*/
#include "config.h"
-
-#include "glib.h"
+#include "glibconfig.h"
#include <sys/stat.h>
#ifdef HAVE_UNISTD_H
#define O_BINARY 0
#endif
+#include "gfileutils.h"
+
#include "gstdio.h"
#include "glibintl.h"
-#include "galias.h"
+#ifdef HAVE_LINUX_MAGIC_H /* for btrfs check */
+#include <linux/magic.h>
+#include <sys/vfs.h>
+#endif
+
+/**
+ * g_mkdir_with_parents:
+ * @pathname: a pathname in the GLib file name encoding
+ * @mode: permissions to use for newly created directories
+ *
+ * Create a directory if it doesn't already exist. Create intermediate
+ * parent directories as needed, too.
+ *
+ * Returns: 0 if the directory already exists, or was successfully
+ * created. Returns -1 if an error occurred, with errno set.
+ *
+ * Since: 2.8
+ */
+int
+g_mkdir_with_parents (const gchar *pathname,
+ int mode)
+{
+ gchar *fn, *p;
+
+ if (pathname == NULL || *pathname == '\0')
+ {
+ errno = EINVAL;
+ return -1;
+ }
+
+ fn = g_strdup (pathname);
+
+ if (g_path_is_absolute (fn))
+ p = (gchar *) g_path_skip_root (fn);
+ else
+ p = fn;
+
+ do
+ {
+ while (*p && !G_IS_DIR_SEPARATOR (*p))
+ p++;
+
+ if (!*p)
+ p = NULL;
+ else
+ *p = '\0';
+
+ if (!g_file_test (fn, G_FILE_TEST_EXISTS))
+ {
+ if (g_mkdir (fn, mode) == -1)
+ {
+ int errno_save = errno;
+ g_free (fn);
+ errno = errno_save;
+ return -1;
+ }
+ }
+ else if (!g_file_test (fn, G_FILE_TEST_IS_DIR))
+ {
+ g_free (fn);
+ errno = ENOTDIR;
+ return -1;
+ }
+ if (p)
+ {
+ *p++ = G_DIR_SEPARATOR;
+ while (*p && G_IS_DIR_SEPARATOR (*p))
+ p++;
+ }
+ }
+ while (p);
+
+ g_free (fn);
+
+ return 0;
+}
/**
* g_file_test:
* to perform an operation, because there is always the possibility
* of the condition changing before you actually perform the operation.
* For example, you might think you could use %G_FILE_TEST_IS_SYMLINK
- * to know whether it is is safe to write to a file without being
+ * to know whether it is safe to write to a file without being
* tricked into writing into a different location. It doesn't work!
- *
- * <informalexample><programlisting>
+ * |[
* /* DON'T DO THIS */
- * if (!g_file_test (filename, G_FILE_TEST_IS_SYMLINK)) {
- * fd = g_open (filename, O_WRONLY);
- * /* write to fd */
- * }
- * </programlisting></informalexample>
+ * if (!g_file_test (filename, G_FILE_TEST_IS_SYMLINK))
+ * {
+ * fd = g_open (filename, O_WRONLY);
+ * /* write to fd */
+ * }
+ * ]|
*
* Another thing to note is that %G_FILE_TEST_EXISTS and
* %G_FILE_TEST_IS_EXECUTABLE are implemented using the access()
# define FILE_ATTRIBUTE_DEVICE 64
# endif
int attributes;
+ wchar_t *wfilename = g_utf8_to_utf16 (filename, -1, NULL, NULL, NULL);
- if (G_WIN32_HAVE_WIDECHAR_API ())
- {
- wchar_t *wfilename = g_utf8_to_utf16 (filename, -1, NULL, NULL, NULL);
-
- if (wfilename == NULL)
- return FALSE;
-
- attributes = GetFileAttributesW (wfilename);
+ if (wfilename == NULL)
+ return FALSE;
- g_free (wfilename);
- }
- else
- {
- gchar *cpfilename = g_locale_from_utf8 (filename, -1, NULL, NULL, NULL);
+ attributes = GetFileAttributesW (wfilename);
- if (cpfilename == NULL)
- return FALSE;
-
- attributes = GetFileAttributesA (cpfilename);
-
- g_free (cpfilename);
- }
+ g_free (wfilename);
if (attributes == INVALID_FILE_ATTRIBUTES)
return FALSE;
return TRUE;
if (test & G_FILE_TEST_IS_REGULAR)
- return (attributes & (FILE_ATTRIBUTE_DIRECTORY | FILE_ATTRIBUTE_DEVICE)) == 0;
+ {
+ if ((attributes & (FILE_ATTRIBUTE_DIRECTORY | FILE_ATTRIBUTE_DEVICE)) == 0)
+ return TRUE;
+ }
if (test & G_FILE_TEST_IS_DIR)
- return (attributes & FILE_ATTRIBUTE_DIRECTORY) != 0;
+ {
+ if ((attributes & FILE_ATTRIBUTE_DIRECTORY) != 0)
+ return TRUE;
+ }
- if (test & G_FILE_TEST_IS_EXECUTABLE)
+ /* "while" so that we can exit this "loop" with a simple "break" */
+ while (test & G_FILE_TEST_IS_EXECUTABLE)
{
const gchar *lastdot = strrchr (filename, '.');
const gchar *pathext = NULL, *p;
int extlen;
if (lastdot == NULL)
- return FALSE;
+ break;
- if (stricmp (lastdot, ".exe") == 0 ||
- stricmp (lastdot, ".cmd") == 0 ||
- stricmp (lastdot, ".bat") == 0 ||
- stricmp (lastdot, ".com") == 0)
+ if (_stricmp (lastdot, ".exe") == 0 ||
+ _stricmp (lastdot, ".cmd") == 0 ||
+ _stricmp (lastdot, ".bat") == 0 ||
+ _stricmp (lastdot, ".com") == 0)
return TRUE;
/* Check if it is one of the types listed in %PATHEXT% */
pathext = g_getenv ("PATHEXT");
if (pathext == NULL)
- return FALSE;
+ break;
pathext = g_utf8_casefold (pathext, -1);
g_free ((gchar *) pathext);
g_free ((gchar *) lastdot);
- return FALSE;
+ break;
}
return FALSE;
#endif
}
-#ifdef G_OS_WIN32
-
-#undef g_file_test
-
-/* Binary compatibility version. Not for newly compiled code. */
-
-gboolean
-g_file_test (const gchar *filename,
- GFileTest test)
-{
- gchar *utf8_filename = g_locale_to_utf8 (filename, -1, NULL, NULL, NULL);
- gboolean retval;
-
- if (utf8_filename == NULL)
- return FALSE;
-
- retval = g_file_test_utf8 (utf8_filename, test);
-
- g_free (utf8_filename);
-
- return retval;
-}
-
-#endif
-
GQuark
g_file_error_quark (void)
{
- static GQuark q = 0;
- if (q == 0)
- q = g_quark_from_static_string ("g-file-error-quark");
-
- return q;
+ return g_quark_from_static_string ("g-file-error-quark");
}
/**
}
static gboolean
-get_contents_stdio (const gchar *display_filename,
- FILE *f,
- gchar **contents,
- gsize *length,
- GError **error)
+get_contents_stdio (const gchar *display_filename,
+ FILE *f,
+ gchar **contents,
+ gsize *length,
+ GError **error)
{
gchar buf[4096];
- size_t bytes;
+ gsize bytes;
gchar *str = NULL;
- size_t total_bytes = 0;
- size_t total_allocated = 0;
+ gsize total_bytes = 0;
+ gsize total_allocated = 0;
gchar *tmp;
g_assert (f != NULL);
}
memcpy (str + total_bytes, buf, bytes);
+
+ if (total_bytes + bytes < total_bytes)
+ {
+ g_set_error (error,
+ G_FILE_ERROR,
+ G_FILE_ERROR_FAILED,
+ _("File \"%s\" is too large"),
+ display_filename);
+
+ goto error;
+ }
+
total_bytes += bytes;
}
fclose (f);
if (total_allocated == 0)
- str = g_new (gchar, 1);
+ {
+ str = g_new (gchar, 1);
+ total_bytes = 0;
+ }
str[total_bytes] = '\0';
#ifndef G_OS_WIN32
static gboolean
-get_contents_regfile (const gchar *display_filename,
- struct stat *stat_buf,
- gint fd,
- gchar **contents,
- gsize *length,
- GError **error)
+get_contents_regfile (const gchar *display_filename,
+ struct stat *stat_buf,
+ gint fd,
+ gchar **contents,
+ gsize *length,
+ GError **error)
{
gchar *buf;
- size_t bytes_read;
- size_t size;
- size_t alloc_size;
+ gsize bytes_read;
+ gsize size;
+ gsize alloc_size;
size = stat_buf->st_size;
}
static gboolean
-get_contents_posix (const gchar *filename,
- gchar **contents,
- gsize *length,
- GError **error)
+get_contents_posix (const gchar *filename,
+ gchar **contents,
+ gsize *length,
+ GError **error)
{
struct stat stat_buf;
gint fd;
#else /* G_OS_WIN32 */
static gboolean
-get_contents_win32 (const gchar *filename,
- gchar **contents,
- gsize *length,
- GError **error)
+get_contents_win32 (const gchar *filename,
+ gchar **contents,
+ gsize *length,
+ GError **error)
{
FILE *f;
gboolean retval;
/**
* g_file_get_contents:
* @filename: name of a file to read contents from, in the GLib file name encoding
- * @contents: location to store an allocated string
+ * @contents: location to store an allocated string, use g_free() to free
+ * the returned string
* @length: location to store length in bytes of the contents, or %NULL
* @error: return location for a #GError, or %NULL
- *
+ *
* Reads an entire file into allocated memory, with good error
- * checking.
+ * checking.
*
- * If the call was successful, it returns %TRUE and sets @contents to the file
- * contents and @length to the length of the file contents in bytes. The string
- * stored in @contents will be nul-terminated, so for text files you can pass
- * %NULL for the @length argument. If the call was not successful, it returns
- * %FALSE and sets @error. The error domain is #G_FILE_ERROR. Possible error
- * codes are those in the #GFileError enumeration. In the error case,
+ * If the call was successful, it returns %TRUE and sets @contents to the file
+ * contents and @length to the length of the file contents in bytes. The string
+ * stored in @contents will be nul-terminated, so for text files you can pass
+ * %NULL for the @length argument. If the call was not successful, it returns
+ * %FALSE and sets @error. The error domain is #G_FILE_ERROR. Possible error
+ * codes are those in the #GFileError enumeration. In the error case,
* @contents is set to %NULL and @length is set to zero.
*
* Return value: %TRUE on success, %FALSE if an error occurred
**/
gboolean
-g_file_get_contents (const gchar *filename,
- gchar **contents,
- gsize *length,
- GError **error)
+g_file_get_contents (const gchar *filename,
+ gchar **contents,
+ gsize *length,
+ GError **error)
{
g_return_val_if_fail (filename != NULL, FALSE);
g_return_val_if_fail (contents != NULL, FALSE);
#endif
}
-#ifdef G_OS_WIN32
-
-#undef g_file_get_contents
-
-/* Binary compatibility version. Not for newly compiled code. */
-
-gboolean
-g_file_get_contents (const gchar *filename,
- gchar **contents,
- gsize *length,
- GError **error)
-{
- gchar *utf8_filename = g_locale_to_utf8 (filename, -1, NULL, NULL, error);
- gboolean retval;
-
- if (utf8_filename == NULL)
- return FALSE;
-
- retval = g_file_get_contents_utf8 (utf8_filename, contents, length, error);
-
- g_free (utf8_filename);
-
- return retval;
-}
-
-#endif
-
-
static gboolean
-rename_file (const char *old_name,
- const char *new_name,
- GError **err)
+rename_file (const char *old_name,
+ const char *new_name,
+ GError **err)
{
errno = 0;
if (g_rename (old_name, new_name) == -1)
int save_errno = errno;
gchar *display_old_name = g_filename_display_name (old_name);
gchar *display_new_name = g_filename_display_name (new_name);
-
+
g_set_error (err,
G_FILE_ERROR,
g_file_error_from_errno (save_errno),
}
static gchar *
-write_to_temp_file (const gchar *contents,
- gssize length,
- const gchar *template,
- GError **err)
+write_to_temp_file (const gchar *contents,
+ gssize length,
+ const gchar *dest_file,
+ GError **err)
{
gchar *tmp_name;
gchar *display_name;
retval = NULL;
- tmp_name = g_strdup_printf ("%s.XXXXXX", template);
+ tmp_name = g_strdup_printf ("%s.XXXXXX", dest_file);
errno = 0;
- fd = g_mkstemp (tmp_name);
+ fd = g_mkstemp_full (tmp_name, O_RDWR | O_BINARY, 0666);
save_errno = errno;
+
display_name = g_filename_display_name (tmp_name);
if (fd == -1)
file = fdopen (fd, "wb");
if (!file)
{
+ save_errno = errno;
g_set_error (err,
G_FILE_ERROR,
- g_file_error_from_errno (errno),
+ g_file_error_from_errno (save_errno),
_("Failed to open file '%s' for writing: fdopen() failed: %s"),
display_name,
- g_strerror (errno));
+ g_strerror (save_errno));
close (fd);
g_unlink (tmp_name);
if (length > 0)
{
- size_t n_written;
+ gsize n_written;
errno = 0;
n_written = fwrite (contents, 1, length, file);
-
+
if (n_written < length)
{
+ save_errno = errno;
+
g_set_error (err,
G_FILE_ERROR,
- g_file_error_from_errno (errno),
+ g_file_error_from_errno (save_errno),
_("Failed to write file '%s': fwrite() failed: %s"),
display_name,
- g_strerror (errno));
+ g_strerror (save_errno));
fclose (file);
g_unlink (tmp_name);
goto out;
}
}
-
+
+ errno = 0;
+ if (fflush (file) != 0)
+ {
+ save_errno = errno;
+
+ g_set_error (err,
+ G_FILE_ERROR,
+ g_file_error_from_errno (save_errno),
+ _("Failed to write file '%s': fflush() failed: %s"),
+ display_name,
+ g_strerror (save_errno));
+
+ g_unlink (tmp_name);
+
+ goto out;
+ }
+
+#ifdef BTRFS_SUPER_MAGIC
+ {
+ struct statfs buf;
+
+ /* On Linux, on btrfs, skip the fsync since rename-over-existing is
+ * guaranteed to be atomic and this is the only case in which we
+ * would fsync() anyway.
+ */
+
+ if (fstatfs (fd, &buf) == 0 && buf.f_type == BTRFS_SUPER_MAGIC)
+ goto no_fsync;
+ }
+#endif
+
+#ifdef HAVE_FSYNC
+ {
+ struct stat statbuf;
+
+ errno = 0;
+ /* If the final destination exists and is > 0 bytes, we want to sync the
+ * newly written file to ensure the data is on disk when we rename over
+ * the destination. Otherwise if we get a system crash we can lose both
+ * the new and the old file on some filesystems. (I.E. those that don't
+ * guarantee the data is written to the disk before the metadata.)
+ */
+ if (g_lstat (dest_file, &statbuf) == 0 &&
+ statbuf.st_size > 0 &&
+ fsync (fileno (file)) != 0)
+ {
+ save_errno = errno;
+
+ g_set_error (err,
+ G_FILE_ERROR,
+ g_file_error_from_errno (save_errno),
+ _("Failed to write file '%s': fsync() failed: %s"),
+ display_name,
+ g_strerror (save_errno));
+
+ g_unlink (tmp_name);
+
+ goto out;
+ }
+ }
+#endif
+ no_fsync:
+
errno = 0;
if (fclose (file) == EOF)
- {
+ {
+ save_errno = errno;
+
g_set_error (err,
G_FILE_ERROR,
- g_file_error_from_errno (errno),
+ g_file_error_from_errno (save_errno),
_("Failed to close file '%s': fclose() failed: %s"),
display_name,
- g_strerror (errno));
+ g_strerror (save_errno));
g_unlink (tmp_name);
goto out;
}
-
- retval = g_strdup (tmp_name);
+ retval = g_strdup (tmp_name);
+
out:
g_free (tmp_name);
g_free (display_name);
}
/**
- * g_file_replace:
+ * g_file_set_contents:
* @filename: name of a file to write @contents to, in the GLib file name
* encoding
* @contents: string to write to the file
* it returns %FALSE and sets @error. The error domain is #G_FILE_ERROR.
* Possible error codes are those in the #GFileError enumeration.
*
+ * Note that the name for the temporary file is constructed by appending up
+ * to 7 characters to @filename.
+ *
* Return value: %TRUE on success, %FALSE if an error occurred
*
* Since: 2.8
**/
gboolean
-g_file_replace (const gchar *filename,
- const gchar *contents,
- gssize length,
- GError **error)
+g_file_set_contents (const gchar *filename,
+ const gchar *contents,
+ gssize length,
+ GError **error)
{
gchar *tmp_filename;
gboolean retval;
{
gchar *display_filename = g_filename_display_name (filename);
+ int save_errno = errno;
+
g_set_error (error,
G_FILE_ERROR,
- g_file_error_from_errno (errno),
+ g_file_error_from_errno (save_errno),
_("Existing file '%s' could not be removed: g_unlink() failed: %s"),
display_filename,
- g_strerror (errno));
+ g_strerror (save_errno));
g_free (display_filename);
g_unlink (tmp_filename);
return retval;
}
-/*
- * mkstemp() implementation is from the GNU C library.
- * Copyright (C) 1991,92,93,94,95,96,97,98,99 Free Software Foundation, Inc.
- */
/**
- * g_mkstemp:
+ * g_mkstemp_full:
* @tmpl: template filename
+ * @flags: flags to pass to an open() call in addition to O_EXCL and
+ * O_CREAT, which are passed automatically
+ * @mode: permissios to create the temporary file with
*
* Opens a temporary file. See the mkstemp() documentation
- * on most UNIX-like systems. This is a portability wrapper, which simply calls
- * mkstemp() on systems that have it, and implements
- * it in GLib otherwise.
+ * on most UNIX-like systems.
*
- * The parameter is a string that should match the rules for
- * mkstemp(), i.e. end in "XXXXXX". The X string will
- * be modified to form the name of a file that didn't exist.
- * The string should be in the GLib file name encoding. Most importantly,
+ * The parameter is a string that should follow the rules for
+ * mkstemp() templates, i.e. contain the string "XXXXXX".
+ * g_mkstemp_full() is slightly more flexible than mkstemp()
+ * in that the sequence does not have to occur at the very end of the
+ * template and you can pass a @mode and additional @flags. The X
+ * string will be modified to form the name of a file that didn't exist.
+ * The string should be in the GLib file name encoding. Most importantly,
* on Windows it should be in UTF-8.
*
* Return value: A file handle (as from open()) to the file
- * opened for reading and writing. The file is opened in binary mode
- * on platforms where there is a difference. The file handle should be
- * closed with close(). In case of errors, -1 is returned.
+ * opened for reading and writing. The file handle should be
+ * closed with close(). In case of errors, -1 is returned.
+ *
+ * Since: 2.22
+ */
+/*
+ * g_mkstemp_full based on the mkstemp implementation from the GNU C library.
+ * Copyright (C) 1991,92,93,94,95,96,97,98,99 Free Software Foundation, Inc.
*/
gint
-g_mkstemp (gchar *tmpl)
+g_mkstemp_full (gchar *tmpl,
+ int flags,
+ int mode)
{
-#ifdef HAVE_MKSTEMP
- return mkstemp (tmpl);
-#else
- int len;
char *XXXXXX;
int count, fd;
static const char letters[] =
GTimeVal tv;
static int counter = 0;
- len = strlen (tmpl);
- if (len < 6 || strcmp (&tmpl[len - 6], "XXXXXX"))
+ g_return_val_if_fail (tmpl != NULL, -1);
+
+
+ /* find the last occurrence of "XXXXXX" */
+ XXXXXX = g_strrstr (tmpl, "XXXXXX");
+
+ if (!XXXXXX || strncmp (XXXXXX, "XXXXXX", 6))
{
errno = EINVAL;
return -1;
}
- /* This is where the Xs start. */
- XXXXXX = &tmpl[len - 6];
-
/* Get some more or less random data. */
g_get_current_time (&tv);
value = (tv.tv_usec ^ tv.tv_sec) + counter++;
XXXXXX[5] = letters[v % NLETTERS];
/* tmpl is in UTF-8 on Windows, thus use g_open() */
- fd = g_open (tmpl, O_RDWR | O_CREAT | O_EXCL | O_BINARY, 0600);
+ fd = g_open (tmpl, flags | O_CREAT | O_EXCL, mode);
if (fd >= 0)
return fd;
/* We got out of the loop because we ran out of combinations to try. */
errno = EEXIST;
return -1;
-#endif
}
-#ifdef G_OS_WIN32
-
-#undef g_mkstemp
-
-/* Binary compatibility version. Not for newly compiled code. */
-
+/**
+ * g_mkstemp:
+ * @tmpl: template filename
+ *
+ * Opens a temporary file. See the mkstemp() documentation
+ * on most UNIX-like systems.
+ *
+ * The parameter is a string that should follow the rules for
+ * mkstemp() templates, i.e. contain the string "XXXXXX".
+ * g_mkstemp() is slightly more flexible than mkstemp()
+ * in that the sequence does not have to occur at the very end of the
+ * template. The X string will
+ * be modified to form the name of a file that didn't exist.
+ * The string should be in the GLib file name encoding. Most importantly,
+ * on Windows it should be in UTF-8.
+ *
+ * Return value: A file handle (as from open()) to the file
+ * opened for reading and writing. The file is opened in binary mode
+ * on platforms where there is a difference. The file handle should be
+ * closed with close(). In case of errors, -1 is returned.
+ */
gint
g_mkstemp (gchar *tmpl)
{
- int len;
- char *XXXXXX;
- int count, fd;
- static const char letters[] =
- "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
- static const int NLETTERS = sizeof (letters) - 1;
- glong value;
- GTimeVal tv;
- static int counter = 0;
-
- len = strlen (tmpl);
- if (len < 6 || strcmp (&tmpl[len - 6], "XXXXXX"))
- {
- errno = EINVAL;
- return -1;
- }
+ return g_mkstemp_full (tmpl, O_RDWR | O_BINARY, 0600);
+}
- /* This is where the Xs start. */
- XXXXXX = &tmpl[len - 6];
+/**
+ * g_file_open_tmp:
+ * @tmpl: Template for file name, as in g_mkstemp(), basename only,
+ * or %NULL, to a default template
+ * @name_used: location to store actual name used, or %NULL
+ * @error: return location for a #GError
+ *
+ * Opens a file for writing in the preferred directory for temporary
+ * files (as returned by g_get_tmp_dir()).
+ *
+ * @tmpl should be a string in the GLib file name encoding containing
+ * a sequence of six 'X' characters, as the parameter to g_mkstemp().
+ * However, unlike these functions, the template should only be a
+ * basename, no directory components are allowed. If template is
+ * %NULL, a default template is used.
+ *
+ * Note that in contrast to g_mkstemp() (and mkstemp())
+ * @tmpl is not modified, and might thus be a read-only literal string.
+ *
+ * The actual name used is returned in @name_used if non-%NULL. This
+ * string should be freed with g_free() when not needed any longer.
+ * The returned name is in the GLib file name encoding.
+ *
+ * Return value: A file handle (as from open()) to
+ * the file opened for reading and writing. The file is opened in binary
+ * mode on platforms where there is a difference. The file handle should be
+ * closed with close(). In case of errors, -1 is returned
+ * and @error will be set.
+ **/
+gint
+g_file_open_tmp (const gchar *tmpl,
+ gchar **name_used,
+ GError **error)
+{
+ int retval;
+ const char *tmpdir;
+ const char *sep;
+ char *fulltemplate;
+ const char *slash;
- /* Get some more or less random data. */
- g_get_current_time (&tv);
- value = (tv.tv_usec ^ tv.tv_sec) + counter++;
-
- for (count = 0; count < 100; value += 7777, ++count)
- {
- glong v = value;
-
- /* Fill in the random bits. */
- XXXXXX[0] = letters[v % NLETTERS];
- v /= NLETTERS;
- XXXXXX[1] = letters[v % NLETTERS];
- v /= NLETTERS;
- XXXXXX[2] = letters[v % NLETTERS];
- v /= NLETTERS;
- XXXXXX[3] = letters[v % NLETTERS];
- v /= NLETTERS;
- XXXXXX[4] = letters[v % NLETTERS];
- v /= NLETTERS;
- XXXXXX[5] = letters[v % NLETTERS];
-
- /* This is the backward compatibility system codepage version,
- * thus use normal open().
- */
- fd = open (tmpl, O_RDWR | O_CREAT | O_EXCL | O_BINARY, 0600);
-
- if (fd >= 0)
- return fd;
- else if (errno != EEXIST)
- /* Any other error will apply also to other names we might
- * try, and there are 2^32 or so of them, so give up now.
- */
- return -1;
- }
-
- /* We got out of the loop because we ran out of combinations to try. */
- errno = EEXIST;
- return -1;
-}
-
-#endif
-
-/**
- * g_file_open_tmp:
- * @tmpl: Template for file name, as in g_mkstemp(), basename only
- * @name_used: location to store actual name used
- * @error: return location for a #GError
- *
- * Opens a file for writing in the preferred directory for temporary
- * files (as returned by g_get_tmp_dir()).
- *
- * @tmpl should be a string in the GLib file name encoding ending with
- * six 'X' characters, as the parameter to g_mkstemp() (or mkstemp()).
- * However, unlike these functions, the template should only be a
- * basename, no directory components are allowed. If template is
- * %NULL, a default template is used.
- *
- * Note that in contrast to g_mkstemp() (and mkstemp())
- * @tmpl is not modified, and might thus be a read-only literal string.
- *
- * The actual name used is returned in @name_used if non-%NULL. This
- * string should be freed with g_free() when not needed any longer.
- * The returned name is in the GLib file name encoding.
- *
- * Return value: A file handle (as from open()) to
- * the file opened for reading and writing. The file is opened in binary
- * mode on platforms where there is a difference. The file handle should be
- * closed with close(). In case of errors, -1 is returned
- * and @error will be set.
- **/
-gint
-g_file_open_tmp (const gchar *tmpl,
- gchar **name_used,
- GError **error)
-{
- int retval;
- const char *tmpdir;
- char *sep;
- char *fulltemplate;
- const char *slash;
-
- if (tmpl == NULL)
- tmpl = ".XXXXXX";
+ if (tmpl == NULL)
+ tmpl = ".XXXXXX";
if ((slash = strchr (tmpl, G_DIR_SEPARATOR)) != NULL
#ifdef G_OS_WIN32
return -1;
}
- if (strlen (tmpl) < 6 ||
- strcmp (tmpl + strlen (tmpl) - 6, "XXXXXX") != 0)
+ if (strstr (tmpl, "XXXXXX") == NULL)
{
gchar *display_tmpl = g_filename_display_name (tmpl);
g_set_error (error,
G_FILE_ERROR,
G_FILE_ERROR_FAILED,
- _("Template '%s' doesn't end with XXXXXX"),
+ _("Template '%s' doesn't contain XXXXXX"),
display_tmpl);
g_free (display_tmpl);
return -1;
return retval;
}
-#ifdef G_OS_WIN32
-
-#undef g_file_open_tmp
-
-/* Binary compatibility version. Not for newly compiled code. */
-
-gint
-g_file_open_tmp (const gchar *tmpl,
- gchar **name_used,
- GError **error)
-{
- gchar *utf8_tmpl = g_locale_to_utf8 (tmpl, -1, NULL, NULL, error);
- gchar *utf8_name_used;
- gint retval;
-
- if (utf8_tmpl == NULL)
- return -1;
-
- retval = g_file_open_tmp_utf8 (utf8_tmpl, &utf8_name_used, error);
-
- if (retval == -1)
- return -1;
-
- if (name_used)
- *name_used = g_locale_from_utf8 (utf8_name_used, -1, NULL, NULL, NULL);
-
- g_free (utf8_name_used);
-
- return retval;
-}
-
-#endif
-
static gchar *
-g_build_pathv (const gchar *separator,
- const gchar *first_element,
- va_list args)
+g_build_path_va (const gchar *separator,
+ const gchar *first_element,
+ va_list *args,
+ gchar **str_array)
{
GString *result;
gint separator_len = strlen (separator);
const gchar *single_element = NULL;
const gchar *next_element;
const gchar *last_trailing = NULL;
+ gint i = 0;
result = g_string_new (NULL);
- next_element = first_element;
+ if (str_array)
+ next_element = str_array[i++];
+ else
+ next_element = first_element;
while (TRUE)
{
if (next_element)
{
element = next_element;
- next_element = va_arg (args, gchar *);
+ if (str_array)
+ next_element = str_array[i++];
+ else
+ next_element = va_arg (*args, gchar *);
}
else
break;
if (separator_len)
{
- while (start &&
- strncmp (start, separator, separator_len) == 0)
+ while (strncmp (start, separator, separator_len) == 0)
start += separator_len;
}
}
/**
+ * g_build_pathv:
+ * @separator: a string used to separator the elements of the path.
+ * @args: %NULL-terminated array of strings containing the path elements.
+ *
+ * Behaves exactly like g_build_path(), but takes the path elements
+ * as a string array, instead of varargs. This function is mainly
+ * meant for language bindings.
+ *
+ * Return value: a newly-allocated string that must be freed with g_free().
+ *
+ * Since: 2.8
+ */
+gchar *
+g_build_pathv (const gchar *separator,
+ gchar **args)
+{
+ if (!args)
+ return NULL;
+
+ return g_build_path_va (separator, NULL, NULL, args);
+}
+
+
+/**
* g_build_path:
* @separator: a string used to separator the elements of the path.
* @first_element: the first element in the path
g_return_val_if_fail (separator != NULL, NULL);
va_start (args, first_element);
- str = g_build_pathv (separator, first_element, args);
+ str = g_build_path_va (separator, first_element, &args, NULL);
va_end (args);
return str;
}
-/**
- * g_build_filename:
- * @first_element: the first element in the path
- * @Varargs: remaining elements in path, terminated by %NULL
- *
- * Creates a filename from a series of elements using the correct
- * separator for filenames.
- *
- * On Unix, this function behaves identically to <literal>g_build_path
- * (G_DIR_SEPARATOR_S, first_element, ....)</literal>.
- *
- * On Windows, it takes into account that either the backslash
- * (<literal>\</literal> or slash (<literal>/</literal>) can be used
- * as separator in filenames, but otherwise behaves as on Unix. When
- * file pathname separators need to be inserted, the one that last
- * previously occurred in the parameters (reading from left to right)
- * is used.
- *
- * No attempt is made to force the resulting filename to be an absolute
- * path. If the first element is a relative path, the result will
- * be a relative path.
- *
- * Return value: a newly-allocated string that must be freed with g_free().
- **/
-gchar *
-g_build_filename (const gchar *first_element,
- ...)
-{
-#ifndef G_OS_WIN32
- gchar *str;
- va_list args;
-
- va_start (args, first_element);
- str = g_build_pathv (G_DIR_SEPARATOR_S, first_element, args);
- va_end (args);
+#ifdef G_OS_WIN32
- return str;
-#else
- /* Code copied from g_build_pathv(), and modifed to use two
+static gchar *
+g_build_pathname_va (const gchar *first_element,
+ va_list *args,
+ gchar **str_array)
+{
+ /* Code copied from g_build_pathv(), and modified to use two
* alternative single-character separators.
*/
- va_list args;
GString *result;
gboolean is_first = TRUE;
gboolean have_leading = FALSE;
const gchar *next_element;
const gchar *last_trailing = NULL;
gchar current_separator = '\\';
-
- va_start (args, first_element);
+ gint i = 0;
result = g_string_new (NULL);
- next_element = first_element;
-
+ if (str_array)
+ next_element = str_array[i++];
+ else
+ next_element = first_element;
+
while (TRUE)
{
const gchar *element;
if (next_element)
{
element = next_element;
- next_element = va_arg (args, gchar *);
+ if (str_array)
+ next_element = str_array[i++];
+ else
+ next_element = va_arg (*args, gchar *);
}
else
break;
is_first = FALSE;
}
- va_end (args);
-
if (single_element)
{
g_string_free (result, TRUE);
return g_string_free (result, FALSE);
}
+}
+
#endif
+
+/**
+ * g_build_filenamev:
+ * @args: %NULL-terminated array of strings containing the path elements.
+ *
+ * Behaves exactly like g_build_filename(), but takes the path elements
+ * as a string array, instead of varargs. This function is mainly
+ * meant for language bindings.
+ *
+ * Return value: a newly-allocated string that must be freed with g_free().
+ *
+ * Since: 2.8
+ */
+gchar *
+g_build_filenamev (gchar **args)
+{
+ gchar *str;
+
+#ifndef G_OS_WIN32
+ str = g_build_path_va (G_DIR_SEPARATOR_S, NULL, NULL, args);
+#else
+ str = g_build_pathname_va (NULL, NULL, args);
+#endif
+
+ return str;
}
/**
+ * g_build_filename:
+ * @first_element: the first element in the path
+ * @Varargs: remaining elements in path, terminated by %NULL
+ *
+ * Creates a filename from a series of elements using the correct
+ * separator for filenames.
+ *
+ * On Unix, this function behaves identically to <literal>g_build_path
+ * (G_DIR_SEPARATOR_S, first_element, ....)</literal>.
+ *
+ * On Windows, it takes into account that either the backslash
+ * (<literal>\</literal> or slash (<literal>/</literal>) can be used
+ * as separator in filenames, but otherwise behaves as on Unix. When
+ * file pathname separators need to be inserted, the one that last
+ * previously occurred in the parameters (reading from left to right)
+ * is used.
+ *
+ * No attempt is made to force the resulting filename to be an absolute
+ * path. If the first element is a relative path, the result will
+ * be a relative path.
+ *
+ * Return value: a newly-allocated string that must be freed with g_free().
+ **/
+gchar *
+g_build_filename (const gchar *first_element,
+ ...)
+{
+ gchar *str;
+ va_list args;
+
+ va_start (args, first_element);
+#ifndef G_OS_WIN32
+ str = g_build_path_va (G_DIR_SEPARATOR_S, first_element, &args, NULL);
+#else
+ str = g_build_pathname_va (first_element, &args, NULL);
+#endif
+ va_end (args);
+
+ return str;
+}
+
+#define KILOBYTE_FACTOR (G_GOFFSET_CONSTANT (1024))
+#define MEGABYTE_FACTOR (KILOBYTE_FACTOR * KILOBYTE_FACTOR)
+#define GIGABYTE_FACTOR (MEGABYTE_FACTOR * KILOBYTE_FACTOR)
+#define TERABYTE_FACTOR (GIGABYTE_FACTOR * KILOBYTE_FACTOR)
+#define PETABYTE_FACTOR (TERABYTE_FACTOR * KILOBYTE_FACTOR)
+#define EXABYTE_FACTOR (PETABYTE_FACTOR * KILOBYTE_FACTOR)
+
+/**
+ * g_format_size_for_display:
+ * @size: a size in bytes.
+ *
+ * Formats a size (for example the size of a file) into a human readable string.
+ * Sizes are rounded to the nearest size prefix (KB, MB, GB) and are displayed
+ * rounded to the nearest tenth. E.g. the file size 3292528 bytes will be
+ * converted into the string "3.1 MB".
+ *
+ * The prefix units base is 1024 (i.e. 1 KB is 1024 bytes).
+ *
+ * This string should be freed with g_free() when not needed any longer.
+ *
+ * Returns: a newly-allocated formatted string containing a human readable
+ * file size.
+ *
+ * Since: 2.16
+ **/
+char *
+g_format_size_for_display (goffset size)
+{
+ if (size < (goffset) KILOBYTE_FACTOR)
+ return g_strdup_printf (g_dngettext(GETTEXT_PACKAGE, "%u byte", "%u bytes",(guint) size), (guint) size);
+ else
+ {
+ gdouble displayed_size;
+
+ if (size < (goffset) MEGABYTE_FACTOR)
+ {
+ displayed_size = (gdouble) size / (gdouble) KILOBYTE_FACTOR;
+ return g_strdup_printf (_("%.1f KB"), displayed_size);
+ }
+ else if (size < (goffset) GIGABYTE_FACTOR)
+ {
+ displayed_size = (gdouble) size / (gdouble) MEGABYTE_FACTOR;
+ return g_strdup_printf (_("%.1f MB"), displayed_size);
+ }
+ else if (size < (goffset) TERABYTE_FACTOR)
+ {
+ displayed_size = (gdouble) size / (gdouble) GIGABYTE_FACTOR;
+ return g_strdup_printf (_("%.1f GB"), displayed_size);
+ }
+ else if (size < (goffset) PETABYTE_FACTOR)
+ {
+ displayed_size = (gdouble) size / (gdouble) TERABYTE_FACTOR;
+ return g_strdup_printf (_("%.1f TB"), displayed_size);
+ }
+ else if (size < (goffset) EXABYTE_FACTOR)
+ {
+ displayed_size = (gdouble) size / (gdouble) PETABYTE_FACTOR;
+ return g_strdup_printf (_("%.1f PB"), displayed_size);
+ }
+ else
+ {
+ displayed_size = (gdouble) size / (gdouble) EXABYTE_FACTOR;
+ return g_strdup_printf (_("%.1f EB"), displayed_size);
+ }
+ }
+}
+
+
+/**
* g_file_read_link:
* @filename: the symbolic link
* @error: return location for a #GError
* readlink() function. The returned string is in the encoding used
* for filenames. Use g_filename_to_utf8() to convert it to UTF-8.
*
- * Returns: A newly allocated string with the contents of the symbolic link,
+ * Returns: A newly-allocated string with the contents of the symbolic link,
* or %NULL if an error occurred.
*
* Since: 2.4
*/
gchar *
-g_file_read_link (const gchar *filename,
- GError **error)
+g_file_read_link (const gchar *filename,
+ GError **error)
{
#ifdef HAVE_READLINK
gchar *buffer;
buffer = g_realloc (buffer, size);
}
#else
- g_set_error (error,
- G_FILE_ERROR,
- G_FILE_ERROR_INVAL,
- _("Symbolic links not supported"));
+ g_set_error_literal (error,
+ G_FILE_ERROR,
+ G_FILE_ERROR_INVAL,
+ _("Symbolic links not supported"));
return NULL;
#endif
}
-#define __G_FILEUTILS_C__
-#include "galiasdef.c"
+/* NOTE : Keep this part last to ensure nothing in this file uses the
+ * below binary compatibility versions.
+ */
+#if defined (G_OS_WIN32) && !defined (_WIN64)
+
+/* Binary compatibility versions. Will be called by code compiled
+ * against quite old (pre-2.8, I think) headers only, not from more
+ * recently compiled code.
+ */
+
+#undef g_file_test
+
+gboolean
+g_file_test (const gchar *filename,
+ GFileTest test)
+{
+ gchar *utf8_filename = g_locale_to_utf8 (filename, -1, NULL, NULL, NULL);
+ gboolean retval;
+
+ if (utf8_filename == NULL)
+ return FALSE;
+
+ retval = g_file_test_utf8 (utf8_filename, test);
+
+ g_free (utf8_filename);
+
+ return retval;
+}
+
+#undef g_file_get_contents
+
+gboolean
+g_file_get_contents (const gchar *filename,
+ gchar **contents,
+ gsize *length,
+ GError **error)
+{
+ gchar *utf8_filename = g_locale_to_utf8 (filename, -1, NULL, NULL, error);
+ gboolean retval;
+
+ if (utf8_filename == NULL)
+ return FALSE;
+
+ retval = g_file_get_contents_utf8 (utf8_filename, contents, length, error);
+
+ g_free (utf8_filename);
+
+ return retval;
+}
+
+#undef g_mkstemp
+
+gint
+g_mkstemp (gchar *tmpl)
+{
+ char *XXXXXX;
+ int count, fd;
+ static const char letters[] =
+ "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
+ static const int NLETTERS = sizeof (letters) - 1;
+ glong value;
+ GTimeVal tv;
+ static int counter = 0;
+
+ /* find the last occurrence of 'XXXXXX' */
+ XXXXXX = g_strrstr (tmpl, "XXXXXX");
+
+ if (!XXXXXX)
+ {
+ errno = EINVAL;
+ return -1;
+ }
+
+ /* Get some more or less random data. */
+ g_get_current_time (&tv);
+ value = (tv.tv_usec ^ tv.tv_sec) + counter++;
+
+ for (count = 0; count < 100; value += 7777, ++count)
+ {
+ glong v = value;
+
+ /* Fill in the random bits. */
+ XXXXXX[0] = letters[v % NLETTERS];
+ v /= NLETTERS;
+ XXXXXX[1] = letters[v % NLETTERS];
+ v /= NLETTERS;
+ XXXXXX[2] = letters[v % NLETTERS];
+ v /= NLETTERS;
+ XXXXXX[3] = letters[v % NLETTERS];
+ v /= NLETTERS;
+ XXXXXX[4] = letters[v % NLETTERS];
+ v /= NLETTERS;
+ XXXXXX[5] = letters[v % NLETTERS];
+
+ /* This is the backward compatibility system codepage version,
+ * thus use normal open().
+ */
+ fd = open (tmpl, O_RDWR | O_CREAT | O_EXCL | O_BINARY, 0600);
+
+ if (fd >= 0)
+ return fd;
+ else if (errno != EEXIST)
+ /* Any other error will apply also to other names we might
+ * try, and there are 2^32 or so of them, so give up now.
+ */
+ return -1;
+ }
+
+ /* We got out of the loop because we ran out of combinations to try. */
+ errno = EEXIST;
+ return -1;
+}
+
+#undef g_file_open_tmp
+
+gint
+g_file_open_tmp (const gchar *tmpl,
+ gchar **name_used,
+ GError **error)
+{
+ gchar *utf8_tmpl = g_locale_to_utf8 (tmpl, -1, NULL, NULL, error);
+ gchar *utf8_name_used;
+ gint retval;
+
+ if (utf8_tmpl == NULL)
+ return -1;
+
+ retval = g_file_open_tmp_utf8 (utf8_tmpl, &utf8_name_used, error);
+
+ if (retval == -1)
+ return -1;
+
+ if (name_used)
+ *name_used = g_locale_from_utf8 (utf8_name_used, -1, NULL, NULL, NULL);
+
+ g_free (utf8_name_used);
+
+ return retval;
+}
+
+#endif
projects / platform / upstream / glib.git / blobdiff