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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 | #ifndef _UTILS_H |
20 | #define _UTILS_H |
21 | |
22 | #include <stdarg.h> |
23 | #include <stdlib.h> |
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24 | #ifdef DAEMON |
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25 | #include "log.h" |
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26 | #endif |
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27 | |
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28 | struct wcspair { |
29 | struct wcspair *next; |
30 | wchar_t *key; |
31 | wchar_t *val; |
32 | }; |
33 | |
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34 | |
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35 | /* "Safe" functions */ |
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36 | #ifdef DAEMON |
37 | #define LOGOOM(size) flog(LOG_CRIT, "%s (%s:%i): out of memory (alloc %i)", __FUNCTION__, __FILE__, __LINE__, (size)) |
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38 | #define smalloc(size) ({void *__result__; ((__result__ = malloc(size)) == NULL)?({LOGOOM(size); abort(); (void *)0;}):__result__;}) |
39 | #define srealloc(ptr, size) ({void *__result__; ((__result__ = realloc((ptr), (size))) == NULL)?({LOGOOM(size); abort(); (void *)0;}):__result__;}) |
40 | #define swcsdup(wcs) ((wchar_t *)wcscpy(smalloc(sizeof(wchar_t) * (wcslen(wcs) + 1)), (wcs))) |
41 | #define sstrdup(str) ((char *)strcpy(smalloc(strlen(str) + 1), (str))) |
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42 | #else |
43 | #define LOGOOM(size) |
44 | #define smalloc(size) ({void *__result__; ((__result__ = malloc(size)) == NULL)?({exit(-1); (void *)0;}):__result__;}) |
45 | #define srealloc(ptr, size) ({void *__result__; ((__result__ = realloc((ptr), (size))) == NULL)?({exit(-1); (void *)0;}):__result__;}) |
46 | #define swcsdup(wcs) ((wchar_t *)wcscpy(smalloc(sizeof(wchar_t) * (wcslen(wcs) + 1)), (wcs))) |
47 | #define sstrdup(str) ((char *)strcpy(smalloc(strlen(str) + 1), (str))) |
48 | #endif |
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49 | |
50 | #define CBCHAIN(name, args...) \ |
51 | struct cbchain_ ## name { \ |
52 | struct cbchain_ ## name *next, *prev; \ |
53 | int (*func)(args, void *data); \ |
54 | void (*destroy)(void *data); \ |
55 | void *data; \ |
56 | } * name |
57 | |
58 | #define GCBCHAIN(name, args...) \ |
59 | struct cbchain_ ## name * name = NULL |
60 | |
61 | #define EGCBCHAIN(name, args...) \ |
62 | extern struct cbchain_ ## name { \ |
63 | struct cbchain_ ## name *next, *prev; \ |
64 | int (*func)(args, void *data); \ |
65 | void *data; \ |
66 | } * name |
67 | |
68 | extern int vswprintf (wchar_t *__restrict __s, size_t __n, |
69 | __const wchar_t *__restrict __format, |
70 | __gnuc_va_list __arg); |
71 | extern int swprintf (wchar_t *__restrict __s, size_t __n, |
72 | __const wchar_t *__restrict __format, ...); |
73 | |
74 | char *vsprintf2(char *format, va_list al); |
75 | char *sprintf2(char *format, ...) |
76 | #if defined(__GNUC__) && 0 |
77 | __attribute__ ((format (printf, 1, 2))) |
78 | #endif |
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79 | ; |
80 | wchar_t *vswprintf2(wchar_t *format, va_list al); |
81 | wchar_t *swprintf2(wchar_t *format, ...); |
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82 | int havecharset(char *charset); |
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83 | wchar_t *icmbstowcs(char *mbs, char *charset); |
84 | wchar_t *icsmbstowcs(char *mbs, char *charset, wchar_t *def); |
85 | char *icwcstombs(wchar_t *wcs, char *charset); |
86 | char *icswcstombs(wchar_t *wcs, char *charset, char *def); |
87 | wchar_t *wcstolower(wchar_t *wcs); |
88 | wchar_t ucptowc(int ucp); |
89 | void _sizebuf(void **buf, size_t *bufsize, size_t reqsize, size_t elsize, int algo); |
90 | double ntime(void); |
91 | int wcsexists(wchar_t *h, wchar_t *n); |
92 | #ifndef HAVE_WCSCASECMP |
93 | int wcscasecmp(const wchar_t *s1, const wchar_t *s2); |
94 | #endif |
95 | char *hexencode(char *data, size_t datalen); |
96 | char *hexdecode(char *data, size_t *len); |
97 | char *base64encode(char *data, size_t datalen); |
98 | char *base64decode(char *data, size_t *datalen); |
99 | char *base32encode(char *data, size_t datalen); |
100 | char *base32decode(char *data, size_t *datalen); |
101 | void _freeparr(void **arr); |
102 | int _parrlen(void **arr); |
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103 | char *findfile(char *name, char *homedir, int filldef); |
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104 | struct wcspair *newwcspair(wchar_t *key, wchar_t *val, struct wcspair **list); |
105 | void freewcspair(struct wcspair *pair, struct wcspair **list); |
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106 | wchar_t *wpfind(struct wcspair *list, wchar_t *key); |
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107 | |
108 | #define sizebuf(b, bs, rs, es, a) _sizebuf((void **)(b), (bs), (rs), (es), (a)) |
109 | #define sizebuf2(b, rs, a) _sizebuf((void **)(&(b)), &(b ## size), (rs), sizeof(*(b)), (a)) |
110 | #define addtobuf(b, c) \ |
111 | do { \ |
112 | _sizebuf((void **)(&(b)), &(b ## size), (b ## data) + 1, sizeof(*(b)), 1); \ |
113 | (b)[(b ## data)++] = (c); \ |
114 | } while(0) |
115 | #define bufcat(d, s, n) \ |
116 | do { \ |
117 | size_t __bufcat_size__; \ |
118 | __bufcat_size__ = (n); \ |
119 | _sizebuf((void **)(&(d)), &(d ## size), (d ## data) + __bufcat_size__, sizeof(*(d)), 1); \ |
120 | memcpy((d) + (d ## data), (s), sizeof(*(d)) * __bufcat_size__); \ |
121 | (d ## data) += __bufcat_size__; \ |
122 | } while (0) |
123 | |
124 | #define freeparr(parr) _freeparr((void **)(parr)) |
125 | #define parrlen(parr) _parrlen((void **)(parr)) |
126 | |
127 | #define CBREG(obj, name, funca, destroya, dataa) \ |
128 | do { \ |
129 | struct cbchain_ ## name *__new_cb__; \ |
130 | __new_cb__ = smalloc(sizeof(*__new_cb__)); \ |
131 | __new_cb__->func = funca; \ |
132 | __new_cb__->destroy = destroya; \ |
133 | __new_cb__->data = dataa; \ |
134 | __new_cb__->prev = NULL; \ |
135 | __new_cb__->next = (obj)->name; \ |
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136 | if((obj)->name != NULL) { \ |
137 | (obj)->name->prev = __new_cb__; \ |
138 | } \ |
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139 | (obj)->name = __new_cb__; \ |
140 | } while(0) |
141 | |
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142 | #define CBUNREG(obj, name, dataa) \ |
143 | do { \ |
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144 | struct cbchain_ ## name *__cur__; \ |
145 | for(__cur__ = (obj)->name; __cur__ != NULL; __cur__ = __cur__->next) { \ |
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146 | if(__cur__->data == (dataa)) { \ |
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147 | if(__cur__->destroy != NULL) \ |
148 | __cur__->destroy(__cur__->data); \ |
149 | if(__cur__->prev != NULL) \ |
150 | __cur__->prev->next = __cur__->next; \ |
151 | if(__cur__->next != NULL) \ |
152 | __cur__->next->prev = __cur__->prev; \ |
153 | if(__cur__ == (obj)->name) \ |
154 | (obj)->name = __cur__->next; \ |
155 | free(__cur__); \ |
156 | break; \ |
157 | } \ |
158 | } \ |
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159 | } while(0) |
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160 | |
161 | #define GCBREG(name, funca, dataa) \ |
162 | do { \ |
163 | struct cbchain_ ## name *__new_cb__; \ |
164 | __new_cb__ = smalloc(sizeof(*__new_cb__)); \ |
165 | __new_cb__->func = funca; \ |
166 | __new_cb__->data = dataa; \ |
167 | __new_cb__->prev = NULL; \ |
168 | __new_cb__->next = name; \ |
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169 | if(name != NULL) { \ |
170 | name->prev = __new_cb__; \ |
171 | } \ |
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172 | name = __new_cb__; \ |
173 | } while(0) |
174 | |
175 | #define CBCHAININIT(obj, name) (obj)->name = NULL |
176 | |
177 | #define CBCHAINFREE(obj, name) \ |
178 | do { \ |
179 | struct cbchain_ ## name *__cur__; \ |
180 | while((__cur__ = (obj)->name) != NULL) { \ |
181 | (obj)->name = __cur__->next; \ |
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182 | if(__cur__->destroy != NULL) \ |
183 | __cur__->destroy(__cur__->data); \ |
184 | free(__cur__); \ |
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185 | } \ |
186 | } while(0) |
187 | |
188 | #define CBCHAINDOCB(obj, name, args...) \ |
189 | do { \ |
190 | struct cbchain_ ## name *__cur__, *__next__; \ |
191 | for(__cur__ = (obj)->name; __cur__ != NULL; __cur__ = __next__) { \ |
192 | __next__ = __cur__->next; \ |
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193 | if(__cur__->func(args, __cur__->data)) { \ |
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194 | if(__cur__->next != NULL) \ |
195 | __cur__->next->prev = __cur__->prev; \ |
196 | if(__cur__->prev != NULL) \ |
197 | __cur__->prev->next = __cur__->next; \ |
198 | if(__cur__ == (obj)->name) \ |
199 | (obj)->name = __cur__->next; \ |
200 | free(__cur__); \ |
201 | } \ |
202 | } \ |
203 | } while(0) |
204 | |
205 | #define GCBCHAINDOCB(name, args...) \ |
206 | ({ \ |
207 | struct cbchain_ ## name *__cur__; \ |
208 | int __ret__; \ |
209 | __ret__ = 0; \ |
210 | for(__cur__ = name; __cur__ != NULL; __cur__ = __cur__->next) { \ |
211 | if(__cur__->func(args, __cur__->data)) { \ |
212 | __ret__ = 1; \ |
213 | break; \ |
214 | } \ |
215 | } \ |
216 | __ret__; \ |
217 | }) |
218 | |
219 | #endif |