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Constantin Kaplinskya2adc8d2006-05-25 05:01:55 +00001/* Copyright (C) 2002-2005 RealVNC Ltd. All Rights Reserved.
2 *
3 * This is free software; you can redistribute it and/or modify
4 * it under the terms of the GNU General Public License as published by
5 * the Free Software Foundation; either version 2 of the License, or
6 * (at your option) any later version.
7 *
8 * This software is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
12 *
13 * You should have received a copy of the GNU General Public License
14 * along with this software; if not, write to the Free Software
15 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
16 * USA.
17 */
18
19/*
20 * The following applies to stcasecmp and strncasecmp implementations:
21 *
22 * Copyright (c) 1987 Regents of the University of California.
23 * All rights reserved.
24 *
25 * Redistribution and use in source and binary forms are permitted
26 * provided that this notice is preserved and that due credit is given
27 * to the University of California at Berkeley. The name of the University
28 * may not be used to endorse or promote products derived from this
29 * software without specific written prior permission. This software
30 * is provided ``as is'' without express or implied warranty.
31 */
32
33#include <rfb/util.h>
34
35// Provide strcasecmp() and/or strncasecmp() if absent on this system.
36
37#ifndef WIN32
38#if !defined(HAVE_STRCASECMP) || !defined(HAVE_STRNCASECMP)
39
40extern "C" {
41
42/*
43 * This array is designed for mapping upper and lower case letter
44 * together for a case independent comparison. The mappings are
45 * based upon ascii character sequences.
46 */
47static unsigned char s_charmap[] = {
48 '\000', '\001', '\002', '\003', '\004', '\005', '\006', '\007',
49 '\010', '\011', '\012', '\013', '\014', '\015', '\016', '\017',
50 '\020', '\021', '\022', '\023', '\024', '\025', '\026', '\027',
51 '\030', '\031', '\032', '\033', '\034', '\035', '\036', '\037',
52 '\040', '\041', '\042', '\043', '\044', '\045', '\046', '\047',
53 '\050', '\051', '\052', '\053', '\054', '\055', '\056', '\057',
54 '\060', '\061', '\062', '\063', '\064', '\065', '\066', '\067',
55 '\070', '\071', '\072', '\073', '\074', '\075', '\076', '\077',
56 '\100', '\141', '\142', '\143', '\144', '\145', '\146', '\147',
57 '\150', '\151', '\152', '\153', '\154', '\155', '\156', '\157',
58 '\160', '\161', '\162', '\163', '\164', '\165', '\166', '\167',
59 '\170', '\171', '\172', '\133', '\134', '\135', '\136', '\137',
60 '\140', '\141', '\142', '\143', '\144', '\145', '\146', '\147',
61 '\150', '\151', '\152', '\153', '\154', '\155', '\156', '\157',
62 '\160', '\161', '\162', '\163', '\164', '\165', '\166', '\167',
63 '\170', '\171', '\172', '\173', '\174', '\175', '\176', '\177',
64 '\200', '\201', '\202', '\203', '\204', '\205', '\206', '\207',
65 '\210', '\211', '\212', '\213', '\214', '\215', '\216', '\217',
66 '\220', '\221', '\222', '\223', '\224', '\225', '\226', '\227',
67 '\230', '\231', '\232', '\233', '\234', '\235', '\236', '\237',
68 '\240', '\241', '\242', '\243', '\244', '\245', '\246', '\247',
69 '\250', '\251', '\252', '\253', '\254', '\255', '\256', '\257',
70 '\260', '\261', '\262', '\263', '\264', '\265', '\266', '\267',
71 '\270', '\271', '\272', '\273', '\274', '\275', '\276', '\277',
72 '\300', '\341', '\342', '\343', '\344', '\345', '\346', '\347',
73 '\350', '\351', '\352', '\353', '\354', '\355', '\356', '\357',
74 '\360', '\361', '\362', '\363', '\364', '\365', '\366', '\367',
75 '\370', '\371', '\372', '\333', '\334', '\335', '\336', '\337',
76 '\340', '\341', '\342', '\343', '\344', '\345', '\346', '\347',
77 '\350', '\351', '\352', '\353', '\354', '\355', '\356', '\357',
78 '\360', '\361', '\362', '\363', '\364', '\365', '\366', '\367',
79 '\370', '\371', '\372', '\373', '\374', '\375', '\376', '\377',
80};
81
82#ifndef HAVE_STRCASECMP
83int
84strcasecmp(const char *s1, const char *s2)
85{
86 unsigned char u1, u2;
87
88 for (;;) {
89 u1 = (unsigned char) *s1++;
90 u2 = (unsigned char) *s2++;
91 if (s_charmap[u1] != s_charmap[u2]) {
92 return s_charmap[u1] - s_charmap[u2];
93 }
94 if (u1 == '\0') {
95 return 0;
96 }
97 }
98}
99#endif // !defined(HAVE_STRCASECMP)
100
101#ifndef HAVE_STRNCASECMP
102int
103strncasecmp(const char *s1, const char *s2, size_t n)
104{
105 unsigned char u1, u2;
106
107 for (; n != 0; --n) {
108 u1 = (unsigned char) *s1++;
109 u2 = (unsigned char) *s2++;
110 if (s_charmap[u1] != s_charmap[u2]) {
111 return s_charmap[u1] - s_charmap[u2];
112 }
113 if (u1 == '\0') {
114 return 0;
115 }
116 }
117 return 0;
118}
119#endif // !defined(HAVE_STRNCASECMP)
120
121} // extern "C"
122
123#endif // !defined(HAVE_STRCASECMP) || !defined(HAVE_STRNCASECMP)
124#endif // defined(WIN32)
125
126namespace rfb {
127
128 char* strDup(const char* s) {
129 if (!s) return 0;
130 int l = strlen(s);
131 char* r = new char[l+1];
132 memcpy(r, s, l+1);
133 return r;
134 };
135
136 void strFree(char* s) {
137 delete [] s;
138 }
139
140
141 bool strSplit(const char* src, const char limiter, char** out1, char** out2, bool fromEnd) {
142 CharArray out1old, out2old;
143 if (out1) out1old.buf = *out1;
144 if (out2) out2old.buf = *out2;
145 int len = strlen(src);
146 int i=0, increment=1, limit=len;
147 if (fromEnd) {
148 i=len-1; increment = -1; limit = -1;
149 }
150 while (i!=limit) {
151 if (src[i] == limiter) {
152 if (out1) {
153 *out1 = new char[i+1];
154 if (i) memcpy(*out1, src, i);
155 (*out1)[i] = 0;
156 }
157 if (out2) {
158 *out2 = new char[len-i];
159 if (len-i-1) memcpy(*out2, &src[i+1], len-i-1);
160 (*out2)[len-i-1] = 0;
161 }
162 return true;
163 }
164 i+=increment;
165 }
166 if (out1) *out1 = strDup(src);
167 if (out2) *out2 = 0;
168 return false;
169 }
170
171 bool strContains(const char* src, char c) {
172 int l=strlen(src);
173 for (int i=0; i<l; i++)
174 if (src[i] == c) return true;
175 return false;
176 }
177
178 void strCopy(char* dest, const char* src, int destlen) {
179 if (src)
180 strncpy(dest, src, destlen-1);
181 dest[src ? destlen-1 : 0] = 0;
182 }
183
184};