tkt

SCR3.1/TP3/Exo2/banane1

@@ -0,0 +1 @@
+je suis le pereje suis le fils !!!

SCR3.1/TP3/Exo2/banane2

@@ -0,0 +1 @@
+je suis le fils !!!

SCR3.1/TP3/Exo2/fork_and_fd1.c

@@ -0,0 +1,42 @@
+#include <sys/types.h>
+#include <unistd.h>
+#include<stdio.h>
+#include <stdlib.h>
+#include<assert.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <string.h>
+
+#define msg1 "je suis le pere"
+#define msg2 "je suis le fils !!!"
+
+int main(int argc,char * argv[]){
+
+	int outfd;
+	pid_t p;
+
+	if (argc != 2){
+
+		printf("%s file\n",argv[0]);
+		exit(1);
+	}
+
+	//p=fork();
+	outfd = open(argv[1],O_WRONLY|O_CREAT,0644);
+	assert(outfd >= 0);
+	p=fork();
+	switch(p){
+		case (pid_t)-1 : 
+			perror(NULL);
+			exit(2);
+
+		case (pid_t)0 :
+			write(outfd,msg2,strlen(msg2));
+			break;
+		default : 
+			write (outfd,msg1,strlen(msg1));
+			break;
+	}
+	close(outfd);
+}

SCR3.1/TP3/Exo2/fork_and_fd2.c

@@ -0,0 +1,42 @@
+#include <sys/types.h>
+#include <unistd.h>
+#include<stdio.h>
+#include <stdlib.h>
+#include<assert.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <string.h>
+
+#define msg1 "je suis le pere"
+#define msg2 "je suis le fils !!!"
+
+int main(int argc,char * argv[]){
+
+	int outfd;
+	pid_t p;
+
+	if (argc != 2){
+
+		printf("%s file\n",argv[0]);
+		exit(1);
+	}
+
+	p=fork();
+	outfd = open(argv[1],O_WRONLY|O_CREAT,0644);
+	assert(outfd >= 0);
+	//p=fork();
+	switch(p){
+		case (pid_t)-1 : 
+			perror(NULL);
+			exit(2);
+
+		case (pid_t)0 :
+			write(outfd,msg2,strlen(msg2));
+			break;
+		default : 
+			write (outfd,msg1,strlen(msg1));
+			break;
+	}
+	close(outfd);
+}