1 #define _GNU_SOURCE 2 #include <signal.h> 3 4 #define SST_SIZE (_NSIG/8/sizeof(long)) 5 sigandset(sigset_t * dest,const sigset_t * left,const sigset_t * right)6int sigandset(sigset_t *dest, const sigset_t *left, const sigset_t *right) 7 { 8 unsigned long i = 0, *d = (void*) dest, *l = (void*) left, *r = (void*) right; 9 for(; i < SST_SIZE; i++) d[i] = l[i] & r[i]; 10 return 0; 11 } 12 13