diff options
Diffstat (limited to 'lib/libc/stdio/wbuf.c')
| -rw-r--r-- | lib/libc/stdio/wbuf.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/libc/stdio/wbuf.c b/lib/libc/stdio/wbuf.c index 3f697e2..5bc3c4d 100644 --- a/lib/libc/stdio/wbuf.c +++ b/lib/libc/stdio/wbuf.c @@ -36,6 +36,7 @@ static char sccsid[] = "@(#)wbuf.c 8.1 (Berkeley) 6/4/93"; #include <sys/cdefs.h> __FBSDID("$FreeBSD$"); +#include <errno.h> #include <stdio.h> #include "local.h" @@ -59,8 +60,10 @@ __swbuf(int c, FILE *fp) * calls might wrap _w from negative to positive. */ fp->_w = fp->_lbfsize; - if (prepwrite(fp) != 0) + if (prepwrite(fp) != 0) { + errno = EBADF; return (EOF); + } c = (unsigned char)c; ORIENT(fp, -1); |
