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gpg: Prepare for a longer fingerprint

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* g10/card-util.c (change_cafpr): Use MAX_FINGERPRINT_LEN.
* g10/cipher.c (write_header): Use snprintf.
* g10/gpg.h (MAX_FINGERPRINT_LEN): Change to 32.
(MAX_FORMATTED_FINGERPRINT_LEN): Change to 59
* g10/keyid.c (format_hexfingerprint): Add v5 fingerprint format.
* g10/tofu.c (get_policy): Use MAX_FINGERPRINT_LEN for the buffer but
keep the raw length for now.
--

Note that this patch only increases the size of the buffer and adds a
new formatting for v5 fingerprints.  Moe work is required to fix
internal data structures like those in trustdb.gpg and the tofu
tables.

Signed-off-by: Werner Koch <wk@gnupg.org>
This commit is contained in:
Werner Koch 2017-09-27 09:42:13 +02:00
parent 76c80021d4
commit ecbbafb88d
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8 changed files with 65 additions and 22 deletions
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13
g10/gpg.h
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@ -38,14 +38,15 @@
#define MAX_EXTERN_MPI_BITS 16384
/* The maximum length of a binary fingerprints. This is used to
provide a static buffer and will be increased if we need to support
longer fingerprints.
Warning: At some places we still use 20 instead of this macro. */
#define MAX_FINGERPRINT_LEN 20
* provide a static buffer and will be increased if we need to support
* longer fingerprints. Warning: At some places we have some
* assumption on a 20 byte fingerprint.
* Watch out for FIXME(fingerprint) */
#define MAX_FINGERPRINT_LEN 32
/* The maximum length of a formatted fingerprint as returned by
format_hexfingerprint(). */
#define MAX_FORMATTED_FINGERPRINT_LEN 50
* format_hexfingerprint(). */
#define MAX_FORMATTED_FINGERPRINT_LEN 59
/*