int main(int argc, char *argv[]) {
char buf[NET_BUF];
int s, len, port;
char *server_name;
if(argc != 3) {
printf("usage: ./myftp <server> <port>\n");
return 0;
}
server_name = argv[1];
port = atoi(argv[2]);
s = get_client_socket(argv[1], port);
char line[BUF_SIZE];
help();
while(1) {
printf("myftp>>> ");
read_line(line);
if (strcmp(line, "DWLD") == 0) {
dwld(s);
} else if (strcmp(line, "UPLD") == 0) {
upld(s);
} else if (strcmp(line, "LIST") == 0) {
list(s);
} else if (strcmp(line, "MDIR") == 0) {
mdir(s);
} else if (strcmp(line, "RDIR") == 0) {
rdir(s);
} else if (strcmp(line, "CDIR") == 0) {
cdir(s);
} else if (strcmp(line, "DELF") == 0) {
delf(s);
} else if (strcmp(line, "HELP") == 0) {
help();
} else if (strcmp(line, "QUIT") == 0) {
printf("goodbye\n");
quit(s);
close(s);
break;
} else {
printf("Unrecognized command: %s\n", line);
}
}
return 0;
}
int loop(int sock) {
struct stat obj;
size_t size;
int success;
char buf[128], filename[96], command[8], *response;
int i = 1;
while(1)
{
printf("%s\n","Enter a command (ls, cd, pwd, rm, downl, upld, rpwd, rls, rcd, quit): ");
scanf("%s", command);
if(!strcmp(command, "ls")) {
if(ls()) {
printf("%s\n","The remote directory listing is as follows: ");
system("cat ls.txt");
system("rm ls.txt");
}
} else if(!strcmp(command, "cd")) {
printf("%s\n","Enter the path to change the directory: ");
scanf("%s", filename);
printf("%s\n", cd(filename) ? "Directory changed successfully !" : "Error when trying to change directory");
} else if(!strcmp(command, "pwd")) {
if(pwd()) {
printf("%s\n","The current directory name is: \n");
system("cat pwd.txt");
system("rm pwd.txt");
}
} else if(!strcmp(command, "rm")) {
printf("%s\n","Enter the filename to remove: ");
scanf("%s", filename);
printf("%s\n", rm(filename) ? "File removed successfully !" : "Error when trying to remove file");
} else if(!strcmp(command, "downl")) {
printf("%s\n","Enter filename to get: ");
scanf("%s", filename);
success = downl(sock, filename, buf, size, i);
printf(success ? "File successfully downloaded\n" : "Failed to download the requested file\n");
} else if(!strcmp(command, "upld")) {
printf("%s\n","Enter filename to put to server: ");
scanf("%s", filename);
success = upld(sock, filename, buf, obj, size);
printf("%s\n", success ? "File successfully uploaded\n" : "Failed to upload the given file\n");
} else if(!strcmp(command, "rpwd")) {
response = rpwd(sock, buf);
printf("%s%s\n","The current remote directory name is: ", response);
} else if(!strcmp(command, "rls")) {
success = rls(sock, buf, size);
if(success) {
printf("%s\n","The remote directory listing is as follows:\n");
system("cat temp.txt");
system("rm temp.txt");
}
} else if(!strcmp(command, "rcd")) {
printf("%s\n", "Enter the path to change the remote directory: ");
scanf("%s", filename);
success = rcd(sock, filename, buf);
printf("%s\n", success ? "Directory changed successfully !" : "Error when trying to change directory");
} else if(!strcmp(command, "quit")) {
success = quit(sock, buf);
if(success) {
printf("%s\n", "Server closed\nQuitting..\n");
return 0;
}
printf("%s\n", "Server failed to close the connection\n");
} else {
printf("%s\n", "Please choose a choice from the list.");
}
}
}
