usr.sbin/isdn/isdnd/dial.c

   1 /*
   2  * Copyright (c) 1997, 1999 Hellmuth Michaelis. All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  * 1. Redistributions of source code must retain the above copyright
   8  *    notice, this list of conditions and the following disclaimer.
   9  * 2. Redistributions in binary form must reproduce the above copyright
  10  *    notice, this list of conditions and the following disclaimer in the
  11  *    documentation and/or other materials provided with the distribution.
  12  *
  13  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  14  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  16  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  17  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  18  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  19  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  20  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  21  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  22  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  23  * SUCH DAMAGE.
  24  *
  25  *---------------------------------------------------------------------------
  26  *
  27  *      i4b daemon - dial handling routines
  28  *      -----------------------------------
  29  *
  30  *      $Id: dial.c,v 1.5 2003/10/06 09:43:27 itojun Exp $
  31  *
  32  * $FreeBSD$
  33  *
  34  *      last edit-date: [Mon Dec 13 21:45:51 1999]
  35  *
  36  *---------------------------------------------------------------------------*/
  37
  38 #include "isdnd.h"
  39
  40 /*---------------------------------------------------------------------------*
  41  *      select the first remote number to dial according to the
  42  *      dial strategy
  43  *---------------------------------------------------------------------------*/
  44 void
  45 select_first_dialno(struct cfg_entry *cep)
  46 {
  47         int i, j;
  48
  49         if (cep->remote_numbers_count < 1)
  50         {
  51                 logit(LL_ERR, "select_first_dialno: remote_numbers_count < 1!");
  52                 return;
  53         }
  54
  55         if (cep->remote_numbers_count == 1)
  56         {
  57                 strlcpy(cep->remote_phone_dialout,
  58                     cep->remote_numbers[0].number,
  59                     sizeof(cep->remote_phone_dialout));
  60                 DBGL(DL_DIAL, (logit(LL_DBG, "select_first_dialno: only one no, no = %s", cep->remote_phone_dialout)));
  61                 cep->last_remote_number = 0;
  62                 return;
  63         }
  64
  65         if (cep->remote_numbers_handling == RNH_FIRST)
  66         {
  67                 strlcpy(cep->remote_phone_dialout,
  68                     cep->remote_numbers[0].number,
  69                     sizeof(cep->remote_phone_dialout));
  70                 DBGL(DL_DIAL, (logit(LL_DBG, "select_first_dialno: use first, no = %s", cep->remote_phone_dialout)));
  71                 cep->last_remote_number = 0;
  72                 return;
  73         }
  74
  75         i = cep->last_remote_number;
  76
  77         for (j = cep->remote_numbers_count; j > 0; j--)
  78         {
  79                 if (cep->remote_numbers[i].flag == RNF_SUCC)
  80                 {
  81                         if (cep->remote_numbers_handling == RNH_LAST)
  82                         {
  83                                 strlcpy(cep->remote_phone_dialout,
  84                                     cep->remote_numbers[i].number,
  85                                     sizeof(cep->remote_phone_dialout));
  86                                 DBGL(DL_DIAL, (logit(LL_DBG, "select_first_dialno: use last, no = %s", cep->remote_phone_dialout)));
  87                                 cep->last_remote_number = i;
  88                                 return;
  89                         }
  90                         else
  91                         {
  92                                 if (++i >= cep->remote_numbers_count)
  93                                         i = 0;
  94
  95                                 strlcpy(cep->remote_phone_dialout,
  96                                     cep->remote_numbers[i].number,
  97                                     sizeof(cep->remote_phone_dialout));
  98                                 DBGL(DL_DIAL, (logit(LL_DBG, "select_first_dialno: use next, no = %s", cep->remote_phone_dialout)));
  99                                 cep->last_remote_number = i;
 100                                 return;
 101                         }
 102                 }
 103
 104                 if (++i >= cep->remote_numbers_count)
 105                         i = 0;
 106         }
 107         strlcpy(cep->remote_phone_dialout, cep->remote_numbers[0].number,
 108             sizeof(cep->remote_phone_dialout));
 109         DBGL(DL_DIAL, (logit(LL_DBG, "select_first_dialno: no last found (use 0), no = %s", cep->remote_phone_dialout)));
 110         cep->last_remote_number = 0;
 111 }
 112
 113 /*---------------------------------------------------------------------------*
 114  *      select next remote number to dial (last was unsuccesfull)
 115  *---------------------------------------------------------------------------*/
 116 void
 117 select_next_dialno(struct cfg_entry *cep)
 118 {
 119         if (cep->remote_numbers_count < 1)
 120         {
 121                 logit(LL_ERR, "select_next_dialno: remote_numbers_count < 1!");
 122                 return;
 123         }
 124
 125         if (cep->remote_numbers_count == 1)
 126         {
 127                 strlcpy(cep->remote_phone_dialout,
 128                     cep->remote_numbers[0].number,
 129                     sizeof(cep->remote_phone_dialout));
 130                 DBGL(DL_DIAL, (logit(LL_DBG, "select_next_dialno: only one no, no = %s", cep->remote_phone_dialout)));
 131                 cep->last_remote_number = 0;
 132                 return;
 133         }
 134
 135         /* mark last try as bad */
 136
 137         cep->remote_numbers[cep->last_remote_number].flag = RNF_IDLE;
 138
 139         /* next one to try */
 140
 141         cep->last_remote_number++;
 142
 143         if (cep->last_remote_number >= cep->remote_numbers_count)
 144                 cep->last_remote_number = 0;
 145
 146         strlcpy(cep->remote_phone_dialout,
 147             cep->remote_numbers[cep->last_remote_number].number,
 148             sizeof(cep->remote_phone_dialout));
 149
 150         DBGL(DL_DIAL, (logit(LL_DBG, "select_next_dialno: index=%d, no=%s",
 151                 cep->last_remote_number,
 152                 cep->remote_numbers[cep->last_remote_number].number)));
 153 }
 154
 155 /*---------------------------------------------------------------------------*
 156  *      dial succeded, store this number as the last successful
 157  *---------------------------------------------------------------------------*/
 158 void
 159 select_this_dialno(struct cfg_entry *cep)
 160 {
 161         cep->remote_numbers[cep->last_remote_number].flag = RNF_SUCC;
 162
 163         DBGL(DL_DIAL, (logit(LL_DBG, "select_this_dialno: index = %d, no = %s",
 164                 cep->last_remote_number,
 165                 cep->remote_numbers[cep->last_remote_number].number)));
 166 }
 167
 168 /* EOF */