From: Colin Walters <walters@verbum.org>
Date: Fri, 19 Feb 2010 17:39:56 +0000 (-0500)
Subject: Finish moving file-related functions from dbus-sysdeps-unix to dbus-file-unix
X-Git-Tag: dbus-1.3.1~116
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=235eebdb1618ecdd0f752c9bcd92c61d17752e0b;p=thirdparty%2Fdbus.git

Finish moving file-related functions from dbus-sysdeps-unix to dbus-file-unix
---

diff --git a/dbus/dbus-file-unix.c b/dbus/dbus-file-unix.c
index 95582d5cb..363a278a8 100644
--- a/dbus/dbus-file-unix.c
+++ b/dbus/dbus-file-unix.c
@@ -23,7 +23,23 @@
  */
 
 #include <config.h>
+
+#include "dbus-protocol.h"
+#include "dbus-errors.h"
 #include "dbus-file.h"
+#include "dbus-internals.h"
+#include "dbus-sysdeps.h"
+#include "dbus-sysdeps-unix.h"
+
+#include <sys/stat.h>
+#include <stdio.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <errno.h>
+
+#ifndef O_BINARY
+#define O_BINARY 0
+#endif
 
 /**
  * Appends the contents of the given file to the string,
diff --git a/dbus/dbus-sysdeps-unix.c b/dbus/dbus-sysdeps-unix.c
index 1c72327f2..fc27d5123 100644
--- a/dbus/dbus-sysdeps-unix.c
+++ b/dbus/dbus-sysdeps-unix.c
@@ -2378,365 +2378,6 @@ _dbus_get_current_time (long *tv_sec,
 #endif
 }
 
-/**
- * Appends the contents of the given file to the string,
- * returning error code. At the moment, won't open a file
- * more than a megabyte in size.
- *
- * @param str the string to append to
- * @param filename filename to load
- * @param error place to set an error
- * @returns #FALSE if error was set
- */
-dbus_bool_t
-_dbus_file_get_contents (DBusString       *str,
-                         const DBusString *filename,
-                         DBusError        *error)
-{
-  int fd;
-  struct stat sb;
-  int orig_len;
-  int total;
-  const char *filename_c;
-
-  _DBUS_ASSERT_ERROR_IS_CLEAR (error);
-  
-  filename_c = _dbus_string_get_const_data (filename);
-  
-  /* O_BINARY useful on Cygwin */
-  fd = open (filename_c, O_RDONLY | O_BINARY);
-  if (fd < 0)
-    {
-      dbus_set_error (error, _dbus_error_from_errno (errno),
-                      "Failed to open \"%s\": %s",
-                      filename_c,
-                      _dbus_strerror (errno));
-      return FALSE;
-    }
-
-  _dbus_verbose ("file fd %d opened\n", fd);
-  
-  if (fstat (fd, &sb) < 0)
-    {
-      dbus_set_error (error, _dbus_error_from_errno (errno),
-                      "Failed to stat \"%s\": %s",
-                      filename_c,
-                      _dbus_strerror (errno));
-
-      _dbus_verbose ("fstat() failed: %s",
-                     _dbus_strerror (errno));
-      
-      _dbus_close (fd, NULL);
-      
-      return FALSE;
-    }
-
-  if (sb.st_size > _DBUS_ONE_MEGABYTE)
-    {
-      dbus_set_error (error, DBUS_ERROR_FAILED,
-                      "File size %lu of \"%s\" is too large.",
-                      (unsigned long) sb.st_size, filename_c);
-      _dbus_close (fd, NULL);
-      return FALSE;
-    }
-  
-  total = 0;
-  orig_len = _dbus_string_get_length (str);
-  if (sb.st_size > 0 && S_ISREG (sb.st_mode))
-    {
-      int bytes_read;
-
-      while (total < (int) sb.st_size)
-        {
-          bytes_read = _dbus_read (fd, str,
-                                   sb.st_size - total);
-          if (bytes_read <= 0)
-            {
-              dbus_set_error (error, _dbus_error_from_errno (errno),
-                              "Error reading \"%s\": %s",
-                              filename_c,
-                              _dbus_strerror (errno));
-
-              _dbus_verbose ("read() failed: %s",
-                             _dbus_strerror (errno));
-              
-              _dbus_close (fd, NULL);
-              _dbus_string_set_length (str, orig_len);
-              return FALSE;
-            }
-          else
-            total += bytes_read;
-        }
-
-      _dbus_close (fd, NULL);
-      return TRUE;
-    }
-  else if (sb.st_size != 0)
-    {
-      _dbus_verbose ("Can only open regular files at the moment.\n");
-      dbus_set_error (error, DBUS_ERROR_FAILED,
-                      "\"%s\" is not a regular file",
-                      filename_c);
-      _dbus_close (fd, NULL);
-      return FALSE;
-    }
-  else
-    {
-      _dbus_close (fd, NULL);
-      return TRUE;
-    }
-}
-
-/**
- * Writes a string out to a file. If the file exists,
- * it will be atomically overwritten by the new data.
- *
- * @param str the string to write out
- * @param filename the file to save string to
- * @param error error to be filled in on failure
- * @returns #FALSE on failure
- */
-dbus_bool_t
-_dbus_string_save_to_file (const DBusString *str,
-                           const DBusString *filename,
-                           DBusError        *error)
-{
-  int fd;
-  int bytes_to_write;
-  const char *filename_c;
-  DBusString tmp_filename;
-  const char *tmp_filename_c;
-  int total;
-  dbus_bool_t need_unlink;
-  dbus_bool_t retval;
-
-  _DBUS_ASSERT_ERROR_IS_CLEAR (error);
-  
-  fd = -1;
-  retval = FALSE;
-  need_unlink = FALSE;
-  
-  if (!_dbus_string_init (&tmp_filename))
-    {
-      dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
-      return FALSE;
-    }
-
-  if (!_dbus_string_copy (filename, 0, &tmp_filename, 0))
-    {
-      dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
-      _dbus_string_free (&tmp_filename);
-      return FALSE;
-    }
-  
-  if (!_dbus_string_append (&tmp_filename, "."))
-    {
-      dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
-      _dbus_string_free (&tmp_filename);
-      return FALSE;
-    }
-
-#define N_TMP_FILENAME_RANDOM_BYTES 8
-  if (!_dbus_generate_random_ascii (&tmp_filename, N_TMP_FILENAME_RANDOM_BYTES))
-    {
-      dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
-      _dbus_string_free (&tmp_filename);
-      return FALSE;
-    }
-    
-  filename_c = _dbus_string_get_const_data (filename);
-  tmp_filename_c = _dbus_string_get_const_data (&tmp_filename);
-
-  fd = open (tmp_filename_c, O_WRONLY | O_BINARY | O_EXCL | O_CREAT,
-             0600);
-  if (fd < 0)
-    {
-      dbus_set_error (error, _dbus_error_from_errno (errno),
-                      "Could not create %s: %s", tmp_filename_c,
-                      _dbus_strerror (errno));
-      goto out;
-    }
-
-  _dbus_verbose ("tmp file fd %d opened\n", fd);
-  
-  need_unlink = TRUE;
-  
-  total = 0;
-  bytes_to_write = _dbus_string_get_length (str);
-
-  while (total < bytes_to_write)
-    {
-      int bytes_written;
-
-      bytes_written = _dbus_write (fd, str, total,
-                                   bytes_to_write - total);
-
-      if (bytes_written <= 0)
-        {
-          dbus_set_error (error, _dbus_error_from_errno (errno),
-                          "Could not write to %s: %s", tmp_filename_c,
-                          _dbus_strerror (errno));
-          
-          goto out;
-        }
-
-      total += bytes_written;
-    }
-
-  if (fsync(fd))
-    {
-      dbus_set_error (error, _dbus_error_from_errno (errno),
-                      "Could not synchronize file %s: %s",
-                      tmp_filename_c, _dbus_strerror (errno));
-
-      goto out;
-  }
-
-  if (!_dbus_close (fd, NULL))
-    {
-      dbus_set_error (error, _dbus_error_from_errno (errno),
-                      "Could not close file %s: %s",
-                      tmp_filename_c, _dbus_strerror (errno));
-
-      goto out;
-    }
-
-  fd = -1;
-  
-  if (rename (tmp_filename_c, filename_c) < 0)
-    {
-      dbus_set_error (error, _dbus_error_from_errno (errno),
-                      "Could not rename %s to %s: %s",
-                      tmp_filename_c, filename_c,
-                      _dbus_strerror (errno));
-
-      goto out;
-    }
-
-  need_unlink = FALSE;
-  
-  retval = TRUE;
-  
- out:
-  /* close first, then unlink, to prevent ".nfs34234235" garbage
-   * files
-   */
-
-  if (fd >= 0)
-    _dbus_close (fd, NULL);
-        
-  if (need_unlink && unlink (tmp_filename_c) < 0)
-    _dbus_verbose ("Failed to unlink temp file %s: %s\n",
-                   tmp_filename_c, _dbus_strerror (errno));
-
-  _dbus_string_free (&tmp_filename);
-
-  if (!retval)
-    _DBUS_ASSERT_ERROR_IS_SET (error);
-  
-  return retval;
-}
-
-/** Makes the file readable by every user in the system.
- *
- * @param filename the filename
- * @param error error location
- * @returns #TRUE if the file's permissions could be changed.
- */
-dbus_bool_t
-_dbus_make_file_world_readable(const DBusString *filename,
-                               DBusError *error)
-{
-  const char *filename_c;
-
-  _DBUS_ASSERT_ERROR_IS_CLEAR (error);
-
-  filename_c = _dbus_string_get_const_data (filename);
-  if (chmod (filename_c, 0644) == -1)
-    {
-      dbus_set_error (error,
-                      DBUS_ERROR_FAILED,
-                      "Could not change permissions of file %s: %s\n",
-                      filename_c,
-                      _dbus_strerror (errno));
-      return FALSE;
-    }
-  return TRUE;
-}
-
-/** Creates the given file, failing if the file already exists.
- *
- * @param filename the filename
- * @param error error location
- * @returns #TRUE if we created the file and it didn't exist
- */
-dbus_bool_t
-_dbus_create_file_exclusively (const DBusString *filename,
-                               DBusError        *error)
-{
-  int fd;
-  const char *filename_c;
-
-  _DBUS_ASSERT_ERROR_IS_CLEAR (error);
-  
-  filename_c = _dbus_string_get_const_data (filename);
-  
-  fd = open (filename_c, O_WRONLY | O_BINARY | O_EXCL | O_CREAT,
-             0600);
-  if (fd < 0)
-    {
-      dbus_set_error (error,
-                      DBUS_ERROR_FAILED,
-                      "Could not create file %s: %s\n",
-                      filename_c,
-                      _dbus_strerror (errno));
-      return FALSE;
-    }
-
-  _dbus_verbose ("exclusive file fd %d opened\n", fd);
-  
-  if (!_dbus_close (fd, NULL))
-    {
-      dbus_set_error (error,
-                      DBUS_ERROR_FAILED,
-                      "Could not close file %s: %s\n",
-                      filename_c,
-                      _dbus_strerror (errno));
-      return FALSE;
-    }
-  
-  return TRUE;
-}
-
-/**
- * Deletes the given file.
- *
- * @param filename the filename
- * @param error error location
- * 
- * @returns #TRUE if unlink() succeeded
- */
-dbus_bool_t
-_dbus_delete_file (const DBusString *filename,
-                   DBusError        *error)
-{
-  const char *filename_c;
-
-  _DBUS_ASSERT_ERROR_IS_CLEAR (error);
-  
-  filename_c = _dbus_string_get_const_data (filename);
-
-  if (unlink (filename_c) < 0)
-    {
-      dbus_set_error (error, DBUS_ERROR_FAILED,
-                      "Failed to delete file %s: %s\n",
-                      filename_c, _dbus_strerror (errno));
-      return FALSE;
-    }
-  else
-    return TRUE;
-}
-
 /**
  * Creates a directory; succeeds if the directory
  * is created or already existed.