144 lines
3.8 KiB
C++
144 lines
3.8 KiB
C++
#include <SD.h>
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#include <SPI.h>
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#include <IPAddress.h>
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#include <IniFile.h>
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// The select pin used for the SD card
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//#define SD_SELECT 4
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#define SD_SELECT 22
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#define ETHERNET_SELECT 10
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void printErrorMessage(uint8_t e, bool eol = true)
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{
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switch (e) {
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case IniFile::errorNoError:
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Serial.print("no error");
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break;
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case IniFile::errorFileNotFound:
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Serial.print("file not found");
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break;
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case IniFile::errorFileNotOpen:
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Serial.print("file not open");
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break;
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case IniFile::errorBufferTooSmall:
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Serial.print("buffer too small");
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break;
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case IniFile::errorSeekError:
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Serial.print("seek error");
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break;
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case IniFile::errorSectionNotFound:
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Serial.print("section not found");
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break;
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case IniFile::errorKeyNotFound:
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Serial.print("key not found");
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break;
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case IniFile::errorEndOfFile:
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Serial.print("end of file");
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break;
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case IniFile::errorUnknownError:
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Serial.print("unknown error");
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break;
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default:
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Serial.print("unknown error value");
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break;
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}
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if (eol)
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Serial.println();
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}
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void setup()
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{
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// Configure all of the SPI select pins as outputs and make SPI
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// devices inactive, otherwise the earlier init routines may fail
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// for devices which have not yet been configured.
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pinMode(SD_SELECT, OUTPUT);
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digitalWrite(SD_SELECT, HIGH); // disable SD card
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pinMode(ETHERNET_SELECT, OUTPUT);
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digitalWrite(ETHERNET_SELECT, HIGH); // disable Ethernet
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const size_t bufferLen = 80;
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char buffer[bufferLen];
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const char *filename = "/net.ini";
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Serial.begin(9600);
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SPI.begin();
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if (!SD.begin(SD_SELECT))
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while (1)
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Serial.println("SD.begin() failed");
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IniFile ini(filename);
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if (!ini.open()) {
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Serial.print("Ini file ");
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Serial.print(filename);
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Serial.println(" does not exist");
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// Cannot do anything else
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while (1)
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;
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}
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Serial.println("Ini file exists");
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// Check the file is valid. This can be used to warn if any lines
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// are longer than the buffer.
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if (!ini.validate(buffer, bufferLen)) {
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Serial.print("ini file ");
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Serial.print(ini.getFilename());
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Serial.print(" not valid: ");
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printErrorMessage(ini.getError());
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// Cannot do anything else
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while (1)
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;
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}
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// Fetch a value from a key which is present
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if (ini.getValue("network", "mac", buffer, bufferLen)) {
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Serial.print("section 'network' has an entry 'mac' with value ");
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Serial.println(buffer);
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}
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else {
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Serial.print("Could not read 'mac' from section 'network', error was ");
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printErrorMessage(ini.getError());
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}
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// Try fetching a value from a missing key (but section is present)
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if (ini.getValue("network", "nosuchkey", buffer, bufferLen)) {
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Serial.print("section 'network' has an entry 'nosuchkey' with value ");
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Serial.println(buffer);
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}
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else {
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Serial.print("Could not read 'nosuchkey' from section 'network', error was ");
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printErrorMessage(ini.getError());
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}
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// Try fetching a key from a section which is not present
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if (ini.getValue("nosuchsection", "nosuchkey", buffer, bufferLen)) {
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Serial.print("section 'nosuchsection' has an entry 'nosuchkey' with value ");
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Serial.println(buffer);
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}
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else {
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Serial.print("Could not read 'nosuchkey' from section 'nosuchsection', error was ");
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printErrorMessage(ini.getError());
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}
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// Fetch a boolean value
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bool allowPut; // variable where result will be stored
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bool found = ini.getValue("/upload", "allow put", buffer, bufferLen, allowPut);
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if (found) {
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Serial.print("The value of 'allow put' in section '/upload' is ");
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// Print value, converting boolean to a string
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Serial.println(allowPut ? "TRUE" : "FALSE");
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}
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else {
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Serial.print("Could not get the value of 'allow put' in section '/upload': ");
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printErrorMessage(ini.getError());
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}
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}
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void loop()
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{
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}
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