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 /* 23 * Copyright (c) 1996, by Sun Microsystems, Inc. 24 * All rights reserved. 25 */ 26 27 /* 28 * MKS library 29 * Copyright 1985, 1992 by Mortice Kern Systems Inc. All rights reserved. 30 * 31 */ 32 #ifdef M_RCSID 33 #ifndef lint 34 static char rcsID[] = "$Header: /rd/src/libc/gen/rcs/eprintf.c 1.17 1994/06/17 19:42:34 hilary Exp $"; 35 #endif 36 #endif 37 38 #include <mks.h> 39 #include <stdio.h> 40 #include <stdarg.h> 41 #include <errno.h> 42 #include <string.h> 43 44 char *_cmdname; 45 46 /*f 47 * print error message followed by errno value. 48 * The value of errno is guaranteed to be restored on exit. 49 */ 50 /* VARARGS0 */ 51 LDEFN int 52 eprintf VARARG1(const char *, fmt) 53 { 54 va_list args; 55 register int saveerrno = errno; 56 register int nprf = 0; 57 char *str; 58 59 if (_cmdname != NULL) 60 nprf += fprintf(stderr, "%s: ", _cmdname); 61 va_start(args, fmt); 62 nprf += vfprintf(stderr, fmt, args); 63 va_end(args); 64 str = strerror(saveerrno); 65 if (*str == '\0') 66 nprf += fprintf(stderr, ": error %d\n", saveerrno); 67 else 68 nprf += fprintf(stderr,": %s\n", str); 69 errno = saveerrno; 70 return (nprf); 71 } 72