comparison: src/protocols/zephyr/ZhmStat.c
src/protocols/zephyr/ZhmStat.c
- changeset 2419
- beb509dd2935
- child 8792
- b0645c9dc276
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| 2418:0de851709972 | 2419:beb509dd2935 |
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| 1 /* This file is part of the Project Athena Zephyr Notification System. | |
| 2 * It contains the ZhmStat() function. | |
| 3 * | |
| 4 * Created by: Marc Horowitz | |
| 5 * | |
| 6 * $Id: ZhmStat.c 2432 2001-10-03 19:38:28Z warmenhoven $ | |
| 7 * | |
| 8 * Copyright (c) 1996 by the Massachusetts Institute of Technology. | |
| 9 * For copying and distribution information, see the file | |
| 10 * "mit-copyright.h". | |
| 11 */ | |
| 12 | |
| 13 #include <internal.h> | |
| 14 #include <sys/socket.h> | |
| 15 | |
| 16 #ifndef INADDR_LOOPBACK | |
| 17 #define INADDR_LOOPBACK 0x7f000001 | |
| 18 #endif | |
| 19 | |
| 20 Code_t ZhmStat(hostaddr, notice) | |
| 21 struct in_addr *hostaddr; | |
| 22 ZNotice_t *notice; | |
| 23 { | |
| 24 struct servent *sp; | |
| 25 struct sockaddr_in sin; | |
| 26 ZNotice_t req; | |
| 27 Code_t code; | |
| 28 struct timeval tv; | |
| 29 fd_set readers; | |
| 30 | |
| 31 (void) memset((char *)&sin, 0, sizeof(struct sockaddr_in)); | |
| 32 | |
| 33 sp = getservbyname(HM_SVCNAME, "udp"); | |
| 34 | |
| 35 sin.sin_port = (sp) ? sp->s_port : HM_SVC_FALLBACK; | |
| 36 sin.sin_family = AF_INET; | |
| 37 | |
| 38 if (hostaddr) | |
| 39 sin.sin_addr = *hostaddr; | |
| 40 else | |
| 41 sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK); | |
| 42 | |
| 43 (void) memset((char *)&req, 0, sizeof(req)); | |
| 44 req.z_kind = STAT; | |
| 45 req.z_port = 0; | |
| 46 req.z_class = HM_STAT_CLASS; | |
| 47 req.z_class_inst = HM_STAT_CLIENT; | |
| 48 req.z_opcode = HM_GIMMESTATS; | |
| 49 req.z_sender = ""; | |
| 50 req.z_recipient = ""; | |
| 51 req.z_default_format = ""; | |
| 52 req.z_message_len = 0; | |
| 53 | |
| 54 if ((code = ZSetDestAddr(&sin)) != ZERR_NONE) | |
| 55 return(code); | |
| 56 | |
| 57 if ((code = ZSendNotice(&req, ZNOAUTH)) != ZERR_NONE) | |
| 58 return(code); | |
| 59 | |
| 60 /* Wait up to ten seconds for a response. */ | |
| 61 FD_ZERO(&readers); | |
| 62 FD_SET(ZGetFD(), &readers); | |
| 63 tv.tv_sec = 10; | |
| 64 tv.tv_usec = 0; | |
| 65 code = select(ZGetFD() + 1, &readers, NULL, NULL, &tv); | |
| 66 if (code < 0 && errno != EINTR) | |
| 67 return(errno); | |
| 68 if (code == 0 || (code < 0 && errno == EINTR) || ZPending() == 0) | |
| 69 return(ZERR_HMDEAD); | |
| 70 | |
| 71 return(ZReceiveNotice(notice, (struct sockaddr_in *) 0)); | |
| 72 } |
