While scd/apdu.c assumes a maximum length of 4096 byte for an extended length APDU, scd/pcsc-wrapper allocates only 1024 byte for the response.
As most certificates are larger than 1024, reading them with extended length fails. The attached patch fixes the buffer size. Andreas
>From 937a7660c83cba6f126415a17dceb9dd054887ef Mon Sep 17 00:00:00 2001 From: Andreas Schwier <andreas.schw...@cardcontact.de> Date: Fri, 18 Jul 2014 18:22:26 +0200 Subject: [PATCH 2/2] pcsc: Enlarged APDU buffer to 4096, as most certificates exceed 1024 byte --- scd/pcsc-wrapper.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/scd/pcsc-wrapper.c b/scd/pcsc-wrapper.c index e20e111..2e48413 100644 --- a/scd/pcsc-wrapper.c +++ b/scd/pcsc-wrapper.c @@ -714,7 +714,7 @@ handle_transmit (unsigned char *argbuf, size_t arglen) long err; struct pcsc_io_request_s send_pci; pcsc_dword_t recv_len; - unsigned char buffer[1024]; + unsigned char buffer[4096]; /* The apdu should at least be one byte. */ if (!arglen) -- 1.7.9.5
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