diff options
Diffstat (limited to 'lib/libc/stdio/vsnprintf.c')
| -rw-r--r-- | lib/libc/stdio/vsnprintf.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/lib/libc/stdio/vsnprintf.c b/lib/libc/stdio/vsnprintf.c index 8837c2e..ec13305 100644 --- a/lib/libc/stdio/vsnprintf.c +++ b/lib/libc/stdio/vsnprintf.c @@ -39,7 +39,7 @@ static char sccsid[] = "@(#)vsnprintf.c 8.1 (Berkeley) 6/4/93"; #endif static const char rcsid[] = - "$Id$"; + "$Id: vsnprintf.c,v 1.5 1997/02/22 15:02:45 peter Exp $"; #endif /* LIBC_SCCS and not lint */ #include <stdio.h> @@ -54,13 +54,18 @@ vsnprintf(str, n, fmt, ap) int ret; FILE f; + if (n == 0) + return (0); if ((int)n < 1) return (EOF); + n--; f._file = -1; f._flags = __SWR | __SSTR; f._bf._base = f._p = (unsigned char *)str; - f._bf._size = f._w = n - 1; + f._bf._size = f._w = n; ret = vfprintf(&f, fmt, ap); *f._p = 0; - return (ret); + if (ret == EOF) + return (ret); + return (ret > (int)n ? n : ret); } |
