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common: Improve compare_string_versions.

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* common/stringhelp.c: Include limits.h.
(compare_version_strings): Change semantics to behave like strcmp.
Include the patch lebel in the comparison.  Allow checking a single
version string.
* common/t-stringhelp.c (test_compare_version_strings): Adjust test
vectors and a few new vectors.
* g10/call-agent.c (warn_version_mismatch): Adjust to new sematics.
* g10/call-dirmngr.c (warn_version_mismatch): Ditto.
* sm/call-agent.c (warn_version_mismatch): Ditto.
* sm/call-dirmngr.c (warn_version_mismatch): Ditto.

Signed-off-by: Werner Koch <wk@gnupg.org>
This commit is contained in:
Werner Koch 2016-11-02 16:24:58 +01:00
parent 60ad1a7f37
commit 488b183811
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GPG key ID: E3FDFF218E45B72B
6 changed files with 82 additions and 44 deletions
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g10/call-agent.c
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@ -195,7 +195,7 @@ warn_version_mismatch (assuan_context_t ctx, const char *servername, int mode)
if (err)
log_error (_("error getting version from '%s': %s\n"),
servername, gpg_strerror (err));
else if (!compare_version_strings (serverversion, myversion))
else if (compare_version_strings (serverversion, myversion) < 0)
{
char *warn;