usr/src/cmd/sgs/tsort/common/errtext.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 /*
  24  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
  25  * Use is subject to license terms.
  26  */
  27
  28 /*      Copyright (c) 1988 AT&T */
  29 /*        All Rights Reserved   */
  30
  31
  32 #pragma ident   "%Z%%M% %I%     %E% SMI"
  33
  34 /*
  35  *      Routines to print and adjust options on
  36  *      error messages.
  37  */
  38
  39 #include        "errmsg.h"
  40 #include        <stdio.h>
  41 #include        <stdarg.h>
  42 #include        <string.h>
  43 #include        <errno.h>
  44 #include        <stdlib.h>
  45
  46 /*
  47  *      Internal form, to handle both errtext() and _errmsg()
  48  */
  49 /* PRINTFLIKE2 */
  50 void
  51 __errtext(int severity, char *format, va_list ap)
  52 {
  53         int     puterrno = 0;           /* true if an errno msg was printed */
  54
  55         Err.severity = severity;
  56         errverb(getenv("ERRVERB"));
  57         errbefore(Err.severity, format, ap);
  58
  59         if (Err.severity == EIGNORE)
  60                 goto after;
  61
  62         if (Err.vbell)
  63                 (void) fputc('\07', stderr);
  64         if (Err.vprefix && Err.prefix) {
  65                 (void) fputs(Err.prefix, stderr);
  66                 (void) fputc(' ', stderr);
  67         }
  68         if (Err.vsource) {
  69                 if (Err.envsource ||
  70                         (Err.envsource = getenv("ERRSOURCE"))) {
  71                         (void) fprintf(stderr, "%s: ", Err.envsource);
  72                 }
  73         }
  74         if (Err.vsource && Err.source) {
  75                 (void) fprintf(stderr, "%s: ", Err.source);
  76         }
  77         if (Err.vsevmsg) {
  78                 char    **e;
  79
  80                 for (e = Err.sevmsg; *e; e++)
  81                         ;
  82                 if (Err.severity < (e - Err.sevmsg))
  83                         (void) fputs(Err.sevmsg[Err.severity], stderr);
  84                 else
  85                         (void) fputs("<UNKNOWN>", stderr);
  86         }
  87
  88         if (Err.vtext) {
  89                 if (Err.vsyserr && ((int)format == EERRNO)) {
  90                         (void) fflush(stderr);
  91                         perror("");
  92                         puterrno = 1;
  93                 } else {
  94                         (void) vfprintf(stderr, format, ap);
  95                         (void) fputs("\n", stderr);
  96                 }
  97         }
  98
  99         if ((errno && ((int)format != EERRNO)) &&
 100             (Err.vsyserr == EYES || (Err.vsyserr ==  EDEF &&
 101             (Err.severity == EHALT || Err.severity == EERROR)))) {
 102                 (void) fputc('\t', stderr);
 103                 (void) fflush(stderr);
 104                 perror("");
 105                 puterrno = 1;
 106         }
 107
 108         if (Err.vtag) {
 109                 if (Err.tagnum)
 110                         (void) fputc('\t', stderr);
 111                 else
 112                         (void) fputs("HELP FACILITY KEY: ", stderr);
 113                 if (Err.tagstr)
 114                         (void) fputs(Err.tagstr, stderr);
 115                 if (Err.tagnum)
 116                         (void) fprintf(stderr, ", line %d", Err.tagnum);
 117                 if (puterrno)
 118                         (void) fprintf(stderr, "\tUXerrno%d", errno);
 119                 (void) fputc('\n', stderr);
 120         }
 121
 122         if ((Err.vtext || Err.vtag) &&
 123             Err.vfix && Err.tofix && !Err.tagnum)
 124                 (void) fprintf(stderr, "To Fix:\t%s\n", Err.tofix);
 125         after:
 126         erraction(errafter(Err.severity, format, ap));
 127 }
 128
 129
 130 /*
 131  *      external form, used by errmsg() macro, when tag is not permanently
 132  *      assigned.
 133  */
 134 void
 135 errtext(int severity, char *format, ...)
 136 {
 137         va_list ap;
 138
 139         va_start(ap, format);
 140         __errtext(severity, format, ap);
 141         va_end(ap);
 142 }
 143
 144
 145 /*
 146  *      external form, used when tag is permanently assigned.
 147  */
 148 void
 149 _errmsg(char *tag, int severity, char *format, ...)
 150 {
 151         va_list ap;
 152
 153         Err.tagstr = tag;
 154         Err.tagnum = 0;
 155         va_start(ap, format);
 156         __errtext(severity, format, ap);
 157         va_end(ap);
 158 }
 159
 160 void
 161 errverb(char *s)
 162 {
 163         char    buf[ BUFSIZ ];
 164         char   *token;
 165         static char   space[] = ",\t\n";
 166
 167         if (!s)
 168                 return;
 169         (void) strcpy(buf, s);
 170         for (token = errstrtok(buf, space);  token;
 171                 token = errstrtok((char *)0, space)) {
 172                 if (strcmp(token, "nochange") == 0) {
 173                         Err.vbell   =  ENO;
 174                         Err.vtext   =  EYES;
 175                         Err.vsource =  EYES;
 176                         Err.vsyserr =  EYES;
 177                         Err.vtag    =  ENO;
 178                         Err.vsevmsg =  ENO;
 179                         Err.vfix         =  ENO;
 180                 } else if (strcmp(token, "silent") == 0) {
 181                         Err.vbell   =  ENO;
 182                         Err.vprefix =  ENO;
 183                         Err.vtext   =  ENO;
 184                         Err.vsource =  ENO;
 185                         Err.vsyserr =  ENO;
 186                         Err.vtag    =  ENO;
 187                         Err.vsevmsg =  ENO;
 188                         Err.vfix         =  ENO;
 189                 } else if (strcmp(token, "verbose") == 0) {
 190                         Err.vbell   =  EYES;
 191                         Err.vprefix =  EYES;
 192                         Err.vtext   =  EYES;
 193                         Err.vsource =  EYES;
 194                         Err.vsyserr =  EYES;
 195                         Err.vtag    =  EYES;
 196                         Err.vsevmsg =  EYES;
 197                         Err.vfix         =  EYES;
 198                 } else if (strcmp(token, "expert") == 0) {
 199                         Err.vbell   =  ENO;
 200                         Err.vprefix =  ENO;
 201                         Err.vtext   =  EYES;
 202                         Err.vsource =  EYES;
 203                         Err.vsyserr =  EYES;
 204                         Err.vtag    =  ENO;
 205                         Err.vsevmsg =  EYES;
 206                         Err.vfix         =  ENO;
 207                 } else if (strcmp(token, "bell") == 0) {
 208                         Err.vbell = EYES;
 209                 } else if (strcmp(token, "nobell") == 0) {
 210                         Err.vbell = ENO;
 211                 } else if (strcmp(token, "tag") == 0) {
 212                         Err.vtag = EYES;
 213                 } else if (strcmp(token, "notag") == 0) {
 214                         Err.vtag = ENO;
 215                 } else if (strcmp(token, "text") == 0) {
 216                         Err.vtext = EYES;
 217                 } else if (strcmp(token, "notext") == 0) {
 218                         Err.vtext = ENO;
 219                 } else if (strcmp(token, "tofix") == 0) {
 220                         Err.vfix = EYES;
 221                 } else if (strcmp(token, "notofix") == 0) {
 222                         Err.vfix = ENO;
 223                 } else if (strcmp(token, "syserr") == 0) {
 224                         Err.vsyserr = EYES;
 225                 } else if (strcmp(token, "nosyserr") == 0) {
 226                         Err.vsyserr = ENO;
 227                 } else if (strcmp(token, "defsyserr") == 0) {
 228                         Err.vsyserr = EDEF;
 229                 } else if (strcmp(token, "source")) {
 230                         Err.vsource = EYES;
 231                 } else if (strcmp(token, "nosource")  == 0) {
 232                         Err.vsource = ENO;
 233                 } else if (strcmp(token, "sevmsg") == 0) {
 234                         Err.vsevmsg = EYES;
 235                 } else if (strcmp(token, "nosevmsg") == 0) {
 236                         Err.vsevmsg = ENO;
 237                 } else if (strcmp(token, "prefix") == 0) {
 238                         Err.vprefix = EYES;
 239                 } else if (strcmp(token, "noprefix") == 0) {
 240                         Err.vprefix = ENO;
 241                 }
 242         }
 243 }