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-rw-r--r--lib/libalpm/diskspace.c14
1 files changed, 13 insertions, 1 deletions
diff --git a/lib/libalpm/diskspace.c b/lib/libalpm/diskspace.c
index d0f52a63..45908b22 100644
--- a/lib/libalpm/diskspace.c
+++ b/lib/libalpm/diskspace.c
@@ -179,8 +179,20 @@ static alpm_mountpoint_t *match_mount_point(const alpm_list_t *mount_points,
for(mp = mount_points; mp != NULL; mp = mp->next) {
alpm_mountpoint_t *data = mp->data;
+ /* first, check if the prefix matches */
if(strncmp(data->mount_dir, real_path, data->mount_dir_len) == 0) {
- return data;
+ /* now, the hard work- a file like '/etc/myconfig' shouldn't map to a
+ * mountpoint '/e', but only '/etc'. If the mountpoint ends in a trailing
+ * slash, we know we didn't have a mismatch, otherwise we have to do some
+ * more sanity checks. */
+ if(data->mount_dir[data->mount_dir_len - 1] == '/') {
+ return data;
+ } else if(strlen(real_path) >= data->mount_dir_len) {
+ const char next = real_path[data->mount_dir_len];
+ if(next == '/' || next == '\0') {
+ return data;
+ }
+ }
}
}