WINGs/error.c

   1 /*
   2  *  Window Maker miscelaneous function library
   3  *
   4  *  Copyright (c) 1997-2003 Alfredo K. Kojima
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 2 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19  */
  20
  21 #include "wconfig.h"
  22
  23 #include <stdio.h>
  24 #include <stdlib.h>
  25 #include <stdarg.h>
  26 #include <string.h>
  27 #include <errno.h>
  28
  29 #include <WUtil.h>
  30
  31 extern char *_WINGS_progname;
  32
  33 #define MAXLINE 1024
  34
  35 void __wmessage(int type, void *extra, const char *msg, ...)
  36 {
  37         va_list args;
  38         char buf[MAXLINE];
  39
  40         fflush(stdout);
  41         /* message format: <wings_progname>: <qualifier>: <message>[: <extra info>]"\n" */
  42         snprintf(buf, sizeof(buf), "%s: ", _WINGS_progname ? _WINGS_progname : "WINGs");
  43         va_start(args, msg);
  44         switch (type) {
  45                 case WMESSAGE_TYPE_WARNING:
  46                         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf) - 1,
  47                                 _("warning: "));
  48                         vsnprintf(buf + strlen(buf), sizeof(buf) - strlen(buf) - 1,
  49                                 msg, args);
  50                 break;
  51                 case WMESSAGE_TYPE_FATAL:
  52                         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf) - 1,
  53                                 _("fatal error: "));
  54                         vsnprintf(buf + strlen(buf), sizeof(buf) - strlen(buf) - 1,
  55                                 msg, args);
  56                 break;
  57                 case WMESSAGE_TYPE_WSYSERROR:
  58                 case WMESSAGE_TYPE_WSYSERRORWITHCODE:
  59                         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf) - 1,
  60                                 _("error: "));
  61                         vsnprintf(buf + strlen(buf), sizeof(buf) - strlen(buf) - 1,
  62                                 msg, args);
  63                         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf) - 1,
  64                                 ": %s", type == WMESSAGE_TYPE_WSYSERROR ?
  65                                     strerror(errno) : strerror(*(int *)extra));
  66                 break;
  67                 case WMESSAGE_TYPE_MESSAGE:
  68                         /* FALLTHROUGH */
  69                 default:
  70                         snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf) - 1, ": ");
  71                         vsnprintf(buf + strlen(buf), sizeof(buf) - strlen(buf) - 1, msg, args);
  72                 break;
  73         }
  74         va_end(args);
  75         strncat(buf + strlen(buf), "\n", sizeof(buf) - strlen(buf));
  76         fputs(buf, stderr);
  77 }
  78