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Changed fromHex() to use an supplied buffer

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Solves the problem with returning a pointer to local variable.

Signed-off-by: Karl Thorén <karl.h.thoren@gmail.com>
This commit is contained in:
Karl Thorén 2020-12-27 16:29:53 +01:00
parent 59ca29f6a8
commit feed10184b
No known key found for this signature in database
GPG Key ID: 5041F85ECFEBA137
2 changed files with 13 additions and 8 deletions
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19
src/web/AmsWebServer.cpp
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@ -147,7 +147,9 @@ void AmsWebServer::temperaturePost() {
if(debugger->isActive(RemoteDebug::DEBUG)) {
debugger->printf("Addr: %s, name: %s\n", address.c_str(), name.c_str());
}
config->updateTempSensorConfig(fromHex(address, 8), name.c_str(), common);
uint8_t hexStr[8];
fromHex(hexStr, address, 8);
config->updateTempSensorConfig(hexStr, name.c_str(), common);
delay(1);
}
@ -343,12 +345,10 @@ String AmsWebServer::toHex(uint8_t* in, uint8_t size) {
return hex;
}
uint8_t* AmsWebServer::fromHex(String in, uint8_t size) {
uint8_t ret[size];
void AmsWebServer::fromHex(uint8_t *out, String in, uint8_t size) {
for(int i = 0; i < size*2; i += 2) {
ret[i/2] = strtol(in.substring(i, i+2).c_str(), 0, 16);
out[i/2] = strtol(in.substring(i, i+2).c_str(), 0, 16);
}
return ret;
}
void AmsWebServer::configWifiHtml() {
@ -786,13 +786,18 @@ void AmsWebServer::handleSave() {
String encryptionKeyHex = server.arg("meterEncryptionKey");
if(!encryptionKeyHex.isEmpty()) {
encryptionKeyHex.replace("0x", "");
config->setMeterEncryptionKey(fromHex(encryptionKeyHex, 16));
uint8_t hexStr[16];
fromHex(hexStr, encryptionKeyHex, 16);
config->setMeterEncryptionKey(hexStr);
}
printD("Meter 8");
String authenticationKeyHex = server.arg("meterAuthenticationKey");
if(!authenticationKeyHex.isEmpty()) {
authenticationKeyHex.replace("0x", "");
config->setMeterAuthenticationKey(fromHex(authenticationKeyHex, 16));
uint8_t hexStr[16];
fromHex(hexStr, encryptionKeyHex, 16);
config->setMeterAuthenticationKey(hexStr);
}
}

2
src/web/AmsWebServer.h
View File

@ -107,7 +107,7 @@ private:
void notFound();
String toHex(uint8_t* in, uint8_t size);
uint8_t* fromHex(String in, uint8_t size);
void fromHex(uint8_t *out, String in, uint8_t size);
void printD(String fmt, ...);
void printI(String fmt, ...);