LXR busybox/networking/tcpudp

   1/* 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 source tree.
   8 */
   9
  10#include "libbb.h"
  11#include "tcpudp_perhost.h"
  12
  13struct hcc* FAST_FUNC ipsvd_perhost_init(unsigned c)
  14{
  15//      free(cc);
  16        struct hcc *cc = xzalloc((c + 1) * sizeof(*cc));
  17        cc[c].pid = -1; /* "end" marker */
  18        return cc;
  19}
  20
  21unsigned FAST_FUNC ipsvd_perhost_add(struct hcc *cc, char *ip, unsigned maxconn, struct hcc **hccpp)
  22{
  23        unsigned i;
  24        unsigned conn = 1;
  25        int freepos = -1;
  26
  27        for (i = 0; cc[i].pid >= 0; ++i) {
  28                if (!cc[i].ip) {
  29                        freepos = i;
  30                        continue;
  31                }
  32                if (strcmp(cc[i].ip, ip) == 0) {
  33                        conn++;
  34                        continue;
  35                }
  36        }
  37        if (freepos == -1) return 0;
  38        if (conn <= maxconn) {
  39                cc[freepos].ip = ip;
  40                *hccpp = &cc[freepos];
  41        }
  42        return conn;
  43}
  44
  45void FAST_FUNC ipsvd_perhost_remove(struct hcc *cc, int pid)
  46{
  47        unsigned i;
  48        for (i = 0; cc[i].pid >= 0; ++i) {
  49                if (cc[i].pid == pid) {
  50                        free(cc[i].ip);
  51                        cc[i].ip = NULL;
  52                        cc[i].pid = 0;
  53                        return;
  54                }
  55        }
  56}
  57
  58//void ipsvd_perhost_free(struct hcc *cc)
  59//{
  60//      free(cc);
  61//}
  62