*
* started life as a busybox implementation of udpkg
*
- * licensed under gplv2 or later, see file license in this tarball for details.
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
*/
-
/*
* 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
*
* bugs that need to be fixed
* - (unknown, please let me know when you find any)
- *
*/
+//config:config DPKG
+//config: bool "dpkg"
+//config: default n
+//config: select FEATURE_SEAMLESS_GZ
+//config: help
+//config: dpkg is a medium-level tool to install, build, remove and manage
+//config: Debian packages.
+//config:
+//config: This implementation of dpkg has a number of limitations,
+//config: you should use the official dpkg if possible.
+
+//applet:IF_DPKG(APPLET(dpkg, BB_DIR_USR_BIN, BB_SUID_DROP))
+//kbuild:lib-$(CONFIG_DPKG) += dpkg.o
+
+//usage:#define dpkg_trivial_usage
+//usage: "[-ilCPru] [-F OPT] PACKAGE"
+//usage:#define dpkg_full_usage "\n\n"
+//usage: "Install, remove and manage Debian packages\n"
+//usage: IF_LONG_OPTS(
+//usage: "\n -i,--install Install the package"
+//usage: "\n -l,--list List of installed packages"
+//usage: "\n --configure Configure an unpackaged package"
+//usage: "\n -P,--purge Purge all files of a package"
+//usage: "\n -r,--remove Remove all but the configuration files for a package"
+//usage: "\n --unpack Unpack a package, but don't configure it"
+//usage: "\n --force-depends Ignore dependency problems"
+//usage: "\n --force-confnew Overwrite existing config files when installing"
+//usage: "\n --force-confold Keep old config files when installing"
+//usage: )
+//usage: IF_NOT_LONG_OPTS(
+//usage: "\n -i Install the package"
+//usage: "\n -l List of installed packages"
+//usage: "\n -C Configure an unpackaged package"
+//usage: "\n -P Purge all files of a package"
+//usage: "\n -r Remove all but the configuration files for a package"
+//usage: "\n -u Unpack a package, but don't configure it"
+//usage: "\n -F depends Ignore dependency problems"
+//usage: "\n -F confnew Overwrite existing config files when installing"
+//usage: "\n -F confold Keep old config files when installing"
+//usage: )
+
#include "libbb.h"
#include <fnmatch.h>
-#include "unarchive.h"
+#include "bb_archive.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.
{
char *ch_ver1 = name_hashtable[ver1];
char *ch_ver2 = name_hashtable[ver2];
- unsigned long epoch1 = 0, epoch2 = 0;
+ unsigned epoch1 = 0, epoch2 = 0;
char *colon;
char *deb_ver1, *deb_ver2;
char *upstream_ver1;
deb_ver1 = strrchr(upstream_ver1, '-');
deb_ver2 = strrchr(upstream_ver2, '-');
if (deb_ver1) {
- deb_ver1[0] = '\0';
- deb_ver1++;
+ *deb_ver1++ = '\0';
}
if (deb_ver2) {
- deb_ver2[0] = '\0';
- deb_ver2++;
+ *deb_ver2++ = '\0';
}
result = version_compare_part(upstream_ver1, upstream_ver2);
- if (!result)
+ if (result == 0) {
/* Compare debian versions */
result = version_compare_part(deb_ver1, deb_ver2);
+ }
free(upstream_ver1);
free(upstream_ver2);
static void set_status(const unsigned status_node_num, const char *new_value, const int position)
{
- const unsigned new_value_len = strlen(new_value);
const unsigned new_value_num = search_name_hashtable(new_value);
unsigned want = get_status(status_node_num, 1);
unsigned flag = get_status(status_node_num, 2);
unsigned 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:
bb_error_msg_and_die("DEBUG ONLY: this shouldnt happen");
if (field_name == NULL) {
break;
}
- if ((strcmp(field_name, "Priority") == 0) ||
- (strcmp(field_name, "Section") == 0)) {
+ 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) {
+ else if (strcmp("config-files", name_hashtable[state_status]) == 0) {
/* only change the status line */
while (1) {
char *field_name;
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");
+ 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;
}
conflicts[conflicts_num] = package_num;
conflicts_num++;
/* add provides to conflicts list */
- for (j = 0; j < package_hashtable[package_num]->num_of_edges; j++) {
+ 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,
if (package_edge->type == EDGE_CONFLICTS) {
const unsigned 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]);
if (package_edge->type == EDGE_OR_PRE_DEPENDS
|| package_edge->type == EDGE_OR_DEPENDS
- ) { /* start an EDGE_OR_ list */
+ ) {
+ /* start an EDGE_OR_ list */
number_of_alternatives = package_edge->version;
root_of_alternatives = package_edge;
continue;
}
- if (number_of_alternatives == 0) { /* not in the middle of an EDGE_OR_ list */
+ 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);
- if (package_edge->type == EDGE_PRE_DEPENDS ||
- package_edge->type == EDGE_DEPENDS) {
+ if (package_edge->type == EDGE_PRE_DEPENDS
+ || package_edge->type == EDGE_DEPENDS
+ ) {
int result=1;
status_num = 0;
*/
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",
- package_edge->type, root_of_alternatives->type);
+ package_edge->type, root_of_alternatives->type);
if (package_hashtable[package_num] != NULL)
result = !package_satisfies_dependency(package_num, package_edge->type);
name_str = name_hashtable[package_hashtable[status_hashtable[i]->package]->name];
vers_str = name_hashtable[package_hashtable[status_hashtable[i]->package]->version];
- if (pattern && fnmatch(pattern, name_str, 0))
+ if (pattern && fnmatch(pattern, name_str, 0) != 0)
continue;
/* get abbreviation for status field 1 */
#endif
/* Assign the tar handle as a subarchive of the ar handle */
- ar_handle->sub_archive = tar_handle;
+ ar_handle->dpkg__sub_archive = tar_handle;
}
static void init_archive_deb_data(archive_handle_t *ar_handle)
#endif
/* Assign the tar handle as a subarchive of the ar handle */
- ar_handle->sub_archive = tar_handle;
+ ar_handle->dpkg__sub_archive = tar_handle;
+}
+
+static void FAST_FUNC data_extract_to_buffer(archive_handle_t *archive_handle)
+{
+ unsigned size = archive_handle->file_header->size;
+
+ archive_handle->dpkg__buffer = xzalloc(size + 1);
+ xread(archive_handle->src_fd, archive_handle->dpkg__buffer, size);
}
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 = myaccept;
- ar_handle->sub_archive->filter = filter_accept_list;
+ ar_handle->dpkg__sub_archive->action_data = data_extract_to_buffer;
+ ar_handle->dpkg__sub_archive->accept = myaccept;
+ ar_handle->dpkg__sub_archive->filter = filter_accept_list;
unpack_ar_archive(ar_handle);
close(ar_handle->src_fd);
- return ar_handle->sub_archive->buffer;
+ return ar_handle->dpkg__sub_archive->dpkg__buffer;
+}
+
+static void append_control_file_to_llist(const char *package_name, const char *control_name, llist_t **ll)
+{
+ FILE *fp;
+ char *filename, *line;
+
+ filename = xasprintf("/var/lib/dpkg/info/%s.%s", package_name, control_name);
+ fp = fopen_for_read(filename);
+ free(filename);
+ if (fp != NULL) {
+ while ((line = xmalloc_fgetline(fp)) != NULL)
+ llist_add_to(ll, line);
+ fclose(fp);
+ }
+}
+
+static char FAST_FUNC filter_rename_config(archive_handle_t *archive_handle)
+{
+ int fd;
+ char *name_ptr = archive_handle->file_header->name + 1;
+
+ /* Is this file marked as config file? */
+ if (!find_list_entry(archive_handle->accept, name_ptr))
+ return EXIT_SUCCESS; /* no */
+
+ fd = open(name_ptr, O_RDONLY);
+ if (fd >= 0) {
+ md5_ctx_t md5;
+ char *md5line, *buf;
+ int count;
+
+ /* Calculate MD5 of existing file */
+ buf = xmalloc(4096);
+ md5_begin(&md5);
+ while ((count = safe_read(fd, buf, 4096)) > 0)
+ md5_hash(&md5, buf, count);
+ md5_end(&md5, buf); /* using buf as result storage */
+ close(fd);
+
+ md5line = xmalloc(16 * 2 + 2 + strlen(name_ptr) + 1);
+ sprintf(bin2hex(md5line, buf, 16), " %s", name_ptr);
+ free(buf);
+
+ /* Is it changed after install? */
+ if (find_list_entry(archive_handle->accept, md5line) == NULL) {
+ printf("Warning: Creating %s as %s.dpkg-new\n", name_ptr, name_ptr);
+ archive_handle->file_header->name = xasprintf("%s.dpkg-new", archive_handle->file_header->name);
+ }
+ free(md5line);
+ }
+ return EXIT_SUCCESS;
}
static void FAST_FUNC data_extract_all_prefix(archive_handle_t *archive_handle)
{
char *name_ptr = archive_handle->file_header->name;
- name_ptr += strspn(name_ptr, "./");
+ /* Skip all leading "/" */
+ while (*name_ptr == '/')
+ name_ptr++;
+ /* Skip all leading "./" and "../" */
+ while (name_ptr[0] == '.') {
+ if (name_ptr[1] == '.')
+ name_ptr++;
+ if (name_ptr[1] != '/')
+ break;
+ name_ptr += 2;
+ }
+
if (name_ptr[0] != '\0') {
- archive_handle->file_header->name = xasprintf("%s%s", archive_handle->buffer, name_ptr);
+ archive_handle->file_header->name = xasprintf("%s%s", archive_handle->dpkg__buffer, name_ptr);
data_extract_all(archive_handle);
+ if (fnmatch("*.dpkg-new", archive_handle->file_header->name, 0) == 0) {
+ /* remove .dpkg-new suffix */
+ archive_handle->file_header->name[strlen(archive_handle->file_header->name) - 9] = '\0';
+ }
}
}
+enum {
+ /* Commands */
+ OPT_configure = (1 << 0),
+ OPT_install = (1 << 1),
+ OPT_list_installed = (1 << 2),
+ OPT_purge = (1 << 3),
+ OPT_remove = (1 << 4),
+ OPT_unpack = (1 << 5),
+ OPTMASK_cmd = (1 << 6) - 1,
+ /* Options */
+ OPT_force = (1 << 6),
+ OPT_force_ignore_depends = (1 << 7),
+ OPT_force_confnew = (1 << 8),
+ OPT_force_confold = (1 << 9),
+};
+
static void unpack_package(deb_file_t *deb_file)
{
const char *package_name = name_hashtable[package_hashtable[deb_file->package]->name];
archive_handle_t *archive_handle;
FILE *out_stream;
llist_t *accept_list;
+ llist_t *conffile_list;
int i;
/* If existing version, remove it first */
+ conffile_list = NULL;
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);
+
+ /* Read md5sums from old package */
+ if (!(option_mask32 & OPT_force_confold))
+ append_control_file_to_llist(package_name, "md5sums", &conffile_list);
+
remove_package(status_package_num, 0);
} else {
printf("Unpacking %s (from %s)...\n", package_name, deb_file->filename);
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->ah_flags |= ARCHIVE_UNLINK_OLD;
+ archive_handle->dpkg__sub_archive->accept = accept_list;
+ archive_handle->dpkg__sub_archive->filter = filter_accept_list;
+ archive_handle->dpkg__sub_archive->action_data = data_extract_all_prefix;
+ archive_handle->dpkg__sub_archive->dpkg__buffer = info_prefix;
+ archive_handle->dpkg__sub_archive->ah_flags |= ARCHIVE_UNLINK_OLD;
unpack_ar_archive(archive_handle);
/* Run the preinst prior to extracting */
run_package_script_or_die(package_name, "preinst");
+ /* Don't overwrite existing config files */
+ if (!(option_mask32 & OPT_force_confnew))
+ append_control_file_to_llist(package_name, "conffiles", &conffile_list);
+
/* 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 = (char*)"/"; /* huh? */
- archive_handle->sub_archive->ah_flags |= ARCHIVE_UNLINK_OLD;
+ archive_handle->dpkg__sub_archive->accept = conffile_list;
+ /* Why ARCHIVE_REMEMBER_NAMES?
+ * We want names collected in ->passed list even if conffile_list
+ * is NULL (otherwise get_header_tar may optimize name saving out):
+ */
+ archive_handle->dpkg__sub_archive->ah_flags |= ARCHIVE_REMEMBER_NAMES | ARCHIVE_UNLINK_OLD;
+ archive_handle->dpkg__sub_archive->filter = filter_rename_config;
+ archive_handle->dpkg__sub_archive->action_data = data_extract_all_prefix;
+ archive_handle->dpkg__sub_archive->dpkg__buffer = (char*)"/"; /* huh? */
unpack_ar_archive(archive_handle);
/* Create the list file */
list_filename = xasprintf("/var/lib/dpkg/info/%s.%s", package_name, "list");
out_stream = xfopen_for_write(list_filename);
- while (archive_handle->sub_archive->passed) {
+ archive_handle->dpkg__sub_archive->passed = llist_rev(archive_handle->dpkg__sub_archive->passed);
+ while (archive_handle->dpkg__sub_archive->passed) {
+ char *filename = llist_pop(&archive_handle->dpkg__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->sub_archive->passed = archive_handle->sub_archive->passed->link;
+ fprintf(out_stream, "%s\n", filename);
+ free(filename);
}
fclose(out_stream);
int state_status;
int status_num;
int i;
- enum {
- OPT_configure = 0x1,
- OPT_force_ignore_depends = 0x2,
- OPT_install = 0x4,
- OPT_list_installed = 0x8,
- OPT_purge = 0x10,
- OPT_remove = 0x20,
- OPT_unpack = 0x40,
- };
+#if ENABLE_LONG_OPTS
+ static const char dpkg_longopts[] ALIGN1 =
+// FIXME: we use -C non-compatibly, should be:
+// "-C|--audit Check for broken package(s)"
+ "configure\0" No_argument "C"
+ "force\0" Required_argument "F"
+ "install\0" No_argument "i"
+ "list\0" No_argument "l"
+ "purge\0" No_argument "P"
+ "remove\0" No_argument "r"
+ "unpack\0" No_argument "u"
+ "force-depends\0" No_argument "\xff"
+ "force-confnew\0" No_argument "\xfe"
+ "force-confold\0" No_argument "\xfd"
+ ;
+#endif
INIT_G();
- opt = getopt32(argv, "CF:ilPru", &str_f);
+ IF_LONG_OPTS(applet_long_options = dpkg_longopts);
+ opt = getopt32(argv, "CilPruF:", &str_f);
+ argv += optind;
//if (opt & OPT_configure) ... // -C
- if (opt & OPT_force_ignore_depends) { // -F (--force in official dpkg)
- if (strcmp(str_f, "depends"))
- opt &= ~OPT_force_ignore_depends;
+ if (opt & OPT_force) { // -F (--force in official dpkg)
+ if (strcmp(str_f, "depends") == 0)
+ opt |= OPT_force_ignore_depends;
+ else if (strcmp(str_f, "confnew") == 0)
+ opt |= OPT_force_confnew;
+ else if (strcmp(str_f, "confold") == 0)
+ opt |= OPT_force_confold;
+ else
+ bb_show_usage();
+ option_mask32 = opt;
}
//if (opt & OPT_install) ... // -i
//if (opt & OPT_list_installed) ... // -l
//if (opt & OPT_purge) ... // -P
//if (opt & OPT_remove) ... // -r
//if (opt & OPT_unpack) ... // -u (--unpack in official dpkg)
- argv += optind;
- /* check for non-option argument if expected */
- if (!opt || (!argv[0] && !(opt && OPT_list_installed)))
+ if (!(opt & OPTMASK_cmd) /* no cmd */
+ || ((opt & OPTMASK_cmd) & ((opt & OPTMASK_cmd)-1)) /* more than one cmd */
+ ) {
bb_show_usage();
+ }
/* puts("(Reading database ... xxxxx files and directories installed.)"); */
index_status_file("/var/lib/dpkg/status");
/* if the list action was given print the installed packages and exit */
if (opt & OPT_list_installed) {
- list_packages(argv[0]);
+ list_packages(argv[0]); /* param can be NULL */
return EXIT_SUCCESS;
}
projects / platform / upstream / busybox.git / blobdiff