From 6e1a12739841bc4f7d4e5a2fc8b36d72fc0e8cb2 Mon Sep 17 00:00:00 2001
From: Niki <david.roulet@solidaris.be>
Date: Mon, 24 Jun 2024 15:57:24 +0200
Subject: [PATCH] fix an error in strdup clone

---
 cstring.c | 4 +++-
 cutils.c  | 2 ++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/cstring.c b/cstring.c
index 58481ec..5a4d81a 100644
--- a/cstring.c
+++ b/cstring.c
@@ -590,7 +590,9 @@ void cstring_change_case(cstring_t *self, int up) {
 
 	size_t i = 0;
 	while (i < self->length) {
-		count = mbrtowc(&wide, self->string + i, self->length - i, &state_from);
+		count = mbrtowc(&wide, 
+				self->string + i, self->length - i, 
+				&state_from);
 
 		//incomplete (should not happen)
 		if (count == (size_t) -2) {
diff --git a/cutils.c b/cutils.c
index 4547c4b..87ffa9e 100644
--- a/cutils.c
+++ b/cutils.c
@@ -38,6 +38,8 @@ size_t strnlen(const char *s, size_t maxlen) {
 char *strdup(const char *source) {
 	size_t sz = strlen(source);
 	char *new = malloc((sz + 1) * sizeof(char));
+	if (!new)
+		return NULL;
 	strcpy(new, source);
 	return new;
 }
-- 
2.27.0