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authorDan McGee <dan@archlinux.org>2011-08-19 11:06:55 -0500
committerDan McGee <dan@archlinux.org>2011-08-19 11:09:57 -0500
commit6d544984f2418ea34caab4c433580487b760362a (patch)
treecf0510b97a6495587c87598a70bf8761189f5c32 /lib/libalpm/add.c
parent9934b3bd345011eef6a96249d8d90de594c04cd0 (diff)
Be more robust when copying package data
This changes the signature of _alpm_pkg_dup() to return an integer error code and provide the new package in a passed pointer argument. All callers are now more robust with checking the return value of this function to ensure a fatal error did not occur. We allow load failures to proceed as otherwise we have a chicken and egg problem- if a 'desc' local database entry is missing, the best way of restoring said file is `pacman -Sf --dbonly packagename`. This patch fixes a segfault that was occurring in this case. Fixes the segfault reported in FS#25667. Signed-off-by: Dan McGee <dan@archlinux.org>
Diffstat (limited to 'lib/libalpm/add.c')
-rw-r--r--lib/libalpm/add.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/lib/libalpm/add.c b/lib/libalpm/add.c
index 8bbf1574..cb8551e8 100644
--- a/lib/libalpm/add.c
+++ b/lib/libalpm/add.c
@@ -468,19 +468,22 @@ static int commit_single_pkg(alpm_handle_t *handle, alpm_pkg_t *newpkg,
is_upgrade = 1;
/* we'll need to save some record for backup checks later */
- oldpkg = _alpm_pkg_dup(local);
+ if(_alpm_pkg_dup(local, &oldpkg) == -1) {
+ ret = -1;
+ goto cleanup;
+ }
- EVENT(trans, ALPM_TRANS_EVT_UPGRADE_START, newpkg, oldpkg);
+ EVENT(trans, ALPM_TRANS_EVT_UPGRADE_START, newpkg, local);
_alpm_log(handle, ALPM_LOG_DEBUG, "upgrading package %s-%s\n",
newpkg->name, newpkg->version);
/* copy over the install reason */
- newpkg->reason = alpm_pkg_get_reason(oldpkg);
+ newpkg->reason = alpm_pkg_get_reason(local);
/* pre_upgrade scriptlet */
if(alpm_pkg_has_scriptlet(newpkg) && !(trans->flags & ALPM_TRANS_FLAG_NOSCRIPTLET)) {
_alpm_runscriptlet(handle, newpkg->origin_data.file,
- "pre_upgrade", newpkg->version, oldpkg->version);
+ "pre_upgrade", newpkg->version, local->version);
}
} else {
is_upgrade = 0;