fgets and ssh

["Benoît Rouits" <brouits@free.fr>]

hello,
in a minimal shell tutorial written in C, i have a read_line function
that does:

char* read_line()
{
    char* line=NULL;
    line=(char*)malloc(512);
    line=fgets(line,512,stdin);
    return line;
}

then i parse this line to build a correct "argv" to pass to execvp()
everything works well when i use ssh interactively.

The problem i encounter is when i pass a command to ssh into this shell:

ssh -v guest@localhost ls
[...]
guest@localhost's password:
debug1: Authentication succeeded (password).
debug1: channel 0: new [client-session]
debug1: Entering interactive session.
debug1: Sending environment.
debug1: Sending env LANG = fr_FR.utf8
debug1: Sending command: ls
( here the shell waits )

the shell still waits for ls and i have to retype intaractively "ls" to
get the correct result:

ls
debug1: client_input_channel_req: channel 0 rtype exit-status reply 0
Desktop
Examples
debug1: channel 0: free: client-session, nchannels 1
debug1: Transferred: stdin 0, stdout 0, stderr 0 bytes in 61.4 seconds
debug1: Bytes per second: stdin 0.0, stdout 0.0, stderr 0.0
debug1: Exit status 9

any explanation would be greatly appreciated.

+ben