busybox/networking/tcpudp_perhost.c

/* Based on ipsvd utilities written by Gerrit Pape <pape@smarden.org>
 * which are released into public domain by the author.
 * Homepage: http://smarden.sunsite.dk/ipsvd/
 *
 * Copyright (C) 2007 Denys Vlasenko.
 *
 * Licensed under GPLv2, see file LICENSE in this tarball for details.
 */

#include "libbb.h"
#include "tcpudp_perhost.h"

static struct hcc *cc;
static unsigned cclen;

/* to be optimized */

void ipsvd_perhost_init(unsigned c)
{
//	free(cc);
	cc = xzalloc(c * sizeof(*cc));
	cclen = c;
}

unsigned ipsvd_perhost_add(char *ip, unsigned maxconn, struct hcc **hccpp)
{
	unsigned i;
	unsigned conn = 1;
	int freepos = -1;

	for (i = 0; i < cclen; ++i) {
		if (!cc[i].ip) {
			freepos = i;
			continue;
		}
		if (strcmp(cc[i].ip, ip) == 0) {
			conn++;
			continue;
		}
	}
	if (freepos == -1) return 0;
	if (conn <= maxconn) {
		cc[freepos].ip = ip;
		*hccpp = &cc[freepos];
	}
	return conn;
}

void ipsvd_perhost_remove(int pid)
{
	unsigned i;
	for (i = 0; i < cclen; ++i) {
		if (cc[i].pid == pid) {
			free(cc[i].ip);
			cc[i].ip = NULL;
			cc[i].pid = 0;
			return;
		}
	}
}

//void ipsvd_perhost_free(void)
//{
//	free(cc);
//}
1	niro	816	/* Based on ipsvd utilities written by Gerrit Pape <pape@smarden.org>
2			* which are released into public domain by the author.
3			* Homepage: http://smarden.sunsite.dk/ipsvd/
4			*
5			* Copyright (C) 2007 Denys Vlasenko.
6			*
7			* Licensed under GPLv2, see file LICENSE in this tarball for details.
8			*/
9
10			#include "libbb.h"
11			#include "tcpudp_perhost.h"
12
13			static struct hcc *cc;
14			static unsigned cclen;
15
16			/* to be optimized */
17
18			void ipsvd_perhost_init(unsigned c)
19			{
20			// free(cc);
21			cc = xzalloc(c * sizeof(*cc));
22			cclen = c;
23			}
24
25			unsigned ipsvd_perhost_add(char ip, unsigned maxconn, struct hcc *hccpp)
26			{
27			unsigned i;
28			unsigned conn = 1;
29			int freepos = -1;
30
31			for (i = 0; i < cclen; ++i) {
32			if (!cc[i].ip) {
33			freepos = i;
34			continue;
35			}
36			if (strcmp(cc[i].ip, ip) == 0) {
37			conn++;
38			continue;
39			}
40			}
41			if (freepos == -1) return 0;
42			if (conn <= maxconn) {
43			cc[freepos].ip = ip;
44			*hccpp = &cc[freepos];
45			}
46			return conn;
47			}
48
49			void ipsvd_perhost_remove(int pid)
50			{
51			unsigned i;
52			for (i = 0; i < cclen; ++i) {
53			if (cc[i].pid == pid) {
54			free(cc[i].ip);
55			cc[i].ip = NULL;
56			cc[i].pid = 0;
57			return;
58			}
59			}
60			}
61
62			//void ipsvd_perhost_free(void)
63			//{
64			// free(cc);
65			//}