YAIP/src/config.c

#include "config.h"

/*
 * Checks if the given path exists by calling stat().
 *
 */
static bool path_exists(const char *path) {
    struct stat buf;
    return (stat(path, &buf) == 0);
}

/*
 * This function resolves ~ in pathnames.
 */
static char* resolveTilde(const char *path) {
	static glob_t globbuf;

	int res = glob(path, GLOB_TILDE, NULL, &globbuf);
	/* no match, or many wildcard matches are bad */
	if (res == GLOB_NOMATCH)
		return strdup(path);
	else if (res != 0) {
		printf("glob() failed\n");
		return NULL;
	} else {
		return strdup(globbuf.gl_pathv[0]);
	}
	globfree(&globbuf);
}

/*
* Returns a pointer to a config object containing defaults
*/
Config* configDefaults(){
	Config *conf = malloc( sizeof( Config ) );
	conf->database = "proxy.sqlite";
	conf->port = 8080;
	conf->localConfig = "proxy.conf";
	conf->userConfig = getDefaultUserConfigLoc();
	
	return conf;
}

char* getConfigDir(){
	char *xdg_config_home;
	if ((xdg_config_home = getenv("XDG_CONFIG_HOME")) == NULL)
		xdg_config_home = resolveTilde("~/.config");
	
	return xdg_config_home;
}

char* getDefaultUserConfigLoc(){
	char *configDir = getConfigDir();
	char *configFile[strlen(configDir) + 11];

	memset(configFile, '\0', strlen(configDir) + 11);

	strcpy( configFile, configDir );

	strcat( configFile, configDir );

	return configFile;
}