correction td6

2026-10-07 17:19:14 +02:00
parent 0e4adccee3
commit 6060731cf2
6 changed files with 353 additions and 0 deletions
@@ -0,0 +1,41 @@
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <assert.h>
+#include <sys/wait.h>
+#include <fcntl.h>
+int main(int argc, char *argv[])
+{
+	pid_t p1,p2;
+	int fd[2];
+
+	assert(pipe(fd) == 0);
+
+	p1 = fork();
+	if (p1 == 0){
+	close(fd[0]);
+	dup2(fd[1],STDOUT_FILENO);
+	close(fd[1]);
+	execlp("ls","ls",NULL);
+	assert(0);
+	}
+
+
+	p2 = fork();
+	if (p2 == 0){
+		int out = open("output.txt",O_CREAT|O_WRONLY|O_APPEND,0644);
+		dup2(out,STDOUT_FILENO);
+		close(out);
+	close(fd[1]);
+	dup2(fd[0],STDIN_FILENO);
+	close(fd[0]);
+	execlp("wc","wc",NULL);
+	assert(0);
+	}
+
+	close(fd[0]);
+	close(fd[1]);
+	wait(NULL);
+	wait(NULL);
+	return 0;
+}