Ex1 terminé

SCR3.1/TP5/4

@@ -0,0 +1,4 @@
+total 12
+  571 drwx------ 2 root root 4096 Oct  5 16:41 snap-private-tmp
+63266 drwx------ 3 root root 4096 Oct  5 16:41 systemd-private-751fc7fbe32349b8bb3b0cfa9273935a-systemd-logind.service-59VJA0
+  851 drwx------ 3 root root 4096 Oct  5 16:41 systemd-private-751fc7fbe32349b8bb3b0cfa9273935a-systemd-resolved.service-t8bMYr

SCR3.1/TP5/5

@@ -0,0 +1,4 @@
+total 12
+  571 drwx------ 2 root root 4096 Oct  5 16:41 snap-private-tmp
+63266 drwx------ 3 root root 4096 Oct  5 16:41 systemd-private-751fc7fbe32349b8bb3b0cfa9273935a-systemd-logind.service-59VJA0
+  851 drwx------ 3 root root 4096 Oct  5 16:41 systemd-private-751fc7fbe32349b8bb3b0cfa9273935a-systemd-resolved.service-t8bMYr

SCR3.1/TP5/ex1.2.c

@@ -0,0 +1,42 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/wait.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+int main(int argc, char** argv){
+	if (argc != 2){
+		printf("Usage : %s <file>", argv[0]);
+		exit(EXIT_FAILURE);
+	}
+	pid_t p;
+	int pip, fd[2], outfile, d;
+	char buf;
+	pip = pipe(fd);
+	if (pip == -1){
+		perror("Erreur lors de la création du pipe.");
+		exit(EXIT_FAILURE);
+	}
+	p = fork();
+	outfile = open(argv[1], O_WRONLY|O_CREAT, 0644);
+	switch(p){
+		case 0 :
+			close(fd[0]);
+			d = dup2(fd[1], 1);
+			execl("/usr/bin/ls", "ls", "-i", "-l", "/tmp", NULL);
+			close(fd[1]);
+			exit(0);
+		default :
+			close(fd[1]);
+			while(read(fd[0], &buf, sizeof(char)) > 0){
+				write(outfile, &buf, sizeof(char));
+			}
+			break;
+		case -1:
+			perror("Erreur lors de création d'un nouveau processus");
+			exit(EXIT_FAILURE);
+	}
+	close(outfile);
+	return EXIT_SUCCESS;
+}

SCR3.1/TP5/ex1.3.c

@@ -0,0 +1,33 @@
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <fcntl.h>
+
+int main(void){
+	pid_t pr;
+	int fd[2], p;
+	char c;
+	p = pipe(fd);
+	if (p == -1){
+		perror("Erreur de la création du tube");
+		return EXIT_FAILURE;
+	}
+	pr = fork();
+	switch(pr){
+		case -1:
+			perror("Pas de nouveau processus, l'histoire s'arrête ici...");
+			return EXIT_FAILURE;
+		case 0:
+			close(fd[0]);
+			dup2(fd[1], 1);
+			execl("/usr/bin/ls", "ls", ".", NULL);
+			exit(0);
+		default :
+			close(fd[1]);
+			dup2(fd[0], 0);
+			execl("/usr/bin/wc", "wc", "-l", NULL);
+	}
+	close(fd[0]);
+	return 0;
+}

SCR3.1/TP5/ex2.c

@@ -1,15 +0,0 @@
-#include <unistd.h>
-#include <stdio.h>
-#include <stdlib.h>
-
-int main(int argc, char** argv){
-	if (args != 2){
-		printf("Usage : %s <file>", argv[0]);
-		return EXIT_FAILURE;
-	}
-	int p[2], fd;
-	fd = open(argv[1], 
-	pipe(p);
-	execl("/usr/bin/ls", "ls", "-i", "-l", "/tmp", NULL);
-	dup2(p[0],0);
-