diff options
Diffstat (limited to 'lib/libc/stdio/vsnprintf.c')
| -rw-r--r-- | lib/libc/stdio/vsnprintf.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/lib/libc/stdio/vsnprintf.c b/lib/libc/stdio/vsnprintf.c index d2bad0f09aa7..82959d1d082c 100644 --- a/lib/libc/stdio/vsnprintf.c +++ b/lib/libc/stdio/vsnprintf.c @@ -41,6 +41,7 @@ static char sccsid[] = "@(#)vsnprintf.c 8.1 (Berkeley) 6/4/93"; #include <sys/cdefs.h> __FBSDID("$FreeBSD$"); +#include <errno.h> #include <limits.h> #include <stdio.h> #include "local.h" @@ -59,8 +60,11 @@ vsnprintf_l(char * __restrict str, size_t n, locale_t locale, on = n; if (n != 0) n--; - if (n > INT_MAX) - n = INT_MAX; + if (n > INT_MAX) { + errno = EOVERFLOW; + *str = '\0'; + return (EOF); + } /* Stdio internals do not deal correctly with zero length buffer */ if (n == 0) { if (on > 0) |