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/*
**
** halt.c
**
** This is used to print out error messages and exit
*/
#include <varargs.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
/*-------------------------------------------------------------------------
**
** halt - print error message, and call clean up routine or exit
**
**------------------------------------------------------------------------*/
/*VARARGS*/
void halt(va_alist)
va_dcl
{
va_list arg_ptr;
char *format, *pstr;
void (*sig_func)();
va_start(arg_ptr);
format = va_arg(arg_ptr,char *);
if (strncmp(format,"PERROR", 6) != 0)
vfprintf(stderr,format,arg_ptr);
else
{
for (pstr=format+6; *pstr == ' ' || *pstr == ':'; pstr++)
;
vfprintf(stderr,pstr,arg_ptr);
perror("");
}
va_end(arg_ptr);
fflush(stderr);
/* call one clean up function if defined */
if ( (sig_func = signal(SIGTERM, SIG_DFL)) != SIG_DFL &&
sig_func != SIG_IGN)
(*sig_func)(0);
else if ( (sig_func = signal(SIGHUP, SIG_DFL)) != SIG_DFL &&
sig_func != SIG_IGN)
(*sig_func)(0);
else if ( (sig_func = signal(SIGINT, SIG_DFL)) != SIG_DFL &&
sig_func != SIG_IGN)
(*sig_func)(0);
else if ( (sig_func = signal(SIGQUIT, SIG_DFL)) != SIG_DFL &&
sig_func != SIG_IGN)
(*sig_func)(0);
exit(1);
}
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