FIX: The input handling for "hf 14b write" is now correct. Thanks Asper for spotting...

[proxmark3-svn] / client / cmdhf14b.c

diff --git a/client/cmdhf14b.c b/client/cmdhf14b.c
index 713959f29745c3cc1548f7a31d8b36c5a07af1e2..e3d0fc230423905891593df9bdca291584eadde2 100644 (file)
--- a/client/cmdhf14b.c
+++ b/client/cmdhf14b.c
@@ -404,20 +404,27 @@ int CmdHF14BWrite( const char *Cmd){
        bool isSrix4k = true;
        char str[20];   
 
-       if (cmdp == 'h' || cmdp == 'H') {
+       if (strlen(Cmd) < 1 || cmdp == 'h' || cmdp == 'H') {
                PrintAndLog("Usage:  hf 14b write <1|2> <BLOCK> <DATA>");
-               PrintAndLog("");
-               PrintAndLog("     sample: hf 14b write 1 127 11223344");
-               PrintAndLog("     sample: hf 14b write 1 255 11223344");
-               PrintAndLog("     sample: hf 14b write 2 15 11223344");
-               PrintAndLog("     sample: hf 14b write 2 255 11223344");
+               PrintAndLog("    [1 = SRIX4K]");
+               PrintAndLog("    [2 = SRI512]");
+               PrintAndLog("    [BLOCK number depends on tag, special block == FF]");
+               PrintAndLog("     sample: hf 14b write 1 7F 11223344");
+               PrintAndLog("           : hf 14b write 1 FF 11223344");
+               PrintAndLog("           : hf 14b write 2 15 11223344");
+               PrintAndLog("           : hf 14b write 2 FF 11223344");
                return 0;
        }
 
-       if ( param_getchar(Cmd, 0) == '2' )
+       if ( cmdp == '2' )
                isSrix4k = false;
        
-       blockno = param_get8(Cmd, 1);
+       //blockno = param_get8(Cmd, 1);
+       
+       if ( param_gethex(Cmd,1, &blockno, 2) ) {
+               PrintAndLog("Block number must include 2 HEX symbols");
+               return 0;
+       }
        
        if ( isSrix4k ){
                if ( blockno > 0x7f && blockno != 0xff ){
@@ -437,11 +444,12 @@ int CmdHF14BWrite( const char *Cmd){
        }
  
        if ( blockno == 0xff)
-               PrintAndLog("Writing to special block %02X [ %s]", blockno,  sprint_hex(data,4) );
+               PrintAndLog("[%s] Write special block %02X [ %s ]", (isSrix4k)?"SRIX4K":"SRI512" , blockno,  sprint_hex(data,4) );
        else
-               PrintAndLog("Writing to block %02X [ %s]", blockno,  sprint_hex(data,4) );
+               PrintAndLog("[%s] Write block %02X [ %s ]", (isSrix4k)?"SRIX4K":"SRI512", blockno,  sprint_hex(data,4) );
  
        sprintf(str, "-c -p 09 %02x %02x%02x%02x%02x", blockno, data[0], data[1], data[2], data[3]);
+
        CmdHF14BCmdRaw(str);
        return 0;
 }