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/*C* $Id: error.cc,v 1.2 1997/08/11 19:21:31 james Exp $
*
* Hatman - The Game of Kings
* Copyright (C) 1997 James Pharaoh & Timothy Fisken
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
*C*/
#include "debug.h"
#include "error.h"
#include "util.h"
#include <errno.h>
#include <printf.h>
#include <stdarg.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
char* errStr = "UNDEFINED ERROR";
static int printError(FILE* stream, const struct printf_info* info, const void *const *args)
{
if(!errStr)
{
fprintf(stream, "(no error)");
return 10;
}
fprintf(stream, "%s", errStr);
return strlen(errStr);
}
static int printErrorArginfo(const struct printf_info* info, size_t n, int* argtypes)
{
(void)info; (void)n; (void)argtypes;
return 0;
}
static int printErrnoString(FILE* stream, const struct printf_info* info, const void *const *args)
{
(void)info;
int i = errno;
fprintf(stream, "%s", strerror(i));
return(strlen(strerror(i)));
}
static int printErrnoStringArginfo(const struct printf_info* info, size_t n, int* argtypes)
{
(void)info; (void)n; (void)argtypes;
return 0;
}
void setError(const char* format, ...)
{
if(!format) { errStr = newString("no error"); return; }
va_list ap;
va_start(ap, format);
char* s;
vasprintf(&s, format, ap);
va_end(ap);
if(errStr) delete errStr;
errStr = s; // yes, this is really necessary
VPRINTF("<error> set to \"%s\"\n", errStr);
}
void initError()
{
VPRINTF("<error> initialising\n");
#if !defined __GLIBC__ || __GLIBC__ < 2
register_printf_function('z', (printf_function)printError, printErrorArginfo);
register_printf_function('y', (printf_function)printErrnoString, printErrnoStringArginfo);
#else
register_printf_function('z', printError, printErrorArginfo);
register_printf_function('y', printErrnoString, printErrnoStringArginfo);
#endif
}
const char* errnoStr()
{
return strerror(errno);
}
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