github/RRG-Proxmark3
1
0
Fork 0
mirror of https://github.com/RfidResearchGroup/proxmark3.git synced 2025-08-21 22:03:42 -07:00
Code Issues Projects Releases Packages Wiki Activity Actions

data hex2bin - talk about brain melt

Browse source
This commit is contained in:
iceman1001 2021-03-28 18:46:27 +02:00
commit 5e963a0746
1 changed files with 21 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

21
client/src/cmddata.c
View file

@ -2421,9 +2421,30 @@ static int Cmdhex2bin(const char *Cmd) {
PrintAndLogEx(FAILED, "Error parsing bytes"); PrintAndLogEx(FAILED, "Error parsing bytes");
return PM3_EINVARG; return PM3_EINVARG;
} }
for (int i = 0; i < dlen; i++) {
char x = data[i];
if (isxdigit(x) == false) {
PrintAndLogEx(ERR, "Non hex digit found");
return PM3_EINVARG;
}
}
PrintAndLogEx(SUCCESS, "" NOLF); PrintAndLogEx(SUCCESS, "" NOLF);
for (int i = 0; i < dlen; i++) { for (int i = 0; i < dlen; i++) {
char x = data[i]; char x = data[i];
// capitalize
if (x >= 'a' && x <= 'f')
x -= 32;
// convert to numeric value
if (x >= '0' && x <= '9')
x -= '0';
else if (x >= 'A' && x <= 'F')
x -= 'A' - 10;
else
continue;
for (int j = 0 ; j < 4 ; ++j) { for (int j = 0 ; j < 4 ; ++j) {
PrintAndLogEx(NORMAL, "%d" NOLF, (x >> (3 - j)) & 1); PrintAndLogEx(NORMAL, "%d" NOLF, (x >> (3 - j)) & 1);
} }