creation du main + makefiles

main/client.c

@@ -0,0 +1,95 @@
+
+#include	<stdio.h>
+#include	<stdlib.h>
+#include	<errno.h>
+#include	<string.h>
+#include	<sys/types.h>
+#include	<sys/socket.h>
+#include	<netinet/in.h>
+#include	<arpa/inet.h>
+#include	<fcntl.h>
+#include	<signal.h>
+#include	<unistd.h>
+#define BUFSIZE 512
+#define MAXSERVERNAME 100
+int my_work(FILE *, int, struct sockaddr * ,socklen_t);
+
+int main( int C, char *argv[] )
+{
+	int	sd, ret;
+	struct	sockaddr_in serveraddress;
+	if (NULL == argv[1])
+	{
+		printf("Please enter the IP Address of the server\n");
+		exit(1);
+	}
+	if (NULL== argv[2])
+	{
+		printf("Please enter the Port Number of the server\n");
+		exit(1);
+	}
+	sd = socket( AF_INET, SOCK_DGRAM, 0 );
+	if(0 > sd ) 
+	{
+		perror( "socket" );
+		exit (1);
+	}
+
+	memset( &serveraddress, 0, sizeof(serveraddress) );
+	serveraddress.sin_family = AF_INET;
+	serveraddress.sin_port = htons(atoi(argv[2]));//PORT NO
+	serveraddress.sin_addr.s_addr = inet_addr(argv[1]);//ADDRESS
+
+	printf("Client Starting service\n");
+
+	ret = my_work(stdin,sd ,(struct sockaddr *)&serveraddress,
+			sizeof(serveraddress));
+	if (0 > ret)
+	{
+		printf("Client Exiting - Some error occured\n");
+		close(sd);
+		exit(1);
+	}
+	close(sd);
+	exit(0);
+}
+
+
+
+int my_work(FILE *fp,		/*Here to be used as stdin as argument*/	 
+		int sockfd ,
+		struct sockaddr *to ,socklen_t length)	/*Connection Socket */
+{
+
+	char sendbuf[BUFSIZE], recvbuf[BUFSIZE],servername[MAXSERVERNAME];
+	char *cptr;
+	int ret, numbytes, slen;
+	socklen_t structlen;
+	struct sockaddr_in serveraddr;
+
+
+		while(1){
+		printf("Enter Data For the server or press CTRL-D to exit\n");
+		/*Reading data from the keyboard*/
+		cptr = fgets(sendbuf,BUFSIZE,fp);
+		if (NULL == cptr)
+		{
+			printf("Possible error or end of file\n");
+			return 0;
+		}
+		slen = strlen (sendbuf);
+		/*Sending the read data over socket*/
+		ret = sendto(sockfd,sendbuf,slen,0,to,length);
+		if (0 > ret)
+		{
+			perror("Error in sending data:\n");
+			return -1;
+		}
+		printf("Data Sent To Server---------------------\n");
+		}
+
+
+
+
+}
+

main/encrypt_func.c

@@ -0,0 +1,23 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+void encrypt(char * message, int degree) {
+
+	int n = 0, rotateSwap = 0;
+	int i;
+
+	for(i=0; i<strlen(message); i++){
+		if(message[i] >='a' && message[i] <='z'){
+			n = 'z' - message[i];
+			if( degree > n ){
+				rotateSwap = degree - n - 1;
+				message[i] = 'a';
+				message[i] += rotateSwap;
+			}  
+			else{
+				message[i] = message[i] + degree;
+			}
+		}
+	}
+}

main/encrypt_func.h

@@ -0,0 +1,10 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#ifndef ENCRYPT_H_INCLUDED
+#define ENCRYPT_H_INCLUDED
+
+void encrypt(char * message, int degree);
+
+#endif

main/main.c

@@ -0,0 +1,86 @@
+#include	<stdio.h>
+#include	<stdlib.h>
+#include	<errno.h>
+#include	<string.h>
+#include	<sys/types.h>
+#include	<sys/socket.h>
+#include	<netinet/in.h>
+#include	<arpa/inet.h>
+#include	<sys/wait.h>
+#include	<fcntl.h>
+#include	<signal.h>
+#include "encrypt_func.h"
+#include "morse_func.h"
+
+#define BUFSIZE 512
+#define MYPORT 69
+#define MAXNAME 100 
+
+
+int main(int argc,  char *argv[] )
+
+{
+	int	sd, numbytes,bytessent, ret;
+	struct	sockaddr_in
+	serveraddress,cliaddr;
+	socklen_t length;
+	char clientname[MAXNAME],datareceived[BUFSIZE];
+
+	sd = socket( AF_INET, SOCK_DGRAM, 0 );
+	if(0 > sd ) 
+	{
+		perror( "socket" );
+		exit( 1 );
+	}
+
+
+	memset( &serveraddress, 0, sizeof(serveraddress) );
+	memset( &cliaddr, 0, sizeof(cliaddr) );
+	serveraddress.sin_family = AF_INET;
+	serveraddress.sin_port = htons(MYPORT);//PORT NO
+	serveraddress.sin_addr.s_addr = htonl(INADDR_ANY);//IP ADDRESS
+	ret=bind(sd,(struct sockaddr*)&serveraddress,sizeof(serveraddress));
+	if(0 > ret)
+	{
+		perror("Bind Fails:");
+		exit(1);
+	}
+
+	printf("UDP Server:  Waiting for client data\n");
+	length=sizeof(cliaddr);
+
+
+	while(1){
+		// Chaine de caractere en morse
+		char * msg_morse = (char *) malloc(sizeof(char)*BUFSIZE);
+		/*Received a datagram*/
+		numbytes = recvfrom(sd,datareceived,BUFSIZE,0,
+			(struct sockaddr*)&cliaddr, &length);
+		if (0 > numbytes)
+		{
+			perror("Error while receiving:");
+			exit(1);
+		}
+		/*Printing client's address*/
+		printf("Data Received from %s\n",
+			inet_ntop(AF_INET,&cliaddr.sin_addr,
+				clientname,sizeof(clientname)));
+
+		/*Sending the Received datagram back*/
+		datareceived[numbytes]='\0';
+		printf("Server Receives: %s\n",datareceived);
+
+		encrypt(datareceived, 3);
+		printf("Message encrypted: %s\n", datareceived);
+
+		ascii2morse(datareceived, msg_morse);
+		printf("MORSE message: %s\n", msg_morse);
+
+		free(msg_morse);
+
+	}
+
+
+}
+
+

main/makefile

@@ -0,0 +1,5 @@
+CC = ~/Documents/tp-armadeus/armadeus/buildroot/output/host/usr/bin/arm-linux-gcc
+
+all: main.c encrypt_func.c morse_func.c
+	$(CC) -o main.o main.c encrypt_func.c morse_func.c -I.
+	scp main.o [email protected]:/home/tp/main.o

main/morse_func.c

@@ -0,0 +1,92 @@
+#include "morse_func.h"
+
+int ascii2morse(char *s, char *outmsg){
+
+	char *letters[] =  {
+			"1 -1 3 ",            // A | a
+			"3 -1 1 -1 1 -1 1 ",  // B | b
+			"3 -1 1 -1 3 -1 1 ",  // C | c
+			"3 -1 1 -1 1 ",       // D | d
+			"1 ",                 // E | e
+			"1 -1 1 -1 3 -1 1 ",  // F | f
+			"3 -1 3 -1 1 ",       // G | g
+			"1 -1 1 -1 1 -1 1 ",  // H | h
+			"1 -1 1 -1 ",         // I | i
+			"1 -1 3 -1 3 -1 3 ",  // J | j
+			"3 -1 1 -1 3 ",       // K | k
+			"1 -1 3 -1 1 -1 1 ",  // L | l
+			"3 -1 3 ",            // M | m
+			"3 -1 1 ",            // N | n
+			"3 -1 3 -1 3 ",       // O | o
+			"1 -1 3 -1 3 -1 1 ",  // P | p
+			"3 -1 3 -1 1 -1 3 ",  // Q | q
+			"1 -1 3 -1 1 ",       // R | r
+			"1 -1 1 -1 1 ",       // S | s
+			"3 ",                 // T | t
+			"1 -1 1 -1 3 ",       // U | u
+			"1 -1 1 -1 1 -1 3 ",  // V | v
+			"1 -1 3 -1 3 ",       // W | w
+			"3 -1 1 -1 1 -1 3 ",  // X | x
+			"3 -1 1 -1 3 -1 3 ",  // Y | y
+			"3 -1 3 -1 1 -1 1 "  // Z | z
+			};
+
+	char *numbers[] = {
+			"3 -1 3 -1 3 -1 3 -1 3 ",  // 0
+			"1 -1 3 -1 3 -1 3 -1 3 ",  // 1
+			"1 -1 1 -1 3 -1 3 -1 3 ",  // 2
+			"1 -1 1 -1 1 -1 3 -1 3 ",  // 3
+			"1 -1 1 -1 1 -1 1 -1 3 ",  // 4
+			"1 -1 1 -1 1 -1 1 -1 1 ",  // 5
+			"3 -1 1 -1 1 -1 1 -1 1 ",  // 6
+			"3 -1 3 -1 1 -1 1 -1 1 ",  // 7
+			"3 -1 3 -1 3 -1 1 -1 1 ",  // 8
+			"3 -1 3 -1 3 -1 3 -1 3 ",  // 9
+			};
+
+	int i, c;
+	for (i=0;i<strlen(s);i++){
+
+		c = s[i];	
+		if (c != ' '){
+			// selectionner le caractere
+			if((c <= 'z') && (c >= 'a'))
+				strcat(outmsg, letters[c - 'a']);
+
+			else if((c <= 'Z') && (c >= 'A'))
+				strcat(outmsg, letters[c - 'A']);	
+
+			else if((c <= '9') && (c >= '0'))
+				strcat(outmsg, numbers[c - '0']);	
+
+			else if(c == '.')
+				strcat(outmsg, "1 -1 3 -1 1 -1 3 -1 1 -1 3 ");
+
+			else if(c == ',')
+				strcat(outmsg, "3 -1 3 -1 1 -1 1 -1 3 -1 3 ");
+
+			else if(c == '?')
+				strcat(outmsg, "1 -1 1 -1 3 -1 3 -1 1 -1 1 ");
+
+			else if(c == '-')
+				strcat(outmsg, "3 -1 1 -1 1 -1 1 -1 1 -1 3 ");
+
+			else // caractere non valide
+				printf("Le caracter %c n'est pas valide \nValeur en ASCII = %d\ni = %d",s[i],s[i],i);
+
+			// espace entre elements
+			if (s[i+2] == '\0')
+				break;
+			if (s[i+1] != ' ')
+				strcat(outmsg, "-3 "); // entre elements
+			else{
+				strcat(outmsg, "-7 "); // fin d'un mot
+				i++;
+			}
+		}
+	}	
+
+	//fclose(f);
+
+	return EXIT_SUCCESS;
+}

main/morse_func.h

@@ -0,0 +1,10 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#ifndef FUNCTIONS_H_INCLUDED
+#define FUNCTIONS_H_INCLUDED
+
+int ascii2morse(char *s, char *outmsg);
+
+#endif