42 lines
931 B
C
42 lines
931 B
C
/* Version of sigsetmask.c
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Written by Steve Chamberlain (sac@cygnus.com).
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Contributed by Cygnus Support.
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This file is in the public doamin. */
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/*
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@deftypefn Supplemental int sigsetmask (int @var{set})
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Sets the signal mask to the one provided in @var{set} and returns
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the old mask (which, for libiberty's implementation, will always
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be the value @code{1}).
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@end deftypefn
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*/
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#define _POSIX_SOURCE
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#include <ansidecl.h>
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/* Including <sys/types.h> seems to be needed by ISC. */
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#include <sys/types.h>
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#include <signal.h>
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extern void abort PARAMS ((void)) ATTRIBUTE_NORETURN;
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#ifdef SIG_SETMASK
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int
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DEFUN(sigsetmask,(set),
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int set)
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{
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sigset_t new;
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sigset_t old;
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sigemptyset (&new);
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if (set != 0) {
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abort(); /* FIXME, we don't know how to translate old mask to new */
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}
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sigprocmask(SIG_SETMASK, &new, &old);
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return 1; /* FIXME, we always return 1 as old value. */
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}
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#endif
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