1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 #pragma ident "%Z%%M% %I% %E% SMI" 23 /* from UCB 4.2 83/06/30 */ 24 /* 25 * Print the error indicated 26 * in the cerror cell. 27 */ 28 #include <sys/types.h> 29 #include <sys/uio.h> 30 31 extern int errno; 32 extern int sys_nerr; 33 extern char *sys_errlist[]; 34 extern int strlen(); 35 extern int writev(); 36 37 void 38 _perror(s) 39 char *s; 40 { 41 struct iovec iov[4]; 42 register struct iovec *v = iov; 43 44 if (s && *s) { 45 v->iov_base = s; 46 v->iov_len = strlen(s); 47 v++; 48 v->iov_base = ": "; 49 v->iov_len = 2; 50 v++; 51 } 52 v->iov_base = 53 (unsigned)errno < sys_nerr ? sys_errlist[errno] : "Unknown error"; 54 v->iov_len = strlen(v->iov_base); 55 v++; 56 v->iov_base = "\n"; 57 v->iov_len = 1; 58 writev(2, iov, (v - iov) + 1); 59 } 60