From 0241729e67911dc28ec3195b226f545cf4ef0f02 Mon Sep 17 00:00:00 2001
From: ngwalang <armich.ngwala@gmail.com>
Date: Fri, 3 Mar 2023 21:52:30 +0100
Subject: [PATCH] Update

---
 SCR1.2/TP11/get_numb.c     |  34 ++++++++++++++++++++++++++++++++++
 SCR1.2/TP11/put_nub.c      |  27 +++++++++++++++++++++++++++
 SCR1.2/TP11/test.dat*      |   0
 SCR1.2/TP11/test.txt       | Bin 13 -> 20 bytes
 SCR2.1/TP13/tp13-notes.txt |  20 ++++++++++++++++++++
 5 files changed, 81 insertions(+)
 create mode 100644 SCR1.2/TP11/get_numb.c
 create mode 100644 SCR1.2/TP11/put_nub.c
 create mode 100644 SCR1.2/TP11/test.dat*
 create mode 100644 SCR2.1/TP13/tp13-notes.txt

diff --git a/SCR1.2/TP11/get_numb.c b/SCR1.2/TP11/get_numb.c
new file mode 100644
index 0000000..7c4450c
--- /dev/null
+++ b/SCR1.2/TP11/get_numb.c
@@ -0,0 +1,34 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+int main(int argc, char *argv[]){
+	if (argc != 3){
+		fprintf(stderr, "%c <file_name> <offset>", argv[0]);
+		exit(1);
+	}
+	off_t offset;
+	ssize_t nb_read;
+	int nb, n;
+	int fdin;
+	fdin = open(argv[1], O_RDONLY);
+	if (fdin == -1){
+		perror("File can't be opened");
+		exit(2);
+	}
+	offset = (off_t) strtol (argv[2], NULL, 0);
+	n = lseek(fdin, offset * sizeof(int), SEEK_SET);
+	if (!n){
+		perror("Offset is out of range!");
+		exit(3);
+	}
+	nb_read=read(fdin, &nb, sizeof(int));
+	if (nb_read < 0){
+		perror("File can't be read");
+		exit(4);
+	}
+	printf("The number at offset %s is %x --> %d\n", argv[2], nb, nb);
+	return EXIT_SUCCESS;
+}
+
diff --git a/SCR1.2/TP11/put_nub.c b/SCR1.2/TP11/put_nub.c
new file mode 100644
index 0000000..7663b78
--- /dev/null
+++ b/SCR1.2/TP11/put_nub.c
@@ -0,0 +1,27 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+int main(int argc, char *argv[]){
+	if (argc != 4){
+		fprintf(stderr, "%c <file_name> <32-bit in Hex> <Offset in Hex>", argv[0]);
+		exit(1);
+	}
+	off_t offset;
+	ssize_t nb_write;
+	int nb, n;
+	int fdin;
+	fdin = open(argv[1],O_WRONLY);
+	if (fdin == -1){
+		perror("File can't be opened");
+		exit(2);
+	}
+	offset = (off_t) strtol (argv[3], NULL, 16);
+	nb = (int) strtol(argv[2], NULL, 16);
+	n = lseek(fdin, offset * sizeof(int), SEEK_SET);
+	nb_write=write(fdin, &nb, sizeof(int));
+	printf("%x", nb);
+	return EXIT_SUCCESS;
+}
+
diff --git a/SCR1.2/TP11/test.dat* b/SCR1.2/TP11/test.dat*
new file mode 100644
index 0000000..e69de29
diff --git a/SCR1.2/TP11/test.txt b/SCR1.2/TP11/test.txt
index 32ba21e7f79e7629f639506a2d5a57bc13ba69c6..1f21a8f79ccc0a3dbed8f670d07e7a99a4ddc949 100644
GIT binary patch
literal 20
bcmXqTT+Lv{Wo~Z4WoX33z`)>QtRx5kCwK!S

literal 13
UcmXpp<uWwmGB>y2GBn}>01n3j0ssI2

diff --git a/SCR2.1/TP13/tp13-notes.txt b/SCR2.1/TP13/tp13-notes.txt
new file mode 100644
index 0000000..6f63b46
--- /dev/null
+++ b/SCR2.1/TP13/tp13-notes.txt
@@ -0,0 +1,20 @@
+Question 1)
+La commande ip addr permet d'afficher les interfaces réseau de notre machine
+
+Question 2)
+La commande ip addr show lo permet d'afficher l'interface réseau associée au loopback
+
+Question 3)
+La commande ip link show
+
+Question 4)
+ip link show eno1
+
+Question 5)
+ip neigh
+
+Question 6)
+ip neigh -r
+
+Question 7)
+ip route