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authorLeah Rowe <leah@libreboot.org>2026-03-29 09:10:57 +0100
committerLeah Rowe <leah@libreboot.org>2026-03-29 09:18:36 +0100
commitc2a70b7de0e15dc80d5b56d438a6d4ed47647b44 (patch)
tree5c5281bb789f0ea9ab1d8766f5cea6e7182d431b /util/libreboot-utils/lib/string.c
parent45edcf33f7d4b2f405c0f59fccc71b6ac15f5c65 (diff)
libreboot-utils: simplify random tmpdir namegen
generalise it in rand.c because this logic will be useful for other programs in the future. Signed-off-by: Leah Rowe <leah@libreboot.org>
Diffstat (limited to 'util/libreboot-utils/lib/string.c')
-rw-r--r--util/libreboot-utils/lib/string.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/util/libreboot-utils/lib/string.c b/util/libreboot-utils/lib/string.c
index 6a372dcf..c3cf4519 100644
--- a/util/libreboot-utils/lib/string.c
+++ b/util/libreboot-utils/lib/string.c
@@ -19,6 +19,20 @@
#include "../include/common.h"
+void
+free_and_set_null(char **buf)
+{
+ if (buf == NULL)
+ err_exit(EFAULT,
+ "null ptr (to ptr for freeing) in free_and_set_null");
+
+ if (*buf == NULL)
+ return;
+
+ free(*buf);
+ *buf = NULL;
+}
+
/* safe(ish) malloc.
use this and free_and_set_null()