They are placeholders, but important for things like trying to re-sync a database missing a signature. By using the alpm_db_valid() method at the right time, a client can take the appropriate action with these invalid databases as necessary.
In pacman's case, we disallow just about anything that involves looking at a sync database outside of an '-Sy' operation (although we do check the validity immediately after). A few operations are still permitted- '-Q' ops that don't touch sync databases as well as '-R'. Signed-off-by: Dan McGee <[email protected]> --- lib/libalpm/be_sync.c | 6 +----- src/pacman/database.c | 2 +- src/pacman/query.c | 7 ++----- src/pacman/remove.c | 2 +- src/pacman/sync.c | 21 ++++++++++----------- src/pacman/upgrade.c | 2 +- src/pacman/util.c | 27 ++++++++++++++++++++++++++- src/pacman/util.h | 3 ++- 8 files changed, 44 insertions(+), 26 deletions(-) diff --git a/lib/libalpm/be_sync.c b/lib/libalpm/be_sync.c index 6f4c36c..69c7e21 100644 --- a/lib/libalpm/be_sync.c +++ b/lib/libalpm/be_sync.c @@ -592,14 +592,10 @@ pmdb_t *_alpm_db_register_sync(pmhandle_t *handle, const char *treename, db->handle = handle; db->pgp_verify = level; - if(sync_db_validate(db)) { - _alpm_db_free(db); - return NULL; - } + sync_db_validate(db); handle->dbs_sync = alpm_list_add(handle->dbs_sync, db); return db; } - /* vim: set ts=2 sw=2 noet: */ diff --git a/src/pacman/database.c b/src/pacman/database.c index 292fa54..5a5c398 100644 --- a/src/pacman/database.c +++ b/src/pacman/database.c @@ -59,7 +59,7 @@ int pacman_database(alpm_list_t *targets) } /* Lock database */ - if(trans_init(0) == -1) { + if(trans_init(0, 0) == -1) { return 1; } diff --git a/src/pacman/query.c b/src/pacman/query.c index 76d9d73..938fff6 100644 --- a/src/pacman/query.c +++ b/src/pacman/query.c @@ -502,11 +502,8 @@ int pacman_query(alpm_list_t *targets) return ret; } - if(config->op_q_foreign) { - /* ensure we have at least one valid sync db set up */ - alpm_list_t *sync_dbs = alpm_option_get_syncdbs(config->handle); - if(sync_dbs == NULL || alpm_list_count(sync_dbs) == 0) { - pm_printf(PM_LOG_ERROR, _("no usable package repositories configured.\n")); + if(config->op_q_foreign || config->op_q_upgrade) { + if(check_syncdbs(1, 1)) { return 1; } } diff --git a/src/pacman/remove.c b/src/pacman/remove.c index 59698e7..595263a 100644 --- a/src/pacman/remove.c +++ b/src/pacman/remove.c @@ -81,7 +81,7 @@ int pacman_remove(alpm_list_t *targets) } /* Step 0: create a new transaction */ - if(trans_init(config->flags) == -1) { + if(trans_init(config->flags, 0) == -1) { return 1; } diff --git a/src/pacman/sync.c b/src/pacman/sync.c index 6d224e4..36c7799 100644 --- a/src/pacman/sync.c +++ b/src/pacman/sync.c @@ -283,7 +283,7 @@ static int sync_synctree(int level, alpm_list_t *syncs) alpm_list_t *i; int success = 0, ret; - if(trans_init(0) == -1) { + if(trans_init(0, 0) == -1) { return 0; } @@ -305,10 +305,6 @@ static int sync_synctree(int level, alpm_list_t *syncs) if(trans_release() == -1) { return 0; } - /* We should always succeed if at least one DB was upgraded - we may possibly - * fail later with unresolved deps, but that should be rare, and would be - * expected - */ if(!success) { pm_fprintf(stderr, PM_LOG_ERROR, _("failed to synchronize any databases\n")); } @@ -746,7 +742,7 @@ static int sync_trans(alpm_list_t *targets) alpm_list_t *i; /* Step 1: create a new transaction... */ - if(trans_init(config->flags) == -1) { + if(trans_init(config->flags, 1) == -1) { return 1; } @@ -900,7 +896,7 @@ int pacman_sync(alpm_list_t *targets) if(config->op_s_clean) { int ret = 0; - if(trans_init(0) == -1) { + if(trans_init(0, 0) == -1) { return 1; } @@ -915,13 +911,12 @@ int pacman_sync(alpm_list_t *targets) return ret; } - /* ensure we have at least one valid sync db set up */ - sync_dbs = alpm_option_get_syncdbs(config->handle); - if(sync_dbs == NULL || alpm_list_count(sync_dbs) == 0) { - pm_printf(PM_LOG_ERROR, _("no usable package repositories configured.\n")); + if(check_syncdbs(1, 0)) { return 1; } + sync_dbs = alpm_option_get_syncdbs(config->handle); + if(config->op_s_sync) { /* grab a fresh package list */ printf(_(":: Synchronizing package databases...\n")); @@ -931,6 +926,10 @@ int pacman_sync(alpm_list_t *targets) } } + if(check_syncdbs(1, 1)) { + return 1; + } + /* search for a package */ if(config->op_s_search) { return sync_search(sync_dbs, targets); diff --git a/src/pacman/upgrade.c b/src/pacman/upgrade.c index cdbbffe..ef273cf 100644 --- a/src/pacman/upgrade.c +++ b/src/pacman/upgrade.c @@ -67,7 +67,7 @@ int pacman_upgrade(alpm_list_t *targets) } /* Step 1: create a new transaction */ - if(trans_init(config->flags) == -1) { + if(trans_init(config->flags, 1) == -1) { return 1; } diff --git a/src/pacman/util.c b/src/pacman/util.c index 2388e5c..ce305a4 100644 --- a/src/pacman/util.c +++ b/src/pacman/util.c @@ -49,9 +49,12 @@ #include "callback.h" -int trans_init(pmtransflag_t flags) +int trans_init(pmtransflag_t flags, int check_valid) { int ret; + + check_syncdbs(0, check_valid); + if(config->print) { ret = alpm_trans_init(config->handle, flags, NULL, NULL, NULL); } else { @@ -100,6 +103,28 @@ int needs_root(void) } } +int check_syncdbs(int min_count, int check_valid) +{ + alpm_list_t *i, *sync_dbs; + sync_dbs = alpm_option_get_syncdbs(config->handle); + if(sync_dbs == NULL || alpm_list_count(sync_dbs) < min_count) { + pm_printf(PM_LOG_ERROR, _("no usable package repositories configured.\n")); + return 1; + } + if(check_valid) { + /* ensure all known dbs are valid */ + for(i = sync_dbs; i; i = alpm_list_next(i)) { + pmdb_t *db = i->data; + if(alpm_db_valid(db)) { + pm_printf(PM_LOG_ERROR, _("database '%s' is not valid (%s)\n"), + alpm_db_get_name(db), alpm_strerror(alpm_errno(config->handle))); + return 1; + } + } + } + return 0; +} + /* discard unhandled input on the terminal's input buffer */ static int flush_term_input(void) { #ifdef HAVE_TCFLUSH diff --git a/src/pacman/util.h b/src/pacman/util.h index 95c1ce9..a35f715 100644 --- a/src/pacman/util.h +++ b/src/pacman/util.h @@ -39,9 +39,10 @@ /* update speed for the fill_progress based functions */ #define UPDATE_SPEED_SEC 0.2f -int trans_init(pmtransflag_t flags); +int trans_init(pmtransflag_t flags, int check_valid); int trans_release(void); int needs_root(void); +int check_syncdbs(int min_count, int check_valid); int getcols(int def); int rmrf(const char *path); const char *mbasename(const char *path); -- 1.7.5.2
