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@ -18,21 +18,22 @@ diff -u -r ../glib-2.54.2/glib/gtimezone.c ./glib/gtimezone.c |
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/** |
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* SECTION:timezone |
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* @title: GTimeZone |
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@@ -392,7 +399,116 @@
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@@ -392,7 +399,117 @@
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gtz->transitions = NULL; |
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} |
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-#ifdef G_OS_UNIX
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+#ifdef __ANDROID__
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+/* Android uses a 'persist.sys.timezone' system property for the
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+ current timezone instead of a /etc/localtime file:
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+ https://android.googlesource.com/platform/ndk/+/android-2.2_r1/docs/system/libc/OVERVIEW.TXT#67
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+
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+ There are no files under /usr/share/zoneinfo - instead a single
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+ /system/usr/share/zoneinfo/tzdata file is used which contains all
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+ files compiled together with the following tool:
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+ https://android.googlesource.com/platform/system/timezone/+/master/zone_compactor/main/java/ZoneCompactor.java */
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+static GBytes*
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+ * current timezone instead of a /etc/localtime file:
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+ * https://android.googlesource.com/platform/ndk/+/android-2.2_r1/docs/system/libc/OVERVIEW.TXT#67
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+ *
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+ * There are no files under /usr/share/zoneinfo - instead a single
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+ * /system/usr/share/zoneinfo/tzdata file is used which contains all
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+ * files compiled together with the following tool:
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+ * https://android.googlesource.com/platform/system/timezone/+/master/zone_compactor/main/java/ZoneCompactor.java
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+ */
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+static GBytes *
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+zone_info_android (const gchar *identifier)
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+{
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+ struct tzdata_header
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@ -57,21 +58,21 @@ diff -u -r ../glib-2.54.2/glib/gtimezone.c ./glib/gtimezone.c |
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+ if (identifier == NULL)
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+ {
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+ if (__system_property_get ("persist.sys.timezone", sys_timezone) < 1)
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+ {
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+ g_warning ("__system_property_get(\"persist.sys.timezone\") failed");
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+ return NULL;
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+ }
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+ {
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+ g_warning ("__system_property_get(\"persist.sys.timezone\") failed");
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+ return NULL;
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+ }
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+ identifier = sys_timezone;
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+ }
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+
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+ tzdata_fd = TEMP_FAILURE_RETRY(open ("/system/usr/share/zoneinfo/tzdata", O_RDONLY));
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+ tzdata_fd = TEMP_FAILURE_RETRY (open ("/system/usr/share/zoneinfo/tzdata", O_RDONLY));
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+ if (tzdata_fd < 0)
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+ {
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+ g_warning ("Failed opening tzdata");
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+ return NULL;
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+ }
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+
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+ if (TEMP_FAILURE_RETRY(read (tzdata_fd, &header, sizeof(header)) < (ssize_t) sizeof (header)))
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+ if (TEMP_FAILURE_RETRY (read (tzdata_fd, &header, sizeof(header)) < (ssize_t) sizeof (header)))
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+ {
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+ g_warning ("Failed reading tzdata header");
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+ goto error;
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@ -83,7 +84,7 @@ diff -u -r ../glib-2.54.2/glib/gtimezone.c ./glib/gtimezone.c |
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+ uint32_t current_offset = header.index_offset;
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+ while (current_offset < header.data_offset)
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+ {
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+ if (TEMP_FAILURE_RETRY(read (tzdata_fd, &entry, sizeof(entry)) < (ssize_t) sizeof (entry)))
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+ if (TEMP_FAILURE_RETRY (read (tzdata_fd, &entry, sizeof(entry)) < (ssize_t) sizeof (entry)))
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+ {
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+ g_warning ("Failed reading tzdata index entry");
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+ goto error;
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@ -99,7 +100,7 @@ diff -u -r ../glib-2.54.2/glib/gtimezone.c ./glib/gtimezone.c |
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+ goto error;
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+ }
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+
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+ if (TEMP_FAILURE_RETRY(lseek (tzdata_fd, header.data_offset + entry.offset, SEEK_SET) == -1))
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+ if (TEMP_FAILURE_RETRY (lseek (tzdata_fd, header.data_offset + entry.offset, SEEK_SET) == -1))
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+ {
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+ g_warning ("Failed seeking to tzdata entry");
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+ goto error;
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@ -113,7 +114,7 @@ diff -u -r ../glib-2.54.2/glib/gtimezone.c ./glib/gtimezone.c |
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+ }
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+
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+ guint8* data = g_malloc (entry.length);
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+ if (TEMP_FAILURE_RETRY(read (tzdata_fd, data, entry.length) < entry.length))
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+ if (TEMP_FAILURE_RETRY (read (tzdata_fd, data, entry.length) < entry.length))
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+ {
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+ g_warning ("Failed reading tzdata entry");
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+ g_free (data);
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