scc

commit 808c3af87431fa08f0184ece6cf81dc219277453
parent 66d454a379fe6f62be6ea422644651a5b8d510ae
Author: Roberto E. Vargas Caballero <k0ga@shike2.com>
Date:   Wed,  9 Nov 2022 21:07:51 +0100

libc/stdlib: Add internal mbstate in mbstowcs()

mbstowcs() is supposed to be thread safe and not dependant of the
state in mbsrtocws().

Diffstat:
M
src/libc/stdlib/mbstowcs.c
 | 
5
++++-

1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/src/libc/stdlib/mbstowcs.c b/src/libc/stdlib/mbstowcs.c
@@ -1,4 +1,5 @@
 #include <stdlib.h>
+#include <string.h>
 #include <wchar.h>
 
 #undef mbstowcs
@@ -6,5 +7,7 @@
 size_t
 mbstowcs(wchar_t *restrict dest, const char *restrict src, size_t n)
 {
-	return mbsrtowcs(dest, (void *) &src, n, NULL);
+	mbstate_t p;
+
+	return mbsrtowcs(dest, (void *) &src, n, memset(&p, 0, sizeof(p)));
 }