summaryrefslogtreecommitdiff
path: root/utils/time.c
diff options
context:
space:
mode:
Diffstat (limited to 'utils/time.c')
-rw-r--r--utils/time.c132
1 files changed, 132 insertions, 0 deletions
diff --git a/utils/time.c b/utils/time.c
new file mode 100644
index 000000000..cf8acc0d6
--- /dev/null
+++ b/utils/time.c
@@ -0,0 +1,132 @@
+/*
+ * Copyright 2007 Rob Kendrick <rjek@netsurf-browser.org>
+ * Copyright 2004-2007 James Bursa <bursa@users.sourceforge.net>
+ * Copyright 2003 Phil Mellor <monkeyson@users.sourceforge.net>
+ * Copyright 2003 John M Bell <jmb202@ecs.soton.ac.uk>
+ * Copyright 2004 John Tytgat <joty@netsurf-browser.org>
+ *
+ * This file is part of NetSurf, http://www.netsurf-browser.org/
+ *
+ * NetSurf 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; version 2 of the License.
+ *
+ * NetSurf 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/>.
+ */
+
+/**
+ * \file utils/time.c
+ * \brief Implementation of time operations.
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <curl/curl.h>
+
+#include "utils/errors.h"
+#include "utils/time.h"
+
+
+/* exported interface documented in utils/time.h */
+const char *rfc1123_date(time_t t)
+{
+ static char ret[30];
+
+ struct tm *tm = gmtime(&t);
+ const char *days[] = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" },
+ *months[] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun",
+ "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };
+
+ snprintf(ret, sizeof ret, "%s, %02d %s %d %02d:%02d:%02d GMT",
+ days[tm->tm_wday], tm->tm_mday, months[tm->tm_mon],
+ tm->tm_year + 1900, tm->tm_hour, tm->tm_min,
+ tm->tm_sec);
+
+ return ret;
+}
+
+
+/* exported function documented in utils/time.h */
+int nsc_sntimet(char *str, size_t size, time_t *timep)
+{
+#ifndef HAVE_STRFTIME
+ long long val;
+ val = (long long)*timep;
+
+ return snprintf(str, size, "%lld", val);
+#else
+ struct tm *ltm;
+
+ ltm = localtime(timep);
+ if (ltm == NULL) {
+ return -1;
+ }
+
+ return strftime(str, size, "%s", ltm);
+#endif
+}
+
+
+/* exported function documented in utils/time.h */
+nserror nsc_snptimet(const char *str, size_t size, time_t *timep)
+{
+ time_t time_out;
+
+#ifndef HAVE_STRPTIME
+ char *rstr;
+
+ if (size < 1) {
+ return NSERROR_BAD_PARAMETER;
+ }
+
+ errno = 0;
+ time_out = (time_t)strtoll(str, &rstr, 10);
+
+ /* The conversion may have a range faliure or no digits were found */
+ if ((errno != 0) || (rstr == str)) {
+ return NSERROR_BAD_PARAMETER;
+ }
+
+#else
+ struct tm ltm;
+
+ if (size < 1) {
+ return NSERROR_BAD_PARAMETER;
+ }
+
+ if (strptime(str, "%s", &ltm) == NULL) {
+ return NSERROR_BAD_PARAMETER;
+ }
+
+ time_out = mktime(&ltm);
+
+#endif
+ *timep = time_out;
+
+ return NSERROR_OK;
+}
+
+
+/* exported function documented in utils/time.h */
+nserror nsc_strntimet(const char *str, size_t size, time_t *timep)
+{
+ time_t result;
+
+ result = curl_getdate(str, NULL);
+
+ if (result == -1) {
+ return NSERROR_INVALID;
+ }
+
+ *timep = result;
+
+ return NSERROR_OK;
+}