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 /* Set the current signal mask to the set provided, and return the 7 previous value */ 8 9 #define _POSIX_SOURCE 10 #include <ansidecl.h> 11 /* Including <sys/types.h> seems to be needed by ISC. */ 12 #include <sys/types.h> 13 #include <signal.h> 14 15 #ifdef SIG_SETMASK 16 int 17 DEFUN(sigsetmask,(set), 18 int set) 19 { 20 sigset_t new; 21 sigset_t old; 22 23 sigemptyset (&new); 24 if (set != 0) { 25 abort(); /* FIXME, we don't know how to translate old mask to new */ 26 } 27 sigprocmask(SIG_SETMASK, &new, &old); 28 return 1; /* FIXME, we always return 1 as old value. */ 29 } 30 #endif 31