signal.c File Reference

#include <precomp.h>
#include "include/internal/wine/msvcrt.h"

Include dependency graph for signal.c:

Go to the source code of this file.

Functions
__p_sig_fn_t	signal (int sig, __p_sig_fn_t func)
int	raise (int sig)
void	_default_handler (int sig)

Variables
static sig_element	signal_list []

Function Documentation

_default_handler()

void _default_handler

(

int

sig

)

Definition at line 120 of file signal.c.

{
   _exit(3);
}

Referenced by raise().

raise()

int raise

(

int

sig

)

Definition at line 71 of file signal.c.

{
   __p_sig_fn_t temp = 0;
   unsigned int i;
 
   switch (sig)
   {
      case SIGINT:
      case SIGILL:
      case SIGFPE:
      case SIGSEGV:
      case SIGTERM:
      case SIGBREAK:
      case SIGABRT:
         break;
 
      default:
         //FIXME: set last err?
         return -1;
   }
 
 
   //  if(sig <= 0)
   //    return -1;
   //  if(sig > SIGMAX)
   //    return -1;
 
   for(i=0;i<sizeof(signal_list)/sizeof(signal_list[0]);i++)
   {
      if ( signal_list[i].signal == sig )
      {
         temp = signal_list[i].handler;
         break;
      }
   }
 
   if(temp == SIG_IGN)// || (sig == SIGQUIT && temp == (_p_sig_fn_t)SIG_DFL))
      return 0;   /* Ignore it */
 
   if(temp == SIG_DFL)
      _default_handler(sig); /* this does not return */
   else
      temp(sig);
 
   return 0;
}

Referenced by _CrtHandleDbgReport(), abort(), getline(), test___pxcptinfoptrs(), and test_signal().

signal()

__p_sig_fn_t signal	(	int	sig,
		__p_sig_fn_t	func
	)

Definition at line 23 of file signal.c.

{
   __p_sig_fn_t temp;
   unsigned int i;
 
   switch (sig)
   {
      case SIGINT:
      case SIGILL:
      case SIGFPE:
      case SIGSEGV:
      case SIGTERM:
      case SIGBREAK:
      case SIGABRT:
         break;
 
      default:
         _set_errno(EINVAL);
         return SIG_ERR;
   }
 
   // check with IsBadCodePtr
   if ( (uintptr_t)func < 4096 && func != SIG_DFL && func != SIG_IGN)
   {
      _set_errno(EINVAL);
      return SIG_ERR;
   }
 
   for(i=0; i < sizeof(signal_list)/sizeof(signal_list[0]); i++)
   {
      if ( signal_list[i].signal == sig )
      {
         temp = signal_list[i].handler;
         signal_list[i].handler = func;
         return temp;
      }
   }
 
   /* should be impossible to get here */
   _set_errno(EINVAL);
   return SIG_ERR;
}

Variable Documentation

signal_list

sig_element signal_list[]

static

Initial value:

=
   {
      { SIGINT, "CTRL+C",SIG_DFL },
      { SIGILL, "Illegal instruction",SIG_DFL },
      { SIGFPE, "Floating-point exception",SIG_DFL },
      { SIGSEGV, "Illegal storage access",SIG_DFL },
      { SIGTERM, "Termination request",SIG_DFL },
      { SIGBREAK, "CTRL+BREAK",SIG_DFL },
      { SIGABRT, "Abnormal termination",SIG_DFL }
   }

Definition at line 4 of file signal.c.

Referenced by raise(), and signal().