static bool
expand( const char *path, char *absolute_path ) {
assert( path != NULL );
assert( absolute_path != NULL );
char buf[ 256 ];
char *result = realpath( path, absolute_path );
if ( result == NULL ) {
trema_fprintf( stderr, "Could not get the absolute path of %s: %s.\n", path, strerror_r( errno, buf, sizeof( buf ) ) );
return false;
}
return true;
}
/**
* Sets chibach home directory for your chibach session.
*/
void
set_chibach_home( void ) {
if ( getenv( CHIBACH_HOME ) == NULL ) {
setenv( CHIBACH_HOME, "/", 1 );
chibach_home = xstrdup( "/" );
}
else {
char absolute_path[ PATH_MAX ];
if ( !expand( getenv( CHIBACH_HOME ), absolute_path ) ) {
trema_fprintf( stderr, "Falling back CHIBACH_HOME to \"/\".\n" );
strncpy( absolute_path, "/", 2 );
}
setenv( CHIBACH_HOME, absolute_path, 1 );
chibach_home = xstrdup( absolute_path );
}
}
static void
log_file( int priority, const char *format, va_list ap ) {
struct timeval tv;
gettimeofday( &tv, NULL );
char now[ 26 ];
strftime( now, sizeof( now ), "%b %e %T", localtime( &tv.tv_sec ) ); // syslog message format look like
const char *priority_name = priority_name_from( priority );
char message[ max_message_length ];
va_list new_ap;
va_copy( new_ap, ap );
vsnprintf( message, max_message_length, format, new_ap );
trema_fprintf( fd, "%s.%03d [%s] %s\n", now, tv.tv_usec / 1000, priority_name, message );
fflush( fd );
}
/**
* Sets temporary directory for your Chibach session.
*/
void
set_chibach_tmp( void ) {
char path[ PATH_MAX ];
if ( getenv( CHIBACH_TMP ) == NULL ) {
const char *chibach_home = get_chibach_home();
if ( chibach_home[ strlen( chibach_home ) - 1 ] == '/' ) {
snprintf( path, PATH_MAX, "%stmp", chibach_home );
}
else {
snprintf( path, PATH_MAX, "%s/tmp", chibach_home );
}
path[ PATH_MAX - 1 ] = '\0';
}
else {
if ( !expand( getenv( CHIBACH_TMP ), path ) ) {
trema_fprintf( stderr, "Falling back CHIBACH_TMP to \"/tmp\".\n" );
strncpy( path, "/tmp", 5 );
}
}
chibach_tmp = xstrdup( path );
setenv( CHIBACH_TMP, chibach_tmp, 1 );
}
