]>
Commit | Line | Data |
---|---|---|
1 | /* | |
2 | * $Source$ | |
3 | * $Author$ | |
4 | * $Header$ | |
5 | * | |
6 | * Copyright (C) 1987, 1989 by the Massachusetts Institute of Technology | |
7 | * For copying and distribution information, please see the file | |
8 | * <mit-copyright.h>. | |
9 | * | |
10 | * This routine is part of the client library. It handles | |
11 | * the protocol operations: invoking an update and getting the | |
12 | * SMS message of the day. | |
13 | */ | |
14 | ||
15 | #ifndef lint | |
16 | static char *rcsid_sms_do_update_c = "$Header$"; | |
17 | #endif lint | |
18 | ||
19 | #include <mit-copyright.h> | |
20 | #include "sms_private.h" | |
21 | ||
22 | ||
23 | /* Invoke a DCM update. */ | |
24 | ||
25 | int sms_do_update() | |
26 | { | |
27 | int status; | |
28 | sms_params param_st; | |
29 | struct sms_params *params = NULL; | |
30 | struct sms_params *reply = NULL; | |
31 | ||
32 | CHECK_CONNECTED; | |
33 | params = ¶m_st; | |
34 | params->sms_version_no = sending_version_no; | |
35 | params->sms_procno = SMS_DO_UPDATE; | |
36 | params->sms_argc = 0; | |
37 | params->sms_argl = NULL; | |
38 | params->sms_argv = NULL; | |
39 | ||
40 | if ((status = sms_do_call(params, &reply)) == 0) | |
41 | status = reply->sms_status; | |
42 | ||
43 | sms_destroy_reply(reply); | |
44 | ||
45 | return status; | |
46 | } | |
47 | ||
48 | ||
49 | /* Get the SMS motd. This returns an SMS status, and motd will either | |
50 | * point to NULL or the motd in a static buffer. | |
51 | */ | |
52 | ||
53 | int sms_motd(motd) | |
54 | char **motd; | |
55 | { | |
56 | int status; | |
57 | sms_params param_st; | |
58 | struct sms_params *params = NULL; | |
59 | struct sms_params *reply = NULL; | |
60 | static char buffer[1024]; | |
61 | ||
62 | *motd = NULL; | |
63 | CHECK_CONNECTED; | |
64 | params = ¶m_st; | |
65 | params->sms_version_no = sending_version_no; | |
66 | params->sms_procno = SMS_MOTD; | |
67 | params->sms_argc = 0; | |
68 | params->sms_argl = NULL; | |
69 | params->sms_argv = NULL; | |
70 | ||
71 | if ((status = sms_do_call(params, &reply))) | |
72 | goto punt; | |
73 | ||
74 | while ((status = reply->sms_status) == SMS_MORE_DATA) { | |
75 | if (reply->sms_argc > 0) { | |
76 | strncpy(buffer, reply->sms_argv[0], sizeof(buffer)); | |
77 | *motd = buffer; | |
78 | } | |
79 | sms_destroy_reply(reply); | |
80 | reply = NULL; | |
81 | ||
82 | initialize_operation(_sms_recv_op, sms_start_recv, &reply, | |
83 | (int (*)())NULL); | |
84 | queue_operation(_sms_conn, CON_INPUT, _sms_recv_op); | |
85 | ||
86 | sms_complete_operation(_sms_recv_op); | |
87 | if (OP_STATUS(_sms_recv_op) != OP_COMPLETE) { | |
88 | sms_disconnect(); | |
89 | status = SMS_ABORTED; | |
90 | return(status); | |
91 | } | |
92 | } | |
93 | punt: | |
94 | sms_destroy_reply(reply); | |
95 | /* for backwards compatability */ | |
96 | if (status == SMS_UNKNOWN_PROC) | |
97 | return(0); | |
98 | else | |
99 | return(status); | |
100 | } | |
101 | ||
102 | ||
103 | /* Tell the library to take care of another input source while it is | |
104 | * processing a query. For instance, an X toolkit application would | |
105 | * do something like | |
106 | * sms_set_alternate_input(ConnectionNumber(XtDisplay(widget)), doxinput); | |
107 | * where doxinput is defined as: | |
108 | * doxinput() { | |
109 | * extern Widget toplevel; | |
110 | * XEvent event; | |
111 | * while (XPending(XtDisplay(toplevel))) { | |
112 | * XNextEvent(XtDisplay(toplevel), &event); | |
113 | * XtDispatchEvent(&event); | |
114 | * } | |
115 | * XFlush(XtDisplay(toplevel)); | |
116 | * } | |
117 | */ | |
118 | ||
119 | static int sms_alternate_input = 0; | |
120 | static int (*sms_alternate_handler)(); | |
121 | ||
122 | int sms_set_alternate_input(fd, proc) | |
123 | int fd; | |
124 | int (*proc)(); | |
125 | { | |
126 | if (sms_alternate_input != 0) | |
127 | return(SMS_ALREADY_CONNECTED); | |
128 | sms_alternate_input = fd; | |
129 | sms_alternate_handler = proc; | |
130 | return(SMS_SUCCESS); | |
131 | } | |
132 | ||
133 | ||
134 | /* This is used by the parts of the library that must wait for GDB. It | |
135 | * handles alternate input streams (such as X) as well. | |
136 | */ | |
137 | ||
138 | sms_complete_operation(op) | |
139 | OPERATION op; | |
140 | { | |
141 | long infd, outfd, exfd; | |
142 | int rc; | |
143 | ||
144 | gdb_progress(); /* try for an immediate completion */ | |
145 | ||
146 | if (sms_alternate_input == 0) | |
147 | return(complete_operation(op)); | |
148 | ||
149 | infd = (1<<sms_alternate_input); | |
150 | outfd = exfd = 0; | |
151 | ||
152 | while(op->status != OP_COMPLETE && op->status != OP_CANCELLED) { | |
153 | rc = con_select(sms_alternate_input, (fd_set *)&infd, (fd_set *)&outfd, | |
154 | (fd_set *)&exfd, (struct timeval *)NULL); | |
155 | if (rc > 0 && sms_alternate_handler) { | |
156 | (*sms_alternate_handler)(); | |
157 | } | |
158 | } | |
159 | return(op->status); | |
160 | } | |
161 |