mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-17 10:30:20 +00:00
update from main archive 961215
Mon Dec 16 02:15:42 1996 Ulrich Drepper <drepper@cygnus.com> Make sure tzset() sets always tzname[]. * time/tzfile.c: De-ANSI-declfy. (find_transition): New function. Set tzname according to given time. (__tzread_file): Use find_transition to set tzname. (__tzfile_compute): Use find_transition instead of doing the work self. * time/tzset.c (tzset): Set tzname[] directly only if !__use_tzfile. Sun Dec 15 16:52:34 1996 Ulrich Drepper <drepper@cygnus.com> * login/utmp-file.c (pututline_file): Open file if closed. Reported by Roma Ekzhanov <ekzhanov@paragraph.com>. Use fcntl instead of flock. Sun Dec 15 14:20:51 1996 Ulrich Drepper <drepper@cygnus.com> * manual/time.texi: Update documentation of strftime function.
This commit is contained in:
Ulrich Drepper
parent
68dbb3a69e
commit
860d372986
20
ChangeLog
20
ChangeLog
@ -1,3 +1,23 @@
|
||||
Mon Dec 16 02:15:42 1996 Ulrich Drepper <drepper@cygnus.com>
|
||||
|
||||
Make sure tzset() sets always tzname[].
|
||||
* time/tzfile.c: De-ANSI-declfy.
|
||||
(find_transition): New function. Set tzname according to given time.
|
||||
(__tzread_file): Use find_transition to set tzname.
|
||||
(__tzfile_compute): Use find_transition instead of doing the work
|
||||
self.
|
||||
* time/tzset.c (tzset): Set tzname[] directly only if !__use_tzfile.
|
||||
|
||||
Sun Dec 15 16:52:34 1996 Ulrich Drepper <drepper@cygnus.com>
|
||||
|
||||
* login/utmp-file.c (pututline_file): Open file if closed.
|
||||
Reported by Roma Ekzhanov <ekzhanov@paragraph.com>.
|
||||
Use fcntl instead of flock.
|
||||
|
||||
Sun Dec 15 14:20:51 1996 Ulrich Drepper <drepper@cygnus.com>
|
||||
|
||||
* manual/time.texi: Update documentation of strftime function.
|
||||
|
||||
Sun Dec 15 01:53:20 1996 Ulrich Drepper <drepper@cygnus.com>
|
||||
|
||||
* Makefile (subdirs): Change crypt to md5-crypt.
|
||||
|
||||
@ -140,14 +140,14 @@ getutent_r_file (struct utmp *buffer, struct utmp **result)
|
||||
memset (&fl, '\0', sizeof (struct flock));
|
||||
fl.l_type = F_WRLCK;
|
||||
fl.l_whence = SEEK_SET;
|
||||
result = fcntl (file_fd, F_SETLKW, &fl);
|
||||
fcntl (file_fd, F_SETLKW, &fl);
|
||||
|
||||
/* Read the next entry. */
|
||||
nbytes = read (file_fd, &last_entry, sizeof (struct utmp));
|
||||
|
||||
/* And unlock the file. */
|
||||
fl.l_type = F_UNLCK;
|
||||
result = fcntl (file_fd, F_SETLKW, &fl);
|
||||
fcntl (file_fd, F_SETLKW, &fl);
|
||||
|
||||
if (nbytes != sizeof (struct utmp))
|
||||
{
|
||||
@ -292,6 +292,7 @@ getutid_r_file (const struct utmp *id, struct utmp *buffer,
|
||||
static struct utmp *
|
||||
pututline_file (const struct utmp *data)
|
||||
{
|
||||
struct flock fl; /* Information struct for locking. */
|
||||
struct utmp buffer;
|
||||
struct utmp *pbuf;
|
||||
int found;
|
||||
@ -300,6 +301,10 @@ pututline_file (const struct utmp *data)
|
||||
/* Something went wrong. */
|
||||
return NULL;
|
||||
|
||||
if (file_fd == INT_MIN)
|
||||
/* The file is closed. Open it again. */
|
||||
setutent_file (0);
|
||||
|
||||
/* Find the correct place to insert the data. */
|
||||
if (file_offset > 0)
|
||||
found = 0;
|
||||
@ -318,14 +323,10 @@ pututline_file (const struct utmp *data)
|
||||
found = internal_getutid_r (data, &buffer);
|
||||
|
||||
/* Try to lock the file. */
|
||||
if (flock (file_fd, LOCK_EX | LOCK_NB) < 0 && errno != ENOSYS)
|
||||
{
|
||||
/* Oh, oh. The file is already locked. Wait a bit and try again. */
|
||||
sleep (1);
|
||||
|
||||
/* This time we ignore the error. */
|
||||
(void) flock (file_fd, LOCK_EX | LOCK_NB);
|
||||
}
|
||||
memset (&fl, '\0', sizeof (struct flock));
|
||||
fl.l_type = F_WRLCK;
|
||||
fl.l_whence = SEEK_SET;
|
||||
fcntl (file_fd, F_SETLKW, &fl);
|
||||
|
||||
if (found < 0)
|
||||
{
|
||||
@ -338,8 +339,8 @@ pututline_file (const struct utmp *data)
|
||||
|
||||
if (lseek (file_fd, 0, SEEK_END) < 0)
|
||||
{
|
||||
(void) flock (file_fd, LOCK_UN);
|
||||
return NULL;
|
||||
pbuf = NULL;
|
||||
goto unlock_return;
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -365,8 +366,10 @@ pututline_file (const struct utmp *data)
|
||||
pbuf = (struct utmp *) data;
|
||||
}
|
||||
|
||||
unlock_return:
|
||||
/* And unlock the file. */
|
||||
(void) flock (file_fd, LOCK_UN);
|
||||
fl.l_type = F_UNLCK;
|
||||
fcntl (file_fd, F_SETLKW, &fl);
|
||||
|
||||
return pbuf;
|
||||
}
|
||||
|
||||
@ -638,14 +638,24 @@ The number is padded with spaces.
|
||||
|
||||
@item -
|
||||
The number is not padded at all.
|
||||
|
||||
@item 0
|
||||
The number is padded with zeros even if the format spefies padding
|
||||
with spaces.
|
||||
@end table
|
||||
|
||||
The default action is to pad the number with zeros to keep it a constant
|
||||
width. Numbers that do not have a range indicated below are never
|
||||
padded, since there is no natural width for them.
|
||||
|
||||
An optional modifier can follow the optional flag. The modifiers, which
|
||||
are POSIX.2 extensions, are:
|
||||
Following the flag an optional specification of the width is possible.
|
||||
This is specified in decimal notation. If the natural size of the
|
||||
output is of the field has less than the specifed number of character,
|
||||
the result is written right adjusted and space padded to the given
|
||||
size.
|
||||
|
||||
An optional modifier can follow the optional flag and width
|
||||
specification. The modifiers, which are POSIX.2 extensions, are:
|
||||
|
||||
@table @code
|
||||
@item E
|
||||
@ -660,7 +670,8 @@ Use the locale's alternate numeric symbols for numbers. This modifier
|
||||
applies only to numeric format specifiers.
|
||||
@end table
|
||||
|
||||
A modifier is ignored if no alternate representation is available.
|
||||
If the format supports the modifier but no alternate representation
|
||||
is available, it is ignored.
|
||||
|
||||
The conversion specifier ends with a format specifier taken from the
|
||||
following list. The whole @samp{%} sequence is replaced in the output
|
||||
@ -868,6 +879,10 @@ repeat the call, providing a bigger array.
|
||||
If @var{s} is a null pointer, @code{strftime} does not actually write
|
||||
anything, but instead returns the number of characters it would have written.
|
||||
|
||||
According to POSIX.1 every call to @code{strftime} implies a call to
|
||||
@code{tzset}. So the contents of the environment variable @code{TZ}
|
||||
is examined before any output is produced.
|
||||
|
||||
For an example of @code{strftime}, see @ref{Time Functions Example}.
|
||||
@end deftypefun
|
||||
|
||||
|
||||
113
time/tzfile.c
113
time/tzfile.c
@ -1,22 +1,21 @@
|
||||
/* Copyright (C) 1991, 92, 93, 95, 96 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Library General Public License as
|
||||
published by the Free Software Foundation; either version 2 of the
|
||||
License, or (at your option) any later version.
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Library General Public License as
|
||||
published by the Free Software Foundation; either version 2 of the
|
||||
License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library 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
|
||||
Library General Public License for more details.
|
||||
The GNU C Library 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
|
||||
Library General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Library General Public
|
||||
License along with the GNU C Library; see the file COPYING.LIB. If
|
||||
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
|
||||
Cambridge, MA 02139, USA. */
|
||||
You should have received a copy of the GNU Library General Public
|
||||
License along with the GNU C Library; see the file COPYING.LIB. If not,
|
||||
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
||||
Boston, MA 02111-1307, USA. */
|
||||
|
||||
#include <ansidecl.h>
|
||||
#include <stdlib.h>
|
||||
#include <stdio.h>
|
||||
#include <time.h>
|
||||
@ -43,7 +42,8 @@ struct leap
|
||||
long int change; /* Seconds of correction to apply. */
|
||||
};
|
||||
|
||||
static void compute_tzname_max __P ((size_t));
|
||||
static struct ttinfo *find_transition (time_t timer);
|
||||
static void compute_tzname_max (size_t);
|
||||
|
||||
static size_t num_transitions;
|
||||
static time_t *transitions = NULL;
|
||||
@ -77,30 +77,31 @@ decode (const void *ptr)
|
||||
}
|
||||
|
||||
void
|
||||
DEFUN(__tzfile_read, (file), CONST char *file)
|
||||
__tzfile_read (const char *file)
|
||||
{
|
||||
size_t num_isstd, num_isgmt;
|
||||
register FILE *f;
|
||||
struct tzhead tzhead;
|
||||
size_t chars;
|
||||
register size_t i;
|
||||
struct ttinfo *info;
|
||||
|
||||
__use_tzfile = 0;
|
||||
|
||||
if (transitions != NULL)
|
||||
free((PTR) transitions);
|
||||
free ((void *) transitions);
|
||||
transitions = NULL;
|
||||
if (type_idxs != NULL)
|
||||
free((PTR) type_idxs);
|
||||
free ((void *) type_idxs);
|
||||
type_idxs = NULL;
|
||||
if (types != NULL)
|
||||
free((PTR) types);
|
||||
free ((void *) types);
|
||||
types = NULL;
|
||||
if (zone_names != NULL)
|
||||
free((PTR) zone_names);
|
||||
free ((void *) zone_names);
|
||||
zone_names = NULL;
|
||||
if (leaps != NULL)
|
||||
free((PTR) leaps);
|
||||
free ((void *) leaps);
|
||||
leaps = NULL;
|
||||
|
||||
if (file == NULL)
|
||||
@ -112,12 +113,12 @@ DEFUN(__tzfile_read, (file), CONST char *file)
|
||||
|
||||
if (*file != '/')
|
||||
{
|
||||
static CONST char tzdir[] = TZDIR;
|
||||
register CONST unsigned int len = strlen(file) + 1;
|
||||
char *new = (char *) __alloca(sizeof(tzdir) + len);
|
||||
memcpy(new, tzdir, sizeof(tzdir) - 1);
|
||||
new[sizeof(tzdir) - 1] = '/';
|
||||
memcpy(&new[sizeof(tzdir)], file, len);
|
||||
static const char tzdir[] = TZDIR;
|
||||
register const unsigned int len = strlen (file) + 1;
|
||||
char *new = (char *) __alloca (sizeof (tzdir) + len);
|
||||
memcpy (new, tzdir, sizeof(tzdir) - 1);
|
||||
new[sizeof (tzdir) - 1] = '/';
|
||||
memcpy (&new[sizeof (tzdir)], file, len);
|
||||
file = new;
|
||||
}
|
||||
|
||||
@ -125,7 +126,7 @@ DEFUN(__tzfile_read, (file), CONST char *file)
|
||||
if (f == NULL)
|
||||
return;
|
||||
|
||||
if (fread((PTR) &tzhead, sizeof(tzhead), 1, f) != 1)
|
||||
if (fread ((void *) &tzhead, sizeof (tzhead), 1, f) != 1)
|
||||
goto lose;
|
||||
|
||||
num_transitions = (size_t) decode (tzhead.tzh_timecnt);
|
||||
@ -166,8 +167,8 @@ DEFUN(__tzfile_read, (file), CONST char *file)
|
||||
if (sizeof (time_t) < 4)
|
||||
abort ();
|
||||
|
||||
if (fread((PTR) transitions, 4, num_transitions, f) != num_transitions ||
|
||||
fread((PTR) type_idxs, 1, num_transitions, f) != num_transitions)
|
||||
if (fread(transitions, 4, num_transitions, f) != num_transitions ||
|
||||
fread(type_idxs, 1, num_transitions, f) != num_transitions)
|
||||
goto lose;
|
||||
|
||||
if (BYTE_ORDER != BIG_ENDIAN || sizeof (time_t) != 4)
|
||||
@ -184,30 +185,30 @@ DEFUN(__tzfile_read, (file), CONST char *file)
|
||||
for (i = 0; i < num_types; ++i)
|
||||
{
|
||||
unsigned char x[4];
|
||||
if (fread((PTR) x, 1, 4, f) != 4 ||
|
||||
fread((PTR) &types[i].isdst, 1, 1, f) != 1 ||
|
||||
fread((PTR) &types[i].idx, 1, 1, f) != 1)
|
||||
if (fread (x, 1, 4, f) != 4 ||
|
||||
fread (&types[i].isdst, 1, 1, f) != 1 ||
|
||||
fread (&types[i].idx, 1, 1, f) != 1)
|
||||
goto lose;
|
||||
types[i].offset = (long int) decode (x);
|
||||
}
|
||||
|
||||
if (fread((PTR) zone_names, 1, chars, f) != chars)
|
||||
if (fread (zone_names, 1, chars, f) != chars)
|
||||
goto lose;
|
||||
|
||||
for (i = 0; i < num_leaps; ++i)
|
||||
{
|
||||
unsigned char x[4];
|
||||
if (fread((PTR) x, 1, sizeof(x), f) != sizeof(x))
|
||||
if (fread (x, 1, sizeof (x), f) != sizeof (x))
|
||||
goto lose;
|
||||
leaps[i].transition = (time_t) decode (x);
|
||||
if (fread((PTR) x, 1, sizeof(x), f) != sizeof(x))
|
||||
if (fread (x, 1, sizeof (x), f) != sizeof (x))
|
||||
goto lose;
|
||||
leaps[i].change = (long int) decode (x);
|
||||
}
|
||||
|
||||
for (i = 0; i < num_isstd; ++i)
|
||||
{
|
||||
char c = getc(f);
|
||||
char c = getc (f);
|
||||
if (c == EOF)
|
||||
goto lose;
|
||||
types[i].isstd = c != 0;
|
||||
@ -217,7 +218,7 @@ DEFUN(__tzfile_read, (file), CONST char *file)
|
||||
|
||||
for (i = 0; i < num_isgmt; ++i)
|
||||
{
|
||||
char c = getc(f);
|
||||
char c = getc (f);
|
||||
if (c == EOF)
|
||||
goto lose;
|
||||
types[i].isgmt = c != 0;
|
||||
@ -225,7 +226,14 @@ DEFUN(__tzfile_read, (file), CONST char *file)
|
||||
while (i < num_types)
|
||||
types[i++].isgmt = 0;
|
||||
|
||||
(void) fclose(f);
|
||||
fclose (f);
|
||||
|
||||
info = find_transition (0);
|
||||
for (i = 0; i < num_types && i < sizeof (__tzname) / sizeof (__tzname[0]);
|
||||
++i)
|
||||
__tzname[types[i].isdst] = &zone_names[types[i].idx];
|
||||
if (info->isdst < sizeof (__tzname) / sizeof (__tzname[0]))
|
||||
__tzname[info->isdst] = &zone_names[info->idx];
|
||||
|
||||
compute_tzname_max (chars);
|
||||
|
||||
@ -233,7 +241,7 @@ DEFUN(__tzfile_read, (file), CONST char *file)
|
||||
return;
|
||||
|
||||
lose:;
|
||||
(void) fclose(f);
|
||||
fclose(f);
|
||||
}
|
||||
|
||||
/* The user specified a hand-made timezone, but not its DST rules.
|
||||
@ -241,9 +249,7 @@ DEFUN(__tzfile_read, (file), CONST char *file)
|
||||
from the TZDEFRULES file. */
|
||||
|
||||
void
|
||||
DEFUN(__tzfile_default, (std, dst, stdoff, dstoff),
|
||||
char *std AND char *dst AND
|
||||
long int stdoff AND long int dstoff)
|
||||
__tzfile_default (char *std, char *dst, long int stdoff, long int dstoff)
|
||||
{
|
||||
size_t stdlen, dstlen, i;
|
||||
long int rule_offset, rule_stdoff, rule_dstoff;
|
||||
@ -332,12 +338,10 @@ DEFUN(__tzfile_default, (std, dst, stdoff, dstoff),
|
||||
compute_tzname_max (stdlen + dstlen);
|
||||
}
|
||||
|
||||
int
|
||||
DEFUN(__tzfile_compute, (timer, leap_correct, leap_hit),
|
||||
time_t timer AND long int *leap_correct AND int *leap_hit)
|
||||
static struct ttinfo *
|
||||
find_transition (time_t timer)
|
||||
{
|
||||
struct ttinfo *info;
|
||||
register size_t i;
|
||||
size_t i;
|
||||
|
||||
if (num_transitions == 0 || timer < transitions[0])
|
||||
{
|
||||
@ -360,7 +364,16 @@ DEFUN(__tzfile_compute, (timer, leap_correct, leap_hit),
|
||||
i = type_idxs[i - 1];
|
||||
}
|
||||
|
||||
info = &types[i];
|
||||
return &types[i];
|
||||
}
|
||||
|
||||
int
|
||||
__tzfile_compute (time_t timer, long int *leap_correct, int *leap_hit)
|
||||
{
|
||||
struct ttinfo *info;
|
||||
register size_t i;
|
||||
|
||||
info = find_transition (timer);
|
||||
__daylight = info->isdst;
|
||||
__timezone = info->offset;
|
||||
for (i = 0; i < num_types && i < sizeof (__tzname) / sizeof (__tzname[0]);
|
||||
@ -400,7 +413,7 @@ DEFUN(__tzfile_compute, (timer, leap_correct, leap_hit),
|
||||
}
|
||||
|
||||
void
|
||||
DEFUN(compute_tzname_max, (chars), size_t chars)
|
||||
compute_tzname_max (size_t chars)
|
||||
{
|
||||
extern size_t __tzname_cur_max; /* Defined in __tzset.c. */
|
||||
|
||||
|
||||
@ -514,9 +514,12 @@ tzset (void)
|
||||
|
||||
__tzset ();
|
||||
|
||||
/* Set `tzname'. */
|
||||
__tzname[0] = (char *) tz_rules[0].name;
|
||||
__tzname[1] = (char *) tz_rules[1].name;
|
||||
if (!__use_tzfile)
|
||||
{
|
||||
/* Set `tzname'. */
|
||||
__tzname[0] = (char *) tz_rules[0].name;
|
||||
__tzname[1] = (char *) tz_rules[1].name;
|
||||
}
|
||||
|
||||
__libc_lock_unlock (__tzset_lock);
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user