diff options
| author |   tholo <tholo@openbsd.org> | 1996-10-26 06:58:58 +0000 |
|---|---|---|
| committer | tholo <tholo@openbsd.org> | 1996-10-26 06:58:58 +0000 |
| commit | 4eeaa86e7e174943a727c537bf918959ccb96bc5 (patch) | |
| tree | bf72f3e30dbdc0c0c56eeb6138a45668b3322933 /lib/libc/stdio/fvwrite.c | |
| parent | Define _POSIX_VDISABLE as (0377), not '\377' (diff) | |
| download | wireguard-openbsd-4eeaa86e7e174943a727c537bf918959ccb96bc5.tar.xz wireguard-openbsd-4eeaa86e7e174943a727c537bf918959ccb96bc5.zip | |
Set errno when trying to write to a read-only stream
Diffstat (limited to 'lib/libc/stdio/fvwrite.c')
| -rw-r--r-- | lib/libc/stdio/fvwrite.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/lib/libc/stdio/fvwrite.c b/lib/libc/stdio/fvwrite.c index 029e8b184ca..aa4108b16a1 100644 --- a/lib/libc/stdio/fvwrite.c +++ b/lib/libc/stdio/fvwrite.c @@ -35,7 +35,7 @@ */ #if defined(LIBC_SCCS) && !defined(lint) -static char rcsid[] = "$OpenBSD: fvwrite.c,v 1.2 1996/08/19 08:32:49 tholo Exp $"; +static char rcsid[] = "$OpenBSD: fvwrite.c,v 1.3 1996/10/26 06:58:58 tholo Exp $"; #endif /* LIBC_SCCS and not lint */ #include <stdio.h> @@ -63,8 +63,10 @@ __sfvwrite(fp, uio) if ((len = uio->uio_resid) == 0) return (0); /* make sure we can write */ - if (cantwrite(fp)) + if (cantwrite(fp)) { + errno = EBADF; return (EOF); + } #define MIN(a, b) ((a) < (b) ? (a) : (b)) #define COPY(n) (void)memcpy((void *)fp->_p, (void *)p, (size_t)(n)) |