diff options
Diffstat (limited to 'src/app_manifest.c')
| -rw-r--r-- | src/app_manifest.c | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/src/app_manifest.c b/src/app_manifest.c new file mode 100644 index 0000000..fe64bea --- /dev/null +++ b/src/app_manifest.c @@ -0,0 +1,133 @@ +/* app_manifest.c - Alpine Package Keeper (APK) + * + * Copyright (C) 2005-2017 Natanael Copa <n@tanael.org> + * Copyright (C) 2008-2017 Timo Teräs <timo.teras@iki.fi> + * Copyright (C) 2017 William Pitcock <nenolod@dereferenced.org> + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. See http://www.gnu.org/ for details. + */ + +#include <stdio.h> +#include <sys/stat.h> + +#include "apk_defines.h" +#include "apk_applet.h" +#include "apk_database.h" +#include "apk_version.h" +#include "apk_print.h" + +/* TODO: support package files as well as generating manifest from the installed DB. */ +static char *csum_types[APK_CHECKSUM_SHA1 + 1] = { + /* Note: if adding new algorithms, update apk-manifest(8) */ + [APK_CHECKSUM_MD5] = "md5", + [APK_CHECKSUM_SHA1] = "sha1", +}; + +struct manifest_file_ctx { + const char *file; + struct apk_sign_ctx *sctx; +}; + +static void process_package(struct apk_database *db, struct apk_package *pkg) +{ + struct apk_installed_package *ipkg = pkg->ipkg; + struct apk_db_dir_instance *diri; + struct apk_db_file *file; + struct hlist_node *dc, *dn, *fc, *fn; + char csum_buf[APK_BLOB_CHECKSUM_BUF]; + + if (ipkg == NULL) + return; + + hlist_for_each_entry_safe(diri, dc, dn, &ipkg->owned_dirs, + pkg_dirs_list) { + hlist_for_each_entry_safe(file, fc, fn, &diri->owned_files, + diri_files_list) { + apk_blob_t csum_blob = APK_BLOB_BUF(csum_buf); + + memset(csum_buf, '\0', sizeof(csum_buf)); + apk_blob_push_hexdump(&csum_blob, APK_BLOB_CSUM(file->csum)); + + if (apk_verbosity > 1) + printf("%s: ", pkg->name->name); + + printf("%s:%s " DIR_FILE_FMT "\n", csum_types[file->csum.type], csum_buf, DIR_FILE_PRINTF(diri->dir, file)); + } + } +} + +static int read_file_entry(void *ctx, const struct apk_file_info *ae, + struct apk_istream *is) +{ + struct manifest_file_ctx *mctx = ctx; + char csum_buf[APK_BLOB_CHECKSUM_BUF]; + apk_blob_t csum_blob = APK_BLOB_BUF(csum_buf); + int r; + + r = apk_sign_ctx_verify_tar(mctx->sctx, ae, is); + if (r != 0) + return r; + + if (!mctx->sctx->data_started) + return 0; + + if ((ae->mode & S_IFMT) != S_IFREG) + return 0; + + memset(csum_buf, '\0', sizeof(csum_buf)); + apk_blob_push_hexdump(&csum_blob, APK_BLOB_CSUM(ae->csum)); + + if (apk_verbosity > 1) + printf("%s: ", mctx->file); + + printf("%s:%s %s\n", csum_types[ae->csum.type], csum_buf, ae->name); + + return 0; +} + +static void process_file(struct apk_database *db, const char *match) +{ + struct apk_sign_ctx sctx; + struct manifest_file_ctx ctx = {match, &sctx}; + int r; + + apk_sign_ctx_init(&sctx, APK_SIGN_VERIFY, NULL, db->keys_fd); + r = apk_tar_parse( + apk_istream_gunzip_mpart(apk_istream_from_file(AT_FDCWD, match), apk_sign_ctx_mpart_cb, &sctx), + read_file_entry, &ctx, &db->id_cache); + apk_sign_ctx_free(&sctx); + if (r < 0) apk_error("%s: %s", match, apk_error_str(r)); +} + +static void process_match(struct apk_database *db, const char *match, struct apk_name *name, void *ctx) +{ + struct apk_provider *p; + + if (name == NULL) + { + process_file(db, match); + return; + } + + foreach_array_item(p, name->providers) + process_package(db, p->pkg); +} + +static int manifest_main(void *ctx, struct apk_database *db, struct apk_string_array *args) +{ + apk_name_foreach_matching(db, args, apk_foreach_genid(), process_match, NULL); + return 0; +} + +static struct apk_applet apk_manifest = { + .name = "manifest", + .arguments = "PACKAGE...", + .open_flags = APK_OPENF_READ, + .command_groups = APK_COMMAND_GROUP_REPO, + .main = manifest_main, +}; + +APK_DEFINE_APPLET(apk_manifest); |