4 * Dick Gooris <gooris@lucent.com>
5 * Ulf Lamping <ulf.lamping@web.de>
7 * Wireshark - Network traffic analyzer
8 * By Gerald Combs <gerald@wireshark.org>
9 * Copyright 1998 Gerald Combs
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License
13 * as published by the Free Software Foundation; either version 2
14 * of the License, or (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
30 #include "ws_symbol_export.h"
31 #include <epan/wmem/wmem.h>
35 #endif /* __cplusplus */
38 * Range strings a variant of value_strings
41 /**@todo where's the best place for these? */
42 #define MAX_SCTP_PORT 65535
43 #define MAX_TCP_PORT 65535
44 #define MAX_UDP_PORT 65535
45 #define MAX_DCCP_PORT 65535
47 typedef struct range_admin_tag {
51 #define RANGE_ADMIN_T_INITIALIZER { 0, 0 }
53 /** user specified range(s) */
54 typedef struct epan_range {
55 guint nranges; /**< number of entries in ranges */
56 range_admin_t ranges[1]; /**< variable-length array */
60 * Return value from range_convert_str().
68 WS_DLL_PUBLIC range_t *range_empty(wmem_allocator_t *scope);
71 /*** Converts a range string to a fast comparable array of ranges.
72 * This function allocates a range_t large enough to hold the number
73 * of ranges specified, and fills the array range->ranges containing
74 * low and high values with the number of ranges being range->nranges.
75 * After having called this function, the function value_is_in_range()
76 * determines whether a given number is within the range or not.<BR>
77 * In case of a single number, we make a range where low is equal to high.
78 * We take care on wrongly entered ranges; opposite order will be taken
81 * The following syntax is accepted :
83 * 1-20,30-40 Range from 1 to 20, and packets 30 to 40
84 * -20,30 Range from 1 to 20, and packet 30
85 * 20,30,40- 20, 30, and the range from 40 to the end
86 * 20-10,30-25 Range from 10 to 20, and from 25 to 30
88 * @param scope memory scope for the range
89 * @param range the range
90 * @param es points to the string to be converted.
91 * @param max_value specifies the maximum value in a range.
92 * @return convert_ret_t
94 WS_DLL_PUBLIC convert_ret_t range_convert_str(wmem_allocator_t *scope, range_t **range, const gchar *es,
97 WS_DLL_PUBLIC convert_ret_t range_convert_str_work(wmem_allocator_t *scope, range_t **range, const gchar *es,
98 guint32 max_value, gboolean err_on_max);
100 /** This function returns TRUE if a given value is within one of the ranges
101 * stored in the ranges array.
102 * @param range the range
103 * @param val the value to check
104 * @return TRUE if the value is in range
106 WS_DLL_PUBLIC gboolean value_is_in_range(range_t *range, guint32 val);
108 /** This function returns TRUE if val has successfully been added to
109 * a range. This may extend an existing range or create a new one
110 * @param scope memory scope of range (in case of reallocation)
111 * @param range to add value
112 * @param val value to add to range
113 * @return TRUE if the value is successsfully added to range
115 WS_DLL_PUBLIC gboolean range_add_value(wmem_allocator_t *scope, range_t **range, guint32 val);
117 /** This function returns TRUE if val has successfully been removed from
118 * a range. This may remove an existing range.
119 * @param scope memory scope of range (in case of reallocation)
120 * @param range to remove value
121 * @param val value to remove within range
122 * @return TRUE if the value is successsfully removed to range
124 WS_DLL_PUBLIC gboolean range_remove_value(wmem_allocator_t *scope, range_t **range, guint32 val);
126 /** This function returns TRUE if the two given range_t's are equal.
127 * @param a first range
128 * @param b second range
129 * @return TRUE if the value is in range
131 WS_DLL_PUBLIC gboolean ranges_are_equal(range_t *a, range_t *b);
133 /** This function calls the provided callback function for each value in
134 * in the range. Takes a pointer argument, which is passed to the
135 * callback, along with the value in the range.
136 * @param range the range
137 * @param callback the callback function
138 * @param ptr pointer passed to the callback
140 WS_DLL_PUBLIC void range_foreach(range_t *range, void (*callback)(guint32 val, gpointer ptr), gpointer ptr);
143 * This function converts a range_t to a (wmem_alloc()-allocated) string.
145 WS_DLL_PUBLIC char *range_convert_range(wmem_allocator_t *scope, const range_t *range);
148 * Create a (wmem-alloc()ed) copy of a range
149 * @param scope memory scope for the copied range
150 * @param src the range to copy
151 * @return ep allocated copy of the range
153 WS_DLL_PUBLIC range_t *range_copy(wmem_allocator_t *scope, range_t *src);
157 #endif /* __cplusplus */
159 #endif /* __RANGE_H__ */