#include "headers.h"

/* return a properly formatted request for any implemented protocol */
char *reqgen(uri *urip)
    {
    char *req;

    if(!strcmp("http", urip->proto) || !strcmp("https", urip->proto))
	{
	reqgen_http(urip->path, urip->fqdn, &req);

	if(!req)
	    {
	    return(NULL);
	    }

	return(req);
	}
    else if(!strcmp(urip->proto, "gopher"))
	{
	reqgen_gopher(urip->path, &req);

	if(!req)
	    {
	    return(NULL);
	    }

	return(req);
	}

    return(NULL);
    }

/* takes a data buffer and returns an integer corresponding to the server's response value */
/* if not applicable, return -1 */
/* if not found, return 0 */
int resp_parse(char *data, uri *uristruct)
    {
    if(strncmp("http", uristruct->proto, 4))
	{
	return(resp_parse_http(data));
	}
    else
	{
	return(-1);
	}
    
    }

/* return a pointer to a character array on the heap consisting of all bytes */
/* between start and end in str. */
char *substr_extract(const char *str, int start, int end)
    {
    int substr_len;
    char *substr;

    substr_len = (end - start);
    substr = NULL;

    /* account for zero index plus the nullterm */
    if( !(substr = calloc((substr_len + 1), sizeof(char))))
	{
	return(NULL);
	}

    memcpy(substr, str+start, substr_len);

    return(substr);
    }

char *buftolower(char *bufp)
    {
    int i;
    char *nbufp;
    nbufp = calloc(strlen(bufp), sizeof(char));
    
    for(i = 0; '\0' != bufp[i]; i++)
	{
	nbufp[i] = tolower(bufp[i]);
	}
    
    return(nbufp);
    }