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card-piv.c: initialize variable to fix a ppc64el build failure 

This fixes a build failure with optimized ppc64el and new gcc builds
card-piv.c: In function ‘piv_validate_general_authentication.isra.3’:
card-piv.c:2390:9: error: ‘rbuflen’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
    body = sc_asn1_find_tag(card->ctx, rbuf, rbuflen, 0x7c, &bodylen);
    ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
This commit is contained in:
Gianfranco Costamagna 2018-07-10 14:49:42 +02:00 committed by Frank Morgner
parent 88de66bb13
commit a6b4605b86
1 changed files with 1 additions and 1 deletions
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src/libopensc/card-piv.c
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@ -2334,7 +2334,7 @@ static int piv_validate_general_authentication(sc_card_t *card,
u8 sbuf[4096]; /* needs work. for 3072 keys, needs 384+10 or so */
u8 *rbuf = NULL;
size_t rbuflen;
size_t rbuflen = 0;
SC_FUNC_CALLED(card->ctx, SC_LOG_DEBUG_VERBOSE);