From 0966c33a72ce172526762ac988ee6edbbba07b52 Mon Sep 17 00:00:00 2001 From: Xavier Chantry Date: Fri, 30 May 2008 08:52:27 +0200 Subject: Get rid of double / in database paths. Errors like the following one happen regularly (for unknown reasons...) : error: could not open file /var/lib/pacman/local//glibc-2.7-9/depends: No such file or directory Anyway, every time an user reported an error like that, it always seemed like he thought the error was caused by the double /, which is obviously wrong. Since db->path always include a trailing /, there is no need to add one when concatenating paths in be_files.c or add.c. Additionally, some static strings were switched to dynamic. And the computation of the "dbpath"/"pkgname"-"pkgversion" was refactored in db_read, db_write and db_remove with a get_pkgpath static function. Signed-off-by: Xavier Chantry Signed-off-by: Dan McGee --- lib/libalpm/be_files.c | 90 ++++++++++++++++++++++++++++++++++---------------- 1 file changed, 61 insertions(+), 29 deletions(-) (limited to 'lib/libalpm/be_files.c') diff --git a/lib/libalpm/be_files.c b/lib/libalpm/be_files.c index dc644cea..12c60b24 100644 --- a/lib/libalpm/be_files.c +++ b/lib/libalpm/be_files.c @@ -123,9 +123,11 @@ int setlastupdate(const pmdb_t *db, time_t time) int SYMEXPORT alpm_db_update(int force, pmdb_t *db) { alpm_list_t *lp; - char path[PATH_MAX]; + char *dbfile, *dbfilepath; time_t newmtime = 0, lastupdate = 0; const char *dbpath; + size_t len; + int ret; ALPM_LOG_FUNC; @@ -154,11 +156,15 @@ int SYMEXPORT alpm_db_update(int force, pmdb_t *db) } } - snprintf(path, PATH_MAX, "%s" DBEXT, db->treename); + len = strlen(db->treename) + strlen(DBEXT) + 1; + MALLOC(dbfile, len, RET_ERR(PM_ERR_MEMORY, -1)); + sprintf(dbfile, "%s" DBEXT, db->treename); + dbpath = alpm_option_get_dbpath(); - ret = _alpm_download_single_file(path, db->servers, dbpath, + ret = _alpm_download_single_file(dbfile, db->servers, dbpath, lastupdate, &newmtime); + free(dbfile); if(ret == 1) { /* mtimes match, do nothing */ @@ -169,9 +175,6 @@ int SYMEXPORT alpm_db_update(int force, pmdb_t *db) _alpm_log(PM_LOG_DEBUG, "failed to sync db: %s\n", alpm_strerrorlast()); return(-1); } else { - /* form the path to the db location */ - snprintf(path, PATH_MAX, "%s%s" DBEXT, dbpath, db->treename); - /* remove the old dir */ _alpm_log(PM_LOG_DEBUG, "flushing database %s\n", db->path); for(lp = _alpm_db_get_pkgcache(db); lp; lp = lp->next) { @@ -186,11 +189,19 @@ int SYMEXPORT alpm_db_update(int force, pmdb_t *db) /* Cache needs to be rebuilt */ _alpm_db_free_pkgcache(db); + /* form the path to the db location */ + len = strlen(dbpath) + strlen(db->treename) + strlen(DBEXT) + 1; + MALLOC(dbfilepath, len, RET_ERR(PM_ERR_MEMORY, -1)); + sprintf(dbfilepath, "%s%s" DBEXT, dbpath, db->treename); + /* uncompress the sync database */ - if(_alpm_unpack(path, db->path, NULL)) { + ret = _alpm_unpack(dbfilepath, db->path, NULL); + if(ret) { + free(dbfilepath); RET_ERR(PM_ERR_SYSTEM, -1); } - unlink(path); + unlink(dbfilepath); + free(dbfilepath); /* if we have a new mtime, set the DB last update value */ if(newmtime) { @@ -293,7 +304,7 @@ int _alpm_db_populate(pmdb_t *db) continue; } /* stat the entry, make sure it's a directory */ - snprintf(path, PATH_MAX, "%s/%s", db->path, name); + snprintf(path, PATH_MAX, "%s%s", db->path, name); if(stat(path, &sbuf) != 0 || !S_ISDIR(sbuf.st_mode)) { continue; } @@ -329,12 +340,25 @@ int _alpm_db_populate(pmdb_t *db) 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; + + len = strlen(db->path) + strlen(info->name) + strlen(info->version) + 3; + MALLOC(pkgpath, len, RET_ERR(PM_ERR_MEMORY, NULL)); + sprintf(pkgpath, "%s%s-%s/", db->path, info->name, info->version); + return(pkgpath); +} + int _alpm_db_read(pmdb_t *db, pmpkg_t *info, pmdbinfrq_t inforeq) { FILE *fp = NULL; struct stat buf; char path[PATH_MAX]; char line[513]; + char *pkgpath = NULL; ALPM_LOG_FUNC; @@ -367,17 +391,18 @@ int _alpm_db_read(pmdb_t *db, pmpkg_t *info, pmdbinfrq_t inforeq) /* clear out 'line', to be certain - and to make valgrind happy */ memset(line, 0, 513); - snprintf(path, PATH_MAX, "%s/%s-%s", db->path, info->name, info->version); - if(stat(path, &buf)) { + pkgpath = get_pkgpath(db, info); + + if(stat(pkgpath, &buf)) { /* 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); - return(-1); + goto error; } /* DESC */ if(inforeq & INFRQ_DESC) { - snprintf(path, PATH_MAX, "%s/%s-%s/desc", db->path, info->name, info->version); + 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; @@ -521,7 +546,7 @@ int _alpm_db_read(pmdb_t *db, pmpkg_t *info, pmdbinfrq_t inforeq) /* FILES */ if(inforeq & INFRQ_FILES) { - snprintf(path, PATH_MAX, "%s/%s-%s/files", db->path, info->name, info->version); + 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; @@ -548,7 +573,7 @@ int _alpm_db_read(pmdb_t *db, pmpkg_t *info, pmdbinfrq_t inforeq) /* DEPENDS */ if(inforeq & INFRQ_DEPENDS) { - snprintf(path, PATH_MAX, "%s/%s-%s/depends", db->path, info->name, info->version); + snprintf(path, PATH_MAX, "%sdepends", pkgpath); if((fp = fopen(path, "r")) == NULL) { _alpm_log(PM_LOG_ERROR, _("could not open file %s: %s\n"), path, strerror(errno)); goto error; @@ -587,8 +612,7 @@ int _alpm_db_read(pmdb_t *db, pmpkg_t *info, pmdbinfrq_t inforeq) /* DELTAS */ if(inforeq & INFRQ_DELTAS) { - snprintf(path, PATH_MAX, "%s/%s-%s/deltas", db->path, - info->name, info->version); + snprintf(path, PATH_MAX, "%sdeltas", pkgpath); if((fp = fopen(path, "r"))) { while(!feof(fp)) { fgets(line, 255, fp); @@ -606,7 +630,7 @@ int _alpm_db_read(pmdb_t *db, pmpkg_t *info, pmdbinfrq_t inforeq) /* INSTALL */ if(inforeq & INFRQ_SCRIPTLET) { - snprintf(path, PATH_MAX, "%s/%s-%s/install", db->path, info->name, info->version); + snprintf(path, PATH_MAX, "%sinstall", pkgpath); if(!stat(path, &buf)) { info->scriptlet = 1; } @@ -615,9 +639,11 @@ int _alpm_db_read(pmdb_t *db, pmpkg_t *info, pmdbinfrq_t inforeq) /* internal */ info->infolevel |= inforeq; + free(pkgpath); return(0); error: + free(pkgpath); if(fp) { fclose(fp); } @@ -632,6 +658,7 @@ int _alpm_db_write(pmdb_t *db, pmpkg_t *info, pmdbinfrq_t inforeq) alpm_list_t *lp = NULL; int retval = 0; int local = 0; + char *pkgpath = NULL; ALPM_LOG_FUNC; @@ -639,9 +666,10 @@ int _alpm_db_write(pmdb_t *db, pmpkg_t *info, pmdbinfrq_t inforeq) return(-1); } - snprintf(path, PATH_MAX, "%s/%s-%s", db->path, info->name, info->version); + pkgpath = get_pkgpath(db, info); + oldmask = umask(0000); - mkdir(path, 0755); + mkdir(pkgpath, 0755); /* make sure we have a sane umask */ umask(0022); @@ -653,7 +681,7 @@ int _alpm_db_write(pmdb_t *db, pmpkg_t *info, pmdbinfrq_t inforeq) 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, "%s/%s-%s/desc", db->path, 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; @@ -741,7 +769,7 @@ int _alpm_db_write(pmdb_t *db, pmpkg_t *info, pmdbinfrq_t inforeq) if(local && (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, "%s/%s-%s/files", db->path, 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; @@ -769,7 +797,7 @@ int _alpm_db_write(pmdb_t *db, pmpkg_t *info, pmdbinfrq_t inforeq) if(inforeq & INFRQ_DEPENDS) { _alpm_log(PM_LOG_DEBUG, "writing %s-%s DEPENDS information back to db\n", info->name, info->version); - snprintf(path, PATH_MAX, "%s/%s-%s/depends", db->path, info->name, info->version); + snprintf(path, PATH_MAX, "%sdepends", pkgpath); if((fp = fopen(path, "w")) == NULL) { _alpm_log(PM_LOG_ERROR, _("could not open file %s: %s\n"), path, strerror(errno)); retval = -1; @@ -814,6 +842,7 @@ int _alpm_db_write(pmdb_t *db, pmpkg_t *info, pmdbinfrq_t inforeq) cleanup: umask(oldmask); + free(pkgpath); if(fp) { fclose(fp); @@ -824,7 +853,8 @@ cleanup: int _alpm_db_remove(pmdb_t *db, pmpkg_t *info) { - char path[PATH_MAX]; + int ret = 0; + char *pkgpath = NULL; ALPM_LOG_FUNC; @@ -832,12 +862,14 @@ int _alpm_db_remove(pmdb_t *db, pmpkg_t *info) RET_ERR(PM_ERR_DB_NULL, -1); } - snprintf(path, PATH_MAX, "%s%s-%s", db->path, info->name, info->version); - if(_alpm_rmrf(path) == -1) { - return(-1); - } + pkgpath = get_pkgpath(db, info); - return(0); + ret = _alpm_rmrf(pkgpath); + free(pkgpath); + if(ret != 0) { + ret = -1; + } + return(ret); } /* vim: set ts=2 sw=2 noet: */ -- cgit v1.2.3