1 files changed, 15 insertions, 8 deletions

diff --git a/lib/libalpm/conflict.c b/lib/libalpm/conflict.c
index 32f6f303..5703aba8 100644
--- a/lib/libalpm/conflict.c
+++ b/lib/libalpm/conflict.c
@@ -318,12 +318,16 @@ const alpm_file_t *_alpm_filelist_contains(alpm_filelist_t *filelist,
 		const char *name)
 {
 	size_t i;
-	const alpm_file_t *file = filelist->files;
-	for(i = 0; i < filelist->count; i++) {
+	const alpm_file_t *file;
+
+	if(!filelist) {
+		return NULL;
+	}
+
+	for(file = filelist->files, i = 0; i < filelist->count; file++, i++) {
 		if(strcmp(file->name, name) == 0) {
 			return file;
 		}
-		file++;
 	}
 	return NULL;
 }
@@ -383,11 +387,14 @@ alpm_list_t *_alpm_db_find_fileconflicts(alpm_handle_t *handle,
 	alpm_list_t *i, *conflicts = NULL;
 	size_t numtargs = alpm_list_count(upgrade);
 	size_t current;
+	size_t rootlen;
 
 	if(!upgrade) {
 		return NULL;
 	}
 
+	rootlen = strlen(handle->root);
+
 	/* TODO this whole function needs a huge change, which hopefully will
 	 * be possible with real transactions. Right now we only do half as much
 	 * here as we do when we actually extract files in add.c with our 12
@@ -461,8 +468,9 @@ alpm_list_t *_alpm_db_find_fileconflicts(alpm_handle_t *handle,
 			int resolved_conflict = 0;
 			struct stat lsbuf;
 			char path[PATH_MAX];
+			size_t pathlen;
 
-			snprintf(path, PATH_MAX, "%s%s", handle->root, filestr);
+			pathlen = snprintf(path, PATH_MAX, "%s%s", handle->root, filestr);
 
 			/* stat the file - if it exists, do some checks */
 			if(_alpm_lstat(path, &lsbuf) != 0) {
@@ -486,10 +494,10 @@ alpm_list_t *_alpm_db_find_fileconflicts(alpm_handle_t *handle,
 				/* if we made it to here, we want all subsequent path comparisons to
 				 * not include the trailing slash. This allows things like file ->
 				 * directory replacements. */
-				path[strlen(path) - 1] = '\0';
+				path[pathlen - 1] = '\0';
 			}
 
-			relative_path = path + strlen(handle->root);
+			relative_path = path + rootlen;
 
 			/* Check remove list (will we remove the conflicting local file?) */
 			for(k = remove; k && !resolved_conflict; k = k->next) {
@@ -542,9 +550,8 @@ alpm_list_t *_alpm_db_find_fileconflicts(alpm_handle_t *handle,
 			 * components can be safely checked as all directories are "unowned". */
 			if(!resolved_conflict && dbpkg && !S_ISLNK(lsbuf.st_mode)) {
 				char *rpath = calloc(PATH_MAX, sizeof(char));
-				const char *relative_rpath;
 				if(realpath(path, rpath)) {
-					relative_rpath = rpath + strlen(handle->root);
+					const char *relative_rpath = rpath + rootlen;
 					if(_alpm_filelist_contains(alpm_pkg_get_files(dbpkg), relative_rpath)) {
 						_alpm_log(handle, ALPM_LOG_DEBUG,
 								"package contained the resolved realpath\n");