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CHG: "hf legic restore" - added a filesize and cardsize check

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This commit is contained in:
iceman1001 2016-10-08 19:25:23 +02:00
parent cd79d97223
commit 367996567b
1 changed files with 17 additions and 5 deletions
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22
client/cmdhflegic.c
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@ -966,7 +966,7 @@ int CmdLegicRestore(const char *Cmd){
uint8_t *data = malloc(numofbytes);
if (!data) {
PrintAndLog("Fail, cannot allocate memory");
return 3;
return 2;
}
memset(data, 0, numofbytes);
@ -975,15 +975,27 @@ int CmdLegicRestore(const char *Cmd){
// set up file
fnameptr += fileNlen;
sprintf(fnameptr, ".bin");
PrintAndLog("Reading binary file...");
if ((f = fopen(filename,"rb")) == NULL) {
PrintAndLog("File %s not found or locked", filename);
return 2;
return 3;
}
// verify size of dumpfile is the same as card.
// verify size of dumpfile is the same as card.
fseek(f, 0, SEEK_END); // seek to end of file
size_t filesize = ftell(f); // get current file pointer
fseek(f, 0, SEEK_SET); // seek back to beginning of file
if ( filesize != numofbytes) {
PrintAndLog("Fail, Filesize and cardsize is not equal. [%u != %u]", filesize, numofbytes);
free(data);
fclose(f);
return 4;
}
PrintAndLog("Reading binary file...");
// load file
size_t bytes_read = fread(data, 1, numofbytes, f);