_char);
+ free(name1_char);
+ free(name2_char);
+ if (ver_num1 < ver_num2) {
+ return(-1);
}
+ else if (ver_num1 > ver_num2) {
+ return(1);
+ }
+ }
+ return(0);
+}
+
+/* if ver1 < ver2 return -1,
+ * if ver1 = ver2 return 0,
+ * if ver1 > ver2 return 1,
+ */
+int version_compare(const unsigned int ver1, const unsigned int ver2)
+{
+ char *ch_ver1 = name_hashtable[ver1];
+ char *ch_ver2 = name_hashtable[ver2];
+
+ char epoch1, epoch2;
+ char *deb_ver1, *deb_ver2;
+ char *ver1_ptr, *ver2_ptr;
+ char *upstream_ver1;
+ char *upstream_ver2;
+ int result;
+
+ /* Compare epoch */
+ if (ch_ver1[1] == ':') {
+ epoch1 = ch_ver1[0];
+ ver1_ptr = strchr(ch_ver1, ':') + 1;
+ } else {
+ epoch1 = '0';
+ ver1_ptr = ch_ver1;
+ }
+ if (ch_ver2[1] == ':') {
+ epoch2 = ch_ver2[0];
+ ver2_ptr = strchr(ch_ver2, ':') + 1;
+ } else {
+ epoch2 = '0';
+ ver2_ptr = ch_ver2;
+ }
+ if (epoch1 < epoch2) {
+ return(-1);
}
+ else if (epoch1 > epoch2) {
+ return(1);
+ }
+
+ /* Compare upstream version */
+ upstream_ver1 = xstrdup(ver1_ptr);
+ upstream_ver2 = xstrdup(ver2_ptr);
+
+ /* Chop off debian version, and store for later use */
+ deb_ver1 = strrchr(upstream_ver1, '-');
+ deb_ver2 = strrchr(upstream_ver2, '-');
+ if (deb_ver1) {
+ deb_ver1[0] = '\0';
+ deb_ver1++;
+ }
+ if (deb_ver2) {
+ deb_ver2[0] = '\0';
+ deb_ver2++;
+ }
+ result = version_compare_part(upstream_ver1, upstream_ver2);
+
+ free(upstream_ver1);
+ free(upstream_ver2);
- /* Leaks the old list... return the new one... */
- return ordered;
+ if (result != 0) {
+ return(result);
+ }
+
+ /* Compare debian versions */
+ return(version_compare_part(deb_ver1, deb_ver2));
+}
+
+int test_version(const unsigned int version1, const unsigned int version2, const unsigned int operator)
+{
+ const int version_result = version_compare(version1, version2);
+ switch(operator) {
+ case (VER_ANY):
+ return(TRUE);
+ case (VER_EQUAL):
+ if (version_result == 0) {
+ return(TRUE);
+ }
+ break;
+ case (VER_LESS):
+ if (version_result < 0) {
+ return(TRUE);
+ }
+ break;
+ case (VER_LESS_EQUAL):
+ if (version_result <= 0) {
+ return(TRUE);
+ }
+ break;
+ case (VER_MORE):
+ if (version_result > 0) {
+ return(TRUE);
+ }
+ break;
+ case (VER_MORE_EQUAL):
+ if (version_result >= 0) {
+ return(TRUE);
+ }
+ break;
+ }
+ return(FALSE);
}
-/* resolve package dependencies --
- * for each package in the list of packages to be installed, we parse its
- * dependency info to determine if the dependent packages are either
- * already installed, or are scheduled to be installed. If both tests fail
- * than bail.
- *
- * The algorithm here is O(n^2*m) where n = number of packages to be
- * installed and m is the # of dependencies per package. Not a terribly
- * efficient algorithm, but given that at any one time you are unlikely
- * to install a very large number of packages it doesn't really matter
- */
-static package_t *depends_resolve(package_t *pkgs, void *status)
+int search_package_hashtable(const unsigned int name, const unsigned int version, const unsigned int operator)
{
- package_t *pkg, *chk;
- package_t dependpkg;
- char **dependsvec;
- int i;
- void *found;
-
- for (pkg = pkgs; pkg != 0; pkg = pkg->next) {
- dependsvec = depends_split(pkg->depends);
- i = 0;
- while (dependsvec[i] != 0) {
- /* Check for dependencies; first look for installed packages */
- dependpkg.package = dependsvec[i];
- if (((found = tfind(&dependpkg, &status, package_compare)) == 0) ||
- ((chk = *(package_t **)found) && (chk->state_flag & state_flag_ok) &&
- (chk->state_status & state_status_installed))) {
-
- /* if it fails, we look through the list of packages we are going to
- * install */
- for (chk = pkgs; chk != 0; chk = chk->next) {
- if (strcmp(chk->package, dependsvec[i]) == 0 || (chk->provides &&
- strncmp(chk->provides, dependsvec[i], strlen(dependsvec[i])) == 0)) {
- if (chk->requiredcount >= DEPENDSMAX) {
- error_msg("Too many dependencies for %s", chk->package);
- return 0;
- }
- if (chk != pkg) {
- chk->requiredfor[chk->requiredcount++] = pkg;
- }
- break;
- }
- }
- if (chk == 0) {
- error_msg("%s depends on %s, but it is not going to be installed", pkg->package, dependsvec[i]);
- return 0;
- }
+ unsigned int probe_address = 0;
+ unsigned int probe_decrement = 0;
+
+ make_hash(name_hashtable[name], &probe_address, &probe_decrement, PACKAGE_HASH_PRIME);
+ while(package_hashtable[probe_address] != NULL) {
+ if (package_hashtable[probe_address]->name == name) {
+ if (operator == VER_ANY) {
+ return(probe_address);
+ }
+ if (test_version(package_hashtable[probe_address]->version, version, operator)) {
+ return(probe_address);
}
- i++;
+ }
+ probe_address -= probe_decrement;
+ if ((int)probe_address < 0) {
+ probe_address += PACKAGE_HASH_PRIME;
}
}
-
- return depends_sort(pkgs);
+ return(probe_address);
}
-#endif
-
-/* Status file handling routines
- *
- * This is a fairly minimalistic implementation. there are two main functions
- * that are supported:
- *
- * 1) reading the entire status file:
- * the status file is read into memory as a binary-tree, with just the
- * package and status info preserved
- *
- * 2) merging the status file
- * control info from (new) packages is merged into the status file,
- * replacing any pre-existing entries. when a merge happens, status info
- * read using the status_read function is written back to the status file
+
+/*
+ * Create one new node and one new edge for every dependency.
*/
-static unsigned char status_parse(const char *line, const char **status_words)
+void add_split_dependencies(common_node_t *parent_node, const char *whole_line, unsigned int edge_type)
{
- unsigned char status_num;
- int i = 0;
+ char *line = xstrdup(whole_line);
+ char *line2;
+ char *line_ptr1 = NULL;
+ char *line_ptr2 = NULL;
+ char *field;
+ char *field2;
+ char *version;
+ edge_t *edge;
+ int offset_ch;
+ int type;
+
+ field = strtok_r(line, ",", &line_ptr1);
+ do {
+ line2 = xstrdup(field);
+ field2 = strtok_r(line2, "|", &line_ptr2);
+ if ((edge_type == EDGE_DEPENDS) && (strcmp(field, field2) != 0)) {
+ type = EDGE_OR_DEPENDS;
+ }
+ else if ((edge_type == EDGE_PRE_DEPENDS) && (strcmp(field, field2) != 0)) {
+ type = EDGE_OR_PRE_DEPENDS;
+ } else {
+ type = edge_type;
+ }
+
+ do {
+ edge = (edge_t *) xmalloc(sizeof(edge_t));
+ edge->type = type;
+
+ /* Skip any extra leading spaces */
+ field2 += strspn(field2, " ");
+
+ /* Get dependency version info */
+ version = strchr(field2, '(');
+ if (version == NULL) {
+ edge->operator = VER_ANY;
+ /* Get the versions hash number, adding it if the number isnt already in there */
+ edge->version = search_name_hashtable("ANY");
+ } else {
+ /* Skip leading ' ' or '(' */
+ version += strspn(field2, " ");
+ version += strspn(version, "(");
+ /* Calculate length of any operator charactors */
+ offset_ch = strspn(version, "<=>");
+ /* Determine operator */
+ if (offset_ch > 0) {
+ if (strncmp(version, "=", offset_ch) == 0) {
+ edge->operator = VER_EQUAL;
+ }
+ else if (strncmp(version, "<<", offset_ch) == 0) {
+ edge->operator = VER_LESS;
+ }
+ else if (strncmp(version, "<=", offset_ch) == 0) {
+ edge->operator = VER_LESS_EQUAL;
+ }
+ else if (strncmp(version, ">>", offset_ch) == 0) {
+ edge->operator = VER_MORE;
+ }
+ else if (strncmp(version, ">=", offset_ch) == 0) {
+ edge->operator = VER_MORE_EQUAL;
+ } else {
+ error_msg_and_die("Illegal operator\n");
+ }
+ }
+ /* skip to start of version numbers */
+ version += offset_ch;
+ version += strspn(version, " ");
+
+ /* Truncate version at trailing ' ' or ')' */
+ version[strcspn(version, " )")] = '\0';
+ /* Get the versions hash number, adding it if the number isnt already in there */
+ edge->version = search_name_hashtable(version);
+ }
+
+ /* Get the dependency name */
+ field2[strcspn(field2, " (")] = '\0';
+ edge->name = search_name_hashtable(field2);
+
+ /* link the new edge to the current node */
+ parent_node->num_of_edges++;
+ parent_node->edge = xrealloc(parent_node->edge, sizeof(edge_t) * (parent_node->num_of_edges + 1));
+ parent_node->edge[parent_node->num_of_edges - 1] = edge;
+ } while ((field2 = strtok_r(NULL, "|", &line_ptr2)) != NULL);
+ free(line2);
+ } while ((field = strtok_r(NULL, ",", &line_ptr1)) != NULL);
+ free(line);
- while (status_words[i] != 0) {
- if (strncmp(line, status_words[i], strlen(status_words[i])) == 0) {
- status_num = (char)i;
- return(status_num);
+ return;
+}
+
+void free_package(common_node_t *node)
+{
+ int i;
+ if (node != NULL) {
+ for (i = 0; i < node->num_of_edges; i++) {
+ if (node->edge[i] != NULL) {
+ free(node->edge[i]);
+ }
+ }
+ if (node->edge != NULL) {
+ free(node->edge);
+ }
+ if (node != NULL) {
+ free(node);
}
- i++;
}
- /* parse error */
- error_msg("Invalid status word");
- return(0);
}
-/*
- * Read the buffered control file and parse it,
- * filling parsed fields into the package structure
- */
-static int fill_package_struct(package_t *package, const char *package_buffer)
+unsigned int fill_package_struct(char *control_buffer)
{
- char *field = NULL;
+ common_node_t *new_node = (common_node_t *) xcalloc(1, sizeof(common_node_t));
+
+ char *field;
+ char *field_name;
+ char *field_value;
int field_start = 0;
- int field_length = 0;
+ int field_length;
+ int seperator_offset;
+ int num = -1;
+ int buffer_length = strlen(control_buffer);
+
+ new_node->version = search_name_hashtable("unknown");
+ while (field_start < buffer_length) {
+ field = read_package_field(&control_buffer[field_start]);
- while ((field = read_package_field(&package_buffer[field_start])) != NULL) {
+ /* Setup start point for next field */
field_length = strlen(field);
field_start += (field_length + 1);
- if (strlen(field) == 0) {
- printf("empty line: *this shouldnt happen i dont think*\n");
- break;
- }
+ seperator_offset = strcspn(field, ":");
+ field_name = xstrndup(field, seperator_offset);
+ field_value = field + seperator_offset + 1;
+ field_value += strspn(field_value, " \n\t");
- /* these are common to both installed and uninstalled packages */
- if (strstr(field, "Package: ") == field) {
- package->package = strdup(field + 9);
- }
- else if (strstr(field, "Depends: ") == field) {
- package->depends = strdup(field + 9);
- }
- else if (strstr(field, "Provides: ") == field) {
- package->provides = strdup(field + 10);
+ if (strcmp(field_name, "Package") == 0) {
+ new_node->name = search_name_hashtable(field_value);
}
- /* This is specific to the Debian Installer. Ifdef? */
- else if (strstr(field, "installer-menu-item: ") == field) {
- package->installer_menu_item = atoi(field + 21);
+ else if (strcmp(field_name, "Version") == 0) {
+ new_node->version = search_name_hashtable(field_value);
}
- else if (strstr(field, "Description: ") == field) {
- package->description = strdup(field + 13);
+ else if (strcmp(field_name, "Pre-Depends") == 0) {
+ add_split_dependencies(new_node, field_value, EDGE_PRE_DEPENDS);
}
- else if (strstr(field, "Priority: ") == field) {
- package->priority = strdup(field + 10);
+ else if (strcmp(field_name, "Depends") == 0) {
+ add_split_dependencies(new_node, field_value, EDGE_DEPENDS);
}
- else if (strstr(field, "Section: ") == field) {
- package->section = strdup(field + 9);
+ else if (strcmp(field_name, "Replaces") == 0) {
+ add_split_dependencies(new_node, field_value, EDGE_REPLACES);
}
- else if (strstr(field, "Installed-Size: ") == field) {
- package->installed_size = strdup(field + 16);
+ else if (strcmp(field_name, "Provides") == 0) {
+ add_split_dependencies(new_node, field_value, EDGE_PROVIDES);
}
- else if (strstr(field, "Maintainer: ") == field) {
- package->maintainer = strdup(field + 12);
+ else if (strcmp(field_name, "Conflicts") == 0) {
+ add_split_dependencies(new_node, field_value, EDGE_CONFLICTS);
}
- else if (strstr(field, "Version: ") == field) {
- package->version = strdup(field + 9);
- }
- else if (strstr(field, "Suggests: ") == field) {
- package->suggests = strdup(field + 10);
- }
- else if (strstr(field, "Recommends: ") == field) {
- package->recommends = strdup(field + 12);
- }
-/* else if (strstr(field, "Conffiles: ") == field) {
- package->conffiles = read_block(file);
- package->conffiles = xcalloc(1, 1);
- while ((field = strtok(NULL, "\n")) != NULL) {
- package->long_description = xrealloc(package->conffiles,
- strlen(package->conffiles) + strlen(field) + 1);
- strcat(package->conffiles, field);
- }
- }
-*/
- /* These are only in available file */
- else if (strstr(field, "Architecture: ") == field) {
- package->architecture = strdup(field + 14);
+ else if (strcmp(field_name, "Suggests") == 0) {
+ add_split_dependencies(new_node, field_value, EDGE_SUGGESTS);
}
- else if (strstr(field, "Filename: ") == field) {
- package->filename = strdup(field + 10);
+ else if (strcmp(field_name, "Recommends") == 0) {
+ add_split_dependencies(new_node, field_value, EDGE_RECOMMENDS);
}
- else if (strstr(field, "MD5sum ") == field) {
- package->md5sum = strdup(field + 7);
+ else if (strcmp(field_name, "Enhances") == 0) {
+ add_split_dependencies(new_node, field_value, EDGE_ENHANCES);
}
-
- /* This is only needed for status file */
- if (strstr(field, "Status: ") == field) {
- char *word_pointer;
-
- word_pointer = strchr(field, ' ') + 1;
- package->state_want = status_parse(word_pointer, state_words_want);
- word_pointer = strchr(word_pointer, ' ') + 1;
- package->state_flag = status_parse(word_pointer, state_words_flag);
- word_pointer = strchr(word_pointer, ' ') + 1;
- package->state_status = status_parse(word_pointer, state_words_status);
- } else {
- package->state_want = status_parse("purge", state_words_want);
- package->state_flag = status_parse("ok", state_words_flag);
- package->state_status = status_parse("not-installed", state_words_status);
- }
-
+ free(field_name);
free(field);
}
- return EXIT_SUCCESS;
+ if (new_node->version == search_name_hashtable("unknown")) {
+ free_package(new_node);
+ return(-1);
+ }
+ num = search_package_hashtable(new_node->name, new_node->version, VER_EQUAL);
+ if (package_hashtable[num] == NULL) {
+ package_hashtable[num] = new_node;
+ } else {
+ free_package(new_node);
+ }
+ return(num);
}
-extern void write_package(FILE *out_file, package_t *pkg)
+/* if num = 1, it returns the want status, 2 returns flag, 3 returns status */
+unsigned int get_status(const unsigned int status_node, const int num)
{
- if (pkg->package) {
- fprintf(out_file, "Package: %s\n", pkg->package);
- }
- if ((pkg->state_want != 0) || (pkg->state_flag != 0)|| (pkg->state_status != 0)) {
- fprintf(out_file, "Status: %s %s %s\n",
- state_words_want[pkg->state_want - 1],
- state_words_flag[pkg->state_flag - 1],
- state_words_status[pkg->state_status - 1]);
- }
- if (pkg->depends) {
- fprintf(out_file, "Depends: %s\n", pkg->depends);
- }
- if (pkg->provides) {
- fprintf(out_file, "Provides: %s\n", pkg->provides);
- }
- if (pkg->priority) {
- fprintf(out_file, "Priority: %s\n", pkg->priority);
- }
- if (pkg->section) {
- fprintf(out_file, "Section: %s\n", pkg->section);
- }
- if (pkg->section) {
- fprintf(out_file, "Installed-Size: %s\n", pkg->installed_size);
- }
- if (pkg->maintainer) {
- fprintf(out_file, "Maintainer: %s\n", pkg->maintainer);
- }
- if (pkg->source) {
- fprintf(out_file, "Source: %s\n", pkg->source);
- }
- if (pkg->version) {
- fprintf(out_file, "Version: %s\n", pkg->version);
- }
- if (pkg->pre_depends) {
- fprintf(out_file, "Pre-depends: %s\n", pkg->pre_depends);
- }
- if (pkg->replaces) {
- fprintf(out_file, "Replaces: %s\n", pkg->replaces);
- }
- if (pkg->recommends) {
- fprintf(out_file, "Recommends: %s\n", pkg->recommends);
- }
- if (pkg->suggests) {
- fprintf(out_file, "Suggests: %s\n", pkg->suggests);
- }
- if (pkg->conflicts) {
- fprintf(out_file, "Conflicts: %s\n", pkg->conflicts);
- }
- if (pkg->conffiles) {
- fprintf(out_file, "Conf-files: %s\n", pkg->conffiles);
- }
- if (pkg->architecture) {
- fprintf(out_file, "Architecture: %s\n", pkg->architecture);
- }
- if (pkg->filename) {
- fprintf(out_file, "Filename: %s\n", pkg->filename);
- }
- if (pkg->md5sum) {
- fprintf(out_file, "MD5sum: %s\n", pkg->md5sum);
+ char *status_string = name_hashtable[status_hashtable[status_node]->status];
+ char *state_sub_string;
+ unsigned int state_sub_num;
+ int len;
+ int i;
+
+ /* set tmp_string to point to the start of the word number */
+ for (i = 1; i < num; i++) {
+ /* skip past a word */
+ status_string += strcspn(status_string, " ");
+ /* skip past the seperating spaces */
+ status_string += strspn(status_string, " ");
}
- if (pkg->installer_menu_item) {
- fprintf(out_file, "installer-main-menu %d\n", pkg->installer_menu_item);
+ len = strcspn(status_string, " \n\0");
+ state_sub_string = xstrndup(status_string, len);
+ state_sub_num = search_name_hashtable(state_sub_string);
+ free(state_sub_string);
+ return(state_sub_num);
+}
+
+void set_status(const unsigned int status_node_num, const char *new_value, const int position)
+{
+ const unsigned int new_value_len = strlen(new_value);
+ const unsigned int new_value_num = search_name_hashtable(new_value);
+ unsigned int want = get_status(status_node_num, 1);
+ unsigned int flag = get_status(status_node_num, 2);
+ unsigned int status = get_status(status_node_num, 3);
+ int want_len = strlen(name_hashtable[want]);
+ int flag_len = strlen(name_hashtable[flag]);
+ int status_len = strlen(name_hashtable[status]);
+ char *new_status;
+
+ switch (position) {
+ case (1):
+ want = new_value_num;
+ want_len = new_value_len;
+ break;
+ case (2):
+ flag = new_value_num;
+ flag_len = new_value_len;
+ break;
+ case (3):
+ status = new_value_num;
+ status_len = new_value_len;
+ break;
+ default:
+ error_msg_and_die("DEBUG ONLY: this shouldnt happen");
}
- if (pkg->description) {
- fprintf(out_file, "Description: %s\n", pkg->description);
+
+ new_status = (char *) xmalloc(want_len + flag_len + status_len + 3);
+ sprintf(new_status, "%s %s %s", name_hashtable[want], name_hashtable[flag], name_hashtable[status]);
+ status_hashtable[status_node_num]->status = search_name_hashtable(new_status);
+ return;
+}
+
+void index_status_file(const char *filename)
+{
+ FILE *status_file;
+ char *control_buffer;
+ char *status_line;
+ status_node_t *status_node = NULL;
+ unsigned int status_num;
+
+ status_file = fopen(filename, "r");
+ while ((control_buffer = fgets_str(status_file, "\n\n")) != NULL) {
+ const unsigned int package_num = fill_package_struct(control_buffer);
+ if (package_num != -1) {
+ status_node = xmalloc(sizeof(status_node_t));
+ /* fill_package_struct doesnt handle the status field */
+ status_line = strstr(control_buffer, "Status:");
+ if (status_line != NULL) {
+ status_line += 7;
+ status_line += strspn(status_line, " \n\t");
+ status_line = xstrndup(status_line, strcspn(status_line, "\n\0"));
+ status_node->status = search_name_hashtable(status_line);
+ free(status_line);
+ }
+ status_node->package = package_num;
+ status_num = search_status_hashtable(name_hashtable[package_hashtable[status_node->package]->name]);
+ status_hashtable[status_num] = status_node;
+ }
+ free(control_buffer);
}
- fputc('\n', out_file);
- pkg = pkg->next;
+ fclose(status_file);
+ return;
}
-static void *status_read(void)
+
+char *get_depends_field(common_node_t *package, const int depends_type)
{
- FILE *f;
- void *status = 0;
- package_t *m = 0, *p = 0, *t = 0;
- char *package_control_buffer = NULL;
+ char *depends = NULL;
+ char *old_sep = (char *)xcalloc(1, 3);
+ char *new_sep = (char *)xcalloc(1, 3);
+ int line_size = 0;
+ int depends_size;
- if (getenv(udpkg_quiet) == NULL) {
- printf("(Reading database...)\n");
- }
+ int i;
- if ((f = wfopen(statusfile, "r")) == NULL) {
- return(NULL);
- }
+ for (i = 0; i < package->num_of_edges; i++) {
+ if ((package->edge[i]->type == EDGE_OR_PRE_DEPENDS) ||
+ (package->edge[i]->type == EDGE_OR_DEPENDS)) {
+ }
- while ( (package_control_buffer = fgets_str(f, "\n\n")) != NULL) {
- m = (package_t *)xcalloc(1, sizeof(package_t));
- fill_package_struct(m, package_control_buffer);
- if (m->package) {
- /*
- * If there is an item in the tree by this name,
- * it must be a virtual package; insert real
- * package in preference.
- */
- tdelete(m, &status, package_compare);
- tsearch(m, &status, package_compare);
- if (m->provides) {
- /*
- * A "Provides" triggers the insertion
- * of a pseudo package into the status
- * binary-tree.
- */
- p = (package_t *)xcalloc(1, sizeof(package_t));
- p->package = xstrdup(m->provides);
- t = *(package_t **)tsearch(p, &status, package_compare);
- if (t != p) {
- free(p->package);
- free(p);
+ if ((package->edge[i]->type == depends_type) ||
+ (package->edge[i]->type == depends_type + 1)) {
+ /* Check if its the first time through */
+
+ depends_size = 8 + strlen(name_hashtable[package->edge[i]->name])
+ + strlen(name_hashtable[package->edge[i]->version]);
+ line_size += depends_size;
+ depends = (char *) xrealloc(depends, line_size + 1);
+
+ /* Check to see if this dependency is the type we are looking for
+ * +1 to check for 'extra' types, e.g. ored dependecies */
+ strcpy(old_sep, new_sep);
+ if (package->edge[i]->type == depends_type) {
+ strcpy(new_sep, ", ");
+ }
+ else if (package->edge[i]->type == depends_type + 1) {
+ strcpy(new_sep, "| ");
+ }
+
+ if (depends_size == line_size) {
+ strcpy(depends, "");
+ } else {
+ if ((strcmp(old_sep, "| ") == 0) && (strcmp(new_sep, "| ") == 0)) {
+ strcat(depends, " | ");
} else {
- /*
- * Pseudo package status is the
- * same as the status of the
- * package providing it
- * FIXME: (not quite right, if 2
- * packages of different statuses
- * provide it).
- */
- t->state_want = m->state_want;
- t->state_flag = m->state_flag;
- t->state_status = m->state_status;
+ strcat(depends, ", ");
}
}
- }
- else {
- free(m);
+
+ strcat(depends, name_hashtable[package->edge[i]->name]);
+ if (strcmp(name_hashtable[package->edge[i]->version], "NULL") != 0) {
+ if (package->edge[i]->operator == VER_EQUAL) {
+ strcat(depends, " (= ");
+ }
+ else if (package->edge[i]->operator == VER_LESS) {
+ strcat(depends, " (<< ");
+ }
+ else if (package->edge[i]->operator == VER_LESS_EQUAL) {
+ strcat(depends, " (<= ");
+ }
+ else if (package->edge[i]->operator == VER_MORE) {
+ strcat(depends, " (>> ");
+ }
+ else if (package->edge[i]->operator == VER_MORE_EQUAL) {
+ strcat(depends, " (>= ");
+ } else {
+ strcat(depends, " (");
+ }
+ strcat(depends, name_hashtable[package->edge[i]->version]);
+ strcat(depends, ")");
+ }
}
}
- fclose(f);
- return status;
+ return(depends);
}
-static int status_merge(void *status, package_t *pkgs)
+/* This could do with a cleanup */
+void write_status_file(deb_file_t **deb_file)
{
- FILE *fin, *fout;
- char *line = NULL;
- package_t *pkg = 0, *statpkg = 0;
- package_t locpkg;
+ FILE *old_status_file = xfopen("/var/lib/dpkg/status", "r");
+ FILE *new_status_file = xfopen("/var/lib/dpkg/status.udeb", "w");
+ char *package_name;
+ char *status_from_file;
+ char *control_buffer = NULL;
+ char *tmp_string;
+ char *field;
+ int status_num;
+ int field_length;
+ int field_start = 0;
+ int buffer_length;
+ int write_flag;
+ int i = 0;
- if ((fout = wfopen(new_statusfile, "w")) == NULL) {
- return 0;
- }
- if (getenv(udpkg_quiet) == NULL) {
- printf("(Updating database...)\n");
- }
+ /* Update previously known packages */
+ while ((control_buffer = fgets_str(old_status_file, "\n\n")) != NULL) {
+ tmp_string = strstr(control_buffer, "Package:") + 8;
+ tmp_string += strspn(tmp_string, " \n\t");
+ package_name = xstrndup(tmp_string, strcspn(tmp_string, "\n\0"));
+ write_flag = FALSE;
+
+ tmp_string = strstr(control_buffer, "Status:");
+ if (tmp_string != NULL) {
+ /* Seperate the status value from the control buffer */
+ tmp_string += 7;
+ tmp_string += strspn(tmp_string, " \n\t");
+ status_from_file = xstrndup(tmp_string, strcspn(tmp_string, "\n"));
+ } else {
+ status_from_file = NULL;
+ }
- /*
- * Dont use wfopen here, handle errors ourself
- */
- if ((fin = fopen(statusfile, "r")) != NULL) {
- while (((line = get_line_from_file(fin)) != NULL) && !feof(fin)) {
- chomp(line); /* trim newline */
- /* If we see a package header, find out if it's a package
- * that we have processed. if so, we skip that block for
- * now (write it at the end).
- *
- * we also look at packages in the status cache and update
- * their status fields
- */
- if (strstr(line, "Package: ") == line) {
- for (pkg = pkgs; pkg != 0 && strcmp(line + 9,
- pkg->package) != 0; pkg = pkg->next) ;
-
- locpkg.package = line + 9;
- statpkg = tfind(&locpkg, &status, package_compare);
-
- /* note: statpkg should be non-zero, unless the status
- * file was changed while we are processing (no locking
- * is currently done...
- */
- if (statpkg != 0) {
- statpkg = *(package_t **)statpkg;
+ /* Find this package in the status hashtable */
+ status_num = search_status_hashtable(package_name);
+ if (status_hashtable[status_num] != NULL) {
+ const char *status_from_hashtable = name_hashtable[status_hashtable[status_num]->status];
+ if (strcmp(status_from_file, status_from_hashtable) != 0) {
+ /* New status isnt exactly the same as old status */
+ const int state_status = get_status(status_num, 3);
+ if ((strcmp("installed", name_hashtable[state_status]) == 0) ||
+ (strcmp("unpacked", name_hashtable[state_status]) == 0)) {
+ /* We need to add the control file from the package */
+ i = 0;
+ while(deb_file[i] != NULL) {
+ if (strcmp(package_name, name_hashtable[package_hashtable[deb_file[i]->package]->name]) == 0) {
+ char *last_char;
+ /* Write a status file entry with a modified status */
+ /* remove trailing \n's */
+ while(1) {
+ last_char = last_char_is(deb_file[i]->control_file, '\n');
+ if (last_char) {
+ *last_char = '\0';
+ } else {
+ break;
+ }
+ }
+ fputs(deb_file[i]->control_file, new_status_file);
+ set_status(status_num, "ok", 2);
+ fprintf(new_status_file, "\nStatus: %s\n\n", name_hashtable[status_hashtable[status_num]->status]);
+ write_flag = TRUE;
+ break;
+ }
+ i++;
+ }
+ /* This is temperary, debugging only */
+ if (deb_file[i] == NULL) {
+ error_msg_and_die("ALERT: Couldnt find a control file, your status file may be broken, status may be incorrect for %s", package_name);
+ }
+ }
+ else if (strcmp("not-installed", name_hashtable[state_status]) == 0) {
+ /* Only write the Package, Status, Priority and Section lines */
+ fprintf(new_status_file, "Package: %s\n", package_name);
+ fprintf(new_status_file, "Status: %s\n", status_from_hashtable);
+ buffer_length = strlen(control_buffer);
+ while (field_start < buffer_length) {
+ field = read_package_field(&control_buffer[field_start]);
+ field_length = strlen(field);
+ field_start += (field_length + 1);
+ if (strncmp(field, "Priority:", 9) == 0) {
+ fprintf(new_status_file, "Priority:%s\n", field + 9);
+ }
+ if (strncmp(field, "Section:", 8) == 0) {
+ fprintf(new_status_file, "Section:%s\n", field + 8);
+ }
+ }
+ write_flag = TRUE;
+ fputs("\n", new_status_file);
+ }
+ else if (strcmp("config-files", name_hashtable[state_status]) == 0) {
+ /* only change the status line */
+ buffer_length = strlen(control_buffer);
+ while (field_start < buffer_length) {
+ field = read_package_field(&control_buffer[field_start]);
+ /* Setup start point for next field */
+ field_length = strlen(field);
+ field_start += (field_length + 1);
+ if (strncmp(field, "Status:", 7) == 0) {
+ fprintf(new_status_file, "Status: %s\n", status_from_hashtable);
+ } else {
+ fprintf(new_status_file, "%s\n", field);
+ }
+ free(field);
+ }
+ write_flag = TRUE;
+ fputs("\n", new_status_file);
}
}
- if (pkg != 0) {
- continue;
- }
- if (strstr(line, "Status: ") == line && statpkg != 0) {
- snprintf(line, sizeof(line), "Status: %s %s %s",
- state_words_want[statpkg->state_want - 1],
- state_words_flag[statpkg->state_flag - 1],
- state_words_status[statpkg->state_status - 1]);
+ }
+
+ /* If the package from the status file wasnt handle above, do it now*/
+ if (write_flag == FALSE) {
+ fprintf(new_status_file, "%s\n\n", control_buffer);
+ }
+
+ if (status_from_file != NULL) {
+ free(status_from_file);
+ }
+ free(package_name);
+ free(control_buffer);
+ }
+ /* Write any new packages */
+ for(i = 0; deb_file[i] != NULL; i++) {
+ status_num = search_status_hashtable(name_hashtable[package_hashtable[deb_file[i]->package]->name]);
+ if (strcmp("reinstreq", name_hashtable[get_status(status_num, 2)]) == 0) {
+ char *last_char;
+ /* remove trailing \n's */
+ while(1) {
+ last_char = last_char_is(deb_file[i]->control_file, '\n');
+ if (last_char) {
+ *last_char = '\0';
+ } else {
+ break;
+ }
}
- fprintf(fout, "%s\n", line);
+
+ fputs(deb_file[i]->control_file, new_status_file);
+ set_status(status_num, "ok", 2);
+ fprintf(new_status_file, "\nStatus: %s\n\n", name_hashtable[status_hashtable[status_num]->status]);
}
- fclose(fin);
}
- free(line);
+ fclose(old_status_file);
+ fclose(new_status_file);
- // Print out packages we processed.
- for (pkg = pkgs; pkg != 0; pkg = pkg->next) {
- write_package(fout, pkg);
- }
- fclose(fout);
- /*
- * Its ok if renaming statusfile fails becasue it doesnt exist
- */
- if (rename(statusfile, bak_statusfile) == -1) {
+ /* Create a seperate backfile to dpkg */
+ if (rename("/var/lib/dpkg/status", "/var/lib/dpkg/status.udeb.bak") == -1) {
struct stat stat_buf;
- if (stat(statusfile, &stat_buf) == 0) {
- error_msg("Couldnt create backup status file");
- return(EXIT_FAILURE);
+ if (stat("/var/lib/dpkg/status", &stat_buf) == 0) {
+ error_msg_and_die("Couldnt create backup status file");
}
+ /* Its ok if renaming the status file fails becasue status
+ * file doesnt exist, maybe we are starting from scratch */
error_msg("No status file found, creating new one");
}
- if (rename(new_statusfile, statusfile) == -1) {
- error_msg("Couldnt create status file");
- return(EXIT_FAILURE);
+ if (rename("/var/lib/dpkg/status.udeb", "/var/lib/dpkg/status") == -1) {
+ error_msg_and_die("DANGER: Couldnt create status file, you need to manually repair your status file");
}
- return(EXIT_SUCCESS);
}
-static int is_file(const char *fn)
+int check_deps(deb_file_t **deb_file, int deb_start, int dep_max_count)
{
- struct stat statbuf;
+ int *conflicts = NULL;
+ int conflicts_num = 0;
+ int state_status;
+ int state_flag;
+ int state_want;
+ unsigned int status_package_num;
+ int i = deb_start;
+ int j, k;
+
+ /* Check for conflicts
+ * TODO: TEST if conflicts with other packages to be installed
+ *
+ * Add install packages and the packages they provide
+ * to the list of files to check conflicts for
+ */
- if (stat(fn, &statbuf) < 0) {
- return 0;
+ /* Create array of package numbers to check against
+ * installed package for conflicts*/
+ while (deb_file[i] != NULL) {
+ const unsigned int package_num = deb_file[i]->package;
+ conflicts = xrealloc(conflicts, sizeof(int) * (conflicts_num + 1));
+ conflicts[conflicts_num] = package_num;
+ conflicts_num++;
+ /* add provides to conflicts list */
+ for (j = 0; j < package_hashtable[package_num]->num_of_edges; j++) {
+ if (package_hashtable[package_num]->edge[j]->type == EDGE_PROVIDES) {
+ const int conflicts_package_num = search_package_hashtable(
+ package_hashtable[package_num]->edge[j]->name,
+ package_hashtable[package_num]->edge[j]->version,
+ package_hashtable[package_num]->edge[j]->operator);
+ if (package_hashtable[conflicts_package_num] == NULL) {
+ /* create a new package */
+ common_node_t *new_node = (common_node_t *) xmalloc(sizeof(common_node_t));
+ new_node->name = package_hashtable[package_num]->edge[j]->name;
+ new_node->version = package_hashtable[package_num]->edge[j]->version;
+ new_node->num_of_edges = 0;
+ new_node->edge = NULL;
+ package_hashtable[conflicts_package_num] = new_node;
+ }
+ conflicts = xrealloc(conflicts, sizeof(int) * (conflicts_num + 1));
+ conflicts[conflicts_num] = conflicts_package_num;
+ conflicts_num++;
+ }
+ }
+ i++;
}
- return S_ISREG(statbuf.st_mode);
+
+ /* Check conflicts */
+ for (i = 0; i < conflicts_num; i++) {
+ /* Check for conflicts */
+ for (j = 0; j < STATUS_HASH_PRIME; j++) {
+ if (status_hashtable[j] == NULL) {
+ continue;
+ }
+ state_flag = get_status(j, 2);
+ state_status = get_status(j, 3);
+ if ((state_status != search_name_hashtable("installed"))
+ && (state_flag != search_name_hashtable("want-install"))) {
+ continue;
+ }
+ status_package_num = status_hashtable[j]->package;
+ for (k = 0; k < package_hashtable[status_package_num]->num_of_edges; k++) {
+ const edge_t *package_edge = package_hashtable[status_package_num]->edge[k];
+ if (package_edge->type != EDGE_CONFLICTS) {
+ continue;
+ }
+ if (package_edge->name != package_hashtable[conflicts[i]]->name) {
+ continue;
+ }
+ /* There is a conflict against the package name
+ * check if version conflict as well */
+ if (test_version(package_hashtable[deb_file[i]->package]->version,
+ package_edge->version, package_edge->operator)) {
+ error_msg_and_die("Package %s conflict with %s",
+ name_hashtable[package_hashtable[deb_file[i]->package]->name],
+ name_hashtable[package_hashtable[status_package_num]->name]);
+ }
+ }
+ }
+ }
+
+ /* Check dependendcies */
+ i = 0;
+ while (deb_file[i] != NULL) {
+ const common_node_t *package_node = package_hashtable[deb_file[i]->package];
+ int status_num = 0;
+
+ for (j = 0; j < package_hashtable[deb_file[i]->package]->num_of_edges; j++) {
+ const edge_t *package_edge = package_node->edge[j];
+ const unsigned int package_num = search_package_hashtable(package_edge->name,
+ package_edge->version, package_edge->operator);
+
+ status_num = search_status_hashtable(name_hashtable[package_hashtable[package_num]->name]);
+ state_status = get_status(status_num, 3);
+ state_want = get_status(status_num, 1);
+ switch (package_edge->type) {
+ case(EDGE_PRE_DEPENDS):
+ case(EDGE_OR_PRE_DEPENDS):
+ /* It must be already installed */
+ /* NOTE: This is untested, nothing apropriate in my status file */
+ if ((package_hashtable[package_num] == NULL) || (state_status != search_name_hashtable("installed"))) {
+ error_msg_and_die("Package %s pre-depends on %s, but it is not installed",
+ name_hashtable[package_node->name],
+ name_hashtable[package_edge->name]);
+ }
+ break;
+ case(EDGE_DEPENDS):
+ case(EDGE_OR_DEPENDS):
+ /* It must be already installed, or to be installed */
+ if ((package_hashtable[package_num] == NULL) ||
+ ((state_status != search_name_hashtable("installed")) &&
+ (state_want != search_name_hashtable("want_install")))) {
+ error_msg_and_die("Package %s depends on %s, but it is not installed, or flaged to be installed",
+ name_hashtable[package_node->name],
+ name_hashtable[package_edge->name]);
+ }
+ break;
+ }
+ }
+ i++;
+ }
+ return(TRUE);
}
-static int dpkg_doconfigure(package_t *pkg)
+char **create_list(const char *filename)
{
- int r;
- char postinst[1024];
- char buf[1024];
-
- DPRINTF("Configuring %s\n", pkg->package);
- pkg->state_status = 0;
- snprintf(postinst, sizeof(postinst), "%s%s.postinst", infodir, pkg->package);
+ FILE *list_stream;
+ char **file_list = xmalloc(sizeof(char *));
+ char *line = NULL;
+ char *last_char;
+ int length = 0;
+ int count = 0;
- if (is_file(postinst)) {
- snprintf(buf, sizeof(buf), "%s configure", postinst);
- if ((r = do_system(buf)) != 0) {
- error_msg("postinst exited with status %d\n", r);
- pkg->state_status = state_status_halfconfigured;
- return 1;
+ list_stream = fopen(filename, "r");
+ if (list_stream == NULL) {
+ return(NULL);
+ }
+ while (getline(&line, &length, list_stream) != -1) {
+ file_list = xrealloc(file_list, sizeof(char *) * (length + 1));
+ last_char = last_char_is(line, '\n');
+ if (last_char) {
+ *last_char = '\0';
}
+ file_list[count] = xstrdup(line);
+ free(line);
+ count++;
+ length = 0;
+ }
+ fclose(list_stream);
+ if (count == 0) {
+ return(NULL);
+ } else {
+ file_list[count] = NULL;
+ return(file_list);
}
- pkg->state_status = state_status_installed;
-
- return 0;
}
-static int dpkg_dounpack(package_t *pkg)
+/* maybe i should try and hook this into remove_file.c somehow */
+int remove_file_array(char **remove_names, char **exclude_names)
{
- FILE *out_stream;
- char *info_prefix;
- int status = TRUE;
- int r = 0;
-
- DPRINTF("Unpacking %s\n", pkg->package);
+ struct stat path_stat;
+ int match_flag;
+ int remove_flag = FALSE;
+ int i,j;
- /* extract the data file */
- deb_extract(pkg->filename, stdout, (extract_data_tar_gz | extract_all_to_fs), "/", NULL);
+ if (remove_names == NULL) {
+ return(FALSE);
+ }
+ for (i = 0; remove_names[i] != NULL; i++) {
+ match_flag = FALSE;
+ if (exclude_names != NULL) {
+ for (j = 0; exclude_names[j] != 0; j++) {
+ if (strcmp(remove_names[i], exclude_names[j]) == 0) {
+ match_flag = TRUE;
+ break;
+ }
+ }
+ }
+ if (!match_flag) {
+ if (lstat(remove_names[i], &path_stat) < 0) {
+ continue;
+ }
+ if (S_ISDIR(path_stat.st_mode)) {
+ if (rmdir(remove_names[i]) != -1) {
+ remove_flag = TRUE;
+ }
+ } else {
+ if (unlink(remove_names[i]) != -1) {
+ remove_flag = TRUE;
+ }
+ }
+ }
+ }
+ return(remove_flag);
+}
- /* extract the control files */
- info_prefix = (char *) malloc(strlen(pkg->package) + strlen(infodir) + 2 + 5 + 1);
- sprintf(info_prefix, "%s/%s.", infodir, pkg->package);
- deb_extract(pkg->filename, stdout, (extract_control_tar_gz | extract_all_to_fs), info_prefix, NULL);
+int run_package_script(const char *package_name, const char *script_type)
+{
+ struct stat path_stat;
+ char *script_path;
- /* Create the list file */
- strcat(info_prefix, "list");
- out_stream = wfopen(info_prefix, "w");
- deb_extract(pkg->filename, out_stream, (extract_data_tar_gz | extract_list), NULL, NULL);
- fclose(out_stream);
+ script_path = xmalloc(strlen(package_name) + strlen(script_type) + 21);
+ sprintf(script_path, "/var/lib/dpkg/info/%s.%s", package_name, script_type);
- pkg->state_want = state_want_install;
- pkg->state_flag = state_flag_ok;
-
- if (status == TRUE) {
- pkg->state_status = state_status_unpacked;
+ /* If the file doesnt exist is isnt a fatal */
+ if (lstat(script_path, &path_stat) < 0) {
+ return(EXIT_SUCCESS);
} else {
- pkg->state_status = state_status_halfinstalled;
+ return(system(script_path));
}
-
- return r;
}
-/*
- * Extract and parse the control file from control.tar.gz
- */
-static int dpkg_read_control(package_t *pkg)
+void all_control_list(char **remove_files, const char *package_name)
{
- FILE *pkg_file;
- char *control_buffer = NULL;
+ const char *all_extensions[11] = {"preinst", "postinst", "prerm", "postrm",
+ "list", "md5sums", "shlibs", "conffiles", "config", "templates", NULL };
+ int i;
- if ((pkg_file = wfopen(pkg->filename, "r")) == NULL) {
- return EXIT_FAILURE;
+ /* Create a list of all /var/lib/dpkg/info/<package> files */
+ for(i = 0; i < 10; i++) {
+ remove_files[i] = xmalloc(strlen(package_name) + strlen(all_extensions[i]) + 21);
+ sprintf(remove_files[i], "/var/lib/dpkg/info/%s.%s", package_name, all_extensions[i]);
}
- control_buffer = deb_extract(pkg->filename, stdout, (extract_control_tar_gz | extract_one_to_buffer), NULL, "./control");
- fill_package_struct(pkg, control_buffer);
- return EXIT_SUCCESS;
+ remove_files[10] = NULL;
}
-static int dpkg_unpack(package_t *pkgs, void *status)
+void remove_package(const unsigned int package_num)
{
- int r = 0;
- package_t *pkg;
-
- for (pkg = pkgs; pkg != 0; pkg = pkg->next) {
- dpkg_read_control(pkg);
- if ((r = dpkg_dounpack(pkg)) != 0 ) {
- break;
- }
+ const char *package_name = name_hashtable[package_hashtable[package_num]->name];
+ const unsigned int status_num = search_status_hashtable(package_name);
+ const int package_name_length = strlen(package_name);
+ char **remove_files;
+ char **exclude_files;
+ char list_name[package_name_length + 25];
+ char conffile_name[package_name_length + 30];
+ int return_value;
+
+ /* run prerm script */
+ return_value = run_package_script(package_name, "prem");
+ if (return_value == -1) {
+ error_msg_and_die("script failed, prerm failure");
}
- status_merge(status, pkgs);
- return r;
-}
+ /* Create a list of files to remove, and a seperate list of those to keep */
+ sprintf(list_name, "/var/lib/dpkg/info/%s.list", package_name);
+ remove_files = create_list(list_name);
-static int dpkg_configure(package_t *pkgs, void *status)
-{
- int r = 0;
- void *found;
- package_t *pkg;
+ sprintf(conffile_name, "/var/lib/dpkg/info/%s.conffiles", package_name);
+ exclude_files = create_list(conffile_name);
- for (pkg = pkgs; pkg != 0 && r == 0; pkg = pkg->next) {
- found = tfind(pkg, &status, package_compare);
+ /* Some directories cant be removed straight away, so do multiple passes */
+ while (remove_file_array(remove_files, exclude_files) == TRUE);
- if (found == 0) {
- error_msg("Trying to configure %s, but it is not installed", pkg->package);
- r = 1;
- }
- /* configure the package listed in the status file;
- * not pkg, as we have info only for the latter
- */
- else {
- r = dpkg_doconfigure(*(package_t **)found);
- }
- }
- status_merge(status, 0);
+ /* Create a list of all /var/lib/dpkg/info/<package> files */
+ remove_files = xmalloc(11);
+ all_control_list(remove_files, package_name);
- return r;
+ /* Create a list of files in /var/lib/dpkg/info/<package>.* to keep */
+ exclude_files = xmalloc(sizeof(char*) * 3);
+ exclude_files[0] = xstrdup(conffile_name);
+ exclude_files[1] = xmalloc(package_name_length + 27);
+ sprintf(exclude_files[1], "/var/lib/dpkg/info/%s.postrm", package_name);
+ exclude_files[2] = NULL;
+
+ remove_file_array(remove_files, exclude_files);
+
+ /* rename <package>.conffile to <package>.list */
+ rename(conffile_name, list_name);
+
+ /* Change package status */
+ set_status(status_num, "deinstall", 1);
+ set_status(status_num, "config-files", 3);
}
-static int dpkg_install(package_t *pkgs, void *status)
+void purge_package(const unsigned int package_num)
{
- package_t *p, *ordered = 0;
-
- /* Stage 1: parse all the control information */
- for (p = pkgs; p != 0; p = p->next) {
- dpkg_read_control(p);
+ const char *package_name = name_hashtable[package_hashtable[package_num]->name];
+ const unsigned int status_num = search_status_hashtable(package_name);
+ char **remove_files;
+ char **exclude_files;
+ char list_name[strlen(package_name) + 25];
+
+ /* run prerm script */
+ if (run_package_script(package_name, "prerm") == -1) {
+ error_msg_and_die("script failed, prerm failure");
}
- /* Stage 2: resolve dependencies */
-#ifdef DODEPENDS
- ordered = depends_resolve(pkgs, status);
-#else
- ordered = pkgs;
-#endif
-
- /* Stage 3: install */
- for (p = ordered; p != 0; p = p->next) {
- p->state_want = state_want_install;
+ /* Create a list of files to remove */
+ sprintf(list_name, "/var/lib/dpkg/info/%s.list", package_name);
+ remove_files = create_list(list_name);
- /* for now the flag is always set to ok... this is probably
- * not what we want
- */
- p->state_flag = state_flag_ok;
+ exclude_files = xmalloc(1);
+ exclude_files[0] = NULL;
- DPRINTF("Installing %s\n", p->package);
- if (dpkg_dounpack(p) != 0) {
- perror_msg(p->filename);
- }
+ /* Some directories cant be removed straight away, so do multiple passes */
+ while (remove_file_array(remove_files, exclude_files) == TRUE);
- if (dpkg_doconfigure(p) != 0) {
- perror_msg(p->filename);
- }
+ /* Create a list of all /var/lib/dpkg/info/<package> files */
+ remove_files = xmalloc(11);
+ all_control_list(remove_files, package_name);
+ remove_file_array(remove_files, exclude_files);
+
+ /* run postrm script */
+ if (run_package_script(package_name, "postrm") == -1) {
+ error_msg_and_die("postrm fialure.. set status to what?");
}
+ /* Change package status */
+ set_status(status_num, "purge", 1);
+ set_status(status_num, "not-installed", 3);
+}
+
+void unpack_package(deb_file_t *deb_file)
+{
+ const unsigned int package_name_num = package_hashtable[deb_file->package]->name;
+ const char *package_name = name_hashtable[package_name_num];
+ const unsigned int status_num = search_status_hashtable(package_name);
+ unsigned int status_package_num;
- if (ordered != 0) {
- status_merge(status, pkgs);
+ FILE *out_stream;
+ char *info_prefix;
+
+ /* If existing version, remove it first */
+ if (strcmp(name_hashtable[get_status(status_num, 3)], "installed") == 0) {
+ /* Package is already installed, remove old version first */
+ printf("Preparing to replace %s %s (using %s) ...\n", package_name,
+ name_hashtable[package_hashtable[status_package_num]->version],
+ deb_file->filename);
+ remove_package(status_package_num);
+ } else {
+ printf("Unpacking %s (from %s) ...\n", package_name, deb_file->filename);
}
- return 0;
+ /* Extract control.tar.gz to /var/lib/dpkg/info/<package>.filename */
+ info_prefix = (char *) xmalloc(sizeof(package_name) + 20 + 4 + 1);
+ sprintf(info_prefix, "/var/lib/dpkg/info/%s.", package_name);
+ deb_extract(deb_file->filename, stdout, (extract_quiet | extract_control_tar_gz | extract_all_to_fs), info_prefix, NULL);
+
+ /* Extract data.tar.gz to the root directory */
+ deb_extract(deb_file->filename, stdout, (extract_quiet | extract_data_tar_gz | extract_all_to_fs), "/", NULL);
+
+ /* Create the list file */
+ strcat(info_prefix, "list");
+
+ out_stream = wfopen(info_prefix, "w");
+ deb_extract(deb_file->filename, out_stream, (extract_quiet | extract_data_tar_gz | extract_list), NULL, NULL);
+ fclose(out_stream);
+
+ /* change status */
+ set_status(status_num, "install", 1);
+ set_status(status_num, "unpacked", 3);
}
-/*
- * Not implemented yet
- *
-static int dpkg_remove(package_t *pkgs, void *status)
+void configure_package(deb_file_t *deb_file)
{
- package_t *p;
-
- for (p = pkgs; p != 0; p = p->next)
- {
+ int return_value;
+ int status_num;
+
+ /* Run the preinst prior to extracting */
+ return_value = run_package_script(name_hashtable[package_hashtable[deb_file->package]->name], "postinst");
+ if (return_value == -1) {
+ /* TODO: handle failure gracefully */
+ error_msg_and_die("postrm fialure.. set status to what?");
}
- status_merge(status, 0);
- return 0;
+ /* Change status to reflect success */
+ status_num = search_status_hashtable(name_hashtable[package_hashtable[deb_file->package]->name]);
+ set_status(status_num, "install", 1);
+ set_status(status_num, "installed", 3);
}
-*/
extern int dpkg_main(int argc, char **argv)
{
- const int arg_install = 1;
- const int arg_unpack = 2;
- const int arg_configure = 4;
-
- package_t *p, *packages = NULL;
- void *status = NULL;
- int opt = 0;
- int optflag = 0;
+ deb_file_t **deb_file = NULL;
+ status_node_t *status_node;
+ char opt = 0;
+ int package_num;
+ int dpkg_opt = 0;
+ int deb_count = 0;
+ int state_status;
+ int status_num;
+ int i;
- while ((opt = getopt(argc, argv, "iruc")) != -1) {
+ while ((opt = getopt(argc, argv, "cF:ilPru")) != -1) {
switch (opt) {
+ case 'c':
+ dpkg_opt |= dpkg_opt_configure;
+ dpkg_opt |= dpkg_opt_package_name;
+ break;
+ case 'F': // equivalent to --force in official dpkg
+ if (strcmp(optarg, "depends") == 0) {
+ dpkg_opt |= dpkg_opt_force_ignore_depends;
+ }
case 'i':
- optflag |= arg_install;
+ dpkg_opt |= dpkg_opt_install;
+ dpkg_opt |= dpkg_opt_filename;
break;
- case 'u':
- optflag |= arg_unpack;
+ case 'l':
+ dpkg_opt |= dpkg_opt_list_installed;
+ case 'P':
+ dpkg_opt |= dpkg_opt_purge;
+ dpkg_opt |= dpkg_opt_package_name;
break;
- case 'c':
- optflag |= arg_configure;
+ case 'r':
+ dpkg_opt |= dpkg_opt_remove;
+ dpkg_opt |= dpkg_opt_package_name;
+ break;
+ case 'u': /* Equivalent to --unpack in official dpkg */
+ dpkg_opt |= dpkg_opt_unpack;
+ dpkg_opt |= dpkg_opt_filename;
break;
default:
show_usage();
}
}
+ if ((argc == optind) || (dpkg_opt == 0)) {
+ show_usage();
+ }
+
+ puts("(Reading database ... xxxxx files and directories installed.)");
+ index_status_file("/var/lib/dpkg/status");
+
+ /* Read arguments and store relevant info in structs */
+ deb_file = xmalloc(sizeof(deb_file_t));
while (optind < argc) {
- p = (package_t *) xcalloc(1, sizeof(package_t));
- if (optflag & arg_configure) {
- p->package = xstrdup(argv[optind]);
- } else {
- p->filename = xstrdup(argv[optind]);
+ deb_file[deb_count] = (deb_file_t *) xmalloc(sizeof(deb_file_t));
+ if (dpkg_opt & dpkg_opt_filename) {
+ deb_file[deb_count]->filename = xstrdup(argv[optind]);
+ deb_file[deb_count]->control_file = deb_extract(argv[optind], stdout, (extract_control_tar_gz | extract_one_to_buffer), NULL, "./control");
+ if (deb_file[deb_count]->control_file == NULL) {
+ error_msg_and_die("Couldnt extract control file");
+ }
+ package_num = fill_package_struct(deb_file[deb_count]->control_file);
+
+ if (package_num == -1) {
+ error_msg("Invalid control file in %s", argv[optind]);
+ continue;
+ }
+ deb_file[deb_count]->package = (unsigned int) package_num;
+ /* Add the package to the status hashtable */
+ if ((dpkg_opt & dpkg_opt_unpack) || (dpkg_opt & dpkg_opt_install)) {
+ status_node = (status_node_t *) xmalloc(sizeof(status_node_t));
+ status_node->package = deb_file[deb_count]->package;
+ /* use reinstreq isnt changed to "ok" until the package control info
+ * is written to the status file*/
+ status_node->status = search_name_hashtable("install reinstreq not-installed");
+
+ status_num = search_status_hashtable(name_hashtable[package_hashtable[deb_file[deb_count]->package]->name]);
+ status_hashtable[status_num] = status_node;
+ }
}
- p->next = packages;
- packages = p;
+ else if (dpkg_opt & dpkg_opt_package_name) {
+ deb_file[deb_count]->filename = NULL;
+ deb_file[deb_count]->control_file = NULL;
+ deb_file[deb_count]->package = search_package_hashtable(
+ search_name_hashtable(argv[optind]),
+ search_name_hashtable("ANY"), VER_ANY);
+ if (package_hashtable[deb_file[deb_count]->package] == NULL) {
+ error_msg_and_die("unknown package, %s\n", argv[optind]);
+ }
+ state_status = get_status(search_status_hashtable(name_hashtable[package_hashtable[deb_file[deb_count]->package]->name]), 3);
+ /* check package status is "installed" */
+ if (dpkg_opt & dpkg_opt_remove) {
+ if ((strcmp(name_hashtable[state_status], "not-installed") == 0) ||
+ (strcmp(name_hashtable[state_status], "config-files") == 0)) {
+ error_msg_and_die("%s is already removed.", name_hashtable[package_hashtable[deb_file[deb_count]->package]->name]);
+ }
+ }
+ else if (dpkg_opt & dpkg_opt_purge) {
+ /* if package status is "conf-files" then its ok */
+ if (strcmp(name_hashtable[state_status], "not-installed") == 0) {
+ error_msg_and_die("%s is already purged.", name_hashtable[package_hashtable[deb_file[deb_count]->package]->name]);
+ }
+ }
+ }
+ deb_count++;
optind++;
}
+ deb_file[deb_count] = NULL;
- make_directory((char *)infodir, S_IRWXU, FILEUTILS_RECUR);
+ /* Check that the deb file arguments are installable */
+ /* TODO: check dependencies before removing */
+ if ((dpkg_opt & dpkg_opt_force_ignore_depends) != dpkg_opt_force_ignore_depends) {
+ if (!check_deps(deb_file, 0, deb_count)) {
+ error_msg_and_die("Dependency check fialed");
+ }
+ }
- status = status_read();
+ for (i = 0; i < deb_count; i++) {
+ /* Remove or purge packages */
+ if (dpkg_opt & dpkg_opt_remove) {
+ remove_package(deb_file[i]->package);
+ }
+ else if (dpkg_opt & dpkg_opt_purge) {
+ purge_package(deb_file[i]->package);
+ }
+ else if (dpkg_opt & dpkg_opt_unpack) {
+ unpack_package(deb_file[i]);
+ }
+ else if (dpkg_opt & dpkg_opt_install) {
+ unpack_package(deb_file[i]);
+ configure_package(deb_file[i]);
+ }
+ else if (dpkg_opt & dpkg_opt_configure) {
+ configure_package(deb_file[i]);
+ }
+ }
- if (optflag & arg_install) {
- return dpkg_install(packages, status);
+ write_status_file(deb_file);
+
+ for (i = 0; i < NAME_HASH_PRIME; i++) {
+ if (name_hashtable[i] != NULL) {
+ free(name_hashtable[i]);
+ }
}
- else if (optflag & arg_unpack) {
- return dpkg_unpack(packages, status);
+ for (i = 0; i < PACKAGE_HASH_PRIME; i++) {
+ free_package(package_hashtable[i]);
}
- else if (optflag & arg_configure) {
- return dpkg_configure(packages, status);
+ for (i = 0; i < STATUS_HASH_PRIME; i++) {
+ if (status_hashtable[i] != NULL) {
+ free(status_hashtable[i]);
+ }
}
+
return(EXIT_FAILURE);
}
+
-#include <ctype.h>
-#include <dirent.h>
+/*
+ * Mini dpkg implementation for busybox.
+ * This is not meant as a replacemnt for dpkg
+ *
+ * Copyright (C) 2001 by Glenn McGrath
+ *
+ * Started life as a busybox implementation of udpkg
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+/*
+ * Known difference between busybox dpkg and the official dpkg that i dont
+ * consider important, its worth keeping a note of differences anyway, just to
+ * make it easier to maintain.
+ * - The first value for the Confflile: field isnt placed on a new line.
+ * - The <package>.control file is extracted and kept in the info dir.
+ * - When installing a package the Status: field is placed at the end of the
+ * section, rather than just after the Package: field.
+ * - Packages with previously unknown status are inserted at the begining of
+ * the status file
+ *
+ * Bugs that need to be fixed
+ * - (unknown, please let me know when you find any)
+ *
+ */
+
#include <getopt.h>
-#include <stdio.h>
-#include <string.h>
#include <stdlib.h>
-#include <search.h>
-#include <errno.h>
-#include <fcntl.h>
+#include <string.h>
#include <unistd.h>
-#include <utime.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-
#include "busybox.h"
-#define DEPENDSMAX 64 /* maximum number of depends we can handle */
-
-/* Should we do full dependency checking? */
-//#define DODEPENDS 0
-
-/* Should we do debugging? */
-//#define DODEBUG 0
-
-#ifdef DODEBUG
-#define SYSTEM(x) do_system(x)
-#define DPRINTF(fmt,args...) fprintf(stderr, fmt, ##args)
-#else
-#define SYSTEM(x) system(x)
-#define DPRINTF(fmt,args...) /* nothing */
-#endif
-
-/* from dpkg-deb.c */
-
-static const char statusfile[] = "/var/lib/dpkg/status.udeb";
-static const char new_statusfile[] = "/var/lib/dpkg/status.udeb.new";
-static const char bak_statusfile[] = "/var/lib/dpkg/status.udeb.bak";
-
-static const char infodir[] = "/var/lib/dpkg/info/";
-static const char udpkg_quiet[] = "UDPKG_QUIET";
-
-//static const int status_want_unknown = 1;
-static const int state_want_install = 2;
-//static const int state_want_hold = 3;
-//static const int state_want_deinstall = 4;
-//static const int state_want_purge = 5;
-
-static const int state_flag_ok = 1;
-//static const int state_flag_reinstreq = 2;
-//static const int state_flag_hold = 3;
-//static const int state_flag_holdreinstreq = 4;
-
-//static const int state_statusnoninstalled = 1;
-static const int state_status_unpacked = 2;
-static const int state_status_halfconfigured = 3;
-static const int state_status_installed = 4;
-static const int state_status_halfinstalled = 5;
-//static const int state_statusconfigfiles = 6;
-//static const int state_statuspostinstfailed = 7;
-//static const int state_statusremovalfailed = 8;
-
-static const char *state_words_want[] = { "unknown", "install", "hold", "deinstall", "purge", 0 };
-static const char *state_words_flag[] = { "ok", "reinstreq", "hold", "hold-reinstreq", 0 };
-static const char *state_words_status[] = { "not-installed", "unpacked", "half-configured", "installed",
- "half-installed", "config-files", "post-inst-failed", "removal-failed", 0 };
-
-static const int color_white = 0;
-static const int color_grey = 1;
-static const int color_black = 2;
-
-/* data structures */
-typedef struct package_s {
- char *filename;
- char *package;
- unsigned char state_want;
- unsigned char state_flag;
- unsigned char state_status;
- char *depends;
- char *provides;
- char *description;
- char *priority;
- char *section;
- char *installed_size;
- char *maintainer;
- char *source;
- char *version;
- char *pre_depends;
- char *replaces;
- char *recommends;
- char *suggests;
- char *conflicts;
- char *conffiles;
- char *long_description;
- char *architecture;
- char *md5sum;
- int installer_menu_item;
- char color; /* for topo-sort */
- struct package_s *requiredfor[DEPENDSMAX];
- unsigned short requiredcount;
- struct package_s *next;
-} package_t;
-
-#ifdef DODEBUG
-static int do_system(const char *cmd)
-{
- DPRINTF("cmd is %s\n", cmd);
- return system(cmd);
-}
-#else
-#define do_system(cmd) system(cmd)
-#endif
+/* NOTE: If you vary HASH_PRIME sizes be aware,
+ * 1) Tweaking these will have a big effect on how much memory this program uses.
+ * 2) For computational efficiency these hash tables should be at least 20%
+ * larger than the maximum number of elements stored in it.
+ * 3) All _HASH_PRIME's must be a prime number or chaos is assured, if your looking
+ * for a prime, try http://www.utm.edu/research/primes/lists/small/10000.txt
+ * 4) If you go bigger than 15 bits you may get into trouble (untested) as its
+ * sometimes cast to an unsigned int, if you go to 16 bit you will overlap
+ * int's and chaos is assured, 16381 is the max prime for 14 bit field
+ */
-static int package_compare(const void *p1, const void *p2)
-{
- return strcmp(((package_t *)p1)->package,
- ((package_t *)p2)->package);
-}
+/* NAME_HASH_PRIME, Stores package names and versions,
+ * I estimate it should be at least 50% bigger than PACKAGE_HASH_PRIME,
+ * as there a lot of duplicate version numbers */
+#define NAME_HASH_PRIME 16381
+char *name_hashtable[NAME_HASH_PRIME + 1];
+
+/* PACKAGE_HASH_PRIME, Maximum number of unique packages,
+ * It must not be smaller than STATUS_HASH_PRIME,
+ * Currently only packages from status_hashtable are stored in here, but in
+ * future this may be used to store packages not only from a status file,
+ * but an available_hashtable, and even multiple packages files.
+ * Package can be stored more than once if they have different versions.
+ * e.g. The same package may have different versions in the status file
+ * and available file */
+#define PACKAGE_HASH_PRIME 10007
+typedef struct edge_s {
+ unsigned int operator:3;
+ unsigned int type:4;
+ unsigned int name:14;
+ unsigned int version:14;
+} edge_t;
+
+typedef struct common_node_s {
+ unsigned int name:14;
+ unsigned int version:14;
+ unsigned int num_of_edges:14;
+ edge_t **edge;
+} common_node_t;
+common_node_t *package_hashtable[PACKAGE_HASH_PRIME + 1];
+
+/* Currently it doesnt store packages that have state-status of not-installed
+ * So it only really has to be the size of the maximum number of packages
+ * likely to be installed at any one time, so there is a bit of leaway here */
+#define STATUS_HASH_PRIME 8191
+typedef struct status_node_s {
+ unsigned int package:14; /* has to fit PACKAGE_HASH_PRIME */
+ unsigned int status:14; /* has to fit STATUS_HASH_PRIME */
+} status_node_t;
+status_node_t *status_hashtable[STATUS_HASH_PRIME + 1];
+
+/* Even numbers are for 'extras', like ored dependecies or null */
+enum edge_type_e {
+ EDGE_NULL = 0,
+ EDGE_PRE_DEPENDS = 1,
+ EDGE_OR_PRE_DEPENDS = 2,
+ EDGE_DEPENDS = 3,
+ EDGE_OR_DEPENDS = 4,
+ EDGE_REPLACES = 5,
+ EDGE_PROVIDES = 7,
+ EDGE_CONFLICTS = 9,
+ EDGE_SUGGESTS = 11,
+ EDGE_RECOMMENDS = 13,
+ EDGE_ENHANCES = 15
+};
+enum operator_e {
+ VER_NULL = 0,
+ VER_EQUAL = 1,
+ VER_LESS = 2,
+ VER_LESS_EQUAL = 3,
+ VER_MORE = 4,
+ VER_MORE_EQUAL = 5,
+ VER_ANY = 6
+};
+
+enum dpkg_opt_e {
+ dpkg_opt_purge = 1,
+ dpkg_opt_remove = 2,
+ dpkg_opt_unpack = 4,
+ dpkg_opt_configure = 8,
+ dpkg_opt_install = 16,
+ dpkg_opt_package_name = 32,
+ dpkg_opt_filename = 64,
+ dpkg_opt_list_installed = 128,
+ dpkg_opt_force_ignore_depends = 256
+};
+
+typedef struct deb_file_s {
+ char *control_file;
+ char *filename;
+ unsigned int package:14;
+} deb_file_t;
-#ifdef DODEPENDS
-static char **depends_split(const char *dependsstr)
+void make_hash(const char *key, unsigned int *start, unsigned int *decrement, const int hash_prime)
{
- static char *dependsvec[DEPENDSMAX];
- char *p;
- int i = 0;
+ unsigned long int hash_num = key[0];
+ int len = strlen(key);
+ int i;
- dependsvec[0] = 0;
- if (dependsstr == 0) {
- goto end;
+ /* Maybe i should have uses a "proper" hashing algorithm here instead
+ * of making one up myself, seems to be working ok though. */
+ for(i = 1; i < len; i++) {
+ /* shifts the ascii based value and adds it to previous value
+ * shift amount is mod 24 because long int is 32 bit and data
+ * to be shifted is 8, dont want to shift data to where it has
+ * no effect*/
+ hash_num += ((key[i] + key[i-1]) << ((key[i] * i) % 24));
}
+ *start = (unsigned int) hash_num % hash_prime;
+ *decrement = (unsigned int) 1 + (hash_num % (hash_prime - 1));
+}
- p = xstrdup(dependsstr);
- while (*p != 0 && *p != '\n') {
- if (*p != ' ') {
- if (*p == ',') {
- *p = 0;
- dependsvec[++i] = 0;
- } else {
- if (dependsvec[i] == 0) {
- dependsvec[i] = p;
- }
- }
+/* this adds the key to the hash table */
+int search_name_hashtable(const char *key)
+{
+ unsigned int probe_address = 0;
+ unsigned int probe_decrement = 0;
+
+ make_hash(key, &probe_address, &probe_decrement, NAME_HASH_PRIME);
+ while(name_hashtable[probe_address] != NULL) {
+ if (strcmp(name_hashtable[probe_address], key) == 0) {
+ return(probe_address);
} else {
- *p = 0; /* eat the space... */
+ probe_address -= probe_decrement;
+ if ((int)probe_address < 0) {
+ probe_address += NAME_HASH_PRIME;
+ }
}
- p++;
}
- *p = 0;
+ name_hashtable[probe_address] = xstrdup(key);
-end:
- dependsvec[i+1] = 0;
- return dependsvec;
+ return(probe_address);
}
-/* Topological sort algorithm:
- * ordered is the output list, pkgs is the dependency graph, pkg is
- * the current node
- *
- * recursively add all the adjacent nodes to the ordered list, marking
- * each one as visited along the way
- *
- * yes, this algorithm looks a bit odd when all the params have the
- * same type :-)
+/* this DOESNT add the key to the hashtable
+ * TODO make it consistent with search_name_hashtable
*/
-static void depends_sort_visit(package_t **ordered, package_t *pkgs,
- package_t *pkg)
+unsigned int search_status_hashtable(const char *key)
{
- unsigned short i;
-
- /* mark node as processing */
- pkg->color = color_grey;
-
- /* visit each not-yet-visited node */
- for (i = 0; i < pkg->requiredcount; i++)
- if (pkg->requiredfor[i]->color == color_white)
- depends_sort_visit(ordered, pkgs, pkg->requiredfor[i]);
-
-#if 0
- /* add it to the list */
- newnode = (struct package_t *)xmalloc(sizeof(struct package_t));
- /* make a shallow copy */
- *newnode = *pkg;
- newnode->next = *ordered;
- *ordered = newnode;
-#endif
-
- pkg->next = *ordered;
- *ordered = pkg;
-
- /* mark node as done */
- pkg->color = color_black;
+ unsigned int probe_address = 0;
+ unsigned int probe_decrement = 0;
+
+ make_hash(key, &probe_address, &probe_decrement, STATUS_HASH_PRIME);
+ while(status_hashtable[probe_address] != NULL) {
+ if (strcmp(key, name_hashtable[package_hashtable[status_hashtable[probe_address]->package]->name]) == 0) {
+ break;
+ } else {
+ probe_address -= probe_decrement;
+ if ((int)probe_address < 0) {
+ probe_address += STATUS_HASH_PRIME;
+ }
+ }
+ }
+ return(probe_address);
}
-static package_t *depends_sort(package_t *pkgs)
+/* Need to rethink version comparison, maybe the official dpkg has something i can use ? */
+int version_compare_part(const char *version1, const char *version2)
{
- /* TODO: it needs to break cycles in the to-be-installed package
- * graph... */
- package_t *ordered = NULL;
- package_t *pkg;
-
- for (pkg = pkgs; pkg != 0; pkg = pkg->next) {
- pkg->color = color_white;
+ int upstream_len1 = 0;
+ int upstream_len2 = 0;
+ char *name1_char;
+ char *name2_char;
+ int len1 = 0;
+ int len2 = 0;
+ int tmp_int;
+ int ver_num1;
+ int ver_num2;
+
+ if (version1 == NULL) {
+ version1 = xstrdup("");
+ }
+ if (version2 != NULL) {
+ version2 = xstrdup("");
}
- for (pkg = pkgs; pkg != 0; pkg = pkg->next) {
- if (pkg->color == color_white) {
- depends_sort_visit(&ordered, pkgs, pkg);
+ upstream_len1 = strlen(version1);
+ upstream_len2 = strlen(version2);
+
+ while ((len1 < upstream_len1) || (len2 < upstream_len2)) {
+ /* Compare non-digit section */
+ tmp_int = strcspn(&version1[len1], "0123456789");
+ name1_char = xstrndup(&version1[len1], tmp_int);
+ len1 += tmp_int;
+ tmp_int = strcspn(&version2[len2], "0123456789");
+ name2_char = xstrndup(&version2[len2], tmp_int);
+ len2 += tmp_int;
+ tmp_int = strcmp(name1_char, name2_char);
+ free(name1_char);
+ free(name2_char);
+ if (tmp_int != 0) {
+ return(tmp_int);
+ }
+
+ /* Compare digits */
+ tmp_int = strspn(&version1[len1], "0123456789");
+ name1_char = xstrndup(&version1[len1], tmp_int);
+ len1 += tmp_int;
+ tmp_int = strspn(&version2[len2], "0123456789");
+ name2_char = xstrndup(&version2[len2], tmp_int);
+ len2 += tmp_int;
+ ver_num1 = atoi(name1_char);
+ ver_num2 = atoi(name2_char);
+ free(name1_char);
+ free(name2_char);
+ if (ver_num1 < ver_num2) {
+ return(-1);
}
+ else if (ver_num1 > ver_num2) {
+ return(1);
+ }
+ }
+ return(0);
+}
+
+/* if ver1 < ver2 return -1,
+ * if ver1 = ver2 return 0,
+ * if ver1 > ver2 return 1,
+ */
+int version_compare(const unsigned int ver1, const unsigned int ver2)
+{
+ char *ch_ver1 = name_hashtable[ver1];
+ char *ch_ver2 = name_hashtable[ver2];
+
+ char epoch1, epoch2;
+ char *deb_ver1, *deb_ver2;
+ char *ver1_ptr, *ver2_ptr;
+ char *upstream_ver1;
+ char *upstream_ver2;
+ int result;
+
+ /* Compare epoch */
+ if (ch_ver1[1] == ':') {
+ epoch1 = ch_ver1[0];
+ ver1_ptr = strchr(ch_ver1, ':') + 1;
+ } else {
+ epoch1 = '0';
+ ver1_ptr = ch_ver1;
+ }
+ if (ch_ver2[1] == ':') {
+ epoch2 = ch_ver2[0];
+ ver2_ptr = strchr(ch_ver2, ':') + 1;
+ } else {
+ epoch2 = '0';
+ ver2_ptr = ch_ver2;
+ }
+ if (epoch1 < epoch2) {
+ return(-1);
}
+ else if (epoch1 > epoch2) {
+ return(1);
+ }
+
+ /* Compare upstream version */
+ upstream_ver1 = xstrdup(ver1_ptr);
+ upstream_ver2 = xstrdup(ver2_ptr);
+
+ /* Chop off debian version, and store for later use */
+ deb_ver1 = strrchr(upstream_ver1, '-');
+ deb_ver2 = strrchr(upstream_ver2, '-');
+ if (deb_ver1) {
+ deb_ver1[0] = '\0';
+ deb_ver1++;
+ }
+ if (deb_ver2) {
+ deb_ver2[0] = '\0';
+ deb_ver2++;
+ }
+ result = version_compare_part(upstream_ver1, upstream_ver2);
+
+ free(upstream_ver1);
+ free(upstream_ver2);
- /* Leaks the old list... return the new one... */
- return ordered;
+ if (result != 0) {
+ return(result);
+ }
+
+ /* Compare debian versions */
+ return(version_compare_part(deb_ver1, deb_ver2));
+}
+
+int test_version(const unsigned int version1, const unsigned int version2, const unsigned int operator)
+{
+ const int version_result = version_compare(version1, version2);
+ switch(operator) {
+ case (VER_ANY):
+ return(TRUE);
+ case (VER_EQUAL):
+ if (version_result == 0) {
+ return(TRUE);
+ }
+ break;
+ case (VER_LESS):
+ if (version_result < 0) {
+ return(TRUE);
+ }
+ break;
+ case (VER_LESS_EQUAL):
+ if (version_result <= 0) {
+ return(TRUE);
+ }
+ break;
+ case (VER_MORE):
+ if (version_result > 0) {
+ return(TRUE);
+ }
+ break;
+ case (VER_MORE_EQUAL):
+ if (version_result >= 0) {
+ return(TRUE);
+ }
+ break;
+ }
+ return(FALSE);
}
-/* resolve package dependencies --
- * for each package in the list of packages to be installed, we parse its
- * dependency info to determine if the dependent packages are either
- * already installed, or are scheduled to be installed. If both tests fail
- * than bail.
- *
- * The algorithm here is O(n^2*m) where n = number of packages to be
- * installed and m is the # of dependencies per package. Not a terribly
- * efficient algorithm, but given that at any one time you are unlikely
- * to install a very large number of packages it doesn't really matter
- */
-static package_t *depends_resolve(package_t *pkgs, void *status)
+int search_package_hashtable(const unsigned int name, const unsigned int version, const unsigned int operator)
{
- package_t *pkg, *chk;
- package_t dependpkg;
- char **dependsvec;
- int i;
- void *found;
-
- for (pkg = pkgs; pkg != 0; pkg = pkg->next) {
- dependsvec = depends_split(pkg->depends);
- i = 0;
- while (dependsvec[i] != 0) {
- /* Check for dependencies; first look for installed packages */
- dependpkg.package = dependsvec[i];
- if (((found = tfind(&dependpkg, &status, package_compare)) == 0) ||
- ((chk = *(package_t **)found) && (chk->state_flag & state_flag_ok) &&
- (chk->state_status & state_status_installed))) {
-
- /* if it fails, we look through the list of packages we are going to
- * install */
- for (chk = pkgs; chk != 0; chk = chk->next) {
- if (strcmp(chk->package, dependsvec[i]) == 0 || (chk->provides &&
- strncmp(chk->provides, dependsvec[i], strlen(dependsvec[i])) == 0)) {
- if (chk->requiredcount >= DEPENDSMAX) {
- error_msg("Too many dependencies for %s", chk->package);
- return 0;
- }
- if (chk != pkg) {
- chk->requiredfor[chk->requiredcount++] = pkg;
- }
- break;
- }
- }
- if (chk == 0) {
- error_msg("%s depends on %s, but it is not going to be installed", pkg->package, dependsvec[i]);
- return 0;
- }
+ unsigned int probe_address = 0;
+ unsigned int probe_decrement = 0;
+
+ make_hash(name_hashtable[name], &probe_address, &probe_decrement, PACKAGE_HASH_PRIME);
+ while(package_hashtable[probe_address] != NULL) {
+ if (package_hashtable[probe_address]->name == name) {
+ if (operator == VER_ANY) {
+ return(probe_address);
+ }
+ if (test_version(package_hashtable[probe_address]->version, version, operator)) {
+ return(probe_address);
}
- i++;
+ }
+ probe_address -= probe_decrement;
+ if ((int)probe_address < 0) {
+ probe_address += PACKAGE_HASH_PRIME;
}
}
-
- return depends_sort(pkgs);
+ return(probe_address);
}
-#endif
-
-/* Status file handling routines
- *
- * This is a fairly minimalistic implementation. there are two main functions
- * that are supported:
- *
- * 1) reading the entire status file:
- * the status file is read into memory as a binary-tree, with just the
- * package and status info preserved
- *
- * 2) merging the status file
- * control info from (new) packages is merged into the status file,
- * replacing any pre-existing entries. when a merge happens, status info
- * read using the status_read function is written back to the status file
+
+/*
+ * Create one new node and one new edge for every dependency.
*/
-static unsigned char status_parse(const char *line, const char **status_words)
+void add_split_dependencies(common_node_t *parent_node, const char *whole_line, unsigned int edge_type)
{
- unsigned char status_num;
- int i = 0;
+ char *line = xstrdup(whole_line);
+ char *line2;
+ char *line_ptr1 = NULL;
+ char *line_ptr2 = NULL;
+ char *field;
+ char *field2;
+ char *version;
+ edge_t *edge;
+ int offset_ch;
+ int type;
+
+ field = strtok_r(line, ",", &line_ptr1);
+ do {
+ line2 = xstrdup(field);
+ field2 = strtok_r(line2, "|", &line_ptr2);
+ if ((edge_type == EDGE_DEPENDS) && (strcmp(field, field2) != 0)) {
+ type = EDGE_OR_DEPENDS;
+ }
+ else if ((edge_type == EDGE_PRE_DEPENDS) && (strcmp(field, field2) != 0)) {
+ type = EDGE_OR_PRE_DEPENDS;
+ } else {
+ type = edge_type;
+ }
+
+ do {
+ edge = (edge_t *) xmalloc(sizeof(edge_t));
+ edge->type = type;
+
+ /* Skip any extra leading spaces */
+ field2 += strspn(field2, " ");
+
+ /* Get dependency version info */
+ version = strchr(field2, '(');
+ if (version == NULL) {
+ edge->operator = VER_ANY;
+ /* Get the versions hash number, adding it if the number isnt already in there */
+ edge->version = search_name_hashtable("ANY");
+ } else {
+ /* Skip leading ' ' or '(' */
+ version += strspn(field2, " ");
+ version += strspn(version, "(");
+ /* Calculate length of any operator charactors */
+ offset_ch = strspn(version, "<=>");
+ /* Determine operator */
+ if (offset_ch > 0) {
+ if (strncmp(version, "=", offset_ch) == 0) {
+ edge->operator = VER_EQUAL;
+ }
+ else if (strncmp(version, "<<", offset_ch) == 0) {
+ edge->operator = VER_LESS;
+ }
+ else if (strncmp(version, "<=", offset_ch) == 0) {
+ edge->operator = VER_LESS_EQUAL;
+ }
+ else if (strncmp(version, ">>", offset_ch) == 0) {
+ edge->operator = VER_MORE;
+ }
+ else if (strncmp(version, ">=", offset_ch) == 0) {
+ edge->operator = VER_MORE_EQUAL;
+ } else {
+ error_msg_and_die("Illegal operator\n");
+ }
+ }
+ /* skip to start of version numbers */
+ version += offset_ch;
+ version += strspn(version, " ");
+
+ /* Truncate version at trailing ' ' or ')' */
+ version[strcspn(version, " )")] = '\0';
+ /* Get the versions hash number, adding it if the number isnt already in there */
+ edge->version = search_name_hashtable(version);
+ }
+
+ /* Get the dependency name */
+ field2[strcspn(field2, " (")] = '\0';
+ edge->name = search_name_hashtable(field2);
+
+ /* link the new edge to the current node */
+ parent_node->num_of_edges++;
+ parent_node->edge = xrealloc(parent_node->edge, sizeof(edge_t) * (parent_node->num_of_edges + 1));
+ parent_node->edge[parent_node->num_of_edges - 1] = edge;
+ } while ((field2 = strtok_r(NULL, "|", &line_ptr2)) != NULL);
+ free(line2);
+ } while ((field = strtok_r(NULL, ",", &line_ptr1)) != NULL);
+ free(line);
- while (status_words[i] != 0) {
- if (strncmp(line, status_words[i], strlen(status_words[i])) == 0) {
- status_num = (char)i;
- return(status_num);
+ return;
+}
+
+void free_package(common_node_t *node)
+{
+ int i;
+ if (node != NULL) {
+ for (i = 0; i < node->num_of_edges; i++) {
+ if (node->edge[i] != NULL) {
+ free(node->edge[i]);
+ }
+ }
+ if (node->edge != NULL) {
+ free(node->edge);
+ }
+ if (node != NULL) {
+ free(node);
}
- i++;
}
- /* parse error */
- error_msg("Invalid status word");
- return(0);
}
-/*
- * Read the buffered control file and parse it,
- * filling parsed fields into the package structure
- */
-static int fill_package_struct(package_t *package, const char *package_buffer)
+unsigned int fill_package_struct(char *control_buffer)
{
- char *field = NULL;
+ common_node_t *new_node = (common_node_t *) xcalloc(1, sizeof(common_node_t));
+
+ char *field;
+ char *field_name;
+ char *field_value;
int field_start = 0;
- int field_length = 0;
+ int field_length;
+ int seperator_offset;
+ int num = -1;
+ int buffer_length = strlen(control_buffer);
+
+ new_node->version = search_name_hashtable("unknown");
+ while (field_start < buffer_length) {
+ field = read_package_field(&control_buffer[field_start]);
- while ((field = read_package_field(&package_buffer[field_start])) != NULL) {
+ /* Setup start point for next field */
field_length = strlen(field);
field_start += (field_length + 1);
- if (strlen(field) == 0) {
- printf("empty line: *this shouldnt happen i dont think*\n");
- break;
- }
+ seperator_offset = strcspn(field, ":");
+ field_name = xstrndup(field, seperator_offset);
+ field_value = field + seperator_offset + 1;
+ field_value += strspn(field_value, " \n\t");
- /* these are common to both installed and uninstalled packages */
- if (strstr(field, "Package: ") == field) {
- package->package = strdup(field + 9);
- }
- else if (strstr(field, "Depends: ") == field) {
- package->depends = strdup(field + 9);
- }
- else if (strstr(field, "Provides: ") == field) {
- package->provides = strdup(field + 10);
+ if (strcmp(field_name, "Package") == 0) {
+ new_node->name = search_name_hashtable(field_value);
}
- /* This is specific to the Debian Installer. Ifdef? */
- else if (strstr(field, "installer-menu-item: ") == field) {
- package->installer_menu_item = atoi(field + 21);
+ else if (strcmp(field_name, "Version") == 0) {
+ new_node->version = search_name_hashtable(field_value);
}
- else if (strstr(field, "Description: ") == field) {
- package->description = strdup(field + 13);
+ else if (strcmp(field_name, "Pre-Depends") == 0) {
+ add_split_dependencies(new_node, field_value, EDGE_PRE_DEPENDS);
}
- else if (strstr(field, "Priority: ") == field) {
- package->priority = strdup(field + 10);
+ else if (strcmp(field_name, "Depends") == 0) {
+ add_split_dependencies(new_node, field_value, EDGE_DEPENDS);
}
- else if (strstr(field, "Section: ") == field) {
- package->section = strdup(field + 9);
+ else if (strcmp(field_name, "Replaces") == 0) {
+ add_split_dependencies(new_node, field_value, EDGE_REPLACES);
}
- else if (strstr(field, "Installed-Size: ") == field) {
- package->installed_size = strdup(field + 16);
+ else if (strcmp(field_name, "Provides") == 0) {
+ add_split_dependencies(new_node, field_value, EDGE_PROVIDES);
}
- else if (strstr(field, "Maintainer: ") == field) {
- package->maintainer = strdup(field + 12);
+ else if (strcmp(field_name, "Conflicts") == 0) {
+ add_split_dependencies(new_node, field_value, EDGE_CONFLICTS);
}
- else if (strstr(field, "Version: ") == field) {
- package->version = strdup(field + 9);
- }
- else if (strstr(field, "Suggests: ") == field) {
- package->suggests = strdup(field + 10);
- }
- else if (strstr(field, "Recommends: ") == field) {
- package->recommends = strdup(field + 12);
- }
-/* else if (strstr(field, "Conffiles: ") == field) {
- package->conffiles = read_block(file);
- package->conffiles = xcalloc(1, 1);
- while ((field = strtok(NULL, "\n")) != NULL) {
- package->long_description = xrealloc(package->conffiles,
- strlen(package->conffiles) + strlen(field) + 1);
- strcat(package->conffiles, field);
- }
- }
-*/
- /* These are only in available file */
- else if (strstr(field, "Architecture: ") == field) {
- package->architecture = strdup(field + 14);
+ else if (strcmp(field_name, "Suggests") == 0) {
+ add_split_dependencies(new_node, field_value, EDGE_SUGGESTS);
}
- else if (strstr(field, "Filename: ") == field) {
- package->filename = strdup(field + 10);
+ else if (strcmp(field_name, "Recommends") == 0) {
+ add_split_dependencies(new_node, field_value, EDGE_RECOMMENDS);
}
- else if (strstr(field, "MD5sum ") == field) {
- package->md5sum = strdup(field + 7);
+ else if (strcmp(field_name, "Enhances") == 0) {
+ add_split_dependencies(new_node, field_value, EDGE_ENHANCES);
}
-
- /* This is only needed for status file */
- if (strstr(field, "Status: ") == field) {
- char *word_pointer;
-
- word_pointer = strchr(field, ' ') + 1;
- package->state_want = status_parse(word_pointer, state_words_want);
- word_pointer = strchr(word_pointer, ' ') + 1;
- package->state_flag = status_parse(word_pointer, state_words_flag);
- word_pointer = strchr(word_pointer, ' ') + 1;
- package->state_status = status_parse(word_pointer, state_words_status);
- } else {
- package->state_want = status_parse("purge", state_words_want);
- package->state_flag = status_parse("ok", state_words_flag);
- package->state_status = status_parse("not-installed", state_words_status);
- }
-
+ free(field_name);
free(field);
}
- return EXIT_SUCCESS;
+ if (new_node->version == search_name_hashtable("unknown")) {
+ free_package(new_node);
+ return(-1);
+ }
+ num = search_package_hashtable(new_node->name, new_node->version, VER_EQUAL);
+ if (package_hashtable[num] == NULL) {
+ package_hashtable[num] = new_node;
+ } else {
+ free_package(new_node);
+ }
+ return(num);
}
-extern void write_package(FILE *out_file, package_t *pkg)
+/* if num = 1, it returns the want status, 2 returns flag, 3 returns status */
+unsigned int get_status(const unsigned int status_node, const int num)
{
- if (pkg->package) {
- fprintf(out_file, "Package: %s\n", pkg->package);
- }
- if ((pkg->state_want != 0) || (pkg->state_flag != 0)|| (pkg->state_status != 0)) {
- fprintf(out_file, "Status: %s %s %s\n",
- state_words_want[pkg->state_want - 1],
- state_words_flag[pkg->state_flag - 1],
- state_words_status[pkg->state_status - 1]);
- }
- if (pkg->depends) {
- fprintf(out_file, "Depends: %s\n", pkg->depends);
- }
- if (pkg->provides) {
- fprintf(out_file, "Provides: %s\n", pkg->provides);
- }
- if (pkg->priority) {
- fprintf(out_file, "Priority: %s\n", pkg->priority);
- }
- if (pkg->section) {
- fprintf(out_file, "Section: %s\n", pkg->section);
- }
- if (pkg->section) {
- fprintf(out_file, "Installed-Size: %s\n", pkg->installed_size);
- }
- if (pkg->maintainer) {
- fprintf(out_file, "Maintainer: %s\n", pkg->maintainer);
- }
- if (pkg->source) {
- fprintf(out_file, "Source: %s\n", pkg->source);
- }
- if (pkg->version) {
- fprintf(out_file, "Version: %s\n", pkg->version);
- }
- if (pkg->pre_depends) {
- fprintf(out_file, "Pre-depends: %s\n", pkg->pre_depends);
- }
- if (pkg->replaces) {
- fprintf(out_file, "Replaces: %s\n", pkg->replaces);
- }
- if (pkg->recommends) {
- fprintf(out_file, "Recommends: %s\n", pkg->recommends);
- }
- if (pkg->suggests) {
- fprintf(out_file, "Suggests: %s\n", pkg->suggests);
- }
- if (pkg->conflicts) {
- fprintf(out_file, "Conflicts: %s\n", pkg->conflicts);
- }
- if (pkg->conffiles) {
- fprintf(out_file, "Conf-files: %s\n", pkg->conffiles);
- }
- if (pkg->architecture) {
- fprintf(out_file, "Architecture: %s\n", pkg->architecture);
- }
- if (pkg->filename) {
- fprintf(out_file, "Filename: %s\n", pkg->filename);
- }
- if (pkg->md5sum) {
- fprintf(out_file, "MD5sum: %s\n", pkg->md5sum);
+ char *status_string = name_hashtable[status_hashtable[status_node]->status];
+ char *state_sub_string;
+ unsigned int state_sub_num;
+ int len;
+ int i;
+
+ /* set tmp_string to point to the start of the word number */
+ for (i = 1; i < num; i++) {
+ /* skip past a word */
+ status_string += strcspn(status_string, " ");
+ /* skip past the seperating spaces */
+ status_string += strspn(status_string, " ");
}
- if (pkg->installer_menu_item) {
- fprintf(out_file, "installer-main-menu %d\n", pkg->installer_menu_item);
+ len = strcspn(status_string, " \n\0");
+ state_sub_string = xstrndup(status_string, len);
+ state_sub_num = search_name_hashtable(state_sub_string);
+ free(state_sub_string);
+ return(state_sub_num);
+}
+
+void set_status(const unsigned int status_node_num, const char *new_value, const int position)
+{
+ const unsigned int new_value_len = strlen(new_value);
+ const unsigned int new_value_num = search_name_hashtable(new_value);
+ unsigned int want = get_status(status_node_num, 1);
+ unsigned int flag = get_status(status_node_num, 2);
+ unsigned int status = get_status(status_node_num, 3);
+ int want_len = strlen(name_hashtable[want]);
+ int flag_len = strlen(name_hashtable[flag]);
+ int status_len = strlen(name_hashtable[status]);
+ char *new_status;
+
+ switch (position) {
+ case (1):
+ want = new_value_num;
+ want_len = new_value_len;
+ break;
+ case (2):
+ flag = new_value_num;
+ flag_len = new_value_len;
+ break;
+ case (3):
+ status = new_value_num;
+ status_len = new_value_len;
+ break;
+ default:
+ error_msg_and_die("DEBUG ONLY: this shouldnt happen");
}
- if (pkg->description) {
- fprintf(out_file, "Description: %s\n", pkg->description);
+
+ new_status = (char *) xmalloc(want_len + flag_len + status_len + 3);
+ sprintf(new_status, "%s %s %s", name_hashtable[want], name_hashtable[flag], name_hashtable[status]);
+ status_hashtable[status_node_num]->status = search_name_hashtable(new_status);
+ return;
+}
+
+void index_status_file(const char *filename)
+{
+ FILE *status_file;
+ char *control_buffer;
+ char *status_line;
+ status_node_t *status_node = NULL;
+ unsigned int status_num;
+
+ status_file = fopen(filename, "r");
+ while ((control_buffer = fgets_str(status_file, "\n\n")) != NULL) {
+ const unsigned int package_num = fill_package_struct(control_buffer);
+ if (package_num != -1) {
+ status_node = xmalloc(sizeof(status_node_t));
+ /* fill_package_struct doesnt handle the status field */
+ status_line = strstr(control_buffer, "Status:");
+ if (status_line != NULL) {
+ status_line += 7;
+ status_line += strspn(status_line, " \n\t");
+ status_line = xstrndup(status_line, strcspn(status_line, "\n\0"));
+ status_node->status = search_name_hashtable(status_line);
+ free(status_line);
+ }
+ status_node->package = package_num;
+ status_num = search_status_hashtable(name_hashtable[package_hashtable[status_node->package]->name]);
+ status_hashtable[status_num] = status_node;
+ }
+ free(control_buffer);
}
- fputc('\n', out_file);
- pkg = pkg->next;
+ fclose(status_file);
+ return;
}
-static void *status_read(void)
+
+char *get_depends_field(common_node_t *package, const int depends_type)
{
- FILE *f;
- void *status = 0;
- package_t *m = 0, *p = 0, *t = 0;
- char *package_control_buffer = NULL;
+ char *depends = NULL;
+ char *old_sep = (char *)xcalloc(1, 3);
+ char *new_sep = (char *)xcalloc(1, 3);
+ int line_size = 0;
+ int depends_size;
- if (getenv(udpkg_quiet) == NULL) {
- printf("(Reading database...)\n");
- }
+ int i;
- if ((f = wfopen(statusfile, "r")) == NULL) {
- return(NULL);
- }
+ for (i = 0; i < package->num_of_edges; i++) {
+ if ((package->edge[i]->type == EDGE_OR_PRE_DEPENDS) ||
+ (package->edge[i]->type == EDGE_OR_DEPENDS)) {
+ }
- while ( (package_control_buffer = fgets_str(f, "\n\n")) != NULL) {
- m = (package_t *)xcalloc(1, sizeof(package_t));
- fill_package_struct(m, package_control_buffer);
- if (m->package) {
- /*
- * If there is an item in the tree by this name,
- * it must be a virtual package; insert real
- * package in preference.
- */
- tdelete(m, &status, package_compare);
- tsearch(m, &status, package_compare);
- if (m->provides) {
- /*
- * A "Provides" triggers the insertion
- * of a pseudo package into the status
- * binary-tree.
- */
- p = (package_t *)xcalloc(1, sizeof(package_t));
- p->package = xstrdup(m->provides);
- t = *(package_t **)tsearch(p, &status, package_compare);
- if (t != p) {
- free(p->package);
- free(p);
+ if ((package->edge[i]->type == depends_type) ||
+ (package->edge[i]->type == depends_type + 1)) {
+ /* Check if its the first time through */
+
+ depends_size = 8 + strlen(name_hashtable[package->edge[i]->name])
+ + strlen(name_hashtable[package->edge[i]->version]);
+ line_size += depends_size;
+ depends = (char *) xrealloc(depends, line_size + 1);
+
+ /* Check to see if this dependency is the type we are looking for
+ * +1 to check for 'extra' types, e.g. ored dependecies */
+ strcpy(old_sep, new_sep);
+ if (package->edge[i]->type == depends_type) {
+ strcpy(new_sep, ", ");
+ }
+ else if (package->edge[i]->type == depends_type + 1) {
+ strcpy(new_sep, "| ");
+ }
+
+ if (depends_size == line_size) {
+ strcpy(depends, "");
+ } else {
+ if ((strcmp(old_sep, "| ") == 0) && (strcmp(new_sep, "| ") == 0)) {
+ strcat(depends, " | ");
} else {
- /*
- * Pseudo package status is the
- * same as the status of the
- * package providing it
- * FIXME: (not quite right, if 2
- * packages of different statuses
- * provide it).
- */
- t->state_want = m->state_want;
- t->state_flag = m->state_flag;
- t->state_status = m->state_status;
+ strcat(depends, ", ");
}
}
- }
- else {
- free(m);
+
+ strcat(depends, name_hashtable[package->edge[i]->name]);
+ if (strcmp(name_hashtable[package->edge[i]->version], "NULL") != 0) {
+ if (package->edge[i]->operator == VER_EQUAL) {
+ strcat(depends, " (= ");
+ }
+ else if (package->edge[i]->operator == VER_LESS) {
+ strcat(depends, " (<< ");
+ }
+ else if (package->edge[i]->operator == VER_LESS_EQUAL) {
+ strcat(depends, " (<= ");
+ }
+ else if (package->edge[i]->operator == VER_MORE) {
+ strcat(depends, " (>> ");
+ }
+ else if (package->edge[i]->operator == VER_MORE_EQUAL) {
+ strcat(depends, " (>= ");
+ } else {
+ strcat(depends, " (");
+ }
+ strcat(depends, name_hashtable[package->edge[i]->version]);
+ strcat(depends, ")");
+ }
}
}
- fclose(f);
- return status;
+ return(depends);
}
-static int status_merge(void *status, package_t *pkgs)
+/* This could do with a cleanup */
+void write_status_file(deb_file_t **deb_file)
{
- FILE *fin, *fout;
- char *line = NULL;
- package_t *pkg = 0, *statpkg = 0;
- package_t locpkg;
+ FILE *old_status_file = xfopen("/var/lib/dpkg/status", "r");
+ FILE *new_status_file = xfopen("/var/lib/dpkg/status.udeb", "w");
+ char *package_name;
+ char *status_from_file;
+ char *control_buffer = NULL;
+ char *tmp_string;
+ char *field;
+ int status_num;
+ int field_length;
+ int field_start = 0;
+ int buffer_length;
+ int write_flag;
+ int i = 0;
- if ((fout = wfopen(new_statusfile, "w")) == NULL) {
- return 0;
- }
- if (getenv(udpkg_quiet) == NULL) {
- printf("(Updating database...)\n");
- }
+ /* Update previously known packages */
+ while ((control_buffer = fgets_str(old_status_file, "\n\n")) != NULL) {
+ tmp_string = strstr(control_buffer, "Package:") + 8;
+ tmp_string += strspn(tmp_string, " \n\t");
+ package_name = xstrndup(tmp_string, strcspn(tmp_string, "\n\0"));
+ write_flag = FALSE;
+
+ tmp_string = strstr(control_buffer, "Status:");
+ if (tmp_string != NULL) {
+ /* Seperate the status value from the control buffer */
+ tmp_string += 7;
+ tmp_string += strspn(tmp_string, " \n\t");
+ status_from_file = xstrndup(tmp_string, strcspn(tmp_string, "\n"));
+ } else {
+ status_from_file = NULL;
+ }
- /*
- * Dont use wfopen here, handle errors ourself
- */
- if ((fin = fopen(statusfile, "r")) != NULL) {
- while (((line = get_line_from_file(fin)) != NULL) && !feof(fin)) {
- chomp(line); /* trim newline */
- /* If we see a package header, find out if it's a package
- * that we have processed. if so, we skip that block for
- * now (write it at the end).
- *
- * we also look at packages in the status cache and update
- * their status fields
- */
- if (strstr(line, "Package: ") == line) {
- for (pkg = pkgs; pkg != 0 && strcmp(line + 9,
- pkg->package) != 0; pkg = pkg->next) ;
-
- locpkg.package = line + 9;
- statpkg = tfind(&locpkg, &status, package_compare);
-
- /* note: statpkg should be non-zero, unless the status
- * file was changed while we are processing (no locking
- * is currently done...
- */
- if (statpkg != 0) {
- statpkg = *(package_t **)statpkg;
+ /* Find this package in the status hashtable */
+ status_num = search_status_hashtable(package_name);
+ if (status_hashtable[status_num] != NULL) {
+ const char *status_from_hashtable = name_hashtable[status_hashtable[status_num]->status];
+ if (strcmp(status_from_file, status_from_hashtable) != 0) {
+ /* New status isnt exactly the same as old status */
+ const int state_status = get_status(status_num, 3);
+ if ((strcmp("installed", name_hashtable[state_status]) == 0) ||
+ (strcmp("unpacked", name_hashtable[state_status]) == 0)) {
+ /* We need to add the control file from the package */
+ i = 0;
+ while(deb_file[i] != NULL) {
+ if (strcmp(package_name, name_hashtable[package_hashtable[deb_file[i]->package]->name]) == 0) {
+ char *last_char;
+ /* Write a status file entry with a modified status */
+ /* remove trailing \n's */
+ while(1) {
+ last_char = last_char_is(deb_file[i]->control_file, '\n');
+ if (last_char) {
+ *last_char = '\0';
+ } else {
+ break;
+ }
+ }
+ fputs(deb_file[i]->control_file, new_status_file);
+ set_status(status_num, "ok", 2);
+ fprintf(new_status_file, "\nStatus: %s\n\n", name_hashtable[status_hashtable[status_num]->status]);
+ write_flag = TRUE;
+ break;
+ }
+ i++;
+ }
+ /* This is temperary, debugging only */
+ if (deb_file[i] == NULL) {
+ error_msg_and_die("ALERT: Couldnt find a control file, your status file may be broken, status may be incorrect for %s", package_name);
+ }
+ }
+ else if (strcmp("not-installed", name_hashtable[state_status]) == 0) {
+ /* Only write the Package, Status, Priority and Section lines */
+ fprintf(new_status_file, "Package: %s\n", package_name);
+ fprintf(new_status_file, "Status: %s\n", status_from_hashtable);
+ buffer_length = strlen(control_buffer);
+ while (field_start < buffer_length) {
+ field = read_package_field(&control_buffer[field_start]);
+ field_length = strlen(field);
+ field_start += (field_length + 1);
+ if (strncmp(field, "Priority:", 9) == 0) {
+ fprintf(new_status_file, "Priority:%s\n", field + 9);
+ }
+ if (strncmp(field, "Section:", 8) == 0) {
+ fprintf(new_status_file, "Section:%s\n", field + 8);
+ }
+ }
+ write_flag = TRUE;
+ fputs("\n", new_status_file);
+ }
+ else if (strcmp("config-files", name_hashtable[state_status]) == 0) {
+ /* only change the status line */
+ buffer_length = strlen(control_buffer);
+ while (field_start < buffer_length) {
+ field = read_package_field(&control_buffer[field_start]);
+ /* Setup start point for next field */
+ field_length = strlen(field);
+ field_start += (field_length + 1);
+ if (strncmp(field, "Status:", 7) == 0) {
+ fprintf(new_status_file, "Status: %s\n", status_from_hashtable);
+ } else {
+ fprintf(new_status_file, "%s\n", field);
+ }
+ free(field);
+ }
+ write_flag = TRUE;
+ fputs("\n", new_status_file);
}
}
- if (pkg != 0) {
- continue;
- }
- if (strstr(line, "Status: ") == line && statpkg != 0) {
- snprintf(line, sizeof(line), "Status: %s %s %s",
- state_words_want[statpkg->state_want - 1],
- state_words_flag[statpkg->state_flag - 1],
- state_words_status[statpkg->state_status - 1]);
+ }
+
+ /* If the package from the status file wasnt handle above, do it now*/
+ if (write_flag == FALSE) {
+ fprintf(new_status_file, "%s\n\n", control_buffer);
+ }
+
+ if (status_from_file != NULL) {
+ free(status_from_file);
+ }
+ free(package_name);
+ free(control_buffer);
+ }
+ /* Write any new packages */
+ for(i = 0; deb_file[i] != NULL; i++) {
+ status_num = search_status_hashtable(name_hashtable[package_hashtable[deb_file[i]->package]->name]);
+ if (strcmp("reinstreq", name_hashtable[get_status(status_num, 2)]) == 0) {
+ char *last_char;
+ /* remove trailing \n's */
+ while(1) {
+ last_char = last_char_is(deb_file[i]->control_file, '\n');
+ if (last_char) {
+ *last_char = '\0';
+ } else {
+ break;
+ }
}
- fprintf(fout, "%s\n", line);
+
+ fputs(deb_file[i]->control_file, new_status_file);
+ set_status(status_num, "ok", 2);
+ fprintf(new_status_file, "\nStatus: %s\n\n", name_hashtable[status_hashtable[status_num]->status]);
}
- fclose(fin);
}
- free(line);
+ fclose(old_status_file);
+ fclose(new_status_file);
- // Print out packages we processed.
- for (pkg = pkgs; pkg != 0; pkg = pkg->next) {
- write_package(fout, pkg);
- }
- fclose(fout);
- /*
- * Its ok if renaming statusfile fails becasue it doesnt exist
- */
- if (rename(statusfile, bak_statusfile) == -1) {
+ /* Create a seperate backfile to dpkg */
+ if (rename("/var/lib/dpkg/status", "/var/lib/dpkg/status.udeb.bak") == -1) {
struct stat stat_buf;
- if (stat(statusfile, &stat_buf) == 0) {
- error_msg("Couldnt create backup status file");
- return(EXIT_FAILURE);
+ if (stat("/var/lib/dpkg/status", &stat_buf) == 0) {
+ error_msg_and_die("Couldnt create backup status file");
}
+ /* Its ok if renaming the status file fails becasue status
+ * file doesnt exist, maybe we are starting from scratch */
error_msg("No status file found, creating new one");
}
- if (rename(new_statusfile, statusfile) == -1) {
- error_msg("Couldnt create status file");
- return(EXIT_FAILURE);
+ if (rename("/var/lib/dpkg/status.udeb", "/var/lib/dpkg/status") == -1) {
+ error_msg_and_die("DANGER: Couldnt create status file, you need to manually repair your status file");
}
- return(EXIT_SUCCESS);
}
-static int is_file(const char *fn)
+int check_deps(deb_file_t **deb_file, int deb_start, int dep_max_count)
{
- struct stat statbuf;
+ int *conflicts = NULL;
+ int conflicts_num = 0;
+ int state_status;
+ int state_flag;
+ int state_want;
+ unsigned int status_package_num;
+ int i = deb_start;
+ int j, k;
+
+ /* Check for conflicts
+ * TODO: TEST if conflicts with other packages to be installed
+ *
+ * Add install packages and the packages they provide
+ * to the list of files to check conflicts for
+ */
- if (stat(fn, &statbuf) < 0) {
- return 0;
+ /* Create array of package numbers to check against
+ * installed package for conflicts*/
+ while (deb_file[i] != NULL) {
+ const unsigned int package_num = deb_file[i]->package;
+ conflicts = xrealloc(conflicts, sizeof(int) * (conflicts_num + 1));
+ conflicts[conflicts_num] = package_num;
+ conflicts_num++;
+ /* add provides to conflicts list */
+ for (j = 0; j < package_hashtable[package_num]->num_of_edges; j++) {
+ if (package_hashtable[package_num]->edge[j]->type == EDGE_PROVIDES) {
+ const int conflicts_package_num = search_package_hashtable(
+ package_hashtable[package_num]->edge[j]->name,
+ package_hashtable[package_num]->edge[j]->version,
+ package_hashtable[package_num]->edge[j]->operator);
+ if (package_hashtable[conflicts_package_num] == NULL) {
+ /* create a new package */
+ common_node_t *new_node = (common_node_t *) xmalloc(sizeof(common_node_t));
+ new_node->name = package_hashtable[package_num]->edge[j]->name;
+ new_node->version = package_hashtable[package_num]->edge[j]->version;
+ new_node->num_of_edges = 0;
+ new_node->edge = NULL;
+ package_hashtable[conflicts_package_num] = new_node;
+ }
+ conflicts = xrealloc(conflicts, sizeof(int) * (conflicts_num + 1));
+ conflicts[conflicts_num] = conflicts_package_num;
+ conflicts_num++;
+ }
+ }
+ i++;
}
- return S_ISREG(statbuf.st_mode);
+
+ /* Check conflicts */
+ for (i = 0; i < conflicts_num; i++) {
+ /* Check for conflicts */
+ for (j = 0; j < STATUS_HASH_PRIME; j++) {
+ if (status_hashtable[j] == NULL) {
+ continue;
+ }
+ state_flag = get_status(j, 2);
+ state_status = get_status(j, 3);
+ if ((state_status != search_name_hashtable("installed"))
+ && (state_flag != search_name_hashtable("want-install"))) {
+ continue;
+ }
+ status_package_num = status_hashtable[j]->package;
+ for (k = 0; k < package_hashtable[status_package_num]->num_of_edges; k++) {
+ const edge_t *package_edge = package_hashtable[status_package_num]->edge[k];
+ if (package_edge->type != EDGE_CONFLICTS) {
+ continue;
+ }
+ if (package_edge->name != package_hashtable[conflicts[i]]->name) {
+ continue;
+ }
+ /* There is a conflict against the package name
+ * check if version conflict as well */
+ if (test_version(package_hashtable[deb_file[i]->package]->version,
+ package_edge->version, package_edge->operator)) {
+ error_msg_and_die("Package %s conflict with %s",
+ name_hashtable[package_hashtable[deb_file[i]->package]->name],
+ name_hashtable[package_hashtable[status_package_num]->name]);
+ }
+ }
+ }
+ }
+
+ /* Check dependendcies */
+ i = 0;
+ while (deb_file[i] != NULL) {
+ const common_node_t *package_node = package_hashtable[deb_file[i]->package];
+ int status_num = 0;
+
+ for (j = 0; j < package_hashtable[deb_file[i]->package]->num_of_edges; j++) {
+ const edge_t *package_edge = package_node->edge[j];
+ const unsigned int package_num = search_package_hashtable(package_edge->name,
+ package_edge->version, package_edge->operator);
+
+ status_num = search_status_hashtable(name_hashtable[package_hashtable[package_num]->name]);
+ state_status = get_status(status_num, 3);
+ state_want = get_status(status_num, 1);
+ switch (package_edge->type) {
+ case(EDGE_PRE_DEPENDS):
+ case(EDGE_OR_PRE_DEPENDS):
+ /* It must be already installed */
+ /* NOTE: This is untested, nothing apropriate in my status file */
+ if ((package_hashtable[package_num] == NULL) || (state_status != search_name_hashtable("installed"))) {
+ error_msg_and_die("Package %s pre-depends on %s, but it is not installed",
+ name_hashtable[package_node->name],
+ name_hashtable[package_edge->name]);
+ }
+ break;
+ case(EDGE_DEPENDS):
+ case(EDGE_OR_DEPENDS):
+ /* It must be already installed, or to be installed */
+ if ((package_hashtable[package_num] == NULL) ||
+ ((state_status != search_name_hashtable("installed")) &&
+ (state_want != search_name_hashtable("want_install")))) {
+ error_msg_and_die("Package %s depends on %s, but it is not installed, or flaged to be installed",
+ name_hashtable[package_node->name],
+ name_hashtable[package_edge->name]);
+ }
+ break;
+ }
+ }
+ i++;
+ }
+ return(TRUE);
}
-static int dpkg_doconfigure(package_t *pkg)
+char **create_list(const char *filename)
{
- int r;
- char postinst[1024];
- char buf[1024];
-
- DPRINTF("Configuring %s\n", pkg->package);
- pkg->state_status = 0;
- snprintf(postinst, sizeof(postinst), "%s%s.postinst", infodir, pkg->package);
+ FILE *list_stream;
+ char **file_list = xmalloc(sizeof(char *));
+ char *line = NULL;
+ char *last_char;
+ int length = 0;
+ int count = 0;
- if (is_file(postinst)) {
- snprintf(buf, sizeof(buf), "%s configure", postinst);
- if ((r = do_system(buf)) != 0) {
- error_msg("postinst exited with status %d\n", r);
- pkg->state_status = state_status_halfconfigured;
- return 1;
+ list_stream = fopen(filename, "r");
+ if (list_stream == NULL) {
+ return(NULL);
+ }
+ while (getline(&line, &length, list_stream) != -1) {
+ file_list = xrealloc(file_list, sizeof(char *) * (length + 1));
+ last_char = last_char_is(line, '\n');
+ if (last_char) {
+ *last_char = '\0';
}
+ file_list[count] = xstrdup(line);
+ free(line);
+ count++;
+ length = 0;
+ }
+ fclose(list_stream);
+ if (count == 0) {
+ return(NULL);
+ } else {
+ file_list[count] = NULL;
+ return(file_list);
}
- pkg->state_status = state_status_installed;
-
- return 0;
}
-static int dpkg_dounpack(package_t *pkg)
+/* maybe i should try and hook this into remove_file.c somehow */
+int remove_file_array(char **remove_names, char **exclude_names)
{
- FILE *out_stream;
- char *info_prefix;
- int status = TRUE;
- int r = 0;
-
- DPRINTF("Unpacking %s\n", pkg->package);
+ struct stat path_stat;
+ int match_flag;
+ int remove_flag = FALSE;
+ int i,j;
- /* extract the data file */
- deb_extract(pkg->filename, stdout, (extract_data_tar_gz | extract_all_to_fs), "/", NULL);
+ if (remove_names == NULL) {
+ return(FALSE);
+ }
+ for (i = 0; remove_names[i] != NULL; i++) {
+ match_flag = FALSE;
+ if (exclude_names != NULL) {
+ for (j = 0; exclude_names[j] != 0; j++) {
+ if (strcmp(remove_names[i], exclude_names[j]) == 0) {
+ match_flag = TRUE;
+ break;
+ }
+ }
+ }
+ if (!match_flag) {
+ if (lstat(remove_names[i], &path_stat) < 0) {
+ continue;
+ }
+ if (S_ISDIR(path_stat.st_mode)) {
+ if (rmdir(remove_names[i]) != -1) {
+ remove_flag = TRUE;
+ }
+ } else {
+ if (unlink(remove_names[i]) != -1) {
+ remove_flag = TRUE;
+ }
+ }
+ }
+ }
+ return(remove_flag);
+}
- /* extract the control files */
- info_prefix = (char *) malloc(strlen(pkg->package) + strlen(infodir) + 2 + 5 + 1);
- sprintf(info_prefix, "%s/%s.", infodir, pkg->package);
- deb_extract(pkg->filename, stdout, (extract_control_tar_gz | extract_all_to_fs), info_prefix, NULL);
+int run_package_script(const char *package_name, const char *script_type)
+{
+ struct stat path_stat;
+ char *script_path;
- /* Create the list file */
- strcat(info_prefix, "list");
- out_stream = wfopen(info_prefix, "w");
- deb_extract(pkg->filename, out_stream, (extract_data_tar_gz | extract_list), NULL, NULL);
- fclose(out_stream);
+ script_path = xmalloc(strlen(package_name) + strlen(script_type) + 21);
+ sprintf(script_path, "/var/lib/dpkg/info/%s.%s", package_name, script_type);
- pkg->state_want = state_want_install;
- pkg->state_flag = state_flag_ok;
-
- if (status == TRUE) {
- pkg->state_status = state_status_unpacked;
+ /* If the file doesnt exist is isnt a fatal */
+ if (lstat(script_path, &path_stat) < 0) {
+ return(EXIT_SUCCESS);
} else {
- pkg->state_status = state_status_halfinstalled;
+ return(system(script_path));
}
-
- return r;
}
-/*
- * Extract and parse the control file from control.tar.gz
- */
-static int dpkg_read_control(package_t *pkg)
+void all_control_list(char **remove_files, const char *package_name)
{
- FILE *pkg_file;
- char *control_buffer = NULL;
+ const char *all_extensions[11] = {"preinst", "postinst", "prerm", "postrm",
+ "list", "md5sums", "shlibs", "conffiles", "config", "templates", NULL };
+ int i;
- if ((pkg_file = wfopen(pkg->filename, "r")) == NULL) {
- return EXIT_FAILURE;
+ /* Create a list of all /var/lib/dpkg/info/<package> files */
+ for(i = 0; i < 10; i++) {
+ remove_files[i] = xmalloc(strlen(package_name) + strlen(all_extensions[i]) + 21);
+ sprintf(remove_files[i], "/var/lib/dpkg/info/%s.%s", package_name, all_extensions[i]);
}
- control_buffer = deb_extract(pkg->filename, stdout, (extract_control_tar_gz | extract_one_to_buffer), NULL, "./control");
- fill_package_struct(pkg, control_buffer);
- return EXIT_SUCCESS;
+ remove_files[10] = NULL;
}
-static int dpkg_unpack(package_t *pkgs, void *status)
+void remove_package(const unsigned int package_num)
{
- int r = 0;
- package_t *pkg;
-
- for (pkg = pkgs; pkg != 0; pkg = pkg->next) {
- dpkg_read_control(pkg);
- if ((r = dpkg_dounpack(pkg)) != 0 ) {
- break;
- }
+ const char *package_name = name_hashtable[package_hashtable[package_num]->name];
+ const unsigned int status_num = search_status_hashtable(package_name);
+ const int package_name_length = strlen(package_name);
+ char **remove_files;
+ char **exclude_files;
+ char list_name[package_name_length + 25];
+ char conffile_name[package_name_length + 30];
+ int return_value;
+
+ /* run prerm script */
+ return_value = run_package_script(package_name, "prem");
+ if (return_value == -1) {
+ error_msg_and_die("script failed, prerm failure");
}
- status_merge(status, pkgs);
- return r;
-}
+ /* Create a list of files to remove, and a seperate list of those to keep */
+ sprintf(list_name, "/var/lib/dpkg/info/%s.list", package_name);
+ remove_files = create_list(list_name);
-static int dpkg_configure(package_t *pkgs, void *status)
-{
- int r = 0;
- void *found;
- package_t *pkg;
+ sprintf(conffile_name, "/var/lib/dpkg/info/%s.conffiles", package_name);
+ exclude_files = create_list(conffile_name);
- for (pkg = pkgs; pkg != 0 && r == 0; pkg = pkg->next) {
- found = tfind(pkg, &status, package_compare);
+ /* Some directories cant be removed straight away, so do multiple passes */
+ while (remove_file_array(remove_files, exclude_files) == TRUE);
- if (found == 0) {
- error_msg("Trying to configure %s, but it is not installed", pkg->package);
- r = 1;
- }
- /* configure the package listed in the status file;
- * not pkg, as we have info only for the latter
- */
- else {
- r = dpkg_doconfigure(*(package_t **)found);
- }
- }
- status_merge(status, 0);
+ /* Create a list of all /var/lib/dpkg/info/<package> files */
+ remove_files = xmalloc(11);
+ all_control_list(remove_files, package_name);
- return r;
+ /* Create a list of files in /var/lib/dpkg/info/<package>.* to keep */
+ exclude_files = xmalloc(sizeof(char*) * 3);
+ exclude_files[0] = xstrdup(conffile_name);
+ exclude_files[1] = xmalloc(package_name_length + 27);
+ sprintf(exclude_files[1], "/var/lib/dpkg/info/%s.postrm", package_name);
+ exclude_files[2] = NULL;
+
+ remove_file_array(remove_files, exclude_files);
+
+ /* rename <package>.conffile to <package>.list */
+ rename(conffile_name, list_name);
+
+ /* Change package status */
+ set_status(status_num, "deinstall", 1);
+ set_status(status_num, "config-files", 3);
}
-static int dpkg_install(package_t *pkgs, void *status)
+void purge_package(const unsigned int package_num)
{
- package_t *p, *ordered = 0;
-
- /* Stage 1: parse all the control information */
- for (p = pkgs; p != 0; p = p->next) {
- dpkg_read_control(p);
+ const char *package_name = name_hashtable[package_hashtable[package_num]->name];
+ const unsigned int status_num = search_status_hashtable(package_name);
+ char **remove_files;
+ char **exclude_files;
+ char list_name[strlen(package_name) + 25];
+
+ /* run prerm script */
+ if (run_package_script(package_name, "prerm") == -1) {
+ error_msg_and_die("script failed, prerm failure");
}
- /* Stage 2: resolve dependencies */
-#ifdef DODEPENDS
- ordered = depends_resolve(pkgs, status);
-#else
- ordered = pkgs;
-#endif
-
- /* Stage 3: install */
- for (p = ordered; p != 0; p = p->next) {
- p->state_want = state_want_install;
+ /* Create a list of files to remove */
+ sprintf(list_name, "/var/lib/dpkg/info/%s.list", package_name);
+ remove_files = create_list(list_name);
- /* for now the flag is always set to ok... this is probably
- * not what we want
- */
- p->state_flag = state_flag_ok;
+ exclude_files = xmalloc(1);
+ exclude_files[0] = NULL;
- DPRINTF("Installing %s\n", p->package);
- if (dpkg_dounpack(p) != 0) {
- perror_msg(p->filename);
- }
+ /* Some directories cant be removed straight away, so do multiple passes */
+ while (remove_file_array(remove_files, exclude_files) == TRUE);
- if (dpkg_doconfigure(p) != 0) {
- perror_msg(p->filename);
- }
+ /* Create a list of all /var/lib/dpkg/info/<package> files */
+ remove_files = xmalloc(11);
+ all_control_list(remove_files, package_name);
+ remove_file_array(remove_files, exclude_files);
+
+ /* run postrm script */
+ if (run_package_script(package_name, "postrm") == -1) {
+ error_msg_and_die("postrm fialure.. set status to what?");
}
+ /* Change package status */
+ set_status(status_num, "purge", 1);
+ set_status(status_num, "not-installed", 3);
+}
+
+void unpack_package(deb_file_t *deb_file)
+{
+ const unsigned int package_name_num = package_hashtable[deb_file->package]->name;
+ const char *package_name = name_hashtable[package_name_num];
+ const unsigned int status_num = search_status_hashtable(package_name);
+ unsigned int status_package_num;
- if (ordered != 0) {
- status_merge(status, pkgs);
+ FILE *out_stream;
+ char *info_prefix;
+
+ /* If existing version, remove it first */
+ if (strcmp(name_hashtable[get_status(status_num, 3)], "installed") == 0) {
+ /* Package is already installed, remove old version first */
+ printf("Preparing to replace %s %s (using %s) ...\n", package_name,
+ name_hashtable[package_hashtable[status_package_num]->version],
+ deb_file->filename);
+ remove_package(status_package_num);
+ } else {
+ printf("Unpacking %s (from %s) ...\n", package_name, deb_file->filename);
}
- return 0;
+ /* Extract control.tar.gz to /var/lib/dpkg/info/<package>.filename */
+ info_prefix = (char *) xmalloc(sizeof(package_name) + 20 + 4 + 1);
+ sprintf(info_prefix, "/var/lib/dpkg/info/%s.", package_name);
+ deb_extract(deb_file->filename, stdout, (extract_quiet | extract_control_tar_gz | extract_all_to_fs), info_prefix, NULL);
+
+ /* Extract data.tar.gz to the root directory */
+ deb_extract(deb_file->filename, stdout, (extract_quiet | extract_data_tar_gz | extract_all_to_fs), "/", NULL);
+
+ /* Create the list file */
+ strcat(info_prefix, "list");
+
+ out_stream = wfopen(info_prefix, "w");
+ deb_extract(deb_file->filename, out_stream, (extract_quiet | extract_data_tar_gz | extract_list), NULL, NULL);
+ fclose(out_stream);
+
+ /* change status */
+ set_status(status_num, "install", 1);
+ set_status(status_num, "unpacked", 3);
}
-/*
- * Not implemented yet
- *
-static int dpkg_remove(package_t *pkgs, void *status)
+void configure_package(deb_file_t *deb_file)
{
- package_t *p;
-
- for (p = pkgs; p != 0; p = p->next)
- {
+ int return_value;
+ int status_num;
+
+ /* Run the preinst prior to extracting */
+ return_value = run_package_script(name_hashtable[package_hashtable[deb_file->package]->name], "postinst");
+ if (return_value == -1) {
+ /* TODO: handle failure gracefully */
+ error_msg_and_die("postrm fialure.. set status to what?");
}
- status_merge(status, 0);
- return 0;
+ /* Change status to reflect success */
+ status_num = search_status_hashtable(name_hashtable[package_hashtable[deb_file->package]->name]);
+ set_status(status_num, "install", 1);
+ set_status(status_num, "installed", 3);
}
-*/
extern int dpkg_main(int argc, char **argv)
{
- const int arg_install = 1;
- const int arg_unpack = 2;
- const int arg_configure = 4;
-
- package_t *p, *packages = NULL;
- void *status = NULL;
- int opt = 0;
- int optflag = 0;
+ deb_file_t **deb_file = NULL;
+ status_node_t *status_node;
+ char opt = 0;
+ int package_num;
+ int dpkg_opt = 0;
+ int deb_count = 0;
+ int state_status;
+ int status_num;
+ int i;
- while ((opt = getopt(argc, argv, "iruc")) != -1) {
+ while ((opt = getopt(argc, argv, "cF:ilPru")) != -1) {
switch (opt) {
+ case 'c':
+ dpkg_opt |= dpkg_opt_configure;
+ dpkg_opt |= dpkg_opt_package_name;
+ break;
+ case 'F': // equivalent to --force in official dpkg
+ if (strcmp(optarg, "depends") == 0) {
+ dpkg_opt |= dpkg_opt_force_ignore_depends;
+ }
case 'i':
- optflag |= arg_install;
+ dpkg_opt |= dpkg_opt_install;
+ dpkg_opt |= dpkg_opt_filename;
break;
- case 'u':
- optflag |= arg_unpack;
+ case 'l':
+ dpkg_opt |= dpkg_opt_list_installed;
+ case 'P':
+ dpkg_opt |= dpkg_opt_purge;
+ dpkg_opt |= dpkg_opt_package_name;
break;
- case 'c':
- optflag |= arg_configure;
+ case 'r':
+ dpkg_opt |= dpkg_opt_remove;
+ dpkg_opt |= dpkg_opt_package_name;
+ break;
+ case 'u': /* Equivalent to --unpack in official dpkg */
+ dpkg_opt |= dpkg_opt_unpack;
+ dpkg_opt |= dpkg_opt_filename;
break;
default:
show_usage();
}
}
+ if ((argc == optind) || (dpkg_opt == 0)) {
+ show_usage();
+ }
+
+ puts("(Reading database ... xxxxx files and directories installed.)");
+ index_status_file("/var/lib/dpkg/status");
+
+ /* Read arguments and store relevant info in structs */
+ deb_file = xmalloc(sizeof(deb_file_t));
while (optind < argc) {
- p = (package_t *) xcalloc(1, sizeof(package_t));
- if (optflag & arg_configure) {
- p->package = xstrdup(argv[optind]);
- } else {
- p->filename = xstrdup(argv[optind]);
+ deb_file[deb_count] = (deb_file_t *) xmalloc(sizeof(deb_file_t));
+ if (dpkg_opt & dpkg_opt_filename) {
+ deb_file[deb_count]->filename = xstrdup(argv[optind]);
+ deb_file[deb_count]->control_file = deb_extract(argv[optind], stdout, (extract_control_tar_gz | extract_one_to_buffer), NULL, "./control");
+ if (deb_file[deb_count]->control_file == NULL) {
+ error_msg_and_die("Couldnt extract control file");
+ }
+ package_num = fill_package_struct(deb_file[deb_count]->control_file);
+
+ if (package_num == -1) {
+ error_msg("Invalid control file in %s", argv[optind]);
+ continue;
+ }
+ deb_file[deb_count]->package = (unsigned int) package_num;
+ /* Add the package to the status hashtable */
+ if ((dpkg_opt & dpkg_opt_unpack) || (dpkg_opt & dpkg_opt_install)) {
+ status_node = (status_node_t *) xmalloc(sizeof(status_node_t));
+ status_node->package = deb_file[deb_count]->package;
+ /* use reinstreq isnt changed to "ok" until the package control info
+ * is written to the status file*/
+ status_node->status = search_name_hashtable("install reinstreq not-installed");
+
+ status_num = search_status_hashtable(name_hashtable[package_hashtable[deb_file[deb_count]->package]->name]);
+ status_hashtable[status_num] = status_node;
+ }
}
- p->next = packages;
- packages = p;
+ else if (dpkg_opt & dpkg_opt_package_name) {
+ deb_file[deb_count]->filename = NULL;
+ deb_file[deb_count]->control_file = NULL;
+ deb_file[deb_count]->package = search_package_hashtable(
+ search_name_hashtable(argv[optind]),
+ search_name_hashtable("ANY"), VER_ANY);
+ if (package_hashtable[deb_file[deb_count]->package] == NULL) {
+ error_msg_and_die("unknown package, %s\n", argv[optind]);
+ }
+ state_status = get_status(search_status_hashtable(name_hashtable[package_hashtable[deb_file[deb_count]->package]->name]), 3);
+ /* check package status is "installed" */
+ if (dpkg_opt & dpkg_opt_remove) {
+ if ((strcmp(name_hashtable[state_status], "not-installed") == 0) ||
+ (strcmp(name_hashtable[state_status], "config-files") == 0)) {
+ error_msg_and_die("%s is already removed.", name_hashtable[package_hashtable[deb_file[deb_count]->package]->name]);
+ }
+ }
+ else if (dpkg_opt & dpkg_opt_purge) {
+ /* if package status is "conf-files" then its ok */
+ if (strcmp(name_hashtable[state_status], "not-installed") == 0) {
+ error_msg_and_die("%s is already purged.", name_hashtable[package_hashtable[deb_file[deb_count]->package]->name]);
+ }
+ }
+ }
+ deb_count++;
optind++;
}
+ deb_file[deb_count] = NULL;
- make_directory((char *)infodir, S_IRWXU, FILEUTILS_RECUR);
+ /* Check that the deb file arguments are installable */
+ /* TODO: check dependencies before removing */
+ if ((dpkg_opt & dpkg_opt_force_ignore_depends) != dpkg_opt_force_ignore_depends) {
+ if (!check_deps(deb_file, 0, deb_count)) {
+ error_msg_and_die("Dependency check fialed");
+ }
+ }
- status = status_read();
+ for (i = 0; i < deb_count; i++) {
+ /* Remove or purge packages */
+ if (dpkg_opt & dpkg_opt_remove) {
+ remove_package(deb_file[i]->package);
+ }
+ else if (dpkg_opt & dpkg_opt_purge) {
+ purge_package(deb_file[i]->package);
+ }
+ else if (dpkg_opt & dpkg_opt_unpack) {
+ unpack_package(deb_file[i]);
+ }
+ else if (dpkg_opt & dpkg_opt_install) {
+ unpack_package(deb_file[i]);
+ configure_package(deb_file[i]);
+ }
+ else if (dpkg_opt & dpkg_opt_configure) {
+ configure_package(deb_file[i]);
+ }
+ }
- if (optflag & arg_install) {
- return dpkg_install(packages, status);
+ write_status_file(deb_file);
+
+ for (i = 0; i < NAME_HASH_PRIME; i++) {
+ if (name_hashtable[i] != NULL) {
+ free(name_hashtable[i]);
+ }
}
- else if (optflag & arg_unpack) {
- return dpkg_unpack(packages, status);
+ for (i = 0; i < PACKAGE_HASH_PRIME; i++) {
+ free_package(package_hashtable[i]);
}
- else if (optflag & arg_configure) {
- return dpkg_configure(packages, status);
+ for (i = 0; i < STATUS_HASH_PRIME; i++) {
+ if (status_hashtable[i] != NULL) {
+ free(status_hashtable[i]);
+ }
}
+
return(EXIT_FAILURE);
}
+
projects / oweals / busybox.git / commitdiff