/* Replacements for routines missing on some systems.
- Copyright (C) 1996-2005 Free Software Foundation, Inc.
+ Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+ 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software
+ Foundation, Inc.
This file is part of GNU Wget.
GNU Wget 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 of the License, or
+the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
GNU Wget is distributed in the hope that it will be useful,
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
-along with Wget; if not, write to the Free Software Foundation, Inc.,
-51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+along with Wget. If not, see <http://www.gnu.org/licenses/>.
-In addition, as a special exception, the Free Software Foundation
-gives permission to link the code of its release of Wget with the
-OpenSSL project's "OpenSSL" library (or with modified versions of it
-that use the same license as the "OpenSSL" library), and distribute
-the linked executables. You must obey the GNU General Public License
-in all respects for all of the code used other than "OpenSSL". If you
-modify this file, you may extend this exception to your version of the
-file, but you are not obligated to do so. If you do not wish to do
-so, delete this exception statement from your version. */
+Additional permission under GNU GPL version 3 section 7
-#include <config.h>
+If you modify this program, or any covered work, by linking or
+combining it with the OpenSSL project's OpenSSL library (or a
+modified version of that library), containing parts covered by the
+terms of the OpenSSL or SSLeay licenses, the Free Software Foundation
+grants you additional permission to convey the resulting work.
+Corresponding Source for a non-source form of such a combination
+shall include the source code for the parts of OpenSSL used as well
+as that of the covered work. */
+
+#include "wget.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
-#ifdef HAVE_UNISTD_H
-# include <unistd.h>
-#endif
+#include <unistd.h>
#include <errno.h>
-#include "wget.h"
-
/* Some systems lack certain functions normally taken for granted.
For example, Windows doesn't have strptime, and some systems don't
have a usable fnmatch. This file should contain fallback
do
{
- c1 = TOLOWER (*p1++);
- c2 = TOLOWER (*p2++);
+ c1 = c_tolower (*p1++);
+ c2 = c_tolower (*p2++);
if (c1 == '\0')
- break;
+ break;
}
while (c1 == c2);
do
{
- c1 = TOLOWER (*p1++);
- c2 = TOLOWER (*p2++);
+ c1 = c_tolower (*p1++);
+ c2 = c_tolower (*p2++);
if (c1 == '\0' || c1 != c2)
- return c1 - c2;
+ return c1 - c2;
} while (--n > 0);
return c1 - c2;
}
#endif /* not HAVE_STRNCASECMP */
+
+#ifndef HAVE_MEMRCHR
+/* memrchr is a GNU extension. It is like the memchr function, except
+ that it searches backwards from the end of the n bytes pointed to
+ by s instead of forwards from the front. */
+
+void *
+memrchr (const void *s, int c, size_t n)
+{
+ const char *b = s;
+ const char *e = b + n;
+ while (e > b)
+ if (*--e == c)
+ return (void *) e;
+ return NULL;
+}
+#endif
\f
/* strptime is required by POSIX, but it is missing from Windows,
which means we must keep a fallback implementation. It is
- reportedly missing or broken on many older systems as well. */
+ reportedly missing or broken on many older Unix systems as well, so
+ it's good to have around. */
#ifndef HAVE_STRPTIME
/* From GNU libc 2.1.3. */
#define match_char(ch1, ch2) if (ch1 != ch2) return NULL
#if defined __GNUC__ && __GNUC__ >= 2
# define match_string(cs1, s2) \
- ({ size_t len = strlen (cs1); \
- int result = strncasecmp ((cs1), (s2), len) == 0; \
- if (result) (s2) += len; \
+ ({ size_t len = strlen (cs1); \
+ int result = strncasecmp ((cs1), (s2), len) == 0; \
+ if (result) (s2) += len; \
result; })
#else
/* Oh come on. Get a reasonable compiler. */
/* We intentionally do not use isdigit() for testing because this will
lead to problems with the wide character version. */
#define get_number(from, to, n) \
- do { \
- int __n = n; \
- val = 0; \
- while (*rp == ' ') \
- ++rp; \
- if (*rp < '0' || *rp > '9') \
- return NULL; \
- do { \
- val *= 10; \
- val += *rp++ - '0'; \
- } while (--__n > 0 && val * 10 <= to && *rp >= '0' && *rp <= '9'); \
- if (val < from || val > to) \
- return NULL; \
+ do { \
+ int __n = n; \
+ val = 0; \
+ while (*rp == ' ') \
+ ++rp; \
+ if (*rp < '0' || *rp > '9') \
+ return NULL; \
+ do { \
+ val *= 10; \
+ val += *rp++ - '0'; \
+ } while (--__n > 0 && val * 10 <= to && *rp >= '0' && *rp <= '9'); \
+ if (val < from || val > to) \
+ return NULL; \
} while (0)
#ifdef _NL_CURRENT
/* Added check for __GNUC__ extensions here for Wget. --abbotti */
# if defined __GNUC__ && __GNUC__ >= 2
# define get_alt_number(from, to, n) \
- ({ \
- __label__ do_normal; \
- if (*decided != raw) \
- { \
- const char *alts = _NL_CURRENT (LC_TIME, ALT_DIGITS); \
- int __n = n; \
- int any = 0; \
- while (*rp == ' ') \
- ++rp; \
- val = 0; \
- do { \
- val *= 10; \
- while (*alts != '\0') \
- { \
- size_t len = strlen (alts); \
- if (strncasecmp (alts, rp, len) == 0) \
- break; \
- alts += len + 1; \
- ++val; \
- } \
- if (*alts == '\0') \
- { \
- if (*decided == not && ! any) \
- goto do_normal; \
- /* If we haven't read anything it's an error. */ \
- if (! any) \
- return NULL; \
- /* Correct the premature multiplication. */ \
- val /= 10; \
- break; \
- } \
- else \
- *decided = loc; \
- } while (--__n > 0 && val * 10 <= to); \
- if (val < from || val > to) \
- return NULL; \
- } \
- else \
- { \
- do_normal: \
- get_number (from, to, n); \
- } \
- 0; \
+ ({ \
+ __label__ do_normal; \
+ if (*decided != raw) \
+ { \
+ const char *alts = _NL_CURRENT (LC_TIME, ALT_DIGITS); \
+ int __n = n; \
+ int any = 0; \
+ while (*rp == ' ') \
+ ++rp; \
+ val = 0; \
+ do { \
+ val *= 10; \
+ while (*alts != '\0') \
+ { \
+ size_t len = strlen (alts); \
+ if (strncasecmp (alts, rp, len) == 0) \
+ break; \
+ alts += len + 1; \
+ ++val; \
+ } \
+ if (*alts == '\0') \
+ { \
+ if (*decided == not && ! any) \
+ goto do_normal; \
+ /* If we haven't read anything it's an error. */ \
+ if (! any) \
+ return NULL; \
+ /* Correct the premature multiplication. */ \
+ val /= 10; \
+ break; \
+ } \
+ else \
+ *decided = loc; \
+ } while (--__n > 0 && val * 10 <= to); \
+ if (val < from || val > to) \
+ return NULL; \
+ } \
+ else \
+ { \
+ do_normal: \
+ get_number (from, to, n); \
+ } \
+ 0; \
})
# else
# define get_alt_number(from, to, n) \
do {
- if (*decided != raw) \
- { \
- const char *alts = _NL_CURRENT (LC_TIME, ALT_DIGITS); \
- int __n = n; \
- int any = 0; \
- while (*rp == ' ') \
- ++rp; \
- val = 0; \
- do { \
- val *= 10; \
- while (*alts != '\0') \
- { \
- size_t len = strlen (alts); \
- if (strncasecmp (alts, rp, len) == 0) \
- break; \
- alts += len + 1; \
- ++val; \
- } \
- if (*alts == '\0') \
- { \
- if (*decided == not && ! any) \
- goto do_normal; \
- /* If we haven't read anything it's an error. */ \
- if (! any) \
- return NULL; \
- /* Correct the premature multiplication. */ \
- val /= 10; \
- break; \
- } \
- else \
- *decided = loc; \
- } while (--__n > 0 && val * 10 <= to); \
- if (val < from || val > to) \
- return NULL; \
- } \
- else \
- { \
- do_normal: \
- get_number (from, to, n); \
- } \
+ if (*decided != raw) \
+ { \
+ const char *alts = _NL_CURRENT (LC_TIME, ALT_DIGITS); \
+ int __n = n; \
+ int any = 0; \
+ while (*rp == ' ') \
+ ++rp; \
+ val = 0; \
+ do { \
+ val *= 10; \
+ while (*alts != '\0') \
+ { \
+ size_t len = strlen (alts); \
+ if (strncasecmp (alts, rp, len) == 0) \
+ break; \
+ alts += len + 1; \
+ ++val; \
+ } \
+ if (*alts == '\0') \
+ { \
+ if (*decided == not && ! any) \
+ goto do_normal; \
+ /* If we haven't read anything it's an error. */ \
+ if (! any) \
+ return NULL; \
+ /* Correct the premature multiplication. */ \
+ val /= 10; \
+ break; \
+ } \
+ else \
+ *decided = loc; \
+ } while (--__n > 0 && val * 10 <= to); \
+ if (val < from || val > to) \
+ return NULL; \
+ } \
+ else \
+ { \
+ do_normal: \
+ get_number (from, to, n); \
+ } \
} while (0)
# endif /* defined __GNUC__ && __GNUC__ >= 2 */
#else
# define get_alt_number(from, to, n) \
- /* We don't have the alternate representation. */ \
+ /* We don't have the alternate representation. */ \
get_number(from, to, n)
#endif
#define recursive(new_fmt) \
- (*(new_fmt) != '\0' \
+ (*(new_fmt) != '\0' \
&& (rp = strptime_internal (rp, (new_fmt), tm, decided)) != NULL)
#ifndef __isleap
/* Nonzero if YEAR is a leap year (every 4 years,
except every 100th isn't, and every 400th is). */
-# define __isleap(year) \
+# define __isleap(year) \
((year) % 4 == 0 && ((year) % 100 != 0 || (year) % 400 == 0))
#endif
the weekday. */
int corr_year = 1900 + tm->tm_year - (tm->tm_mon < 2);
int wday = (-473
- + (365 * (tm->tm_year - 70))
- + (corr_year / 4)
- - ((corr_year / 4) / 25) + ((corr_year / 4) % 25 < 0)
- + (((corr_year / 4) / 25) / 4)
- + __mon_yday[0][tm->tm_mon]
- + tm->tm_mday - 1);
+ + (365 * (tm->tm_year - 70))
+ + (corr_year / 4)
+ - ((corr_year / 4) / 25) + ((corr_year / 4) % 25 < 0)
+ + (((corr_year / 4) / 25) / 4)
+ + __mon_yday[0][tm->tm_mon]
+ + tm->tm_mday - 1);
tm->tm_wday = ((wday % 7) + 7) % 7;
}
day_of_the_year (struct tm *tm)
{
tm->tm_yday = (__mon_yday[__isleap (1900 + tm->tm_year)][tm->tm_mon]
- + (tm->tm_mday - 1));
+ + (tm->tm_mday - 1));
}
static char *
internal_function
#endif
strptime_internal __P ((const char *buf, const char *format, struct tm *tm,
- enum locale_status *decided));
+ enum locale_status *decided));
static char *
#ifdef _LIBC
while (*fmt != '\0')
{
/* A white space in the format string matches 0 more or white
- space in the input string. */
- if (ISSPACE (*fmt))
- {
- while (ISSPACE (*rp))
- ++rp;
- ++fmt;
- continue;
- }
+ space in the input string. */
+ if (c_isspace (*fmt))
+ {
+ while (c_isspace (*rp))
+ ++rp;
+ ++fmt;
+ continue;
+ }
/* Any character but `%' must be matched by the same character
- in the iput string. */
+ in the iput string. */
if (*fmt != '%')
- {
- match_char (*fmt++, *rp++);
- continue;
- }
+ {
+ match_char (*fmt++, *rp++);
+ continue;
+ }
++fmt;
#ifndef _NL_CURRENT
#endif
switch (*fmt++)
- {
- case '%':
- /* Match the `%' character itself. */
- match_char ('%', *rp++);
- break;
- case 'a':
- case 'A':
- /* Match day of week. */
- for (cnt = 0; cnt < 7; ++cnt)
- {
+ {
+ case '%':
+ /* Match the `%' character itself. */
+ match_char ('%', *rp++);
+ break;
+ case 'a':
+ case 'A':
+ /* Match day of week. */
+ for (cnt = 0; cnt < 7; ++cnt)
+ {
#ifdef _NL_CURRENT
- if (*decided !=raw)
- {
- if (match_string (_NL_CURRENT (LC_TIME, DAY_1 + cnt), rp))
- {
- if (*decided == not
- && strcmp (_NL_CURRENT (LC_TIME, DAY_1 + cnt),
- weekday_name[cnt]))
- *decided = loc;
- break;
- }
- if (match_string (_NL_CURRENT (LC_TIME, ABDAY_1 + cnt), rp))
- {
- if (*decided == not
- && strcmp (_NL_CURRENT (LC_TIME, ABDAY_1 + cnt),
- ab_weekday_name[cnt]))
- *decided = loc;
- break;
- }
- }
+ if (*decided !=raw)
+ {
+ if (match_string (_NL_CURRENT (LC_TIME, DAY_1 + cnt), rp))
+ {
+ if (*decided == not
+ && strcmp (_NL_CURRENT (LC_TIME, DAY_1 + cnt),
+ weekday_name[cnt]))
+ *decided = loc;
+ break;
+ }
+ if (match_string (_NL_CURRENT (LC_TIME, ABDAY_1 + cnt), rp))
+ {
+ if (*decided == not
+ && strcmp (_NL_CURRENT (LC_TIME, ABDAY_1 + cnt),
+ ab_weekday_name[cnt]))
+ *decided = loc;
+ break;
+ }
+ }
#endif
- if (*decided != loc
- && (match_string (weekday_name[cnt], rp)
- || match_string (ab_weekday_name[cnt], rp)))
- {
- *decided = raw;
- break;
- }
- }
- if (cnt == 7)
- /* Does not match a weekday name. */
- return NULL;
- tm->tm_wday = cnt;
- have_wday = 1;
- break;
- case 'b':
- case 'B':
- case 'h':
- /* Match month name. */
- for (cnt = 0; cnt < 12; ++cnt)
- {
+ if (*decided != loc
+ && (match_string (weekday_name[cnt], rp)
+ || match_string (ab_weekday_name[cnt], rp)))
+ {
+ *decided = raw;
+ break;
+ }
+ }
+ if (cnt == 7)
+ /* Does not match a weekday name. */
+ return NULL;
+ tm->tm_wday = cnt;
+ have_wday = 1;
+ break;
+ case 'b':
+ case 'B':
+ case 'h':
+ /* Match month name. */
+ for (cnt = 0; cnt < 12; ++cnt)
+ {
#ifdef _NL_CURRENT
- if (*decided !=raw)
- {
- if (match_string (_NL_CURRENT (LC_TIME, MON_1 + cnt), rp))
- {
- if (*decided == not
- && strcmp (_NL_CURRENT (LC_TIME, MON_1 + cnt),
- month_name[cnt]))
- *decided = loc;
- break;
- }
- if (match_string (_NL_CURRENT (LC_TIME, ABMON_1 + cnt), rp))
- {
- if (*decided == not
- && strcmp (_NL_CURRENT (LC_TIME, ABMON_1 + cnt),
- ab_month_name[cnt]))
- *decided = loc;
- break;
- }
- }
+ if (*decided !=raw)
+ {
+ if (match_string (_NL_CURRENT (LC_TIME, MON_1 + cnt), rp))
+ {
+ if (*decided == not
+ && strcmp (_NL_CURRENT (LC_TIME, MON_1 + cnt),
+ month_name[cnt]))
+ *decided = loc;
+ break;
+ }
+ if (match_string (_NL_CURRENT (LC_TIME, ABMON_1 + cnt), rp))
+ {
+ if (*decided == not
+ && strcmp (_NL_CURRENT (LC_TIME, ABMON_1 + cnt),
+ ab_month_name[cnt]))
+ *decided = loc;
+ break;
+ }
+ }
#endif
- if (match_string (month_name[cnt], rp)
- || match_string (ab_month_name[cnt], rp))
- {
- *decided = raw;
- break;
- }
- }
- if (cnt == 12)
- /* Does not match a month name. */
- return NULL;
- tm->tm_mon = cnt;
- want_xday = 1;
- break;
- case 'c':
- /* Match locale's date and time format. */
+ if (match_string (month_name[cnt], rp)
+ || match_string (ab_month_name[cnt], rp))
+ {
+ *decided = raw;
+ break;
+ }
+ }
+ if (cnt == 12)
+ /* Does not match a month name. */
+ return NULL;
+ tm->tm_mon = cnt;
+ want_xday = 1;
+ break;
+ case 'c':
+ /* Match locale's date and time format. */
#ifdef _NL_CURRENT
- if (*decided != raw)
- {
- if (!recursive (_NL_CURRENT (LC_TIME, D_T_FMT)))
- {
- if (*decided == loc)
- return NULL;
- else
- rp = rp_backup;
- }
- else
- {
- if (*decided == not &&
- strcmp (_NL_CURRENT (LC_TIME, D_T_FMT), HERE_D_T_FMT))
- *decided = loc;
- want_xday = 1;
- break;
- }
- *decided = raw;
- }
+ if (*decided != raw)
+ {
+ if (!recursive (_NL_CURRENT (LC_TIME, D_T_FMT)))
+ {
+ if (*decided == loc)
+ return NULL;
+ else
+ rp = rp_backup;
+ }
+ else
+ {
+ if (*decided == not &&
+ strcmp (_NL_CURRENT (LC_TIME, D_T_FMT), HERE_D_T_FMT))
+ *decided = loc;
+ want_xday = 1;
+ break;
+ }
+ *decided = raw;
+ }
#endif
- if (!recursive (HERE_D_T_FMT))
- return NULL;
- want_xday = 1;
- break;
- case 'C':
- /* Match century number. */
- get_number (0, 99, 2);
- century = val;
- want_xday = 1;
- break;
- case 'd':
- case 'e':
- /* Match day of month. */
- get_number (1, 31, 2);
- tm->tm_mday = val;
- have_mday = 1;
- want_xday = 1;
- break;
- case 'F':
- if (!recursive ("%Y-%m-%d"))
- return NULL;
- want_xday = 1;
- break;
- case 'x':
+ if (!recursive (HERE_D_T_FMT))
+ return NULL;
+ want_xday = 1;
+ break;
+ case 'C':
+ /* Match century number. */
+ get_number (0, 99, 2);
+ century = val;
+ want_xday = 1;
+ break;
+ case 'd':
+ case 'e':
+ /* Match day of month. */
+ get_number (1, 31, 2);
+ tm->tm_mday = val;
+ have_mday = 1;
+ want_xday = 1;
+ break;
+ case 'F':
+ if (!recursive ("%Y-%m-%d"))
+ return NULL;
+ want_xday = 1;
+ break;
+ case 'x':
#ifdef _NL_CURRENT
- if (*decided != raw)
- {
- if (!recursive (_NL_CURRENT (LC_TIME, D_FMT)))
- {
- if (*decided == loc)
- return NULL;
- else
- rp = rp_backup;
- }
- else
- {
- if (*decided == not
- && strcmp (_NL_CURRENT (LC_TIME, D_FMT), HERE_D_FMT))
- *decided = loc;
- want_xday = 1;
- break;
- }
- *decided = raw;
- }
+ if (*decided != raw)
+ {
+ if (!recursive (_NL_CURRENT (LC_TIME, D_FMT)))
+ {
+ if (*decided == loc)
+ return NULL;
+ else
+ rp = rp_backup;
+ }
+ else
+ {
+ if (*decided == not
+ && strcmp (_NL_CURRENT (LC_TIME, D_FMT), HERE_D_FMT))
+ *decided = loc;
+ want_xday = 1;
+ break;
+ }
+ *decided = raw;
+ }
#endif
- /* Fall through. */
- case 'D':
- /* Match standard day format. */
- if (!recursive (HERE_D_FMT))
- return NULL;
- want_xday = 1;
- break;
- case 'k':
- case 'H':
- /* Match hour in 24-hour clock. */
- get_number (0, 23, 2);
- tm->tm_hour = val;
- have_I = 0;
- break;
- case 'I':
- /* Match hour in 12-hour clock. */
- get_number (1, 12, 2);
- tm->tm_hour = val % 12;
- have_I = 1;
- break;
- case 'j':
- /* Match day number of year. */
- get_number (1, 366, 3);
- tm->tm_yday = val - 1;
- have_yday = 1;
- break;
- case 'm':
- /* Match number of month. */
- get_number (1, 12, 2);
- tm->tm_mon = val - 1;
- have_mon = 1;
- want_xday = 1;
- break;
- case 'M':
- /* Match minute. */
- get_number (0, 59, 2);
- tm->tm_min = val;
- break;
- case 'n':
- case 't':
- /* Match any white space. */
- while (ISSPACE (*rp))
- ++rp;
- break;
- case 'p':
- /* Match locale's equivalent of AM/PM. */
+ /* Fall through. */
+ case 'D':
+ /* Match standard day format. */
+ if (!recursive (HERE_D_FMT))
+ return NULL;
+ want_xday = 1;
+ break;
+ case 'k':
+ case 'H':
+ /* Match hour in 24-hour clock. */
+ get_number (0, 23, 2);
+ tm->tm_hour = val;
+ have_I = 0;
+ break;
+ case 'I':
+ /* Match hour in 12-hour clock. */
+ get_number (1, 12, 2);
+ tm->tm_hour = val % 12;
+ have_I = 1;
+ break;
+ case 'j':
+ /* Match day number of year. */
+ get_number (1, 366, 3);
+ tm->tm_yday = val - 1;
+ have_yday = 1;
+ break;
+ case 'm':
+ /* Match number of month. */
+ get_number (1, 12, 2);
+ tm->tm_mon = val - 1;
+ have_mon = 1;
+ want_xday = 1;
+ break;
+ case 'M':
+ /* Match minute. */
+ get_number (0, 59, 2);
+ tm->tm_min = val;
+ break;
+ case 'n':
+ case 't':
+ /* Match any white space. */
+ while (c_isspace (*rp))
+ ++rp;
+ break;
+ case 'p':
+ /* Match locale's equivalent of AM/PM. */
#ifdef _NL_CURRENT
- if (*decided != raw)
- {
- if (match_string (_NL_CURRENT (LC_TIME, AM_STR), rp))
- {
- if (strcmp (_NL_CURRENT (LC_TIME, AM_STR), HERE_AM_STR))
- *decided = loc;
- break;
- }
- if (match_string (_NL_CURRENT (LC_TIME, PM_STR), rp))
- {
- if (strcmp (_NL_CURRENT (LC_TIME, PM_STR), HERE_PM_STR))
- *decided = loc;
- is_pm = 1;
- break;
- }
- *decided = raw;
- }
+ if (*decided != raw)
+ {
+ if (match_string (_NL_CURRENT (LC_TIME, AM_STR), rp))
+ {
+ if (strcmp (_NL_CURRENT (LC_TIME, AM_STR), HERE_AM_STR))
+ *decided = loc;
+ break;
+ }
+ if (match_string (_NL_CURRENT (LC_TIME, PM_STR), rp))
+ {
+ if (strcmp (_NL_CURRENT (LC_TIME, PM_STR), HERE_PM_STR))
+ *decided = loc;
+ is_pm = 1;
+ break;
+ }
+ *decided = raw;
+ }
#endif
- if (!match_string (HERE_AM_STR, rp))
- {
- if (match_string (HERE_PM_STR, rp))
- is_pm = 1;
- else
- return NULL;
- }
- break;
- case 'r':
+ if (!match_string (HERE_AM_STR, rp))
+ {
+ if (match_string (HERE_PM_STR, rp))
+ is_pm = 1;
+ else
+ return NULL;
+ }
+ break;
+ case 'r':
#ifdef _NL_CURRENT
- if (*decided != raw)
- {
- if (!recursive (_NL_CURRENT (LC_TIME, T_FMT_AMPM)))
- {
- if (*decided == loc)
- return NULL;
- else
- rp = rp_backup;
- }
- else
- {
- if (*decided == not &&
- strcmp (_NL_CURRENT (LC_TIME, T_FMT_AMPM),
- HERE_T_FMT_AMPM))
- *decided = loc;
- break;
- }
- *decided = raw;
- }
+ if (*decided != raw)
+ {
+ if (!recursive (_NL_CURRENT (LC_TIME, T_FMT_AMPM)))
+ {
+ if (*decided == loc)
+ return NULL;
+ else
+ rp = rp_backup;
+ }
+ else
+ {
+ if (*decided == not &&
+ strcmp (_NL_CURRENT (LC_TIME, T_FMT_AMPM),
+ HERE_T_FMT_AMPM))
+ *decided = loc;
+ break;
+ }
+ *decided = raw;
+ }
#endif
- if (!recursive (HERE_T_FMT_AMPM))
- return NULL;
- break;
- case 'R':
- if (!recursive ("%H:%M"))
- return NULL;
- break;
- case 's':
- {
- /* The number of seconds may be very high so we cannot use
- the `get_number' macro. Instead read the number
- character for character and construct the result while
- doing this. */
- time_t secs = 0;
- if (*rp < '0' || *rp > '9')
- /* We need at least one digit. */
- return NULL;
-
- do
- {
- secs *= 10;
- secs += *rp++ - '0';
- }
- while (*rp >= '0' && *rp <= '9');
-
- if (localtime_r (&secs, tm) == NULL)
- /* Error in function. */
- return NULL;
- }
- break;
- case 'S':
- get_number (0, 61, 2);
- tm->tm_sec = val;
- break;
- case 'X':
+ if (!recursive (HERE_T_FMT_AMPM))
+ return NULL;
+ break;
+ case 'R':
+ if (!recursive ("%H:%M"))
+ return NULL;
+ break;
+ case 's':
+ {
+ /* The number of seconds may be very high so we cannot use
+ the `get_number' macro. Instead read the number
+ character for character and construct the result while
+ doing this. */
+ time_t secs = 0;
+ if (*rp < '0' || *rp > '9')
+ /* We need at least one digit. */
+ return NULL;
+
+ do
+ {
+ secs *= 10;
+ secs += *rp++ - '0';
+ }
+ while (*rp >= '0' && *rp <= '9');
+
+ if (localtime_r (&secs, tm) == NULL)
+ /* Error in function. */
+ return NULL;
+ }
+ break;
+ case 'S':
+ get_number (0, 61, 2);
+ tm->tm_sec = val;
+ break;
+ case 'X':
#ifdef _NL_CURRENT
- if (*decided != raw)
- {
- if (!recursive (_NL_CURRENT (LC_TIME, T_FMT)))
- {
- if (*decided == loc)
- return NULL;
- else
- rp = rp_backup;
- }
- else
- {
- if (strcmp (_NL_CURRENT (LC_TIME, T_FMT), HERE_T_FMT))
- *decided = loc;
- break;
- }
- *decided = raw;
- }
+ if (*decided != raw)
+ {
+ if (!recursive (_NL_CURRENT (LC_TIME, T_FMT)))
+ {
+ if (*decided == loc)
+ return NULL;
+ else
+ rp = rp_backup;
+ }
+ else
+ {
+ if (strcmp (_NL_CURRENT (LC_TIME, T_FMT), HERE_T_FMT))
+ *decided = loc;
+ break;
+ }
+ *decided = raw;
+ }
#endif
- /* Fall through. */
- case 'T':
- if (!recursive (HERE_T_FMT))
- return NULL;
- break;
- case 'u':
- get_number (1, 7, 1);
- tm->tm_wday = val % 7;
- have_wday = 1;
- break;
- case 'g':
- get_number (0, 99, 2);
- /* XXX This cannot determine any field in TM. */
- break;
- case 'G':
- if (*rp < '0' || *rp > '9')
- return NULL;
- /* XXX Ignore the number since we would need some more
- information to compute a real date. */
- do
- ++rp;
- while (*rp >= '0' && *rp <= '9');
- break;
- case 'U':
- case 'V':
- case 'W':
- get_number (0, 53, 2);
- /* XXX This cannot determine any field in TM without some
- information. */
- break;
- case 'w':
- /* Match number of weekday. */
- get_number (0, 6, 1);
- tm->tm_wday = val;
- have_wday = 1;
- break;
- case 'y':
- /* Match year within century. */
- get_number (0, 99, 2);
- /* The "Year 2000: The Millennium Rollover" paper suggests that
- values in the range 69-99 refer to the twentieth century. */
- tm->tm_year = val >= 69 ? val : val + 100;
- /* Indicate that we want to use the century, if specified. */
- want_century = 1;
- want_xday = 1;
- break;
- case 'Y':
- /* Match year including century number. */
- get_number (0, 9999, 4);
- tm->tm_year = val - 1900;
- want_century = 0;
- want_xday = 1;
- break;
- case 'Z':
- /* XXX How to handle this? */
- break;
- case 'E':
+ /* Fall through. */
+ case 'T':
+ if (!recursive (HERE_T_FMT))
+ return NULL;
+ break;
+ case 'u':
+ get_number (1, 7, 1);
+ tm->tm_wday = val % 7;
+ have_wday = 1;
+ break;
+ case 'g':
+ get_number (0, 99, 2);
+ /* XXX This cannot determine any field in TM. */
+ break;
+ case 'G':
+ if (*rp < '0' || *rp > '9')
+ return NULL;
+ /* XXX Ignore the number since we would need some more
+ information to compute a real date. */
+ do
+ ++rp;
+ while (*rp >= '0' && *rp <= '9');
+ break;
+ case 'U':
+ case 'V':
+ case 'W':
+ get_number (0, 53, 2);
+ /* XXX This cannot determine any field in TM without some
+ information. */
+ break;
+ case 'w':
+ /* Match number of weekday. */
+ get_number (0, 6, 1);
+ tm->tm_wday = val;
+ have_wday = 1;
+ break;
+ case 'y':
+ /* Match year within century. */
+ get_number (0, 99, 2);
+ /* The "Year 2000: The Millennium Rollover" paper suggests that
+ values in the range 69-99 refer to the twentieth century. */
+ tm->tm_year = val >= 69 ? val : val + 100;
+ /* Indicate that we want to use the century, if specified. */
+ want_century = 1;
+ want_xday = 1;
+ break;
+ case 'Y':
+ /* Match year including century number. */
+ get_number (0, 9999, 4);
+ tm->tm_year = val - 1900;
+ want_century = 0;
+ want_xday = 1;
+ break;
+ case 'Z':
+ /* XXX How to handle this? */
+ break;
+ case 'E':
#ifdef _NL_CURRENT
- switch (*fmt++)
- {
- case 'c':
- /* Match locale's alternate date and time format. */
- if (*decided != raw)
- {
- const char *fmt = _NL_CURRENT (LC_TIME, ERA_D_T_FMT);
-
- if (*fmt == '\0')
- fmt = _NL_CURRENT (LC_TIME, D_T_FMT);
-
- if (!recursive (fmt))
- {
- if (*decided == loc)
- return NULL;
- else
- rp = rp_backup;
- }
- else
- {
- if (strcmp (fmt, HERE_D_T_FMT))
- *decided = loc;
- want_xday = 1;
- break;
- }
- *decided = raw;
- }
- /* The C locale has no era information, so use the
- normal representation. */
- if (!recursive (HERE_D_T_FMT))
- return NULL;
- want_xday = 1;
- break;
- case 'C':
- case 'y':
- case 'Y':
- /* Match name of base year in locale's alternate
- representation. */
- /* XXX This is currently not implemented. It should
- use the value _NL_CURRENT (LC_TIME, ERA). */
- break;
- case 'x':
- if (*decided != raw)
- {
- const char *fmt = _NL_CURRENT (LC_TIME, ERA_D_FMT);
-
- if (*fmt == '\0')
- fmt = _NL_CURRENT (LC_TIME, D_FMT);
-
- if (!recursive (fmt))
- {
- if (*decided == loc)
- return NULL;
- else
- rp = rp_backup;
- }
- else
- {
- if (strcmp (fmt, HERE_D_FMT))
- *decided = loc;
- break;
- }
- *decided = raw;
- }
- if (!recursive (HERE_D_FMT))
- return NULL;
- break;
- case 'X':
- if (*decided != raw)
- {
- const char *fmt = _NL_CURRENT (LC_TIME, ERA_T_FMT);
-
- if (*fmt == '\0')
- fmt = _NL_CURRENT (LC_TIME, T_FMT);
-
- if (!recursive (fmt))
- {
- if (*decided == loc)
- return NULL;
- else
- rp = rp_backup;
- }
- else
- {
- if (strcmp (fmt, HERE_T_FMT))
- *decided = loc;
- break;
- }
- *decided = raw;
- }
- if (!recursive (HERE_T_FMT))
- return NULL;
- break;
- default:
- return NULL;
- }
- break;
+ switch (*fmt++)
+ {
+ case 'c':
+ /* Match locale's alternate date and time format. */
+ if (*decided != raw)
+ {
+ const char *fmt = _NL_CURRENT (LC_TIME, ERA_D_T_FMT);
+
+ if (*fmt == '\0')
+ fmt = _NL_CURRENT (LC_TIME, D_T_FMT);
+
+ if (!recursive (fmt))
+ {
+ if (*decided == loc)
+ return NULL;
+ else
+ rp = rp_backup;
+ }
+ else
+ {
+ if (strcmp (fmt, HERE_D_T_FMT))
+ *decided = loc;
+ want_xday = 1;
+ break;
+ }
+ *decided = raw;
+ }
+ /* The C locale has no era information, so use the
+ normal representation. */
+ if (!recursive (HERE_D_T_FMT))
+ return NULL;
+ want_xday = 1;
+ break;
+ case 'C':
+ case 'y':
+ case 'Y':
+ /* Match name of base year in locale's alternate
+ representation. */
+ /* XXX This is currently not implemented. It should
+ use the value _NL_CURRENT (LC_TIME, ERA). */
+ break;
+ case 'x':
+ if (*decided != raw)
+ {
+ const char *fmt = _NL_CURRENT (LC_TIME, ERA_D_FMT);
+
+ if (*fmt == '\0')
+ fmt = _NL_CURRENT (LC_TIME, D_FMT);
+
+ if (!recursive (fmt))
+ {
+ if (*decided == loc)
+ return NULL;
+ else
+ rp = rp_backup;
+ }
+ else
+ {
+ if (strcmp (fmt, HERE_D_FMT))
+ *decided = loc;
+ break;
+ }
+ *decided = raw;
+ }
+ if (!recursive (HERE_D_FMT))
+ return NULL;
+ break;
+ case 'X':
+ if (*decided != raw)
+ {
+ const char *fmt = _NL_CURRENT (LC_TIME, ERA_T_FMT);
+
+ if (*fmt == '\0')
+ fmt = _NL_CURRENT (LC_TIME, T_FMT);
+
+ if (!recursive (fmt))
+ {
+ if (*decided == loc)
+ return NULL;
+ else
+ rp = rp_backup;
+ }
+ else
+ {
+ if (strcmp (fmt, HERE_T_FMT))
+ *decided = loc;
+ break;
+ }
+ *decided = raw;
+ }
+ if (!recursive (HERE_T_FMT))
+ return NULL;
+ break;
+ default:
+ return NULL;
+ }
+ break;
#else
- /* We have no information about the era format. Just use
- the normal format. */
- if (*fmt != 'c' && *fmt != 'C' && *fmt != 'y' && *fmt != 'Y'
- && *fmt != 'x' && *fmt != 'X')
- /* This is an illegal format. */
- return NULL;
-
- goto start_over;
+ /* We have no information about the era format. Just use
+ the normal format. */
+ if (*fmt != 'c' && *fmt != 'C' && *fmt != 'y' && *fmt != 'Y'
+ && *fmt != 'x' && *fmt != 'X')
+ /* This is an illegal format. */
+ return NULL;
+
+ goto start_over;
#endif
- case 'O':
- switch (*fmt++)
- {
- case 'd':
- case 'e':
- /* Match day of month using alternate numeric symbols. */
- get_alt_number (1, 31, 2);
- tm->tm_mday = val;
- have_mday = 1;
- want_xday = 1;
- break;
- case 'H':
- /* Match hour in 24-hour clock using alternate numeric
- symbols. */
- get_alt_number (0, 23, 2);
- tm->tm_hour = val;
- have_I = 0;
- break;
- case 'I':
- /* Match hour in 12-hour clock using alternate numeric
- symbols. */
- get_alt_number (1, 12, 2);
- tm->tm_hour = val - 1;
- have_I = 1;
- break;
- case 'm':
- /* Match month using alternate numeric symbols. */
- get_alt_number (1, 12, 2);
- tm->tm_mon = val - 1;
- have_mon = 1;
- want_xday = 1;
- break;
- case 'M':
- /* Match minutes using alternate numeric symbols. */
- get_alt_number (0, 59, 2);
- tm->tm_min = val;
- break;
- case 'S':
- /* Match seconds using alternate numeric symbols. */
- get_alt_number (0, 61, 2);
- tm->tm_sec = val;
- break;
- case 'U':
- case 'V':
- case 'W':
- get_alt_number (0, 53, 2);
- /* XXX This cannot determine any field in TM without
- further information. */
- break;
- case 'w':
- /* Match number of weekday using alternate numeric symbols. */
- get_alt_number (0, 6, 1);
- tm->tm_wday = val;
- have_wday = 1;
- break;
- case 'y':
- /* Match year within century using alternate numeric symbols. */
- get_alt_number (0, 99, 2);
- tm->tm_year = val >= 69 ? val : val + 100;
- want_xday = 1;
- break;
- default:
- return NULL;
- }
- break;
- default:
- return NULL;
- }
+ case 'O':
+ switch (*fmt++)
+ {
+ case 'd':
+ case 'e':
+ /* Match day of month using alternate numeric symbols. */
+ get_alt_number (1, 31, 2);
+ tm->tm_mday = val;
+ have_mday = 1;
+ want_xday = 1;
+ break;
+ case 'H':
+ /* Match hour in 24-hour clock using alternate numeric
+ symbols. */
+ get_alt_number (0, 23, 2);
+ tm->tm_hour = val;
+ have_I = 0;
+ break;
+ case 'I':
+ /* Match hour in 12-hour clock using alternate numeric
+ symbols. */
+ get_alt_number (1, 12, 2);
+ tm->tm_hour = val - 1;
+ have_I = 1;
+ break;
+ case 'm':
+ /* Match month using alternate numeric symbols. */
+ get_alt_number (1, 12, 2);
+ tm->tm_mon = val - 1;
+ have_mon = 1;
+ want_xday = 1;
+ break;
+ case 'M':
+ /* Match minutes using alternate numeric symbols. */
+ get_alt_number (0, 59, 2);
+ tm->tm_min = val;
+ break;
+ case 'S':
+ /* Match seconds using alternate numeric symbols. */
+ get_alt_number (0, 61, 2);
+ tm->tm_sec = val;
+ break;
+ case 'U':
+ case 'V':
+ case 'W':
+ get_alt_number (0, 53, 2);
+ /* XXX This cannot determine any field in TM without
+ further information. */
+ break;
+ case 'w':
+ /* Match number of weekday using alternate numeric symbols. */
+ get_alt_number (0, 6, 1);
+ tm->tm_wday = val;
+ have_wday = 1;
+ break;
+ case 'y':
+ /* Match year within century using alternate numeric symbols. */
+ get_alt_number (0, 99, 2);
+ tm->tm_year = val >= 69 ? val : val + 100;
+ want_xday = 1;
+ break;
+ default:
+ return NULL;
+ }
+ break;
+ default:
+ return NULL;
+ }
}
if (have_I && is_pm)
if (century != -1)
{
if (want_century)
- tm->tm_year = tm->tm_year % 100 + (century - 19) * 100;
+ tm->tm_year = tm->tm_year % 100 + (century - 19) * 100;
else
- /* Only the century, but not the year. Strange, but so be it. */
- tm->tm_year = (century - 19) * 100;
+ /* Only the century, but not the year. Strange, but so be it. */
+ tm->tm_year = (century - 19) * 100;
}
if (want_xday && !have_wday) {
if ( !(have_mon && have_mday) && have_yday) {
- /* we don't have tm_mon and/or tm_mday, compute them */
- int t_mon = 0;
- while (__mon_yday[__isleap(1900 + tm->tm_year)][t_mon] <= tm->tm_yday)
- t_mon++;
- if (!have_mon)
- tm->tm_mon = t_mon - 1;
- if (!have_mday)
- tm->tm_mday = tm->tm_yday - __mon_yday[__isleap(1900 + tm->tm_year)][t_mon - 1] + 1;
+ /* we don't have tm_mon and/or tm_mday, compute them */
+ int t_mon = 0;
+ while (__mon_yday[__isleap(1900 + tm->tm_year)][t_mon] <= tm->tm_yday)
+ t_mon++;
+ if (!have_mon)
+ tm->tm_mon = t_mon - 1;
+ if (!have_mday)
+ tm->tm_mday = tm->tm_yday - __mon_yday[__isleap(1900 + tm->tm_year)][t_mon - 1] + 1;
}
day_of_the_week (tm);
}
#ifndef SYSTEM_FNMATCH
-#define __FNM_FLAGS (FNM_PATHNAME | FNM_NOESCAPE | FNM_PERIOD)
+#define __FNM_FLAGS (FNM_PATHNAME | FNM_NOESCAPE | FNM_PERIOD)
/* Match STRING against the filename pattern PATTERN, returning zero
if it matches, FNM_NOMATCH if not. This implementation comes from
while ((c = *p++) != '\0')
{
switch (c)
- {
- case '?':
- if (*n == '\0')
- return (FNM_NOMATCH);
- else if ((flags & FNM_PATHNAME) && *n == '/')
- return (FNM_NOMATCH);
- else if ((flags & FNM_PERIOD) && *n == '.' &&
- (n == string || ((flags & FNM_PATHNAME) && n[-1] == '/')))
- return (FNM_NOMATCH);
- break;
-
- case '\\':
- if (!(flags & FNM_NOESCAPE))
- c = *p++;
- if (*n != c)
- return (FNM_NOMATCH);
- break;
-
- case '*':
- if ((flags & FNM_PERIOD) && *n == '.' &&
- (n == string || ((flags & FNM_PATHNAME) && n[-1] == '/')))
- return (FNM_NOMATCH);
-
- for (c = *p++; c == '?' || c == '*'; c = *p++, ++n)
- if (((flags & FNM_PATHNAME) && *n == '/') ||
- (c == '?' && *n == '\0'))
- return (FNM_NOMATCH);
-
- if (c == '\0')
- return (0);
-
- {
- char c1 = (!(flags & FNM_NOESCAPE) && c == '\\') ? *p : c;
- for (--p; *n != '\0'; ++n)
- if ((c == '[' || *n == c1) &&
- fnmatch (p, n, flags & ~FNM_PERIOD) == 0)
- return (0);
- return (FNM_NOMATCH);
- }
-
- case '[':
- {
- /* Nonzero if the sense of the character class is
- inverted. */
- register int not;
-
- if (*n == '\0')
- return (FNM_NOMATCH);
-
- if ((flags & FNM_PERIOD) && *n == '.' &&
- (n == string || ((flags & FNM_PATHNAME) && n[-1] == '/')))
- return (FNM_NOMATCH);
-
- /* Make sure there is a closing `]'. If there isn't,
- the `[' is just a character to be matched. */
- {
- register const char *np;
-
- for (np = p; np && *np && *np != ']'; np++)
- ;
-
- if (np && !*np)
- {
- if (*n != '[')
- return (FNM_NOMATCH);
- goto next_char;
- }
- }
-
- not = (*p == '!' || *p == '^');
- if (not)
- ++p;
-
- c = *p++;
- while (1)
- {
- register char cstart = c, cend = c;
-
- if (!(flags & FNM_NOESCAPE) && c == '\\')
- cstart = cend = *p++;
-
- if (c == '\0')
- /* [ (unterminated) loses. */
- return (FNM_NOMATCH);
-
- c = *p++;
-
- if ((flags & FNM_PATHNAME) && c == '/')
- /* [/] can never match. */
- return (FNM_NOMATCH);
-
- if (c == '-' && *p != ']')
- {
- cend = *p++;
- if (!(flags & FNM_NOESCAPE) && cend == '\\')
- cend = *p++;
- if (cend == '\0')
- return (FNM_NOMATCH);
- c = *p++;
- }
-
- if (*n >= cstart && *n <= cend)
- goto matched;
-
- if (c == ']')
- break;
- }
- if (!not)
- return (FNM_NOMATCH);
-
- next_char:
- break;
-
- matched:
- /* Skip the rest of the [...] that already matched. */
- while (c != ']')
- {
- if (c == '\0')
- /* [... (unterminated) loses. */
- return (FNM_NOMATCH);
-
- c = *p++;
- if (!(flags & FNM_NOESCAPE) && c == '\\')
- /* 1003.2d11 is unclear if this is right. %%% */
- ++p;
- }
- if (not)
- return (FNM_NOMATCH);
- }
- break;
-
- default:
- if (c != *n)
- return (FNM_NOMATCH);
- }
+ {
+ case '?':
+ if (*n == '\0')
+ return (FNM_NOMATCH);
+ else if ((flags & FNM_PATHNAME) && *n == '/')
+ return (FNM_NOMATCH);
+ else if ((flags & FNM_PERIOD) && *n == '.' &&
+ (n == string || ((flags & FNM_PATHNAME) && n[-1] == '/')))
+ return (FNM_NOMATCH);
+ break;
+
+ case '\\':
+ if (!(flags & FNM_NOESCAPE))
+ c = *p++;
+ if (*n != c)
+ return (FNM_NOMATCH);
+ break;
+
+ case '*':
+ if ((flags & FNM_PERIOD) && *n == '.' &&
+ (n == string || ((flags & FNM_PATHNAME) && n[-1] == '/')))
+ return (FNM_NOMATCH);
+
+ for (c = *p++; c == '?' || c == '*'; c = *p++, ++n)
+ if (((flags & FNM_PATHNAME) && *n == '/') ||
+ (c == '?' && *n == '\0'))
+ return (FNM_NOMATCH);
+
+ if (c == '\0')
+ return (0);
+
+ {
+ char c1 = (!(flags & FNM_NOESCAPE) && c == '\\') ? *p : c;
+ for (--p; *n != '\0'; ++n)
+ if ((c == '[' || *n == c1) &&
+ fnmatch (p, n, flags & ~FNM_PERIOD) == 0)
+ return (0);
+ return (FNM_NOMATCH);
+ }
+
+ case '[':
+ {
+ /* Nonzero if the sense of the character class is
+ inverted. */
+ register int not;
+
+ if (*n == '\0')
+ return (FNM_NOMATCH);
+
+ if ((flags & FNM_PERIOD) && *n == '.' &&
+ (n == string || ((flags & FNM_PATHNAME) && n[-1] == '/')))
+ return (FNM_NOMATCH);
+
+ /* Make sure there is a closing `]'. If there isn't,
+ the `[' is just a character to be matched. */
+ {
+ register const char *np;
+
+ for (np = p; np && *np && *np != ']'; np++)
+ ;
+
+ if (np && !*np)
+ {
+ if (*n != '[')
+ return (FNM_NOMATCH);
+ goto next_char;
+ }
+ }
+
+ not = (*p == '!' || *p == '^');
+ if (not)
+ ++p;
+
+ c = *p++;
+ while (1)
+ {
+ register char cstart = c, cend = c;
+
+ if (!(flags & FNM_NOESCAPE) && c == '\\')
+ cstart = cend = *p++;
+
+ if (c == '\0')
+ /* [ (unterminated) loses. */
+ return (FNM_NOMATCH);
+
+ c = *p++;
+
+ if ((flags & FNM_PATHNAME) && c == '/')
+ /* [/] can never match. */
+ return (FNM_NOMATCH);
+
+ if (c == '-' && *p != ']')
+ {
+ cend = *p++;
+ if (!(flags & FNM_NOESCAPE) && cend == '\\')
+ cend = *p++;
+ if (cend == '\0')
+ return (FNM_NOMATCH);
+ c = *p++;
+ }
+
+ if (*n >= cstart && *n <= cend)
+ goto matched;
+
+ if (c == ']')
+ break;
+ }
+ if (!not)
+ return (FNM_NOMATCH);
+
+ next_char:
+ break;
+
+ matched:
+ /* Skip the rest of the [...] that already matched. */
+ while (c != ']')
+ {
+ if (c == '\0')
+ /* [... (unterminated) loses. */
+ return (FNM_NOMATCH);
+
+ c = *p++;
+ if (!(flags & FNM_NOESCAPE) && c == '\\')
+ /* 1003.2d11 is unclear if this is right. %%% */
+ ++p;
+ }
+ if (not)
+ return (FNM_NOMATCH);
+ }
+ break;
+
+ default:
+ if (c != *n)
+ return (FNM_NOMATCH);
+ }
++n;
}
systems and possibly elsewhere. */
/* True if YEAR is a leap year. */
-#define ISLEAP(year) \
+#define ISLEAP(year) \
((year) % 4 == 0 && ((year) % 100 != 0 || (year) % 400 == 0))
/* Number of leap years in the range [y1, y2). */
-#define LEAPYEARS(y1, y2) \
+#define LEAPYEARS(y1, y2) \
((y2-1)/4 - (y1-1)/4) - ((y2-1)/100 - (y1-1)/100) + ((y2-1)/400 - (y1-1)/400)
/* Inverse of gmtime: converts struct tm to time_t, assuming the data
return value;
}
-#define LL strtoll_type /* long long or __int64 */
+#define STRTOLL_MAX TYPE_MAXIMUM (strtoll_type)
+/* This definition assumes two's complement arithmetic */
+#define STRTOLL_MIN (-STRTOLL_MAX - 1)
-/* These constants assume 64-bit strtoll_type. */
+/* Like a%b, but always returns a positive number when A is negative.
+ (C doesn't guarantee the sign of the result.) */
+#define MOD(a, b) ((strtoll_type) -1 % 2 == 1 ? (a) % (b) : - ((a) % (b)))
-/* A roundabout way of writing 2**63-1 = 9223372036854775807 */
-#define STRTOLL_OVERFLOW (((LL) 1 << 62) - 1 + ((LL) 1 << 62))
-/* A roundabout way of writing -2**63 = -9223372036854775808 */
-#define STRTOLL_UNDERFLOW (-STRTOLL_OVERFLOW - 1)
-
-/* A strtoll replacement for systems that have LFS but don't supply
- strtoll. The headers typedef strtoll_type to long long or to
- __int64. */
+/* A strtoll-like replacement for systems that have an integral type
+ larger than long but don't supply strtoll. This implementation
+ makes no assumptions about the size of strtoll_type. */
strtoll_type
strtoll (const char *nptr, char **endptr, int base)
else
negative = false;
- /* If base is 0, determine the real base based on the beginning on
+ /* If BASE is 0, determine the real base based on the beginning on
the number; octal numbers begin with "0", hexadecimal with "0x",
and the others are considered octal. */
if (*nptr == '0')
{
if ((base == 0 || base == 16)
- &&
- (*(nptr + 1) == 'x' || *(nptr + 1) == 'X'))
- {
- base = 16;
- nptr += 2;
- /* "0x" must be followed by at least one hex char. If not,
- return 0 and place ENDPTR on 'x'. */
- if (!ISXDIGIT (*nptr))
- {
- --nptr;
- goto out;
- }
- }
+ &&
+ (*(nptr + 1) == 'x' || *(nptr + 1) == 'X'))
+ {
+ base = 16;
+ nptr += 2;
+ /* "0x" must be followed by at least one hex char. If not,
+ return 0 and place ENDPTR on 'x'. */
+ if (!c_isxdigit (*nptr))
+ {
+ --nptr;
+ goto out;
+ }
+ }
else if (base == 0)
- base = 8;
+ base = 8;
}
else if (base == 0)
base = 10;
if (!negative)
{
/* Parse positive number, checking for overflow. */
- int val;
- for (; (val = char_value (*nptr, base)) != -1; ++nptr)
- {
- strtoll_type newresult = base * result + val;
- if (newresult < result)
- {
- result = STRTOLL_OVERFLOW;
- errno = ERANGE;
- break;
- }
- result = newresult;
- }
+ int digit;
+ /* Overflow watermark. If RESULT exceeds it, overflow occurs on
+ this digit. If result==WATERMARK, current digit may not
+ exceed the last digit of maximum value. */
+ const strtoll_type WATERMARK = STRTOLL_MAX / base;
+ for (; (digit = char_value (*nptr, base)) != -1; ++nptr)
+ {
+ if (result > WATERMARK
+ || (result == WATERMARK && digit > STRTOLL_MAX % base))
+ {
+ result = STRTOLL_MAX;
+ errno = ERANGE;
+ break;
+ }
+ result = base * result + digit;
+ }
}
else
{
/* Parse negative number, checking for underflow. */
- int val;
- for (; (val = char_value (*nptr, base)) != -1; ++nptr)
- {
- strtoll_type newresult = base * result - val;
- if (newresult > result)
- {
- result = STRTOLL_UNDERFLOW;
- errno = ERANGE;
- break;
- }
- result = newresult;
- }
+ int digit;
+ const strtoll_type WATERMARK = STRTOLL_MIN / base;
+ for (; (digit = char_value (*nptr, base)) != -1; ++nptr)
+ {
+ if (result < WATERMARK
+ || (result == WATERMARK && digit > MOD (STRTOLL_MIN, base)))
+ {
+ result = STRTOLL_MIN;
+ errno = ERANGE;
+ break;
+ }
+ result = base * result - digit;
+ }
}
out:
if (endptr)
*endptr = (char *) nptr;
return result;
}
-#endif /* NEED_STRTOLL */
+
+#undef STRTOLL_MAX
+#undef STRTOLL_MIN
+#undef ABS
+
+#endif /* NEED_STRTOLL */
projects / wget / blobdiff