Creating a Child Process [using clone() function]

Source code to create a child process using clone() function

#include <stdio.h> #include <sched.h> #include <stdlib.h> #include <sys/wait.h> int fn(void *arg) { printf("\nINFO: This code is running under child process.\n"); int i = 0; int n = atoi(arg); for ( i = 1 ; i <= 10 ; i++ ) printf("%d * %d = %d\n", n, i, (n*i)); printf("\n"); return 0; } void main(int argc, char *argv[]) { printf("Hello, World!\n"); void *pchild_stack = malloc(1024 * 1024); if ( pchild_stack == NULL ) { printf("ERROR: Unable to allocate memory.\n"); exit(EXIT_FAILURE); } int pid = clone(fn, pchild_stack + (1024 * 1024), SIGCHLD, argv[1]); if ( pid < 0 ) { printf("ERROR: Unable to create the child process.\n"); exit(EXIT_FAILURE); } wait(NULL); free(pchild_stack); printf("INFO: Child process terminated.\n"); }

---

Happy Exploring!