From ee015f086f3c40390659bbc0129b7c08ffd0ed5f Mon Sep 17 00:00:00 2001 From: Dan McGee Date: Tue, 14 Jun 2011 10:01:08 -0500 Subject: Ensure handle is valid and pm_errno is reset when calling into API We didn't do due diligence before and ensure prior pm_errno values weren't influencing what happened in further ALPM calls. I observed one case of early setup code setting pm_errno to PM_ERR_WRONG_ARGS and that flag persisting the entire time we were calling library code. Add a new CHECK_HANDLE() macro that does two things: 1) ensures the handle variable passed to it is non-NULL and 2) clears any existing pm_errno flag set on the handle. This macro can replace many places we used the ASSERT(handle != NULL, ...) pattern before. Several other other places only need a simple 'set to zero' of the pm_errno field. Signed-off-by: Dan McGee --- lib/libalpm/sync.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'lib/libalpm/sync.c') diff --git a/lib/libalpm/sync.c b/lib/libalpm/sync.c index d65f5e20..05735730 100644 --- a/lib/libalpm/sync.c +++ b/lib/libalpm/sync.c @@ -55,11 +55,12 @@ */ pmpkg_t SYMEXPORT *alpm_sync_newversion(pmpkg_t *pkg, alpm_list_t *dbs_sync) { - ASSERT(pkg != NULL, return NULL); - alpm_list_t *i; pmpkg_t *spkg = NULL; + ASSERT(pkg != NULL, return NULL); + pkg->handle->pm_errno = 0; + for(i = dbs_sync; !spkg && i; i = i->next) { spkg = _alpm_db_get_pkgfromcache(i->data, alpm_pkg_get_name(pkg)); } @@ -89,7 +90,7 @@ int SYMEXPORT alpm_sync_sysupgrade(pmhandle_t *handle, int enable_downgrade) pmdb_t *db_local; alpm_list_t *dbs_sync; - ASSERT(handle != NULL, return -1); + CHECK_HANDLE(handle, return -1); trans = handle->trans; db_local = handle->db_local; dbs_sync = handle->dbs_sync; -- cgit v1.2.3-24-g4f1b