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1 | /* Version of sigsetmask.c | |
2 | Written by Steve Chamberlain (sac@cygnus.com). | |
3 | Contributed by Cygnus Support. | |
4 | This file is in the public doamin. */ | |
5 | ||
6 | /* | |
7 | ||
8 | @deftypefn Supplemental int sigsetmask (int @var{set}) | |
9 | ||
10 | Sets the signal mask to the one provided in @var{set} and returns | |
11 | the old mask (which, for libiberty's implementation, will always | |
12 | be the value @code{1}). | |
13 | ||
14 | @end deftypefn | |
15 | ||
16 | */ | |
17 | ||
18 | #include <ansidecl.h> | |
19 | /* Including <sys/types.h> seems to be needed by ISC. */ | |
20 | #include <sys/types.h> | |
21 | #include <signal.h> | |
22 | ||
23 | extern void abort (void) ATTRIBUTE_NORETURN; | |
24 | ||
25 | #ifdef SIG_SETMASK | |
26 | int | |
27 | sigsetmask (int set) | |
28 | { | |
29 | sigset_t new_sig; | |
30 | sigset_t old_sig; | |
31 | ||
32 | sigemptyset (&new_sig); | |
33 | if (set != 0) { | |
34 | abort(); /* FIXME, we don't know how to translate old mask to new */ | |
35 | } | |
36 | sigprocmask(SIG_SETMASK, &new_sig, &old_sig); | |
37 | return 1; /* FIXME, we always return 1 as old value. */ | |
38 | } | |
39 | #endif |