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| author | Werner Koch <wk@gnupg.org> | 2013-08-08 15:16:48 +0200 |
|---|---|---|
| committer | Werner Koch <wk@gnupg.org> | 2013-08-08 15:17:27 +0200 |
| commit | 426cbc9feca0c8f46208fb3670adab95f9e46087 (patch) | |
| tree | 5c68e2917c9cffcd53d875e5445caa6eaf2bd07c /mpi/mpiutil.c | |
| parent | cc082642c1b0f2a3e9ca78e1ffd3f64417c204bd (diff) | |
| download | libgcrypt-426cbc9feca0c8f46208fb3670adab95f9e46087.tar.gz | |
mpi: Clear immutable flag on the result of gcry_mpi_set.
* mpi/mpiutil.c (gcry_mpi_set): Reset immutable and const flags.
* tests/mpitests.c (test_const_and_immutable): Add a test for this.
--
gcry_mpi_set shall behave like gcry_mpi_copy and thus reset those
special flags. Problem reported by Christian Grothoff.
Signed-off-by: Werner Koch <wk@gnupg.org>
Diffstat (limited to 'mpi/mpiutil.c')
| -rw-r--r-- | mpi/mpiutil.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/mpi/mpiutil.c b/mpi/mpiutil.c index cff15b74..a65d2361 100644 --- a/mpi/mpiutil.c +++ b/mpi/mpiutil.c @@ -397,6 +397,7 @@ gcry_mpi_set( gcry_mpi_t w, gcry_mpi_t u) MPN_COPY( wp, up, usize ); w->nlimbs = usize; w->flags = u->flags; + w->flags &= ~(16|32); /* Reset the immutable and constant flags. */ w->sign = usign; return w; } |