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Commit | Line | Data |
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c441a31a | 1 | /* $Id$ |
6e6374cb | 2 | * |
7ac48069 | 3 | * Bare-bones Moira client |
6e6374cb | 4 | * |
7ac48069 | 5 | * Copyright (C) 1987-1998 by the Massachusetts Institute of Technology |
6 | * For copying and distribution information, please see the file | |
7 | * <mit-copyright.h>. | |
6e6374cb | 8 | */ |
9 | ||
c801de4c | 10 | #include <mit-copyright.h> |
8defc06b | 11 | #include <moira.h> |
7ac48069 | 12 | |
13 | #include <errno.h> | |
14 | #include <fcntl.h> | |
f281aa29 | 15 | #include <setjmp.h> |
16 | #include <signal.h> | |
7ac48069 | 17 | #include <stdio.h> |
18 | #include <stdlib.h> | |
19 | #include <string.h> | |
20 | #include <unistd.h> | |
f281aa29 | 21 | |
22 | #ifdef USE_READLINE | |
23 | #include "readline.h" | |
7ac48069 | 24 | #include "history.h" |
f281aa29 | 25 | #endif |
6e6374cb | 26 | |
7ac48069 | 27 | RCSID("$Header$"); |
28 | ||
fcb0b7fa | 29 | int recursion = 0, interactive; |
5eaef520 | 30 | int count, quit = 0, cancel = 0; |
1a5c774c | 31 | char *whoami; |
74c84b52 | 32 | sigjmp_buf jb; |
1a5c774c | 33 | |
34 | #define MAXARGS 20 | |
6e6374cb | 35 | |
7ac48069 | 36 | void discard_input(void); |
37 | char *mr_gets(char *prompt, char *buf, size_t len); | |
38 | void execute_line(char *cmdbuf); | |
39 | int parse(char *buf, char *argv[MAXARGS]); | |
40 | int print_reply(int argc, char **argv, void *hint); | |
41 | void test_noop(void); | |
42 | void test_connect(int argc, char **argv); | |
43 | void test_disconnect(void); | |
44 | void test_host(void); | |
7ac48069 | 45 | void test_motd(void); |
46 | void test_query(int argc, char **argv); | |
47 | void test_auth(void); | |
48 | void test_access(int argc, char **argv); | |
49 | void test_dcm(void); | |
50 | void test_script(int argc, char **argv); | |
51 | void test_list_requests(void); | |
f281aa29 | 52 | |
5eaef520 | 53 | int main(int argc, char **argv) |
54 | { | |
55 | char cmdbuf[BUFSIZ]; | |
56 | struct sigaction action; | |
6e6374cb | 57 | |
5eaef520 | 58 | whoami = argv[0]; |
59 | interactive = (isatty(0) && isatty(1)); | |
3442308f | 60 | |
5eaef520 | 61 | initialize_sms_error_table(); |
62 | initialize_krb_error_table(); | |
63 | ||
64 | #ifdef USE_READLINE | |
65 | /* we don't want filename completion */ | |
66 | rl_bind_key('\t', rl_insert); | |
74c84b52 | 67 | #endif |
f281aa29 | 68 | |
5eaef520 | 69 | action.sa_handler = discard_input; |
70 | action.sa_flags = 0; | |
71 | sigemptyset(&action.sa_mask); | |
72 | sigaction(SIGINT, &action, NULL); | |
73 | sigsetjmp(jb, 1); | |
74 | ||
75 | while (!quit) | |
76 | { | |
77 | if (!mr_gets("moira: ", cmdbuf, BUFSIZ)) | |
78 | break; | |
79 | execute_line(cmdbuf); | |
80 | } | |
81 | mr_disconnect(); | |
82 | exit(0); | |
1a5c774c | 83 | } |
84 | ||
5eaef520 | 85 | void discard_input(void) |
f281aa29 | 86 | { |
87 | putc('\n', stdout); | |
fcb0b7fa | 88 | |
89 | /* if we're inside a script, we have to clean up file descriptors, | |
90 | so don't jump out yet */ | |
5eaef520 | 91 | if (recursion) |
92 | cancel = 1; | |
93 | else | |
fcb0b7fa | 94 | siglongjmp(jb, 1); |
f281aa29 | 95 | } |
96 | ||
5eaef520 | 97 | char *mr_gets(char *prompt, char *buf, size_t len) |
f281aa29 | 98 | { |
99 | char *in; | |
100 | #ifdef USE_READLINE | |
5eaef520 | 101 | if (interactive) |
102 | { | |
103 | in = readline(prompt); | |
104 | ||
105 | if (!in) | |
106 | return NULL; | |
107 | if (*in) | |
108 | add_history(in); | |
109 | strncpy(buf, in, len - 1); | |
110 | buf[len] = 0; | |
111 | free(in); | |
112 | ||
113 | return buf; | |
f281aa29 | 114 | } |
f281aa29 | 115 | #endif |
116 | printf("%s", prompt); | |
117 | fflush(stdout); | |
5eaef520 | 118 | in = fgets(buf, len, stdin); |
119 | if (!in) | |
120 | return in; | |
121 | if (strchr(buf, '\n')) | |
122 | *(strchr(buf, '\n')) = '\0'; | |
f281aa29 | 123 | return buf; |
124 | } | |
125 | ||
7ac48069 | 126 | void execute_line(char *cmdbuf) |
1a5c774c | 127 | { |
128 | int argc; | |
129 | char *argv[MAXARGS]; | |
130 | ||
5eaef520 | 131 | argc = parse(cmdbuf, argv); |
132 | if (argc == 0) | |
133 | return; | |
134 | if (!strcmp(argv[0], "noop")) | |
1a5c774c | 135 | test_noop(); |
5eaef520 | 136 | else if (!strcmp(argv[0], "connect") || !strcmp(argv[0], "c")) |
1a5c774c | 137 | test_connect(argc, argv); |
5eaef520 | 138 | else if (!strcmp(argv[0], "disconnect") || !strcmp(argv[0], "d")) |
1a5c774c | 139 | test_disconnect(); |
5eaef520 | 140 | else if (!strcmp(argv[0], "host")) |
1a5c774c | 141 | test_host(); |
5eaef520 | 142 | else if (!strcmp(argv[0], "motd")) |
1a5c774c | 143 | test_motd(); |
5eaef520 | 144 | else if (!strcmp(argv[0], "query") || !strcmp(argv[0], "qy")) |
1a5c774c | 145 | test_query(argc, argv); |
5eaef520 | 146 | else if (!strcmp(argv[0], "auth") || !strcmp(argv[0], "a")) |
7ac48069 | 147 | test_auth(); |
5eaef520 | 148 | else if (!strcmp(argv[0], "access")) |
1a5c774c | 149 | test_access(argc, argv); |
5eaef520 | 150 | else if (!strcmp(argv[0], "dcm")) |
1a5c774c | 151 | test_dcm(); |
5eaef520 | 152 | else if (!strcmp(argv[0], "script") || !strcmp(argv[0], "s")) |
1a5c774c | 153 | test_script(argc, argv); |
5eaef520 | 154 | else if (!strcmp(argv[0], "list_requests") || |
155 | !strcmp(argv[0], "lr") || !strcmp(argv[0], "?")) | |
1a5c774c | 156 | test_list_requests(); |
5eaef520 | 157 | else if (!strcmp(argv[0], "quit") || !strcmp(argv[0], "Q")) |
158 | quit = 1; | |
159 | else | |
160 | { | |
161 | fprintf(stderr, "moira: Unknown request \"%s\". " | |
162 | "Type \"?\" for a request list.\n", argv[0]); | |
163 | } | |
1a5c774c | 164 | } |
165 | ||
5eaef520 | 166 | int parse(char *buf, char *argv[MAXARGS]) |
1a5c774c | 167 | { |
168 | char *p; | |
169 | int argc, num; | |
5eaef520 | 170 | |
171 | if (!*buf) | |
172 | return 0; | |
173 | ||
174 | for (p = buf, argc = 0, argv[0] = buf; *p && *p != '\n'; p++) | |
175 | { | |
176 | if (*p == '"') | |
177 | { | |
178 | char *d = p++; | |
179 | /* skip to close-quote, copying back over open-quote */ | |
180 | while (*p != '"') | |
181 | { | |
182 | if (!*p || *p == '\n') | |
183 | { | |
184 | fprintf(stderr, | |
185 | "moira: Unbalanced quotes in command line\n"); | |
186 | return 0; | |
187 | } | |
188 | /* deal with \### or \\ */ | |
189 | if (*p == '\\') | |
190 | { | |
191 | if (*++p != '"' && (*p < '0' || *p > '9') && (*p != '\\')) | |
192 | { | |
193 | fprintf(stderr, "moira: Bad use of \\\n"); | |
194 | return 0; | |
195 | } | |
196 | else if (*p >= '0' && *p <= '9') | |
197 | { | |
198 | num = (*p - '0') * 64 + (*++p - '0') * 8 + (*++p - '0'); | |
199 | *p = num; | |
200 | } | |
201 | } | |
202 | *d++ = *p++; | |
203 | } | |
204 | if (p == d + 1) | |
205 | { | |
206 | *d = '\0'; | |
207 | p++; | |
208 | } | |
209 | else | |
210 | { | |
211 | while (p >= d) | |
212 | *p-- = ' '; | |
213 | } | |
2c031a2a | 214 | } |
5eaef520 | 215 | if (*p == ' ' || *p == '\t') |
216 | { | |
217 | /* skip whitespace */ | |
218 | for (*p++ = '\0'; *p == ' ' || *p == '\t'; p++) | |
219 | ; | |
220 | if (*p && *p != '\n') | |
221 | argv[++argc] = p--; | |
6e6374cb | 222 | } |
1a5c774c | 223 | } |
5eaef520 | 224 | if (*p == '\n') |
225 | *p = '\0'; | |
226 | return argc + 1; | |
6e6374cb | 227 | } |
228 | ||
7ac48069 | 229 | void test_noop(void) |
6e6374cb | 230 | { |
5eaef520 | 231 | int status = mr_noop(); |
232 | if (status) | |
233 | com_err("moira (noop)", status, ""); | |
6e6374cb | 234 | } |
235 | ||
7ac48069 | 236 | void test_connect(int argc, char *argv[]) |
6e6374cb | 237 | { |
5eaef520 | 238 | char *server = ""; |
239 | int status; | |
240 | ||
241 | if (argc > 1) | |
242 | server = argv[1]; | |
243 | status = mr_connect(server); | |
244 | if (status) | |
245 | com_err("moira (connect)", status, ""); | |
6e6374cb | 246 | } |
247 | ||
7ac48069 | 248 | void test_disconnect(void) |
6e6374cb | 249 | { |
5eaef520 | 250 | int status = mr_disconnect(); |
251 | if (status) | |
252 | com_err("moira (disconnect)", status, ""); | |
6e6374cb | 253 | } |
254 | ||
7ac48069 | 255 | void test_host(void) |
66848930 | 256 | { |
5eaef520 | 257 | char host[BUFSIZ]; |
258 | int status; | |
66848930 | 259 | |
5eaef520 | 260 | memset(host, 0, sizeof(host)); |
66848930 | 261 | |
5eaef520 | 262 | if ((status = mr_host(host, sizeof(host) - 1))) |
263 | com_err("moira (host)", status, ""); | |
264 | else | |
265 | printf("You are connected to host %s\n", host); | |
66848930 | 266 | } |
267 | ||
7ac48069 | 268 | void test_auth(void) |
6e6374cb | 269 | { |
5eaef520 | 270 | int status; |
59af7b90 | 271 | |
5eaef520 | 272 | status = mr_auth("mrtest"); |
273 | if (status) | |
274 | com_err("moira (auth)", status, ""); | |
6e6374cb | 275 | } |
276 | ||
7ac48069 | 277 | void test_script(int argc, char *argv[]) |
58b825a4 | 278 | { |
5eaef520 | 279 | FILE *inp; |
280 | char input[BUFSIZ], *cp; | |
281 | int status, oldstdout, oldstderr; | |
282 | ||
283 | if (recursion > 8) | |
284 | { | |
285 | com_err("moira (script)", 0, "too many levels deep in script files\n"); | |
286 | return; | |
58b825a4 | 287 | } |
288 | ||
5eaef520 | 289 | if (argc < 2) |
290 | { | |
291 | com_err("moira (script)", 0, "Usage: script input_file [ output_file ]"); | |
292 | return; | |
58b825a4 | 293 | } |
294 | ||
5eaef520 | 295 | inp = fopen(argv[1], "r"); |
296 | if (!inp) | |
297 | { | |
298 | sprintf(input, "Cannot open input file %s", argv[1]); | |
299 | com_err("moira (script)", 0, input); | |
300 | return; | |
58b825a4 | 301 | } |
302 | ||
5eaef520 | 303 | if (argc == 3) |
304 | { | |
305 | printf("Redirecting output to %s\n", argv[2]); | |
306 | fflush(stdout); | |
307 | oldstdout = dup(1); | |
308 | close(1); | |
309 | status = open(argv[2], O_CREAT|O_WRONLY|O_APPEND, 0664); | |
310 | if (status != 1) | |
311 | { | |
312 | close(status); | |
313 | dup2(oldstdout, 1); | |
314 | argc = 2; | |
315 | sprintf(input, "Unable to redirect output to %s\n", argv[2]); | |
316 | com_err("moira (script)", errno, input); | |
317 | } | |
318 | else | |
319 | { | |
320 | fflush(stderr); | |
321 | oldstderr = dup(2); | |
322 | close(2); | |
323 | dup2(1, 2); | |
58b825a4 | 324 | } |
325 | } | |
326 | ||
5eaef520 | 327 | recursion++; |
328 | ||
329 | while (!cancel) | |
330 | { | |
331 | if (!fgets(input, BUFSIZ, inp)) | |
332 | break; | |
333 | if ((cp = strchr(input, '\n'))) | |
334 | *cp = '\0'; | |
335 | if (input[0] == 0) | |
336 | { | |
337 | printf("\n"); | |
338 | continue; | |
6a592314 | 339 | } |
5eaef520 | 340 | if (input[0] == '%') |
341 | { | |
342 | for (cp = &input[1]; *cp && isspace(*cp); cp++) | |
343 | ; | |
344 | printf("Comment: %s\n", cp); | |
345 | continue; | |
58b825a4 | 346 | } |
5eaef520 | 347 | printf("Executing: %s\n", input); |
348 | execute_line(input); | |
58b825a4 | 349 | } |
350 | ||
5eaef520 | 351 | recursion--; |
352 | if (!recursion) | |
353 | cancel = 0; | |
354 | ||
355 | fclose(inp); | |
356 | if (argc == 3) | |
357 | { | |
358 | fflush(stdout); | |
359 | close(1); | |
360 | dup2(oldstdout, 1); | |
361 | close(oldstdout); | |
362 | fflush(stderr); | |
363 | close(2); | |
364 | dup2(oldstderr, 2); | |
365 | close(oldstderr); | |
58b825a4 | 366 | } |
367 | } | |
368 | ||
7ac48069 | 369 | int print_reply(int argc, char **argv, void *hint) |
6e6374cb | 370 | { |
5eaef520 | 371 | int i; |
372 | for (i = 0; i < argc; i++) | |
373 | { | |
374 | if (i != 0) | |
375 | printf(", "); | |
376 | printf("%s", argv[i]); | |
377 | } | |
378 | printf("\n"); | |
379 | count++; | |
380 | return MR_CONT; | |
6e6374cb | 381 | } |
382 | ||
7ac48069 | 383 | void test_query(int argc, char **argv) |
6e6374cb | 384 | { |
5eaef520 | 385 | int status; |
386 | sigset_t sigs; | |
fcb0b7fa | 387 | |
5eaef520 | 388 | if (argc < 2) |
389 | { | |
390 | com_err("moira (query)", 0, "Usage: query handle [ args ... ]"); | |
391 | return; | |
392 | } | |
59af7b90 | 393 | |
5eaef520 | 394 | count = 0; |
395 | /* Don't allow ^C during the query: it will confuse libmoira's | |
396 | internal state. (Yay static variables) */ | |
397 | sigemptyset(&sigs); | |
398 | sigaddset(&sigs, SIGINT); | |
399 | sigprocmask(SIG_BLOCK, &sigs, NULL); | |
400 | status = mr_query(argv[1], argc - 2, argv + 2, print_reply, NULL); | |
401 | sigprocmask(SIG_UNBLOCK, &sigs, NULL); | |
402 | printf("%d tuple%s\n", count, ((count == 1) ? "" : "s")); | |
403 | if (status) | |
404 | com_err("moira (query)", status, ""); | |
6e6374cb | 405 | } |
406 | ||
7ac48069 | 407 | void test_access(int argc, char **argv) |
6e6374cb | 408 | { |
5eaef520 | 409 | int status; |
410 | if (argc < 2) | |
411 | { | |
412 | com_err("moira (access)", 0, "Usage: access handle [ args ... ]"); | |
413 | return; | |
414 | } | |
415 | status = mr_access(argv[1], argc - 2, argv + 2); | |
416 | if (status) | |
417 | com_err("moira (access)", status, ""); | |
6e6374cb | 418 | } |
fc3ac28e | 419 | |
7ac48069 | 420 | void test_dcm() |
fc3ac28e | 421 | { |
5eaef520 | 422 | int status; |
fc3ac28e | 423 | |
5eaef520 | 424 | if ((status = mr_do_update())) |
425 | com_err("moira (dcm)", status, " while triggering dcm"); | |
fc3ac28e | 426 | } |
093b57b1 | 427 | |
7ac48069 | 428 | void test_motd() |
093b57b1 | 429 | { |
5eaef520 | 430 | int status; |
431 | char *motd; | |
432 | ||
433 | if ((status = mr_motd(&motd))) | |
434 | com_err("moira (motd)", status, " while getting motd"); | |
435 | if (motd) | |
436 | printf("%s\n", motd); | |
437 | else | |
438 | printf("No message of the day.\n"); | |
093b57b1 | 439 | } |
1a5c774c | 440 | |
7ac48069 | 441 | void test_list_requests(void) |
1a5c774c | 442 | { |
5eaef520 | 443 | printf("Available moira requests:\n"); |
444 | printf("\n"); | |
445 | printf("noop\t\t\tAsk Moira to do nothing\n"); | |
446 | printf("connect, c\t\tConnect to Moira server\n"); | |
447 | printf("disconnect, d\t\tDisconnect from server\n"); | |
448 | printf("host\t\t\tIdentify the server host\n"); | |
5eaef520 | 449 | printf("motd, m\t\t\tGet the Message of the Day\n"); |
450 | printf("query, qy\t\tMake a query.\n"); | |
451 | printf("auth, a\t\t\tAuthenticate to Moira.\n"); | |
452 | printf("access\t\t\tCheck access to a Moira query.\n"); | |
453 | printf("dcm\t\t\tTrigger the DCM\n"); | |
454 | printf("script, s\t\tRead commands from a script.\n"); | |
455 | printf("list_requests, lr, ?\tList available commands.\n"); | |
456 | printf("quit, Q\t\t\tLeave the subsystem.\n"); | |
1a5c774c | 457 | } |