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 "wconfig.h"
  25
  26 #include <stdio.h>
  27 #include <stdlib.h>
  28 #include <stdarg.h>
  29 #include <string.h>
  30 #include <errno.h>
  31
  32 extern char *_WINGS_progname;
  33
  34
  35 #define MAXLINE 1024
  36
  37
  38 /*********************************************************************
  39  * Returns the system error message associated with error code 'errnum'
  40  *********************************************************************/
  41 char*
  42 wstrerror(int errnum)
  43 {
  44 #if defined(HAVE_STRERROR)
  45     return strerror(errnum);
  46 #elif !defined(HAVE_STRERROR) && defined(BSD)
  47     extern int errno, sys_nerr;
  48 #  ifndef __DECC
  49     extern char *sys_errlist[];
  50 #  endif
  51     static char buf[] = "Unknown error 12345678901234567890";
  52
  53     if (errno < sys_nerr)
  54         return sys_errlist[errnum];
  55
  56     sprintf (buf, _("Unknown error %d"), errnum);
  57     return buf;
  58 #else /* no strerror() and no sys_errlist[] */
  59     static char buf[] = "Error 12345678901234567890";
  60
  61     sprintf(buf, _("Error %d"), errnum);
  62     return buf;
  63 #endif
  64 }
  65
  66
  67 /*********************************************************************
  68  * Prints a message with variable arguments
  69  *
  70  * msg - message to print with optional formatting
  71  * ... - arguments to use on formatting
  72  *********************************************************************/
  73 void
  74 wmessage(const char *msg, ...)
  75 {
  76     va_list args;
  77     char buf[MAXLINE];
  78
  79     va_start(args, msg);
  80
  81     vsnprintf(buf, MAXLINE-3, msg, args);
  82     strcat(buf,"\n");
  83     fflush(stdout);
  84     fputs(_WINGS_progname ? _WINGS_progname : "WINGs", stderr);
  85     fputs(": ",stderr);
  86     fputs(buf, stderr);
  87     fflush(stdout);
  88     fflush(stderr);
  89
  90     va_end(args);
  91 }
  92
  93
  94 /*********************************************************************
  95  * Prints a warning message with variable arguments
  96  *
  97  * msg - message to print with optional formatting
  98  * ... - arguments to use on formatting
  99  *********************************************************************/
 100 void
 101 wwarning(const char *msg, ...)
 102 {
 103     va_list args;
 104     char buf[MAXLINE];
 105
 106     va_start(args, msg);
 107
 108     vsnprintf(buf, MAXLINE-3, msg, args);
 109     strcat(buf,"\n");
 110     fflush(stdout);
 111     fputs(_WINGS_progname ? _WINGS_progname : "WINGs", stderr);
 112     fputs(_(" warning: "),stderr);
 113     fputs(buf, stderr);
 114     fflush(stdout);
 115     fflush(stderr);
 116
 117     va_end(args);
 118 }
 119
 120
 121 /**************************************************************************
 122  * Prints a fatal error message with variable arguments and terminates
 123  *
 124  * msg - message to print with optional formatting
 125  * ... - arguments to use on formatting
 126  **************************************************************************/
 127 void
 128 wfatal(const char *msg, ...)
 129 {
 130     va_list args;
 131     char buf[MAXLINE];
 132
 133     va_start(args, msg);
 134
 135     vsnprintf(buf, MAXLINE-3, msg, args);
 136     strcat(buf,"\n");
 137     fflush(stdout);
 138     fputs(_WINGS_progname ? _WINGS_progname : "WINGs", stderr);
 139     fputs(_(" fatal error: "),stderr);
 140     fputs(buf, stderr);
 141     fflush(stdout);
 142     fflush(stderr);
 143
 144     va_end(args);
 145 }
 146
 147
 148 /*********************************************************************
 149  * Prints a system error message with variable arguments
 150  *
 151  * msg - message to print with optional formatting
 152  * ... - arguments to use on formatting
 153  *********************************************************************/
 154 void
 155 wsyserror(const char *msg, ...)
 156 {
 157     va_list args;
 158     char buf[MAXLINE];
 159     int error=errno;
 160
 161     va_start(args, msg);
 162     vsnprintf(buf, MAXLINE-3, msg, args);
 163     fflush(stdout);
 164     fputs(_WINGS_progname ? _WINGS_progname : "WINGs", stderr);
 165     fputs(_(" error: "), stderr);
 166     fputs(buf, stderr);
 167     fputs(": ", stderr);
 168     fputs(wstrerror(error), stderr);
 169     fputs("\n", stderr);
 170     fflush(stderr);
 171     fflush(stdout);
 172     va_end(args);
 173 }
 174
 175
 176 /*********************************************************************
 177  * Prints a system error message with variable arguments, being given
 178  * the error code.
 179  *
 180  * error - the error code foe which to print the message
 181  * msg   - message to print with optional formatting
 182  * ...   - arguments to use on formatting
 183  *********************************************************************/
 184 void
 185 wsyserrorwithcode(int error, const char *msg, ...)
 186 {
 187     va_list args;
 188     char buf[MAXLINE];
 189
 190     va_start(args, msg);
 191     vsnprintf(buf, MAXLINE-3, msg, args);
 192     fflush(stdout);
 193     fputs(_WINGS_progname ? _WINGS_progname : "WINGs", stderr);
 194     fputs(_(" error: "), stderr);
 195     fputs(buf, stderr);
 196     fputs(": ", stderr);
 197     fputs(wstrerror(error), stderr);
 198     fputs("\n", stderr);
 199     fflush(stderr);
 200     fflush(stdout);
 201     va_end(args);
 202 }
 203
 204