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- Added network utility "WHOIS"

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git-svn-id: svn://kolibrios.org@8515 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
superturbocat2001 2021-01-04 20:34:25 +00:00
parent 0c1a5475ab
commit 9c14226ab7
2 changed files with 336 additions and 0 deletions
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17
programs/network/whois/Makefile Executable file
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KTCC_DIR=../../develop/ktcc/trunk
NAME=whois
KTCC=$(KTCC_DIR)/bin/kos32-tcc
KPACK=kpack
SRC=whois.c
CFLAGS=-I $(KTCC_DIR)/libc/include
LIBS = -lck -lnetwork
all:
$(KTCC) $(CFLAGS) $(SRC) $(LIBS) -o $(NAME)
$(KPACK) $(NAME)
clean:
rm $(NAME)

319
programs/network/whois/whois.c Normal file
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/*
WHOIS port for KolibriOS (Adapted by turbocat2001).
The main code is taken from the site:
https://www.binarytides.com/whois-client-code-in-c-with-linux-sockets/
*/
#include <stdio.h>
#include <conio.h>
#include <string.h>
#include <stdlib.h>
#include <net/socket.h>
#include <net/network.h>
#define stdout (FILE*)0
FILE *out=stdout;
#ifdef DEBUG
FILE *out=stderr;
#endif
#define EXIT_SUCCESS 0
#define EXIT_FAILURE 1
#define perror(STR) debug_printf(STR);
int unix_fprintf(FILE* file, const char* format, ...)
{
va_list arg;
va_start (arg, format);
if(file==stdout){
return vprintf(format, arg);
}else if(file==stderr){
char log_board[300];
vsnprintf(log_board, sizeof log_board, format, arg);
debug_out_str(log_board);
return 0;
}else{
return vfprintf(file, format, arg);
}
}
void show_help()
{
puts("Usage: whois <host> [-f <file>]\n");
puts(" host Connect to server host");
puts(" -f file Redirecting output to file\n");
puts("Example: whois google.com -f my.txt");
}
int get_whois_data(char * , char **);
int hostname_to_ip(char * , char *);
int whois_query(char * , char * , char **);
char *str_replace(char *search , char *replace , char *subject );
char* str_copy(char*);
void start_console()
{
con_init_console_dll();
con_set_title("Whois");
}
int main(int argc , char *argv[])
{
networklib_init();
char *domain , *data = NULL;
int f_flag=0;
if(argc==2){
start_console();
domain=strdup(argv[1]);
}
else if(!strcmp(argv[2], "-f") && argc==4){
domain=strdup(argv[1]);
if((out=fopen(argv[3],"w"))==NULL){
printf("Error writing to file: '%s' !\n", argv[3]);
exit(0);
}
}else{
start_console();
show_help();
exit(0);
}
get_whois_data(domain , &data);
exit(0);
}
/*
Get the whois data of a domain
*/
int get_whois_data(char *domain , char **data)
{
char ext[1024] , *pch , *response = NULL , *response_2 = NULL , *wch , *dt;
//remove "http://" and "www."
domain = str_replace("http://" , "" , domain);
domain = str_replace("www." , "" , domain);
//get the extension , com , org , edu
dt = strdup(domain);
if(dt == NULL){
unix_fprintf(out, "strdup failed");
}
pch = (char*)strtok(dt , ".");
while(pch != NULL){
strcpy(ext , pch);
pch = strtok(NULL , ".");
}
// This will tell the whois server for the particular TLD like com , org
if( whois_query("whois.iana.org" , ext , &response) == EXIT_FAILURE){
unix_fprintf(out, "Whois query failed");
return 1;
}
unix_fprintf(out, "\n\nResponse is:\n\n");
unix_fprintf(out, "%s", response);
// Now analysze the response
pch = strtok(response , "\n");
while(pch != NULL){
// Check if whois line
wch = strstr(pch , "whois.");
if(wch != NULL){
break;
}
// Next line please
pch = strtok(NULL , "\n");
}
// Now we have the TLD whois server in wch , query again
//This will provide minimal whois information along with the parent whois server of the specific domain :)
free(response);
//This should not be necessary , but segmentation fault without this , why ?
response = NULL;
if(wch != NULL){
unix_fprintf(out, "\nTLD Whois server is : %s" , wch);
if( whois_query(wch , domain , &response) == EXIT_FAILURE){
unix_fprintf(out, "Whois query failed\n");
return EXIT_FAILURE;
}
}else{
unix_fprintf(out, "\nTLD whois server for %s not found\n" , ext);
return EXIT_SUCCESS;
}
response_2 = strdup(response);
// Again search for a whois server in this response. :)
pch = strtok(response , "\n");
while(pch != NULL){
// Check if whois line
wch = strstr(pch , "whois.");
if(wch != NULL){
break;
}
//Next line please
pch = strtok(NULL , "\n");
}
/*
If a registrar whois server is found then query it
*/
if(wch){
// Now we have the registrar whois server , this has the direct full information of the particular domain
// so lets query again
unix_fprintf(out, "\nRegistrar Whois server is : %s" , wch);
if( whois_query(wch , domain , &response) == EXIT_FAILURE ){
unix_fprintf(out, "Whois query failed");
}else{
unix_fprintf(out, "\n%s" , response);
}
}
/*
otherwise echo the output from the previous whois result
*/
else{
unix_fprintf(out, "%s" , response_2);
}
return 0;
}
/*
Perform a whois query to a server and record the response
*/
int whois_query(char *server , char *query , char **response)
{
char ip[32] , message[100] , buffer[1500];
int sock , read_size , total_size = 0;
int WHOIS_PORT = 43;
struct sockaddr dest;
sock = socket(AF_INET4 , SOCK_STREAM , IPPROTO_TCP);
//Prepare connection structures :)
memset( &dest , 0 , sizeof(dest) );
dest.sin_family = AF_INET;
server = str_copy(server);
server[strcspn(server, "\r\n")] = '\0';
unix_fprintf(out, "\nResolving: %s ...\n" , server);
if( hostname_to_ip(server , ip) == EXIT_FAILURE ){
unix_fprintf(out, "Failed\n");
return EXIT_FAILURE;
}
unix_fprintf(out, "Found ip: %s \n" , ip);
dest.sin_addr = inet_addr(ip);
dest.sin_port = PORT(WHOIS_PORT);
//Now connect to remote server
if(connect(sock , (const struct sockaddr*) &dest , sizeof(dest)) < 0){
perror("connect failed");
return EXIT_FAILURE;
}
//Now send some data or message
unix_fprintf(out, "\nQuerying for: %s ...\n" , query);
sprintf(message , "%s\r\n" , query);
if( send(sock , message , strlen(message) , 0) < 0){
perror("send failed");
return EXIT_FAILURE;
}
//Now receive the response
while((read_size = recv(sock, buffer, sizeof(buffer), 0))){
*response = realloc(*response , read_size + total_size);
if(*response == NULL){
unix_fprintf(out, "realloc failed");
return EXIT_FAILURE;
}
memcpy(*response + total_size , buffer , read_size);
total_size += read_size;
}
unix_fprintf(out, "Done\n");
//fflush(stdout);
*response = realloc(*response , total_size + 1);
*(*response + total_size) = '\0';
close(sock);
return EXIT_SUCCESS;
}
/*
Get the ip address of a given hostname
*/
int hostname_to_ip(char *hostname , char *ip)
{
struct addrinfo *addr_info;
char port_str[16]; sprintf(port_str, "%d", 80);
struct addrinfo hints;
memset(&hints, 0, sizeof(hints));
hints.ai_family = AF_UNSPEC; // IPv4 or IPv6 doesnt matter
hints.ai_socktype = SOCK_STREAM; // TCP stream sockets
if (getaddrinfo(hostname, port_str, 0, &addr_info) != 0) {
freeaddrinfo(addr_info);
return EXIT_FAILURE;
}else{
strcpy(ip, inet_ntoa(addr_info->ai_addr->sin_addr));
return EXIT_SUCCESS;
}
}
/*
Search and replace a string with another string , in a string
*/
char *str_replace(char *search , char *replace , char *subject)
{
char *p = NULL , *old = NULL , *new_subject = NULL ;
int c = 0 , search_size;
search_size = strlen(search);
//Count how many occurences
for(p = strstr(subject , search) ; p != NULL ; p = strstr(p + search_size , search)){
c++;
}
//Final size
c = ( strlen(replace) - search_size )*c + strlen(subject);
//New subject with new size
new_subject = malloc( c );
//Set it to blank
strcpy(new_subject , "");
//The start position
old = subject;
for(p = strstr(subject , search) ; p != NULL ; p = strstr(p + search_size , search)){
//move ahead and copy some text from original subject , from a certain position
strncpy(new_subject + strlen(new_subject) , old , p - old);
//move ahead and copy the replacement text
strcpy(new_subject + strlen(new_subject) , replace);
//The new start position after this search match
old = p + search_size;
}
//Copy the part after the last search match
strcpy(new_subject + strlen(new_subject) , old);
return new_subject;
}
char* str_copy(char *source)
{
char *copy = malloc(strlen(source) + 1);
if(copy){
strcpy(copy, source);
}
return copy;
}