github/RRG-Proxmark3
1
0
Fork 0
mirror of https://github.com/RfidResearchGroup/proxmark3.git synced 2025-08-21 05:43:48 -07:00
Code Issues Projects Releases Packages Wiki Activity Actions 4

fix valgrind memory bug

Browse source
This commit is contained in:
iceman1001 2024-04-24 21:24:52 +02:00
commit b754f09d24
1 changed files with 34 additions and 15 deletions
Download patch file Download diff file Expand all files Collapse all files

39
client/src/cmdhf14b.c
View file

@ -387,24 +387,34 @@ static bool get_14b_UID(uint8_t *d, iso14b_type_t *found_type) {
* filename must match '^hf-14b-[0-9A-F]{16}' * filename must match '^hf-14b-[0-9A-F]{16}'
*/ */
uint8_t *get_uid_from_filename(const char *filename) { uint8_t *get_uid_from_filename(const char *filename) {
static uint8_t uid[8] ;
memset(uid, 0, 8) ; static uint8_t uid[8];
char uidinhex[17] ; memset(uid, 0, 8);
if (strlen(filename) < 23 || strncmp(filename, "hf-14b-", 7)) {
if (strlen(filename) < 23) {
PrintAndLogEx(ERR, "can't get uid from filename '%s'. Expected format is hf-14b-<uid>...", filename); PrintAndLogEx(ERR, "can't get uid from filename '%s'. Expected format is hf-14b-<uid>...", filename);
return uid ; return uid;
} }
char *found = strstr(filename, "hf-14b-");
if (found == NULL) {
PrintAndLogEx(ERR, "can't get uid from filename '%s'. Expected format is hf-14b-<uid>...", filename);
return uid;
}
// extract uid part from filename // extract uid part from filename
strncpy(uidinhex, filename + 7, 16) ; char uidinhex[17] = {0};
uidinhex[16] = '\0' ; strncpy(uidinhex, found + 7, 16);
uidinhex[16] = '\0';
int len = hex_to_bytes(uidinhex, uid, 8); int len = hex_to_bytes(uidinhex, uid, 8);
if (len == 8) if (len == 8) {
return SwapEndian64(uid, 8, 8); return SwapEndian64(uid, 8, 8);
else { } else {
PrintAndLogEx(ERR, "get_uid_from_filename failed: hex_to_bytes returned %d", len); PrintAndLogEx(ERR, "get_uid_from_filename failed: hex_to_bytes returned %d", len);
memset(uid, 0, 8); memset(uid, 0, 8);
} }
return uid ; return uid;
} }
// print full atqb info // print full atqb info
@ -2471,11 +2481,20 @@ static int CmdHF14BAPDU(const char *Cmd) {
} }
PrintAndLogEx(INFO, "<<<< %s", sprint_hex(data, datalen)); PrintAndLogEx(INFO, "<<<< %s", sprint_hex(data, datalen));
uint16_t sw = get_sw(data, datalen);
if (sw != ISO7816_OK) {
PrintAndLogEx(SUCCESS, "APDU response: " _YELLOW_("%02x %02x") " - %s" PrintAndLogEx(SUCCESS, "APDU response: " _YELLOW_("%02x %02x") " - %s"
, data[datalen - 2] , data[datalen - 2]
, data[datalen - 1] , data[datalen - 1]
, GetAPDUCodeDescription(data[datalen - 2], data[datalen - 1]) , GetAPDUCodeDescription(data[datalen - 2], data[datalen - 1])
); );
} else {
PrintAndLogEx(SUCCESS, "APDU response: " _GREEN_("%02x %02x") " - %s"
, data[datalen - 2]
, data[datalen - 1]
, GetAPDUCodeDescription(data[datalen - 2], data[datalen - 1])
);
}
// TLV decoder // TLV decoder
if (decode_TLV && datalen > 4) { if (decode_TLV && datalen > 4) {