[SOLVED] question about accept C function

errigour · 05-05-2022, 01:49 AM

Hey I am using a simple html server kind of and I have run into an issue where accept is triggered but recv doesn't recv data so recv halts the program? Is there any way to fix this problem without using select? The file is big but I can try to paste it here. Should be able to compile this source with gcc main.c.
main.c

Code:

#include <arpa/inet.h>
#include <netdb.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include <time.h>
#include <unistd.h>

#define KB 1024
#define MB 1048576
#define GIG 1073741824

#define BUF_SIZE KB

char http_not_found[] = "HTTP/1.0 404 Not Found\n\0";
char http_ok[] = "HTTP/1.0 200 OK\n\0";

char *getFileType(char *file);
long long int skipspaces(char **ptr);
long long int getstring(char **string, char *buffer, long long int size);
int send_data(int socket, char *format, ...);
void send_file(int socket, char *filepath);
void debug_string(char *string);

int main()
{
    int html_socket;
    struct sockaddr_in addr;
    struct sockaddr_in peer;
    struct hostent *host;
    struct in6_addr inAddr;
    char peerip[128];
    int peerlen;
    int running;

    time_t timenow;
    struct tm *timeinfo;
    time (&timenow);
    timeinfo = localtime(&timenow);
    char *header, *request, *path;
    char *temp, *iter;
    int connfd;
    char get[5], http[10];
    char buffer[BUF_SIZE];
    char *contentType;
    
    long long int i = 0;
    
    setbuf(stdout, NULL);
    
    header = (char*)malloc(BUF_SIZE);
    request = (char*)malloc(BUF_SIZE);
    path = (char*)malloc(BUF_SIZE);
 
    memset(&peerip, 0, 128);
    memset(header, 0, BUF_SIZE);
    memset(request, 0, BUF_SIZE);
    memset(path, 0, BUF_SIZE);
    memset(&get, 0, 5);
    memset(&http, 0, 10);
    memset(&buffer, 0, BUF_SIZE);
    memset(&addr, 0, sizeof(addr));
    memset(&peer, 0, sizeof(peer));
    
    addr.sin_family = AF_INET;
    addr.sin_addr.s_addr = INADDR_ANY;
    addr.sin_port = htons(80);
    
    html_socket = socket(AF_INET, SOCK_STREAM, 0);
    if(html_socket < 0){
        perror("Error creating socket!");
        exit(1);
    }
    printf("Socket created...\n");
    
    if (bind(html_socket, (struct sockaddr *)&addr, sizeof(addr)) < 0) {
        perror("Error binding socket to port!");
        exit(1);
    }
    printf("Binding done...\n");
    
    listen(html_socket, 0);
    printf("Listening to socket...\n");
    peerlen = sizeof(peer);
    
    running = 1;
    
    while(running) {
        if ( (connfd = accept(html_socket, (struct sockaddr *)&peer, &peerlen)) < 0) {
            printf("Got Here!\n");
            perror("Error accepting connection!");
            exit(1);
        }
        inet_ntop(AF_INET, &(peer.sin_addr), peerip, 128);
        inet_pton(AF_INET, peerip, &inAddr);
        host = gethostbyaddr(&inAddr, sizeof(inAddr), AF_INET);
        printf("---Connection received from: %s [IP= %s]---\n", host->h_name, peerip);
        
        //gets the request from the connection
        if (recv(connfd, request, 100, MSG_PEEK) <=0){
			close(connfd);
			continue;
		}
        if (recv(connfd, buffer, BUF_SIZE, 0)<=0){
            close(connfd);
            continue;
        }
        request[100] = 0;
        printf("--Recieved data in (buffer):\n%s\nEnd buffer--\n", buffer);

        printf("Processing request...\n");
        //parse request
        memset(&get, 0, 5);
        iter = request;
        getstring(&iter, get, 5);
        skipspaces(&iter);
        path[0] = 0;
        path[1] = 0;
        getstring(&iter, path, BUF_SIZE);
        skipspaces(&iter);
        getstring(&iter, http, 10);
        
        printf("get: %3s, path: %s, http: %s\n", get, path, http);
        contentType = getFileType(path+1);
        sprintf(header, "Date: %sHostname: Space:80\nLocation: %s\nContent-Type: %s\n\n\0", asctime(timeinfo), path, contentType);
        
        if(strncmp("/index.html\0", path, 12) == 0){
            send(connfd, http_ok, strlen(http_ok), 0); //Send OK
            send(connfd, header, strlen(header), 0);
            send_data(connfd,
                        "<html lang=\"en\">\n"
                        "<title>Space</title>\n"
                        "<head>\n"
                        "</head>\n"
                        "<body>\n"
                        "A pagan says, \"Finally, Hello world!\"<br>\n"
                        "<image src=\"favicon.ico\" alt=\"favicon.ico\" height=\"25\" width=\"25\">\n"
                        "<form method=\"post\" action=\"index.html\">\n"
                        "    <label for=\"email\">Username:</label><input type=\"text\" id=\"email\" name=\"email\" value=\"\"><br>\n"
                        "    <label for=\"pass\">Password:</label><input type=\"password\" id=\"pass\" name=\"pass\" value=\"\"><br>\n"
                        "<input type=\"submit\" value=\"Login\\Create\">\n"
                        "</form>\n"
                        "</body>\n"
                        "</html>\0");
        } else if (strncmp("/favicon.ico\0", path, 13) == 0){
            send(connfd, http_ok, strlen(http_ok), 0); // Send OK
            send(connfd, header, strlen(header), 0);
            send_file(connfd, path+1);
        }
        else {
            printf("Got here 3\n");
            send(connfd, http_not_found, strlen(http_not_found), 0);
            send_data(connfd,
                        "<html lang=\"en\">\n"
                        "<title></title>\n"
                        "<head>\n"
                        "</head>\n"
                        "<body style=\"text-align:center;\">\n"
                        "<br><br><br><br>%s"
                        "</body>\n"
                        "</html>\n", http_not_found);
        }

        buffer[0] = 0;
        get[0] = 0;
        path[0] = 0;
        http[0] = 0;
        printf("Processing completed...\n");
        close(connfd);
    }
    close(html_socket);
    free(header);
    free(request);
    free(path);
}

char *getFileType(char *file){
 char *temp;
 if ((temp = strstr(file, ".html")) != NULL) {
  return "text/html";
 } else if ((temp = strstr(file, ".pdf")) != NULL) {
  return "application/pdf";
 } else if ((temp = strstr(file, ".txt")) != NULL) {
  return "text/html";
 } else {
  return "Uknown";
 }
}

long long int skipspaces(char **ptr){
    long long int c = 0;
    while(**ptr == ' '&& **ptr != 0){
        (*ptr)++;
        c++;
    }
    return c;
}

long long int getstring(char **string, char *buffer, long long int size){
    long long int c = 0;
    while(**string != ' ' && **string != '\n' && **string !='\r' && (c<(size-1))){
        *buffer = **string;
        buffer++;
        (*string)++;
        c++;
    }
    *buffer = 0;
    return c;
}

int send_data(int socket, char *format, ...){
   va_list args;
   char buffer[KB];
   int ret;

   va_start(args, format);
   vsprintf(buffer, format, args);
   va_end(args);

   ret = send(socket, buffer, strlen(buffer), 0);
   
   return ret;
}

void send_file(int socket, char *filepath){
    FILE *fileptr;
    char buffer[KB];
    if ((fileptr = fopen(filepath, "r")) == NULL ) {
        send(socket, http_not_found, strlen(http_not_found), 0); //sends HTTP 404
    } else {
        memset(&buffer, 0, sizeof(buffer));
        while (!feof(fileptr)) { //sends the file
            fread(&buffer, sizeof(buffer)-1, 1, fileptr);
            send(socket, buffer, sizeof(buffer), 0);
            memset(&buffer, 0, sizeof(buffer));
        }
    }
    fclose(fileptr);
}

void debug_string(char *string){

    int i = 0;
    puts("**debug**");
    while(string[i]!=0)
    {
        printf("%X ", string[i++]);
    }
    printf("%X\n", string[i]);
    i=0;
    while(string[i]!=0)
    {
        printf("%2c ", string[i++]);
    }
    printf("%c\n", string[i]);
    puts("**debug**");
}

NevemTeve · 05-05-2022, 01:57 AM

The connected partner is not bound to send anything. If you don't wish to use asynchron-io with poll/select, you can use `inetd` to deal with networking.

errigour · 05-05-2022, 02:24 AM

I think i fixed my problem with these functions actually.

Code:

        int flags;
        flags = fcntl(connfd, F_GETFL);
        fcntl(connfd, F_SETFL, flags | O_NONBLOCK);

I just put those functions after the accept function and before the recv functions. If i did something wrong let me know but for now im gonna call this one solved. --not solved i shouldn't have assumed it was--

errigour · 05-05-2022, 02:25 AM

actually not solved I will have to look into your comment cause now its not recving any data, blah im such an idiot some times.

errigour · 05-05-2022, 02:29 AM

Quote:

Originally Posted by NevemTeve

The connected partner is not bound to send anything. If you don't wish to use asynchron-io with poll/select, you can use `inetd` to deal with networking.

How would i use inetd? I got no clue.

errigour · 05-05-2022, 03:30 AM

Ok screw it i just decided to use select then but for some reason recv is still blocking sometimes what am I doing wrong?

Code:

#include <arpa/inet.h>
#include <netdb.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include <time.h>
#include <unistd.h>

#define KB 1024
#define MB 1048576
#define GIG 1073741824

#define BUF_SIZE KB
#define MAX_CLIENTS 300

char http_not_found[] = "HTTP/1.0 404 Not Found\n\0";
char http_ok[] = "HTTP/1.0 200 OK\n\0";

char *getFileType(char *file);
long long int skipspaces(char **ptr);
long long int getstring(char **string, char *buffer, long long int size);
int send_data(int socket, char *format, ...);
void send_file(int socket, char *filepath);
void debug_string(char *string);

int main()
{
    fd_set readfds;
    int max_sd;
    int html_socket;
    int client_socket[MAX_CLIENTS];
    int sd;
    struct sockaddr_in addr;
    struct sockaddr_in peer;
    struct hostent *host;
    struct in6_addr inAddr;
    char peerip[128];
    int peerlen;
    int running;

    time_t timenow;
    struct tm *timeinfo;
    time (&timenow);
    timeinfo = localtime(&timenow);
    char *header, *request, *path;
    char *temp, *iter;
    int connfd;
    char get[5], http[10];
    char buffer[BUF_SIZE];
    char *contentType;
    
    long long int i = 0;
    struct timeval tv;
    
    setbuf(stdout, NULL);
    
    tv.tv_sec=0;
    tv.tv_usec=1;
    
    header = (char*)malloc(BUF_SIZE);
    request = (char*)malloc(BUF_SIZE);
    path = (char*)malloc(100);
 
 
    memset(&peerip, 0, 128);
    memset(header, 0, BUF_SIZE);
    memset(request, 0, BUF_SIZE);
    memset(path, 0, 100);
    memset(&get, 0, 5);
    memset(&http, 0, 10);
    memset(&buffer, 0, BUF_SIZE);
    memset(&addr, 0, sizeof(addr));
    memset(&peer, 0, sizeof(peer));
    
    addr.sin_family = AF_INET;
    addr.sin_addr.s_addr = INADDR_ANY;
    addr.sin_port = htons(80);
    
    html_socket = socket(AF_INET, SOCK_STREAM, 0);
    
    if(html_socket < 0){
        perror("Error creating socket!");
        exit(1);
    }
    printf("Socket created...\n");
    
    if (bind(html_socket, (struct sockaddr *)&addr, sizeof(addr)) < 0) {
        perror("Error binding socket to port!");
        exit(1);
    }
    printf("Binding done...\n");
    
    listen(html_socket, 0);
    printf("Listening to socket...\n");
    peerlen = sizeof(peer);
    
    running = 1;
    
    for(i=0;i<MAX_CLIENTS;i++)
    {
        client_socket[i] = 0;
    }
    
    while(running) {
        FD_ZERO(&readfds);
        FD_SET(html_socket, &readfds);
        max_sd = html_socket;
        
        for ( i = 0 ; i < MAX_CLIENTS ; i++)  
        {  
            //socket descriptor 
            sd = client_socket[i];  
                 
            //if valid socket descriptor then add to read list 
            if(sd > 0)  
                FD_SET( sd , &readfds);  
                 
            //highest file descriptor number, need it for the select function 
            if(sd > max_sd)  
                max_sd = sd;  
        }
        select(max_sd + 1, &readfds, NULL, NULL, &tv);
        
        printf("Im here!");
        
        if (FD_ISSET(html_socket, &readfds))
        {
            if ( (connfd = accept(html_socket, (struct sockaddr *)&peer, &peerlen)) < 0) {
                printf("Got Here!\n");
                perror("Error accepting connection!");
                exit(1);
            }
            inet_ntop(AF_INET, &(peer.sin_addr), peerip, 128);
            inet_pton(AF_INET, peerip, &inAddr);
            host = gethostbyaddr(&inAddr, sizeof(inAddr), AF_INET);
            printf("---Connection received from: %s [IP= %s]---\n", host->h_name, peerip);
            for(i=0;i<MAX_CLIENTS;i++)
                if(client_socket[i]==0){
                    client_socket[i] = connfd;
                    break;
                }
        }
        
        for (i=0;i<MAX_CLIENTS; i++)
        {
            sd = client_socket[i];
            
            if (FD_ISSET( sd , &readfds))  
            { 
                //gets the request from the connection
                recv(sd, request, 100, MSG_PEEK);
                if (recv(sd, buffer, BUF_SIZE, 0)<=0){
                    close(sd);
                    client_socket[i] = 0;
                    continue;
                }
                request[100] = 0;
                printf("--Recieved data in (buffer):\n%s\nEnd buffer--\n", buffer);

                printf("Processing request...\n");
                //parse request
                memset(&get, 0, 5);
                iter = request;
                getstring(&iter, get, 5);
                skipspaces(&iter);
                path[0] = 0;
                path[1] = 0;
                getstring(&iter, path, 100);
                skipspaces(&iter);
                getstring(&iter, http, 10);
                
                printf("get: %3s, path: %s, http: %s\n", get, path, http);
                contentType = getFileType(path+1);
                sprintf(header, "Date: %sHostname: Space:80\nLocation: %s\nContent-Type: %s\n\n\0", asctime(timeinfo), path, contentType);
                
                if(strncmp("/index.html\0", path, 12) == 0){
                    send(sd, http_ok, strlen(http_ok), 0); //Send OK
                    send(sd, header, strlen(header), 0);
                    send_data(sd,
                                "<html lang=\"en\">\n"
                                "<title>Space</title>\n"
                                "<head>\n"
                                "</head>\n"
                                "<body>\n"
                                "A pagan says, \"Finally, Hello world!\"<br>\n"
                                "<image src=\"favicon.ico\" alt=\"favicon.ico\" height=\"25\" width=\"25\">\n"
                                "<form method=\"post\" action=\"index.html\">\n"
                                "    <label for=\"email\">Username:</label><input type=\"text\" id=\"email\" name=\"email\" value=\"\"><br>\n"
                                "    <label for=\"pass\">Password:</label><input type=\"password\" id=\"pass\" name=\"pass\" value=\"\"><br>\n"
                                "<input type=\"submit\" value=\"Login\\Create\">\n"
                                "</form>\n"
                                "</body>\n"
                                "</html>\0");
                } else if (strncmp("/favicon.ico\0", path, 13) == 0){
                    send(sd, http_ok, strlen(http_ok), 0); // Send OK
                    send(sd, header, strlen(header), 0);
                    send_file(sd, path+1);
                }
                else {
                    send(sd, http_not_found, strlen(http_not_found), 0);
                    send_data(sd,
                                "<html lang=\"en\">\n"
                                "<title></title>\n"
                                "<head>\n"
                                "</head>\n"
                                "<body style=\"text-align:center;\">\n"
                                "<br><br><br><br>%s"
                                "</body>\n"
                                "</html>\n", http_not_found);
                }

                buffer[0] = 0;
                get[0] = 0;
                path[0] = 0;
                http[0] = 0;
                printf("Processing completed...\n");
                close(connfd);
                client_socket[i]=0;
            }
        }
    }
    close(html_socket);
    free(header);
    free(request);
    free(path);
}

char *getFileType(char *file){
 char *temp;
 if ((temp = strstr(file, ".html")) != NULL) {
  return "text/html";
 } else if ((temp = strstr(file, ".pdf")) != NULL) {
  return "application/pdf";
 } else if ((temp = strstr(file, ".txt")) != NULL) {
  return "text/html";
 } else {
  return "Uknown";
 }
}

long long int skipspaces(char **ptr){
    long long int c = 0;
    while(**ptr == ' '&& **ptr != 0){
        (*ptr)++;
        c++;
    }
    return c;
}

long long int getstring(char **string, char *buffer, long long int size){
    long long int c = 0;
    while(**string != ' ' && **string != '\n' && **string !='\r' && (c<(size-1))){
        *buffer = **string;
        buffer++;
        (*string)++;
        c++;
    }
    *buffer = 0;
    return c;
}

int send_data(int socket, char *format, ...){
   va_list args;
   char buffer[KB];
   int ret;

   va_start(args, format);
   vsprintf(buffer, format, args);
   va_end(args);

   ret = send(socket, buffer, strlen(buffer), 0);
   
   return ret;
}

void send_file(int socket, char *filepath){
    FILE *fileptr;
    char buffer[KB];
    if ((fileptr = fopen(filepath, "r")) == NULL ) {
        send(socket, http_not_found, strlen(http_not_found), 0); //sends HTTP 404
    } else {
        memset(&buffer, 0, sizeof(buffer));
        while (!feof(fileptr)) { //sends the file
            fread(&buffer, sizeof(buffer)-1, 1, fileptr);
            send(socket, buffer, sizeof(buffer), 0);
            memset(&buffer, 0, sizeof(buffer));
        }
    }
    fclose(fileptr);
}

void debug_string(char *string){

    int i = 0;
    puts("**debug**");
    while(string[i]!=0)
    {
        printf("%X ", string[i++]);
    }
    printf("%X\n", string[i]);
    i=0;
    while(string[i]!=0)
    {
        printf("%2c ", string[i++]);
    }
    printf("%c\n", string[i]);
    puts("**debug**");
}

errigour · 05-05-2022, 03:54 AM

omg I think it was just a simple error forget to change the socket i was disconnecting. it seems to be working now. If it doesn't give me any problems i will mark this as solved and post the working cool html server skeleton.

errigour · 05-05-2022, 04:06 AM

Ok thank you for an alternative @NevemTeve it was a good answer to my original question. Here is a working base for anyone that wants to build an html game. It should compile with gcc main.c if you saved the code into a file called main.c. Of course it needs a lot of work to be a game it could be a good start though.

Code:

#include <arpa/inet.h>
#include <netdb.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include <time.h>
#include <unistd.h>

#define KB 1024
#define MB 1048576
#define GIG 1073741824

#define BUF_SIZE KB
#define MAX_CLIENTS 300

char http_not_found[] = "HTTP/1.0 404 Not Found\n\0";
char http_ok[] = "HTTP/1.0 200 OK\n\0";

char *getFileType(char *file);
long long int skipspaces(char **ptr);
long long int getstring(char **string, char *buffer, long long int size);
int send_data(int socket, char *format, ...);
void send_file(int socket, char *filepath);
void debug_string(char *string);

int main()
{
    fd_set readfds;
    int max_sd;
    int html_socket;
    int client_socket[MAX_CLIENTS];
    int sd;
    struct sockaddr_in addr;
    struct sockaddr_in peer;
    struct hostent *host;
    struct in6_addr inAddr;
    char peerip[128];
    int peerlen;
    int running;

    time_t timenow;
    struct tm *timeinfo;
    time (&timenow);
    timeinfo = localtime(&timenow);
    char *header, *request, *path;
    char *temp, *iter;
    int connfd;
    char get[5], http[10];
    char buffer[BUF_SIZE];
    char *contentType;
    
    long long int i = 0;
    struct timeval tv;
    
    setbuf(stdout, NULL);
    
    tv.tv_sec=0;
    tv.tv_usec=1;
    
    header = (char*)malloc(BUF_SIZE);
    request = (char*)malloc(BUF_SIZE);
    path = (char*)malloc(100);
 
 
    memset(&peerip, 0, 128);
    memset(header, 0, BUF_SIZE);
    memset(request, 0, BUF_SIZE);
    memset(path, 0, 100);
    memset(&get, 0, 5);
    memset(&http, 0, 10);
    memset(&buffer, 0, BUF_SIZE);
    memset(&addr, 0, sizeof(addr));
    memset(&peer, 0, sizeof(peer));
    
    addr.sin_family = AF_INET;
    addr.sin_addr.s_addr = INADDR_ANY;
    addr.sin_port = htons(80);
    
    html_socket = socket(AF_INET, SOCK_STREAM, 0);
    
    if(html_socket < 0){
        perror("Error creating socket!");
        exit(1);
    }
    printf("Socket created...\n");
    
    if (bind(html_socket, (struct sockaddr *)&addr, sizeof(addr)) < 0) {
        perror("Error binding socket to port!");
        exit(1);
    }
    printf("Binding done...\n");
    
    listen(html_socket, 0);
    printf("Listening to socket...\n");
    peerlen = sizeof(peer);
    
    running = 1;
    
    for(i=0;i<MAX_CLIENTS;i++)
    {
        client_socket[i] = 0;
    }
    
    while(running) {
        FD_ZERO(&readfds);
        FD_SET(html_socket, &readfds);
        max_sd = html_socket;
        
        for ( i = 0 ; i < MAX_CLIENTS ; i++)  
        {  
            //socket descriptor 
            sd = client_socket[i];  
                 
            //if valid socket descriptor then add to read list 
            if(sd > 0)  
                FD_SET( sd , &readfds);  
                 
            //highest file descriptor number, need it for the select function 
            if(sd > max_sd)  
                max_sd = sd;  
        }
        
        select(max_sd + 1, &readfds, NULL, NULL, &tv);
        
        if (FD_ISSET(html_socket, &readfds))
        {
            if ( (connfd = accept(html_socket, (struct sockaddr *)&peer, &peerlen)) < 0) {
                printf("Got Here!\n");
                perror("Error accepting connection!");
                exit(1);
            }
            inet_ntop(AF_INET, &(peer.sin_addr), peerip, 128);
            inet_pton(AF_INET, peerip, &inAddr);
            host = gethostbyaddr(&inAddr, sizeof(inAddr), AF_INET);
            printf("---Connection received from: %s [IP= %s]---\n", host->h_name, peerip);
            for(i=0;i<MAX_CLIENTS;i++)
                if(client_socket[i]==0){
                    client_socket[i] = connfd;
                    break;
                }
        }
        
        for (i=0;i<MAX_CLIENTS; i++)
        {
            sd = client_socket[i];
            
            if (FD_ISSET( sd , &readfds))  
            { 
                //gets the request from the connection
                recv(sd, request, 100, MSG_PEEK);
                if (recv(sd, buffer, BUF_SIZE, 0)<=0){
                    close(sd);
                    client_socket[i] = 0;
                    continue;
                }
                request[100] = 0;
                printf("--Recieved data in (buffer):\n%s\nEnd buffer--\n", buffer);

                printf("Processing request...\n");
                //parse request
                memset(&get, 0, 5);
                iter = request;
                getstring(&iter, get, 5);
                skipspaces(&iter);
                path[0] = 0;
                path[1] = 0;
                getstring(&iter, path, 100);
                skipspaces(&iter);
                getstring(&iter, http, 10);
                
                printf("get: %3s, path: %s, http: %s\n", get, path, http);
                contentType = getFileType(path+1);
                sprintf(header, "Date: %sHostname: Space:80\nLocation: %s\nContent-Type: %s\n\n\0", asctime(timeinfo), path, contentType);
                
                if(strncmp("/index.html\0", path, 12) == 0){
                    send(sd, http_ok, strlen(http_ok), 0); //Send OK
                    send(sd, header, strlen(header), 0);
                    send_data(sd,
                                "<html lang=\"en\">\n"
                                "<title>Space</title>\n"
                                "<head>\n"
                                "</head>\n"
                                "<body>\n"
                                "A pagan says, \"Finally, Hello world!\"<br>\n"
                                "<image src=\"favicon.ico\" alt=\"favicon.ico\" height=\"25\" width=\"25\">\n"
                                "<form method=\"post\" action=\"index.html\">\n"
                                "    <label for=\"email\">Username:</label><input type=\"text\" id=\"email\" name=\"email\" value=\"\"><br>\n"
                                "    <label for=\"pass\">Password:</label><input type=\"password\" id=\"pass\" name=\"pass\" value=\"\"><br>\n"
                                "<input type=\"submit\" value=\"Login\\Create\">\n"
                                "</form>\n"
                                "</body>\n"
                                "</html>\0");
                } else if (strncmp("/favicon.ico\0", path, 13) == 0){
                    send(sd, http_ok, strlen(http_ok), 0); // Send OK
                    send(sd, header, strlen(header), 0);
                    send_file(sd, path+1);
                }
                else {
                    send(sd, http_not_found, strlen(http_not_found), 0);
                    send_data(sd,
                                "<html lang=\"en\">\n"
                                "<title></title>\n"
                                "<head>\n"
                                "</head>\n"
                                "<body style=\"text-align:center;\">\n"
                                "<br><br><br><br>%s"
                                "</body>\n"
                                "</html>\n", http_not_found);
                }

                buffer[0] = 0;
                get[0] = 0;
                path[0] = 0;
                http[0] = 0;
                printf("Processing completed...\n");
                close(sd);
                client_socket[i]=0;
            }
        }
    }
    close(html_socket);
    free(header);
    free(request);
    free(path);
}

char *getFileType(char *file){
 char *temp;
 if ((temp = strstr(file, ".html")) != NULL) {
  return "text/html";
 } else if ((temp = strstr(file, ".pdf")) != NULL) {
  return "application/pdf";
 } else if ((temp = strstr(file, ".txt")) != NULL) {
  return "text/html";
 } else {
  return "Uknown";
 }
}

long long int skipspaces(char **ptr){
    long long int c = 0;
    while(**ptr == ' '&& **ptr != 0){
        (*ptr)++;
        c++;
    }
    return c;
}

long long int getstring(char **string, char *buffer, long long int size){
    long long int c = 0;
    while(**string != ' ' && **string != '\n' && **string !='\r' && (c<(size-1))){
        *buffer = **string;
        buffer++;
        (*string)++;
        c++;
    }
    *buffer = 0;
    return c;
}

int send_data(int socket, char *format, ...){
   va_list args;
   char buffer[KB];
   int ret;

   va_start(args, format);
   vsprintf(buffer, format, args);
   va_end(args);

   ret = send(socket, buffer, strlen(buffer), 0);
   
   return ret;
}

void send_file(int socket, char *filepath){
    FILE *fileptr;
    char buffer[KB];
    if ((fileptr = fopen(filepath, "r")) == NULL ) {
        send(socket, http_not_found, strlen(http_not_found), 0); //sends HTTP 404
    } else {
        memset(&buffer, 0, sizeof(buffer));
        while (!feof(fileptr)) { //sends the file
            fread(&buffer, sizeof(buffer)-1, 1, fileptr);
            send(socket, buffer, sizeof(buffer), 0);
            memset(&buffer, 0, sizeof(buffer));
        }
    }
    fclose(fileptr);
}

void debug_string(char *string){

    int i = 0;
    puts("**debug**");
    while(string[i]!=0)
    {
        printf("%X ", string[i++]);
    }
    printf("%X\n", string[i]);
    i=0;
    while(string[i]!=0)
    {
        printf("%2c ", string[i++]);
    }
    printf("%c\n", string[i]);
    puts("**debug**");
}