1 files changed, 107 insertions, 0 deletions
diff --git a/libftpconn/cwd.c b/libftpconn/cwd.c
new file mode 100644
index 00000000..89156a58
--- /dev/null
+++ b/libftpconn/cwd.c
@@ -0,0 +1,107 @@
+/* Get/set connection current working directory
+
+   Copyright (C) 1997 Free Software Foundation, Inc.
+
+   Written by Miles Bader <miles@gnu.ai.mit.edu>
+
+   This program is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation; either version 2, or (at
+   your option) any later version.
+
+   This program is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#include <unistd.h>
+#include <errno.h>
+#include <string.h>
+
+#include <ftpconn.h>
+#include "priv.h"
+
+static error_t
+_cache_cwd (struct ftp_conn *conn, int reopen)
+{
+  int reply;
+  const char *txt;
+  error_t err =
+    (reopen ? ftp_conn_cmd_reopen : ftp_conn_cmd) (conn, "pwd", 0, &reply, &txt);
+
+  if (! err)
+    if (reply == REPLY_DIR_NAME)
+      {
+	char *cwd = malloc (strlen (txt));
+	if (! cwd)
+	  err = ENOMEM;
+	else if (sscanf (txt, "\"%[^\"]\"", cwd) != 1)
+	  err = EGRATUITOUS;
+	else
+	  {
+	    if (conn->cwd)
+	      free (conn->cwd);
+	    conn->cwd = cwd;
+	  }
+      }
+    else
+      err = unexpected_reply (conn, reply, txt, 0);
+
+  return err;
+}
+
+/* Return a malloced string containing CONN's working directory in CWD.  */
+error_t
+ftp_conn_get_cwd (struct ftp_conn *conn, char **cwd)
+{
+  error_t err = 0;
+  if (! conn->cwd)
+    err = _cache_cwd (conn, 1);
+  if (! err)
+    {
+      *cwd = strdup (conn->cwd);
+      if (! *cwd)
+	err = ENOMEM;
+    }
+  return err;
+}
+
+/* Return a malloced string containing CONN's working directory in CWD.  */
+error_t
+ftp_conn_cwd (struct ftp_conn *conn, const char *cwd)
+{
+  error_t err = 0;
+  if (conn->cwd && strcmp (conn->cwd, cwd) == 0)
+    err = 0;
+  else
+    {
+      int reply;
+      const char *txt;
+      err = ftp_conn_cmd_reopen (conn, "cwd", cwd, &reply, &txt);
+      if (! err)
+	if (reply == REPLY_FCMD_OK)
+	  err = _cache_cwd (conn, 0);
+	else
+	  err = unexpected_reply (conn, reply, txt, ftp_conn_poss_file_errs);
+    }
+  return err;
+}
+
+/* Return a malloced string containing CONN's working directory in CWD.  */
+error_t
+ftp_conn_cdup (struct ftp_conn *conn)
+{
+  int reply;
+  const char *txt;
+  error_t err = ftp_conn_cmd_reopen (conn, "cdup", 0, &reply, &txt);
+  if (! err)
+    if (reply == REPLY_OK)
+      err = _cache_cwd (conn, 0);
+    else
+      err = unexpected_reply (conn, reply, txt, ftp_conn_poss_file_errs);
+  return err;
+}