148 lines
3.7 KiB
C
148 lines
3.7 KiB
C
/* app_manifest.c - Alpine Package Keeper (APK)
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*
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* Copyright (C) 2005-2017 Natanael Copa <n@tanael.org>
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* Copyright (C) 2008-2017 Timo Teräs <timo.teras@iki.fi>
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* Copyright (C) 2017 William Pitcock <nenolod@dereferenced.org>
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* All rights reserved.
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*
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* SPDX-License-Identifier: GPL-2.0-only
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*/
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#include <stdio.h>
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#include <sys/stat.h>
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#include "apk_defines.h"
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#include "apk_applet.h"
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#include "apk_database.h"
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#include "apk_version.h"
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#include "apk_print.h"
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/* TODO: support package files as well as generating manifest from the installed DB. */
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static char *csum_types[APK_CHECKSUM_SHA1 + 1] = {
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/* Note: if adding new algorithms, update apk-manifest(8) */
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[APK_CHECKSUM_MD5] = "md5",
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[APK_CHECKSUM_SHA1] = "sha1",
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};
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static void process_package(struct apk_database *db, struct apk_package *pkg)
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{
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struct apk_out *out = &db->ctx->out;
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struct apk_installed_package *ipkg = pkg->ipkg;
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struct apk_db_dir_instance *diri;
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struct apk_db_file *file;
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struct hlist_node *dc, *dn, *fc, *fn;
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const char *prefix1 = "", *prefix2 = "";
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char csum_buf[APK_BLOB_CHECKSUM_BUF];
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if (ipkg == NULL)
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return;
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if (apk_out_verbosity(out) > 1) {
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prefix1 = pkg->name->name;
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prefix2 = ": ";
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}
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hlist_for_each_entry_safe(diri, dc, dn, &ipkg->owned_dirs,
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pkg_dirs_list) {
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hlist_for_each_entry_safe(file, fc, fn, &diri->owned_files,
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diri_files_list) {
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apk_blob_t csum_blob = APK_BLOB_BUF(csum_buf);
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memset(csum_buf, '\0', sizeof(csum_buf));
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apk_blob_push_hexdump(&csum_blob, APK_BLOB_CSUM(file->csum));
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apk_out(out, "%s%s%s:%s " DIR_FILE_FMT,
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prefix1, prefix2,
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csum_types[file->csum.type], csum_buf,
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DIR_FILE_PRINTF(diri->dir, file));
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}
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}
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}
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struct manifest_file_ctx {
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struct apk_out *out;
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struct apk_sign_ctx *sctx;
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const char *prefix1, *prefix2;
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};
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static int read_file_entry(void *ctx, const struct apk_file_info *ae, struct apk_istream *is)
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{
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struct manifest_file_ctx *mctx = ctx;
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struct apk_out *out = mctx->out;
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char csum_buf[APK_BLOB_CHECKSUM_BUF];
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apk_blob_t csum_blob = APK_BLOB_BUF(csum_buf);
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int r;
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r = apk_sign_ctx_verify_tar(mctx->sctx, ae, is);
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if (r != 0)
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return r;
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if (!mctx->sctx->data_started)
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return 0;
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if ((ae->mode & S_IFMT) != S_IFREG)
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return 0;
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memset(csum_buf, '\0', sizeof(csum_buf));
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apk_blob_push_hexdump(&csum_blob, APK_DIGEST_BLOB(ae->digest));
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apk_out(out, "%s%s%s:%s %s",
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mctx->prefix1, mctx->prefix2,
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apk_digest_alg_str(ae->digest.alg), csum_buf,
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ae->name);
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return 0;
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}
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static void process_file(struct apk_database *db, const char *match)
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{
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struct apk_id_cache *idc = apk_ctx_get_id_cache(db->ctx);
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struct apk_out *out = &db->ctx->out;
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struct apk_sign_ctx sctx;
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struct manifest_file_ctx ctx = {
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.out = out,
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.sctx = &sctx,
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.prefix1 = "",
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.prefix2 = "",
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};
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int r;
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if (apk_out_verbosity(out) > 1) {
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ctx.prefix1 = match;
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ctx.prefix2 = ": ";
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}
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apk_sign_ctx_init(&sctx, APK_SIGN_VERIFY, NULL, apk_ctx_get_trust(db->ctx));
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r = apk_tar_parse(
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apk_istream_gunzip_mpart(apk_istream_from_file(AT_FDCWD, match), apk_sign_ctx_mpart_cb, &sctx),
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read_file_entry, &ctx, idc);
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apk_sign_ctx_free(&sctx);
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if (r < 0) apk_err(out, "%s: %s", match, apk_error_str(r));
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}
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static void process_match(struct apk_database *db, const char *match, struct apk_name *name, void *ctx)
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{
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struct apk_provider *p;
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if (name == NULL) {
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process_file(db, match);
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return;
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}
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foreach_array_item(p, name->providers)
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process_package(db, p->pkg);
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}
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static int manifest_main(void *applet_ctx, struct apk_ctx *ac, struct apk_string_array *args)
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{
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apk_name_foreach_matching(ac->db, args, apk_foreach_genid(), process_match, NULL);
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return 0;
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}
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static struct apk_applet apk_manifest = {
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.name = "manifest",
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.open_flags = APK_OPENF_READ,
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.main = manifest_main,
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};
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APK_DEFINE_APPLET(apk_manifest);
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