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fix: possible bad null ref

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This commit is contained in:
iceman1001 2019-02-24 20:00:41 +01:00
parent c650c23856
commit 17fcd8c24b
1 changed files with 11 additions and 11 deletions
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22
client/emv/emvjson.c
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@ -242,20 +242,20 @@ int JsonSaveTLVTree(json_t *root, json_t *elm, char *path, struct tlvdb *tlvdbel
bool HexToBuffer(const char *errormsg, const char *hexvalue, uint8_t * buffer, size_t maxbufferlen, size_t *bufferlen) {
int buflen = 0;
switch(param_gethex_to_eol(hexvalue, 0, buffer, maxbufferlen, &buflen)) {
case 1:
PrintAndLog("%s Invalid HEX value.", errormsg);
return false;
case 2:
PrintAndLog("%s Hex value too large.", errormsg);
return false;
case 3:
PrintAndLog("%s Hex value must have even number of digits.", errormsg);
return false;
switch (param_gethex_to_eol(hexvalue, 0, buffer, maxbufferlen, &buflen)) {
case 1:
PrintAndLog("%s Invalid HEX value.", errormsg);
return false;
case 2:
PrintAndLog("%s Hex value too large.", errormsg);
return false;
case 3:
PrintAndLog("%s Hex value must have even number of digits.", errormsg);
return false;
}
if (buflen > maxbufferlen) {
PrintAndLog("%s HEX length (%d) more than %d", errormsg, *bufferlen, maxbufferlen);
PrintAndLog("%s HEX length (%d) more than %d", errormsg, (bufferlen) ? *bufferlen : -1, maxbufferlen);
return false;
}