ref: 3731792b164223503a4bca4f94a10d0dda63a59f
dir: /src/libc/arch/linux/_sigaction.c/
#include <string.h> #include <arch/sigaction.h> #include <sys.h> extern void _sigreturn(void); int _sigaction(int sig, struct sigaction *sa, struct sigaction *old) { struct sigaction ksa, *p = NULL; if (sa) { ksa.sa_handler = sa->sa_handler; ksa.sa_flags = sa->sa_flags | SA_RESTORER; ksa.sa_restorer = _sigreturn; memcpy(&ksa.sa_mask, &sa->sa_mask, sizeof(ksa.sa_mask)); p = &ksa; } if (__sigaction(sig, p, old, sizeof(ksa.sa_mask)) < 0) return -1; return 0; }