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- /* This is file PERROR.C */
- /* This file may have been modified by DJ Delorie (Jan 1991). If so,
- ** these modifications are Coyright (C) 1993 DJ Delorie, 24 Kirsten Ave,
- ** Rochester NH, 03867-2954, USA.
- */
-
- /*
- * Copyright (c) 1988 Regents of the University of California.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms are permitted
- * provided that: (1) source distributions retain this entire copyright
- * notice and comment, and (2) distributions including binaries display
- * the following acknowledgement: ``This product includes software
- * developed by the University of California, Berkeley and its contributors''
- * in the documentation or other materials provided with the distribution
- * and in all advertising materials mentioning features or use of this
- * software. Neither the name of the University nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- */
-
- #if defined(LIBC_SCCS) && !defined(lint)
- static char sccsid[] = "@(#)perror.c 5.9 (Berkeley) 6/1/90";
- #endif /* LIBC_SCCS and not lint */
-
- #include <sys/types.h>
- #include <sys/uio.h>
-
- perror(s)
- char *s;
- {
- extern int errno;
- register struct iovec *v;
- struct iovec iov[4];
- char *strerror();
-
- 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 = strerror(errno);
- v->iov_len = strlen(v->iov_base);
- v++;
- v->iov_base = "\n";
- v->iov_len = 1;
- (void)writev(2, iov, (v - iov) + 1);
- }
-