diff options
| -rw-r--r-- | archival/dpkg.c | 94 |
1 files changed, 61 insertions, 33 deletions
diff --git a/archival/dpkg.c b/archival/dpkg.c index 0b473b0..ac5f76a 100644 --- a/archival/dpkg.c +++ b/archival/dpkg.c @@ -124,7 +124,7 @@ static void make_hash(const char *key, unsigned *start, unsigned *decrement, con * shift amount is mod 24 because long int is 32 bit and data * 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) hash_num % hash_prime; *decrement = (unsigned) 1 + (hash_num % (hash_prime - 1)); @@ -133,8 +133,8 @@ static void make_hash(const char *key, unsigned *start, unsigned *decrement, con /* this adds the key to the hash table */ static int search_name_hashtable(const char *key) { - unsigned probe_address = 0; - unsigned probe_decrement = 0; + unsigned probe_address; + unsigned probe_decrement; make_hash(key, &probe_address, &probe_decrement, NAME_HASH_PRIME); while (name_hashtable[probe_address] != NULL) { @@ -155,8 +155,8 @@ static int search_name_hashtable(const char *key) */ static unsigned search_status_hashtable(const char *key) { - unsigned probe_address = 0; - unsigned probe_decrement = 0; + unsigned probe_address; + unsigned probe_decrement; make_hash(key, &probe_address, &probe_decrement, STATUS_HASH_PRIME); while (status_hashtable[probe_address] != NULL) { @@ -315,8 +315,8 @@ static int test_version(const unsigned version1, const unsigned version2, const static int search_package_hashtable(const unsigned name, const unsigned version, const unsigned operator) { - unsigned probe_address = 0; - unsigned probe_decrement = 0; + unsigned probe_address; + unsigned probe_decrement; make_hash(name_hashtable[name], &probe_address, &probe_decrement, PACKAGE_HASH_PRIME); while (package_hashtable[probe_address] != NULL) { @@ -410,10 +410,10 @@ static void add_split_dependencies(common_node_t *parent_node, const char *whole if ((edge_type == EDGE_DEPENDS || edge_type == EDGE_PRE_DEPENDS) && (strcmp(field, field2) != 0) ) { - or_edge = xmalloc(sizeof(edge_t)); + or_edge = xzalloc(sizeof(edge_t)); or_edge->type = edge_type + 1; or_edge->name = search_name_hashtable(field); - or_edge->version = 0; // tracks the number of alternatives + //or_edge->version = 0; // tracks the number of alternatives add_edge_to_node(parent_node, or_edge); } @@ -439,17 +439,13 @@ static void add_split_dependencies(common_node_t *parent_node, const char *whole if (offset_ch > 0) { if (strncmp(version, "=", offset_ch) == 0) { edge->operator = VER_EQUAL; - } - else if (strncmp(version, "<<", offset_ch) == 0) { + } else if (strncmp(version, "<<", offset_ch) == 0) { edge->operator = VER_LESS; - } - else if (strncmp(version, "<=", offset_ch) == 0) { + } else if (strncmp(version, "<=", offset_ch) == 0) { edge->operator = VER_LESS_EQUAL; - } - else if (strncmp(version, ">>", offset_ch) == 0) { + } else if (strncmp(version, ">>", offset_ch) == 0) { edge->operator = VER_MORE; - } - else if (strncmp(version, ">=", offset_ch) == 0) { + } else if (strncmp(version, ">=", offset_ch) == 0) { edge->operator = VER_MORE_EQUAL; } else { bb_error_msg_and_die("illegal operator"); @@ -1221,10 +1217,40 @@ static int run_package_script(const char *package_name, const char *script_type) return result; } +/* +The policy manual defines what scripts get called when and with +what arguments. I realize that busybox does not support all of +these scenarios, but it does support some of them; it does not, +however, run them with any parameters in run_package_script(). +Here are the scripts: + +preinst install +preinst install <old_version> +preinst upgrade <old_version> +preinst abort_upgrade <new_version> +postinst configure <most_recent_version> +postinst abort-upgade <new_version> +postinst abort-remove +postinst abort-remove in-favour <package> <version> +postinst abort-deconfigure in-favor <failed_install_package> removing <conflicting_package> <version> +prerm remove +prerm upgrade <new_version> +prerm failed-upgrade <old_version> +prerm remove in-favor <package> <new_version> +prerm deconfigure in-favour <package> <version> removing <package> <version> +postrm remove +postrm purge +postrm upgrade <new_version> +postrm failed-upgrade <old_version> +postrm abort-install +postrm abort-install <old_version> +postrm abort-upgrade <old_version> +postrm disappear <overwriter> <version> +*/ static const char *const all_control_files[] = { "preinst", "postinst", "prerm", "postrm", "list", "md5sums", "shlibs", "conffiles", - "config", "templates", NULL + "config", "templates" }; static char **all_control_list(const char *package_name) @@ -1233,9 +1259,10 @@ static char **all_control_list(const char *package_name) char **remove_files; /* Create a list of all /var/lib/dpkg/info/<package> files */ - remove_files = xzalloc(sizeof(all_control_files)); - while (all_control_files[i]) { - remove_files[i] = xasprintf("/var/lib/dpkg/info/%s.%s", package_name, all_control_files[i]); + remove_files = xzalloc(sizeof(all_control_files) + sizeof(char*)); + while (i < ARRAY_SIZE(all_control_files)) { + remove_files[i] = xasprintf("/var/lib/dpkg/info/%s.%s", + package_name, all_control_files[i]); i++; } @@ -1314,10 +1341,10 @@ static void remove_package(const unsigned package_num, int noisy) } /* 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); + sprintf(list_name, "/var/lib/dpkg/info/%s.%s", package_name, "list"); remove_files = create_list(list_name); - sprintf(conffile_name, "/var/lib/dpkg/info/%s.conffiles", package_name); + sprintf(conffile_name, "/var/lib/dpkg/info/%s.%s", package_name, "conffiles"); exclude_files = create_list(conffile_name); /* Some directories can't be removed straight away, so do multiple passes */ @@ -1328,7 +1355,7 @@ static void remove_package(const unsigned package_num, int noisy) /* Create a list of files in /var/lib/dpkg/info/<package>.* to keep */ exclude_files = xzalloc(sizeof(char*) * 3); exclude_files[0] = xstrdup(conffile_name); - exclude_files[1] = xasprintf("/var/lib/dpkg/info/%s.postrm", package_name); + exclude_files[1] = xasprintf("/var/lib/dpkg/info/%s.%s", package_name, "postrm"); /* Create a list of all /var/lib/dpkg/info/<package> files */ remove_files = all_control_list(package_name); @@ -1363,7 +1390,7 @@ static void purge_package(const unsigned package_num) } /* Create a list of files to remove */ - sprintf(list_name, "/var/lib/dpkg/info/%s.list", package_name); + sprintf(list_name, "/var/lib/dpkg/info/%s.%s", package_name, "list"); remove_files = create_list(list_name); exclude_files = xzalloc(sizeof(char*)); @@ -1471,8 +1498,8 @@ static void unpack_package(deb_file_t *deb_file) char *list_filename; archive_handle_t *archive_handle; FILE *out_stream; - llist_t *accept_list = NULL; - int i = 0; + llist_t *accept_list; + int i; /* If existing version, remove it first */ if (strcmp(name_hashtable[get_status(status_num, 3)], "installed") == 0) { @@ -1486,11 +1513,13 @@ static void unpack_package(deb_file_t *deb_file) } /* Extract control.tar.gz to /var/lib/dpkg/info/<package>.filename */ - info_prefix = xasprintf("/var/lib/dpkg/info/%s.", package_name); + info_prefix = xasprintf("/var/lib/dpkg/info/%s.%s", package_name, ""); archive_handle = init_archive_deb_ar(deb_file->filename); init_archive_deb_control(archive_handle); - while (all_control_files[i]) { + accept_list = NULL; + i = 0; + while (i < ARRAY_SIZE(all_control_files)) { char *c = xasprintf("./%s", all_control_files[i]); llist_add_to(&accept_list, c); i++; @@ -1517,7 +1546,7 @@ static void unpack_package(deb_file_t *deb_file) unpack_ar_archive(archive_handle); /* Create the list file */ - list_filename = xasprintf("/var/lib/dpkg/info/%s.list", package_name); + list_filename = xasprintf("/var/lib/dpkg/info/%s.%s", package_name, "list"); out_stream = xfopen(list_filename, "w"); while (archive_handle->sub_archive->passed) { /* the leading . has been stripped by data_extract_all_prefix already */ @@ -1554,7 +1583,7 @@ static void configure_package(deb_file_t *deb_file) } int dpkg_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; -int dpkg_main(int argc, char **argv) +int dpkg_main(int argc ATTRIBUTE_UNUSED, char **argv) { deb_file_t **deb_file = NULL; status_node_t *status_node; @@ -1586,10 +1615,9 @@ int dpkg_main(int argc, char **argv) //if (opt & OPT_purge) ... // -P //if (opt & OPT_remove) ... // -r //if (opt & OPT_unpack) ... // -u (--unpack in official dpkg) - argc -= optind; argv += optind; /* check for non-option argument if expected */ - if (!opt || (!argc && !(opt && OPT_list_installed))) + if (!opt || (!argv[0] && !(opt && OPT_list_installed))) bb_show_usage(); name_hashtable = xzalloc(sizeof(name_hashtable[0]) * (NAME_HASH_PRIME + 1)); |