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 (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright (c) 1991, 2010, Oracle and/or its affiliates. All rights reserved. 24 */ 25 26 #include <stdio.h> 27 #include <stdarg.h> 28 #include <errno.h> 29 30 #define NO_PERROR 0 31 #define PERROR 1 32 33 char *progname; 34 35 void 36 setpname(char *name) 37 { 38 register char *p = name, c; 39 40 if (p) 41 while (c = *p++) 42 if (c == '/') 43 name = p; 44 45 progname = name; 46 } 47 48 /* _error([no_perror, ] fmt [, arg ...]) */ 49 /*VARARGS*/ 50 int 51 _error(int do_perror, char *fmt, ...) 52 { 53 int saved_errno; 54 va_list ap; 55 56 saved_errno = errno; 57 58 /* 59 * flush all buffers 60 */ 61 (void) fflush(NULL); 62 if (progname) 63 (void) fprintf(stderr, "%s: ", progname); 64 65 va_start(ap, fmt); 66 (void) vfprintf(stderr, fmt, ap); 67 va_end(ap); 68 69 if (do_perror == NO_PERROR) 70 (void) fprintf(stderr, "\n"); 71 else { 72 (void) fprintf(stderr, ": "); 73 errno = saved_errno; 74 perror(""); 75 } 76 77 return (1); 78 } 79