// Listen for incoming SSH connections.
// When a connection is established, write all data received to stdout.
void server_pipe(char *host, int port)
{
ssh_bind b = ssh_bind_new();
ssh_session s = ssh_new();
ssh_bind_options_set(b, SSH_BIND_OPTIONS_BINDADDR, host);
ssh_bind_options_set(b, SSH_BIND_OPTIONS_BINDPORT, &port);
ssh_bind_options_set(b, SSH_BIND_OPTIONS_RSAKEY, "test-server-key");
ssh_bind_options_set(b, SSH_BIND_OPTIONS_LOG_VERBOSITY_STR, "5");
if(ssh_bind_listen(b) < 0)
session_error(b, "listen");
if(ssh_bind_accept(b, s) != SSH_OK)
session_error(b, "accept");
if(ssh_accept(s) < 0)
session_error(s, "handshake");
int state = SERVER_CONNECTED;
while(1)
{
ssh_message m = ssh_message_get(s);
if(m)
{
int type = ssh_message_type(m);
int subtype = ssh_message_subtype(m);
ssh_message_auth_set_methods(m, SSH_AUTH_METHOD_PUBLICKEY);
server_handle_message(s, m, type, subtype, &state);
ssh_message_free(m);
if(state == SERVER_CLOSED)
{
ssh_disconnect(s);
ssh_bind_free(b);
ssh_finalize();
return;
}
}
else
{
session_error(s, "session");
}
}
}
int main(int argc, char **argv){
SSH_OPTIONS *options=ssh_options_new();
SSH_SESSION *session;
SSH_BIND *ssh_bind;
CHANNEL *chan=NULL;
SFTP_SESSION *sftp=NULL;
int ret;
int donotfork=0;
char *config="mercurius.conf";
ssh_options_getopt(options,&argc,argv);
while((ret=getopt(argc, argv, "Df:"))!=-1){
switch(ret){
case 'D':
donotfork=1;
break;
case 'f':
config=strdup(optarg);
break;
case '?':
usage(argv[0]);
exit(1);
}
}
if(optind<argc) {
usage(argv[0]);
exit(1);
}
ret=parse_config(config);
if(ret != 0){
printf("Error parsing configuration file\n");
return 1;
}
if(!rsa && !dsa){
printf("There must be at least one RSA or DSA host key\n");
return 1;
}
if(dsa)
ssh_options_set_dsa_server_key(options,dsa);
if(rsa)
ssh_options_set_rsa_server_key(options,rsa);
//printf("port : %d\n",port);
if(port!=0)
ssh_options_set_port(options,port);
ssh_bind=ssh_bind_new();
ssh_bind_set_options(ssh_bind,options);
if(ssh_bind_listen(ssh_bind)<0){
printf("Error listening to socket: %s\n",ssh_get_error(ssh_bind));
return 1;
}
signal(SIGCHLD,SIG_IGN);
if(!donotfork){
ssh_say(1,"Going into background...\n");
if(fork()){
exit(0);
}
}
while(1){
session=ssh_bind_accept(ssh_bind);
if(!session){
printf("error accepting a connection : %s\n",ssh_get_error(ssh_bind));
return 1;
}
if(fork()==0){
break;
}
ssh_silent_disconnect(session);
}
ssh_bind_free(ssh_bind);
//printf("Socket connected : %d\n",ssh_get_fd(session));
if(ssh_accept(session)){
printf("ssh_accept : %s\n",ssh_get_error(session));
return 1;
}
if(do_auth(session)<0){
printf("error : %s\n",ssh_get_error(session));
return 1;
}
ssh_say(1,"user authenticated\n");
chan=recv_channel(session);
if(!chan){
printf("error : %s\n",ssh_get_error(session));
return 1;
}
sftp=sftp_server_new(session,chan);
if(sftp_server_init(sftp)){
printf("error : %s\n",ssh_get_error(session));
return 1;
}
ssh_say(1,"Sftp session open by client\n");
sftploop(session,sftp);
ssh_say(1,"Client disconnected\n");
ssh_disconnect(session);
return 0;
}
