Client/Server Communication

client
#include <stdio.h>
#include <stdlib.h>            //Added
#include "cnaiapi.h"            //Added
 
 
#define MAX_CNAME               10                    //Added
 
 
int recvln(connection, char *, int);        //Added
int readln(char *, int);            //Added
 
int                                          //Added
main(int argc, char *argv[])             //Added
{
    FILE *fp;
    char ch;
    computer    comp;               //Added
    connection    conn;               //Added
    char            cname[MAX_CNAME];   //Added
    int        len;            //Added
 
    if (argc != 3) {                                                         //Added
        (void) fprintf(stderr, "usage: %s <compname> <appnum>\n",        //Added
                   argv[0]);                     //Added
        exit(1);                             //Added
    }                                      //Added
 
    /* convert the compname to binary form comp */                           //Added
 
    comp = cname_to_comp(argv[1]);                         //Added
    if (comp == -1)                                 //Added
        exit(1);                             //Added
 
    /* Input File Name to use */                        //Added     
    printf ("Enter The name of the file to retrieve. \n");                //Added
    len = readln( cname, MAX_CNAME);                    //Added
 
    /* make a connection to the chatserver */                   //Added
 
    conn = make_contact(comp, (appnum) atoi(argv[2]));            //Added
    if (conn < 0)                                 //Added
        exit(1);                                //Added
 
    (void) printf("Chat Connection Established.\n");                        //Added
 
 
 
 
    // OPEN THE FILE => LOAD THE CONTENT OF THE FILE IN MEMORY
    fp = fopen("log.txt", "r");        //Here we have to open the file that was enter to retrieve above and len instead of log.txt does not work 
    if (fp == NULL){
        printf("We were not able to open the file\n");
        exit(0);
    }
 
    // PRINT THE FILE INTO THE SCREEN
    /*while (1){
        ch = fgetc(fp);
        if (ch == EOF){
            // HERE WE FOUND THE END OF THE FILE
            break;
        }
        printf("%c",ch);
    }*/
 
    fclose(fp);
    return 1;
}

#include <stdio.h>
#include <stdlib.h>                          //Added
#include "cnaiapi.h"                 //Added
 
int recvln(connection, char *, int);       //Added
int readln(char *, int);                   //Added
 
int                                        //Added
main(int argc, char *argv[])           //Added
{
    int        len;                 //Added
    computer comp;                               //Added
    connection  conn;                            //Added    
    FILE *fp;
    char ch;
 
    if (argc != 2) {                                                       //Added
        (void) fprintf(stderr, "usage: %s <appnum>\n", argv[0]);       // Added
        exit(1);                              // Added
    }                                     // Added
 
 
    (void) printf("Chat Server Waiting For Connection.\n");     //Added
 
    /* wait for a connection from a chatclient */                //Added
 
    conn = await_contact((appnum) atoi(argv[1]));           //Added
    if (conn < 0)                           //Added
        exit(1);                         //Added
     
    (void) printf("Chat Connection Established.\n");         //Added
 
 
 
    // OPEN THE FILE => LOAD THE CONTENT OF THE FILE IN MEMORY
    fp = fopen("log.txt", "r");
    if (fp == NULL){
        printf("We were not able to open the file\n");
        exit(0);
    }
 
        (void) send(conn, fp,len, 0);  //  I NEED HELP HERE !?!?!?!?!?!?!?
 
    // PRINT THE FILE INTO THE SCREEN
    /*while (1){
        ch = fgetc(fp);
        if (ch == EOF){
            // HERE WE FOUND THE END OF THE FILE
            break;
        }
        printf("%c",ch);
    }
 
    fclose(fp);   */
    return 1;
}