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-rw-r--r--lib/libalpm/be_local.c1003
1 files changed, 1003 insertions, 0 deletions
diff --git a/lib/libalpm/be_local.c b/lib/libalpm/be_local.c
new file mode 100644
index 00000000..848ecc58
--- /dev/null
+++ b/lib/libalpm/be_local.c
@@ -0,0 +1,1003 @@
+/*
+ * be_local.c
+ *
+ * Copyright (c) 2006-2011 Pacman Development Team <pacman-dev@archlinux.org>
+ * Copyright (c) 2002-2006 by Judd Vinet <jvinet@zeroflux.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <string.h>
+#include <stdint.h> /* intmax_t */
+#include <sys/stat.h>
+#include <dirent.h>
+#include <time.h>
+#include <limits.h> /* PATH_MAX */
+
+/* libarchive */
+#include <archive.h>
+#include <archive_entry.h>
+
+/* libalpm */
+#include "db.h"
+#include "alpm_list.h"
+#include "log.h"
+#include "util.h"
+#include "alpm.h"
+#include "handle.h"
+#include "package.h"
+#include "group.h"
+#include "deps.h"
+#include "dload.h"
+
+
+#define LAZY_LOAD(info, errret) \
+ do { \
+ ALPM_LOG_FUNC; \
+ ASSERT(handle != NULL, return(errret)); \
+ ASSERT(pkg != NULL, return(errret)); \
+ if(pkg->origin != PKG_FROM_FILE && !(pkg->infolevel & info)) { \
+ _alpm_local_db_read(pkg->origin_data.db, pkg, info); \
+ } \
+ } while(0)
+
+
+/* Cache-specific accessor functions. These implementations allow for lazy
+ * loading by the files backend when a data member is actually needed
+ * rather than loading all pieces of information when the package is first
+ * initialized.
+ */
+
+static const char *_cache_get_filename(pmpkg_t *pkg)
+{
+ LAZY_LOAD(INFRQ_DESC, NULL);
+ return pkg->filename;
+}
+
+static const char *_cache_get_name(pmpkg_t *pkg)
+{
+ ASSERT(pkg != NULL, return(NULL));
+ return pkg->name;
+}
+
+static const char *_cache_get_version(pmpkg_t *pkg)
+{
+ ASSERT(pkg != NULL, return(NULL));
+ return pkg->version;
+}
+
+static const char *_cache_get_desc(pmpkg_t *pkg)
+{
+ LAZY_LOAD(INFRQ_DESC, NULL);
+ return pkg->desc;
+}
+
+static const char *_cache_get_url(pmpkg_t *pkg)
+{
+ LAZY_LOAD(INFRQ_DESC, NULL);
+ return pkg->url;
+}
+
+static time_t _cache_get_builddate(pmpkg_t *pkg)
+{
+ LAZY_LOAD(INFRQ_DESC, 0);
+ return pkg->builddate;
+}
+
+static time_t _cache_get_installdate(pmpkg_t *pkg)
+{
+ LAZY_LOAD(INFRQ_DESC, 0);
+ return pkg->installdate;
+}
+
+static const char *_cache_get_packager(pmpkg_t *pkg)
+{
+ LAZY_LOAD(INFRQ_DESC, NULL);
+ return pkg->packager;
+}
+
+static const char *_cache_get_md5sum(pmpkg_t *pkg)
+{
+ LAZY_LOAD(INFRQ_DESC, NULL);
+ return pkg->md5sum;
+}
+
+static const char *_cache_get_arch(pmpkg_t *pkg)
+{
+ LAZY_LOAD(INFRQ_DESC, NULL);
+ return pkg->arch;
+}
+
+static off_t _cache_get_size(pmpkg_t *pkg)
+{
+ LAZY_LOAD(INFRQ_DESC, -1);
+ return pkg->size;
+}
+
+static off_t _cache_get_isize(pmpkg_t *pkg)
+{
+ LAZY_LOAD(INFRQ_DESC, -1);
+ return pkg->isize;
+}
+
+static pmpkgreason_t _cache_get_reason(pmpkg_t *pkg)
+{
+ LAZY_LOAD(INFRQ_DESC, -1);
+ return pkg->reason;
+}
+
+static alpm_list_t *_cache_get_licenses(pmpkg_t *pkg)
+{
+ LAZY_LOAD(INFRQ_DESC, NULL);
+ return pkg->licenses;
+}
+
+static alpm_list_t *_cache_get_groups(pmpkg_t *pkg)
+{
+ LAZY_LOAD(INFRQ_DESC, NULL);
+ return pkg->groups;
+}
+
+static int _cache_has_scriptlet(pmpkg_t *pkg)
+{
+ ALPM_LOG_FUNC;
+
+ /* Sanity checks */
+ ASSERT(handle != NULL, return(-1));
+ ASSERT(pkg != NULL, return(-1));
+
+ if(!(pkg->infolevel & INFRQ_SCRIPTLET)) {
+ _alpm_local_db_read(pkg->origin_data.db, pkg, INFRQ_SCRIPTLET);
+ }
+ return pkg->scriptlet;
+}
+
+static alpm_list_t *_cache_get_depends(pmpkg_t *pkg)
+{
+ LAZY_LOAD(INFRQ_DESC, NULL);
+ return pkg->depends;
+}
+
+static alpm_list_t *_cache_get_optdepends(pmpkg_t *pkg)
+{
+ LAZY_LOAD(INFRQ_DESC, NULL);
+ return pkg->optdepends;
+}
+
+static alpm_list_t *_cache_get_conflicts(pmpkg_t *pkg)
+{
+ LAZY_LOAD(INFRQ_DESC, NULL);
+ return pkg->conflicts;
+}
+
+static alpm_list_t *_cache_get_provides(pmpkg_t *pkg)
+{
+ LAZY_LOAD(INFRQ_DESC, NULL);
+ return pkg->provides;
+}
+
+static alpm_list_t *_cache_get_replaces(pmpkg_t *pkg)
+{
+ LAZY_LOAD(INFRQ_DESC, NULL);
+ return pkg->replaces;
+}
+
+/* local packages can not have deltas */
+static alpm_list_t *_cache_get_deltas(pmpkg_t *pkg)
+{
+ return NULL;
+}
+
+static alpm_list_t *_cache_get_files(pmpkg_t *pkg)
+{
+ ALPM_LOG_FUNC;
+
+ /* Sanity checks */
+ ASSERT(handle != NULL, return(NULL));
+ ASSERT(pkg != NULL, return(NULL));
+
+ if(pkg->origin == PKG_FROM_LOCALDB
+ && !(pkg->infolevel & INFRQ_FILES)) {
+ _alpm_local_db_read(pkg->origin_data.db, pkg, INFRQ_FILES);
+ }
+ return pkg->files;
+}
+
+static alpm_list_t *_cache_get_backup(pmpkg_t *pkg)
+{
+ ALPM_LOG_FUNC;
+
+ /* Sanity checks */
+ ASSERT(handle != NULL, return(NULL));
+ ASSERT(pkg != NULL, return(NULL));
+
+ if(pkg->origin == PKG_FROM_LOCALDB
+ && !(pkg->infolevel & INFRQ_FILES)) {
+ _alpm_local_db_read(pkg->origin_data.db, pkg, INFRQ_FILES);
+ }
+ return pkg->backup;
+}
+
+/**
+ * Open a package changelog for reading. Similar to fopen in functionality,
+ * except that the returned 'file stream' is from the database.
+ * @param pkg the package (from db) to read the changelog
+ * @return a 'file stream' to the package changelog
+ */
+static void *_cache_changelog_open(pmpkg_t *pkg)
+{
+ ALPM_LOG_FUNC;
+
+ /* Sanity checks */
+ ASSERT(handle != NULL, return(NULL));
+ ASSERT(pkg != NULL, return(NULL));
+
+ char clfile[PATH_MAX];
+ snprintf(clfile, PATH_MAX, "%s/%s/%s-%s/changelog",
+ alpm_option_get_dbpath(),
+ alpm_db_get_name(alpm_pkg_get_db(pkg)),
+ alpm_pkg_get_name(pkg),
+ alpm_pkg_get_version(pkg));
+ return fopen(clfile, "r");
+}
+
+/**
+ * Read data from an open changelog 'file stream'. Similar to fread in
+ * functionality, this function takes a buffer and amount of data to read.
+ * @param ptr a buffer to fill with raw changelog data
+ * @param size the size of the buffer
+ * @param pkg the package that the changelog is being read from
+ * @param fp a 'file stream' to the package changelog
+ * @return the number of characters read, or 0 if there is no more data
+ */
+static size_t _cache_changelog_read(void *ptr, size_t size,
+ const pmpkg_t *pkg, const void *fp)
+{
+ return ( fread(ptr, 1, size, (FILE*)fp) );
+}
+
+/*
+static int _cache_changelog_feof(const pmpkg_t *pkg, void *fp)
+{
+ return( feof((FILE*)fp) );
+}
+*/
+
+/**
+ * Close a package changelog for reading. Similar to fclose in functionality,
+ * except that the 'file stream' is from the database.
+ * @param pkg the package that the changelog was read from
+ * @param fp a 'file stream' to the package changelog
+ * @return whether closing the package changelog stream was successful
+ */
+static int _cache_changelog_close(const pmpkg_t *pkg, void *fp)
+{
+ return( fclose((FILE*)fp) );
+}
+
+
+/** The local database operations struct. Get package fields through
+ * lazy accessor methods that handle any backend loading and caching
+ * logic.
+ */
+static struct pkg_operations local_pkg_ops = {
+ .get_filename = _cache_get_filename,
+ .get_name = _cache_get_name,
+ .get_version = _cache_get_version,
+ .get_desc = _cache_get_desc,
+ .get_url = _cache_get_url,
+ .get_builddate = _cache_get_builddate,
+ .get_installdate = _cache_get_installdate,
+ .get_packager = _cache_get_packager,
+ .get_md5sum = _cache_get_md5sum,
+ .get_arch = _cache_get_arch,
+ .get_size = _cache_get_size,
+ .get_isize = _cache_get_isize,
+ .get_reason = _cache_get_reason,
+ .has_scriptlet = _cache_has_scriptlet,
+ .get_licenses = _cache_get_licenses,
+ .get_groups = _cache_get_groups,
+ .get_depends = _cache_get_depends,
+ .get_optdepends = _cache_get_optdepends,
+ .get_conflicts = _cache_get_conflicts,
+ .get_provides = _cache_get_provides,
+ .get_replaces = _cache_get_replaces,
+ .get_deltas = _cache_get_deltas,
+ .get_files = _cache_get_files,
+ .get_backup = _cache_get_backup,
+
+ .changelog_open = _cache_changelog_open,
+ .changelog_read = _cache_changelog_read,
+ .changelog_close = _cache_changelog_close,
+};
+
+static int checkdbdir(pmdb_t *db)
+{
+ struct stat buf;
+ const char *path = _alpm_db_path(db);
+
+ if(stat(path, &buf) != 0) {
+ _alpm_log(PM_LOG_DEBUG, "database dir '%s' does not exist, creating it\n",
+ path);
+ if(_alpm_makepath(path) != 0) {
+ RET_ERR(PM_ERR_SYSTEM, -1);
+ }
+ } else if(!S_ISDIR(buf.st_mode)) {
+ _alpm_log(PM_LOG_WARNING, _("removing invalid database: %s\n"), path);
+ if(unlink(path) != 0 || _alpm_makepath(path) != 0) {
+ RET_ERR(PM_ERR_SYSTEM, -1);
+ }
+ }
+ return(0);
+}
+
+static int is_dir(const char *path, struct dirent *entry)
+{
+#ifdef HAVE_STRUCT_DIRENT_D_TYPE
+ return(entry->d_type == DT_DIR);
+#else
+ char buffer[PATH_MAX];
+ snprintf(buffer, PATH_MAX, "%s/%s", path, entry->d_name);
+
+ struct stat sbuf;
+ if (!stat(buffer, &sbuf)) {
+ return(S_ISDIR(sbuf.st_mode));
+ }
+
+ return(0);
+#endif
+}
+
+static int local_db_populate(pmdb_t *db)
+{
+ size_t est_count;
+ int count = 0;
+ struct stat buf;
+ struct dirent *ent = NULL;
+ const char *dbpath;
+ DIR *dbdir;
+
+ ALPM_LOG_FUNC;
+
+ ASSERT(db != NULL, RET_ERR(PM_ERR_DB_NULL, -1));
+
+ dbpath = _alpm_db_path(db);
+ if(dbpath == NULL) {
+ RET_ERR(PM_ERR_DB_OPEN, -1);
+ }
+ dbdir = opendir(dbpath);
+ if(dbdir == NULL) {
+ if(errno == ENOENT) {
+ /* no database existing yet is not an error */
+ return(0);
+ }
+ RET_ERR(PM_ERR_DB_OPEN, -1);
+ }
+ if(fstat(dirfd(dbdir), &buf) != 0) {
+ RET_ERR(PM_ERR_DB_OPEN, -1);
+ }
+ if(buf.st_nlink >= 2) {
+ est_count = buf.st_nlink;
+ } else {
+ /* Some filesystems don't subscribe to the two-implicit links school of
+ * thought, e.g. BTRFS, HFS+. See
+ * http://kerneltrap.org/mailarchive/linux-btrfs/2010/1/23/6723483/thread
+ */
+ est_count = 0;
+ while((ent = readdir(dbdir)) != NULL) {
+ est_count++;
+ }
+ rewinddir(dbdir);
+ }
+ if(est_count >= 2) {
+ /* subtract the two extra pointers to get # of children */
+ est_count -= 2;
+ }
+
+ /* initialize hash at 50% full */
+ db->pkgcache = _alpm_pkghash_create(est_count * 2);
+ if(db->pkgcache == NULL){
+ closedir(dbdir);
+ RET_ERR(PM_ERR_MEMORY, -1);
+ }
+
+ while((ent = readdir(dbdir)) != NULL) {
+ const char *name = ent->d_name;
+
+ pmpkg_t *pkg;
+
+ if(strcmp(name, ".") == 0 || strcmp(name, "..") == 0) {
+ continue;
+ }
+ if(!is_dir(dbpath, ent)) {
+ continue;
+ }
+
+ pkg = _alpm_pkg_new();
+ if(pkg == NULL) {
+ closedir(dbdir);
+ RET_ERR(PM_ERR_MEMORY, -1);
+ }
+ /* split the db entry name */
+ if(_alpm_splitname(name, pkg) != 0) {
+ _alpm_log(PM_LOG_ERROR, _("invalid name for database entry '%s'\n"),
+ name);
+ _alpm_pkg_free(pkg);
+ continue;
+ }
+
+ /* duplicated database entries are not allowed */
+ if(_alpm_pkghash_find(db->pkgcache, pkg->name)) {
+ _alpm_log(PM_LOG_ERROR, _("duplicated database entry '%s'\n"), pkg->name);
+ _alpm_pkg_free(pkg);
+ continue;
+ }
+
+ pkg->origin = PKG_FROM_LOCALDB;
+ pkg->origin_data.db = db;
+ pkg->ops = &local_pkg_ops;
+
+ /* explicitly read with only 'BASE' data, accessors will handle the rest */
+ if(_alpm_local_db_read(db, pkg, INFRQ_BASE) == -1) {
+ _alpm_log(PM_LOG_ERROR, _("corrupted database entry '%s'\n"), name);
+ _alpm_pkg_free(pkg);
+ continue;
+ }
+
+ /* add to the collection */
+ _alpm_log(PM_LOG_FUNCTION, "adding '%s' to package cache for db '%s'\n",
+ pkg->name, db->treename);
+ db->pkgcache = _alpm_pkghash_add(db->pkgcache, pkg);
+ count++;
+ }
+
+ closedir(dbdir);
+ if(count > 0) {
+ db->pkgcache->list = alpm_list_msort(db->pkgcache->list, (size_t)count, _alpm_pkg_cmp);
+ }
+ return(count);
+}
+
+/* Note: the return value must be freed by the caller */
+static char *get_pkgpath(pmdb_t *db, pmpkg_t *info)
+{
+ size_t len;
+ char *pkgpath;
+ const char *dbpath;
+
+ dbpath = _alpm_db_path(db);
+ len = strlen(dbpath) + strlen(info->name) + strlen(info->version) + 3;
+ MALLOC(pkgpath, len, RET_ERR(PM_ERR_MEMORY, NULL));
+ sprintf(pkgpath, "%s%s-%s/", dbpath, info->name, info->version);
+ return(pkgpath);
+}
+
+
+int _alpm_local_db_read(pmdb_t *db, pmpkg_t *info, pmdbinfrq_t inforeq)
+{
+ FILE *fp = NULL;
+ char path[PATH_MAX];
+ char line[1024];
+ char *pkgpath = NULL;
+
+ ALPM_LOG_FUNC;
+
+ if(db == NULL) {
+ RET_ERR(PM_ERR_DB_NULL, -1);
+ }
+
+ if(info == NULL || info->name == NULL || info->version == NULL) {
+ _alpm_log(PM_LOG_DEBUG, "invalid package entry provided to _alpm_local_db_read, skipping\n");
+ return(-1);
+ }
+
+ if(info->origin != PKG_FROM_LOCALDB) {
+ _alpm_log(PM_LOG_DEBUG,
+ "request to read info for a non-local package '%s', skipping...\n",
+ info->name);
+ return(-1);
+ }
+
+ /* bitmask logic here:
+ * infolevel: 00001111
+ * inforeq: 00010100
+ * & result: 00000100
+ * == to inforeq? nope, we need to load more info. */
+ if((info->infolevel & inforeq) == inforeq) {
+ /* already loaded all of this info, do nothing */
+ return(0);
+ }
+ _alpm_log(PM_LOG_FUNCTION, "loading package data for %s : level=0x%x\n",
+ info->name, inforeq);
+
+ /* clear out 'line', to be certain - and to make valgrind happy */
+ memset(line, 0, sizeof(line));
+
+ pkgpath = get_pkgpath(db, info);
+
+ if(access(pkgpath, F_OK)) {
+ /* directory doesn't exist or can't be opened */
+ _alpm_log(PM_LOG_DEBUG, "cannot find '%s-%s' in db '%s'\n",
+ info->name, info->version, db->treename);
+ goto error;
+ }
+
+ /* DESC */
+ if(inforeq & INFRQ_DESC && !(info->infolevel & INFRQ_DESC)) {
+ snprintf(path, PATH_MAX, "%sdesc", pkgpath);
+ if((fp = fopen(path, "r")) == NULL) {
+ _alpm_log(PM_LOG_ERROR, _("could not open file %s: %s\n"), path, strerror(errno));
+ goto error;
+ }
+ while(!feof(fp)) {
+ if(fgets(line, sizeof(line), fp) == NULL) {
+ break;
+ }
+ _alpm_strtrim(line);
+ if(strcmp(line, "%NAME%") == 0) {
+ if(fgets(line, sizeof(line), fp) == NULL) {
+ goto error;
+ }
+ if(strcmp(_alpm_strtrim(line), info->name) != 0) {
+ _alpm_log(PM_LOG_ERROR, _("%s database is inconsistent: name "
+ "mismatch on package %s\n"), db->treename, info->name);
+ }
+ } else if(strcmp(line, "%VERSION%") == 0) {
+ if(fgets(line, sizeof(line), fp) == NULL) {
+ goto error;
+ }
+ if(strcmp(_alpm_strtrim(line), info->version) != 0) {
+ _alpm_log(PM_LOG_ERROR, _("%s database is inconsistent: version "
+ "mismatch on package %s\n"), db->treename, info->name);
+ }
+ } else if(strcmp(line, "%DESC%") == 0) {
+ if(fgets(line, sizeof(line), fp) == NULL) {
+ goto error;
+ }
+ STRDUP(info->desc, _alpm_strtrim(line), goto error);
+ } else if(strcmp(line, "%GROUPS%") == 0) {
+ while(fgets(line, sizeof(line), fp) && strlen(_alpm_strtrim(line))) {
+ char *linedup;
+ STRDUP(linedup, line, goto error);
+ info->groups = alpm_list_add(info->groups, linedup);
+ }
+ } else if(strcmp(line, "%URL%") == 0) {
+ if(fgets(line, sizeof(line), fp) == NULL) {
+ goto error;
+ }
+ STRDUP(info->url, _alpm_strtrim(line), goto error);
+ } else if(strcmp(line, "%LICENSE%") == 0) {
+ while(fgets(line, sizeof(line), fp) && strlen(_alpm_strtrim(line))) {
+ char *linedup;
+ STRDUP(linedup, line, goto error);
+ info->licenses = alpm_list_add(info->licenses, linedup);
+ }
+ } else if(strcmp(line, "%ARCH%") == 0) {
+ if(fgets(line, sizeof(line), fp) == NULL) {
+ goto error;
+ }
+ STRDUP(info->arch, _alpm_strtrim(line), goto error);
+ } else if(strcmp(line, "%BUILDDATE%") == 0) {
+ if(fgets(line, sizeof(line), fp) == NULL) {
+ goto error;
+ }
+ _alpm_strtrim(line);
+ info->builddate = _alpm_parsedate(line);
+ } else if(strcmp(line, "%INSTALLDATE%") == 0) {
+ if(fgets(line, sizeof(line), fp) == NULL) {
+ goto error;
+ }
+ _alpm_strtrim(line);
+ info->installdate = _alpm_parsedate(line);
+ } else if(strcmp(line, "%PACKAGER%") == 0) {
+ if(fgets(line, sizeof(line), fp) == NULL) {
+ goto error;
+ }
+ STRDUP(info->packager, _alpm_strtrim(line), goto error);
+ } else if(strcmp(line, "%REASON%") == 0) {
+ if(fgets(line, sizeof(line), fp) == NULL) {
+ goto error;
+ }
+ info->reason = (pmpkgreason_t)atol(_alpm_strtrim(line));
+ } else if(strcmp(line, "%SIZE%") == 0) {
+ /* NOTE: the CSIZE and SIZE fields both share the "size" field
+ * in the pkginfo_t struct. This can be done b/c CSIZE
+ * is currently only used in sync databases, and SIZE is
+ * only used in local databases.
+ */
+ if(fgets(line, sizeof(line), fp) == NULL) {
+ goto error;
+ }
+ info->size = atol(_alpm_strtrim(line));
+ /* also store this value to isize */
+ info->isize = info->size;
+ } else if(strcmp(line, "%REPLACES%") == 0) {
+ while(fgets(line, sizeof(line), fp) && strlen(_alpm_strtrim(line))) {
+ char *linedup;
+ STRDUP(linedup, line, goto error);
+ info->replaces = alpm_list_add(info->replaces, linedup);
+ }
+ } else if(strcmp(line, "%DEPENDS%") == 0) {
+ while(fgets(line, sizeof(line), fp) && strlen(_alpm_strtrim(line))) {
+ pmdepend_t *dep = _alpm_splitdep(line);
+ info->depends = alpm_list_add(info->depends, dep);
+ }
+ } else if(strcmp(line, "%OPTDEPENDS%") == 0) {
+ while(fgets(line, sizeof(line), fp) && strlen(_alpm_strtrim(line))) {
+ char *linedup;
+ STRDUP(linedup, line, goto error);
+ info->optdepends = alpm_list_add(info->optdepends, linedup);
+ }
+ } else if(strcmp(line, "%CONFLICTS%") == 0) {
+ while(fgets(line, sizeof(line), fp) && strlen(_alpm_strtrim(line))) {
+ char *linedup;
+ STRDUP(linedup, line, goto error);
+ info->conflicts = alpm_list_add(info->conflicts, linedup);
+ }
+ } else if(strcmp(line, "%PROVIDES%") == 0) {
+ while(fgets(line, sizeof(line), fp) && strlen(_alpm_strtrim(line))) {
+ char *linedup;
+ STRDUP(linedup, line, goto error);
+ info->provides = alpm_list_add(info->provides, linedup);
+ }
+ }
+ }
+ fclose(fp);
+ fp = NULL;
+ }
+
+ /* FILES */
+ if(inforeq & INFRQ_FILES && !(info->infolevel & INFRQ_FILES)) {
+ snprintf(path, PATH_MAX, "%sfiles", pkgpath);
+ if((fp = fopen(path, "r")) == NULL) {
+ _alpm_log(PM_LOG_ERROR, _("could not open file %s: %s\n"), path, strerror(errno));
+ goto error;
+ }
+ while(fgets(line, sizeof(line), fp)) {
+ _alpm_strtrim(line);
+ if(strcmp(line, "%FILES%") == 0) {
+ while(fgets(line, sizeof(line), fp) && strlen(_alpm_strtrim(line))) {
+ char *linedup;
+ STRDUP(linedup, line, goto error);
+ info->files = alpm_list_add(info->files, linedup);
+ }
+ } else if(strcmp(line, "%BACKUP%") == 0) {
+ while(fgets(line, sizeof(line), fp) && strlen(_alpm_strtrim(line))) {
+ char *linedup;
+ STRDUP(linedup, line, goto error);
+ info->backup = alpm_list_add(info->backup, linedup);
+ }
+ }
+ }
+ fclose(fp);
+ fp = NULL;
+ }
+
+ /* INSTALL */
+ if(inforeq & INFRQ_SCRIPTLET && !(info->infolevel & INFRQ_SCRIPTLET)) {
+ snprintf(path, PATH_MAX, "%sinstall", pkgpath);
+ if(access(path, F_OK) == 0) {
+ info->scriptlet = 1;
+ }
+ }
+
+ /* internal */
+ info->infolevel |= inforeq;
+
+ free(pkgpath);
+ return(0);
+
+error:
+ free(pkgpath);
+ if(fp) {
+ fclose(fp);
+ }
+ return(-1);
+}
+
+int _alpm_local_db_prepare(pmdb_t *db, pmpkg_t *info)
+{
+ mode_t oldmask;
+ int retval = 0;
+ char *pkgpath = NULL;
+
+ if(checkdbdir(db) != 0) {
+ return(-1);
+ }
+
+ oldmask = umask(0000);
+ pkgpath = get_pkgpath(db, info);
+
+ if((retval = mkdir(pkgpath, 0755)) != 0) {
+ _alpm_log(PM_LOG_ERROR, _("could not create directory %s: %s\n"),
+ pkgpath, strerror(errno));
+ }
+
+ free(pkgpath);
+ umask(oldmask);
+
+ return(retval);
+}
+
+int _alpm_local_db_write(pmdb_t *db, pmpkg_t *info, pmdbinfrq_t inforeq)
+{
+ FILE *fp = NULL;
+ char path[PATH_MAX];
+ mode_t oldmask;
+ alpm_list_t *lp = NULL;
+ int retval = 0;
+ char *pkgpath = NULL;
+
+ ALPM_LOG_FUNC;
+
+ if(db == NULL || info == NULL) {
+ return(-1);
+ }
+
+ pkgpath = get_pkgpath(db, info);
+
+ /* make sure we have a sane umask */
+ oldmask = umask(0022);
+
+ if(strcmp(db->treename, "local") != 0) {
+ return(-1);
+ }
+
+ /* DESC */
+ if(inforeq & INFRQ_DESC) {
+ _alpm_log(PM_LOG_DEBUG, "writing %s-%s DESC information back to db\n",
+ info->name, info->version);
+ snprintf(path, PATH_MAX, "%sdesc", pkgpath);
+ if((fp = fopen(path, "w")) == NULL) {
+ _alpm_log(PM_LOG_ERROR, _("could not open file %s: %s\n"), path, strerror(errno));
+ retval = -1;
+ goto cleanup;
+ }
+ fprintf(fp, "%%NAME%%\n%s\n\n"
+ "%%VERSION%%\n%s\n\n", info->name, info->version);
+ if(info->desc) {
+ fprintf(fp, "%%DESC%%\n"
+ "%s\n\n", info->desc);
+ }
+ if(info->groups) {
+ fputs("%GROUPS%\n", fp);
+ for(lp = info->groups; lp; lp = lp->next) {
+ fprintf(fp, "%s\n", (char *)lp->data);
+ }
+ fprintf(fp, "\n");
+ }
+ if(info->replaces) {
+ fputs("%REPLACES%\n", fp);
+ for(lp = info->replaces; lp; lp = lp->next) {
+ fprintf(fp, "%s\n", (char *)lp->data);
+ }
+ fprintf(fp, "\n");
+ }
+ if(info->url) {
+ fprintf(fp, "%%URL%%\n"
+ "%s\n\n", info->url);
+ }
+ if(info->licenses) {
+ fputs("%LICENSE%\n", fp);
+ for(lp = info->licenses; lp; lp = lp->next) {
+ fprintf(fp, "%s\n", (char *)lp->data);
+ }
+ fprintf(fp, "\n");
+ }
+ if(info->arch) {
+ fprintf(fp, "%%ARCH%%\n"
+ "%s\n\n", info->arch);
+ }
+ if(info->builddate) {
+ fprintf(fp, "%%BUILDDATE%%\n"
+ "%ld\n\n", info->builddate);
+ }
+ if(info->installdate) {
+ fprintf(fp, "%%INSTALLDATE%%\n"
+ "%ld\n\n", info->installdate);
+ }
+ if(info->packager) {
+ fprintf(fp, "%%PACKAGER%%\n"
+ "%s\n\n", info->packager);
+ }
+ if(info->isize) {
+ /* only write installed size, csize is irrelevant once installed */
+ fprintf(fp, "%%SIZE%%\n"
+ "%jd\n\n", (intmax_t)info->isize);
+ }
+ if(info->reason) {
+ fprintf(fp, "%%REASON%%\n"
+ "%u\n\n", info->reason);
+ }
+ if(info->depends) {
+ fputs("%DEPENDS%\n", fp);
+ for(lp = info->depends; lp; lp = lp->next) {
+ char *depstring = alpm_dep_compute_string(lp->data);
+ fprintf(fp, "%s\n", depstring);
+ free(depstring);
+ }
+ fprintf(fp, "\n");
+ }
+ if(info->optdepends) {
+ fputs("%OPTDEPENDS%\n", fp);
+ for(lp = info->optdepends; lp; lp = lp->next) {
+ fprintf(fp, "%s\n", (char *)lp->data);
+ }
+ fprintf(fp, "\n");
+ }
+ if(info->conflicts) {
+ fputs("%CONFLICTS%\n", fp);
+ for(lp = info->conflicts; lp; lp = lp->next) {
+ fprintf(fp, "%s\n", (char *)lp->data);
+ }
+ fprintf(fp, "\n");
+ }
+ if(info->provides) {
+ fputs("%PROVIDES%\n", fp);
+ for(lp = info->provides; lp; lp = lp->next) {
+ fprintf(fp, "%s\n", (char *)lp->data);
+ }
+ fprintf(fp, "\n");
+ }
+
+ fclose(fp);
+ fp = NULL;
+ }
+
+ /* FILES */
+ if(inforeq & INFRQ_FILES) {
+ _alpm_log(PM_LOG_DEBUG, "writing %s-%s FILES information back to db\n",
+ info->name, info->version);
+ snprintf(path, PATH_MAX, "%sfiles", pkgpath);
+ if((fp = fopen(path, "w")) == NULL) {
+ _alpm_log(PM_LOG_ERROR, _("could not open file %s: %s\n"), path, strerror(errno));
+ retval = -1;
+ goto cleanup;
+ }
+ if(info->files) {
+ fprintf(fp, "%%FILES%%\n");
+ for(lp = info->files; lp; lp = lp->next) {
+ fprintf(fp, "%s\n", (char *)lp->data);
+ }
+ fprintf(fp, "\n");
+ }
+ if(info->backup) {
+ fprintf(fp, "%%BACKUP%%\n");
+ for(lp = info->backup; lp; lp = lp->next) {
+ fprintf(fp, "%s\n", (char *)lp->data);
+ }
+ fprintf(fp, "\n");
+ }
+ fclose(fp);
+ fp = NULL;
+ }
+
+ /* INSTALL */
+ /* nothing needed here (script is automatically extracted) */
+
+cleanup:
+ umask(oldmask);
+ free(pkgpath);
+
+ if(fp) {
+ fclose(fp);
+ }
+
+ return(retval);
+}
+
+int _alpm_local_db_remove(pmdb_t *db, pmpkg_t *info)
+{
+ int ret = 0;
+ char *pkgpath = NULL;
+
+ ALPM_LOG_FUNC;
+
+ if(db == NULL || info == NULL) {
+ RET_ERR(PM_ERR_DB_NULL, -1);
+ }
+
+ pkgpath = get_pkgpath(db, info);
+
+ ret = _alpm_rmrf(pkgpath);
+ free(pkgpath);
+ if(ret != 0) {
+ ret = -1;
+ }
+ return(ret);
+}
+
+static int local_db_version(pmdb_t *db)
+{
+ struct dirent *ent = NULL;
+ const char *dbpath;
+ DIR *dbdir;
+ int version;
+
+ dbpath = _alpm_db_path(db);
+ if(dbpath == NULL) {
+ RET_ERR(PM_ERR_DB_OPEN, -1);
+ }
+ dbdir = opendir(dbpath);
+ if(dbdir == NULL) {
+ if(errno == ENOENT) {
+ /* database dir doesn't exist yet */
+ version = 2;
+ goto done;
+ } else {
+ RET_ERR(PM_ERR_DB_OPEN, -1);
+ }
+ }
+
+ while((ent = readdir(dbdir)) != NULL) {
+ const char *name = ent->d_name;
+ char path[PATH_MAX];
+
+ if(strcmp(name, ".") == 0 || strcmp(name, "..") == 0) {
+ continue;
+ }
+ if(!is_dir(dbpath, ent)) {
+ continue;
+ }
+
+ snprintf(path, PATH_MAX, "%s%s/depends", dbpath, name);
+ if(access(path, F_OK) == 0) {
+ /* we found a depends file- bail */
+ version = 1;
+ goto done;
+ }
+ }
+ /* we found no depends file after full scan */
+ version = 2;
+
+done:
+ if(dbdir) {
+ closedir(dbdir);
+ }
+
+ _alpm_log(PM_LOG_DEBUG, "local database version %d\n", version);
+ return(version);
+}
+
+struct db_operations local_db_ops = {
+ .populate = local_db_populate,
+ .unregister = _alpm_db_unregister,
+ .version = local_db_version,
+};
+
+pmdb_t *_alpm_db_register_local(void)
+{
+ pmdb_t *db;
+
+ ALPM_LOG_FUNC;
+
+ _alpm_log(PM_LOG_DEBUG, "registering local database\n");
+
+ db = _alpm_db_new("local", 1);
+ db->ops = &local_db_ops;
+ if(db == NULL) {
+ RET_ERR(PM_ERR_DB_CREATE, NULL);
+ }
+
+ handle->db_local = db;
+ return(db);
+}
+
+/* vim: set ts=2 sw=2 noet: */

Copyright © 2002-2022 Judd Vinet and Aaron Griffin. Copyright © 2022 Erich Eckner.
The Arch Linux name and logo are recognized trademarks. Some rights reserved. The registered trademark Linux® is used pursuant to a sublicense from LMI, the exclusive licensee of Linus Torvalds, owner of the mark on a world-wide basis.