/*#include <stdint.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>*/

#include "xendpw.h"

char *get_default_vnc_passwd(){

	FILE *fp = fopen("/etc/xen/xend-config.sxp", "r");

	char line[1024];
	char *passwd = NULL;
	
        /* error checking */
	if ( fp ) {
		while ( fgets(line, 1024, fp) != NULL ) {
			char *entry = NULL;

			if(!strstr(line, "vncpasswd"))
				continue;
			entry = strstr(line, "(");

			if(!entry)
				continue;
			else{
				//fprintf(stderr, "line: %s", &line);
				//fprintf(stderr, "entry: %s", entry);
			
				int len = entry-line;	
				if(len != 0){
					char *substring = (char*)malloc(sizeof(char)*len);
					memset(substring, 0, sizeof(char)*len);
					strncpy(substring, line, len);
					//fprintf(stderr, "substring (%s)\n\n", substring);
					if(strstr(substring, "#")){	
						free(substring);
						//fprintf(stderr, "comment found, moving on\n");
						continue;
					}
					free(substring);
				} else {
					//fprintf(stderr, "no comment involved\n\n");
				}

				char *data = NULL;
				data = strstr(entry, "'");
				if(data && data[1] != '\''){
					char *end = strrchr(data, '\'');
					int passlen = end-data;
					passwd = (char *)malloc(sizeof(char)*passlen+1);
					//move it past initial quote and
					//adjust length for previous operation
					strncpy(passwd, data+1, passlen-1);
					passwd[passlen] = 0;
					break;
				} 

				data = strstr(entry, "\"");
				if(data && data[1] != '"'){
					char *end = strrchr(data, '"');
					int passlen = end-data;
					passwd = (char *)malloc(sizeof(char)*passlen+1);
					//move it past initial quote and
					//adjust length for previous operation
					strncpy(passwd, data+1, passlen-1);
					passwd[passlen] = 0;
					break;
				}

				passwd = strdup("not set");
				
				break;
			}
		}
	}
	return passwd;
}