bool InputRedirection::process() {
const int readlen = 5000;
char* readt = new char[readlen]; // local test variable, used to help exit inf. loop
// fill list with NULL zeroes. This clears list and prevents descrepancies.
// these @s define the end of the pre-recorded list.
for(int i=0; i<readlen; i++) readt[i] = 0x0;
cin.getline(readt,readlen);
CharString* Line = new CharString(readt,readlen);
//if(!(Line->isEmpty()) && Line->getSize() > 1){ // is the line not empty? Is it longer then 1?
handleInputLine(Line); // EXECUTE the line.
//}else{
// return true;
//}
return false;
}
void pollInput() {
if (mchready()) {
char ch = mgetch();
if (ch == '\r') {
mputs(NL);
*inputBufferEnd = 0;
handleInputLine();
resetInputBuffer();
} else {
*inputBufferEnd = ch;
inputBufferEnd++;
mputchar(ch);
if (inputBufferEnd == inputBuffer + INPUT_BUFFER_SIZE -1) {
mprintf(PSTR("ERROR: linebuffer overflow\n"));
resetInputBuffer();
}
}
}
}
int main(int argc, char *argv[]) {
// First of all, parse the IP:Port we need to connect to.
// Those are for now also the only two parameters permitted.
// If none passed, attempt to connect to default IP:Port.
const char *ipAddress = "127.0.0.1";
uint16_t portNumber = 4040;
if (argc != 1 && argc != 3) {
fprintf(stderr, "Incorrect argument number. Either pass none for default IP:Port"
"combination of 127.0.0.1:4040, or pass the IP followed by the Port.\n");
return (EXIT_FAILURE);
}
// If explicitly passed, parse arguments.
if (argc == 3) {
ipAddress = argv[1];
sscanf(argv[2], "%" SCNu16, &portNumber);
}
// Connect to the remote cAER config server.
sockFd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
if (sockFd < 0) {
fprintf(stderr, "Failed to create TCP socket.\n");
return (EXIT_FAILURE);
}
struct sockaddr_in configServerAddress;
memset(&configServerAddress, 0, sizeof(struct sockaddr_in));
configServerAddress.sin_family = AF_INET;
configServerAddress.sin_port = htons(portNumber);
inet_aton(ipAddress, &configServerAddress.sin_addr); // htonl() is implicit here.
if (connect(sockFd, (struct sockaddr *) &configServerAddress, sizeof(struct sockaddr_in)) < 0) {
fprintf(stderr, "Failed to connect to remote config server.\n");
return (EXIT_FAILURE);
}
// Create a shell prompt with the IP:Port displayed.
size_t shellPromptLength = (size_t) snprintf(NULL, 0, "cAER @ %s:%" PRIu16 " >> ", ipAddress, portNumber);
char shellPrompt[shellPromptLength + 1]; // +1 for terminating NUL byte.
snprintf(shellPrompt, shellPromptLength + 1, "cAER @ %s:%" PRIu16 " >> ", ipAddress, portNumber);
// Set our own command completion function.
linenoiseSetCompletionCallback(&handleCommandCompletion);
// Generate command history file path (in user home).
char commandHistoryFilePath[1024];
char *userHomeDir = getUserHomeDirectory();
snprintf(commandHistoryFilePath, 1024, "%s/.caerctl_history", userHomeDir);
free(userHomeDir);
// Load command history file.
linenoiseHistoryLoad(commandHistoryFilePath);
while (true) {
// Display prompt and read input (NOTE: remember to free input after use!).
char *inputLine = linenoise(shellPrompt);
// Check for EOF first.
if (inputLine == NULL) {
// Exit loop.
break;
}
// Add input to command history.
linenoiseHistoryAdd(inputLine);
// Then, after having added to history, check for termination commands.
if (strncmp(inputLine, "quit", 4) == 0 || strncmp(inputLine, "exit", 4) == 0) {
// Exit loop, free memory.
free(inputLine);
break;
}
// Try to generate a request, if there's any content.
size_t inputLineLength = strlen(inputLine);
if (inputLineLength > 0) {
handleInputLine(inputLine, inputLineLength);
}
// Free input after use.
free(inputLine);
}
// Close connection.
close(sockFd);
// Save command history file.
linenoiseHistorySave(commandHistoryFilePath);
return (EXIT_SUCCESS);
}
