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authorBrad King <brad.king@kitware.com>2014-10-08 19:07:44 (GMT)
committerBrad King <brad.king@kitware.com>2014-10-29 20:41:10 (GMT)
commit9cf069f88ba43931c46b245f567b0f8371a6067c (patch)
tree7c7cb0053221fc643357404141bad628d8575548 /Utilities/cmcurl/parsedate.c
parent15c994ebdc9674bb057567370333ee0330a60ad2 (diff)
downloadCMake-9cf069f88ba43931c46b245f567b0f8371a6067c.zip
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curl: Move sources back into upstream layout
Update our build files as needed to compensate.
Diffstat (limited to 'Utilities/cmcurl/parsedate.c')
-rw-r--r--Utilities/cmcurl/parsedate.c425
1 files changed, 0 insertions, 425 deletions
diff --git a/Utilities/cmcurl/parsedate.c b/Utilities/cmcurl/parsedate.c
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-/***************************************************************************
- * _ _ ____ _
- * Project ___| | | | _ \| |
- * / __| | | | |_) | |
- * | (__| |_| | _ <| |___
- * \___|\___/|_| \_\_____|
- *
- * Copyright (C) 1998 - 2006, Daniel Stenberg, <daniel@haxx.se>, et al.
- *
- * This software is licensed as described in the file COPYING, which
- * you should have received as part of this distribution. The terms
- * are also available at http://curl.haxx.se/docs/copyright.html.
- *
- * You may opt to use, copy, modify, merge, publish, distribute and/or sell
- * copies of the Software, and permit persons to whom the Software is
- * furnished to do so, under the terms of the COPYING file.
- *
- * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
- * KIND, either express or implied.
- *
- * $Id$
- ***************************************************************************/
-/*
- A brief summary of the date string formats this parser groks:
-
- RFC 2616 3.3.1
-
- Sun, 06 Nov 1994 08:49:37 GMT ; RFC 822, updated by RFC 1123
- Sunday, 06-Nov-94 08:49:37 GMT ; RFC 850, obsoleted by RFC 1036
- Sun Nov 6 08:49:37 1994 ; ANSI C's asctime() format
-
- we support dates without week day name:
-
- 06 Nov 1994 08:49:37 GMT
- 06-Nov-94 08:49:37 GMT
- Nov 6 08:49:37 1994
-
- without the time zone:
-
- 06 Nov 1994 08:49:37
- 06-Nov-94 08:49:37
-
- weird order:
-
- 1994 Nov 6 08:49:37 (GNU date fails)
- GMT 08:49:37 06-Nov-94 Sunday
- 94 6 Nov 08:49:37 (GNU date fails)
-
- time left out:
-
- 1994 Nov 6
- 06-Nov-94
- Sun Nov 6 94
-
- unusual separators:
-
- 1994.Nov.6
- Sun/Nov/6/94/GMT
-
- commonly used time zone names:
-
- Sun, 06 Nov 1994 08:49:37 CET
- 06 Nov 1994 08:49:37 EST
-
- time zones specified using RFC822 style:
-
- Sun, 12 Sep 2004 15:05:58 -0700
- Sat, 11 Sep 2004 21:32:11 +0200
-
- compact numerical date strings:
-
- 20040912 15:05:58 -0700
- 20040911 +0200
-
-*/
-#include "setup.h"
-#include <stdio.h>
-#include <ctype.h>
-#include <string.h>
-
-#ifdef HAVE_STDLIB_H
-#include <stdlib.h> /* for strtol() */
-#endif
-
-#include <curl/curl.h>
-
-static time_t Curl_parsedate(const char *date);
-
-const char * const Curl_wkday[] =
-{"Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"};
-static const char * const weekday[] =
-{ "Monday", "Tuesday", "Wednesday", "Thursday",
- "Friday", "Saturday", "Sunday" };
-const char * const Curl_month[]=
-{ "Jan", "Feb", "Mar", "Apr", "May", "Jun",
- "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };
-
-struct tzinfo {
- const char *name;
- int offset; /* +/- in minutes */
-};
-
-/* Here's a bunch of frequently used time zone names. These were supported
- by the old getdate parser. */
-#define tDAYZONE -60 /* offset for daylight savings time */
-static const struct tzinfo tz[]= {
- {"GMT", 0}, /* Greenwich Mean */
- {"UTC", 0}, /* Universal (Coordinated) */
- {"WET", 0}, /* Western European */
- {"BST", 0 tDAYZONE}, /* British Summer */
- {"WAT", 60}, /* West Africa */
- {"AST", 240}, /* Atlantic Standard */
- {"ADT", 240 tDAYZONE}, /* Atlantic Daylight */
- {"EST", 300}, /* Eastern Standard */
- {"EDT", 300 tDAYZONE}, /* Eastern Daylight */
- {"CST", 360}, /* Central Standard */
- {"CDT", 360 tDAYZONE}, /* Central Daylight */
- {"MST", 420}, /* Mountain Standard */
- {"MDT", 420 tDAYZONE}, /* Mountain Daylight */
- {"PST", 480}, /* Pacific Standard */
- {"PDT", 480 tDAYZONE}, /* Pacific Daylight */
- {"YST", 540}, /* Yukon Standard */
- {"YDT", 540 tDAYZONE}, /* Yukon Daylight */
- {"HST", 600}, /* Hawaii Standard */
- {"HDT", 600 tDAYZONE}, /* Hawaii Daylight */
- {"CAT", 600}, /* Central Alaska */
- {"AHST", 600}, /* Alaska-Hawaii Standard */
- {"NT", 660}, /* Nome */
- {"IDLW", 720}, /* International Date Line West */
- {"CET", -60}, /* Central European */
- {"MET", -60}, /* Middle European */
- {"MEWT", -60}, /* Middle European Winter */
- {"MEST", -60 tDAYZONE}, /* Middle European Summer */
- {"CEST", -60 tDAYZONE}, /* Central European Summer */
- {"MESZ", -60 tDAYZONE}, /* Middle European Summer */
- {"FWT", -60}, /* French Winter */
- {"FST", -60 tDAYZONE}, /* French Summer */
- {"EET", -120}, /* Eastern Europe, USSR Zone 1 */
- {"WAST", -420}, /* West Australian Standard */
- {"WADT", -420 tDAYZONE}, /* West Australian Daylight */
- {"CCT", -480}, /* China Coast, USSR Zone 7 */
- {"JST", -540}, /* Japan Standard, USSR Zone 8 */
- {"EAST", -600}, /* Eastern Australian Standard */
- {"EADT", -600 tDAYZONE}, /* Eastern Australian Daylight */
- {"GST", -600}, /* Guam Standard, USSR Zone 9 */
- {"NZT", -720}, /* New Zealand */
- {"NZST", -720}, /* New Zealand Standard */
- {"NZDT", -720 tDAYZONE}, /* New Zealand Daylight */
- {"IDLE", -720}, /* International Date Line East */
-};
-
-/* returns:
- -1 no day
- 0 monday - 6 sunday
-*/
-
-static int checkday(char *check, size_t len)
-{
- int i;
- const char * const *what;
- bool found= FALSE;
- if(len > 3)
- what = &weekday[0];
- else
- what = &Curl_wkday[0];
- for(i=0; i<7; i++) {
- if(curl_strequal(check, what[0])) {
- found=TRUE;
- break;
- }
- what++;
- }
- return found?i:-1;
-}
-
-static int checkmonth(char *check)
-{
- int i;
- const char * const *what;
- bool found= FALSE;
-
- what = &Curl_month[0];
- for(i=0; i<12; i++) {
- if(curl_strequal(check, what[0])) {
- found=TRUE;
- break;
- }
- what++;
- }
- return found?i:-1; /* return the offset or -1, no real offset is -1 */
-}
-
-/* return the time zone offset between GMT and the input one, in number
- of seconds or -1 if the timezone wasn't found/legal */
-
-static int checktz(char *check)
-{
- unsigned int i;
- const struct tzinfo *what;
- bool found= FALSE;
-
- what = tz;
- for(i=0; i< sizeof(tz)/sizeof(tz[0]); i++) {
- if(curl_strequal(check, what->name)) {
- found=TRUE;
- break;
- }
- what++;
- }
- return found?what->offset*60:-1;
-}
-
-static void skip(const char **date)
-{
- /* skip everything that aren't letters or digits */
- while(**date && !ISALNUM(**date))
- (*date)++;
-}
-
-enum assume {
- DATE_MDAY,
- DATE_YEAR,
- DATE_TIME
-};
-
-static time_t Curl_parsedate(const char *date)
-{
- time_t t = 0;
- int wdaynum=-1; /* day of the week number, 0-6 (mon-sun) */
- int monnum=-1; /* month of the year number, 0-11 */
- int mdaynum=-1; /* day of month, 1 - 31 */
- int hournum=-1;
- int minnum=-1;
- int secnum=-1;
- int yearnum=-1;
- int tzoff=-1;
- struct tm tm;
- enum assume dignext = DATE_MDAY;
- const char *indate = date; /* save the original pointer */
- int part = 0; /* max 6 parts */
-
- while(*date && (part < 6)) {
- bool found=FALSE;
-
- skip(&date);
-
- if(ISALPHA(*date)) {
- /* a name coming up */
- char buf[32]="";
- size_t len;
- sscanf(date, "%31[A-Za-z]", buf);
- len = strlen(buf);
-
- if(wdaynum == -1) {
- wdaynum = checkday(buf, len);
- if(wdaynum != -1)
- found = TRUE;
- }
- if(!found && (monnum == -1)) {
- monnum = checkmonth(buf);
- if(monnum != -1)
- found = TRUE;
- }
-
- if(!found && (tzoff == -1)) {
- /* this just must be a time zone string */
- tzoff = checktz(buf);
- if(tzoff != -1)
- found = TRUE;
- }
-
- if(!found)
- return -1; /* bad string */
-
- date += len;
- }
- else if(ISDIGIT(*date)) {
- /* a digit */
- int val;
- char *end;
- if((secnum == -1) &&
- (3 == sscanf(date, "%02d:%02d:%02d", &hournum, &minnum, &secnum))) {
- /* time stamp! */
- date += 8;
- found = TRUE;
- }
- else {
- val = (int)strtol(date, &end, 10);
-
- if((tzoff == -1) &&
- ((end - date) == 4) &&
- (val < 1300) &&
- (indate< date) &&
- ((date[-1] == '+' || date[-1] == '-'))) {
- /* four digits and a value less than 1300 and it is preceeded with
- a plus or minus. This is a time zone indication. */
- found = TRUE;
- tzoff = (val/100 * 60 + val%100)*60;
-
- /* the + and - prefix indicates the local time compared to GMT,
- this we need ther reversed math to get what we want */
- tzoff = date[-1]=='+'?-tzoff:tzoff;
- }
-
- if(((end - date) == 8) &&
- (yearnum == -1) &&
- (monnum == -1) &&
- (mdaynum == -1)) {
- /* 8 digits, no year, month or day yet. This is YYYYMMDD */
- found = TRUE;
- yearnum = val/10000;
- monnum = (val%10000)/100-1; /* month is 0 - 11 */
- mdaynum = val%100;
- }
-
- if(!found && (dignext == DATE_MDAY) && (mdaynum == -1)) {
- if((val > 0) && (val<32)) {
- mdaynum = val;
- found = TRUE;
- }
- dignext = DATE_YEAR;
- }
-
- if(!found && (dignext == DATE_YEAR) && (yearnum == -1)) {
- yearnum = val;
- found = TRUE;
- if(yearnum < 1900) {
- if (yearnum > 70)
- yearnum += 1900;
- else
- yearnum += 2000;
- }
- if(mdaynum == -1)
- dignext = DATE_MDAY;
- }
-
- if(!found)
- return -1;
-
- date = end;
- }
- }
-
- part++;
- }
-
- if(-1 == secnum)
- secnum = minnum = hournum = 0; /* no time, make it zero */
-
- if((-1 == mdaynum) ||
- (-1 == monnum) ||
- (-1 == yearnum))
- /* lacks vital info, fail */
- return -1;
-
-#if SIZEOF_TIME_T < 5
- /* 32 bit time_t can only hold dates to the beginning of 2038 */
- if(yearnum > 2037)
- return 0x7fffffff;
-#endif
-
- tm.tm_sec = secnum;
- tm.tm_min = minnum;
- tm.tm_hour = hournum;
- tm.tm_mday = mdaynum;
- tm.tm_mon = monnum;
- tm.tm_year = yearnum - 1900;
- tm.tm_wday = 0;
- tm.tm_yday = 0;
- tm.tm_isdst = 0;
-
- /* mktime() returns a time_t. time_t is often 32 bits, even on many
- architectures that feature 64 bit 'long'.
-
- Some systems have 64 bit time_t and deal with years beyond 2038. However,
- even some of the systems with 64 bit time_t returns -1 for dates beyond
- 03:14:07 UTC, January 19, 2038. (Such as AIX 5100-06)
- */
- t = mktime(&tm);
-
- /* time zone adjust (cast t to int to compare to negative one) */
- if(-1 != (int)t) {
- struct tm *gmt;
- long delta;
- time_t t2;
-
-#ifdef HAVE_GMTIME_R
- /* thread-safe version */
- struct tm keeptime2;
- gmt = (struct tm *)gmtime_r(&t, &keeptime2);
- if(!gmt)
- return -1; /* illegal date/time */
- t2 = mktime(gmt);
-#else
- /* It seems that at least the MSVC version of mktime() doesn't work
- properly if it gets the 'gmt' pointer passed in (which is a pointer
- returned from gmtime() pointing to static memory), so instead we copy
- the tm struct to a local struct and pass a pointer to that struct as
- input to mktime(). */
- struct tm gmt2;
- gmt = gmtime(&t); /* use gmtime_r() if available */
- if(!gmt)
- return -1; /* illegal date/time */
- gmt2 = *gmt;
- t2 = mktime(&gmt2);
-#endif
-
- /* Add the time zone diff (between the given timezone and GMT) and the
- diff between the local time zone and GMT. */
- delta = (long)((tzoff!=-1?tzoff:0) + (t - t2));
-
- if((delta>0) && (t + delta < t))
- return -1; /* time_t overflow */
-
- t += delta;
- }
-
- return t;
-}
-
-time_t curl_getdate(const char *p, const time_t *now)
-{
- (void)now;
- return Curl_parsedate(p);
-}