RfidResearchGroup/proxmark3
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Merge pull request #449 from mwalker33/dev

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Broken "lf em 410x_sim" fix
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Philippe Teuwen 2019-10-24 12:31:50 +02:00 committed by GitHub
commit 2e47e00e94
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1 changed files with 6 additions and 1 deletions
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7
armsrc/appmain.c
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@ -1589,9 +1589,14 @@ static void PacketReceived(PacketCommandNG *packet) {
BigBuf_free();
}
uint16_t offset = MIN(BIGBUF_SIZE - PM3_CMD_DATA_SIZE - 3, payload->offset);
// need to copy len bytes of data, not PM3_CMD_DATA_SIZE - 3 - offset
// ensure len bytes copied wont go past end of bigbuf
uint16_t len = MIN(BIGBUF_SIZE - offset,PM3_CMD_DATA_SIZE - 3);
uint8_t *mem = BigBuf_get_addr();
memcpy(mem + offset, &payload->data, PM3_CMD_DATA_SIZE - 3 - offset);
memcpy(mem + offset, &payload->data, len);
// memcpy(mem + offset, &payload->data, PM3_CMD_DATA_SIZE - 3 - offset);
reply_ng(CMD_LF_UPLOAD_SIM_SAMPLES, PM3_SUCCESS, NULL, 0);
break;
}