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add -EPERM return in case of missing authentication 

git-svn-id: https://svn.gnumonks.org/trunk/librfid@1661 e0336214-984f-0b4b-a45f-81c69e1f0ede
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laforge 2005-11-08 09:14:06 +00:00
parent 2ac9e1e23e
commit 27e8fe5394
1 changed files with 3 additions and 0 deletions
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3
src/rfid_proto_mifare_classic.c
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@ -64,6 +64,9 @@ mfcl_read(struct rfid_protocol_handle *ph, unsigned int page,
if (ret < 0)
return ret;
if (real_rx_len == 1 && *rx_buf == 0x04)
return -EPERM;
if (real_rx_len < *rx_len)
*rx_len = real_rx_len;