[Bug libc/3506] New: strverscmp misbehaves with additional text after the version number

[Bug libc/3506] New: strverscmp misbehaves with additional text after the version number

[guichaz at yahoo dot fr]

strverscmp("gliv-1.0", "gliv-1.0.1") => -46 => Good
strverscmp("gliv-1.0.tar.gz", "gliv-1.0.1.tar.gz") => 67 => Bad
Given that strverscmp is mainly used to sort filenames of versionned projects,
it should apply the same order with or without a suffix.

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           Summary: strverscmp misbehaves with additional text after the
                    version number
           Product: glibc
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: libc
        AssignedTo: drepper at redhat dot com
        ReportedBy: guichaz at yahoo dot fr
                CC: glibc-bugs at sources dot redhat dot com


http://sourceware.org/bugzilla/show_bug.cgi?id=3506

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[Bug libc/3506] strverscmp misbehaves with additional text after the version number

[jakub at redhat dot com]

------- Additional Comments From jakub at redhat dot com  2006-11-27 15:25 -------
The strverscmp function really can't change at this point, it is well documented
how it behaves and programs rely on its behavior.  strverscmp only cares about
the longest substring containing consecutive digits around the first differing
byte, so not even dots mean anything to it.
You are looking for a function like rpmvercmp in <rpm/rpmlib.h> which provides
segmented comparison.  But why should that be in libc?

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           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |WAITING


http://sourceware.org/bugzilla/show_bug.cgi?id=3506

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[Bug libc/3506] strverscmp misbehaves with additional text after the version number

[guichaz at yahoo dot fr]

------- Additional Comments From guichaz at yahoo dot fr  2006-12-03 13:52 -------
Thanks for pointing me out rpmvercmp. If you don't want to change the strverscmp
behaviour, then the bug should be closed I think.


-- 


http://sourceware.org/bugzilla/show_bug.cgi?id=3506

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[Bug libc/3506] strverscmp misbehaves with additional text after the version number

[drepper at redhat dot com]

------- Additional Comments From drepper at redhat dot com  2007-02-16 07:33 -------
strverscmp cannot be changed.  And it's simply not meant to do the kind of
comparisons you expect it to do.

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           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|WAITING                     |RESOLVED
         Resolution|                            |WORKSFORME


http://sourceware.org/bugzilla/show_bug.cgi?id=3506

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