Bug report #1823487 (http://curl.haxx.se/bug/view.cgi?id=1823487) pointed

                                  Changelog

Daniel S (8 Nov 2007)

- Bug report #1823487 (http://curl.haxx.se/bug/view.cgi?id=1823487) pointed

  out that SFTP requests didn't use persistent connections. Neither did SCP

  ones.  I gave the SSH code a good beating and now both SCP and SFTP should

  use persistent connections fine. I also did a bunch for indent changes as

  well as a bug fix for the "keyboard interactive" auth.

Dan F (6 Nov 2007)

- Improved telnet support by drastically reducing the number of write

  callbacks needed to pass a buffer to the user.  Instead one per byte it

 Command line options:         121

 curl_easy_setopt() options:   147

 Public functions in libcurl:  55

 Public web site mirrors:      41

 Public web site mirrors:      42

 Known libcurl bindings:       36

 Contributors:                 597

   with NSS, and also when SCP, SFTP and libz are not available

 o free problem in the curl tool for users with empty home dir

 o curl.h version 7.17.1 problem when building C++ apps with MSVC

 o SFTP and SCP use persistent connections

This release includes the following known bugs:

This release would not have looked like this without help, code, reports and

advice from friends like these:

 Dan Fandrich, Gisle Vanem, Toby Peterson

 Dan Fandrich, Gisle Vanem, Toby Peterson, Yang Tse

        Thanks! (and sorry if I forgot to mention someone)

typedef enum {

  SSH_NO_STATE = -1,  /* Used for "nextState" so say there is none */

  SSH_STOP = 0,       /* do nothing state, stops the state machine */

  SSH_S_STARTUP,      /* Session startup */

  SSH_S_STARTUP,      /* Session startup, First rate in SSH-CONNECT */

  SSH_AUTHLIST,

  SSH_AUTH_PKEY_INIT,

  SSH_AUTH_PKEY,

  SSH_AUTH_KEY,

  SSH_AUTH_DONE,

  SSH_SFTP_INIT,

  SSH_SFTP_REALPATH,

  SSH_GET_WORKINGPATH,

  SSH_SFTP_QUOTE_INIT,

  SSH_SFTP_POSTQUOTE_INIT,

  SSH_SFTP_REALPATH,   /* Last state in SSH-CONNECT */

  SSH_SFTP_QUOTE_INIT, /* First state in SFTP-DO */

  SSH_SFTP_POSTQUOTE_INIT, /* (Possibly) First state in SFTP-DONE */

  SSH_SFTP_QUOTE,

  SSH_SFTP_NEXT_QUOTE,

  SSH_SFTP_QUOTE_STAT,

  SSH_SFTP_READDIR_BOTTOM,

  SSH_SFTP_READDIR_DONE,

  SSH_SFTP_DOWNLOAD_INIT,

  SSH_SFTP_DOWNLOAD_STAT,

  SSH_SFTP_CLOSE,

  SSH_SFTP_SHUTDOWN,

  SSH_SCP_TRANS_INIT,

  SSH_SFTP_DOWNLOAD_STAT, /* Last state in SFTP-DO */

  SSH_SFTP_CLOSE,    /* Last state in SFTP-DONE */

  SSH_SFTP_SHUTDOWN, /* First state in SFTP-DISCONNECT */

  SSH_SCP_TRANS_INIT, /* First state in SCP-DO */

  SSH_SCP_UPLOAD_INIT,

  SSH_SCP_DOWNLOAD_INIT,

  SSH_SCP_DONE,

  SSH_SCP_SEND_EOF,

  SSH_SCP_WAIT_EOF,

  SSH_SCP_WAIT_CLOSE,

  SSH_SCP_CHANNEL_FREE,

  SSH_CHANNEL_CLOSE,

  SSH_SESSION_DISCONECT,

  SSH_SESSION_FREE,

  SSH_SCP_CHANNEL_FREE,   /* Last state in SCP-DONE */

  SSH_SESSION_DISCONNECT, /* First state in SCP-DISCONNECT */

  SSH_SESSION_FREE,       /* Last state in SCP/SFTP-DISCONNECT */

  SSH_QUIT,

  SSH_LAST  /* never used */

} sshstate;

   struct. */

struct SSHPROTO {

  curl_off_t *bytecountp;

  char *user;

  char *passwd;

  char *path;                   /* the path we operate on */

  char *homedir;

  char *errorstr;

};

/* ssh_conn is used for struct connection-oriented data in the connectdata

  char *rsa;                  /* path name */

  bool authed;                /* the connection has been authenticated fine */

  sshstate state;             /* always use ssh.c:state() to change state! */

  sshstate nextState;         /* the state to goto after stopping */

  CURLcode actualCode;        /* the actual error code */

  sshstate nextstate;         /* the state to goto after stopping */

  CURLcode actualcode;        /* the actual error code */

  struct curl_slist *quote_item; /* for the quote option */

  char *quote_path1;          /* two generic pointers for the QUOTE stuff */

  char *quote_path2;

  LIBSSH2_SFTP_ATTRIBUTES quote_attrs; /* used by the SFTP_QUOTE state */

  char *homedir;              /* when doing SFTP we figure out home dir in the

                                 connect phase */

  /* Here's a set of struct members used by the SFTP_READDIR state */

  LIBSSH2_SFTP_ATTRIBUTES readdir_attrs;