_perror.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/* from UCB 4.2 83/06/30 */
/*
* Print the error indicated
* in the cerror cell.
*/
#include <sys/types.h>
#include <sys/uio.h>
extern int errno;
extern int sys_nerr;
extern char *sys_errlist[];
extern int strlen();
extern int writev();
void
_perror(s)
char *s;
{
struct iovec iov[4];
register struct iovec *v = iov;
if (s && *s) {
v->iov_base = s;
v->iov_len = strlen(s);
v++;
v->iov_base = ": ";
v->iov_len = 2;
v++;
}
v->iov_base =
(unsigned)errno < sys_nerr ? sys_errlist[errno] : "Unknown error";
v->iov_len = strlen(v->iov_base);
v++;
v->iov_base = "\n";
v->iov_len = 1;
writev(2, iov, (v - iov) + 1);
}