mirror of
https://github.com/netsurf-browser/netsurf
synced 2024-12-23 04:26:50 +03:00
133 lines
2.9 KiB
C
133 lines
2.9 KiB
C
/*
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* Copyright 2007 Rob Kendrick <rjek@netsurf-browser.org>
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* Copyright 2004-2007 James Bursa <bursa@users.sourceforge.net>
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* Copyright 2003 Phil Mellor <monkeyson@users.sourceforge.net>
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* Copyright 2003 John M Bell <jmb202@ecs.soton.ac.uk>
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* Copyright 2004 John Tytgat <joty@netsurf-browser.org>
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*
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* This file is part of NetSurf, http://www.netsurf-browser.org/
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*
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* NetSurf is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* NetSurf is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* \file utils/time.c
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* \brief Implementation of time operations.
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*/
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <curl/curl.h>
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#include "utils/errors.h"
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#include "utils/time.h"
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/* exported interface documented in utils/time.h */
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const char *rfc1123_date(time_t t)
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{
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static char ret[30];
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struct tm *tm = gmtime(&t);
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const char *days[] = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" },
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*months[] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun",
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"Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };
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snprintf(ret, sizeof ret, "%s, %02d %s %d %02d:%02d:%02d GMT",
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days[tm->tm_wday], tm->tm_mday, months[tm->tm_mon],
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tm->tm_year + 1900, tm->tm_hour, tm->tm_min,
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tm->tm_sec);
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return ret;
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}
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/* exported function documented in utils/time.h */
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int nsc_sntimet(char *str, size_t size, time_t *timep)
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{
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#ifndef HAVE_STRFTIME
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long long val;
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val = (long long)*timep;
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return snprintf(str, size, "%lld", val);
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#else
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struct tm *ltm;
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ltm = localtime(timep);
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if (ltm == NULL) {
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return -1;
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}
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return strftime(str, size, "%s", ltm);
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#endif
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}
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/* exported function documented in utils/time.h */
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nserror nsc_snptimet(const char *str, size_t size, time_t *timep)
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{
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time_t time_out;
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#ifndef HAVE_STRPTIME
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char *rstr;
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if (size < 1) {
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return NSERROR_BAD_PARAMETER;
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}
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errno = 0;
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time_out = (time_t)strtoll(str, &rstr, 10);
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/* The conversion may have a range faliure or no digits were found */
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if ((errno != 0) || (rstr == str)) {
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return NSERROR_BAD_PARAMETER;
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}
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#else
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struct tm ltm;
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if (size < 1) {
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return NSERROR_BAD_PARAMETER;
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}
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if (strptime(str, "%s", <m) == NULL) {
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return NSERROR_BAD_PARAMETER;
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}
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time_out = mktime(<m);
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#endif
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*timep = time_out;
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return NSERROR_OK;
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}
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/* exported function documented in utils/time.h */
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nserror nsc_strntimet(const char *str, size_t size, time_t *timep)
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{
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time_t result;
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result = curl_getdate(str, NULL);
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if (result == -1) {
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return NSERROR_INVALID;
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}
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*timep = result;
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return NSERROR_OK;
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}
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