* - Packages with previously unknown status are inserted at the begining of
* the status file
*
- * Work to be done
- * - (bugs, unknown, please let me know when you find them)
- * - dependency checking is incomplete
- * - provides, replaces, conflicts fields arent considered when installing
+ * Bugs that need to be fixed
+ * - (unknown, please let me know when you find any)
+ *
*/
#include <getopt.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
-#include "../libbb/deb_functs.h"
-#include "libbb.h"
+#include "unarchive.h"
#include "busybox.h"
+/* 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
+ */
+
+/* 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_PACKAGENAME = 32,
- DPKG_OPT_FILENAME = 64,
- DPKG_OPT_LIST_INSTALLED = 128,
- DPKG_OPT_FORCE_IGNORE_DEPENDS = 256,
+ 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
};
-extern unsigned short char_name_hash_prime;
-extern unsigned short char_ver_hash_prime;
-extern unsigned short char_rev_hash_prime;
-extern unsigned short char_filename_hash_prime;
-extern unsigned short char_source_hash_prime;
-extern unsigned short edge_hash_prime;
-extern unsigned short node_hash_prime;
-/* This function lists information on the installed packages. It loops through
- * the status_hashtable to retrieve the info. This results in smaller code than
- * scanning the status file. The resulting list, however, is unsorted.
- */
-/* TODO: check the character flags ive assigned match real dpkg */
-#ifdef BB_FEATURE_DPKG_LIST
-extern void list_packages(void)
+typedef struct deb_file_s {
+ char *control_file;
+ char *filename;
+ unsigned int package:14;
+} deb_file_t;
+
+
+void make_hash(const char *key, unsigned int *start, unsigned int *decrement, const int hash_prime)
{
+ unsigned long int hash_num = key[0];
+ int len = strlen(key);
int i;
- printf(" Name Version\n");
- printf("+++-==============-==============\n");
+ /* 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));
+}
+
+/* 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;
+// char *temp;
+
+ 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 {
+ probe_address -= probe_decrement;
+ if ((int)probe_address < 0) {
+ probe_address += NAME_HASH_PRIME;
+ }
+ }
+ }
+ name_hashtable[probe_address] = xstrdup(key);
+ return(probe_address);
+}
+
+/* this DOESNT add the key to the hashtable
+ * TODO make it consistent with search_name_hashtable
+ */
+unsigned int search_status_hashtable(const char *key)
+{
+ 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);
+}
+
+/* Need to rethink version comparison, maybe the official dpkg has something i can use ? */
+int version_compare_part(const char *version1, const char *version2)
+{
+ 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;
+ int ret;
+
+ if (version1 == NULL) {
+ version1 = xstrdup("");
+ }
+ if (version2 == NULL) {
+ version2 = xstrdup("");
+ }
+ 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) {
+ ret = tmp_int;
+ goto cleanup_version_compare_part;
+ }
+
+ /* 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) {
+ ret = -1;
+ goto cleanup_version_compare_part;
+ }
+ else if (ver_num1 > ver_num2) {
+ ret = 1;
+ goto cleanup_version_compare_part;
+ }
+ }
+ ret = 0;
+cleanup_version_compare_part:
+ return(ret);
+}
+
+/* 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);
+
+ 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);
+}
+
+
+int search_package_hashtable(const unsigned int name, const unsigned int version, const unsigned int operator)
+{
+ 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);
+ }
+ }
+ probe_address -= probe_decrement;
+ if ((int)probe_address < 0) {
+ probe_address += PACKAGE_HASH_PRIME;
+ }
+ }
+ return(probe_address);
+}
+
+/*
+ * Create one new node and one new edge for every dependency.
+ */
+void add_split_dependencies(common_node_t *parent_node, const char *whole_line, unsigned int edge_type)
+{
+ 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);
- /* go through status hash, dereference package hash and finally strings */
- for (i = 0; i < node_hash_prime; i++) {
- node_t *node = get_node_ht(i);
+ /* 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);
+
+ 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) {
- char *name_str = get_name_ht(node->name);
- char *ver_rev;
- char want_flag;
- char status_flag;
+ free(node);
+ }
+ }
+}
+
+unsigned int fill_package_struct(char *control_buffer)
+{
+ common_node_t *new_node = (common_node_t *) xcalloc(1, sizeof(common_node_t));
+
+ char *field_name;
+ char *field_value;
+ int field_start = 0;
+ int num = -1;
+ int buffer_length = strlen(control_buffer);
+
+ new_node->version = search_name_hashtable("unknown");
+ while (field_start < buffer_length) {
+ field_start += read_package_field(&control_buffer[field_start],
+ &field_name, &field_value);
+
+ if (field_name == NULL) {
+ goto fill_package_struct_cleanup; // Oh no, the dreaded goto statement !!
+ }
+
+ if (strcmp(field_name, "Package") == 0) {
+ new_node->name = search_name_hashtable(field_value);
+ }
+ else if (strcmp(field_name, "Version") == 0) {
+ new_node->version = search_name_hashtable(field_value);
+ }
+ else if (strcmp(field_name, "Pre-Depends") == 0) {
+ add_split_dependencies(new_node, field_value, EDGE_PRE_DEPENDS);
+ }
+ else if (strcmp(field_name, "Depends") == 0) {
+ add_split_dependencies(new_node, field_value, EDGE_DEPENDS);
+ }
+ else if (strcmp(field_name, "Replaces") == 0) {
+ add_split_dependencies(new_node, field_value, EDGE_REPLACES);
+ }
+ else if (strcmp(field_name, "Provides") == 0) {
+ add_split_dependencies(new_node, field_value, EDGE_PROVIDES);
+ }
+ else if (strcmp(field_name, "Conflicts") == 0) {
+ add_split_dependencies(new_node, field_value, EDGE_CONFLICTS);
+ }
+ else if (strcmp(field_name, "Suggests") == 0) {
+ add_split_dependencies(new_node, field_value, EDGE_SUGGESTS);
+ }
+ else if (strcmp(field_name, "Recommends") == 0) {
+ add_split_dependencies(new_node, field_value, EDGE_RECOMMENDS);
+ }
+ else if (strcmp(field_name, "Enhances") == 0) {
+ add_split_dependencies(new_node, field_value, EDGE_ENHANCES);
+ }
+fill_package_struct_cleanup:
+ if (field_name) {
+ free(field_name);
+ }
+ if (field_value) {
+ free(field_value);
+ }
+ }
+
+ 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);
+}
- ver_rev = version_revision(node->version, node->revision);
- if (strlen(ver_rev) > 14) {
- ver_rev[14] = '\0';
+/* 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)
+{
+ 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, " ");
+ }
+ 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");
+ }
+
+ 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);
+ free(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 = xfopen(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);
+ }
+ fclose(status_file);
+ return;
+}
- switch (node->state_want) {
- case(STATE_WANT_HOLD):
- want_flag = 'h';
- break;
- case(STATE_WANT_INSTALL):
- want_flag = 'i';
- break;
- case(STATE_WANT_DEINSTALL):
- want_flag = 'r';
- break;
- case(STATE_WANT_PURGE):
- want_flag = 'p';
- break;
- default:
- want_flag = '?';
+
+char *get_depends_field(common_node_t *package, const int depends_type)
+{
+ char *depends = NULL;
+ char *old_sep = (char *)xcalloc(1, 3);
+ char *new_sep = (char *)xcalloc(1, 3);
+ int line_size = 0;
+ int depends_size;
+
+ int i;
+
+ 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)) {
+ }
+
+ 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, ", ");
}
- switch(node->state_status) {
- case(STATE_STATUS_NOTINSTALLED):
- status_flag = 'n';
- break;
- case(STATE_STATUS_UNPACKED):
- status_flag = 'u';
- break;
- case(STATE_STATUS_HALFCONFIGURED):
- status_flag = 'h';
- break;
- case(STATE_STATUS_INSTALLED):
- status_flag = 'i';
+ 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 {
+ strcat(depends, ", ");
+ }
+ }
+
+ 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, ")");
+ }
+ }
+ }
+ return(depends);
+}
+
+void write_buffer_no_status(FILE *new_status_file, const char *control_buffer)
+{
+ char *name;
+ char *value;
+ int start = 0;
+ while (1) {
+ start += read_package_field(&control_buffer[start], &name, &value);
+ if (name == NULL) {
+ break;
+ }
+ if (strcmp(name, "Status") != 0) {
+ fprintf(new_status_file, "%s: %s\n", name, value);
+ }
+ }
+ return;
+}
+
+/* This could do with a cleanup */
+void write_status_file(deb_file_t **deb_file)
+{
+ 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;
+ int status_num;
+ int field_start = 0;
+ int write_flag;
+ int i = 0;
+
+ /* Update previously known packages */
+ while ((control_buffer = fgets_str(old_status_file, "\n\n")) != NULL) {
+ if ((tmp_string = strstr(control_buffer, "Package:")) == NULL) {
+ continue;
+ }
+
+ tmp_string += 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;
+ }
+
+ /* 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) {
+ /* Write a status file entry with a modified status */
+ /* remove trailing \n's */
+ write_buffer_no_status(new_status_file, deb_file[i]->control_file);
+ set_status(status_num, "ok", 2);
+ fprintf(new_status_file, "Status: %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);
+
+ while (1) {
+ char *field_name;
+ char *field_value;
+ field_start += read_package_field(&control_buffer[field_start], &field_name, &field_value);
+ if (field_name == NULL) {
+ break;
+ }
+ if ((strcmp(field_name, "Priority") == 0) ||
+ (strcmp(field_name, "Section") == 0)) {
+ fprintf(new_status_file, "%s: %s\n", field_name, field_value);
+ }
+ }
+ write_flag = TRUE;
+ fputs("\n", new_status_file);
+ }
+ else if (strcmp("config-files", name_hashtable[state_status]) == 0) {
+ /* only change the status line */
+ while (1) {
+ char *field_name;
+ char *field_value;
+ field_start += read_package_field(&control_buffer[field_start], &field_name, &field_value);
+ if (field_name == NULL) {
+ break;
+ }
+ /* Setup start point for next field */
+ if (strcmp(field_name, "Status") == 0) {
+ fprintf(new_status_file, "Status: %s\n", status_from_hashtable);
+ } else {
+ fprintf(new_status_file, "%s: %s\n", field_name, field_value);
+ }
+ }
+ write_flag = TRUE;
+ fputs("\n", new_status_file);
+ }
+ }
+ }
+ /* 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) {
+ write_buffer_no_status(new_status_file, deb_file[i]->control_file);
+ set_status(status_num, "ok", 2);
+ fprintf(new_status_file, "Status: %s\n\n", name_hashtable[status_hashtable[status_num]->status]);
+ }
+ }
+ fclose(old_status_file);
+ fclose(new_status_file);
+
+
+ /* 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("/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("/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");
+ }
+}
+
+int check_deps(deb_file_t **deb_file, int deb_start, int dep_max_count)
+{
+ 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
+ */
+
+ /* 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++;
+ }
+
+ /* 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(STATE_STATUS_HALFINSTALLED):
- status_flag = 'h';
+ 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;
- case(STATE_STATUS_CONFIGFILES):
- status_flag = 'c';
+ }
+ }
+ i++;
+ }
+ free(conflicts);
+ return(TRUE);
+}
+
+char **create_list(const char *filename)
+{
+ FILE *list_stream;
+ char **file_list = xmalloc(sizeof(char *));
+ char *line = NULL;
+ char *last_char;
+ int length = 0;
+ int count = 0;
+
+ /* dont use [xw]fopen here, handle error ourself */
+ list_stream = fopen(filename, "r");
+ if (list_stream == NULL) {
+ *file_list = NULL;
+ return(file_list);
+ }
+ 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);
+ count++;
+ }
+ fclose(list_stream);
+ free(line);
+
+ if (count == 0) {
+ return(NULL);
+ } else {
+ file_list[count] = NULL;
+ return(file_list);
+ }
+}
+
+/* maybe i should try and hook this into remove_file.c somehow */
+int remove_file_array(char **remove_names, char **exclude_names)
+{
+ struct stat path_stat;
+ int match_flag;
+ int remove_flag = FALSE;
+ int i,j;
+
+ 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;
- default:
- status_flag = '?';
+ }
+ }
+ }
+ 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);
+}
- /* print out the line formatted like Debian dpkg */
- if ((status_flag != '?') && (want_flag != '?')) {
-#ifdef BB_FEATURE_DPKG_LIST_SHORT_DESCRIPTIONS
- printf("%c%c %-14s %-14s %s\n", want_flag, status_flag, name_str, ver_rev, node->description_short);
-#else
- printf("%c%c %-14s %-14s\n", want_flag, status_flag, name_str, ver_rev);
-#endif
+int run_package_script(const char *package_name, const char *script_type)
+{
+ struct stat path_stat;
+ char *script_path;
+ int result;
+
+ script_path = xmalloc(strlen(package_name) + strlen(script_type) + 21);
+ sprintf(script_path, "/var/lib/dpkg/info/%s.%s", package_name, script_type);
+
+ /* If the file doesnt exist is isnt a fatal */
+ if (lstat(script_path, &path_stat) < 0) {
+ result = EXIT_SUCCESS;
+ } else {
+ result = system(script_path);
+ }
+ free(script_path);
+ return(result);
+}
+
+void all_control_list(char **remove_files, const char *package_name)
+{
+ const char *all_extensions[11] = {"preinst", "postinst", "prerm", "postrm",
+ "list", "md5sums", "shlibs", "conffiles", "config", "templates", NULL };
+ int i;
+
+ /* 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]);
+ }
+ remove_files[10] = NULL;
+}
+
+
+/* This function lists information on the installed packages. It loops through
+ * the status_hashtable to retrieve the info. This results in smaller code than
+ * scanning the status file. The resulting list, however, is unsorted.
+ */
+void list_packages(void)
+{
+ int i;
+
+ printf(" Name Version\n");
+ printf("+++-==============-==============\n");
+
+ /* go through status hash, dereference package hash and finally strings */
+ for (i=0; i<STATUS_HASH_PRIME+1; i++) {
+
+ if (status_hashtable[i]) {
+ const char *stat_str; /* status string */
+ const char *name_str; /* package name */
+ const char *vers_str; /* version */
+ char s1, s2; /* status abbreviations */
+ int spccnt; /* space count */
+ int j;
+
+ stat_str = name_hashtable[status_hashtable[i]->status];
+ name_str = name_hashtable[package_hashtable[status_hashtable[i]->package]->name];
+ vers_str = name_hashtable[package_hashtable[status_hashtable[i]->package]->version];
+
+ /* get abbreviation for status field 1 */
+ s1 = stat_str[0] == 'i' ? 'i' : 'r';
+
+ /* get abbreviation for status field 2 */
+ for (j=0, spccnt=0; stat_str[j] && spccnt<2; j++) {
+ if (stat_str[j] == ' ') spccnt++;
}
- free(ver_rev);
+ s2 = stat_str[j];
+
+ /* print out the line formatted like Debian dpkg */
+ printf("%c%c %-14s %s\n", s1, s2, name_str, vers_str);
}
}
}
-#endif
+
+void remove_package(const unsigned int package_num)
+{
+ 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;
+
+ printf("Removing %s ...\n", package_name);
+
+ /* run prerm script */
+ return_value = run_package_script(package_name, "prerm");
+ if (return_value == -1) {
+ error_msg_and_die("script failed, prerm failure");
+ }
+
+ /* 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);
+
+ sprintf(conffile_name, "/var/lib/dpkg/info/%s.conffiles", package_name);
+ exclude_files = create_list(conffile_name);
+
+ /* Some directories cant be removed straight away, so do multiple passes */
+ while (remove_file_array(remove_files, exclude_files) == TRUE);
+
+ /* Create a list of all /var/lib/dpkg/info/<package> files */
+ remove_files = xmalloc(11);
+ all_control_list(remove_files, package_name);
+
+ /* 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);
+}
+
+void purge_package(const unsigned int package_num)
+{
+ 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") != 0) {
+ error_msg_and_die("script failed, prerm failure");
+ }
+
+ /* Create a list of files to remove */
+ sprintf(list_name, "/var/lib/dpkg/info/%s.list", package_name);
+ remove_files = create_list(list_name);
+
+ exclude_files = xmalloc(1);
+ exclude_files[0] = NULL;
+
+ /* Some directories cant be removed straight away, so do multiple passes */
+ while (remove_file_array(remove_files, exclude_files) == TRUE);
+
+ /* 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 char *package_name = name_hashtable[package_hashtable[deb_file->package]->name];
+ const unsigned int status_num = search_status_hashtable(package_name);
+ const unsigned int status_package_num = status_hashtable[status_num]->package;
+
+ 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);
+ }
+
+ /* 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 | extract_unconditional), info_prefix, NULL);
+
+ /* Run the preinst prior to extracting */
+ if (run_package_script(package_name, "preinst") != 0) {
+ /* when preinst returns exit code != 0 then quit installation process */
+ error_msg_and_die("subprocess pre-installation script returned error.");
+ }
+
+ /* Extract data.tar.gz to the root directory */
+ deb_extract(deb_file->filename, stdout, (extract_quiet | extract_data_tar_gz | extract_all_to_fs | extract_unconditional), "/", NULL);
+
+ /* Create the list file */
+ strcat(info_prefix, "list");
+ out_stream = xfopen(info_prefix, "w");
+ deb_extract(deb_file->filename, out_stream, (extract_quiet | extract_data_tar_gz | extract_list), "/", NULL);
+ fclose(out_stream);
+
+ /* change status */
+ set_status(status_num, "install", 1);
+ set_status(status_num, "unpacked", 3);
+
+ free(info_prefix);
+}
+
+void configure_package(deb_file_t *deb_file)
+{
+ const char *package_name = name_hashtable[package_hashtable[deb_file->package]->name];
+ const char *package_version = name_hashtable[package_hashtable[deb_file->package]->version];
+ const int status_num = search_status_hashtable(package_name);
+
+ printf("Setting up %s (%s)\n", package_name, package_version);
+
+ /* Run the postinst script */
+ if (run_package_script(package_name, "postinst") != 0) {
+ /* TODO: handle failure gracefully */
+ error_msg_and_die("postrm failure.. set status to what?");
+ }
+ /* Change status to reflect success */
+ set_status(status_num, "install", 1);
+ set_status(status_num, "installed", 3);
+}
extern int dpkg_main(int argc, char **argv)
{
- deb_file_t **deb_file = xcalloc(1, sizeof(deb_file_t *));
+ 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;
- unsigned short state_default_new_want = STATE_WANT_INSTALL;
- unsigned short state_default_new_flag = STATE_FLAG_REINSTREQ;
- unsigned short state_default_new_status = STATE_STATUS_NOTINSTALLED;
-
- while ((opt = getopt(argc, argv,
-#ifdef BB_FEATURE_DPKG_LIST
- "CF:ilPru")) != -1) {
-#else
- "CF:iPru")) != -1) {
-#endif
+
+ while ((opt = getopt(argc, argv, "CF:ilPru")) != -1) {
switch (opt) {
case 'C': // equivalent to --configure in official dpkg
- dpkg_opt |= DPKG_OPT_CONFIGURE | DPKG_OPT_PACKAGENAME;
+ 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;
+ dpkg_opt |= dpkg_opt_force_ignore_depends;
}
case 'i':
- dpkg_opt |= DPKG_OPT_INSTALL | DPKG_OPT_FILENAME;
+ dpkg_opt |= dpkg_opt_install;
+ dpkg_opt |= dpkg_opt_filename;
break;
-#ifdef BB_FEATURE_DPKG_LIST
case 'l':
- dpkg_opt |= DPKG_OPT_LIST_INSTALLED;
+ dpkg_opt |= dpkg_opt_list_installed;
break;
-#endif
case 'P':
- dpkg_opt |= DPKG_OPT_PURGE | DPKG_OPT_PACKAGENAME;
- state_default_new_want = STATE_WANT_PURGE;
+ dpkg_opt |= dpkg_opt_purge;
+ dpkg_opt |= dpkg_opt_package_name;
break;
case 'r':
- dpkg_opt |= DPKG_OPT_REMOVE | DPKG_OPT_PACKAGENAME;
- state_default_new_want = STATE_WANT_DEINSTALL;
+ 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_FILENAME;
+ dpkg_opt |= dpkg_opt_unpack;
+ dpkg_opt |= dpkg_opt_filename;
break;
default:
show_usage();
}
}
-
/* check for non-otion argument if expected */
- if ((dpkg_opt == 0) || ((dpkg_opt & DPKG_OPT_FILENAME) && (dpkg_opt & DPKG_OPT_PACKAGENAME))) {
+ if ((dpkg_opt == 0) || ((argc == optind) && !(dpkg_opt && dpkg_opt_list_installed))) {
show_usage();
}
- deb_initialise_hashtables(1);
+/* puts("(Reading database ... xxxxx files and directories installed.)"); */
index_status_file("/var/lib/dpkg/status");
-#ifdef BB_FEATURE_DPKG_LIST
/* if the list action was given print the installed packages and exit */
- if (dpkg_opt & DPKG_OPT_LIST_INSTALLED) {
+ if (dpkg_opt & dpkg_opt_list_installed) {
list_packages();
+ return(EXIT_SUCCESS);
}
-#endif
-
+
/* Read arguments and store relevant info in structs */
+ deb_file = xmalloc(sizeof(deb_file_t));
while (optind < argc) {
- const char *arg_name = argv[optind];
- unsigned int node_num;
- deb_file_t *tmp;
- node_t *node;
-
- tmp = (deb_file_t *) xcalloc(sizeof(deb_file_t), 1);
-
- if (dpkg_opt & DPKG_OPT_FILENAME) {
- tmp->filename = xstrdup(arg_name);
- /* Extract the control file */
- tmp->control_file = deb_extract(arg_name, stdout, (extract_control_tar_gz | extract_one_to_buffer), NULL, "./control");
- if (tmp->control_file == NULL) {
- error_msg("Couldnt extract control file from, ignoring package %s", arg_name);
- optind++;
- free(tmp->filename);
- free(tmp);
- continue;
+ 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");
}
- node = parse_package_metadata(tmp->control_file);
+ package_num = fill_package_struct(deb_file[deb_count]->control_file);
- if (node == NULL) {
- error_msg_and_die("node was null\n");
- } else {
- node_num = search_node_ht(node, CMP_ANY);
- node->state_want = state_default_new_want;
- node->state_flag = state_default_new_flag;
- node->state_status = state_default_new_status;
+ 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;
- if (get_node_ht(node_num) == NULL) {
- printf("Selecting previously deselected package %s\n", get_name_ht(node->name));
+ /* Try and find a currently installed version of this package */
+ status_num = search_status_hashtable(name_hashtable[package_hashtable[deb_file[deb_count]->package]->name]);
+ /* If no previous entry was found initialise a new entry */
+ if ((status_hashtable[status_num] == NULL) ||
+ (status_hashtable[status_num]->status == 0)) {
+ /* 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_hashtable[status_num] = status_node;
+ } else {
+ status_hashtable[status_num]->status = search_name_hashtable("install reinstreq installed");
}
- add_node(node, node_num);
}
- } else {
- /* It must be a package name */
- node = initialise_node(arg_name);
- node_num = search_node_ht(node, CMP_ANY);
- free_node(node);
-
- node = get_node_ht(node_num);
- if (node == NULL) {
- error_msg_and_die("Package %s is uninstalled or unknown\n", arg_name);
+ }
+ 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("Package %s is uninstalled or unknown\n", argv[optind]);
}
-
- node->state_want = state_default_new_want;
+ 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 ((node->state_status == STATE_STATUS_NOTINSTALLED) ||
- (node->state_status == STATE_STATUS_CONFIGFILES)) {
- error_msg_and_die("%s is already removed.", arg_name);
+ 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 (node->state_status == STATE_STATUS_NOTINSTALLED) {
- error_msg_and_die("%s is already purged.", arg_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]);
}
}
}
-
- tmp->node = node_num;
- deb_file = realloc(deb_file, sizeof(deb_file_t) * (deb_count + 1));
- deb_file[deb_count] = tmp;
-
deb_count++;
- deb_file[deb_count] = NULL;
-
optind++;
}
+ deb_file[deb_count] = NULL;
-#if 0
/* 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) {
- /* */
- for (i = 0; i < deb_count; i++) {
- /* add filename to list */
+ if (!check_deps(deb_file, 0, deb_count)) {
+ error_msg_and_die("Dependency check failed");
}
-
- /* Sort packages into groups and add dependencies */
- find_deps(package_name);
-
- /* Check all packages in groups and sub groups are installed */
}
-#endif
+
for (i = 0; i < deb_count; i++) {
/* Remove or purge packages */
- if (dpkg_opt & DPKG_OPT_REMOVE) {
- remove_package(deb_file[i]->node);
+ if (dpkg_opt & dpkg_opt_remove) {
+ remove_package(deb_file[i]->package);
}
- else if (dpkg_opt & DPKG_OPT_PURGE) {
- purge_package(deb_file[i]->node);
+ else if (dpkg_opt & dpkg_opt_purge) {
+ purge_package(deb_file[i]->package);
}
- else if (dpkg_opt & DPKG_OPT_UNPACK) {
+ else if (dpkg_opt & dpkg_opt_unpack) {
unpack_package(deb_file[i]);
}
- else if (dpkg_opt & DPKG_OPT_INSTALL) {
+ else if (dpkg_opt & dpkg_opt_install) {
unpack_package(deb_file[i]);
configure_package(deb_file[i]);
}
- else if (dpkg_opt & DPKG_OPT_CONFIGURE) {
+ else if (dpkg_opt & dpkg_opt_configure) {
configure_package(deb_file[i]);
}
}
write_status_file(deb_file);
- if (deb_file != NULL) {
- for (i = 0; i < deb_count; i++) {
- free(deb_file[i]->control_file);
- free(deb_file[i]->filename);
- free(deb_file[i]);
+ for (i = 0; i < deb_count; i++) {
+ free(deb_file[i]->control_file);
+ free(deb_file[i]->filename);
+ free(deb_file[i]);
+ }
+ free(deb_file);
+
+ for (i = 0; i < NAME_HASH_PRIME; i++) {
+ if (name_hashtable[i] != NULL) {
+ free(name_hashtable[i]);
+ }
+ }
+
+ for (i = 0; i < PACKAGE_HASH_PRIME; i++) {
+ free_package(package_hashtable[i]);
+ }
+
+ for (i = 0; i < STATUS_HASH_PRIME; i++) {
+ if (status_hashtable[i] != NULL) {
+ free(status_hashtable[i]);
}
- free(deb_file);
}
- free_hashtables();
return(EXIT_SUCCESS);
}
projects / oweals / busybox.git / commitdiff