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annotate src/interface.c @ 384:4848c16ed1c1

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Beautifying.
author markus schnalke <meillo@marmaro.de>
date Thu, 16 Feb 2012 11:22:31 +0100
parents b27f66555ba8
children 164468dd0953
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1 /*
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2 ** MasqMail
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3 ** Copyright (C) 2000 Oliver Kurth
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4 **
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5 ** This program is free software; you can redistribute it and/or modify
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6 ** it under the terms of the GNU General Public License as published by
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7 ** the Free Software Foundation; either version 2 of the License, or
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8 ** (at your option) any later version.
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9 **
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10 ** This program is distributed in the hope that it will be useful,
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11 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 ** GNU General Public License for more details.
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14 **
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15 ** You should have received a copy of the GNU General Public License
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16 ** along with this program; if not, write to the Free Software
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17 ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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18 */
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19
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20 #include "masqmail.h"
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21
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22 /* define if you get problems... */
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23 /* #define SOCKADDR_OLD 1 */
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25 gboolean
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26 init_sockaddr(struct sockaddr_in *name, interface *iface)
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27 {
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28 struct hostent *he;
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29 struct in_addr ia;
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30
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31 #ifdef SOCKADDR_OLD
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32 /* here I tried to be intelligent and failed. */
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33 if (isalpha(iface->address[0])) {
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34 if ((he = gethostbyname(iface->address)) == NULL) {
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35 logwrite(LOG_ALERT, "local address '%s' unknown. (deleting)\n", iface->address);
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36 return FALSE;
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37 }
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38 memcpy(&(name->sin_addr), he->h_addr, sizeof(name->sin_addr));
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39 } else if (isdigit(iface->address[0])) {
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40 if (inet_aton(iface->address, &ia)) {
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41 memcpy(&(name->sin_addr), &ia, sizeof(name->sin_addr));
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42 } else {
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43 logwrite(LOG_ALERT, "invalid address '%s': inet_aton() failed (deleting)\n", iface->address);
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44 return FALSE;
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45 }
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46 } else {
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47 logwrite(LOG_ALERT, "invalid address '%s', should begin with a aphanumeric (deleting)\n", iface->address);
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48 return FALSE;
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49 }
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50 #else
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51 /* this is how others to it. I follow the crowd... */
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52 if (inet_aton(iface->address, &ia) != 0) {
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53 /* IP address */
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54 memcpy(&(name->sin_addr), &ia, sizeof(name->sin_addr));
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55 } else {
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56 if ((he = gethostbyname(iface->address)) == NULL) {
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57 logwrite(LOG_ALERT, "local address '%s' unknown. (deleting)\n", iface->address);
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58 return FALSE;
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59 }
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60 memcpy(&(name->sin_addr), he->h_addr, sizeof(name->sin_addr));
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61 }
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62 #endif
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63 name->sin_family = AF_INET;
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64 name->sin_port = htons(iface->port);
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65
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66 return TRUE;
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67 }
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68
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69 int
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70 make_server_socket(interface *iface)
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71 {
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72 int sock = -1;
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73 struct sockaddr_in server;
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74
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75 memset(&server, 0, sizeof(struct sockaddr_in));
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76
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77 /* Create the socket. */
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78 sock = socket(PF_INET, SOCK_STREAM, 0);
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79 if (sock < 0) {
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80 logwrite(LOG_ALERT, "socket: %s\n", strerror(errno));
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81 return -1;
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82 }
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83
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84 if (init_sockaddr(&server, iface)) {
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85 /* bind the socket */
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86 if (bind(sock, (struct sockaddr *) &server, sizeof(server)) < 0) {
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87 logwrite(LOG_ALERT, "bind: %s\n", strerror(errno));
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88 return -1;
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89 }
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90 } else {
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91 close(sock);
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92 return -1;
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93 }
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94
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95 return sock;
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96 }