summaryrefslogtreecommitdiff
path: root/src/sprintf_irc.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/sprintf_irc.c')
-rw-r--r--src/sprintf_irc.c472
1 files changed, 472 insertions, 0 deletions
diff --git a/src/sprintf_irc.c b/src/sprintf_irc.c
new file mode 100644
index 0000000..8a3ea56
--- /dev/null
+++ b/src/sprintf_irc.c
@@ -0,0 +1,472 @@
+/*
+ * ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
+ * sprintf_irc.c: Functions for printing to a string.
+ *
+ * Copyright (C) 2002 by the past and present ircd coders, and others.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ * USA
+ *
+ * $Id$
+ */
+
+#include "stdinc.h"
+#include "sprintf_irc.h"
+#include "irc_string.h"
+
+
+static const char atoi_tab[4000] = {
+ '0','0','0',0, '0','0','1',0, '0','0','2',0, '0','0','3',0, '0','0','4',0,
+ '0','0','5',0, '0','0','6',0, '0','0','7',0, '0','0','8',0, '0','0','9',0,
+ '0','1','0',0, '0','1','1',0, '0','1','2',0, '0','1','3',0, '0','1','4',0,
+ '0','1','5',0, '0','1','6',0, '0','1','7',0, '0','1','8',0, '0','1','9',0,
+ '0','2','0',0, '0','2','1',0, '0','2','2',0, '0','2','3',0, '0','2','4',0,
+ '0','2','5',0, '0','2','6',0, '0','2','7',0, '0','2','8',0, '0','2','9',0,
+ '0','3','0',0, '0','3','1',0, '0','3','2',0, '0','3','3',0, '0','3','4',0,
+ '0','3','5',0, '0','3','6',0, '0','3','7',0, '0','3','8',0, '0','3','9',0,
+ '0','4','0',0, '0','4','1',0, '0','4','2',0, '0','4','3',0, '0','4','4',0,
+ '0','4','5',0, '0','4','6',0, '0','4','7',0, '0','4','8',0, '0','4','9',0,
+ '0','5','0',0, '0','5','1',0, '0','5','2',0, '0','5','3',0, '0','5','4',0,
+ '0','5','5',0, '0','5','6',0, '0','5','7',0, '0','5','8',0, '0','5','9',0,
+ '0','6','0',0, '0','6','1',0, '0','6','2',0, '0','6','3',0, '0','6','4',0,
+ '0','6','5',0, '0','6','6',0, '0','6','7',0, '0','6','8',0, '0','6','9',0,
+ '0','7','0',0, '0','7','1',0, '0','7','2',0, '0','7','3',0, '0','7','4',0,
+ '0','7','5',0, '0','7','6',0, '0','7','7',0, '0','7','8',0, '0','7','9',0,
+ '0','8','0',0, '0','8','1',0, '0','8','2',0, '0','8','3',0, '0','8','4',0,
+ '0','8','5',0, '0','8','6',0, '0','8','7',0, '0','8','8',0, '0','8','9',0,
+ '0','9','0',0, '0','9','1',0, '0','9','2',0, '0','9','3',0, '0','9','4',0,
+ '0','9','5',0, '0','9','6',0, '0','9','7',0, '0','9','8',0, '0','9','9',0,
+ '1','0','0',0, '1','0','1',0, '1','0','2',0, '1','0','3',0, '1','0','4',0,
+ '1','0','5',0, '1','0','6',0, '1','0','7',0, '1','0','8',0, '1','0','9',0,
+ '1','1','0',0, '1','1','1',0, '1','1','2',0, '1','1','3',0, '1','1','4',0,
+ '1','1','5',0, '1','1','6',0, '1','1','7',0, '1','1','8',0, '1','1','9',0,
+ '1','2','0',0, '1','2','1',0, '1','2','2',0, '1','2','3',0, '1','2','4',0,
+ '1','2','5',0, '1','2','6',0, '1','2','7',0, '1','2','8',0, '1','2','9',0,
+ '1','3','0',0, '1','3','1',0, '1','3','2',0, '1','3','3',0, '1','3','4',0,
+ '1','3','5',0, '1','3','6',0, '1','3','7',0, '1','3','8',0, '1','3','9',0,
+ '1','4','0',0, '1','4','1',0, '1','4','2',0, '1','4','3',0, '1','4','4',0,
+ '1','4','5',0, '1','4','6',0, '1','4','7',0, '1','4','8',0, '1','4','9',0,
+ '1','5','0',0, '1','5','1',0, '1','5','2',0, '1','5','3',0, '1','5','4',0,
+ '1','5','5',0, '1','5','6',0, '1','5','7',0, '1','5','8',0, '1','5','9',0,
+ '1','6','0',0, '1','6','1',0, '1','6','2',0, '1','6','3',0, '1','6','4',0,
+ '1','6','5',0, '1','6','6',0, '1','6','7',0, '1','6','8',0, '1','6','9',0,
+ '1','7','0',0, '1','7','1',0, '1','7','2',0, '1','7','3',0, '1','7','4',0,
+ '1','7','5',0, '1','7','6',0, '1','7','7',0, '1','7','8',0, '1','7','9',0,
+ '1','8','0',0, '1','8','1',0, '1','8','2',0, '1','8','3',0, '1','8','4',0,
+ '1','8','5',0, '1','8','6',0, '1','8','7',0, '1','8','8',0, '1','8','9',0,
+ '1','9','0',0, '1','9','1',0, '1','9','2',0, '1','9','3',0, '1','9','4',0,
+ '1','9','5',0, '1','9','6',0, '1','9','7',0, '1','9','8',0, '1','9','9',0,
+ '2','0','0',0, '2','0','1',0, '2','0','2',0, '2','0','3',0, '2','0','4',0,
+ '2','0','5',0, '2','0','6',0, '2','0','7',0, '2','0','8',0, '2','0','9',0,
+ '2','1','0',0, '2','1','1',0, '2','1','2',0, '2','1','3',0, '2','1','4',0,
+ '2','1','5',0, '2','1','6',0, '2','1','7',0, '2','1','8',0, '2','1','9',0,
+ '2','2','0',0, '2','2','1',0, '2','2','2',0, '2','2','3',0, '2','2','4',0,
+ '2','2','5',0, '2','2','6',0, '2','2','7',0, '2','2','8',0, '2','2','9',0,
+ '2','3','0',0, '2','3','1',0, '2','3','2',0, '2','3','3',0, '2','3','4',0,
+ '2','3','5',0, '2','3','6',0, '2','3','7',0, '2','3','8',0, '2','3','9',0,
+ '2','4','0',0, '2','4','1',0, '2','4','2',0, '2','4','3',0, '2','4','4',0,
+ '2','4','5',0, '2','4','6',0, '2','4','7',0, '2','4','8',0, '2','4','9',0,
+ '2','5','0',0, '2','5','1',0, '2','5','2',0, '2','5','3',0, '2','5','4',0,
+ '2','5','5',0, '2','5','6',0, '2','5','7',0, '2','5','8',0, '2','5','9',0,
+ '2','6','0',0, '2','6','1',0, '2','6','2',0, '2','6','3',0, '2','6','4',0,
+ '2','6','5',0, '2','6','6',0, '2','6','7',0, '2','6','8',0, '2','6','9',0,
+ '2','7','0',0, '2','7','1',0, '2','7','2',0, '2','7','3',0, '2','7','4',0,
+ '2','7','5',0, '2','7','6',0, '2','7','7',0, '2','7','8',0, '2','7','9',0,
+ '2','8','0',0, '2','8','1',0, '2','8','2',0, '2','8','3',0, '2','8','4',0,
+ '2','8','5',0, '2','8','6',0, '2','8','7',0, '2','8','8',0, '2','8','9',0,
+ '2','9','0',0, '2','9','1',0, '2','9','2',0, '2','9','3',0, '2','9','4',0,
+ '2','9','5',0, '2','9','6',0, '2','9','7',0, '2','9','8',0, '2','9','9',0,
+ '3','0','0',0, '3','0','1',0, '3','0','2',0, '3','0','3',0, '3','0','4',0,
+ '3','0','5',0, '3','0','6',0, '3','0','7',0, '3','0','8',0, '3','0','9',0,
+ '3','1','0',0, '3','1','1',0, '3','1','2',0, '3','1','3',0, '3','1','4',0,
+ '3','1','5',0, '3','1','6',0, '3','1','7',0, '3','1','8',0, '3','1','9',0,
+ '3','2','0',0, '3','2','1',0, '3','2','2',0, '3','2','3',0, '3','2','4',0,
+ '3','2','5',0, '3','2','6',0, '3','2','7',0, '3','2','8',0, '3','2','9',0,
+ '3','3','0',0, '3','3','1',0, '3','3','2',0, '3','3','3',0, '3','3','4',0,
+ '3','3','5',0, '3','3','6',0, '3','3','7',0, '3','3','8',0, '3','3','9',0,
+ '3','4','0',0, '3','4','1',0, '3','4','2',0, '3','4','3',0, '3','4','4',0,
+ '3','4','5',0, '3','4','6',0, '3','4','7',0, '3','4','8',0, '3','4','9',0,
+ '3','5','0',0, '3','5','1',0, '3','5','2',0, '3','5','3',0, '3','5','4',0,
+ '3','5','5',0, '3','5','6',0, '3','5','7',0, '3','5','8',0, '3','5','9',0,
+ '3','6','0',0, '3','6','1',0, '3','6','2',0, '3','6','3',0, '3','6','4',0,
+ '3','6','5',0, '3','6','6',0, '3','6','7',0, '3','6','8',0, '3','6','9',0,
+ '3','7','0',0, '3','7','1',0, '3','7','2',0, '3','7','3',0, '3','7','4',0,
+ '3','7','5',0, '3','7','6',0, '3','7','7',0, '3','7','8',0, '3','7','9',0,
+ '3','8','0',0, '3','8','1',0, '3','8','2',0, '3','8','3',0, '3','8','4',0,
+ '3','8','5',0, '3','8','6',0, '3','8','7',0, '3','8','8',0, '3','8','9',0,
+ '3','9','0',0, '3','9','1',0, '3','9','2',0, '3','9','3',0, '3','9','4',0,
+ '3','9','5',0, '3','9','6',0, '3','9','7',0, '3','9','8',0, '3','9','9',0,
+ '4','0','0',0, '4','0','1',0, '4','0','2',0, '4','0','3',0, '4','0','4',0,
+ '4','0','5',0, '4','0','6',0, '4','0','7',0, '4','0','8',0, '4','0','9',0,
+ '4','1','0',0, '4','1','1',0, '4','1','2',0, '4','1','3',0, '4','1','4',0,
+ '4','1','5',0, '4','1','6',0, '4','1','7',0, '4','1','8',0, '4','1','9',0,
+ '4','2','0',0, '4','2','1',0, '4','2','2',0, '4','2','3',0, '4','2','4',0,
+ '4','2','5',0, '4','2','6',0, '4','2','7',0, '4','2','8',0, '4','2','9',0,
+ '4','3','0',0, '4','3','1',0, '4','3','2',0, '4','3','3',0, '4','3','4',0,
+ '4','3','5',0, '4','3','6',0, '4','3','7',0, '4','3','8',0, '4','3','9',0,
+ '4','4','0',0, '4','4','1',0, '4','4','2',0, '4','4','3',0, '4','4','4',0,
+ '4','4','5',0, '4','4','6',0, '4','4','7',0, '4','4','8',0, '4','4','9',0,
+ '4','5','0',0, '4','5','1',0, '4','5','2',0, '4','5','3',0, '4','5','4',0,
+ '4','5','5',0, '4','5','6',0, '4','5','7',0, '4','5','8',0, '4','5','9',0,
+ '4','6','0',0, '4','6','1',0, '4','6','2',0, '4','6','3',0, '4','6','4',0,
+ '4','6','5',0, '4','6','6',0, '4','6','7',0, '4','6','8',0, '4','6','9',0,
+ '4','7','0',0, '4','7','1',0, '4','7','2',0, '4','7','3',0, '4','7','4',0,
+ '4','7','5',0, '4','7','6',0, '4','7','7',0, '4','7','8',0, '4','7','9',0,
+ '4','8','0',0, '4','8','1',0, '4','8','2',0, '4','8','3',0, '4','8','4',0,
+ '4','8','5',0, '4','8','6',0, '4','8','7',0, '4','8','8',0, '4','8','9',0,
+ '4','9','0',0, '4','9','1',0, '4','9','2',0, '4','9','3',0, '4','9','4',0,
+ '4','9','5',0, '4','9','6',0, '4','9','7',0, '4','9','8',0, '4','9','9',0,
+ '5','0','0',0, '5','0','1',0, '5','0','2',0, '5','0','3',0, '5','0','4',0,
+ '5','0','5',0, '5','0','6',0, '5','0','7',0, '5','0','8',0, '5','0','9',0,
+ '5','1','0',0, '5','1','1',0, '5','1','2',0, '5','1','3',0, '5','1','4',0,
+ '5','1','5',0, '5','1','6',0, '5','1','7',0, '5','1','8',0, '5','1','9',0,
+ '5','2','0',0, '5','2','1',0, '5','2','2',0, '5','2','3',0, '5','2','4',0,
+ '5','2','5',0, '5','2','6',0, '5','2','7',0, '5','2','8',0, '5','2','9',0,
+ '5','3','0',0, '5','3','1',0, '5','3','2',0, '5','3','3',0, '5','3','4',0,
+ '5','3','5',0, '5','3','6',0, '5','3','7',0, '5','3','8',0, '5','3','9',0,
+ '5','4','0',0, '5','4','1',0, '5','4','2',0, '5','4','3',0, '5','4','4',0,
+ '5','4','5',0, '5','4','6',0, '5','4','7',0, '5','4','8',0, '5','4','9',0,
+ '5','5','0',0, '5','5','1',0, '5','5','2',0, '5','5','3',0, '5','5','4',0,
+ '5','5','5',0, '5','5','6',0, '5','5','7',0, '5','5','8',0, '5','5','9',0,
+ '5','6','0',0, '5','6','1',0, '5','6','2',0, '5','6','3',0, '5','6','4',0,
+ '5','6','5',0, '5','6','6',0, '5','6','7',0, '5','6','8',0, '5','6','9',0,
+ '5','7','0',0, '5','7','1',0, '5','7','2',0, '5','7','3',0, '5','7','4',0,
+ '5','7','5',0, '5','7','6',0, '5','7','7',0, '5','7','8',0, '5','7','9',0,
+ '5','8','0',0, '5','8','1',0, '5','8','2',0, '5','8','3',0, '5','8','4',0,
+ '5','8','5',0, '5','8','6',0, '5','8','7',0, '5','8','8',0, '5','8','9',0,
+ '5','9','0',0, '5','9','1',0, '5','9','2',0, '5','9','3',0, '5','9','4',0,
+ '5','9','5',0, '5','9','6',0, '5','9','7',0, '5','9','8',0, '5','9','9',0,
+ '6','0','0',0, '6','0','1',0, '6','0','2',0, '6','0','3',0, '6','0','4',0,
+ '6','0','5',0, '6','0','6',0, '6','0','7',0, '6','0','8',0, '6','0','9',0,
+ '6','1','0',0, '6','1','1',0, '6','1','2',0, '6','1','3',0, '6','1','4',0,
+ '6','1','5',0, '6','1','6',0, '6','1','7',0, '6','1','8',0, '6','1','9',0,
+ '6','2','0',0, '6','2','1',0, '6','2','2',0, '6','2','3',0, '6','2','4',0,
+ '6','2','5',0, '6','2','6',0, '6','2','7',0, '6','2','8',0, '6','2','9',0,
+ '6','3','0',0, '6','3','1',0, '6','3','2',0, '6','3','3',0, '6','3','4',0,
+ '6','3','5',0, '6','3','6',0, '6','3','7',0, '6','3','8',0, '6','3','9',0,
+ '6','4','0',0, '6','4','1',0, '6','4','2',0, '6','4','3',0, '6','4','4',0,
+ '6','4','5',0, '6','4','6',0, '6','4','7',0, '6','4','8',0, '6','4','9',0,
+ '6','5','0',0, '6','5','1',0, '6','5','2',0, '6','5','3',0, '6','5','4',0,
+ '6','5','5',0, '6','5','6',0, '6','5','7',0, '6','5','8',0, '6','5','9',0,
+ '6','6','0',0, '6','6','1',0, '6','6','2',0, '6','6','3',0, '6','6','4',0,
+ '6','6','5',0, '6','6','6',0, '6','6','7',0, '6','6','8',0, '6','6','9',0,
+ '6','7','0',0, '6','7','1',0, '6','7','2',0, '6','7','3',0, '6','7','4',0,
+ '6','7','5',0, '6','7','6',0, '6','7','7',0, '6','7','8',0, '6','7','9',0,
+ '6','8','0',0, '6','8','1',0, '6','8','2',0, '6','8','3',0, '6','8','4',0,
+ '6','8','5',0, '6','8','6',0, '6','8','7',0, '6','8','8',0, '6','8','9',0,
+ '6','9','0',0, '6','9','1',0, '6','9','2',0, '6','9','3',0, '6','9','4',0,
+ '6','9','5',0, '6','9','6',0, '6','9','7',0, '6','9','8',0, '6','9','9',0,
+ '7','0','0',0, '7','0','1',0, '7','0','2',0, '7','0','3',0, '7','0','4',0,
+ '7','0','5',0, '7','0','6',0, '7','0','7',0, '7','0','8',0, '7','0','9',0,
+ '7','1','0',0, '7','1','1',0, '7','1','2',0, '7','1','3',0, '7','1','4',0,
+ '7','1','5',0, '7','1','6',0, '7','1','7',0, '7','1','8',0, '7','1','9',0,
+ '7','2','0',0, '7','2','1',0, '7','2','2',0, '7','2','3',0, '7','2','4',0,
+ '7','2','5',0, '7','2','6',0, '7','2','7',0, '7','2','8',0, '7','2','9',0,
+ '7','3','0',0, '7','3','1',0, '7','3','2',0, '7','3','3',0, '7','3','4',0,
+ '7','3','5',0, '7','3','6',0, '7','3','7',0, '7','3','8',0, '7','3','9',0,
+ '7','4','0',0, '7','4','1',0, '7','4','2',0, '7','4','3',0, '7','4','4',0,
+ '7','4','5',0, '7','4','6',0, '7','4','7',0, '7','4','8',0, '7','4','9',0,
+ '7','5','0',0, '7','5','1',0, '7','5','2',0, '7','5','3',0, '7','5','4',0,
+ '7','5','5',0, '7','5','6',0, '7','5','7',0, '7','5','8',0, '7','5','9',0,
+ '7','6','0',0, '7','6','1',0, '7','6','2',0, '7','6','3',0, '7','6','4',0,
+ '7','6','5',0, '7','6','6',0, '7','6','7',0, '7','6','8',0, '7','6','9',0,
+ '7','7','0',0, '7','7','1',0, '7','7','2',0, '7','7','3',0, '7','7','4',0,
+ '7','7','5',0, '7','7','6',0, '7','7','7',0, '7','7','8',0, '7','7','9',0,
+ '7','8','0',0, '7','8','1',0, '7','8','2',0, '7','8','3',0, '7','8','4',0,
+ '7','8','5',0, '7','8','6',0, '7','8','7',0, '7','8','8',0, '7','8','9',0,
+ '7','9','0',0, '7','9','1',0, '7','9','2',0, '7','9','3',0, '7','9','4',0,
+ '7','9','5',0, '7','9','6',0, '7','9','7',0, '7','9','8',0, '7','9','9',0,
+ '8','0','0',0, '8','0','1',0, '8','0','2',0, '8','0','3',0, '8','0','4',0,
+ '8','0','5',0, '8','0','6',0, '8','0','7',0, '8','0','8',0, '8','0','9',0,
+ '8','1','0',0, '8','1','1',0, '8','1','2',0, '8','1','3',0, '8','1','4',0,
+ '8','1','5',0, '8','1','6',0, '8','1','7',0, '8','1','8',0, '8','1','9',0,
+ '8','2','0',0, '8','2','1',0, '8','2','2',0, '8','2','3',0, '8','2','4',0,
+ '8','2','5',0, '8','2','6',0, '8','2','7',0, '8','2','8',0, '8','2','9',0,
+ '8','3','0',0, '8','3','1',0, '8','3','2',0, '8','3','3',0, '8','3','4',0,
+ '8','3','5',0, '8','3','6',0, '8','3','7',0, '8','3','8',0, '8','3','9',0,
+ '8','4','0',0, '8','4','1',0, '8','4','2',0, '8','4','3',0, '8','4','4',0,
+ '8','4','5',0, '8','4','6',0, '8','4','7',0, '8','4','8',0, '8','4','9',0,
+ '8','5','0',0, '8','5','1',0, '8','5','2',0, '8','5','3',0, '8','5','4',0,
+ '8','5','5',0, '8','5','6',0, '8','5','7',0, '8','5','8',0, '8','5','9',0,
+ '8','6','0',0, '8','6','1',0, '8','6','2',0, '8','6','3',0, '8','6','4',0,
+ '8','6','5',0, '8','6','6',0, '8','6','7',0, '8','6','8',0, '8','6','9',0,
+ '8','7','0',0, '8','7','1',0, '8','7','2',0, '8','7','3',0, '8','7','4',0,
+ '8','7','5',0, '8','7','6',0, '8','7','7',0, '8','7','8',0, '8','7','9',0,
+ '8','8','0',0, '8','8','1',0, '8','8','2',0, '8','8','3',0, '8','8','4',0,
+ '8','8','5',0, '8','8','6',0, '8','8','7',0, '8','8','8',0, '8','8','9',0,
+ '8','9','0',0, '8','9','1',0, '8','9','2',0, '8','9','3',0, '8','9','4',0,
+ '8','9','5',0, '8','9','6',0, '8','9','7',0, '8','9','8',0, '8','9','9',0,
+ '9','0','0',0, '9','0','1',0, '9','0','2',0, '9','0','3',0, '9','0','4',0,
+ '9','0','5',0, '9','0','6',0, '9','0','7',0, '9','0','8',0, '9','0','9',0,
+ '9','1','0',0, '9','1','1',0, '9','1','2',0, '9','1','3',0, '9','1','4',0,
+ '9','1','5',0, '9','1','6',0, '9','1','7',0, '9','1','8',0, '9','1','9',0,
+ '9','2','0',0, '9','2','1',0, '9','2','2',0, '9','2','3',0, '9','2','4',0,
+ '9','2','5',0, '9','2','6',0, '9','2','7',0, '9','2','8',0, '9','2','9',0,
+ '9','3','0',0, '9','3','1',0, '9','3','2',0, '9','3','3',0, '9','3','4',0,
+ '9','3','5',0, '9','3','6',0, '9','3','7',0, '9','3','8',0, '9','3','9',0,
+ '9','4','0',0, '9','4','1',0, '9','4','2',0, '9','4','3',0, '9','4','4',0,
+ '9','4','5',0, '9','4','6',0, '9','4','7',0, '9','4','8',0, '9','4','9',0,
+ '9','5','0',0, '9','5','1',0, '9','5','2',0, '9','5','3',0, '9','5','4',0,
+ '9','5','5',0, '9','5','6',0, '9','5','7',0, '9','5','8',0, '9','5','9',0,
+ '9','6','0',0, '9','6','1',0, '9','6','2',0, '9','6','3',0, '9','6','4',0,
+ '9','6','5',0, '9','6','6',0, '9','6','7',0, '9','6','8',0, '9','6','9',0,
+ '9','7','0',0, '9','7','1',0, '9','7','2',0, '9','7','3',0, '9','7','4',0,
+ '9','7','5',0, '9','7','6',0, '9','7','7',0, '9','7','8',0, '9','7','9',0,
+ '9','8','0',0, '9','8','1',0, '9','8','2',0, '9','8','3',0, '9','8','4',0,
+ '9','8','5',0, '9','8','6',0, '9','8','7',0, '9','8','8',0, '9','8','9',0,
+ '9','9','0',0, '9','9','1',0, '9','9','2',0, '9','9','3',0, '9','9','4',0,
+ '9','9','5',0, '9','9','6',0, '9','9','7',0, '9','9','8',0, '9','9','9',0
+};
+
+static char scratch_buffer[32];
+
+/*
+ * sprintf_irc
+ *
+ * sprintf_irc is optimized for the formats: %c, %s, %lu, %d and %u.
+ * Where %lu actually equals %l09u (for printing time_t timestamps).
+ *
+ * sprintf_irc is NOT optimized for any other format and resorts to using
+ * the normal sprintf when it encounters a format it doesn't understand
+ * (including padding, width, precision etc).
+ *
+ * The following benchmark was measured on a PPro200 with linux 2.0.30,
+ * libc 5.4.28, compiled with gcc-2.7.2.1 with -O3.
+ *
+ * Format sprintf sprintf_irc Speed up factor
+ *
+ * "12345678901234567890" 3.385 us 0.859 us 3.94
+ * "%s", buffer (20 chars) 3.780 us 0.547 us 6.91
+ * "%c%c%c", c1, c2, c3 3.640 us 0.376 us 9.68
+ * "%lu", (time_t)t 5.851 us 0.842 us 6.95
+ *
+ * Less important:
+ * "%d", 31337 4.487 us 0.852 us 5.27
+ * "%u.%u.%u.%u", 9.069 us 2.431 us 3.73
+ *
+ * Not used:
+ * "%03d", 401 4.348 us
+ * "%N" 0.216 us 20.13
+ *
+ * --Run
+ */
+
+int
+vsprintf_irc(char *str, const char *format, va_list args)
+{
+ char c;
+ int bytes = 0;
+
+ while ((c = *format++))
+ {
+ if (c == '%')
+ {
+ c = *format++; /* May never be '\0' ! */
+
+ if (c == 's')
+ {
+ const char *p1 = va_arg(args, const char *);
+ if ((*str = *p1))
+ {
+ ++bytes;
+ while ((*++str = *++p1))
+ ++bytes;
+ }
+
+ continue;
+ }
+
+ if (c == 'c')
+ {
+ *str++ = (char) va_arg(args, int);
+ ++bytes;
+
+ continue;
+ }
+
+ /*
+ * Prints time_t value in interval
+ * [ 100000000 , 4294967295 ]
+ * Actually prints like "%09lu"
+ */
+ if (c == 'l' && *format == 'u')
+ {
+ unsigned long v1, v2;
+ const char *ap;
+
+ ++format;
+ v1 = va_arg(args, unsigned long);
+ if (v1 == 0)
+ {
+ *str++ = '0';
+ ++bytes;
+ continue;
+ }
+ if (v1 > 999999999L)
+ {
+ v2 = v1 / 1000000000;
+ v1 -= v2 * 1000000000;
+ *str++ = '0' + v2;
+ ++bytes;
+ }
+
+ v2 = v1 / 1000000;
+ v1 -= v2 * 1000000;
+ ap = atoi_tab + (v2 << 2);
+ *str++ = *ap++;
+ *str++ = *ap++;
+ *str++ = *ap;
+ v2 = v1 / 1000;
+ v1 -= v2 * 1000;
+ ap = atoi_tab + (v2 << 2);
+ *str++ = *ap++;
+ *str++ = *ap++;
+ *str++ = *ap;
+ ap = atoi_tab + (v1 << 2);
+ *str++ = *ap++;
+ *str++ = *ap++;
+ *str++ = *ap;
+
+ bytes += 9;
+
+ continue;
+ }
+ if (c == 't')
+ {
+ unsigned int v1;
+
+ v1 = va_arg(args,int);
+
+ *str++ = (v1/10) + '0';
+ *str++ = v1%10 + '0';
+
+ bytes += 2;
+
+ continue;
+ }
+
+ if (c == 'd')
+ {
+ unsigned int v1, v2;
+ const char *ap;
+ char *s = &scratch_buffer[sizeof(scratch_buffer) - 2];
+
+ v1 = va_arg(args, int);
+ if ((int)v1 <= 0)
+ {
+ if (v1 == 0)
+ {
+ *str++ = '0';
+ ++bytes;
+ continue;
+ }
+ *str++ = '-';
+ ++bytes;
+ v1 = -v1;
+ }
+
+ do
+ {
+ v2 = v1 / 1000;
+ ap = atoi_tab + 2 + ((v1 - 1000 * v2) << 2);
+ *s-- = *ap--;
+ *s-- = *ap--;
+ *s-- = *ap;
+ }
+ while ((v1 = v2) > 0);
+
+ while ('0' == *++s);
+
+ *str = *s;
+ ++bytes;
+
+ while ((*++str = *++s))
+ ++bytes;
+
+ continue;
+ }
+
+ if (c == 'u')
+ {
+ unsigned int v1, v2;
+ const char *ap;
+ char *s = &scratch_buffer[sizeof(scratch_buffer) - 2];
+
+ v1 = va_arg(args, unsigned int);
+ if (v1 == 0)
+ {
+ *str++ = '0';
+ ++bytes;
+ continue;
+ }
+
+ do
+ {
+ v2 = v1 / 1000;
+ ap = atoi_tab + 2 + ((v1 - 1000 * v2) << 2);
+ *s-- = *ap--;
+ *s-- = *ap--;
+ *s-- = *ap;
+ }
+ while ((v1 = v2) > 0);
+
+ while ('0' == *++s);
+
+ *str = *s;
+ ++bytes;
+
+ while ((*++str = *++s))
+ ++bytes;
+
+ continue;
+ }
+
+ if (c != '%')
+ {
+ int ret;
+
+ format -= 2;
+ ret = vsprintf(str, format, args);
+ str += ret;
+ bytes += ret;
+
+ break;
+ }
+ }
+
+ *str++ = c;
+ ++bytes;
+ }
+
+ *str = '\0';
+
+ return(bytes);
+} /* vsprintf_irc() */
+
+int
+ircsprintf(char *str, const char *format, ...)
+{
+ va_list args;
+ int bytes;
+
+ va_start(args, format);
+
+ bytes = vsprintf_irc(str, format, args);
+
+ va_end(args);
+
+ return(bytes);
+} /* ircsprintf() */
+
generated by cgit (git 2.34.1) at 2025-05-10 03:21:04 +0000