usr/src/lib/libadm/common/puterror.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, 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) 1984, 1986, 1987, 1988, 1989 AT&T */
  24 /*        All Rights Reserved   */
  25
  26
  27 /*
  28  * Copyright (c) 1997, by Sun Microsystems, Inc.
  29  * All rights reserved.
  30  */
  31
  32 /*LINTLIBRARY*/
  33 #pragma ident   "%Z%%M% %I%     %E% SMI"        /* SVr4.0 1.1 */
  34
  35 #include <sys/types.h>
  36 #include <stdio.h>
  37 #include <string.h>
  38 #include <stdlib.h>
  39 #include "libadm.h"
  40
  41 #define DEFMSG  "ERROR: "
  42 #define MS      sizeof (DEFMSG)
  43 #define INVINP  "invalid input"
  44
  45 void
  46 puterror(FILE *fp, char *defmesg, char *error)
  47 {
  48         char    *tmp;
  49         size_t  n;
  50
  51         if (error == NULL) {
  52                 /* use default message since no error was provided */
  53                 n = (defmesg ?  strlen(defmesg) : strlen(INVINP));
  54                 tmp = calloc(MS+n+1, sizeof (char));
  55                 (void) strcpy(tmp, DEFMSG);
  56                 (void) strcat(tmp, defmesg ? defmesg : INVINP);
  57
  58         } else if (defmesg != NULL) {
  59                 n = strlen(error);
  60                 if (error[0] == '~') {
  61                         /* prepend default message */
  62                         tmp = calloc(MS+n+strlen(defmesg)+2, sizeof (char));
  63                         (void) strcpy(tmp, DEFMSG);
  64                         (void) strcat(tmp, defmesg);
  65                         (void) strcat(tmp, "\n");
  66                         ++error;
  67                         (void) strcat(tmp, error);
  68                 } else if (n && (error[n-1] == '~')) {
  69                         /* append default message */
  70                         tmp = calloc(MS+n+strlen(defmesg)+2, sizeof (char));
  71                         (void) strcpy(tmp, DEFMSG);
  72                         (void) strcat(tmp, error);
  73                         /* first -1 'cuz sizeof (DEFMSG) includes terminator */
  74                         tmp[MS-1+n-1] = '\0';
  75                         (void) strcat(tmp, "\n");
  76                         (void) strcat(tmp, defmesg);
  77                 } else {
  78                         tmp = calloc(MS+n+1, sizeof (char));
  79                         (void) strcpy(tmp, DEFMSG);
  80                         (void) strcat(tmp, error);
  81                 }
  82         } else {
  83                 n = strlen(error);
  84                 tmp = calloc(MS+n+1, sizeof (char));
  85                 (void) strcpy(tmp, DEFMSG);
  86                 (void) strcat(tmp, error);
  87         }
  88         (void) puttext(fp, tmp, ckindent, ckwidth);
  89         (void) fputc('\n', fp);
  90         free(tmp);
  91 }