forked from osmocom/wireshark
![Dario Lombardo](/assets/img/avatar_default.png)
Skipping dissectors dir for now. Change-Id: I717b66bfbc7cc81b83f8c2cbc011fcad643796aa Reviewed-on: https://code.wireshark.org/review/25694 Petri-Dish: Dario Lombardo <lomato@gmail.com> Tested-by: Petri Dish Buildbot Reviewed-by: Anders Broman <a.broman58@gmail.com>
148 lines
4.7 KiB
C
148 lines
4.7 KiB
C
/* range.h
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* Range routines
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*
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* Dick Gooris <gooris@lucent.com>
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* Ulf Lamping <ulf.lamping@web.de>
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#ifndef __RANGE_H__
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#define __RANGE_H__
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#include <glib.h>
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#include "ws_symbol_export.h"
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#include <epan/wmem/wmem.h>
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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/** @file
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* Range strings a variant of value_strings
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*/
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/**@todo where's the best place for these? */
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#define MAX_SCTP_PORT 65535
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#define MAX_TCP_PORT 65535
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#define MAX_UDP_PORT 65535
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#define MAX_DCCP_PORT 65535
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typedef struct range_admin_tag {
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guint32 low;
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guint32 high;
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} range_admin_t;
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#define RANGE_ADMIN_T_INITIALIZER { 0, 0 }
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/** user specified range(s) */
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typedef struct epan_range {
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guint nranges; /**< number of entries in ranges */
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range_admin_t ranges[1]; /**< variable-length array */
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} range_t;
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/**
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* Return value from range_convert_str().
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*/
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typedef enum {
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CVT_NO_ERROR,
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CVT_SYNTAX_ERROR,
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CVT_NUMBER_TOO_BIG
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} convert_ret_t;
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WS_DLL_PUBLIC range_t *range_empty(wmem_allocator_t *scope);
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/*** Converts a range string to a fast comparable array of ranges.
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* This function allocates a range_t large enough to hold the number
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* of ranges specified, and fills the array range->ranges containing
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* low and high values with the number of ranges being range->nranges.
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* After having called this function, the function value_is_in_range()
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* determines whether a given number is within the range or not.<BR>
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* In case of a single number, we make a range where low is equal to high.
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* We take care on wrongly entered ranges; opposite order will be taken
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* care of.
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*
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* The following syntax is accepted :
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*
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* 1-20,30-40 Range from 1 to 20, and packets 30 to 40
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* -20,30 Range from 1 to 20, and packet 30
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* 20,30,40- 20, 30, and the range from 40 to the end
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* 20-10,30-25 Range from 10 to 20, and from 25 to 30
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* - All values
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* @param scope memory scope for the range
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* @param range the range
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* @param es points to the string to be converted.
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* @param max_value specifies the maximum value in a range.
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* @return convert_ret_t
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*/
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WS_DLL_PUBLIC convert_ret_t range_convert_str(wmem_allocator_t *scope, range_t **range, const gchar *es,
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guint32 max_value);
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WS_DLL_PUBLIC convert_ret_t range_convert_str_work(wmem_allocator_t *scope, range_t **range, const gchar *es,
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guint32 max_value, gboolean err_on_max);
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/** This function returns TRUE if a given value is within one of the ranges
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* stored in the ranges array.
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* @param range the range
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* @param val the value to check
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* @return TRUE if the value is in range
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*/
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WS_DLL_PUBLIC gboolean value_is_in_range(range_t *range, guint32 val);
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/** This function returns TRUE if val has successfully been added to
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* a range. This may extend an existing range or create a new one
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* @param scope memory scope of range (in case of reallocation)
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* @param range to add value
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* @param val value to add to range
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* @return TRUE if the value is successsfully added to range
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*/
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WS_DLL_PUBLIC gboolean range_add_value(wmem_allocator_t *scope, range_t **range, guint32 val);
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/** This function returns TRUE if val has successfully been removed from
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* a range. This may remove an existing range.
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* @param scope memory scope of range (in case of reallocation)
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* @param range to remove value
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* @param val value to remove within range
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* @return TRUE if the value is successsfully removed to range
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*/
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WS_DLL_PUBLIC gboolean range_remove_value(wmem_allocator_t *scope, range_t **range, guint32 val);
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/** This function returns TRUE if the two given range_t's are equal.
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* @param a first range
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* @param b second range
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* @return TRUE if the value is in range
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*/
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WS_DLL_PUBLIC gboolean ranges_are_equal(range_t *a, range_t *b);
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/** This function calls the provided callback function for each value in
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* in the range. Takes a pointer argument, which is passed to the
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* callback, along with the value in the range.
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* @param range the range
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* @param callback the callback function
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* @param ptr pointer passed to the callback
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*/
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WS_DLL_PUBLIC void range_foreach(range_t *range, void (*callback)(guint32 val, gpointer ptr), gpointer ptr);
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/**
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* This function converts a range_t to a (wmem_alloc()-allocated) string.
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*/
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WS_DLL_PUBLIC char *range_convert_range(wmem_allocator_t *scope, const range_t *range);
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/**
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* Create a (wmem-alloc()ed) copy of a range
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* @param scope memory scope for the copied range
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* @param src the range to copy
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* @return ep allocated copy of the range
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*/
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WS_DLL_PUBLIC range_t *range_copy(wmem_allocator_t *scope, range_t *src);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __RANGE_H__ */
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