First commit

content/progsys/TDM_3-processus/src/q3.c

@@ -0,0 +1,37 @@
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <sys/wait.h>
+
+int main(int argc, char **argv){
+    if (argc > 2) {
+        printf("Error : %s must have one argument\n", argv[0]);
+        exit(EXIT_FAILURE);
+    }
+    if (argv[1] == NULL) {
+        printf("Execute child process\n");
+        exit(EXIT_SUCCESS);
+    }
+    else {
+        int x = atoi(argv[1]);
+        printf("Number of children to create : %d\n", x);
+        for (int i=0; i < x ; i++){
+            int pid = fork();
+            if (pid == -1) {
+                printf("Error : %s", strerror(errno));
+                exit(EXIT_FAILURE);
+            }
+            if (pid == 0) {
+                // we are in our children
+                if ((execl(argv[0],"",NULL)) < 0 ) {
+                    printf("Error : %s\n", strerror(errno));
+                    exit(EXIT_FAILURE);
+                }
+            }
+
+        }
+    }
+    exit(EXIT_SUCCESS);
+}