/**
* Print a character to syslog console
*
* @v character Character to be printed
*/
static void syslog_putchar ( int character ) {
int rc;
/* Ignore if we are already mid-logging */
if ( syslog_entered )
return;
/* Fill line buffer */
if ( line_putchar ( &syslog_line, character ) == 0 )
return;
/* Guard against re-entry */
syslog_entered = 1;
/* Send log message */
if ( ( rc = xfer_printf ( &syslogger, "<%d>ipxe: %s",
SYSLOG_PRIORITY ( SYSLOG_FACILITY,
SYSLOG_SEVERITY ),
syslog_buffer ) ) != 0 ) {
DBG ( "SYSLOG could not send log message: %s\n",
strerror ( rc ) );
}
/* Clear re-entry flag */
syslog_entered = 0;
}
/**
* Print a character to syslog console
*
* @v character Character to be printed
*/
static void syslog_putchar ( int character ) {
int rc;
/* Do nothing if we have no log server */
if ( ! logserver.st_family )
return;
/* Ignore if we are already mid-logging */
if ( syslog_entered )
return;
/* Strip ANSI escape sequences */
character = ansiesc_process ( &syslog_ansiesc_ctx, character );
if ( character < 0 )
return;
/* Ignore carriage return */
if ( character == '\r' )
return;
/* Treat newline as a terminator */
if ( character == '\n' )
character = 0;
/* Add character to buffer */
syslog_buffer[syslog_idx++] = character;
/* Do nothing more unless we reach end-of-line (or end-of-buffer) */
if ( ( character != 0 ) &&
( syslog_idx < ( sizeof ( syslog_buffer ) - 1 /* NUL */ ) ) ) {
return;
}
/* Reset to start of buffer */
syslog_idx = 0;
/* Guard against re-entry */
syslog_entered = 1;
/* Send log message */
if ( ( rc = xfer_printf ( &syslogger, "<%d>ipxe: %s",
SYSLOG_PRIORITY ( SYSLOG_FACILITY,
SYSLOG_SEVERITY ),
syslog_buffer ) ) != 0 ) {
DBG ( "SYSLOG could not send log message: %s\n",
strerror ( rc ) );
}
/* Clear re-entry flag */
syslog_entered = 0;
}