*

SCR3.1/devoir27/ex1/gdf1.c

@@ -0,0 +1,17 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+int main(void){
+	pid_t x, x1, x2, x3;
+	x1 = fork();
+	if (x1 == 0){
+		x2=fork();
+		if (x2 == 0)
+			x = fork();
+		x3=fork();
+	}
+}
+	
+

SCR3.1/devoir27/ex1/gdf2.txt

@@ -0,0 +1 @@
+La commande "kill -TERM 30544" provoque l'arrêt forcé du processus 30544, à cause du signal de terminaison envoyé

SCR3.1/devoir27/ex1/gdf3.c

@@ -0,0 +1,38 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <assert.h>
+#include <fcntl.h>
+#define BUF_SIZE 128
+
+int main(void){
+	pid_t x, x1, x2, x3;
+	int p[2];
+	char buf;
+	assert(pipe(p) != -1);
+	x1 = fork();
+	if (x1 == 0){
+		x2=fork();
+		if (x2 == 0){
+			x = fork();
+			if (x == 0){
+				close(p[0]);
+				dup2(p[1], 1);
+				close(p[1]);
+				printf("%d", getpid());
+			}
+			x3=fork();
+		}
+		sleep(1);
+	}
+	if (x1 > 0){
+		close(p[1]);
+		while(read(p[0], &buf, sizeof(char)) > 0)
+			write(1, &buf, sizeof(char));
+	}
+	close(p[0]);
+	printf("\n");
+	return EXIT_SUCCESS;
+}
+	
+