This fixes FS#14899. When running an -Sp operation without servers configured for a repository, we would segfault, so add an assert to the backend method returning the first server preventing a null pointer dereference. In addition, add a new error code to libalpm that indicates we have no servers configured for a repository. This makes -Sy and -S <package> operations fail gracefully and helpfully when a repo is set up with no servers, as the default mirrorlist in Arch is provided this way. Signed-off-by: Dan McGee --- lib/libalpm/alpm.h | 1 + lib/libalpm/db.c | 1 + lib/libalpm/dload.c | 2 ++ lib/libalpm/error.c | 2 ++ lib/libalpm/sync.c | 4 +++- src/pacman/sync.c | 10 +++++++++- 6 files changed, 18 insertions(+), 2 deletions(-) diff --git a/lib/libalpm/alpm.h b/lib/libalpm/alpm.h index 5cf1e94..1b67f8a 100644 --- a/lib/libalpm/alpm.h +++ b/lib/libalpm/alpm.h @@ -480,6 +480,7 @@ enum _pmerrno_t { PM_ERR_DB_REMOVE, /* Servers */ PM_ERR_SERVER_BAD_URL, + PM_ERR_SERVER_NONE, /* Transactions */ PM_ERR_TRANS_NOT_NULL, PM_ERR_TRANS_NULL, diff --git a/lib/libalpm/db.c b/lib/libalpm/db.c index 561967c..6749ab1 100644 --- a/lib/libalpm/db.c +++ b/lib/libalpm/db.c @@ -232,6 +232,7 @@ const char SYMEXPORT *alpm_db_get_url(const pmdb_t *db) /* Sanity checks */ ASSERT(handle != NULL, return(NULL)); ASSERT(db != NULL, return(NULL)); + ASSERT(db->servers != NULL, return(NULL)); url = (char*)db->servers->data; diff --git a/lib/libalpm/dload.c b/lib/libalpm/dload.c index 5b0a691..aec0b5c 100644 --- a/lib/libalpm/dload.c +++ b/lib/libalpm/dload.c @@ -388,6 +388,8 @@ int _alpm_download_single_file(const char *filename, alpm_list_t *i; int ret = -1; + ASSERT(servers != NULL, RET_ERR(PM_ERR_SERVER_NONE, -1)); + for(i = servers; i; i = i->next) { const char *server = i->data; char *fileurl = NULL; diff --git a/lib/libalpm/error.c b/lib/libalpm/error.c index fdff9ed..47e254e 100644 --- a/lib/libalpm/error.c +++ b/lib/libalpm/error.c @@ -84,6 +84,8 @@ const char SYMEXPORT *alpm_strerror(int err) /* Servers */ case PM_ERR_SERVER_BAD_URL: return _("invalid url for server"); + case PM_ERR_SERVER_NONE: + return _("no servers configured for repository"); /* Transactions */ case PM_ERR_TRANS_NOT_NULL: return _("transaction already initialized"); diff --git a/lib/libalpm/sync.c b/lib/libalpm/sync.c index abda147..519066c 100644 --- a/lib/libalpm/sync.c +++ b/lib/libalpm/sync.c @@ -777,7 +777,9 @@ int _alpm_sync_commit(pmtrans_t *trans, pmdb_t *db_local, alpm_list_t **data) if(_alpm_download_files(files, current->servers, cachedir)) { _alpm_log(PM_LOG_WARNING, _("failed to retrieve some files from %s\n"), current->treename); - pm_errno = PM_ERR_RETRIEVE; + if(pm_errno == 0) { + pm_errno = PM_ERR_RETRIEVE; + } goto error; } FREELIST(files); diff --git a/src/pacman/sync.c b/src/pacman/sync.c index 68fb81a..2e57b01 100644 --- a/src/pacman/sync.c +++ b/src/pacman/sync.c @@ -675,7 +675,15 @@ static int sync_trans(alpm_list_t *targets) for(i = packages; i; i = alpm_list_next(i)) { pmpkg_t *pkg = alpm_list_getdata(i); pmdb_t *db = alpm_pkg_get_db(pkg); - printf("%s/%s\n", alpm_db_get_url(db), alpm_pkg_get_filename(pkg)); + const char *dburl = alpm_db_get_url(db); + if(dburl) { + printf("%s/%s\n", dburl, alpm_pkg_get_filename(pkg)); + } else { + /* can't use WARNING here, we don't show warnings in -Sp... */ + pm_fprintf(stderr, PM_LOG_ERROR, _("no database for package: %s\n"), + alpm_pkg_get_name(pkg)); + } + } /* we are done */ goto cleanup; -- 1.6.3.2