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Properly terminate buffer

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This commit is contained in:
fvanroie 2020-11-12 20:52:22 +01:00
parent a2a55ccdb8
commit e021978294
1 changed files with 15 additions and 11 deletions
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26
src/hasp_telnet.cpp
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@ -38,12 +38,12 @@ extern char httpPassword[32];
uint8_t telnetLoginState = TELNET_UNAUTHENTICATED; uint8_t telnetLoginState = TELNET_UNAUTHENTICATED;
// WiFiClient telnetClient; // WiFiClient telnetClient;
// static WiFiServer * telnetServer; // static WiFiServer * telnetServer;
uint16_t telnetPort = 23; uint16_t telnetPort = 23;
bool telnetInCommandMode = false; bool telnetInCommandMode = false;
uint8_t telnetEnabled = true; // Enable telnet debug output uint8_t telnetEnabled = true; // Enable telnet debug output
uint8_t telnetLoginAttempt = 0; // Initial attempt uint8_t telnetLoginAttempt = 0; // Initial attempt
uint8_t telnetInputIndex = 0; // Empty buffer uint8_t telnetInputIndex = 0; // Empty buffer
char telnetInputBuffer[128]; char telnetInputBuffer[128] = "";
void telnetClientDisconnect() void telnetClientDisconnect()
{ {
@ -113,7 +113,7 @@ void telnetProcessCommand(char ch)
} }
} }
static void telnetProcessLine() static inline void telnetProcessLine()
{ {
telnetInputBuffer[telnetInputIndex] = 0; // null terminate our char array telnetInputBuffer[telnetInputIndex] = 0; // null terminate our char array
@ -159,17 +159,17 @@ static void telnetProcessLine()
telnetInputIndex = 0; // reset input buffer index telnetInputIndex = 0; // reset input buffer index
} }
static void telnetProcessData(char ch) static inline void telnetProcessData(char ch)
{ {
switch(ch) { switch(ch) {
case 10: case 10: // Linefeed
telnetInputIndex = 0; telnetInputIndex = 0;
break; break;
case 8: // Backspace case 8: // Backspace
if(telnetInputIndex > 0) telnetInputIndex--; if(telnetInputIndex > 0) telnetInputIndex--;
break; break;
case 13: case 13: // Cariage Return
telnetProcessLine(); telnetProcessLine();
break; break;
case 32 ... 250: case 32 ... 250:
@ -179,9 +179,13 @@ static void telnetProcessData(char ch)
// If we have room left in our buffer add the current byte // If we have room left in our buffer add the current byte
if(telnetInputIndex < sizeof(telnetInputBuffer) - 1) { if(telnetInputIndex < sizeof(telnetInputBuffer) - 1) {
telnetInputBuffer[telnetInputIndex++] = ch; telnetInputBuffer[telnetInputIndex++] = ch;
// telnetInputIndex++;
} }
} }
// Properly terminate buffer string
if(telnetInputIndex < sizeof(telnetInputBuffer)) {
telnetInputBuffer[telnetInputIndex] = 0;
}
} }
static inline void telnetProcessCharacter(char ch) static inline void telnetProcessCharacter(char ch)