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data raw am - fix length checks

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iceman1001 2020-10-06 20:31:21 +02:00
parent 3f9ddf9b29
commit 073c630458
1 changed files with 26 additions and 16 deletions
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42
client/src/cmddata.c
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@ -638,28 +638,38 @@ int ASKDemod(int clk, int invert, int maxErr, size_t maxLen, bool amplify, bool
//attempts to demodulate ask while decoding manchester
//prints binary found and saves in graphbuffer for further commands
static int Cmdaskmandemod(const char *Cmd) {
size_t slen = strlen(Cmd);
char cmdp = tolower(param_getchar(Cmd, 0));
if (strlen(Cmd) > 45 || cmdp == 'h') return usage_data_rawdemod_am();
bool st = false;
if (Cmd[0] == 's') {
st = true;
Cmd++;
} else if (Cmd[1] == 's') {
st = true;
Cmd += 2;
}
int clk = 0;
int invert = 0;
int maxErr = 100;
if (slen > 45 || cmdp == 'h') return usage_data_rawdemod_am();
bool st = false, amplify = false;
int clk = 0, invert = 0, maxErr = 100;
size_t maxLen = 0;
bool amplify = false;
char amp = tolower(param_getchar(Cmd, 0));
sscanf(Cmd, "%i %i %i %zu %c", &clk, &invert, &maxErr, &maxLen, &amp);
amplify = amp == 'a';
if (slen) {
if (Cmd[0] == 's') {
st = true;
Cmd++;
} else if (slen > 1 && Cmd[1] == 's') {
st = true;
Cmd += 2;
}
char amp = tolower(param_getchar(Cmd, 0));
sscanf(Cmd, "%i %i %i %zu %c", &clk, &invert, &maxErr, &maxLen, &amp);
amplify = (amp == 'a');
}
if (clk == 1) {
invert = 1;
clk = 0;
}
if (invert != 0 && invert != 1) {
PrintAndLogEx(WARNING, "Invalid value for invert: %i", invert);
return PM3_EINVARG;