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- /*
- * Copyright (c) 2007, Cameron Rich
- *
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * * Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * * Neither the name of the axTLS project nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
- #include <sys/types.h>
- #include <ctype.h>
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
- #include <time.h>
- #include "axhttp.h"
- struct day_mon_map
- {
- const char* s;
- uint8_t l;
- };
- static struct day_mon_map wday_tab[] =
- {
- { "Sun", 0 }, { "Mon", 1 }, { "Tue", 2 }, { "Wed", 3 },
- { "Thu", 4 }, { "Fri", 5 }, { "Sat", 6 },
- };
- static struct day_mon_map mon_tab[] =
- {
- { "Jan", 0 }, { "Feb", 1 }, { "Mar", 2 }, { "Apr", 3 },
- { "May", 4 }, { "Jun", 5 }, { "Jul", 6 }, { "Aug", 7 },
- { "Sep", 8 }, { "Oct", 9 }, { "Nov", 10 }, { "Dec", 11 },
- };
- static int day_mon_map_compare(const char *v1, const char *v2)
- {
- return strcmp(((struct day_mon_map*)v1)->s, ((struct day_mon_map*)v2)->s);
- }
- void tdate_init(void)
- {
- qsort(wday_tab, sizeof(wday_tab)/sizeof(struct day_mon_map),
- sizeof(struct day_mon_map),
- (int (*)(const void *, const void *))day_mon_map_compare);
- qsort(mon_tab, sizeof(mon_tab)/sizeof(struct day_mon_map),
- sizeof(struct day_mon_map),
- (int (*)(const void *, const void *))day_mon_map_compare);
- }
- static int8_t day_mon_map_search(const char* str,
- const struct day_mon_map* tab, int n)
- {
- struct day_mon_map *search = bsearch(&str, tab, n,
- sizeof(struct day_mon_map),
- (int (*)(const void *, const void *))day_mon_map_compare);
- return search ? search->l : -1;
- }
- time_t tdate_parse(const char* str)
- {
- struct tm tm;
- char str_mon[4], str_wday[4];
- int tm_sec, tm_min, tm_hour, tm_mday, tm_year;
- /* Initialize. */
- memset(&tm, 0, sizeof(struct tm));
- /* wdy, DD mth YY HH:MM:SS GMT */
- if ((sscanf(str, "%3[a-zA-Z], %d %3[a-zA-Z] %d %d:%d:%d GMT",
- str_wday, &tm_mday, str_mon, &tm_year, &tm_hour, &tm_min,
- &tm_sec) == 7) ||
- /* wdy mth DD HH:MM:SS YY */
- (sscanf(str, "%3[a-zA-Z] %3[a-zA-Z] %d %d:%d:%d %d",
- str_wday, str_mon, &tm_mday, &tm_hour, &tm_min, &tm_sec,
- &tm_year) == 7))
- {
- int8_t tm_wday = day_mon_map_search(str_wday, wday_tab,
- sizeof(wday_tab)/sizeof(struct day_mon_map));
- int8_t tm_mon = day_mon_map_search(str_mon, mon_tab,
- sizeof(mon_tab)/sizeof(struct day_mon_map));
- if (tm_wday < 0 || tm_mon < 0)
- return -1;
- tm.tm_wday = tm_wday;
- tm.tm_mon = tm_mon;
- tm.tm_mday = tm_mday;
- tm.tm_hour = tm_hour;
- tm.tm_min = tm_min;
- tm.tm_sec = tm_sec;
- tm.tm_year = tm_year - 1900;
- return mktime(&tm);
- }
- return -1; /* error */
- }
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