1 /******************************************************************************/
2 /* pfixtools: a collection of postfix related tools */
4 /* ________________________________________________________________________ */
6 /* Redistribution and use in source and binary forms, with or without */
7 /* modification, are permitted provided that the following conditions */
10 /* 1. Redistributions of source code must retain the above copyright */
11 /* notice, this list of conditions and the following disclaimer. */
12 /* 2. Redistributions in binary form must reproduce the above copyright */
13 /* notice, this list of conditions and the following disclaimer in the */
14 /* documentation and/or other materials provided with the distribution. */
15 /* 3. The names of its contributors may not be used to endorse or promote */
16 /* products derived from this software without specific prior written */
19 /* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND */
20 /* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE */
21 /* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR */
22 /* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS */
23 /* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR */
24 /* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF */
25 /* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS */
26 /* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN */
27 /* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) */
28 /* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF */
29 /* THE POSSIBILITY OF SUCH DAMAGE. */
30 /******************************************************************************/
33 * Copyright © 2008 Florent Bruneau
36 #ifndef PFIXTOOLS_FILTER_H
37 #define PFIXTOOLS_FILTER_H
40 #include "filter_tokens.h"
44 typedef filter_token filter_type_t;
46 typedef struct filter_hook_t {
55 typedef struct filter_params_t {
59 ARRAY(filter_params_t)
61 typedef struct filter_t {
65 A(filter_hook_t) hooks;
68 A(filter_params_t) params;
72 #define FILTER_INIT { NULL, FTK_UNKNOWN, ARRAY_INIT, NULL, ARRAY_INIT }
74 typedef const char *filter_result_t;
75 typedef filter_result_t (*filter_runner_t)(const filter_t *filter,
76 const query_t *query);
77 typedef bool (*filter_constructor_t)(filter_t *filter);
78 typedef void (*filter_destructor_t)(filter_t *filter);
80 __attribute__((nonnull(1,4)))
81 void filter_register(const char *type, filter_constructor_t constructor,
82 filter_destructor_t destructor, filter_runner_t runner);
84 __attribute__((nonnull(1)))
85 static inline void filter_init(filter_t *filter)
87 const filter_t f = FILTER_INIT;
91 __attribute__((nonnull(1,2)))
92 void filter_set_name(filter_t *filter, const char *name, ssize_t len);
94 __attribute__((nonnull(1,2)))
95 bool filter_set_type(filter_t *filter, const char *type, ssize_t len);
97 __attribute__((nonnull(1,2,4)))
98 bool filter_add_param(filter_t *filter, const char *name, ssize_t name_len,
99 const char *value, ssize_t value_len);
101 __attribute__((nonnull(1,2,4)))
102 bool filter_add_hook(filter_t *filter, const char *name, ssize_t name_len,
103 const char *value, ssize_t value_len);
105 __attribute__((nonnull(1)))
106 bool filter_build(filter_t *filter);
108 __attribute__((nonnull(1,2)))
109 static inline int filter_find_with_name(A(filter_t) *array, const char *name)
112 int end = array->len;
114 while (start < end) {
115 int mid = (start + end) / 2;
116 int cmp = strcmp(name, array_elt(*array, mid).name);
120 } else if (cmp < 0) {
129 __attribute__((nonnull(1,2)))
130 bool filter_update_references(filter_t *filter, A(filter_t) *array);
132 __attribute__((nonnull(1)))
133 static inline void filter_hook_wipe(filter_hook_t *hook)
135 p_delete(&hook->name);
136 p_delete(&hook->value);
139 __attribute__((nonnull(1)))
140 static inline void filter_params_wipe(filter_params_t *param)
142 p_delete(¶m->name);
143 p_delete(¶m->value);
146 __attribute__((nonnull(1)))
147 void filter_wipe(filter_t *filter);
149 __attribute__((nonnull(1,2)))
150 filter_result_t filter_run(const filter_t *filter, const query_t *query);