d3372da9 |
1 | /* |
2 | * Dolda Connect - Modular multiuser Direct Connect-style client |
3 | * Copyright (C) 2004 Fredrik Tolf (fredrik@dolda2000.com) |
4 | * |
5 | * This program is free software; you can redistribute it and/or modify |
6 | * it under the terms of the GNU General Public License as published by |
7 | * the Free Software Foundation; either version 2 of the License, or |
8 | * (at your option) any later version. |
9 | * |
10 | * This program is distributed in the hope that it will be useful, |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
13 | * GNU General Public License for more details. |
14 | * |
15 | * You should have received a copy of the GNU General Public License |
16 | * along with this program; if not, write to the Free Software |
17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
18 | */ |
19 | |
20 | #include <malloc.h> |
21 | #include <stdarg.h> |
22 | #include <stdio.h> |
23 | #include <wchar.h> |
24 | #include <iconv.h> |
25 | #include <errno.h> |
26 | #include <string.h> |
27 | #include <wctype.h> |
28 | #include <langinfo.h> |
29 | |
30 | #ifdef HAVE_CONFIG_H |
31 | #include <config.h> |
32 | #endif |
33 | #include <doldaconnect/utils.h> |
34 | |
35 | extern int vswprintf (wchar_t *__restrict __s, size_t __n, |
36 | __const wchar_t *__restrict __format, |
37 | __gnuc_va_list __arg); |
38 | |
39 | char *vsprintf2(char *format, va_list al) |
40 | { |
41 | int ret; |
42 | char *buf; |
43 | |
44 | ret = vsnprintf(NULL, 0, format, al); |
45 | if((buf = malloc(ret + 1)) == NULL) |
46 | { |
47 | return(NULL); |
48 | } |
49 | vsnprintf(buf, ret + 1, format, al); |
50 | return(buf); |
51 | } |
52 | |
53 | char *sprintf2(char *format, ...) |
54 | { |
55 | va_list args; |
56 | char *buf; |
57 | |
58 | va_start(args, format); |
59 | buf = vsprintf2(format, args); |
60 | va_end(args); |
61 | return(buf); |
62 | } |
63 | |
64 | wchar_t *vswprintf2(wchar_t *format, va_list al) |
65 | { |
66 | int ret; |
67 | wchar_t *buf; |
68 | size_t bufsize; |
69 | |
70 | buf = smalloc(sizeof(wchar_t) * (bufsize = 1024)); |
71 | while((ret = vswprintf(buf, bufsize, format, al)) < 0) |
72 | buf = srealloc(buf, sizeof(wchar_t) * (bufsize *= 2)); |
73 | if(bufsize > ret + 1) |
74 | buf = srealloc(buf, sizeof(wchar_t) * (ret + 1)); |
75 | return(buf); |
76 | } |
77 | |
78 | wchar_t *swprintf2(wchar_t *format, ...) |
79 | { |
80 | va_list args; |
81 | wchar_t *buf; |
82 | |
83 | va_start(args, format); |
84 | buf = vswprintf2(format, args); |
85 | va_end(args); |
86 | return(buf); |
87 | } |
88 | |
89 | wchar_t *icmbstowcs(char *mbs, char *charset) |
90 | { |
91 | int ret; |
92 | char *buf; |
93 | char *p, *p2; |
94 | size_t len1, len2, bufsize, data; |
95 | iconv_t cd; |
96 | |
97 | len1 = strlen(mbs) + 1; |
98 | bufsize = len2 = len1 * sizeof(wchar_t); |
99 | if((buf = malloc(bufsize)) == NULL) |
100 | { |
101 | return(NULL); |
102 | } |
103 | if(charset == NULL) |
104 | charset = nl_langinfo(CODESET); |
105 | if((cd = iconv_open("wchar_t", charset)) == (iconv_t)-1) |
106 | { |
107 | free(buf); |
108 | return(NULL); |
109 | } |
110 | p = buf; |
111 | while(len1 > 0) |
112 | { |
113 | ret = iconv(cd, &mbs, &len1, &p, &len2); |
114 | if(ret < 0) |
115 | { |
116 | if(errno == E2BIG) |
117 | { |
118 | data = p - buf; |
119 | len2 += 128; |
120 | bufsize += 128; |
121 | if((p2 = realloc(buf, bufsize)) == NULL) |
122 | { |
123 | free(buf); |
124 | return(NULL); |
125 | } |
126 | buf = p2; |
127 | p = buf + data; |
128 | } else { |
129 | free(buf); |
130 | return(NULL); |
131 | } |
132 | } |
133 | } |
134 | if(len2 > 0) |
135 | buf = realloc(buf, p - buf); |
136 | iconv_close(cd); |
137 | return((wchar_t *)buf); |
138 | } |
139 | |
140 | wchar_t *icsmbstowcs(char *mbs, char *charset, wchar_t *def) |
141 | { |
142 | static wchar_t *buf = NULL; |
143 | |
144 | if(buf != NULL) |
145 | free(buf); |
146 | if((buf = icmbstowcs(mbs, charset)) == NULL) |
147 | return(def); |
148 | return(buf); |
149 | } |
150 | |
151 | char *icwcstombs(wchar_t *wcs, char *charset) |
152 | { |
153 | int ret; |
154 | char *buf; |
155 | char *p, *p2; |
156 | size_t len1, len2, bufsize, data; |
157 | iconv_t cd; |
158 | |
159 | len1 = sizeof(wchar_t) * (wcslen(wcs) + 1); |
160 | bufsize = len2 = len1; |
161 | if((buf = malloc(bufsize)) == NULL) |
162 | { |
163 | return(NULL); |
164 | } |
165 | if(charset == NULL) |
166 | charset = nl_langinfo(CODESET); |
167 | if((cd = iconv_open(charset, "wchar_t")) == (iconv_t)-1) |
168 | { |
169 | free(buf); |
170 | return(NULL); |
171 | } |
172 | p = buf; |
173 | while(len1 > 0) |
174 | { |
175 | ret = iconv(cd, (char **)&wcs, &len1, &p, &len2); |
176 | if(ret < 0) |
177 | { |
178 | if(errno == E2BIG) |
179 | { |
180 | data = p - buf; |
181 | len2 += 128; |
182 | bufsize += 128; |
183 | if((p2 = realloc(buf, bufsize)) == NULL) |
184 | { |
185 | free(buf); |
186 | return(NULL); |
187 | } |
188 | buf = p2; |
189 | p = buf + data; |
190 | } else { |
191 | free(buf); |
192 | return(NULL); |
193 | } |
194 | } |
195 | } |
196 | if(len2 > 0) |
197 | buf = realloc(buf, p - buf); |
198 | iconv_close(cd); |
199 | return(buf); |
200 | } |
201 | |
202 | char *icswcstombs(wchar_t *wcs, char *charset, char *def) |
203 | { |
204 | static char *buf = NULL; |
205 | |
206 | if(buf != NULL) |
207 | free(buf); |
208 | if((buf = icwcstombs(wcs, charset)) == NULL) |
209 | return(def); |
210 | return(buf); |
211 | } |
212 | |
213 | wchar_t *wcstolower(wchar_t *wcs) |
214 | { |
215 | wchar_t *p; |
216 | |
217 | for(p = wcs; *p != L'\0'; p++) |
218 | *p = towlower(*p); |
219 | return(wcs); |
220 | } |
221 | |
222 | void _sizebuf(void **buf, size_t *bufsize, size_t reqsize, size_t elsize, int algo) |
223 | { |
224 | if(*bufsize >= reqsize) |
225 | return; |
226 | switch(algo) |
227 | { |
228 | case 0: |
229 | *buf = srealloc(*buf, elsize * ((*bufsize) = reqsize)); |
230 | break; |
231 | case 1: |
232 | if(*bufsize == 0) |
233 | *bufsize = 1; |
234 | while(*bufsize < reqsize) |
235 | *bufsize *= 2; |
236 | *buf = srealloc(*buf, elsize * (*bufsize)); |
237 | break; |
238 | } |
239 | } |