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gpg: Fix expiration time when Creation-Date is specified. 

* g10/keygen.c (parse_expire_string_with_ct): New function, optionally
supply the creation time.
(parse_expire_string): Use parse_expire_string_with_ct with no
creation time.
(proc_parameter_file): Use parse_expire_string_with_ct possibly with
the creation time.

--

GnuPG-bug-id: 5252
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
This commit is contained in:
NIIBE Yutaka 2023-07-12 13:34:19 +09:00
parent 067bc2ed4c
commit b07b5144ff
No known key found for this signature in database
GPG Key ID: 640114AF89DE6054
1 changed files with 20 additions and 9 deletions
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29
g10/keygen.c
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@ -2740,14 +2740,19 @@ ask_curve (int *algo, int *subkey_algo, const char *current)
* just cope for the next few years until we get a 64-bit time_t or
* similar.
*/
u32
parse_expire_string( const char *string )
static u32
parse_expire_string_with_ct (const char *string, u32 creation_time)
{
int mult;
u32 seconds;
u32 abs_date = 0;
u32 curtime = make_timestamp ();
time_t tt;
u32 curtime;
if (creation_time == (u32)-1)
curtime = make_timestamp ();
else
curtime = creation_time;
if (!string || !*string || !strcmp (string, "none")
|| !strcmp (string, "never") || !strcmp (string, "-"))
@ -2767,6 +2772,13 @@ parse_expire_string( const char *string )
return seconds;
}
u32
parse_expire_string ( const char *string )
{
return parse_expire_string_with_ct (string, (u32)-1);
}
/* Parse a Creation-Date string which is either "1986-04-26" or
"19860426T042640". Returns 0 on error. */
static u32
@ -4157,6 +4169,7 @@ proc_parameter_file (ctrl_t ctrl, struct para_data_s *para, const char *fname,
int is_default = 0;
int have_user_id = 0;
int err, algo;
u32 creation_time = (u32)-1;
/* Check that we have all required parameters. */
r = get_parameter( para, pKEYTYPE );
@ -4322,15 +4335,13 @@ proc_parameter_file (ctrl_t ctrl, struct para_data_s *para, const char *fname,
if (r && *r->u.value && !(get_parameter_bool (para, pCARDKEY)
&& get_parameter_u32 (para, pKEYCREATIONDATE)))
{
u32 seconds;
seconds = parse_creation_string (r->u.value);
if (!seconds)
creation_time = parse_creation_string (r->u.value);
if (!creation_time)
{
log_error ("%s:%d: invalid creation date\n", fname, r->lnr );
return -1;
}
r->u.creation = seconds;
r->u.creation = creation_time;
r->key = pKEYCREATIONDATE; /* Change that entry. */
}
@ -4340,7 +4351,7 @@ proc_parameter_file (ctrl_t ctrl, struct para_data_s *para, const char *fname,
{
u32 seconds;
seconds = parse_expire_string( r->u.value );
seconds = parse_expire_string_with_ct (r->u.value, creation_time);
if( seconds == (u32)-1 )
{
log_error("%s:%d: invalid expire date\n", fname, r->lnr );