bsd_signal(2)							System Calls Manual						     bsd_signal(2)

NAME

       bsd_signal - Simplified signal facilities

LIBRARY

       Standard C Library (libc.so, libc.a)

SYNOPSIS

       #include <signal.h>

       void (*bsd_signal(
	       int sig,
	       void (*function)(int)))(int);

STANDARDS

       Interfaces documented on this reference page conform to industry standards as follows:

       bsd_signal():  XPG4-UNIX

       Refer to the standards(5) reference page for more information about industry standards and associated tags.

PARAMETERS

       Defines the signal.  Specifies the address of a signal handler.

DESCRIPTION

       The bsd_signal() function provides a partially compatible interface for programs written to historical system interfaces.

       The handler function should be declared: void handler(int sig);

       where  sig is the signal number.  The behaviour is undefined if function is a function that takes more than one argument, or an argument of
       a different type.

       This function is a direct replacement for the BSD signal() function for simple applications that are installing	a  single-argument  signal
       handler function.  If a BSD signal handler function is being installed that expects more than one argument, the application has to be modi-
       fied to use sigaction().  The bsd_signal() function differs from signal() in that the SA_RESTART flag is set and the SA_RESETHAND  will	be
       clear when  the libsys5 version of bsd_signal() is used.  The state of these flags is not specified for signal().

RETURN VALUES

       Upon  successful completion, bsd_signal() returns the previous action for sig.  Otherwise, SIG_ERR is returned and errno is set to indicate
       the error.

ERRORS

       Refer to sigaction(2).

RELATED INFORMATION

       Functions: sigaction(2), sigaddset(3), sigemptyset(3), signal(2)

       Standards: standards(5) delim off

																     bsd_signal(2)