/[svn]/ircd-hybrid-7.2/src/sprintf_irc.c
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Annotation of /ircd-hybrid-7.2/src/sprintf_irc.c

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Revision 31 - (hide annotations)
Sun Oct 2 20:34:05 2005 UTC (15 years, 5 months ago) by knight
Original Path: ircd-hybrid/src/sprintf_irc.c
File MIME type: text/x-chdr
File size: 21389 byte(s) 
- Fix svn:keywords
1 adx 30 /*
2     * ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
3     * sprintf_irc.c: Functions for printing to a string.
4     *
5     * Copyright (C) 2002 by the past and present ircd coders, and others.
6     *
7     * This program is free software; you can redistribute it and/or modify
8     * it under the terms of the GNU General Public License as published by
9     * the Free Software Foundation; either version 2 of the License, or
10     * (at your option) any later version.
11     *
12     * This program is distributed in the hope that it will be useful,
13     * but WITHOUT ANY WARRANTY; without even the implied warranty of
14     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15     * GNU General Public License for more details.
16     *
17     * You should have received a copy of the GNU General Public License
18     * along with this program; if not, write to the Free Software
19     * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
20     * USA
21     *
22 knight 31 * $Id$
23 adx 30 */
24    
25     #include "stdinc.h"
26     #include "sprintf_irc.h"
27     #include "irc_string.h"
28    
29    
30     static const char atoi_tab[4000] = {
31     '0','0','0',0, '0','0','1',0, '0','0','2',0, '0','0','3',0, '0','0','4',0,
32     '0','0','5',0, '0','0','6',0, '0','0','7',0, '0','0','8',0, '0','0','9',0,
33     '0','1','0',0, '0','1','1',0, '0','1','2',0, '0','1','3',0, '0','1','4',0,
34     '0','1','5',0, '0','1','6',0, '0','1','7',0, '0','1','8',0, '0','1','9',0,
35     '0','2','0',0, '0','2','1',0, '0','2','2',0, '0','2','3',0, '0','2','4',0,
36     '0','2','5',0, '0','2','6',0, '0','2','7',0, '0','2','8',0, '0','2','9',0,
37     '0','3','0',0, '0','3','1',0, '0','3','2',0, '0','3','3',0, '0','3','4',0,
38     '0','3','5',0, '0','3','6',0, '0','3','7',0, '0','3','8',0, '0','3','9',0,
39     '0','4','0',0, '0','4','1',0, '0','4','2',0, '0','4','3',0, '0','4','4',0,
40     '0','4','5',0, '0','4','6',0, '0','4','7',0, '0','4','8',0, '0','4','9',0,
41     '0','5','0',0, '0','5','1',0, '0','5','2',0, '0','5','3',0, '0','5','4',0,
42     '0','5','5',0, '0','5','6',0, '0','5','7',0, '0','5','8',0, '0','5','9',0,
43     '0','6','0',0, '0','6','1',0, '0','6','2',0, '0','6','3',0, '0','6','4',0,
44     '0','6','5',0, '0','6','6',0, '0','6','7',0, '0','6','8',0, '0','6','9',0,
45     '0','7','0',0, '0','7','1',0, '0','7','2',0, '0','7','3',0, '0','7','4',0,
46     '0','7','5',0, '0','7','6',0, '0','7','7',0, '0','7','8',0, '0','7','9',0,
47     '0','8','0',0, '0','8','1',0, '0','8','2',0, '0','8','3',0, '0','8','4',0,
48     '0','8','5',0, '0','8','6',0, '0','8','7',0, '0','8','8',0, '0','8','9',0,
49     '0','9','0',0, '0','9','1',0, '0','9','2',0, '0','9','3',0, '0','9','4',0,
50     '0','9','5',0, '0','9','6',0, '0','9','7',0, '0','9','8',0, '0','9','9',0,
51     '1','0','0',0, '1','0','1',0, '1','0','2',0, '1','0','3',0, '1','0','4',0,
52     '1','0','5',0, '1','0','6',0, '1','0','7',0, '1','0','8',0, '1','0','9',0,
53     '1','1','0',0, '1','1','1',0, '1','1','2',0, '1','1','3',0, '1','1','4',0,
54     '1','1','5',0, '1','1','6',0, '1','1','7',0, '1','1','8',0, '1','1','9',0,
55     '1','2','0',0, '1','2','1',0, '1','2','2',0, '1','2','3',0, '1','2','4',0,
56     '1','2','5',0, '1','2','6',0, '1','2','7',0, '1','2','8',0, '1','2','9',0,
57     '1','3','0',0, '1','3','1',0, '1','3','2',0, '1','3','3',0, '1','3','4',0,
58     '1','3','5',0, '1','3','6',0, '1','3','7',0, '1','3','8',0, '1','3','9',0,
59     '1','4','0',0, '1','4','1',0, '1','4','2',0, '1','4','3',0, '1','4','4',0,
60     '1','4','5',0, '1','4','6',0, '1','4','7',0, '1','4','8',0, '1','4','9',0,
61     '1','5','0',0, '1','5','1',0, '1','5','2',0, '1','5','3',0, '1','5','4',0,
62     '1','5','5',0, '1','5','6',0, '1','5','7',0, '1','5','8',0, '1','5','9',0,
63     '1','6','0',0, '1','6','1',0, '1','6','2',0, '1','6','3',0, '1','6','4',0,
64     '1','6','5',0, '1','6','6',0, '1','6','7',0, '1','6','8',0, '1','6','9',0,
65     '1','7','0',0, '1','7','1',0, '1','7','2',0, '1','7','3',0, '1','7','4',0,
66     '1','7','5',0, '1','7','6',0, '1','7','7',0, '1','7','8',0, '1','7','9',0,
67     '1','8','0',0, '1','8','1',0, '1','8','2',0, '1','8','3',0, '1','8','4',0,
68     '1','8','5',0, '1','8','6',0, '1','8','7',0, '1','8','8',0, '1','8','9',0,
69     '1','9','0',0, '1','9','1',0, '1','9','2',0, '1','9','3',0, '1','9','4',0,
70     '1','9','5',0, '1','9','6',0, '1','9','7',0, '1','9','8',0, '1','9','9',0,
71     '2','0','0',0, '2','0','1',0, '2','0','2',0, '2','0','3',0, '2','0','4',0,
72     '2','0','5',0, '2','0','6',0, '2','0','7',0, '2','0','8',0, '2','0','9',0,
73     '2','1','0',0, '2','1','1',0, '2','1','2',0, '2','1','3',0, '2','1','4',0,
74     '2','1','5',0, '2','1','6',0, '2','1','7',0, '2','1','8',0, '2','1','9',0,
75     '2','2','0',0, '2','2','1',0, '2','2','2',0, '2','2','3',0, '2','2','4',0,
76     '2','2','5',0, '2','2','6',0, '2','2','7',0, '2','2','8',0, '2','2','9',0,
77     '2','3','0',0, '2','3','1',0, '2','3','2',0, '2','3','3',0, '2','3','4',0,
78     '2','3','5',0, '2','3','6',0, '2','3','7',0, '2','3','8',0, '2','3','9',0,
79     '2','4','0',0, '2','4','1',0, '2','4','2',0, '2','4','3',0, '2','4','4',0,
80     '2','4','5',0, '2','4','6',0, '2','4','7',0, '2','4','8',0, '2','4','9',0,
81     '2','5','0',0, '2','5','1',0, '2','5','2',0, '2','5','3',0, '2','5','4',0,
82     '2','5','5',0, '2','5','6',0, '2','5','7',0, '2','5','8',0, '2','5','9',0,
83     '2','6','0',0, '2','6','1',0, '2','6','2',0, '2','6','3',0, '2','6','4',0,
84     '2','6','5',0, '2','6','6',0, '2','6','7',0, '2','6','8',0, '2','6','9',0,
85     '2','7','0',0, '2','7','1',0, '2','7','2',0, '2','7','3',0, '2','7','4',0,
86     '2','7','5',0, '2','7','6',0, '2','7','7',0, '2','7','8',0, '2','7','9',0,
87     '2','8','0',0, '2','8','1',0, '2','8','2',0, '2','8','3',0, '2','8','4',0,
88     '2','8','5',0, '2','8','6',0, '2','8','7',0, '2','8','8',0, '2','8','9',0,
89     '2','9','0',0, '2','9','1',0, '2','9','2',0, '2','9','3',0, '2','9','4',0,
90     '2','9','5',0, '2','9','6',0, '2','9','7',0, '2','9','8',0, '2','9','9',0,
91     '3','0','0',0, '3','0','1',0, '3','0','2',0, '3','0','3',0, '3','0','4',0,
92     '3','0','5',0, '3','0','6',0, '3','0','7',0, '3','0','8',0, '3','0','9',0,
93     '3','1','0',0, '3','1','1',0, '3','1','2',0, '3','1','3',0, '3','1','4',0,
94     '3','1','5',0, '3','1','6',0, '3','1','7',0, '3','1','8',0, '3','1','9',0,
95     '3','2','0',0, '3','2','1',0, '3','2','2',0, '3','2','3',0, '3','2','4',0,
96     '3','2','5',0, '3','2','6',0, '3','2','7',0, '3','2','8',0, '3','2','9',0,
97     '3','3','0',0, '3','3','1',0, '3','3','2',0, '3','3','3',0, '3','3','4',0,
98     '3','3','5',0, '3','3','6',0, '3','3','7',0, '3','3','8',0, '3','3','9',0,
99     '3','4','0',0, '3','4','1',0, '3','4','2',0, '3','4','3',0, '3','4','4',0,
100     '3','4','5',0, '3','4','6',0, '3','4','7',0, '3','4','8',0, '3','4','9',0,
101     '3','5','0',0, '3','5','1',0, '3','5','2',0, '3','5','3',0, '3','5','4',0,
102     '3','5','5',0, '3','5','6',0, '3','5','7',0, '3','5','8',0, '3','5','9',0,
103     '3','6','0',0, '3','6','1',0, '3','6','2',0, '3','6','3',0, '3','6','4',0,
104     '3','6','5',0, '3','6','6',0, '3','6','7',0, '3','6','8',0, '3','6','9',0,
105     '3','7','0',0, '3','7','1',0, '3','7','2',0, '3','7','3',0, '3','7','4',0,
106     '3','7','5',0, '3','7','6',0, '3','7','7',0, '3','7','8',0, '3','7','9',0,
107     '3','8','0',0, '3','8','1',0, '3','8','2',0, '3','8','3',0, '3','8','4',0,
108     '3','8','5',0, '3','8','6',0, '3','8','7',0, '3','8','8',0, '3','8','9',0,
109     '3','9','0',0, '3','9','1',0, '3','9','2',0, '3','9','3',0, '3','9','4',0,
110     '3','9','5',0, '3','9','6',0, '3','9','7',0, '3','9','8',0, '3','9','9',0,
111     '4','0','0',0, '4','0','1',0, '4','0','2',0, '4','0','3',0, '4','0','4',0,
112     '4','0','5',0, '4','0','6',0, '4','0','7',0, '4','0','8',0, '4','0','9',0,
113     '4','1','0',0, '4','1','1',0, '4','1','2',0, '4','1','3',0, '4','1','4',0,
114     '4','1','5',0, '4','1','6',0, '4','1','7',0, '4','1','8',0, '4','1','9',0,
115     '4','2','0',0, '4','2','1',0, '4','2','2',0, '4','2','3',0, '4','2','4',0,
116     '4','2','5',0, '4','2','6',0, '4','2','7',0, '4','2','8',0, '4','2','9',0,
117     '4','3','0',0, '4','3','1',0, '4','3','2',0, '4','3','3',0, '4','3','4',0,
118     '4','3','5',0, '4','3','6',0, '4','3','7',0, '4','3','8',0, '4','3','9',0,
119     '4','4','0',0, '4','4','1',0, '4','4','2',0, '4','4','3',0, '4','4','4',0,
120     '4','4','5',0, '4','4','6',0, '4','4','7',0, '4','4','8',0, '4','4','9',0,
121     '4','5','0',0, '4','5','1',0, '4','5','2',0, '4','5','3',0, '4','5','4',0,
122     '4','5','5',0, '4','5','6',0, '4','5','7',0, '4','5','8',0, '4','5','9',0,
123     '4','6','0',0, '4','6','1',0, '4','6','2',0, '4','6','3',0, '4','6','4',0,
124     '4','6','5',0, '4','6','6',0, '4','6','7',0, '4','6','8',0, '4','6','9',0,
125     '4','7','0',0, '4','7','1',0, '4','7','2',0, '4','7','3',0, '4','7','4',0,
126     '4','7','5',0, '4','7','6',0, '4','7','7',0, '4','7','8',0, '4','7','9',0,
127     '4','8','0',0, '4','8','1',0, '4','8','2',0, '4','8','3',0, '4','8','4',0,
128     '4','8','5',0, '4','8','6',0, '4','8','7',0, '4','8','8',0, '4','8','9',0,
129     '4','9','0',0, '4','9','1',0, '4','9','2',0, '4','9','3',0, '4','9','4',0,
130     '4','9','5',0, '4','9','6',0, '4','9','7',0, '4','9','8',0, '4','9','9',0,
131     '5','0','0',0, '5','0','1',0, '5','0','2',0, '5','0','3',0, '5','0','4',0,
132     '5','0','5',0, '5','0','6',0, '5','0','7',0, '5','0','8',0, '5','0','9',0,
133     '5','1','0',0, '5','1','1',0, '5','1','2',0, '5','1','3',0, '5','1','4',0,
134     '5','1','5',0, '5','1','6',0, '5','1','7',0, '5','1','8',0, '5','1','9',0,
135     '5','2','0',0, '5','2','1',0, '5','2','2',0, '5','2','3',0, '5','2','4',0,
136     '5','2','5',0, '5','2','6',0, '5','2','7',0, '5','2','8',0, '5','2','9',0,
137     '5','3','0',0, '5','3','1',0, '5','3','2',0, '5','3','3',0, '5','3','4',0,
138     '5','3','5',0, '5','3','6',0, '5','3','7',0, '5','3','8',0, '5','3','9',0,
139     '5','4','0',0, '5','4','1',0, '5','4','2',0, '5','4','3',0, '5','4','4',0,
140     '5','4','5',0, '5','4','6',0, '5','4','7',0, '5','4','8',0, '5','4','9',0,
141     '5','5','0',0, '5','5','1',0, '5','5','2',0, '5','5','3',0, '5','5','4',0,
142     '5','5','5',0, '5','5','6',0, '5','5','7',0, '5','5','8',0, '5','5','9',0,
143     '5','6','0',0, '5','6','1',0, '5','6','2',0, '5','6','3',0, '5','6','4',0,
144     '5','6','5',0, '5','6','6',0, '5','6','7',0, '5','6','8',0, '5','6','9',0,
145     '5','7','0',0, '5','7','1',0, '5','7','2',0, '5','7','3',0, '5','7','4',0,
146     '5','7','5',0, '5','7','6',0, '5','7','7',0, '5','7','8',0, '5','7','9',0,
147     '5','8','0',0, '5','8','1',0, '5','8','2',0, '5','8','3',0, '5','8','4',0,
148     '5','8','5',0, '5','8','6',0, '5','8','7',0, '5','8','8',0, '5','8','9',0,
149     '5','9','0',0, '5','9','1',0, '5','9','2',0, '5','9','3',0, '5','9','4',0,
150     '5','9','5',0, '5','9','6',0, '5','9','7',0, '5','9','8',0, '5','9','9',0,
151     '6','0','0',0, '6','0','1',0, '6','0','2',0, '6','0','3',0, '6','0','4',0,
152     '6','0','5',0, '6','0','6',0, '6','0','7',0, '6','0','8',0, '6','0','9',0,
153     '6','1','0',0, '6','1','1',0, '6','1','2',0, '6','1','3',0, '6','1','4',0,
154     '6','1','5',0, '6','1','6',0, '6','1','7',0, '6','1','8',0, '6','1','9',0,
155     '6','2','0',0, '6','2','1',0, '6','2','2',0, '6','2','3',0, '6','2','4',0,
156     '6','2','5',0, '6','2','6',0, '6','2','7',0, '6','2','8',0, '6','2','9',0,
157     '6','3','0',0, '6','3','1',0, '6','3','2',0, '6','3','3',0, '6','3','4',0,
158     '6','3','5',0, '6','3','6',0, '6','3','7',0, '6','3','8',0, '6','3','9',0,
159     '6','4','0',0, '6','4','1',0, '6','4','2',0, '6','4','3',0, '6','4','4',0,
160     '6','4','5',0, '6','4','6',0, '6','4','7',0, '6','4','8',0, '6','4','9',0,
161     '6','5','0',0, '6','5','1',0, '6','5','2',0, '6','5','3',0, '6','5','4',0,
162     '6','5','5',0, '6','5','6',0, '6','5','7',0, '6','5','8',0, '6','5','9',0,
163     '6','6','0',0, '6','6','1',0, '6','6','2',0, '6','6','3',0, '6','6','4',0,
164     '6','6','5',0, '6','6','6',0, '6','6','7',0, '6','6','8',0, '6','6','9',0,
165     '6','7','0',0, '6','7','1',0, '6','7','2',0, '6','7','3',0, '6','7','4',0,
166     '6','7','5',0, '6','7','6',0, '6','7','7',0, '6','7','8',0, '6','7','9',0,
167     '6','8','0',0, '6','8','1',0, '6','8','2',0, '6','8','3',0, '6','8','4',0,
168     '6','8','5',0, '6','8','6',0, '6','8','7',0, '6','8','8',0, '6','8','9',0,
169     '6','9','0',0, '6','9','1',0, '6','9','2',0, '6','9','3',0, '6','9','4',0,
170     '6','9','5',0, '6','9','6',0, '6','9','7',0, '6','9','8',0, '6','9','9',0,
171     '7','0','0',0, '7','0','1',0, '7','0','2',0, '7','0','3',0, '7','0','4',0,
172     '7','0','5',0, '7','0','6',0, '7','0','7',0, '7','0','8',0, '7','0','9',0,
173     '7','1','0',0, '7','1','1',0, '7','1','2',0, '7','1','3',0, '7','1','4',0,
174     '7','1','5',0, '7','1','6',0, '7','1','7',0, '7','1','8',0, '7','1','9',0,
175     '7','2','0',0, '7','2','1',0, '7','2','2',0, '7','2','3',0, '7','2','4',0,
176     '7','2','5',0, '7','2','6',0, '7','2','7',0, '7','2','8',0, '7','2','9',0,
177     '7','3','0',0, '7','3','1',0, '7','3','2',0, '7','3','3',0, '7','3','4',0,
178     '7','3','5',0, '7','3','6',0, '7','3','7',0, '7','3','8',0, '7','3','9',0,
179     '7','4','0',0, '7','4','1',0, '7','4','2',0, '7','4','3',0, '7','4','4',0,
180     '7','4','5',0, '7','4','6',0, '7','4','7',0, '7','4','8',0, '7','4','9',0,
181     '7','5','0',0, '7','5','1',0, '7','5','2',0, '7','5','3',0, '7','5','4',0,
182     '7','5','5',0, '7','5','6',0, '7','5','7',0, '7','5','8',0, '7','5','9',0,
183     '7','6','0',0, '7','6','1',0, '7','6','2',0, '7','6','3',0, '7','6','4',0,
184     '7','6','5',0, '7','6','6',0, '7','6','7',0, '7','6','8',0, '7','6','9',0,
185     '7','7','0',0, '7','7','1',0, '7','7','2',0, '7','7','3',0, '7','7','4',0,
186     '7','7','5',0, '7','7','6',0, '7','7','7',0, '7','7','8',0, '7','7','9',0,
187     '7','8','0',0, '7','8','1',0, '7','8','2',0, '7','8','3',0, '7','8','4',0,
188     '7','8','5',0, '7','8','6',0, '7','8','7',0, '7','8','8',0, '7','8','9',0,
189     '7','9','0',0, '7','9','1',0, '7','9','2',0, '7','9','3',0, '7','9','4',0,
190     '7','9','5',0, '7','9','6',0, '7','9','7',0, '7','9','8',0, '7','9','9',0,
191     '8','0','0',0, '8','0','1',0, '8','0','2',0, '8','0','3',0, '8','0','4',0,
192     '8','0','5',0, '8','0','6',0, '8','0','7',0, '8','0','8',0, '8','0','9',0,
193     '8','1','0',0, '8','1','1',0, '8','1','2',0, '8','1','3',0, '8','1','4',0,
194     '8','1','5',0, '8','1','6',0, '8','1','7',0, '8','1','8',0, '8','1','9',0,
195     '8','2','0',0, '8','2','1',0, '8','2','2',0, '8','2','3',0, '8','2','4',0,
196     '8','2','5',0, '8','2','6',0, '8','2','7',0, '8','2','8',0, '8','2','9',0,
197     '8','3','0',0, '8','3','1',0, '8','3','2',0, '8','3','3',0, '8','3','4',0,
198     '8','3','5',0, '8','3','6',0, '8','3','7',0, '8','3','8',0, '8','3','9',0,
199     '8','4','0',0, '8','4','1',0, '8','4','2',0, '8','4','3',0, '8','4','4',0,
200     '8','4','5',0, '8','4','6',0, '8','4','7',0, '8','4','8',0, '8','4','9',0,
201     '8','5','0',0, '8','5','1',0, '8','5','2',0, '8','5','3',0, '8','5','4',0,
202     '8','5','5',0, '8','5','6',0, '8','5','7',0, '8','5','8',0, '8','5','9',0,
203     '8','6','0',0, '8','6','1',0, '8','6','2',0, '8','6','3',0, '8','6','4',0,
204     '8','6','5',0, '8','6','6',0, '8','6','7',0, '8','6','8',0, '8','6','9',0,
205     '8','7','0',0, '8','7','1',0, '8','7','2',0, '8','7','3',0, '8','7','4',0,
206     '8','7','5',0, '8','7','6',0, '8','7','7',0, '8','7','8',0, '8','7','9',0,
207     '8','8','0',0, '8','8','1',0, '8','8','2',0, '8','8','3',0, '8','8','4',0,
208     '8','8','5',0, '8','8','6',0, '8','8','7',0, '8','8','8',0, '8','8','9',0,
209     '8','9','0',0, '8','9','1',0, '8','9','2',0, '8','9','3',0, '8','9','4',0,
210     '8','9','5',0, '8','9','6',0, '8','9','7',0, '8','9','8',0, '8','9','9',0,
211     '9','0','0',0, '9','0','1',0, '9','0','2',0, '9','0','3',0, '9','0','4',0,
212     '9','0','5',0, '9','0','6',0, '9','0','7',0, '9','0','8',0, '9','0','9',0,
213     '9','1','0',0, '9','1','1',0, '9','1','2',0, '9','1','3',0, '9','1','4',0,
214     '9','1','5',0, '9','1','6',0, '9','1','7',0, '9','1','8',0, '9','1','9',0,
215     '9','2','0',0, '9','2','1',0, '9','2','2',0, '9','2','3',0, '9','2','4',0,
216     '9','2','5',0, '9','2','6',0, '9','2','7',0, '9','2','8',0, '9','2','9',0,
217     '9','3','0',0, '9','3','1',0, '9','3','2',0, '9','3','3',0, '9','3','4',0,
218     '9','3','5',0, '9','3','6',0, '9','3','7',0, '9','3','8',0, '9','3','9',0,
219     '9','4','0',0, '9','4','1',0, '9','4','2',0, '9','4','3',0, '9','4','4',0,
220     '9','4','5',0, '9','4','6',0, '9','4','7',0, '9','4','8',0, '9','4','9',0,
221     '9','5','0',0, '9','5','1',0, '9','5','2',0, '9','5','3',0, '9','5','4',0,
222     '9','5','5',0, '9','5','6',0, '9','5','7',0, '9','5','8',0, '9','5','9',0,
223     '9','6','0',0, '9','6','1',0, '9','6','2',0, '9','6','3',0, '9','6','4',0,
224     '9','6','5',0, '9','6','6',0, '9','6','7',0, '9','6','8',0, '9','6','9',0,
225     '9','7','0',0, '9','7','1',0, '9','7','2',0, '9','7','3',0, '9','7','4',0,
226     '9','7','5',0, '9','7','6',0, '9','7','7',0, '9','7','8',0, '9','7','9',0,
227     '9','8','0',0, '9','8','1',0, '9','8','2',0, '9','8','3',0, '9','8','4',0,
228     '9','8','5',0, '9','8','6',0, '9','8','7',0, '9','8','8',0, '9','8','9',0,
229     '9','9','0',0, '9','9','1',0, '9','9','2',0, '9','9','3',0, '9','9','4',0,
230     '9','9','5',0, '9','9','6',0, '9','9','7',0, '9','9','8',0, '9','9','9',0
231     };
232    
233     static char scratch_buffer[32];
234    
235     /*
236     * sprintf_irc
237     *
238     * sprintf_irc is optimized for the formats: %c, %s, %lu, %d and %u.
239     * Where %lu actually equals %l09u (for printing time_t timestamps).
240     *
241     * sprintf_irc is NOT optimized for any other format and resorts to using
242     * the normal sprintf when it encounters a format it doesn't understand
243     * (including padding, width, precision etc).
244     *
245     * The following benchmark was measured on a PPro200 with linux 2.0.30,
246     * libc 5.4.28, compiled with gcc-2.7.2.1 with -O3.
247     *
248     * Format sprintf sprintf_irc Speed up factor
249     *
250     * "12345678901234567890" 3.385 us 0.859 us 3.94
251     * "%s", buffer (20 chars) 3.780 us 0.547 us 6.91
252     * "%c%c%c", c1, c2, c3 3.640 us 0.376 us 9.68
253     * "%lu", (time_t)t 5.851 us 0.842 us 6.95
254     *
255     * Less important:
256     * "%d", 31337 4.487 us 0.852 us 5.27
257     * "%u.%u.%u.%u", 9.069 us 2.431 us 3.73
258     *
259     * Not used:
260     * "%03d", 401 4.348 us
261     * "%N" 0.216 us 20.13
262     *
263     * --Run
264     */
265    
266     int
267     vsprintf_irc(char *str, const char *format, va_list args)
268     {
269     char c;
270     int bytes = 0;
271    
272     while ((c = *format++))
273     {
274     if (c == '%')
275     {
276     c = *format++; /* May never be '\0' ! */
277    
278     if (c == 's')
279     {
280     const char *p1 = va_arg(args, const char *);
281     if ((*str = *p1))
282     {
283     ++bytes;
284     while ((*++str = *++p1))
285     ++bytes;
286     }
287    
288     continue;
289     }
290    
291     if (c == 'c')
292     {
293     *str++ = (char) va_arg(args, int);
294     ++bytes;
295    
296     continue;
297     }
298    
299     /*
300     * Prints time_t value in interval
301     * [ 100000000 , 4294967295 ]
302     * Actually prints like "%09lu"
303     */
304     if (c == 'l' && *format == 'u')
305     {
306     unsigned long v1, v2;
307     const char *ap;
308    
309     ++format;
310     v1 = va_arg(args, unsigned long);
311     if (v1 == 0)
312     {
313     *str++ = '0';
314     ++bytes;
315     continue;
316     }
317     if (v1 > 999999999L)
318     {
319     v2 = v1 / 1000000000;
320     v1 -= v2 * 1000000000;
321     *str++ = '0' + v2;
322     ++bytes;
323     }
324    
325     v2 = v1 / 1000000;
326     v1 -= v2 * 1000000;
327     ap = atoi_tab + (v2 << 2);
328     *str++ = *ap++;
329     *str++ = *ap++;
330     *str++ = *ap;
331     v2 = v1 / 1000;
332     v1 -= v2 * 1000;
333     ap = atoi_tab + (v2 << 2);
334     *str++ = *ap++;
335     *str++ = *ap++;
336     *str++ = *ap;
337     ap = atoi_tab + (v1 << 2);
338     *str++ = *ap++;
339     *str++ = *ap++;
340     *str++ = *ap;
341    
342     bytes += 9;
343    
344     continue;
345     }
346     if (c == 't')
347     {
348     unsigned int v1;
349    
350     v1 = va_arg(args,int);
351    
352     *str++ = (v1/10) + '0';
353     *str++ = v1%10 + '0';
354    
355     bytes += 2;
356    
357     continue;
358     }
359    
360     if (c == 'd')
361     {
362     unsigned int v1, v2;
363     const char *ap;
364     char *s = &scratch_buffer[sizeof(scratch_buffer) - 2];
365    
366     v1 = va_arg(args, int);
367     if ((int)v1 <= 0)
368     {
369     if (v1 == 0)
370     {
371     *str++ = '0';
372     ++bytes;
373     continue;
374     }
375     *str++ = '-';
376     ++bytes;
377     v1 = -v1;
378     }
379    
380     do
381     {
382     v2 = v1 / 1000;
383     ap = atoi_tab + 2 + ((v1 - 1000 * v2) << 2);
384     *s-- = *ap--;
385     *s-- = *ap--;
386     *s-- = *ap;
387     }
388     while ((v1 = v2) > 0);
389    
390     while ('0' == *++s);
391    
392     *str = *s;
393     ++bytes;
394    
395     while ((*++str = *++s))
396     ++bytes;
397    
398     continue;
399     }
400    
401     if (c == 'u')
402     {
403     unsigned int v1, v2;
404     const char *ap;
405     char *s = &scratch_buffer[sizeof(scratch_buffer) - 2];
406    
407     v1 = va_arg(args, unsigned int);
408     if (v1 == 0)
409     {
410     *str++ = '0';
411     ++bytes;
412     continue;
413     }
414    
415     do
416     {
417     v2 = v1 / 1000;
418     ap = atoi_tab + 2 + ((v1 - 1000 * v2) << 2);
419     *s-- = *ap--;
420     *s-- = *ap--;
421     *s-- = *ap;
422     }
423     while ((v1 = v2) > 0);
424    
425     while ('0' == *++s);
426    
427     *str = *s;
428     ++bytes;
429    
430     while ((*++str = *++s))
431     ++bytes;
432    
433     continue;
434     }
435    
436     if (c != '%')
437     {
438     int ret;
439    
440     format -= 2;
441     ret = vsprintf(str, format, args);
442     str += ret;
443     bytes += ret;
444    
445     break;
446     }
447     }
448    
449     *str++ = c;
450     ++bytes;
451     }
452    
453     *str = '\0';
454    
455     return(bytes);
456     } /* vsprintf_irc() */
457    
458     int
459     ircsprintf(char *str, const char *format, ...)
460     {
461     va_list args;
462     int bytes;
463    
464     va_start(args, format);
465    
466     bytes = vsprintf_irc(str, format, args);
467    
468     va_end(args);
469    
470     return(bytes);
471     } /* ircsprintf() */
472    

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