forked from mirrors/tftp-hpa-google
22accddda0
The source code was a mix of different styles; normalize on NASM style; basically K&R style with 4 space indentation.
27 lines
546 B
C
27 lines
546 B
C
/*
|
|
* bsdsignal.c
|
|
*
|
|
* Use sigaction() to simulate BSD signal()
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
void (*bsd_signal(int signum, void (*handler) (int))) (int) {
|
|
struct sigaction action, oldaction;
|
|
|
|
memset(&action, 0, sizeof action);
|
|
action.sa_handler = handler;
|
|
sigemptyset(&action.sa_mask);
|
|
sigaddset(&action.sa_mask, signum);
|
|
action.sa_flags = SA_RESTART;
|
|
|
|
if (sigaction(signum, &action, &oldaction) == -1) {
|
|
#ifdef SIG_ERR
|
|
return SIG_ERR;
|
|
#else
|
|
return NULL;
|
|
#endif
|
|
}
|
|
|
|
return oldaction.sa_handler;
|
|
}
|