Socket « directory « C File Q&A

1. socket return 'No such file or directory"    stackoverflow.com

Linux GCC 4.4.2 I am doing some socket programming. However, I keep getting this error when I try and assign the sockfd from the socket function.

" Socket operation on non-socket"

2. how to list files in a directory in c program    stackoverflow.com

i m trying to write ftp server on linux. in this matter how can i list files in the directory on terminal by c program. maybe i can use exec function ...