scc

simple c99 compiler
git clone git://git.simple-cc.org/scc
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_sigaction.c (485B)

      1 #include <string.h>
      2 
      3 #include <arch/sigaction.h>
      4 #include <sys.h>
      5 
      6 extern void _sigreturn(void);
      7 
      8 int _sigaction(int sig, struct sigaction *sa, struct sigaction *old)
      9 {
     10 	struct sigaction ksa, *p = NULL;
     11 
     12 	if (sa) {
     13 		ksa.sa_handler = sa->sa_handler;
     14 		ksa.sa_flags = sa->sa_flags | SA_RESTORER;
     15 		ksa.sa_restorer = _sigreturn;
     16 		memcpy(&ksa.sa_mask, &sa->sa_mask, sizeof(ksa.sa_mask));
     17 		p = &ksa;
     18 	}
     19 
     20 	if (__sigaction(sig, p, old, sizeof(ksa.sa_mask)) < 0)
     21 		return -1;
     22 
     23 	return 0;
     24 }