Thread: Signal handling

Please I am trying to create a program that would execute a foreground process.

I have this code for the foreground process

Code:

#include <stdio.h>
#include <signal.h>


int main()
{
   int temp;
   


   printf("We are in the current program\n");
   scanf("%d", &temp);


   printf("Leaving new program");
   
   return 0;
   
}

And this is my main program

Code:

#include <unistd.h>
#include <signal.h>
#include <stdio.h>


int main()
{
   signal(SIGINT, SIG_IGN);
   
   execvp("./scanf", NULL);


   printf("How are you");
   
   return 0;
}

My main program stops executing after the process "./scanf" executes and there fore does not print the line "How are You"

I want to main program to continue executing after "./scanf" finishes. Any idea on how to achieve that?

execvp replaces the current process with the new one, so your program "stops executing" as soon as you call execvp. You need to call fork() first to make a new process.