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-rw-r--r--libc/stdlib/stdlib.c13
1 files changed, 10 insertions, 3 deletions
diff --git a/libc/stdlib/stdlib.c b/libc/stdlib/stdlib.c
index cc465e7a9..e9e6e1c32 100644
--- a/libc/stdlib/stdlib.c
+++ b/libc/stdlib/stdlib.c
@@ -25,6 +25,11 @@
*
* ATTENTION! ATTENTION! ATTENTION! ATTENTION! ATTENTION! */
+/* Oct 29, 2002
+ *
+ * Fix a couple of 'restrict' bugs in mbstowcs and wcstombs.
+ */
+
#define _ISOC99_SOURCE /* for ULLONG primarily... */
#define _GNU_SOURCE
#include <limits.h>
@@ -748,10 +753,10 @@ int wctomb(register char *__restrict s, wchar_t swc)
size_t mbstowcs(wchar_t * __restrict pwcs, const char * __restrict s, size_t n)
{
mbstate_t state;
+ const char *e = s; /* Needed because of restrict. */
state.mask = 0; /* Always start in initial shift state. */
-
- return mbsrtowcs(pwcs, &s, n, &state);
+ return mbsrtowcs(pwcs, &e, n, &state);
}
#endif
@@ -762,7 +767,9 @@ size_t mbstowcs(wchar_t * __restrict pwcs, const char * __restrict s, size_t n)
size_t wcstombs(char * __restrict s, const wchar_t * __restrict pwcs, size_t n)
{
- return wcsrtombs(s, &pwcs, n, NULL);
+ const wchar_t *e = pwcs; /* Needed because of restrict. */
+
+ return wcsrtombs(s, &e, n, NULL);
}
#endif