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-rw-r--r--src/app_manifest.c133
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);