Difference between signal() and sigaction() function

[martin paul]

Hello Sir...Could you tell me the KEY difference between signal and sigaction functions....Kindly consider the following sample program which is using signal function...

#include <signal.h>
void mysighandler(void);
int main ()
{
    signal(SIGINT,mysighandler);
    char ch;
    while(1) {
        ch=getchar();
        putchar(ch);
    }
}
void mysighandler(void);
{
    printf("interrrupt signal recieved\n");
}
 

The above main function goes into infinite loop ...when I press ctrl-C my signal handler is getting executed..upto this is fine..
But what difference it makes when I use sigaction() system call in the above program...
I would be thankful if you help me...

[Motoma]

I have moved this thread to the C++ forum, as I feel the people there will be of more help then I.

[AdrianH]

See sigaction() and signal() for more info.


Adrian