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/* services.c
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "services.h"
#include <stdlib.h>
#include "services-data.c"
static int
compare_entry(const void *a, const void *b)
{
return *(const uint16_t *)a - ((const ws_services_entry_t *)b)->port;
}
static inline
size_t global_tcp_udp_services_table_count(void)
{
return G_N_ELEMENTS(global_tcp_udp_services_table);
}
static inline
size_t global_tcp_services_table_count(void)
{
return G_N_ELEMENTS(global_tcp_services_table);
}
static inline
size_t global_udp_services_table_count(void)
{
return G_N_ELEMENTS(global_udp_services_table);
}
static inline
size_t global_sctp_services_table_count(void)
{
return G_N_ELEMENTS(global_sctp_services_table);
}
static inline
size_t global_dccp_services_table_count(void)
{
return G_N_ELEMENTS(global_dccp_services_table);
}
ws_services_entry_t *
global_services_lookup(uint16_t value, ws_services_proto_t proto)
{
ws_services_entry_t *list1 = NULL, *list2 = NULL;
size_t list1_size, list2_size;
ws_services_entry_t *found;
switch (proto) {
case ws_tcp:
list1 = global_tcp_udp_services_table;
list1_size = global_tcp_udp_services_table_count();
list2 = global_tcp_services_table;
list2_size = global_tcp_services_table_count();
break;
case ws_udp:
list1 = global_tcp_udp_services_table;
list1_size = global_tcp_udp_services_table_count();
list2 = global_udp_services_table;
list2_size = global_udp_services_table_count();
break;
case ws_sctp:
list1 = global_sctp_services_table;
list1_size = global_sctp_services_table_count();
break;
case ws_dccp:
list1 = global_dccp_services_table;
list1_size = global_dccp_services_table_count();
break;
default:
ws_assert_not_reached();
}
if (list1) {
found = bsearch(&value, list1, list1_size, sizeof(ws_services_entry_t), compare_entry);
if (found) {
return found;
}
}
if (list2) {
found = bsearch(&value, list2, list2_size, sizeof(ws_services_entry_t), compare_entry);
if (found) {
return found;
}
}
return NULL;
}
void
global_services_dump(FILE *fp)
{
ws_services_entry_t *ptr;
/* Brute-force approach... */
for (uint16_t num = 0; num <= _services_max_port && num < UINT16_MAX; num++) {
/* TCP */
ptr = global_services_lookup(num, ws_tcp);
if (ptr != NULL) {
fprintf(fp, "%s\t%"PRIu16"\ttcp\t%s\n", ptr->name, num, ptr->description);
}
/* UDP */
ptr = global_services_lookup(num, ws_udp);
if (ptr != NULL) {
fprintf(fp, "%s\t%"PRIu16"\tudp\t%s\n", ptr->name, num, ptr->description);
}
/* SCTP */
ptr = global_services_lookup(num, ws_sctp);
if (ptr != NULL) {
fprintf(fp, "%s\t%"PRIu16"\tsctp\t%s\n", ptr->name, num, ptr->description);
}
/* DCCP */
ptr = global_services_lookup(num, ws_dccp);
if (ptr != NULL) {
fprintf(fp, "%s\t%"PRIu16"\tdccp\t%s\n", ptr->name, num, ptr->description);
}
}
}
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