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Remove the shortcut for UTF-8 locales to ensure consistent behaviour. Fix

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2002-02-27  Daniel Elstner  <daniel.elstner@gmx.net>

* glib/gdate.c (g_date_strftime): Remove the shortcut for UTF-8 locales to ensure consistent behaviour.  Fix handling of the strftime return value, and avoid looping if strftime is buggy and constantly returns 0.  Always return 0 if the output buffer was to small. (#72544)
This commit is contained in:
Daniel Elstner 2002-02-27 08:34:46 +00:00 committed by Daniel Elstner
parent f29d075ba7
commit a2e72046dd
9 changed files with 150 additions and 98 deletions
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8
ChangeLog
View File

@ -1,3 +1,11 @@
2002-02-27 Daniel Elstner <daniel.elstner@gmx.net>
* glib/gdate.c (g_date_strftime): Remove the shortcut
for UTF-8 locales to ensure consistent behaviour. Fix
handling of the strftime return value, and avoid looping
if strftime is buggy and constantly returns 0. Always
return 0 if the output buffer was to small. (#72544)
Tue Feb 26 21:44:01 2002 Owen Taylor <otaylor@redhat.com>
* config.status config.guess: Remove these files

8
ChangeLog.pre-2-0
View File

@ -1,3 +1,11 @@
2002-02-27 Daniel Elstner <daniel.elstner@gmx.net>
* glib/gdate.c (g_date_strftime): Remove the shortcut
for UTF-8 locales to ensure consistent behaviour. Fix
handling of the strftime return value, and avoid looping
if strftime is buggy and constantly returns 0. Always
return 0 if the output buffer was to small. (#72544)
Tue Feb 26 21:44:01 2002 Owen Taylor <otaylor@redhat.com>
* config.status config.guess: Remove these files

8
ChangeLog.pre-2-10
View File

@ -1,3 +1,11 @@
2002-02-27 Daniel Elstner <daniel.elstner@gmx.net>
* glib/gdate.c (g_date_strftime): Remove the shortcut
for UTF-8 locales to ensure consistent behaviour. Fix
handling of the strftime return value, and avoid looping
if strftime is buggy and constantly returns 0. Always
return 0 if the output buffer was to small. (#72544)
Tue Feb 26 21:44:01 2002 Owen Taylor <otaylor@redhat.com>
* config.status config.guess: Remove these files

8
ChangeLog.pre-2-12
View File

@ -1,3 +1,11 @@
2002-02-27 Daniel Elstner <daniel.elstner@gmx.net>
* glib/gdate.c (g_date_strftime): Remove the shortcut
for UTF-8 locales to ensure consistent behaviour. Fix
handling of the strftime return value, and avoid looping
if strftime is buggy and constantly returns 0. Always
return 0 if the output buffer was to small. (#72544)
Tue Feb 26 21:44:01 2002 Owen Taylor <otaylor@redhat.com>
* config.status config.guess: Remove these files

8
ChangeLog.pre-2-2
View File

@ -1,3 +1,11 @@
2002-02-27 Daniel Elstner <daniel.elstner@gmx.net>
* glib/gdate.c (g_date_strftime): Remove the shortcut
for UTF-8 locales to ensure consistent behaviour. Fix
handling of the strftime return value, and avoid looping
if strftime is buggy and constantly returns 0. Always
return 0 if the output buffer was to small. (#72544)
Tue Feb 26 21:44:01 2002 Owen Taylor <otaylor@redhat.com>
* config.status config.guess: Remove these files

8
ChangeLog.pre-2-4
View File

@ -1,3 +1,11 @@
2002-02-27 Daniel Elstner <daniel.elstner@gmx.net>
* glib/gdate.c (g_date_strftime): Remove the shortcut
for UTF-8 locales to ensure consistent behaviour. Fix
handling of the strftime return value, and avoid looping
if strftime is buggy and constantly returns 0. Always
return 0 if the output buffer was to small. (#72544)
Tue Feb 26 21:44:01 2002 Owen Taylor <otaylor@redhat.com>
* config.status config.guess: Remove these files

8
ChangeLog.pre-2-6
View File

@ -1,3 +1,11 @@
2002-02-27 Daniel Elstner <daniel.elstner@gmx.net>
* glib/gdate.c (g_date_strftime): Remove the shortcut
for UTF-8 locales to ensure consistent behaviour. Fix
handling of the strftime return value, and avoid looping
if strftime is buggy and constantly returns 0. Always
return 0 if the output buffer was to small. (#72544)
Tue Feb 26 21:44:01 2002 Owen Taylor <otaylor@redhat.com>
* config.status config.guess: Remove these files

8
ChangeLog.pre-2-8
View File

@ -1,3 +1,11 @@
2002-02-27 Daniel Elstner <daniel.elstner@gmx.net>
* glib/gdate.c (g_date_strftime): Remove the shortcut
for UTF-8 locales to ensure consistent behaviour. Fix
handling of the strftime return value, and avoid looping
if strftime is buggy and constantly returns 0. Always
return 0 if the output buffer was to small. (#72544)
Tue Feb 26 21:44:01 2002 Owen Taylor <otaylor@redhat.com>
* config.status config.guess: Remove these files

184
glib/gdate.c
View File

@ -1322,11 +1322,12 @@ g_date_order (GDate *date1,
g_return_if_fail (g_date_valid (date1));
g_return_if_fail (g_date_valid (date2));
if (g_date_compare (date1, date2) == 1) {
GDate tmp = *date1;
*date1 = *date2;
*date2 = tmp;
}
if (g_date_compare (date1, date2) > 0)
{
GDate tmp = *date1;
*date1 = *date2;
*date2 = tmp;
}
}
gsize
@ -1336,109 +1337,96 @@ g_date_strftime (gchar *s,
const GDate *d)
{
struct tm tm;
const gchar *charset;
gsize locale_format_len = 0;
gchar *locale_format;
gsize tmplen;
gchar *tmpbuf;
gsize tmpbufsize;
gsize convlen = 0;
gchar *convbuf;
GError *error = NULL;
gsize retval;
g_return_val_if_fail (d != NULL, 0);
g_return_val_if_fail (g_date_valid (d), 0);
g_return_val_if_fail (slen > 0, 0);
g_return_val_if_fail (format != 0, 0);
g_return_val_if_fail (s != 0, 0);
g_date_to_struct_tm (d, &tm);
if (g_get_charset (&charset))
{
gint retval = strftime (s, slen, format, &tm);
if (retval == 0)
{
/* If retval == 0, the contents of s are undefined. We define
* them.
*/
s[0] = '\0';
}
locale_format = g_locale_from_utf8 (format, -1, NULL, &locale_format_len, &error);
return retval;
if (error)
{
g_warning (G_STRLOC "Error converting format to locale encoding: %s\n", error->message);
g_error_free (error);
s[0] = '\0';
return 0;
}
tmpbufsize = MAX (128, locale_format_len * 2);
while (TRUE)
{
tmpbuf = g_malloc (tmpbufsize);
/* Set the first byte to something other than '\0', to be able to
* recognize whether strftime actually failed or just returned "".
*/
tmpbuf[0] = '\1';
tmplen = strftime (tmpbuf, tmpbufsize, locale_format, &tm);
if (tmplen == 0 && tmpbuf[0] != '\0')
{
g_free (tmpbuf);
tmpbufsize *= 2;
if (tmpbufsize > 65536)
{
g_warning (G_STRLOC "Maximum buffer size for g_date_strftime exceeded: giving up\n");
g_free (locale_format);
s[0] = '\0';
return 0;
}
}
else
break;
}
g_free (locale_format);
convbuf = g_locale_to_utf8 (tmpbuf, tmplen, NULL, &convlen, &error);
g_free (tmpbuf);
if (error)
{
g_warning (G_STRLOC "Error converting results of strftime to UTF-8: %s\n", error->message);
g_error_free (error);
s[0] = '\0';
return 0;
}
if (slen <= convlen)
{
/* Ensure only whole characters are copied into the buffer.
*/
gchar *end = g_utf8_find_prev_char (convbuf, convbuf + slen);
g_assert (end != NULL);
convlen = end - convbuf;
/* Return 0 because the buffer isn't large enough.
*/
retval = 0;
}
else
{
gchar *locale_format;
gsize tmplen;
gchar *tmpbuf;
gsize tmpbufsize;
gsize convlen = 0;
gchar *convbuf;
GError *error = NULL;
locale_format = g_convert (format, -1 , charset, "UTF-8",
NULL, NULL, &error);
if (error)
{
g_warning (G_STRLOC "Error converting format to %s: %s\n",
charset, error->message);
g_error_free (error);
retval = convlen;
return 0;
}
tmpbufsize = MAX (128, strlen (locale_format) * 2);
while (TRUE)
{
tmpbuf = g_malloc (tmpbufsize + 1);
tmplen = strftime (tmpbuf, tmpbufsize + 1, locale_format, &tm);
if (tmplen == tmpbufsize + 1)
{
g_free (tmpbuf);
tmpbufsize *= 2;
}
else
break;
}
g_free (locale_format);
memcpy (s, convbuf, convlen);
s[convlen] = '\0';
g_free (convbuf);
if (tmplen == 0)
{
/* If retval == 0, the contents of s are undefined. We define
* them.
*/
g_free (locale_format);
s[0] = '\0';
return 0;
}
convbuf = g_convert (tmpbuf, tmplen, "UTF-8", charset, NULL, &convlen, &error);
g_free (tmpbuf);
if (error)
{
g_warning (G_STRLOC "Error converting results of strftime to UTF-8: %s\n", error->message);
g_error_free (error);
}
else
{
/* Only copy whole characters into the buffer
*/
gchar *in = convbuf;
gchar *out = s;
gchar *end = s + slen - 1;
while (*in)
{
int len = g_utf8_skip[*(guchar *)in];
if (out + len < end)
{
out += len;
in += len;
}
else
break;
}
memcpy (s, convbuf, out - s);
*out = '\0';
}
g_free (convbuf);
return convlen;
}
return retval;
}