usr/src/cmd/rctladm/utils.c

   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) 2001, 2010, Oracle and/or its affiliates. All rights reserved.
  24  */
  25
  26 #include <sys/param.h>
  27 #include <libintl.h>
  28 #include <string.h>
  29 #include <stdlib.h>
  30 #include <stdarg.h>
  31 #include <stdio.h>
  32 #include <errno.h>
  33
  34 #include "utils.h"
  35
  36 static char PNAME_FMT[] = "%s: ";
  37 static char ERRNO_FMT[] = ": %s\n";
  38
  39 static char *pname;
  40
  41 /*PRINTFLIKE1*/
  42 void
  43 warn(const char *format, ...)
  44 {
  45         int err = errno;
  46         va_list alist;
  47         if (pname != NULL)
  48                 (void) fprintf(stderr, gettext(PNAME_FMT), pname);
  49         va_start(alist, format);
  50         (void) vfprintf(stderr, format, alist);
  51         va_end(alist);
  52         if (strchr(format, '\n') == NULL)
  53                 (void) fprintf(stderr, gettext(ERRNO_FMT), strerror(err));
  54 }
  55
  56 /*PRINTFLIKE1*/
  57 void
  58 die(char *format, ...)
  59 {
  60         int err = errno;
  61         va_list alist;
  62
  63         if (pname != NULL)
  64                 (void) fprintf(stderr, gettext(PNAME_FMT), pname);
  65         va_start(alist, format);
  66         (void) vfprintf(stderr, format, alist);
  67         va_end(alist);
  68         if (strchr(format, '\n') == NULL)
  69                 (void) fprintf(stderr, gettext(ERRNO_FMT), strerror(err));
  70         exit(E_ERROR);
  71 }
  72
  73 char *
  74 setpname(char *arg0)
  75 {
  76         char *p = strrchr(arg0, '/');
  77
  78         if (p == NULL)
  79                 p = arg0;
  80         else
  81                 p++;
  82         pname = p;
  83         return (pname);
  84 }