[pacman-dev] [PATCH] Always use proper error code in alpm_initialize.

[Tobias Stoeckmann]

In out of memory conditions, an undefined error value is written
into *err, because myerr is never explicitly set in these cases.

I have also converted a calloc into a MALLOC call, because the memory
will be properly filled by the snprintf call right after it.

Signed-off-by: Tobias Stoeckmann <tobias at stoeckmann.org>
---
 lib/libalpm/alpm.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/lib/libalpm/alpm.c b/lib/libalpm/alpm.c
index 6f02913..6b7fa7a 100644
--- a/lib/libalpm/alpm.c
+++ b/lib/libalpm/alpm.c
@@ -55,8 +55,7 @@ alpm_handle_t SYMEXPORT *alpm_initialize(const char *root, const char *dbpath,
 	alpm_handle_t *myhandle = _alpm_handle_new();
 
 	if(myhandle == NULL) {
-		myerr = ALPM_ERR_MEMORY;
-		goto cleanup;
+		goto nomem;
 	}
 	if((myerr = _alpm_set_directory_option(root, &(myhandle->root), 1))) {
 		goto cleanup;
@@ -68,15 +67,15 @@ alpm_handle_t SYMEXPORT *alpm_initialize(const char *root, const char *dbpath,
 	/* to contatenate myhandle->root (ends with a slash) with SYSHOOKDIR (starts
 	 * with a slash) correctly, we skip SYSHOOKDIR[0]; the regular +1 therefore
 	 * disappears from the allocation */
-	MALLOC(hookdir, strlen(myhandle->root) + strlen(SYSHOOKDIR), goto cleanup);
+	MALLOC(hookdir, strlen(myhandle->root) + strlen(SYSHOOKDIR), goto nomem);
 	sprintf(hookdir, "%s%s", myhandle->root, SYSHOOKDIR + 1);
 	myhandle->hookdirs = alpm_list_add(NULL, hookdir);
 
 	/* set default database extension */
-	STRDUP(myhandle->dbext, ".db", goto cleanup);
+	STRDUP(myhandle->dbext, ".db", goto nomem);
 
 	lockfilelen = strlen(myhandle->dbpath) + strlen(lf) + 1;
-	myhandle->lockfile = calloc(lockfilelen, sizeof(char));
+	MALLOC(myhandle->lockfile, lockfilelen, goto nomem);
 	snprintf(myhandle->lockfile, lockfilelen, "%s%s", myhandle->dbpath, lf);
 
 	if(_alpm_db_register_local(myhandle) == NULL) {
@@ -90,9 +89,11 @@ alpm_handle_t SYMEXPORT *alpm_initialize(const char *root, const char *dbpath,
 
 	return myhandle;
 
+nomem:
+	myerr = ALPM_ERR_MEMORY;
 cleanup:
 	_alpm_handle_free(myhandle);
-	if(err && myerr) {
+	if(err) {
 		*err = myerr;
 	}
 	return NULL;
-- 
2.8.3