NAME

sigignore — manipulate signal dispositions

LIBRARY

Standard C Library (libc, -lc)

SYNOPSIS

#include <signal.h>

int
sigignore(int sig);

DESCRIPTION

The sigignore() function sets the disposition of the signal sig to SIG_IGN.

RETURN VALUES

If successful, the sigignore() function returns 0. Otherwise -1 is returned and errno is set to indicate the error.

ERRORS

The sigignore() function will fail if:

[EINVAL]

The argument sig is not a valid signal number; or an attempt is made to ignore a signal that cannot be ignored, such as SIGKILL or SIGSTOP.

SEE ALSO

sigaction(2)

STANDARDS

The sigignore() function conforms to IEEE Std 1003.1-2001 (“POSIX.1”). It was however marked as obsolete in the IEEE Std 1003.1-2008 (“POSIX.1”) revision of the standard.