/*
* 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.
* 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
/* 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 */
} status_node_t;
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,
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 function searches through the entire package_hashtable looking
* for a package which provides "needle". It returns the index into
- * the package_hashtable for the provining package.
+ * the package_hashtable for the providing package.
*
* needle is the index into name_hashtable of the package we are
* looking for.
} else {
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);
}
/* 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) {
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);
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 "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") )
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");
}
}
}
-/* This function returns TRUE if the given package can statisfy a
+/* This function returns TRUE if the given package can satisfy a
* dependency of type depend_type.
*
- * A pre-depends is statisfied only if a package is already installed,
+ * 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.
*/
const edge_t *package_edge = package_node->edge[j];
if (package_edge->type == EDGE_CONFLICTS) {
- const unsigned int package_num =
+ const unsigned int package_num =
search_package_hashtable(package_edge->name,
- package_edge->version,
- package_edge->operator);
+ 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]);
}
}
i++;
- }
+ }
/* Check dependendcies */
for (i = 0; i < PACKAGE_HASH_PRIME; i++) {
int status_num = 0;
int number_of_alternatives = 0;
- const edge_t * root_of_alternatives;
+ const edge_t * root_of_alternatives = NULL;
const common_node_t *package_node = package_hashtable[i];
/* If the package node does not exist then this
/* 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.
+ * case there are no dependencies to check.
*/
if ( status_hashtable[status_num] == NULL ) continue;
continue;
#endif
- /* This code is tested only for EDGE_DEPENDS, sine I
+ /* 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;
* this edge is the right type.
*
* EDGE_DEPENDS == OR_DEPENDS -1
- * EDGE_PRE_DEPENDS == OR_PRE_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 == 0 )
+
+ if ( result == 0 )
break;
}
}
if (result && number_of_alternatives == 0) {
if ( root_of_alternatives )
bb_error_msg_and_die(
- "Package %s %sdepends on %s, "
+ "Package %s %sdepends on %s, "
"which cannot be satisfied",
name_hashtable[package_node->name],
package_edge->type == EDGE_PRE_DEPENDS ? "pre-" : "",
name_hashtable[root_of_alternatives->name]);
- else
+ else
bb_error_msg_and_die(
- "Package %s %sdepends on %s, which %s\n",
+ "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],
/* we've found a package which
* satisfies the dependency,
* so skip over the rest of
- * the alternatives.
+ * the alternatives.
*/
j += number_of_alternatives;
number_of_alternatives = 0;
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);
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)
{
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);
}
char conffile_name[package_name_length + 30];
int return_value;
- if ( noisy )
+ if ( noisy )
printf("Removing %s (%s) ...\n", package_name, package_version);
/* run prerm script */
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);
{
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)
tar_handle = init_handle();
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)
tar_handle = init_handle();
tar_handle->src_fd = ar_handle->src_fd;
- /* We dont care about control.tar.* or debian-binary, just data.tar.* */
+ /* We don't care about control.tar.* or debian-binary, just data.tar.* */
#ifdef CONFIG_FEATURE_DEB_TAR_GZ
ar_handle->accept = llist_add_to(NULL, "data.tar.gz");
#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 *myaccept)
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);
/* Create the list file */
strcat(info_prefix, "list");
- out_stream = bb_xfopen(info_prefix, "w");
+ 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);
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;
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] */
projects / oweals / busybox.git / blobdiff