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fix lf search bugs when no tag is on antenna

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cotag read could enter endless loop, now cancels if the next bit doesn't
appear

em4x05 detection would loop due to a threshold never being met, now has
a dump out after 1000 samples tested.

fixed some indenting in hitag2 while i was reviewing that code for
potential endless loops...
This commit is contained in:
marshmellow42 2017-11-10 15:56:52 -05:00
commit 217cfb6b29
7 changed files with 59 additions and 46 deletions
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2
client/cmdlf.c
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@ -945,7 +945,7 @@ int CmdLFfind(const char *Cmd)
PrintAndLog("\nValid EM4x05/EM4x69 Chip Found\nUse lf em 4x05readword/dump commands to read\n");
return 1;
}
ans=CmdLFHitagReader("26");
ans=CmdLFHitagReader("26"); // 26 = RHT2F_UID_ONLY
if (ans==0) {
return 1;
}

1
client/cmdlfem4x.c
View file

@ -950,7 +950,6 @@ int EM4x05ReadWord_ext(uint8_t addr, uint32_t pwd, bool usePwd, uint32_t *wordDa
}
int testLen = (GraphTraceLen < 1000) ? GraphTraceLen : 1000;
if (graphJustNoise(GraphBuffer, testLen)) {
PrintAndLog("no tag not found");
return -1;
}
//attempt demod:

1
client/cmdlfhitag.c
View file

@ -239,6 +239,7 @@ int CmdLFHitagReader(const char *Cmd) {
c.arg[0] = htf;
// Send the command to the proxmark
clearCommandBuffer();
SendCommand(&c);
UsbCommand resp;