diff options
Diffstat (limited to 'lib/libc/stdio/vsnprintf.c')
| -rw-r--r-- | lib/libc/stdio/vsnprintf.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/lib/libc/stdio/vsnprintf.c b/lib/libc/stdio/vsnprintf.c index 8d824fe594b8..738dd212f318 100644 --- a/lib/libc/stdio/vsnprintf.c +++ b/lib/libc/stdio/vsnprintf.c @@ -39,10 +39,11 @@ static char sccsid[] = "@(#)vsnprintf.c 8.1 (Berkeley) 6/4/93"; #endif static const char rcsid[] = - "$Id: vsnprintf.c,v 1.6 1997/12/24 12:31:32 ache Exp $"; + "$Id: vsnprintf.c,v 1.7 1997/12/24 14:32:40 ache Exp $"; #endif /* LIBC_SCCS and not lint */ #include <stdio.h> +#include <limits.h> int vsnprintf(str, n, fmt, ap) @@ -54,16 +55,15 @@ vsnprintf(str, n, fmt, ap) int ret; FILE f; - if ((int)n < 1) + if (n == 0) + return (0); + if (--n > INT_MAX) return (EOF); - n--; f._file = -1; f._flags = __SWR | __SSTR; f._bf._base = f._p = (unsigned char *)str; f._bf._size = f._w = n; ret = vfprintf(&f, fmt, ap); *f._p = 0; - if (ret == EOF) - return (ret); return (ret > (int)n ? n : ret); } |