hirc

commit ccc6a0eca3ad29a37df8e25129148ddea0449a4b
parent c01789e1a173145ccf3096889649d0cec7c940e9
Author: hhvn <dev@hhvn.uk>
Date:   Tue, 24 May 2022 21:13:53 +0100

stowc()/wctos(): fail gracefully on invalid string

Diffstat:
M
src/mem.c
 | 
2
++

1 file changed, 2 insertions(+), 0 deletions(-)
diff --git a/src/mem.c b/src/mem.c
@@ -103,6 +103,7 @@ stowc(char *str) {
 	if (!str) return NULL;
 
 	len = mbstowcs(NULL, str, 0) + 1;
+	if (!len) return NULL;
 	ret = emalloc(len * sizeof(wchar_t));
 	mbstowcs(ret, str, len);
 	return ret;
@@ -116,6 +117,7 @@ wctos(wchar_t *str) {
 	if (!str) return NULL;
 
 	len = wcstombs(NULL, str, 0) + 1;
+	if (!len) return NULL;
 	ret = emalloc(len);
 	wcstombs(ret, str, len);
 	return ret;