mirror of
https://github.com/ChronosX88/netsukuku.git
synced 2024-11-22 10:12:18 +00:00
Ntk-console: Stop using fixed buffer width.
* Detect end of string in console and act on that. * Open console connection on startup * Terminate console connection on exit
This commit is contained in:
Alexander von Gluck IV
parent
3a842c2d4c
commit
bc3f496788
@ -1,29 +1,11 @@
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#include "Netsukuku-Console.h"
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#include <unistd.h>
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char response[BUFFER_LENGTH];
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void usage();
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void clean_up();
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typedef enum {
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COMMAND_HELP = 0x100,
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COMMAND_UPTIME,
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COMMAND_KILL,
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COMMAND_VERSION,
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COMMAND_INETCONN,
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COMMAND_CURIFS,
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COMMAND_CURIFSCT,
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COMMAND_CURQSPNID,
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COMMAND_CURIP,
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COMMAND_CURNODE,
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COMMAND_IFS,
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COMMAND_IFSCT,
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COMMAND_QUIT,
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COMMAND_CONSUPTIME,
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} command_t;
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const struct supported_commands {
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command_t id;
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@ -69,21 +51,28 @@ command_parse(char *request)
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}
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void
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response_cleanup(char response[BUFFER_LENGTH])
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static int
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request_receive(int sock, char message[], int max)
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{
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char remove = 'a';
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char* c;
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char* pPosition;
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while((pPosition = strchr(response, 'a')) != NULL) {
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if ((c = index(response, remove)) != NULL) {
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size_t len_left = sizeof(response) - (c+1-response);
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memmove(c, c+1, len_left);
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}
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int total = 0;
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const int bsize = 1024;
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char buffer[bsize+1];
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int read = bsize;
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message[0] = 0; // initialize for strcat()
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while(read == bsize) {
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read = recv(sock, buffer, bsize, 0);
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if(read < 0)
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return -1; // error, bail out
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total += read;
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if(total > max)
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return -2; // overflow
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buffer[read] = 0;
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strcat(message, buffer);
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}
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printf("Sent and received Successfully!\n The Response was: %s", response);
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return total;
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}
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@ -91,37 +80,28 @@ response_cleanup(char response[BUFFER_LENGTH])
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void
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ntkd_request(char *request)
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{
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rc = connect(sockfd, (struct sockaddr *)&serveraddr, sizeof(serveraddr));
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if (rc < 0) {
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perror("connect() failed");
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if (sockfd <= 0) {
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perror("ntkd connection closed unexpectedly!\n");
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exit(-1);
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}
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int request_length = strlen(request);
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memset(request, 'a', BUFFER_LENGTH - request_length);
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rc = send(sockfd, request, sizeof(request), 0);
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int request_length = strlen(request) - 1;
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request[request_length] = '\0';
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printf("request: '%s'\n", request);
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rc = send(sockfd, request, request_length, 0);
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if (rc < 0) {
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perror("send() failed");
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exit(-1);
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}
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bytesReceived = 0;
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while (bytesReceived < BUFFER_LENGTH) {
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rc = recv(sockfd, & response[bytesReceived],
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BUFFER_LENGTH - bytesReceived, 0);
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if (rc < 0) {
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perror("recv() failed");
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exit(-1);
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}
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else if (rc == 0) {
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printf("The server closed the connection\n");
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request_receive(sockfd, response, BUFFER_LENGTH);
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if (rc < 0) {
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perror("recv() failed");
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exit(-1);
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}
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/* Increment the number of bytes that have been received so far */
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bytesReceived += rc;
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}
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response_cleanup(response);
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printf("%s\n", response);
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}
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@ -137,6 +117,28 @@ opensocket(void)
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memset(&serveraddr, 0, sizeof(serveraddr));
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serveraddr.sun_family = AF_UNIX;
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strcpy(serveraddr.sun_path, SERVER_PATH);
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rc = connect(sockfd, (struct sockaddr *)&serveraddr, sizeof(serveraddr));
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if (rc < 0) {
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perror("connect() failed");
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exit(-1);
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}
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printf("ntkd console connection opened successfully.\n");
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}
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void
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closesocket(void)
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{
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const int optVal = 1;
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const socklen_t optLen = sizeof(optVal);
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setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, (void*) &optVal, optLen);
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if (sockfd >= 0)
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close(sockfd);
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printf("ntkd console connection closed.\n");
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}
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@ -175,10 +177,10 @@ console_uptime(void)
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}
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int
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static void
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millisleep(unsigned ms)
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{
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return usleep(1000 * ms);
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usleep(1000 * ms);
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}
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@ -189,7 +191,7 @@ console(char* request)
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switch (commandID) {
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case COMMAND_QUIT:
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clean_up();
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closesocket();
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exit(0);
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case COMMAND_UPTIME:
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case COMMAND_INETCONN:
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@ -211,6 +213,7 @@ console(char* request)
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console_uptime();
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break;
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case COMMAND_KILL:
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closesocket();
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system("ntkd -k");
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break;
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case COMMAND_HELP:
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@ -234,61 +237,28 @@ main(void)
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uptime_month = timeinfo->tm_mon;
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uptime_year = timeinfo->tm_year;
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opensocket();
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printf("This is the Netsukuku Console, Please type 'help' for more information.\n");
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char* request = (char*)malloc(BUFFER_LENGTH);
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opensocket();
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do {
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printf("\n>");
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printf("\n> ");
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fgets(request, 16, stdin);
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fflush(stdin);
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console(request);
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} while(FALSE);
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memset(request, 0, BUFFER_LENGTH);
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} while(TRUE);
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closesocket();
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clean_up();
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return 0;
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}
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void usage(void) {
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printf("Usage\n"
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" uptime Returns the time when ntkd finished the hooking,\n"
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" to get the the actual uptime just do)\n"
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" time(0)-me.uptime \n"
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" help Shows this\n"
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" kill Kills the running instance of netsukuku with SIGINT\n\n"
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" version Shows the running version of the ntk-console, and ntkd.\n"
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" inet_connected If it is 1, Ntkd is connected to the Internet\n"
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" \n"
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" cur_ifs Lists all of the interfaces in cur_ifs\n"
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" cur_ifs_n Lists the number of interfaces present in `cur_ifs'\n"
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" cur_qspn_id The current qspn_id we are processing. "
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" It is cur_qspn_id[levels] big\n"
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" cur_ip Current IP address\n"
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" \n"
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" cur_node Current Node\n"
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" ifs Lists all of the interfaces in server_opt.ifs\n"
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" ifs_n Lists the number of interfaces present in server_opt.ifs\n"
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" quit Exits this program\n"
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" console_uptime Gets the uptime of this console\n");
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}
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void clean_up(void)
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{
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const int optVal = 1;
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const socklen_t optLen = sizeof(optVal);
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setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, (void*) &optVal, optLen);
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setsockopt(sockfd1, SOL_SOCKET, SO_REUSEADDR, (void*) &optVal, optLen);
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if (sockfd != -1)
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close(sockfd);
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if (sockfd1 != -1)
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close(sockfd1);
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unlink(SERVER_PATH);
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printf("Usage:\n");
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for (int i = 0; i < sizeof(kSupportedCommands)
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/ sizeof(kSupportedCommands[0]); i++) {
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printf(" %16s - %s\n", kSupportedCommands[i].command, kSupportedCommands[i].help);
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}
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}
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@ -12,10 +12,34 @@
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#include <time.h>
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#include <errno.h>
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#define SERVER_PATH "/tmp/ntk-console"
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#define BUFFER_LENGTH 250
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#define VERSION_STR "0.0.2"
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#define FALSE 0
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#define SERVER_PATH "/tmp/ntk-console"
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#define BUFFER_LENGTH 250
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#define VERSION_STR "0.0.2"
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#ifndef TRUE
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#define FALSE 0
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#define TRUE 1
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#endif
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typedef enum {
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COMMAND_HELP = 0x100,
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COMMAND_UPTIME,
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COMMAND_KILL,
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COMMAND_VERSION,
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COMMAND_INETCONN,
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COMMAND_CURIFS,
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COMMAND_CURIFSCT,
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COMMAND_CURQSPNID,
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COMMAND_CURIP,
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COMMAND_CURNODE,
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COMMAND_IFS,
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COMMAND_IFSCT,
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COMMAND_QUIT,
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COMMAND_CONSUPTIME,
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} command_t;
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int sockfd = -1, sockfd1 = -1;
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struct sockaddr_un serveraddr;
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@ -33,4 +57,11 @@ int uptime_year;
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int i;
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#endif /*NETSUKUKUCONSOLE_H*/
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void usage();
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void clean_up();
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void opensocket();
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void closesocket();
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#endif /*NETSUKUKUCONSOLE_H*/
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@ -9,9 +9,10 @@
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/* Constants used for the console bindings. */
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#define SERVER_PATH "/tmp/ntk-console"
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#define SERVER_PATH "/tmp/ntk-console"
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#define REQUEST_LENGTH 250
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#define FALSE 0
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#define FALSE 0
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#define TRUE 1
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/* Variable and structure defintions, sockfd refers to socket file descriptor
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* length refers to the required length of the requests that will be sent.
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@ -28,181 +29,167 @@ int rc, length;
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* unlinks the server path, etc. */
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void clean_up(void) {
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const int optVal = 1;
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const socklen_t optLen = sizeof(optVal);
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setsockopt(sockfd_1, SOL_SOCKET, SO_REUSEADDR, (void*) &optVal, optLen);
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setsockopt(sockfd_2, SOL_SOCKET, SO_REUSEADDR, (void*) &optVal, optLen);
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if (sockfd_1 != -1)
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close(sockfd_1);
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const int optVal = 1;
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const socklen_t optLen = sizeof(optVal);
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setsockopt(sockfd_1, SOL_SOCKET, SO_REUSEADDR, (void*) &optVal, optLen);
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setsockopt(sockfd_2, SOL_SOCKET, SO_REUSEADDR, (void*) &optVal, optLen);
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if (sockfd_1 != -1)
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close(sockfd_1);
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if (sockfd_2 != -1)
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close(sockfd_2);
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if (sockfd_2 != -1)
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close(sockfd_2);
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unlink(SERVER_PATH);
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}
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/* Creates an AF_UNIX socket and binds it to a local address. */
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void opensocket(void) {
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int stop_trying;
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sockfd_1 = socket(AF_UNIX, SOCK_STREAM, 0);
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if (sockfd_1 < 0) {
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perror("socket creation failed");
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exit(-1);
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}
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memset(&serveraddr, 0, sizeof(serveraddr));
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serveraddr.sun_family = AF_UNIX;
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strcpy(serveraddr.sun_path, SERVER_PATH);
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int stop_trying;
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sockfd_1 = socket(AF_UNIX, SOCK_STREAM, 0);
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if (sockfd_1 < 0) {
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perror("socket creation failed");
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exit(-1);
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}
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memset(&serveraddr, 0, sizeof(serveraddr));
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serveraddr.sun_family = AF_UNIX;
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strcpy(serveraddr.sun_path, SERVER_PATH);
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rc = bind(sockfd_1, (struct sockaddr *)&serveraddr, SUN_LEN(&serveraddr));
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if (rc < 0) {
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perror("bind() failed");
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clean_up();
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if(stop_trying >= 2) {
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perror("bind() failed");
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clean_up();
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opensocket();
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exit(-1);
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}
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stop_trying++;
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opensocket();
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}
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rc = bind(sockfd_1, (struct sockaddr *)&serveraddr, SUN_LEN(&serveraddr));
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if (rc < 0) {
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perror("bind() failed");
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clean_up();
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if(stop_trying >= 2) {
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perror("bind() failed");
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clean_up();
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opensocket();
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exit(-1);
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}
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stop_trying++;
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opensocket();
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}
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}
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/* Sends a parsed response to the ntk console client. */
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void send_response(char response[REQUEST_LENGTH], ...) {
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int response_length;
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response_length = (int)strlen(response);
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memset(response, 'a', REQUEST_LENGTH - response_length);
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rc = send(sockfd_2, response, sizeof(response), 0);
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if (rc < 0){
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perror("send() failed");
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exit(-1);
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}
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void
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send_response(char response[REQUEST_LENGTH], ...)
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{
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int response_length = (int)strlen(response);
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rc = send(sockfd_2, response, sizeof(response), 0);
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if (rc < 0){
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perror("send() failed");
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exit(-1);
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}
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}
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void request_cleanup(char unprocessed_request[REQUEST_LENGTH]) {
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char remove = 'a';
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char* c;
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int x;
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char* pPosition;
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while(pPosition = strchr(unprocessed_request, 'a') != NULL) {
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if ((c = index(unprocessed_request, remove)) != NULL) {
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size_t len_left = sizeof(unprocessed_request) - (c+1-unprocessed_request);
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memmove(c, c+1, len_left);
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}
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}
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printf("Cleaned Request is: %s", unprocessed_request);
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request_processing(unprocessed_request);
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}
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/* Parses the received request from the ntk console client
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* to data from ntkd structures such as: me
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* into a response for the ntk console client. */
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int request_processing(char unprocessed_request[REQUEST_LENGTH]) {
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if(strncmp(unprocessed_request,"uptime", (int)strlen(unprocessed_request)) == 0)
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send_response((char)time(0)-me.uptime);
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else if(strncmp(unprocessed_request,"version", (int)strlen(unprocessed_request)) == 0)
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send_response(VERSION_STR);
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else if(strncmp(unprocessed_request,"inet_connected", (int)strlen(unprocessed_request)) == 0)
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send_response((char)me.inet_connected);
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else if(strncmp(unprocessed_request,"cur_ifs", (int)strlen(unprocessed_request)) == 0)
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send_response((char)me.cur_ifs);
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else if(strncmp(unprocessed_request,"cur_ifs_n", (int)strlen(unprocessed_request)) == 0)
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send_response((char)me.cur_ifs_n);
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else if(strncmp(unprocessed_request,"cur_qspn_id", (int)strlen(unprocessed_request)) == 0)
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send_response((char)me.cur_qspn_id);
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else if(strncmp(unprocessed_request,"cur_ip", (int)strlen(unprocessed_request)) == 0)
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send_response((char)me.cur_ip.data);
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/*else if(strncmp(unprocessed_request,"cur_node", (int)strlen(unprocessed_request)) == 0)
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send_response(me.cur_node);
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else if(strncmp(unprocessed_request,"ifs", (int)strlen(unprocessed_request)) == 0)
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return 0;
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else if(strncmp(unprocessed_request,"ifs_n", (int)strlen(unprocessed_request)) == 0)
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return 0;*/
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send_response(unprocessed_request, " Is invalid or yet to be implemented.");
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return -1;
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int
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request_processing(char unprocessed_request[REQUEST_LENGTH])
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{
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if(strncmp(unprocessed_request,"uptime", (int)strlen(unprocessed_request)) == 0)
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send_response((char)time(0)-me.uptime);
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else if(strncmp(unprocessed_request,"version", (int)strlen(unprocessed_request)) == 0)
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send_response(VERSION_STR);
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else if(strncmp(unprocessed_request,"inet_connected", (int)strlen(unprocessed_request)) == 0)
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send_response((char)me.inet_connected);
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else if(strncmp(unprocessed_request,"cur_ifs", (int)strlen(unprocessed_request)) == 0)
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send_response((char)me.cur_ifs);
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|
||||
else if(strncmp(unprocessed_request,"cur_ifs_n", (int)strlen(unprocessed_request)) == 0)
|
||||
send_response((char)me.cur_ifs_n);
|
||||
|
||||
else if(strncmp(unprocessed_request,"cur_qspn_id", (int)strlen(unprocessed_request)) == 0)
|
||||
send_response((char)me.cur_qspn_id);
|
||||
|
||||
else if(strncmp(unprocessed_request,"cur_ip", (int)strlen(unprocessed_request)) == 0)
|
||||
send_response((char)me.cur_ip.data);
|
||||
|
||||
/*else if(strncmp(unprocessed_request,"cur_node", (int)strlen(unprocessed_request)) == 0)
|
||||
send_response(me.cur_node);
|
||||
|
||||
else if(strncmp(unprocessed_request,"ifs", (int)strlen(unprocessed_request)) == 0)
|
||||
return 0;
|
||||
|
||||
else if(strncmp(unprocessed_request,"ifs_n", (int)strlen(unprocessed_request)) == 0)
|
||||
return 0;*/
|
||||
send_response(unprocessed_request, " Is invalid or yet to be implemented.");
|
||||
return -1;
|
||||
}
|
||||
|
||||
/* Receives a request of 250 bytes from the ntk console client.
|
||||
* listen and accept are also in a while loop to allow for different
|
||||
* start times between the ntk console bindings and the ntk console client,
|
||||
* As well as restarting of the ntk console client. */
|
||||
void ntkd_request(void) {
|
||||
|
||||
char request[REQUEST_LENGTH];
|
||||
|
||||
do {
|
||||
|
||||
rc = listen(sockfd_1, 10);
|
||||
if (rc< 0) {
|
||||
perror("listen() failed");
|
||||
exit(-1);
|
||||
}
|
||||
|
||||
printf("Ready for client connect().\n");
|
||||
|
||||
sockfd_2 = accept(sockfd_1, NULL, NULL);
|
||||
if (sockfd_2 < 0) {
|
||||
perror("accept() failed");
|
||||
exit(-1);
|
||||
}
|
||||
|
||||
length = REQUEST_LENGTH;
|
||||
rc = setsockopt(sockfd_2, SOL_SOCKET, SO_RCVLOWAT,
|
||||
(char *)&length, sizeof(length));
|
||||
if (rc < 0) {
|
||||
perror("setsockopt(SO_RCVLOWAT) failed");
|
||||
exit(-1);
|
||||
}
|
||||
|
||||
rc = recv(sockfd_2, request, sizeof(request), 0);
|
||||
if (rc < 0) {
|
||||
perror("recv() failed");
|
||||
exit(-1);
|
||||
}
|
||||
|
||||
printf("%d bytes of data were received\n", rc);
|
||||
|
||||
if (rc == 0 || rc < sizeof(request)) {
|
||||
printf("The console client closed the connection before all of the\n");
|
||||
printf("data was sent\n");
|
||||
exit(-1);
|
||||
}
|
||||
|
||||
request_cleanup(request);
|
||||
} while(FALSE);
|
||||
|
||||
clean_up();
|
||||
|
||||
static int
|
||||
request_receive(int sock, char message[], int max)
|
||||
{
|
||||
int total = 0;
|
||||
const int bsize = 1024;
|
||||
char buffer[bsize+1];
|
||||
int read = bsize;
|
||||
|
||||
message[0] = 0; // initialize for strcat()
|
||||
|
||||
while(read == bsize) {
|
||||
read = recv(sock, buffer, bsize, 0);
|
||||
if(read < 0)
|
||||
return -1; // error, bail out
|
||||
total += read;
|
||||
if(total > max)
|
||||
return -2; // overflow
|
||||
buffer[read] = 0;
|
||||
strcat(message, buffer);
|
||||
}
|
||||
|
||||
return total;
|
||||
}
|
||||
|
||||
|
||||
void ntkd_request(void) {
|
||||
char request[REQUEST_LENGTH];
|
||||
|
||||
rc = listen(sockfd_1, 10);
|
||||
if (rc< 0) {
|
||||
perror("listen() failed");
|
||||
exit(-1);
|
||||
}
|
||||
|
||||
printf("Ready for client connect().\n");
|
||||
|
||||
do {
|
||||
sockfd_2 = accept(sockfd_1, NULL, NULL);
|
||||
if (sockfd_2 < 0) {
|
||||
perror("accept() failed");
|
||||
exit(-1);
|
||||
}
|
||||
|
||||
rc = request_receive(sockfd_2, request, REQUEST_LENGTH);
|
||||
if (rc < 0) {
|
||||
perror("recv() failed");
|
||||
exit(-1);
|
||||
}
|
||||
|
||||
printf("%d bytes of data were received\n", rc);
|
||||
|
||||
request_processing(request);
|
||||
} while(TRUE);
|
||||
|
||||
clean_up();
|
||||
}
|
||||
|
||||
void console_recv_send(void) {
|
||||
opensocket();
|
||||
ntkd_request();
|
||||
}
|
||||
opensocket();
|
||||
ntkd_request();
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user