Adding upstream version 3:4.8.30.upstream/3%4.8.30

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 230 insertions, 0 deletions

diff --git a/src/vfs/sftpfs/dir.c b/src/vfs/sftpfs/dir.c
new file mode 100644
index 0000000..a19a31f
--- /dev/null
+++ b/src/vfs/sftpfs/dir.c
@@ -0,0 +1,230 @@
+/* Virtual File System: SFTP file system.
+   The internal functions: dirs
+
+   Copyright (C) 2011-2023
+   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;
+    sftpfs_super_t *sftpfs_super;
+    const vfs_path_element_t *path_element;
+    LIBSSH2_SFTP_HANDLE *handle;
+    const GString *fixfname;
+
+    if (!sftpfs_op_init (&sftpfs_super, &path_element, vpath, mcerror))
+        return NULL;
+
+    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;
+    sftpfs_super_t *sftpfs_super;
+    const vfs_path_element_t *path_element;
+    const GString *fixfname;
+
+    if (!sftpfs_op_init (&sftpfs_super, &path_element, vpath, mcerror))
+        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;
+    sftpfs_super_t *sftpfs_super;
+    const vfs_path_element_t *path_element;
+    const GString *fixfname;
+
+    if (!sftpfs_op_init (&sftpfs_super, &path_element, vpath, mcerror))
+        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;
+}
+
+/* --------------------------------------------------------------------------------------------- */