send file

I am sending a file from client to server by partition the file small part which size is 2048 and send each part . Below is my code. Please advise. tks.

FILE *fp;
       fp= fopen(t.c_str(),"r");// t is the filename string
       if(fp == NULL)
       {
            printf("error to open %s",t.c_str());
            exit(1);
       }
       fseek(fp, 0, SEEK_END);
       int size = ftell(fp);
       rewind(fp);
       int count = size/2048;
       int remainder = size %2048;
     
       char * buffer = (char*)malloc(sizeof(char) *size);
       char *p;
       p= buffer;

       // copy the file into the buffer:
       int result = fread (buffer,1,size,fp);
       
       if (result != size)
       {
            printf(" Reading error",stderr);
       }
       
       if( count >= 2048)
       {
             for( int i= 0; i < count;i++)
             {
                  send(sock, p, 2048,0);
                  p = p+2048;
             }
       
             //send the remainder trunk
             send(sock, p, remainder, 0);
       }
       else
       {
             send(sock, p, size, 0);
       }