Launchpad has imported 3 comments from the remote bug at http://sourceware.org/bugzilla/show_bug.cgi?id=3944.
If you reply to an imported comment from within Launchpad, your comment will be sent to the remote bug automatically. Read more about Launchpad's inter-bugtracker facilities at https://help.launchpad.net/InterBugTracking. ------------------------------------------------------------------------ On 2007-01-30T21:05:24+00:00 Vassilis Pandis wrote: Hello, this is a bug originally reported at https://bugs.launchpad.net/bugs/50563 . An Ubuntu user reported the following: "This segfaults on Ubuntu Dapper: #define _XOPEN_SOURCE #include <time.h> int main() { struct tm tm; strptime("2004", "%Y", &tm); /* Segfault. */ return 0; } This does not: #define _XOPEN_SOURCE #include <time.h> int main() { struct tm tm; strptime("2004-01-01", "%Y-%m-%d", &tm); /* OK. */ strptime("2004-01", "%Y-%m", &tm); /* OK. */ return 0; } Internally, strptime() sets up a "struct tm" when parsing the date string. If both the month and day-of-month are not present, two fields in that struct are left uninitialized, and the segfault occurs when the uninitialized values are used in an array lookup in time/strptime_l.c:day_of_the_week(). I have a patch for this, but cannot be sure that it works, because I don't have enough disk space or CPU time for a glibc build." Unfortunately, we haven't been able to contact the user for a patch. At any rate, it would be nice if this were fixed. Thanks! Reply at: https://bugs.launchpad.net/glibc/+bug/50563/comments/5 ------------------------------------------------------------------------ On 2007-02-09T01:45:01+00:00 Drepper-fsp wrote: Fixed in cvs. Reply at: https://bugs.launchpad.net/glibc/+bug/50563/comments/7 ------------------------------------------------------------------------ On 2007-07-12T14:50:53+00:00 Cvs-commit wrote: Subject: Bug 3944 CVSROOT: /cvs/glibc Module name: libc Branch: glibc-2_5-branch Changes by: [email protected] 2007-07-12 14:50:42 Modified files: . : ChangeLog time : Makefile strptime_l.c Added files: time : tst-strptime3.c Log message: 2007-02-08 Jakub Jelinek <[email protected]> [BZ #3944] * time/strptime_l.c (__strptime_internal): Set have_mon for %b/%B/%h. Set have_mon and have_mday if tm_mon and tm_mday have been computed from tm_yday and tm_year. Don't crash in day_of_the_week or day_of_the_year if not have_mon and tm_mon contains bogus value. * time/Makefile (tests): Add tst-strptime3. * time/tst-strptime3.c: New test. Patches: http://sourceware.org/cgi-bin/cvsweb.cgi/libc/ChangeLog.diff?cvsroot=glibc&only_with_tag=glibc-2_5-branch&r1=1.10362.2.40&r2=1.10362.2.41 http://sourceware.org/cgi-bin/cvsweb.cgi/libc/time/tst-strptime3.c.diff?cvsroot=glibc&only_with_tag=glibc-2_5-branch&r1=NONE&r2=1.1.6.1 http://sourceware.org/cgi-bin/cvsweb.cgi/libc/time/Makefile.diff?cvsroot=glibc&only_with_tag=glibc-2_5-branch&r1=1.110&r2=1.110.2.1 http://sourceware.org/cgi-bin/cvsweb.cgi/libc/time/strptime_l.c.diff?cvsroot=glibc&only_with_tag=glibc-2_5-branch&r1=1.7&r2=1.7.2.1 Reply at: https://bugs.launchpad.net/glibc/+bug/50563/comments/9 ** Changed in: glibc Importance: Unknown => Medium -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/50563 Title: [fixed in 2.6] strptime() segfaults on certain date formats -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
