From 2f1226cea902076ef98396db58983298ed079d51 Mon Sep 17 00:00:00 2001 From: Werner Koch Date: Fri, 31 Oct 2003 12:07:48 +0000 Subject: [PATCH] (parse_timestamp): Detect ISO 8601 timestamps and try to convert them. --- TODO | 9 +++++++-- gpgme/ChangeLog | 5 +++++ gpgme/keylist.c | 40 +++++++++++++++++++++++++++++++++++++++- gpgme/verify.c | 2 ++ 4 files changed, 53 insertions(+), 3 deletions(-) diff --git a/TODO b/TODO index 80f4b85..e5841a8 100644 --- a/TODO +++ b/TODO @@ -26,12 +26,13 @@ Hey Emacs, this is -*- outline -*- mode! * Thread support: ** When GNU Pth supports sendmsg/recvmsg, wrap them properly. +** Without timegm (3) support our ISO time parser is not thread safe. * New features: ** notification system We need a simple notification system, probably a simple callback with a string and some optional arguments. This is for example - required to notify an application of a changed smartcard, The + required to notify an application of a changed smartcard, The application can then do whatever is required. There are other usages too. This notfication system should be independent of any contextes of course. @@ -56,7 +57,11 @@ Hey Emacs, this is -*- outline -*- mode! worked around in a different way *** Selecting the symmetric cipher. *** Exchanging keys with key servers. - +** Allow selection of subkeys +** Allow to return time stamps in ISO format + This allows us to handle years later than 2037 properly. With the + time_t interface they are all mapped to 2037-12-31 + * Documentation ** Document validity and trust issues. diff --git a/gpgme/ChangeLog b/gpgme/ChangeLog index 3e36692..2966d6b 100644 --- a/gpgme/ChangeLog +++ b/gpgme/ChangeLog @@ -1,3 +1,8 @@ +2003-10-31 Werner Koch + + * keylist.c (parse_timestamp): Detect ISO 8601 timestamps and try + to convert them. + 2003-10-10 Marcus Brinkmann * genkey.c (get_key_parameter): Make a copy of the key parameters. diff --git a/gpgme/keylist.c b/gpgme/keylist.c index 07c9385..9bb5e47 100644 --- a/gpgme/keylist.c +++ b/gpgme/keylist.c @@ -122,7 +122,45 @@ parse_timestamp (char *timestamp) if (!*timestamp) return 0; - return (time_t) strtoul (timestamp, NULL, 10); + if (strlen (timestamp) >= 15 && timestamp[8] == 'T') + { + struct tm buf; + int year; + + year = atoi_4 (timestamp); + if (year < 1900) + return (time_t)(-1); + + /* Fixme: We would better use a configure test to see whether + mktime can handle dates beyond 2038. */ + if (sizeof (time_t) <= 4 && year >= 2038) + return (time_t)2145914603; /* 2037-12-31 23:23:23 */ + + memset (&buf, 0, sizeof buf); + buf.tm_year = year - 1900; + buf.tm_mon = atoi_2 (timestamp+4) - 1; + buf.tm_mday = atoi_2 (timestamp+6); + buf.tm_hour = atoi_2 (timestamp+9); + buf.tm_min = atoi_2 (timestamp+11); + buf.tm_sec = atoi_2 (timestamp+13); + +#ifdef HAVE_TIMEGM + return timegm (&buf); +#else + { + time_t tim; + + putenv ("TZ=UTC"); + tim = mktime (&buf); +#ifdef __GNUC__ +#warning fixme: we must somehow reset TZ here. It is not threadsafe anyway. +#endif + return tim; + } +#endif /* !HAVE_TIMEGM */ + } + else + return (time_t) strtoul (timestamp, NULL, 10); } diff --git a/gpgme/verify.c b/gpgme/verify.c index 3f70851..b92e753 100644 --- a/gpgme/verify.c +++ b/gpgme/verify.c @@ -259,6 +259,8 @@ parse_valid_sig (gpgme_signature_t sig, char *args) { char *tail; errno = 0; + + /* FIXME: We need to cope with ISO time strings here. */ sig->timestamp = strtol (end, &tail, 0); if (errno || end == tail || (*tail && *tail != ' ')) return gpg_error (GPG_ERR_INV_ENGINE); -- 2.26.2