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Commit | Line | Data |
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fa59b86f | 1 | /* $Id$ |
de56407f | 2 | * |
7ac48069 | 3 | * This routine is part of the client library. It handles |
4 | * the protocol operations: invoking an update and getting the | |
5 | * Moira message of the day. | |
5eaef520 | 6 | * |
7ac48069 | 7 | * Copyright (C) 1987-1998 by the Massachusetts Institute of Technology |
8 | * For copying and distribution information, please see the file | |
9 | * <mit-copyright.h>. | |
de56407f | 10 | */ |
11 | ||
babbc197 | 12 | #include <mit-copyright.h> |
7ac48069 | 13 | #include <moira.h> |
8defc06b | 14 | #include "mr_private.h" |
de56407f | 15 | |
a3bbcc2b | 16 | #include <errno.h> |
6c0f18be | 17 | #include <stdio.h> |
a3bbcc2b | 18 | #include <stdlib.h> |
7ac48069 | 19 | #include <string.h> |
20 | ||
21 | RCSID("$Header$"); | |
5f9f27e4 | 22 | |
23 | /* Invoke a DCM update. */ | |
24 | ||
5eaef520 | 25 | int mr_do_update(void) |
de56407f | 26 | { |
5eaef520 | 27 | int status; |
85330553 | 28 | mr_params params, reply; |
de56407f | 29 | |
5eaef520 | 30 | CHECK_CONNECTED; |
85330553 | 31 | params.u.mr_procno = MR_DO_UPDATE; |
32 | params.mr_argc = 0; | |
33 | params.mr_argl = NULL; | |
34 | params.mr_argv = NULL; | |
5eaef520 | 35 | |
85330553 | 36 | if ((status = mr_do_call(¶ms, &reply)) == MR_SUCCESS) |
37 | status = reply.u.mr_status; | |
5eaef520 | 38 | |
39 | mr_destroy_reply(reply); | |
40 | ||
41 | return status; | |
de56407f | 42 | } |
43 | ||
5f9f27e4 | 44 | |
59ec8dae | 45 | /* Get the Moira motd. This returns a Moira status, and motd will either |
5f9f27e4 | 46 | * point to NULL or the motd in a static buffer. |
de56407f | 47 | */ |
5f9f27e4 | 48 | |
5eaef520 | 49 | int mr_motd(char **motd) |
5f9f27e4 | 50 | { |
5eaef520 | 51 | int status; |
85330553 | 52 | mr_params params, reply; |
a3bbcc2b | 53 | static char *buffer = NULL; |
5eaef520 | 54 | |
55 | *motd = NULL; | |
56 | CHECK_CONNECTED; | |
85330553 | 57 | params.u.mr_procno = MR_MOTD; |
58 | params.mr_argc = 0; | |
59 | params.mr_argl = NULL; | |
60 | params.mr_argv = NULL; | |
61 | ||
62 | if ((status = mr_do_call(¶ms, &reply))) | |
5eaef520 | 63 | goto punt; |
64 | ||
85330553 | 65 | while ((status = reply.u.mr_status) == MR_MORE_DATA) |
5eaef520 | 66 | { |
85330553 | 67 | if (reply.mr_argc > 0) |
5eaef520 | 68 | { |
85330553 | 69 | buffer = realloc(buffer, reply.mr_argl[0] + 1); |
a3bbcc2b | 70 | if (!buffer) |
71 | { | |
72 | mr_disconnect(); | |
73 | return ENOMEM; | |
74 | } | |
85330553 | 75 | strcpy(buffer, reply.mr_argv[0]); |
5eaef520 | 76 | *motd = buffer; |
5f9f27e4 | 77 | } |
5eaef520 | 78 | mr_destroy_reply(reply); |
85330553 | 79 | if (mr_receive(_mr_conn, &reply) != MR_SUCCESS) |
5eaef520 | 80 | { |
81 | mr_disconnect(); | |
85330553 | 82 | return MR_ABORTED; |
5f9f27e4 | 83 | } |
5eaef520 | 84 | } |
85 | punt: | |
86 | mr_destroy_reply(reply); | |
85330553 | 87 | |
88 | return status; | |
5f9f27e4 | 89 | } |
6c0f18be | 90 | |
91 | /* Exchange query version info with the server. */ | |
92 | ||
93 | int mr_version(int version) | |
94 | { | |
95 | int status; | |
96 | mr_params params, reply; | |
97 | char vbuf[10], *arg; | |
98 | ||
99 | CHECK_CONNECTED; | |
100 | ||
101 | sprintf(vbuf, "%d", version); | |
102 | arg = strdup(vbuf); | |
103 | params.u.mr_procno = MR_SETVERSION; | |
104 | params.mr_argc = 1; | |
105 | params.mr_argl = NULL; | |
106 | params.mr_argv = &arg; | |
107 | ||
108 | status = mr_do_call(¶ms, &reply); | |
109 | free(arg); | |
110 | ||
111 | if (status == MR_SUCCESS) | |
112 | { | |
113 | status = reply.u.mr_status; | |
114 | ||
115 | if (status == MR_VERSION_LOW && getenv("MOIRA_LOW_VERSION_WARNING")) | |
116 | fprintf(stderr, "Warning: This client is out of date.\n"); | |
117 | } | |
118 | mr_destroy_reply(reply); | |
119 | ||
120 | return status; | |
121 | } |