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ecc-sos: Fix gpg_mpi_write for opaque bit string.

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* g10/build-packet.c (gpg_mpi_write): Handle opaque bit string
when it's has exact number of bits.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
This commit is contained in:
NIIBE Yutaka 2020-05-04 19:00:38 +09:00
parent 4cc4ff03a2
commit 70af2165ec
1 changed files with 1 additions and 0 deletions
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g10/build-packet.c
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@ -306,6 +306,7 @@ gpg_mpi_write (iobuf_t out, gcry_mpi_t a, unsigned int *r_nwritten)
p = gcry_mpi_get_opaque (a, &nbits); p = gcry_mpi_get_opaque (a, &nbits);
if (p) if (p)
{ {
nbits = ((nbits + 7)/8)*8;
/* Strip leading zero bits. */ /* Strip leading zero bits. */
for (; nbits >= 8 && !*p; p++, nbits -= 8) for (; nbits >= 8 && !*p; p++, nbits -= 8)
; ;