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/* 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.
*
* SPDX-License-Identifier: GPL-2.0-only
*/
#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",
};
static void process_package(struct apk_database *db, struct apk_package *pkg)
{
struct apk_out *out = &db->ctx->out;
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;
const char *prefix1 = "", *prefix2 = "";
char csum_buf[APK_BLOB_CHECKSUM_BUF];
if (ipkg == NULL)
return;
if (apk_out_verbosity(out) > 1) {
prefix1 = pkg->name->name;
prefix2 = ": ";
}
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));
apk_out(out, "%s%s%s:%s " DIR_FILE_FMT,
prefix1, prefix2,
csum_types[file->csum.type], csum_buf,
DIR_FILE_PRINTF(diri->dir, file));
}
}
}
struct manifest_file_ctx {
struct apk_out *out;
struct apk_sign_ctx *sctx;
const char *prefix1, *prefix2;
};
static int read_file_entry(void *ctx, const struct apk_file_info *ae, struct apk_istream *is)
{
struct manifest_file_ctx *mctx = ctx;
struct apk_out *out = mctx->out;
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_DIGEST_BLOB(ae->digest));
apk_out(out, "%s%s%s:%s %s",
mctx->prefix1, mctx->prefix2,
apk_digest_alg_str(ae->digest.alg), csum_buf,
ae->name);
return 0;
}
static void process_file(struct apk_database *db, const char *match)
{
struct apk_id_cache *idc = apk_ctx_get_id_cache(db->ctx);
struct apk_out *out = &db->ctx->out;
struct apk_sign_ctx sctx;
struct manifest_file_ctx ctx = {
.out = out,
.sctx = &sctx,
.prefix1 = "",
.prefix2 = "",
};
int r;
if (apk_out_verbosity(out) > 1) {
ctx.prefix1 = match;
ctx.prefix2 = ": ";
}
apk_sign_ctx_init(&sctx, APK_SIGN_VERIFY, NULL, apk_ctx_get_trust(db->ctx));
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, idc);
apk_sign_ctx_free(&sctx);
if (r < 0) apk_err(out, "%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 *applet_ctx, struct apk_ctx *ac, struct apk_string_array *args)
{
apk_name_foreach_matching(ac->db, args, apk_foreach_genid(), process_match, NULL);
return 0;
}
static struct apk_applet apk_manifest = {
.name = "manifest",
.open_flags = APK_OPENF_READ,
.main = manifest_main,
};
APK_DEFINE_APPLET(apk_manifest);
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