#include <stdio.h>#include <string.h>#include <stdlib.h>#include <unistd.h>#include <libxml/parser.h>#include "config.h"#include "configfile.h"#include "xmlhelp.h"#include "log.h"char *globalconfigs[] ={	"/etc/camsource.conf",	"/etc/defaults/camsource",	"/usr/local/etc/camsource.conf",	"/usr/local/etc/defaults/camsource",	"./camsource.conf",	NULL};char localconfig[256];char *ourconfig;xmlDocPtr configdoc;intconfig_init(char *customconfig){	char *s, **ss;		if (customconfig && !access(customconfig, R_OK))	{		ourconfig = customconfig;		goto found;	}		s = getenv("HOME");	if (s)		snprintf(localconfig, sizeof(localconfig) - 1, "%s/.camsource", s);		if (*localconfig && !access(localconfig, R_OK))	{		ourconfig = localconfig;		goto found;	}	else	{		for (ss = globalconfigs; *ss; ss++)		{			if (access(*ss, R_OK))				continue;			ourconfig = *ss;			goto found;		}	}	return -1;found:	return 0;}intconfig_load(){	xmlNodePtr node;		configdoc = xmlParseFile(ourconfig);	if (!configdoc)		return -1;		node = xml_root(configdoc);	if (!xml_isnode(node, "camsourceconfig"))	{		printf("Root node isn't 'camsourceconfig'\n");		xmlFreeDoc(configdoc);		configdoc = NULL;		return -1;	}		return 0;}char *config_homedir(char *dirspec){	char *env, *temp;		if (!dirspec)		return NULL;		if (strncmp(dirspec, "~/", 2))		return strdup(dirspec);			env = getenv("HOME");	if (!env)	{		log_log(NULL, "Invalid path spec: HOME not set. (Arg: \"%s\")\n", dirspec);		return strdup(dirspec);	}		temp = malloc(strlen(env) + strlen(dirspec));	sprintf(temp, "%s%s", env, dirspec + 1);		return temp;}