/*
* Mini dpkg implementation for busybox.
- * This is not meant as a replacemnt for dpkg
+ * This is not meant as a replacement for dpkg
*
* Written By Glenn McGrath with the help of others
* 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
*/
/*
- * Known difference between busybox dpkg and the official dpkg that i dont
+ * Known difference between busybox dpkg and the official dpkg that i don't
* 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)
* int's and chaos is assured, 16381 is the max prime for 14 bit field
*/
-/* NAME_HASH_PRIME, Stores package names and versions,
+/* 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];
+static char *name_hashtable[NAME_HASH_PRIME + 1];
/* PACKAGE_HASH_PRIME, Maximum number of unique packages,
* It must not be smaller than STATUS_HASH_PRIME,
unsigned int num_of_edges:14;
edge_t **edge;
} common_node_t;
-common_node_t *package_hashtable[PACKAGE_HASH_PRIME + 1];
+static 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 */
+ * likely to be installed at any one time, so there is a bit of leeway 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];
+static status_node_t *status_hashtable[STATUS_HASH_PRIME + 1];
-/* Even numbers are for 'extras', like ored dependecies or null */
+/* Even numbers are for 'extras', like ored dependencies or null */
enum edge_type_e {
EDGE_NULL = 0,
EDGE_PRE_DEPENDS = 1,
} deb_file_t;
-void make_hash(const char *key, unsigned int *start, unsigned int *decrement, const int hash_prime)
+static 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);
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
+ * to be shifted is 8, don't want to shift data to where it has
* no effect*/
- hash_num += ((key[i] + key[i-1]) << ((key[i] * i) % 24));
+ 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)
+static int search_name_hashtable(const char *key)
{
unsigned int probe_address = 0;
unsigned int probe_decrement = 0;
/* this DOESNT add the key to the hashtable
* TODO make it consistent with search_name_hashtable
*/
-unsigned int search_status_hashtable(const char *key)
+static unsigned int search_status_hashtable(const char *key)
{
unsigned int probe_address = 0;
unsigned int probe_decrement = 0;
}
/* Need to rethink version comparison, maybe the official dpkg has something i can use ? */
-int version_compare_part(const char *version1, const char *version2)
+static int version_compare_part(const char *version1, const char *version2)
{
int upstream_len1 = 0;
int upstream_len2 = 0;
* if ver1 = ver2 return 0,
* if ver1 > ver2 return 1,
*/
-int version_compare(const unsigned int ver1, const unsigned int ver2)
+static int version_compare(const unsigned int ver1, const unsigned int ver2)
{
char *ch_ver1 = name_hashtable[ver1];
char *ch_ver2 = name_hashtable[ver2];
return(version_compare_part(deb_ver1, deb_ver2));
}
-int test_version(const unsigned int version1, const unsigned int version2, const unsigned int operator)
+static 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) {
}
-int search_package_hashtable(const unsigned int name, const unsigned int version, const unsigned int operator)
+static 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;
return(probe_address);
}
+/*
+ * This function searches through the entire package_hashtable looking
+ * for a package which provides "needle". It returns the index into
+ * the package_hashtable for the providing package.
+ *
+ * needle is the index into name_hashtable of the package we are
+ * looking for.
+ *
+ * start_at is the index in the package_hashtable to start looking
+ * at. If start_at is -1 then start at the beginning. This is to allow
+ * for repeated searches since more than one package might provide
+ * needle.
+ *
+ * FIXME: I don't think this is very efficient, but I thought I'd keep
+ * it simple for now until it proves to be a problem.
+ */
+static int search_for_provides(int needle, int start_at) {
+ int i, j;
+ common_node_t *p;
+ for (i = start_at + 1; i < PACKAGE_HASH_PRIME; i++) {
+ p = package_hashtable[i];
+ if ( p == NULL ) continue;
+ for(j = 0; j < p->num_of_edges; j++)
+ if ( p->edge[j]->type == EDGE_PROVIDES && p->edge[j]->name == needle )
+ return i;
+ }
+ return -1;
+}
+
+/*
+ * Add an edge to a node
+ */
+static void add_edge_to_node(common_node_t *node, edge_t *edge)
+{
+ node->num_of_edges++;
+ node->edge = xrealloc(node->edge, sizeof(edge_t) * (node->num_of_edges + 1));
+ node->edge[node->num_of_edges - 1] = edge;
+}
+
/*
* Create one new node and one new edge for every dependency.
+ *
+ * Dependencies which contain multiple alternatives are represented as
+ * an EDGE_OR_PRE_DEPENDS or EDGE_OR_DEPENDS node, followed by a
+ * number of EDGE_PRE_DEPENDS or EDGE_DEPENDS nodes. The name field of
+ * the OR edge contains the full dependency string while the version
+ * field contains the number of EDGE nodes which follow as part of
+ * this alternative.
*/
-void add_split_dependencies(common_node_t *parent_node, const char *whole_line, unsigned int edge_type)
+static void add_split_dependencies(common_node_t *parent_node, const char *whole_line, unsigned int edge_type)
{
char *line = bb_xstrdup(whole_line);
char *line2;
char *field2;
char *version;
edge_t *edge;
+ edge_t *or_edge;
int offset_ch;
- int type;
field = strtok_r(line, ",", &line_ptr1);
do {
+ /* skip leading spaces */
+ field += strspn(field, " ");
line2 = bb_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;
+ if ( (edge_type == EDGE_DEPENDS || edge_type == EDGE_PRE_DEPENDS) &&
+ (strcmp(field, field2) != 0)) {
+ or_edge = (edge_t *)xmalloc(sizeof(edge_t));
+ or_edge->type = edge_type + 1;
} else {
- type = edge_type;
+ or_edge = NULL;
+ }
+
+ if ( or_edge ) {
+ or_edge->name = search_name_hashtable(field);
+ or_edge->version = 0; // tracks the number of altenatives
+
+ add_edge_to_node(parent_node, or_edge);
}
do {
edge = (edge_t *) xmalloc(sizeof(edge_t));
- edge->type = type;
+ edge->type = edge_type;
/* Skip any extra leading spaces */
field2 += strspn(field2, " ");
/* Skip leading ' ' or '(' */
version += strspn(field2, " ");
version += strspn(version, "(");
- /* Calculate length of any operator charactors */
+ /* Calculate length of any operator characters */
offset_ch = strspn(version, "<=>");
/* Determine operator */
if (offset_ch > 0) {
/* 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;
+
+ if ( or_edge )
+ or_edge->version++;
+
+ add_edge_to_node(parent_node, edge);
} while ((field2 = strtok_r(NULL, "|", &line_ptr2)) != NULL);
free(line2);
} while ((field = strtok_r(NULL, ",", &line_ptr1)) != NULL);
return;
}
-void free_package(common_node_t *node)
+static void free_package(common_node_t *node)
{
unsigned short i;
if (node) {
}
}
-unsigned int fill_package_struct(char *control_buffer)
+static unsigned int fill_package_struct(char *control_buffer)
{
+ static const char *const field_names[] = { "Package", "Version",
+ "Pre-Depends", "Depends","Replaces", "Provides",
+ "Conflicts", "Suggests", "Recommends", "Enhances", 0
+ };
+
common_node_t *new_node = (common_node_t *) xcalloc(1, sizeof(common_node_t));
- const char *field_names[] = { "Package", "Version", "Pre-Depends", "Depends",
- "Replaces", "Provides", "Conflicts", "Suggests", "Recommends", "Enhances", 0};
char *field_name;
char *field_value;
int field_start = 0;
goto fill_package_struct_cleanup; /* Oh no, the dreaded goto statement ! */
}
- field_num = compare_string_array(field_names, field_name);
+ field_num = compare_string_array(field_names, field_name);
switch(field_num) {
case 0: /* Package */
new_node->name = search_name_hashtable(field_value);
}
/* 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)
+static 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;
for (i = 1; i < num; i++) {
/* skip past a word */
status_string += strcspn(status_string, " ");
- /* skip past the seperating spaces */
+ /* skip past the separating spaces */
status_string += strspn(status_string, " ");
}
len = strcspn(status_string, " \n\0");
return(state_sub_num);
}
-void set_status(const unsigned int status_node_num, const char *new_value, const int position)
+static 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);
return;
}
-void index_status_file(const char *filename)
+static const char *describe_status(int status_num) {
+ int status_want, status_state ;
+ if ( status_hashtable[status_num] == NULL || status_hashtable[status_num]->status == 0 )
+ return "is not installed or flagged to be installed\n";
+
+ status_want = get_status(status_num, 1);
+ status_state = get_status(status_num, 3);
+
+ if ( status_state == search_name_hashtable("installed") ) {
+ if ( status_want == search_name_hashtable("install") )
+ return "is installed";
+ if ( status_want == search_name_hashtable("deinstall") )
+ return "is marked to be removed";
+ if ( status_want == search_name_hashtable("purge") )
+ return "is marked to be purged";
+ }
+ if ( status_want == search_name_hashtable("unknown") )
+ return "is in an indeterminate state";
+ if ( status_want == search_name_hashtable("install") )
+ return "is marked to be installed";
+
+ return "is not installed or flagged to be installed";
+}
+
+
+static void index_status_file(const char *filename)
{
FILE *status_file;
char *control_buffer;
return;
}
-
+#if 0 /* this code is no longer used */
char *get_depends_field(common_node_t *package, const int depends_type)
{
char *depends = NULL;
}
return(depends);
}
+#endif
-void write_buffer_no_status(FILE *new_status_file, const char *control_buffer)
+static void write_buffer_no_status(FILE *new_status_file, const char *control_buffer)
{
char *name;
char *value;
}
/* This could do with a cleanup */
-void write_status_file(deb_file_t **deb_file)
+static void write_status_file(deb_file_t **deb_file)
{
FILE *old_status_file = bb_xfopen("/var/lib/dpkg/status", "r");
FILE *new_status_file = bb_xfopen("/var/lib/dpkg/status.udeb", "w");
}
tmp_string += 8;
- tmp_string += strspn(tmp_string, " \n\t");
+ tmp_string += strspn(tmp_string, " \n\t");
package_name = bb_xstrndup(tmp_string, strcspn(tmp_string, "\n\0"));
write_flag = FALSE;
tmp_string = strstr(control_buffer, "Status:");
fclose(new_status_file);
- /* Create a seperate backfile to dpkg */
+ /* Create a separate backfile to dpkg */
if (rename("/var/lib/dpkg/status", "/var/lib/dpkg/status.udeb.bak") == -1) {
- struct stat stat_buf;
+ struct stat stat_buf;
if (stat("/var/lib/dpkg/status", &stat_buf) == 0) {
bb_error_msg_and_die("Couldnt create backup status file");
}
- /* Its ok if renaming the status file fails becasue status
+ /* Its ok if renaming the status file fails because status
* file doesnt exist, maybe we are starting from scratch */
bb_error_msg("No status file found, creating new one");
}
}
}
-int check_deps(deb_file_t **deb_file, int deb_start, int dep_max_count)
+/* This function returns TRUE if the given package can satisfy a
+ * dependency of type depend_type.
+ *
+ * A pre-depends is satisfied only if a package is already installed,
+ * which a regular depends can be satisfied by a package which we want
+ * to install.
+ */
+static int package_satisfies_dependency(int package, int depend_type)
+{
+ int status_num = search_status_hashtable(name_hashtable[package_hashtable[package]->name]);
+
+ /* status could be unknown if package is a pure virtual
+ * provides which cannot satisfy any dependency by itself.
+ */
+ if ( status_hashtable[status_num] == NULL )
+ return 0;
+
+ switch (depend_type) {
+ case EDGE_PRE_DEPENDS: return get_status(status_num, 3) == search_name_hashtable("installed");
+ case EDGE_DEPENDS: return get_status(status_num, 1) == search_name_hashtable("install");
+ }
+ return 0;
+}
+
+static 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;
int i = deb_start;
int j;
for (j = 0; j < package_node->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);
if (package_edge->type == EDGE_CONFLICTS) {
+ const unsigned int package_num =
+ search_package_hashtable(package_edge->name,
+ package_edge->version,
+ package_edge->operator);
int result = 0;
if (package_hashtable[package_num] != NULL) {
status_num = search_status_hashtable(name_hashtable[package_hashtable[package_num]->name]);
- state_status = get_status(status_num, 3);
- state_flag = get_status(status_num, 1);
-
- result = (state_status == search_name_hashtable("installed")) ||
- (state_flag == search_name_hashtable("want-install"));
- if (result) {
+ if (get_status(status_num, 1) == search_name_hashtable("install")) {
result = test_version(package_hashtable[deb_file[i]->package]->version,
package_edge->version, package_edge->operator);
}
}
}
i++;
- }
+ }
/* Check dependendcies */
- i = 0;
- while (deb_file[i] != NULL) {
- const common_node_t *package_node = package_hashtable[deb_file[i]->package];
+ for (i = 0; i < PACKAGE_HASH_PRIME; i++) {
int status_num = 0;
+ int number_of_alternatives = 0;
+ const edge_t * root_of_alternatives = NULL;
+ const common_node_t *package_node = package_hashtable[i];
- status_num = search_status_hashtable(name_hashtable[package_node->name]);
- state_status = get_status(status_num, 3);
- state_want = get_status(status_num, 1);
+ /* If the package node does not exist then this
+ * package is a virtual one. In which case there are
+ * no dependencies to check.
+ */
+ if ( package_node == NULL ) continue;
- if (state_status == search_name_hashtable("installed")) {
- i++;
+ status_num = search_status_hashtable(name_hashtable[package_node->name]);
+
+ /* If there is no status then this package is a
+ * virtual one provided by something else. In which
+ * case there are no dependencies to check.
+ */
+ if ( status_hashtable[status_num] == NULL ) continue;
+
+ /* If we don't want this package installed then we may
+ * as well ignore it's dependencies.
+ */
+ if (get_status(status_num, 1) != search_name_hashtable("install")) {
continue;
}
- for (j = 0; j < package_hashtable[deb_file[i]->package]->num_of_edges; j++) {
+#if 0
+ /* This might be needed so we don't complain about
+ * things which are broken but unrelated to the
+ * packages that are currently being installed
+ */
+ if (state_status == search_name_hashtable("installed"))
+ continue;
+#endif
+
+ /* This code is tested only for EDGE_DEPENDS, since I
+ * have no suitable pre-depends available. There is no
+ * reason that it shouldn't work though :-)
+ */
+ for (j = 0; j < package_node->num_of_edges; j++) {
const edge_t *package_edge = package_node->edge[j];
unsigned int package_num;
+ if ( package_edge->type == EDGE_OR_PRE_DEPENDS ||
+ package_edge->type == EDGE_OR_DEPENDS ) { /* start an EDGE_OR_ list */
+ number_of_alternatives = package_edge->version;
+ root_of_alternatives = package_edge;
+ continue;
+ } else if ( number_of_alternatives == 0 ) { /* not in the middle of an EDGE_OR_ list */
+ number_of_alternatives = 1;
+ root_of_alternatives = NULL;
+ }
+
package_num = search_package_hashtable(package_edge->name, package_edge->version, package_edge->operator);
- switch (package_edge->type) {
- case(EDGE_PRE_DEPENDS):
- case(EDGE_OR_PRE_DEPENDS): {
- int result=1;
- /* It must be already installed */
- /* NOTE: This is untested, nothing apropriate in my status file */
- if (package_hashtable[package_num] != NULL) {
- 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);
- result = (state_status != search_name_hashtable("installed"));
- }
+ if (package_edge->type == EDGE_PRE_DEPENDS ||
+ package_edge->type == EDGE_DEPENDS ) {
+ int result=1;
+ status_num = 0;
+
+ /* If we are inside an alternative then check
+ * this edge is the right type.
+ *
+ * EDGE_DEPENDS == OR_DEPENDS -1
+ * EDGE_PRE_DEPENDS == OR_PRE_DEPENDS -1
+ */
+ if ( root_of_alternatives && package_edge->type != root_of_alternatives->type - 1)
+ bb_error_msg_and_die("Fatal error. Package dependencies corrupt: %d != %d - 1 \n",
+ package_edge->type, root_of_alternatives->type);
+
+ if (package_hashtable[package_num] != NULL)
+ result = !package_satisfies_dependency(package_num, package_edge->type);
+
+ if (result) { /* check for other package which provide what we are looking for */
+ int provider = -1;
+
+ while ( (provider = search_for_provides(package_edge->name, provider) ) > -1 ) {
+ if ( package_hashtable[provider] == NULL ) {
+ printf("Have a provider but no package information for it\n");
+ continue;
+ }
+ result = !package_satisfies_dependency(provider, package_edge->type);
- if (result) {
- bb_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]);
+ if ( result == 0 )
+ break;
}
- break;
}
- case(EDGE_DEPENDS):
- case(EDGE_OR_DEPENDS): {
- int result=1;
- if (package_hashtable[package_num] != NULL) {
- 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);
- result=(state_status != search_name_hashtable("installed")) && (state_want != search_name_hashtable("want-install"));
- }
- /* It must be already installed, or to be installed */
- if (result) {
- bb_error_msg_and_die("Package %s depends on %s, but it is not installed, or flaged to be installed",
+
+ /* It must be already installed, or to be installed */
+ number_of_alternatives--;
+ if (result && number_of_alternatives == 0) {
+ if ( root_of_alternatives )
+ bb_error_msg_and_die(
+ "Package %s %sdepends on %s, "
+ "which cannot be satisfied",
name_hashtable[package_node->name],
- name_hashtable[package_edge->name]);
- }
- break;
+ package_edge->type == EDGE_PRE_DEPENDS ? "pre-" : "",
+ name_hashtable[root_of_alternatives->name]);
+ else
+ bb_error_msg_and_die(
+ "Package %s %sdepends on %s, which %s\n",
+ name_hashtable[package_node->name],
+ package_edge->type == EDGE_PRE_DEPENDS ? "pre-" : "",
+ name_hashtable[package_edge->name],
+ describe_status(status_num));
+ } else if ( result == 0 && number_of_alternatives ) {
+ /* we've found a package which
+ * satisfies the dependency,
+ * so skip over the rest of
+ * the alternatives.
+ */
+ j += number_of_alternatives;
+ number_of_alternatives = 0;
}
}
}
- i++;
}
free(conflicts);
return(TRUE);
}
-char **create_list(const char *filename)
+static char **create_list(const char *filename)
{
FILE *list_stream;
char **file_list = NULL;
char *line = NULL;
int count = 0;
- /* dont use [xw]fopen here, handle error ourself */
+ /* don't use [xw]fopen here, handle error ourself */
list_stream = fopen(filename, "r");
if (list_stream == NULL) {
return(NULL);
}
/* maybe i should try and hook this into remove_file.c somehow */
-int remove_file_array(char **remove_names, char **exclude_names)
+static int remove_file_array(char **remove_names, char **exclude_names)
{
struct stat path_stat;
int match_flag;
return(remove_flag);
}
-int run_package_script(const char *package_name, const char *script_type)
+static int run_package_script(const char *package_name, const char *script_type)
{
struct stat path_stat;
char *script_path;
return(result);
}
-char **all_control_list(const char *package_name)
+static const char *all_control_files[] = {"preinst", "postinst", "prerm", "postrm",
+ "list", "md5sums", "shlibs", "conffiles", "config", "templates", NULL };
+
+static char **all_control_list(const char *package_name)
{
- const char *extensions[11] = {"preinst", "postinst", "prerm", "postrm",
- "list", "md5sums", "shlibs", "conffiles", "config", "templates", NULL };
unsigned short i = 0;
char **remove_files;
/* Create a list of all /var/lib/dpkg/info/<package> files */
- remove_files = malloc(sizeof(char *) * 11);
- while (extensions[i]) {
- remove_files[i] = xmalloc(strlen(package_name) + strlen(extensions[i]) + 21);
- sprintf(remove_files[i], "/var/lib/dpkg/info/%s.%s", package_name, extensions[i]);
+ remove_files = xmalloc(sizeof(all_control_files));
+ while (all_control_files[i]) {
+ remove_files[i] = xmalloc(strlen(package_name) + strlen(all_control_files[i]) + 21);
+ sprintf(remove_files[i], "/var/lib/dpkg/info/%s.%s", package_name, all_control_files[i]);
i++;
}
- remove_files[10] = NULL;
+ remove_files[sizeof(all_control_files)/sizeof(char*) - 1] = NULL;
return(remove_files);
}
-void free_array(char **array)
+static void free_array(char **array)
{
-
+
if (array) {
unsigned short i = 0;
while (array[i]) {
/* 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.
+ * scanning the status file. The resulting list, however, is unsorted.
*/
-void list_packages(void)
+static void list_packages(void)
{
- int i;
+ 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++) {
const char *name_str; /* package name */
const char *vers_str; /* version */
char s1, s2; /* status abbreviations */
- int spccnt; /* space count */
+ 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++;
}
s2 = stat_str[j];
-
+
/* print out the line formatted like Debian dpkg */
printf("%c%c %-14s %s\n", s1, s2, name_str, vers_str);
}
}
}
-void remove_package(const unsigned int package_num)
+static void remove_package(const unsigned int package_num, int noisy)
{
const char *package_name = name_hashtable[package_hashtable[package_num]->name];
+ const char *package_version = name_hashtable[package_hashtable[package_num]->version];
const unsigned int status_num = search_status_hashtable(package_name);
const int package_name_length = strlen(package_name);
char **remove_files;
char conffile_name[package_name_length + 30];
int return_value;
- printf("Removing %s ...\n", package_name);
+ if ( noisy )
+ printf("Removing %s (%s) ...\n", package_name, package_version);
/* run prerm script */
return_value = run_package_script(package_name, "prerm");
bb_error_msg_and_die("script failed, prerm failure");
}
- /* Create a list of files to remove, and a seperate list of those to keep */
+ /* Create a list of files to remove, and a separate list of those to keep */
sprintf(list_name, "/var/lib/dpkg/info/%s.list", package_name);
remove_files = create_list(list_name);
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)
+static void purge_package(const unsigned int package_num)
{
const char *package_name = name_hashtable[package_hashtable[package_num]->name];
+ const char *package_version = name_hashtable[package_hashtable[package_num]->version];
const unsigned int status_num = search_status_hashtable(package_name);
char **remove_files;
char **exclude_files;
char list_name[strlen(package_name) + 25];
+ printf("Purging %s (%s) ...\n", package_name, package_version);
+
/* run prerm script */
if (run_package_script(package_name, "prerm") != 0) {
bb_error_msg_and_die("script failed, prerm failure");
}
/* Change package status */
- set_status(status_num, "purge", 1);
set_status(status_num, "not-installed", 3);
}
{
archive_handle_t *ar_handle;
- /* Setup an ar archive handle that refers to the gzip sub archive */
+ /* Setup an ar archive handle that refers to the gzip sub archive */
ar_handle = init_handle();
ar_handle->filter = filter_accept_list_reassign;
ar_handle->src_fd = bb_xopen(filename, O_RDONLY);
- return(ar_handle);
+ return(ar_handle);
}
static void init_archive_deb_control(archive_handle_t *ar_handle)
/* Setup the tar archive handle */
tar_handle = init_handle();
- tar_handle->filter = filter_accept_list;
tar_handle->src_fd = ar_handle->src_fd;
- /* We dont care about data.tar.* or debian-binary, just control.tar.* */
+ /* We don't care about data.tar.* or debian-binary, just control.tar.* */
#ifdef CONFIG_FEATURE_DEB_TAR_GZ
ar_handle->accept = llist_add_to(NULL, "control.tar.gz");
#endif
/* Assign the tar handle as a subarchive of the ar handle */
ar_handle->sub_archive = tar_handle;
- return;
+ return;
}
static void init_archive_deb_data(archive_handle_t *ar_handle)
/* Setup the tar archive handle */
tar_handle = init_handle();
- tar_handle->filter = filter_accept_all;
tar_handle->src_fd = ar_handle->src_fd;
- /* We dont care about data.tar.* or debian-binary, just control.tar.* */
+ /* We don't care about control.tar.* or debian-binary, just data.tar.* */
#ifdef CONFIG_FEATURE_DEB_TAR_GZ
- tar_handle->accept = llist_add_to(NULL, "data.tar.gz");
+ ar_handle->accept = llist_add_to(NULL, "data.tar.gz");
#endif
#ifdef CONFIG_FEATURE_DEB_TAR_BZ2
- tar_handle->accept = llist_add_to(ar_handle->accept, "data.tar.bz2");
+ ar_handle->accept = llist_add_to(ar_handle->accept, "data.tar.bz2");
#endif
/* Assign the tar handle as a subarchive of the ar handle */
ar_handle->sub_archive = tar_handle;
- return;
+ return;
}
-static char *deb_extract_control_file_to_buffer(archive_handle_t *ar_handle, llist_t *accept)
+static char *deb_extract_control_file_to_buffer(archive_handle_t *ar_handle, llist_t *myaccept)
{
ar_handle->sub_archive->action_data = data_extract_to_buffer;
- ar_handle->sub_archive->accept = accept;
+ ar_handle->sub_archive->accept = myaccept;
+ ar_handle->sub_archive->filter = filter_accept_list;
unpack_ar_archive(ar_handle);
close(ar_handle->src_fd);
char *info_prefix;
archive_handle_t *archive_handle;
FILE *out_stream;
+ llist_t *accept_list = NULL;
+ int i = 0;
/* If existing version, remove it first */
if (strcmp(name_hashtable[get_status(status_num, 3)], "installed") == 0) {
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);
+ remove_package(status_package_num, 0);
} else {
printf("Unpacking %s (from %s) ...\n", package_name, deb_file->filename);
}
sprintf(info_prefix, "/var/lib/dpkg/info/%s.", package_name);
archive_handle = init_archive_deb_ar(deb_file->filename);
init_archive_deb_control(archive_handle);
+
+ while(all_control_files[i]) {
+ char *c = (char *) xmalloc(3 + bb_strlen(all_control_files[i]));
+ sprintf(c, "./%s", all_control_files[i]);
+ accept_list= llist_add_to(accept_list, c);
+ i++;
+ }
+ archive_handle->sub_archive->accept = accept_list;
+ archive_handle->sub_archive->filter = filter_accept_list;
archive_handle->sub_archive->action_data = data_extract_all_prefix;
archive_handle->sub_archive->buffer = info_prefix;
+ archive_handle->sub_archive->flags |= ARCHIVE_EXTRACT_UNCONDITIONAL;
unpack_ar_archive(archive_handle);
/* Run the preinst prior to extracting */
if (run_package_script(package_name, "preinst") != 0) {
/* when preinst returns exit code != 0 then quit installation process */
bb_error_msg_and_die("subprocess pre-installation script returned error.");
- }
+ }
/* Extract data.tar.gz to the root directory */
archive_handle = init_archive_deb_ar(deb_file->filename);
init_archive_deb_data(archive_handle);
+ archive_handle->sub_archive->action_data = data_extract_all_prefix;
+ archive_handle->sub_archive->buffer = "/";
+ archive_handle->sub_archive->flags |= ARCHIVE_EXTRACT_UNCONDITIONAL;
unpack_ar_archive(archive_handle);
/* Create the list file */
strcat(info_prefix, "list");
- out_stream = bb_xfopen(info_prefix, "w");
- while (archive_handle->passed) {
- /* blindly skip over the leading '.' */
- fputs(archive_handle->passed->data + 1, out_stream);
+ out_stream = bb_xfopen(info_prefix, "w");
+ while (archive_handle->sub_archive->passed) {
+ /* the leading . has been stripped by data_extract_all_prefix already */
+ fputs(archive_handle->sub_archive->passed->data, out_stream);
fputc('\n', out_stream);
- archive_handle->passed = archive_handle->passed->link;
+ archive_handle->sub_archive->passed = archive_handle->sub_archive->passed->link;
}
fclose(out_stream);
free(info_prefix);
}
-void configure_package(deb_file_t *deb_file)
+static 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);
+ printf("Setting up %s (%s) ...\n", package_name, package_version);
/* Run the postinst script */
if (run_package_script(package_name, "postinst") != 0) {
case 'F': // equivalent to --force in official dpkg
if (strcmp(optarg, "depends") == 0) {
dpkg_opt |= dpkg_opt_force_ignore_depends;
- }
+ }
+ break;
case 'i':
dpkg_opt |= dpkg_opt_install;
dpkg_opt |= dpkg_opt_filename;
list_packages();
return(EXIT_SUCCESS);
}
-
+
/* Read arguments and store relevant info in structs */
while (optind < argc) {
/* deb_count = nb_elem - 1 and we need nb_elem + 1 to allocate terminal node [NULL pointer] */
if (package_num == -1) {
bb_error_msg("Invalid control file in %s", argv[optind]);
+ 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;
/* 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)) {
+ status_node = (status_node_t *) xmalloc(sizeof(status_node_t));
+ status_node->package = deb_file[deb_count]->package;
/* reinstreq isnt changed to "ok" until the package control info
* is written to the status file*/
- status_node->status = search_name_hashtable("want-install reinstreq not-installed");
+ 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("want-install reinstreq not-installed");
+ set_status(status_num, "install", 1);
+ set_status(status_num, "reinstreq", 2);
}
}
}
if (package_hashtable[deb_file[deb_count]->package] == NULL) {
bb_error_msg_and_die("Package %s is uninstalled or unknown\n", argv[optind]);
}
- state_status = get_status(search_status_hashtable(name_hashtable[package_hashtable[deb_file[deb_count]->package]->name]), 3);
+ package_num = deb_file[deb_count]->package;
+ status_num = search_status_hashtable(name_hashtable[package_hashtable[package_num]->name]);
+ state_status = get_status(status_num, 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)) {
- bb_error_msg_and_die("%s is already removed.", name_hashtable[package_hashtable[deb_file[deb_count]->package]->name]);
+ bb_error_msg_and_die("%s is already removed.", name_hashtable[package_hashtable[package_num]->name]);
}
+ set_status(status_num, "deinstall", 1);
}
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) {
- bb_error_msg_and_die("%s is already purged.", name_hashtable[package_hashtable[deb_file[deb_count]->package]->name]);
+ bb_error_msg_and_die("%s is already purged.", name_hashtable[package_hashtable[package_num]->name]);
}
+ set_status(status_num, "purge", 1);
}
}
deb_count++;
deb_file[deb_count] = NULL;
/* 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)) {
bb_error_msg_and_die("Dependency check failed");
}
}
+ /* TODO: install or remove packages in the correct dependency order */
for (i = 0; i < deb_count; i++) {
/* Remove or purge packages */
if (dpkg_opt & dpkg_opt_remove) {
- remove_package(deb_file[i]->package);
+ remove_package(deb_file[i]->package, 1);
}
else if (dpkg_opt & dpkg_opt_purge) {
purge_package(deb_file[i]->package);
}
else if (dpkg_opt & dpkg_opt_install) {
unpack_package(deb_file[i]);
- configure_package(deb_file[i]);
+ /* package is configured in second pass below */
}
else if (dpkg_opt & dpkg_opt_configure) {
configure_package(deb_file[i]);
}
}
+ /* configure installed packages */
+ if (dpkg_opt & dpkg_opt_install) {
+ for (i = 0; i < deb_count; i++)
+ configure_package(deb_file[i]);
+ }
write_status_file(deb_file);
projects / oweals / busybox.git / blobdiff