diff options
| -rw-r--r-- | lib/libc/stdio/fgets.3 | 8 | ||||
| -rw-r--r-- | lib/libc/stdio/fgets.c | 7 |
2 files changed, 11 insertions, 4 deletions
diff --git a/lib/libc/stdio/fgets.3 b/lib/libc/stdio/fgets.3 index d459f35958f..13b213088ef 100644 --- a/lib/libc/stdio/fgets.3 +++ b/lib/libc/stdio/fgets.3 @@ -1,4 +1,4 @@ -.\" $OpenBSD: fgets.3,v 1.28 2007/09/07 05:17:59 cloder Exp $ +.\" $OpenBSD: fgets.3,v 1.29 2009/06/02 22:28:18 ray Exp $ .\" .\" Copyright (c) 1990, 1991, 1993 .\" The Regents of the University of California. All rights reserved. @@ -31,7 +31,7 @@ .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF .\" SUCH DAMAGE. .\" -.Dd $Mdocdate: September 7 2007 $ +.Dd $Mdocdate: June 2 2009 $ .Dt FGETS 3 .Os .Sh NAME @@ -114,6 +114,10 @@ is 1. The given .Fa stream is not a readable stream. +.It Bq Er EINVAL +The given +.Fa size +is less than or equal to 0. .El .Pp The function diff --git a/lib/libc/stdio/fgets.c b/lib/libc/stdio/fgets.c index 92fdcf78ff5..536935256be 100644 --- a/lib/libc/stdio/fgets.c +++ b/lib/libc/stdio/fgets.c @@ -1,4 +1,4 @@ -/* $OpenBSD: fgets.c,v 1.10 2005/08/08 08:05:36 espie Exp $ */ +/* $OpenBSD: fgets.c,v 1.11 2009/06/02 22:28:18 ray Exp $ */ /*- * Copyright (c) 1990, 1993 * The Regents of the University of California. All rights reserved. @@ -31,6 +31,7 @@ * SUCH DAMAGE. */ +#include <errno.h> #include <stdio.h> #include <string.h> #include "local.h" @@ -48,8 +49,10 @@ fgets(char *buf, int n, FILE *fp) char *s; unsigned char *p, *t; - if (n <= 0) /* sanity check */ + if (n <= 0) { /* sanity check */ + errno = EINVAL; return (NULL); + } _SET_ORIENTATION(fp, -1); s = buf; |