scc

simple c99 compiler
git clone git://git.simple-cc.org/scc
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signal.c (297B)

      1 #include <signal.h>
      2 #include <stddef.h>
      3 
      4 #include <arch/sigaction.h>
      5 #include <sys.h>
      6 
      7 #undef signal
      8 
      9 void
     10 (*signal(int signum, void (*func)(int)))(int)
     11 {
     12 	struct sigaction osa, sa = {
     13 		.sa_handler = func,
     14 	};
     15 
     16 	if (_sigaction(signum, &sa, &osa) < 0)
     17 		return SIG_ERR;
     18 
     19 	return osa.sa_handler;
     20 }