WINGs/error.c

   1 /*
   2  *  Window Maker miscelaneous function library
   3  *
   4  *  Copyright (c) 1997 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
  22 #include "../src/config.h"
  23
  24 #include <stdio.h>
  25 #include <stdlib.h>
  26 #include <stdarg.h>
  27 #include <string.h>
  28 #include <errno.h>
  29
  30 #if !defined(HAVE_STRERROR) && defined(BSD)
  31 #define HAVE_STRERROR
  32 char *
  33 strerror(int errnum)
  34 {
  35   extern int errno, sys_nerr;
  36 #ifndef __DECC
  37   extern char *sys_errlist[];
  38 #endif
  39   static char buf[] = "Unknown error 12345678901234567890";
  40
  41   if (errno < sys_nerr)
  42     return sys_errlist[errnum];
  43
  44   sprintf (buf, "Unknown error %d", errnum);
  45   return buf;
  46 }
  47 #endif
  48
  49
  50 extern char *_WINGS_progname;
  51
  52 #define MAXLINE 1024
  53
  54
  55 /**************************************************************************
  56  * Prints a fatal error message with variable arguments and terminates
  57  *
  58  * msg - message to print with optional formatting
  59  * ... - arguments to use on formatting
  60  **************************************************************************/
  61 void
  62 wfatal(const char *msg, ...)
  63 {
  64     va_list args;
  65     char buf[MAXLINE];
  66
  67     va_start(args, msg);
  68
  69     vsprintf(buf, msg, args);
  70     strcat(buf,"\n");
  71     fflush(stdout);
  72     fputs(_WINGS_progname, stderr);
  73     fputs(" fatal error: ",stderr);
  74     fputs(buf, stderr);
  75     fflush(stdout);
  76     fflush(stderr);
  77
  78     va_end(args);
  79 }
  80
  81
  82 /*********************************************************************
  83  * Prints a warning message with variable arguments
  84  *
  85  * msg - message to print with optional formatting
  86  * ... - arguments to use on formatting
  87  *********************************************************************/
  88 void
  89 wwarning(const char *msg, ...)
  90 {
  91     va_list args;
  92     char buf[MAXLINE];
  93
  94     va_start(args, msg);
  95
  96     vsprintf(buf, msg, args);
  97     strcat(buf,"\n");
  98     fflush(stdout);
  99     fputs(_WINGS_progname, stderr);
 100     fputs(" warning: ",stderr);
 101     fputs(buf, stderr);
 102     fflush(stdout);
 103     fflush(stderr);
 104
 105     va_end(args);
 106 }
 107
 108
 109 /*********************************************************************
 110  * Prints a system error message with variable arguments
 111  *
 112  * msg - message to print with optional formatting
 113  * ... - arguments to use on formatting
 114  *********************************************************************/
 115 void
 116 wsyserror(const char *msg, ...)
 117 {
 118     va_list args;
 119     char buf[MAXLINE];
 120 #ifdef HAVE_STRERROR
 121     int error=errno;
 122 #endif
 123     va_start(args, msg);
 124     vsprintf(buf, msg, args);
 125     fflush(stdout);
 126     fputs(_WINGS_progname, stderr);
 127     fputs(" error: ", stderr);
 128     strcat(buf, ": ");
 129 #ifdef HAVE_STRERROR
 130     strcat(buf, strerror(error));
 131     strcat(buf,"\n");
 132     fputs(buf, stderr);
 133     fflush(stderr);
 134     fflush(stdout);
 135 #else
 136     perror(buf);
 137 #endif
 138     va_end(args);
 139 }
 140