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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/sync.c
parent9934b3bd345011eef6a96249d8d90de594c04cd0 (diff)
downloadpacman-6d544984f2418ea34caab4c433580487b760362a.tar.xz
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/sync.c')
-rw-r--r--lib/libalpm/sync.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/lib/libalpm/sync.c b/lib/libalpm/sync.c
index 6c30c948..e3e7fa90 100644
--- a/lib/libalpm/sync.c
+++ b/lib/libalpm/sync.c
@@ -558,8 +558,12 @@ int _alpm_sync_prepare(alpm_handle_t *handle, alpm_list_t **data)
for(j = spkg->removes; j; j = j->next) {
alpm_pkg_t *rpkg = j->data;
if(!_alpm_pkg_find(trans->remove, rpkg->name)) {
+ alpm_pkg_t *copy;
_alpm_log(handle, ALPM_LOG_DEBUG, "adding '%s' to remove list\n", rpkg->name);
- trans->remove = alpm_list_add(trans->remove, _alpm_pkg_dup(rpkg));
+ if(_alpm_pkg_dup(rpkg, &copy) == -1) {
+ return -1;
+ }
+ trans->remove = alpm_list_add(trans->remove, copy);
}
}
}