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iso9660_get_dtime hack: we've seen it happen that everything except

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gmtoff is zero and the expected date is the beginning of the epoch. So
we accept 6 numbers being zero. I'm also not sure if using the of the
Epoch is also the right thing to do either.
This commit is contained in:
rocky
2005-02-22 09:55:47 +00:00
parent 1dcab83589
commit 7bbdbd4f7c
3 changed files with 45 additions and 21 deletions
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28
lib/iso9660/iso9660.c
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@@ -1,5 +1,5 @@
/*
$Id: iso9660.c,v 1.7 2005/02/22 04:32:52 rocky Exp $
$Id: iso9660.c,v 1.8 2005/02/22 09:55:47 rocky Exp $
Copyright (C) 2000 Herbert Valerio Riedel <hvr@gnu.org>
Copyright (C) 2003, 2004, 2005 Rocky Bernstein <rocky@panix.com>
@@ -48,7 +48,7 @@ const char ISO_STANDARD_ID[] = {'C', 'D', '0', '0', '1'};
#include <errno.h>
#endif
static const char _rcsid[] = "$Id: iso9660.c,v 1.7 2005/02/22 04:32:52 rocky Exp $";
static const char _rcsid[] = "$Id: iso9660.c,v 1.8 2005/02/22 09:55:47 rocky Exp $";
/* Variables to hold debugger-helping enumerations */
enum iso_enums1 iso_enums1;
@@ -103,6 +103,30 @@ iso9660_get_dtime (const iso9660_dtime_t *idr_date, bool b_localtime,
{
if (!idr_date) return false;
/*
Section 9.1.5 of ECMA 119 says:
If all seven numbers are zero, it shall mean that the date and
time are not specified.
HACK: However we've seen it happen that everything except gmtoff
is zero and the expected date is the beginning of the epoch. So
we accept 6 numbers being zero. I'm also not sure if using the
beginning of the Epoch is also the right thing to do either.
*/
if ( 0 == idr_date->dt_year && 0 == idr_date->dt_month &&
0 == idr_date->dt_day && 0 == idr_date->dt_hour &&
0 == idr_date->dt_minute && 0 == idr_date->dt_second ) {
time_t t = 0;
struct tm *p_temp_tm;
p_temp_tm = gmtime(&t);
memcpy(p_tm, p_temp_tm, sizeof(struct tm));
return true;
}
memset(p_tm, 0, sizeof(struct tm));
p_tm->tm_year = idr_date->dt_year;
p_tm->tm_mon = idr_date->dt_month - 1;