comparison: src/protocols/zephyr/ZOpenPort.c
src/protocols/zephyr/ZOpenPort.c
- changeset 2086
- 007508451e2c
- child 7475
- 987384816492
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| 2085:4659ae7bc69c | 2086:007508451e2c |
|---|---|
| 1 /* This file is part of the Project Athena Zephyr Notification System. | |
| 2 * It contains source for the ZOpenPort function. | |
| 3 * | |
| 4 * Created by: Robert French | |
| 5 * | |
| 6 * $Source$ | |
| 7 * $Author: warmenhoven $ | |
| 8 * | |
| 9 * Copyright (c) 1987 by the Massachusetts Institute of Technology. | |
| 10 * For copying and distribution information, see the file | |
| 11 * "mit-copyright.h". | |
| 12 */ | |
| 13 /* $Header$ */ | |
| 14 | |
| 15 #ifndef lint | |
| 16 static char rcsid_ZOpenPort_c[] = "$Header$"; | |
| 17 #endif | |
| 18 | |
| 19 #include <internal.h> | |
| 20 #include <sys/socket.h> | |
| 21 | |
| 22 Code_t ZOpenPort(port) | |
| 23 u_short *port; | |
| 24 { | |
| 25 struct sockaddr_in bindin; | |
| 26 int len; | |
| 27 | |
| 28 (void) ZClosePort(); | |
| 29 | |
| 30 if ((__Zephyr_fd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) { | |
| 31 __Zephyr_fd = -1; | |
| 32 return (errno); | |
| 33 } | |
| 34 | |
| 35 #ifdef SO_BSDCOMPAT | |
| 36 { | |
| 37 int on = 1; | |
| 38 | |
| 39 setsockopt(__Zephyr_fd, SOL_SOCKET, SO_BSDCOMPAT, (char *)&on, | |
| 40 sizeof(on)); | |
| 41 } | |
| 42 #endif | |
| 43 | |
| 44 bindin.sin_family = AF_INET; | |
| 45 | |
| 46 if (port && *port) | |
| 47 bindin.sin_port = *port; | |
| 48 else | |
| 49 bindin.sin_port = 0; | |
| 50 | |
| 51 bindin.sin_addr.s_addr = INADDR_ANY; | |
| 52 | |
| 53 if (bind(__Zephyr_fd, (struct sockaddr *)&bindin, sizeof(bindin)) < 0) { | |
| 54 if (errno == EADDRINUSE && port && *port) | |
| 55 return (ZERR_PORTINUSE); | |
| 56 else | |
| 57 return (errno); | |
| 58 } | |
| 59 | |
| 60 if (!bindin.sin_port) { | |
| 61 len = sizeof(bindin); | |
| 62 if (getsockname(__Zephyr_fd, (struct sockaddr *)&bindin, &len)) | |
| 63 return (errno); | |
| 64 } | |
| 65 | |
| 66 __Zephyr_port = bindin.sin_port; | |
| 67 __Zephyr_open = 1; | |
| 68 | |
| 69 if (port) | |
| 70 *port = bindin.sin_port; | |
| 71 | |
| 72 return (ZERR_NONE); | |
| 73 } |
