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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
  sig	    Defines the signal.

  function  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 modified 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)

Index for Section 2

Alphabetical listing for B

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