From 0f7a044109b860443ecaa4f8a37652b1b4423057 Mon Sep 17 00:00:00 2001 From: Paul Eggert Date: Mon, 21 Aug 2006 07:26:38 +0000 Subject: Remove from CVS, since the bootstrap script generates them automatically. --- lib/posixtm.c | 338 ---------------------------------------------------------- 1 file changed, 338 deletions(-) delete mode 100644 lib/posixtm.c (limited to 'lib/posixtm.c') diff --git a/lib/posixtm.c b/lib/posixtm.c deleted file mode 100644 index 43161d2e0..000000000 --- a/lib/posixtm.c +++ /dev/null @@ -1,338 +0,0 @@ -/* Parse dates for touch and date. - - Copyright (C) 1989, 1990, 1991, 1998, 2000, 2001, 2002, 2003, 2004, 2005 - Free Software Foundation Inc. - - This program 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; either version 2, or (at your option) - any later version. - - This program 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, write to the Free Software Foundation, - Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ - -/* Yacc-based version written by Jim Kingdon and David MacKenzie. - Rewritten by Jim Meyering. */ - -#ifdef HAVE_CONFIG_H -# include -#endif - -#include - -#include -#include -#include -#include - -#ifdef TM_IN_SYS_TIME -# include -#else -# include -#endif - -#include "posixtm.h" - -#if USE_UNLOCKED_IO -# include "unlocked-io.h" -#endif - -/* ISDIGIT differs from isdigit, as follows: - - Its arg may be any int or unsigned int; it need not be an unsigned char - or EOF. - - It's typically faster. - POSIX says that only '0' through '9' are digits. Prefer ISDIGIT to - isdigit unless it's important to use the locale's definition - of `digit' even when the host does not conform to POSIX. */ -#define ISDIGIT(c) ((unsigned int) (c) - '0' <= 9) - -time_t mktime (); - -/* - POSIX requires: - - touch -t [[CC]YY]mmddhhmm[.ss] FILE... - 8, 10, or 12 digits, followed by optional .ss - (PDS_LEADING_YEAR | PDS_CENTURY | PDS_SECONDS) - - touch mmddhhmm[YY] FILE... (obsoleted by POSIX 1003.1-2001) - 8 or 10 digits, YY (if present) must be in the range 69-99 - (PDS_TRAILING_YEAR | PDS_PRE_2000) - - date mmddhhmm[[CC]YY] - 8, 10, or 12 digits - (PDS_TRAILING_YEAR | PDS_CENTURY) - -*/ - -static int -year (struct tm *tm, const int *digit_pair, size_t n, unsigned int syntax_bits) -{ - switch (n) - { - case 1: - tm->tm_year = *digit_pair; - /* Deduce the century based on the year. - POSIX requires that 00-68 be interpreted as 2000-2068, - and that 69-99 be interpreted as 1969-1999. */ - if (digit_pair[0] <= 68) - { - if (syntax_bits & PDS_PRE_2000) - return 1; - tm->tm_year += 100; - } - break; - - case 2: - if (! (syntax_bits & PDS_CENTURY)) - return 1; - tm->tm_year = digit_pair[0] * 100 + digit_pair[1] - 1900; - break; - - case 0: - { - time_t now; - struct tm *tmp; - - /* Use current year. */ - time (&now); - tmp = localtime (&now); - if (! tmp) - return 1; - tm->tm_year = tmp->tm_year; - } - break; - - default: - abort (); - } - - return 0; -} - -static int -posix_time_parse (struct tm *tm, const char *s, unsigned int syntax_bits) -{ - const char *dot = NULL; - int pair[6]; - int *p; - size_t i; - - size_t s_len = strlen (s); - size_t len = (((syntax_bits & PDS_SECONDS) && (dot = strchr (s, '.'))) - ? (size_t) (dot - s) - : s_len); - - if (len != 8 && len != 10 && len != 12) - return 1; - - if (dot) - { - if (!(syntax_bits & PDS_SECONDS)) - return 1; - - if (s_len - len != 3) - return 1; - } - - for (i = 0; i < len; i++) - if (!ISDIGIT (s[i])) - return 1; - - len /= 2; - for (i = 0; i < len; i++) - pair[i] = 10 * (s[2*i] - '0') + s[2*i + 1] - '0'; - - p = pair; - if (syntax_bits & PDS_LEADING_YEAR) - { - if (year (tm, p, len - 4, syntax_bits)) - return 1; - p += len - 4; - len = 4; - } - - /* Handle 8 digits worth of `MMDDhhmm'. */ - tm->tm_mon = *p++ - 1; - tm->tm_mday = *p++; - tm->tm_hour = *p++; - tm->tm_min = *p++; - len -= 4; - - /* Handle any trailing year. */ - if (syntax_bits & PDS_TRAILING_YEAR) - { - if (year (tm, p, len, syntax_bits)) - return 1; - } - - /* Handle seconds. */ - if (!dot) - { - tm->tm_sec = 0; - } - else - { - int seconds; - - ++dot; - if (!ISDIGIT (dot[0]) || !ISDIGIT (dot[1])) - return 1; - seconds = 10 * (dot[0] - '0') + dot[1] - '0'; - - tm->tm_sec = seconds; - } - - return 0; -} - -/* Parse a POSIX-style date, returning true if successful. */ - -bool -posixtime (time_t *p, const char *s, unsigned int syntax_bits) -{ - struct tm tm0 -#ifdef lint - /* Placate gcc-4's -Wuninitialized. - posix_time_parse fails to set all of tm0 only when it returns - nonzero (due to year() returning nonzero), and in that case, - this code doesn't use the tm0 at all. */ - = { 0, } -#endif - ; - struct tm tm1; - struct tm const *tm; - time_t t; - - if (posix_time_parse (&tm0, s, syntax_bits)) - return false; - - tm1 = tm0; - tm1.tm_isdst = -1; - t = mktime (&tm1); - - if (t != (time_t) -1) - tm = &tm1; - else - { - /* mktime returns -1 for errors, but -1 is also a valid time_t - value. Check whether an error really occurred. */ - tm = localtime (&t); - if (! tm) - return false; - } - - /* Reject dates like "September 31" and times like "25:61". */ - if ((tm0.tm_year ^ tm->tm_year) - | (tm0.tm_mon ^ tm->tm_mon) - | (tm0.tm_mday ^ tm->tm_mday) - | (tm0.tm_hour ^ tm->tm_hour) - | (tm0.tm_min ^ tm->tm_min) - | (tm0.tm_sec ^ tm->tm_sec)) - return false; - - *p = t; - return true; -} - -#ifdef TEST_POSIXTIME -/* - Test mainly with syntax_bits == 13 - (aka: (PDS_LEADING_YEAR | PDS_CENTURY | PDS_SECONDS)) - - This test data assumes Universal Time, e.g., TZ="UTC0". - - This test data also assumes that time_t is signed and is at least - 39 bits wide, so that it can represent all years from 0000 through - 9999. A host with 32-bit signed time_t can represent only time - stamps in the range 1901-12-13 20:45:52 through 2038-01-18 - 03:14:07 UTC, assuming POSIX time_t with no leap seconds, so test - cases outside this range will not work on such a host. - - Also, the first two lines of test data assume that the current - year is 2002. - -BEGIN-DATA -12131415.16 13 1039788916 Fri Dec 13 14:15:16 2002 -12131415.16 13 1039788916 Fri Dec 13 14:15:16 2002 -000001010000.00 13 -62167132800 Sun Jan 1 00:00:00 0000 -190112132045.52 13 -2147483648 Fri Dec 13 20:45:52 1901 -190112132045.53 13 -2147483647 Fri Dec 13 20:45:53 1901 -190112132046.52 13 -2147483588 Fri Dec 13 20:46:52 1901 -190112132145.52 13 -2147480048 Fri Dec 13 21:45:52 1901 -190112142045.52 13 -2147397248 Sat Dec 14 20:45:52 1901 -190201132045.52 13 -2144805248 Mon Jan 13 20:45:52 1902 -196912312359.59 13 -1 Wed Dec 31 23:59:59 1969 -197001010000.00 13 0 Thu Jan 1 00:00:00 1970 -197001010000.01 13 1 Thu Jan 1 00:00:01 1970 -197001010001.00 13 60 Thu Jan 1 00:01:00 1970 -197001010100.00 13 3600 Thu Jan 1 01:00:00 1970 -197001020000.00 13 86400 Fri Jan 2 00:00:00 1970 -197002010000.00 13 2678400 Sun Feb 1 00:00:00 1970 -197101010000.00 13 31536000 Fri Jan 1 00:00:00 1971 -197001000000.00 13 * * -197000010000.00 13 * * -197001010000.60 13 * * -197001010060.00 13 * * -197001012400.00 13 * * -197001320000.00 13 * * -197013010000.00 13 * * -203801190314.06 13 2147483646 Tue Jan 19 03:14:06 2038 -203801190314.07 13 2147483647 Tue Jan 19 03:14:07 2038 -203801190314.08 13 2147483648 Tue Jan 19 03:14:08 2038 -999912312359.59 13 253402300799 Fri Dec 31 23:59:59 9999 -1112131415 13 1323785700 Tue Dec 13 14:15:00 2011 -1112131415.16 13 1323785716 Tue Dec 13 14:15:16 2011 -201112131415.16 13 1323785716 Tue Dec 13 14:15:16 2011 -191112131415.16 13 -1831974284 Wed Dec 13 14:15:16 1911 -203712131415.16 13 2144326516 Sun Dec 13 14:15:16 2037 -3712131415.16 13 2144326516 Sun Dec 13 14:15:16 2037 -6812131415.16 13 3122633716 Thu Dec 13 14:15:16 2068 -6912131415.16 13 -1590284 Sat Dec 13 14:15:16 1969 -7012131415.16 13 29945716 Sun Dec 13 14:15:16 1970 -1213141599 2 945094500 Mon Dec 13 14:15:00 1999 -1213141500 2 976716900 Wed Dec 13 14:15:00 2000 -END-DATA - -*/ - -# define MAX_BUFF_LEN 1024 - -int -main (void) -{ - char buff[MAX_BUFF_LEN + 1]; - - buff[MAX_BUFF_LEN] = 0; - while (fgets (buff, MAX_BUFF_LEN, stdin) && buff[0]) - { - char time_str[MAX_BUFF_LEN]; - unsigned int syntax_bits; - time_t t; - if (sscanf (buff, "%s %u", time_str, &syntax_bits) != 2) - printf ("*\n"); - else - { - printf ("%-15s %2u ", time_str, syntax_bits); - if (posixtime (&t, time_str, syntax_bits)) - printf ("%12ld %s", (long int) t, ctime (&t)); - else - printf ("%12s %s", "*", "*\n"); - } - } - exit (0); - -} -#endif - -/* -Local Variables: -compile-command: "gcc -DTEST_POSIXTIME -DHAVE_CONFIG_H -I.. -g -O -Wall -W posixtm.c" -End: -*/ -- cgit v1.2.3-54-g00ecf