79 lines
2.1 KiB
C
79 lines
2.1 KiB
C
/* context.c - Alpine Package Keeper (APK)
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*
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* Copyright (C) 2005-2008 Natanael Copa <n@tanael.org>
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* Copyright (C) 2008-2020 Timo Teräs <timo.teras@iki.fi>
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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 <errno.h>
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#include <unistd.h>
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#include <sys/stat.h>
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#include "apk_context.h"
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void apk_ctx_init(struct apk_ctx *ac)
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{
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memset(ac, 0, sizeof *ac);
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apk_string_array_init(&ac->repository_list);
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apk_string_array_init(&ac->private_keys);
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apk_out_reset(&ac->out);
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ac->out.out = stdout;
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ac->out.err = stderr;
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ac->out.verbosity = 1;
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}
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void apk_ctx_free(struct apk_ctx *ac)
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{
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apk_id_cache_free(&ac->id_cache);
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adb_trust_free(&ac->trust);
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apk_string_array_free(&ac->repository_list);
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apk_string_array_free(&ac->private_keys);
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}
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int apk_ctx_prepare(struct apk_ctx *ac)
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{
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if (ac->flags & APK_SIMULATE &&
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ac->open_flags & (APK_OPENF_CREATE | APK_OPENF_WRITE)) {
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ac->open_flags &= ~(APK_OPENF_CREATE | APK_OPENF_WRITE);
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ac->open_flags |= APK_OPENF_READ;
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}
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if (!ac->cache_dir) ac->cache_dir = "etc/apk/cache";
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if (!ac->keys_dir) ac->keys_dir = "etc/apk/keys";
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if (!ac->root) ac->root = "/";
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if (!ac->cache_max_age) ac->cache_max_age = 4*60*60; /* 4 hours default */
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ac->root_fd = openat(AT_FDCWD, ac->root, O_RDONLY | O_CLOEXEC);
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if (ac->root_fd < 0 && (ac->open_flags & APK_OPENF_CREATE)) {
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mkdirat(AT_FDCWD, ac->root, 0755);
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ac->root_fd = openat(AT_FDCWD, ac->root, O_RDONLY | O_CLOEXEC);
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}
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if (ac->root_fd < 0) {
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apk_err(&ac->out, "Unable to open root: %s", apk_error_str(errno));
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return -errno;
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}
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return 0;
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}
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int apk_ctx_fd_keys(struct apk_ctx *ac)
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{
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if (ac->keys_fd <= 0) ac->keys_fd = openat(ac->root_fd, ac->keys_dir, O_RDONLY | O_CLOEXEC);
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return ac->keys_fd;
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}
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struct adb_trust *apk_ctx_get_trust(struct apk_ctx *ac)
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{
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if (!ac->trust.mdctx) {
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int r = adb_trust_init(&ac->trust, dup(apk_ctx_fd_keys(ac)), ac->private_keys);
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if (r) return ERR_PTR(r);
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}
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return &ac->trust;
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}
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struct apk_id_cache *apk_ctx_get_id_cache(struct apk_ctx *ac)
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{
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if (!ac->id_cache.root_fd)
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apk_id_cache_init(&ac->id_cache, apk_ctx_fd_root(ac));
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return &ac->id_cache;
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}
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