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-rw-r--r--src/vfs/sftpfs/dir.c261
1 files changed, 261 insertions, 0 deletions
diff --git a/src/vfs/sftpfs/dir.c b/src/vfs/sftpfs/dir.c
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+++ b/src/vfs/sftpfs/dir.c
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+/* Virtual File System: SFTP file system.
+ The internal functions: dirs
+
+ Copyright (C) 2011-2022
+ Free Software Foundation, Inc.
+
+ Written by:
+ Ilia Maslakov <il.smind@gmail.com>, 2011
+ Slava Zanko <slavazanko@gmail.com>, 2011, 2012
+
+ This file is part of the Midnight Commander.
+
+ The Midnight Commander 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 3 of the License,
+ or (at your option) any later version.
+
+ The Midnight Commander 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+
+#include <libssh2.h>
+#include <libssh2_sftp.h>
+
+#include "lib/global.h"
+#include "lib/util.h"
+
+#include "internal.h"
+
+/*** global variables ****************************************************************************/
+
+/*** file scope macro definitions ****************************************************************/
+
+/*** file scope type declarations ****************************************************************/
+
+typedef struct
+{
+ LIBSSH2_SFTP_HANDLE *handle;
+ sftpfs_super_t *super;
+} sftpfs_dir_data_t;
+
+/*** file scope variables ************************************************************************/
+
+/*** file scope functions ************************************************************************/
+/* --------------------------------------------------------------------------------------------- */
+
+/* --------------------------------------------------------------------------------------------- */
+/*** public functions ****************************************************************************/
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Open a directory stream corresponding to the directory name.
+ *
+ * @param vpath path to directory
+ * @param mcerror pointer to the error handler
+ * @return directory data handler if success, NULL otherwise
+ */
+
+void *
+sftpfs_opendir (const vfs_path_t * vpath, GError ** mcerror)
+{
+ sftpfs_dir_data_t *sftpfs_dir;
+ struct vfs_s_super *super;
+ sftpfs_super_t *sftpfs_super;
+ const vfs_path_element_t *path_element;
+ LIBSSH2_SFTP_HANDLE *handle;
+ const GString *fixfname;
+
+ mc_return_val_if_error (mcerror, NULL);
+
+ path_element = vfs_path_get_by_index (vpath, -1);
+
+ if (vfs_s_get_path (vpath, &super, 0) == NULL)
+ return NULL;
+
+ sftpfs_super = SFTP_SUPER (super);
+
+ fixfname = sftpfs_fix_filename (path_element->path);
+
+ while (TRUE)
+ {
+ int libssh_errno;
+
+ handle =
+ libssh2_sftp_open_ex (sftpfs_super->sftp_session, fixfname->str, fixfname->len, 0, 0,
+ LIBSSH2_SFTP_OPENDIR);
+ if (handle != NULL)
+ break;
+
+ libssh_errno = libssh2_session_last_errno (sftpfs_super->session);
+ if (!sftpfs_waitsocket (sftpfs_super, libssh_errno, mcerror))
+ return NULL;
+ }
+
+ sftpfs_dir = g_new0 (sftpfs_dir_data_t, 1);
+ sftpfs_dir->handle = handle;
+ sftpfs_dir->super = sftpfs_super;
+
+ return (void *) sftpfs_dir;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Get a pointer to a structure representing the next directory entry.
+ *
+ * @param data directory data handler
+ * @param mcerror pointer to the error handler
+ * @return information about direntry if success, NULL otherwise
+ */
+
+struct vfs_dirent *
+sftpfs_readdir (void *data, GError ** mcerror)
+{
+ char mem[BUF_MEDIUM];
+ LIBSSH2_SFTP_ATTRIBUTES attrs;
+ sftpfs_dir_data_t *sftpfs_dir = (sftpfs_dir_data_t *) data;
+ int rc;
+
+ mc_return_val_if_error (mcerror, NULL);
+
+ do
+ {
+ rc = libssh2_sftp_readdir (sftpfs_dir->handle, mem, sizeof (mem), &attrs);
+ if (rc >= 0)
+ break;
+
+ if (!sftpfs_waitsocket (sftpfs_dir->super, rc, mcerror))
+ return NULL;
+ }
+ while (rc == LIBSSH2_ERROR_EAGAIN);
+
+ return (rc != 0 ? vfs_dirent_init (NULL, mem, 0) : NULL); /* FIXME: inode */
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Close the directory stream.
+ *
+ * @param data directory data handler
+ * @param mcerror pointer to the error handler
+ * @return 0 if success, negative value otherwise
+ */
+
+int
+sftpfs_closedir (void *data, GError ** mcerror)
+{
+ int rc;
+ sftpfs_dir_data_t *sftpfs_dir = (sftpfs_dir_data_t *) data;
+
+ mc_return_val_if_error (mcerror, -1);
+
+ rc = libssh2_sftp_closedir (sftpfs_dir->handle);
+ g_free (sftpfs_dir);
+ return rc;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Create a new directory.
+ *
+ * @param vpath path directory
+ * @param mode mode (see man 2 open)
+ * @param mcerror pointer to the error handler
+ * @return 0 if success, negative value otherwise
+ */
+
+int
+sftpfs_mkdir (const vfs_path_t * vpath, mode_t mode, GError ** mcerror)
+{
+ int res;
+ struct vfs_s_super *super;
+ sftpfs_super_t *sftpfs_super;
+ const vfs_path_element_t *path_element;
+ const GString *fixfname;
+
+ mc_return_val_if_error (mcerror, -1);
+
+ path_element = vfs_path_get_by_index (vpath, -1);
+
+ if (vfs_s_get_path (vpath, &super, 0) == NULL)
+ return -1;
+
+ if (super == NULL)
+ return -1;
+
+ sftpfs_super = SFTP_SUPER (super);
+ if (sftpfs_super->sftp_session == NULL)
+ return -1;
+
+ fixfname = sftpfs_fix_filename (path_element->path);
+
+ do
+ {
+ res =
+ libssh2_sftp_mkdir_ex (sftpfs_super->sftp_session, fixfname->str, fixfname->len, mode);
+ if (res >= 0)
+ break;
+
+ if (!sftpfs_waitsocket (sftpfs_super, res, mcerror))
+ return -1;
+ }
+ while (res == LIBSSH2_ERROR_EAGAIN);
+
+ return res;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Remove a directory.
+ *
+ * @param vpath path directory
+ * @param mcerror pointer to the error handler
+ * @return 0 if success, negative value otherwise
+ */
+
+int
+sftpfs_rmdir (const vfs_path_t * vpath, GError ** mcerror)
+{
+ int res;
+ struct vfs_s_super *super;
+ sftpfs_super_t *sftpfs_super;
+ const vfs_path_element_t *path_element;
+ const GString *fixfname;
+
+ mc_return_val_if_error (mcerror, -1);
+
+ path_element = vfs_path_get_by_index (vpath, -1);
+
+ if (vfs_s_get_path (vpath, &super, 0) == NULL)
+ return -1;
+
+ if (super == NULL)
+ return -1;
+
+ sftpfs_super = SFTP_SUPER (super);
+ if (sftpfs_super->sftp_session == NULL)
+ return -1;
+
+ fixfname = sftpfs_fix_filename (path_element->path);
+
+ do
+ {
+ res = libssh2_sftp_rmdir_ex (sftpfs_super->sftp_session, fixfname->str, fixfname->len);
+ if (res >= 0)
+ break;
+
+ if (!sftpfs_waitsocket (sftpfs_super, res, mcerror))
+ return -1;
+ }
+ while (res == LIBSSH2_ERROR_EAGAIN);
+
+ return res;
+}
+
+/* --------------------------------------------------------------------------------------------- */
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