зеркало из https://github.com/github/putty.git
32 строки
815 B
C
32 строки
815 B
C
#include <signal.h>
|
|
|
|
/*
|
|
* Calling signal() is a non-portable, as it varies in meaning between
|
|
* platforms and depending on feature macros, and has stupid semantics
|
|
* at least some of the time.
|
|
*
|
|
* This function provides the same interface as the libc function, but
|
|
* provides consistent semantics. It assumes POSIX semantics for
|
|
* sigaction() (so you might need to do some more work if you port to
|
|
* something ancient like SunOS 4)
|
|
*/
|
|
void (*putty_signal(int sig, void (*func)(int)))(int) {
|
|
struct sigaction sa;
|
|
struct sigaction old;
|
|
|
|
sa.sa_handler = func;
|
|
if(sigemptyset(&sa.sa_mask) < 0)
|
|
return SIG_ERR;
|
|
sa.sa_flags = SA_RESTART;
|
|
if(sigaction(sig, &sa, &old) < 0)
|
|
return SIG_ERR;
|
|
return old.sa_handler;
|
|
}
|
|
|
|
/*
|
|
Local Variables:
|
|
c-basic-offset:4
|
|
comment-column:40
|
|
End:
|
|
*/
|