github/proxmark3
1
1
Fork 0
mirror of https://github.com/RfidResearchGroup/proxmark3.git synced 2026-05-09 03:00:07 -04:00
Code Issues Packages Projects Releases Wiki Activity

fix split block length bug

Browse Source
This commit is contained in:
merlokk
2021-07-31 20:33:54 +03:00
parent c46f227a4c
commit 5eefe7d14c
1 changed files with 6 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
client/src/mifare/desfirecore.c
View File

@@ -695,8 +695,13 @@ static void DesfireSplitBytesToBlock(uint8_t *blockdata, size_t *blockdatacount,
size_t len = 0;
for (int i = 0; i < *blockdatacount; i++) {
size_t tlen = len + blockdata[i * blockdatasize];
if (tlen > dstdatalen)
if (tlen > dstdatalen) {
tlen = dstdatalen;
if (tlen >= len)
blockdata[i * blockdatasize] = tlen - len;
else
blockdata[i * blockdatasize] = 0;
}
if (len == tlen) {
*blockdatacount = i;
break;