From 979bba376dc9d6430b00b853a99b9dfadca4f38c Mon Sep 17 00:00:00 2001
From: marshmellow42 <marshmellowrf@gmail.com>
Date: Thu, 28 May 2015 13:23:31 -0400
Subject: [PATCH] add offset option to data printdemodbuffer
easily see demod buffer's hex values at different bit offsets by using:
data printdemodbuffer x o <offset>
---
client/cmddata.c | 66 +++++++++++++++++++++++++++++++++++++-----------
1 file changed, 51 insertions(+), 15 deletions(-)
diff --git a/client/cmddata.c b/client/cmddata.c
index b9069bc19..e23b6d597 100644
--- a/client/cmddata.c
+++ b/client/cmddata.c
@@ -55,6 +55,15 @@ int CmdSetDebugMode(const char *Cmd)
return 1;
}
+int usage_data_printdemodbuf(){
+ PrintAndLog("Usage: data printdemodbuffer x o <offset>");
+ PrintAndLog("Options: ");
+ PrintAndLog(" h This help");
+ PrintAndLog(" x output in hex (omit for binary output)");
+ PrintAndLog(" o <offset> enter offset in # of bits");
+ return 0;
+}
+
//by marshmellow
void printDemodBuff(void)
{
@@ -73,23 +82,50 @@ void printDemodBuff(void)
int CmdPrintDemodBuff(const char *Cmd)
{
- char hex;
- char printBuff[512]={0x00};
- uint8_t numBits = DemodBufferLen & 0xFFFC;
- sscanf(Cmd, "%c", &hex);
- if (hex == 'h'){
- PrintAndLog("Usage: data printdemodbuffer [x]");
- PrintAndLog("Options: ");
- PrintAndLog(" h This help");
- PrintAndLog(" x output in hex (omit for binary output)");
- return 0;
+ char hex[512]={0x00};
+ bool hexMode = false;
+ bool errors = false;
+ uint8_t offset = 0;
+ char cmdp = 0;
+ while(param_getchar(Cmd, cmdp) != 0x00)
+ {
+ switch(param_getchar(Cmd, cmdp))
+ {
+ case 'h':
+ case 'H':
+ return usage_data_printdemodbuf();
+ case 'x':
+ case 'X':
+ hexMode = true;
+ cmdp++;
+ break;
+ case 'o':
+ case 'O':
+ offset = param_get8(Cmd, cmdp+1);
+ if (!offset) errors = true;
+ cmdp += 2;
+ break;
+ default:
+ PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
+ errors = true;
+ break;
+ }
+ if(errors) break;
}
- if (hex == 'x'){
- numBits = binarraytohex(printBuff, (char *)DemodBuffer, numBits);
+ //Validations
+ if(errors) return usage_data_printdemodbuf();
+
+ int numBits = (DemodBufferLen-offset) & 0x7FC; //make sure we don't exceed our string
+
+ if (hexMode){
+ char *buf = DemodBuffer + offset;
+ numBits = binarraytohex(hex, buf, numBits);
if (numBits==0) return 0;
- PrintAndLog("DemodBuffer: %s",printBuff);
+ PrintAndLog("DemodBuffer: %s",hex);
} else {
- printDemodBuff();
+ //setDemodBuf(DemodBuffer, DemodBufferLen-offset, offset);
+ char *bin = sprint_bin_break(DemodBuffer+offset,numBits,16);
+ PrintAndLog("DemodBuffer:\n%s",bin);
}
return 1;
}
@@ -2182,7 +2218,7 @@ static command_t CommandTable[] =
{"manrawdecode", Cmdmandecoderaw, 1, "[invert] [maxErr] -- Manchester decode binary stream in DemodBuffer"},
{"norm", CmdNorm, 1, "Normalize max/min to +/-128"},
{"plot", CmdPlot, 1, "Show graph window (hit 'h' in window for keystroke help)"},
- {"printdemodbuffer",CmdPrintDemodBuff, 1, "[x] -- print the data in the DemodBuffer - 'x' for hex output"},
+ {"printdemodbuffer",CmdPrintDemodBuff, 1, "[x] [o] <offset> -- print the data in the DemodBuffer - 'x' for hex output"},
{"pskindalademod", CmdIndalaDecode, 1, "[clock] [invert<0|1>] -- Demodulate an indala tag (PSK1) from GraphBuffer (args optional)"},
{"psknexwatchdemod",CmdPSKNexWatch, 1, "Demodulate a NexWatch tag (nexkey, quadrakey) (PSK1) from GraphBuffer"},
{"rawdemod", CmdRawDemod, 1, "[modulation] ... <options> -see help (h option) -- Demodulate the data in the GraphBuffer and output binary"},