1 /* MasqMail

2 Copyright (C) 2000 Oliver Kurth

3

4 This program is free software; you can redistribute it and/or modify

5 it under the terms of the GNU General Public License as published by

6 the Free Software Foundation; either version 2 of the License, or

7 (at your option) any later version.

8

9 This program is distributed in the hope that it will be useful,

10 but WITHOUT ANY WARRANTY; without even the implied warranty of

11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

12 GNU General Public License for more details.

13

14 You should have received a copy of the GNU General Public License

15 along with this program; if not, write to the Free Software

16 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

17 */

18

19 #include "masqmail.h"

20

21 /* define if you get problems... */

22 /*#define SOCKADDR_OLD 1*/

23

24 gboolean

25 init_sockaddr(struct sockaddr_in * name, interface * iface)

26 {

27 struct hostent *he;

28 struct in_addr ia;

29

30 #ifdef SOCKADDR_OLD

31 /* here I tried to be intelligent and failed. */

32 if (isalpha(iface->address[0])) {

33 if ((he = gethostbyname(iface->address)) == NULL) {

34 logwrite(LOG_ALERT, "local address '%s' unknown. (deleting)\n", iface->address);

35 return FALSE;

36 }

37 memcpy(&(name->sin_addr), he->h_addr, sizeof(name->sin_addr));

38 } else if (isdigit(iface->address[0])) {

39 if (inet_aton(iface->address, &ia)) {

40 memcpy(&(name->sin_addr), &ia, sizeof(name->sin_addr));

41 } else {

42 logwrite(LOG_ALERT, "invalid address '%s': inet_aton() failed (deleting)\n", iface->address);

43 return FALSE;

44 }

45 } else {

46 logwrite(LOG_ALERT, "invalid address '%s', should begin with a aphanumeric (deleting)\n", iface->address);

47 return FALSE;

48 }

49 #else

50 /* this is how others to it. I follow the crowd... */

51 if (inet_aton(iface->address, &ia) != 0) {

52 /* IP address */

53 memcpy(&(name->sin_addr), &ia, sizeof(name->sin_addr));

54 } else {

55 if ((he = gethostbyname(iface->address)) == NULL) {

56 logwrite(LOG_ALERT, "local address '%s' unknown. (deleting)\n", iface->address);

57 return FALSE;

58 }

59 memcpy(&(name->sin_addr), he->h_addr, sizeof(name->sin_addr));

60 }

61 #endif

62 name->sin_family = AF_INET;

63 name->sin_port = htons(iface->port);

64

65 return TRUE;

66 }

67

68 int

69 make_server_socket(interface * iface)

70 {

71 int sock = -1;

72 struct sockaddr_in server;

73

74 memset(&server, 0, sizeof(struct sockaddr_in));

75

76 /* Create the socket. */

77 sock = socket(PF_INET, SOCK_STREAM, 0);

78 if (sock < 0) {

79 logwrite(LOG_ALERT, "socket: %s\n", strerror(errno));

80 return -1;

81 }

82

83 if (init_sockaddr(&server, iface)) {

84 /* bind the socket */

85 if (bind(sock, (struct sockaddr *) &server, sizeof(server)) < 0) {

86 logwrite(LOG_ALERT, "bind: %s\n", strerror(errno));

87 return -1;

88 }

89 } else {

90 close(sock);

91 return -1;

92 }

93

94 return sock;

95 }