Commit | Line | Data |
---|---|---|
edf71f48 | 1 | /* |
522da3e4 | 2 | * Copyright (c) 1985, 1989, 1993, 1994 |
2c4b3588 | 3 | * The Regents of the University of California. All rights reserved. |
11c5f0a3 | 4 | * |
1343342a | 5 | * %sccs.include.redist.c% |
edf71f48 DF |
6 | */ |
7 | ||
8 | #ifndef lint | |
2c4b3588 | 9 | static char copyright[] = |
522da3e4 | 10 | "@(#) Copyright (c) 1985, 1989, 1993, 1994\n\ |
2c4b3588 | 11 | The Regents of the University of California. All rights reserved.\n"; |
11c5f0a3 | 12 | #endif /* not lint */ |
edf71f48 | 13 | |
ba5bf9f5 | 14 | #ifndef lint |
3c8585cd | 15 | static char sccsid[] = "@(#)main.c 8.4 (Berkeley) %G%"; |
11c5f0a3 | 16 | #endif /* not lint */ |
ba5bf9f5 SL |
17 | |
18 | /* | |
19 | * FTP User Program -- Command Interface. | |
20 | */ | |
26128054 | 21 | /*#include <sys/ioctl.h>*/ |
04480325 | 22 | #include <sys/types.h> |
26128054 | 23 | #include <sys/socket.h> |
ba5bf9f5 | 24 | |
62c4a390 SL |
25 | #include <arpa/ftp.h> |
26 | ||
ba5bf9f5 | 27 | #include <ctype.h> |
26128054 | 28 | #include <err.h> |
ba5bf9f5 | 29 | #include <netdb.h> |
3b645f65 | 30 | #include <pwd.h> |
26128054 JSP |
31 | #include <signal.h> |
32 | #include <stdio.h> | |
33 | #include <stdlib.h> | |
34 | #include <unistd.h> | |
ba5bf9f5 | 35 | |
26128054 | 36 | #include "ftp_var.h" |
ba5bf9f5 | 37 | |
26128054 | 38 | int |
ba5bf9f5 | 39 | main(argc, argv) |
26128054 | 40 | int argc; |
ba5bf9f5 SL |
41 | char *argv[]; |
42 | { | |
26128054 | 43 | int ch, top; |
14433a73 | 44 | struct passwd *pw = NULL; |
26128054 | 45 | char *cp, homedir[MAXPATHLEN]; |
ba5bf9f5 SL |
46 | |
47 | sp = getservbyname("ftp", "tcp"); | |
26128054 JSP |
48 | if (sp == 0) |
49 | errx(1, "ftp/tcp: unknown service"); | |
a16b8edf | 50 | doglob = 1; |
5ac6fc46 | 51 | interactive = 1; |
a16b8edf | 52 | autologin = 1; |
26128054 JSP |
53 | |
54 | while ((ch = getopt(argc, argv, "dgintv")) != EOF) { | |
55 | switch (*cp) { | |
56 | case 'd': | |
57 | options |= SO_DEBUG; | |
58 | debug++; | |
59 | break; | |
ba5bf9f5 | 60 | |
26128054 JSP |
61 | case 'g': |
62 | doglob = 0; | |
63 | break; | |
ba5bf9f5 | 64 | |
26128054 JSP |
65 | case 'i': |
66 | interactive = 0; | |
67 | break; | |
ba5bf9f5 | 68 | |
26128054 JSP |
69 | case 'n': |
70 | autologin = 0; | |
71 | break; | |
ba5bf9f5 | 72 | |
26128054 JSP |
73 | case 't': |
74 | trace++; | |
75 | break; | |
ba5bf9f5 | 76 | |
26128054 JSP |
77 | case 'v': |
78 | verbose++; | |
79 | break; | |
a16b8edf | 80 | |
26128054 JSP |
81 | default: |
82 | (void)fprintf(stderr, | |
83 | "usage: ftp [-dgintv] [host [port]]\n"); | |
84 | exit(1); | |
85 | } | |
ba5bf9f5 | 86 | } |
26128054 JSP |
87 | argc -= optind; |
88 | argv += optind; | |
89 | ||
ba5bf9f5 | 90 | fromatty = isatty(fileno(stdin)); |
ba5bf9f5 SL |
91 | if (fromatty) |
92 | verbose++; | |
029aa654 | 93 | cpend = 0; /* no pending replies */ |
9069f68e | 94 | proxy = 0; /* proxy not active */ |
029aa654 RA |
95 | crflag = 1; /* strip c.r. on ascii gets */ |
96 | sendport = -1; /* not using ports */ | |
3b645f65 SL |
97 | /* |
98 | * Set up the home directory in case we're globbing. | |
99 | */ | |
14433a73 | 100 | cp = getlogin(); |
9069f68e | 101 | if (cp != NULL) { |
14433a73 | 102 | pw = getpwnam(cp); |
9069f68e | 103 | } |
3b645f65 SL |
104 | if (pw == NULL) |
105 | pw = getpwuid(getuid()); | |
106 | if (pw != NULL) { | |
107 | home = homedir; | |
04480325 | 108 | (void) strcpy(home, pw->pw_dir); |
3b645f65 | 109 | } |
ba5bf9f5 | 110 | if (argc > 0) { |
3c8585cd | 111 | char *xargv[5]; |
26128054 JSP |
112 | extern char *__progname; |
113 | ||
ba5bf9f5 SL |
114 | if (setjmp(toplevel)) |
115 | exit(0); | |
04480325 GM |
116 | (void) signal(SIGINT, intr); |
117 | (void) signal(SIGPIPE, lostpeer); | |
26128054 JSP |
118 | xargv[0] = __progname; |
119 | xargv[1] = argv[0]; | |
120 | xargv[2] = argv[1]; | |
121 | xargv[3] = argv[2]; | |
3c8585cd | 122 | xargv[4] = NULL; |
26128054 | 123 | setpeer(argc+1, xargv); |
ba5bf9f5 SL |
124 | } |
125 | top = setjmp(toplevel) == 0; | |
126 | if (top) { | |
04480325 GM |
127 | (void) signal(SIGINT, intr); |
128 | (void) signal(SIGPIPE, lostpeer); | |
ba5bf9f5 SL |
129 | } |
130 | for (;;) { | |
131 | cmdscanner(top); | |
132 | top = 1; | |
133 | } | |
134 | } | |
135 | ||
b61c5edc | 136 | void |
ba5bf9f5 SL |
137 | intr() |
138 | { | |
139 | ||
140 | longjmp(toplevel, 1); | |
141 | } | |
142 | ||
b61c5edc | 143 | void |
ba5bf9f5 SL |
144 | lostpeer() |
145 | { | |
ba5bf9f5 SL |
146 | |
147 | if (connected) { | |
148 | if (cout != NULL) { | |
04480325 GM |
149 | (void) shutdown(fileno(cout), 1+1); |
150 | (void) fclose(cout); | |
ba5bf9f5 SL |
151 | cout = NULL; |
152 | } | |
153 | if (data >= 0) { | |
04480325 | 154 | (void) shutdown(data, 1+1); |
ba5bf9f5 SL |
155 | (void) close(data); |
156 | data = -1; | |
157 | } | |
158 | connected = 0; | |
159 | } | |
9069f68e GM |
160 | pswitch(1); |
161 | if (connected) { | |
162 | if (cout != NULL) { | |
04480325 GM |
163 | (void) shutdown(fileno(cout), 1+1); |
164 | (void) fclose(cout); | |
9069f68e GM |
165 | cout = NULL; |
166 | } | |
167 | connected = 0; | |
168 | } | |
169 | proxflag = 0; | |
170 | pswitch(0); | |
ba5bf9f5 SL |
171 | } |
172 | ||
26128054 JSP |
173 | /* |
174 | char * | |
ba5bf9f5 SL |
175 | tail(filename) |
176 | char *filename; | |
177 | { | |
26128054 | 178 | char *s; |
ba5bf9f5 SL |
179 | |
180 | while (*filename) { | |
26128054 | 181 | s = strrchr(filename, '/'); |
ba5bf9f5 SL |
182 | if (s == NULL) |
183 | break; | |
184 | if (s[1]) | |
185 | return (s + 1); | |
186 | *s = '\0'; | |
187 | } | |
188 | return (filename); | |
189 | } | |
04480325 | 190 | */ |
26128054 | 191 | |
ba5bf9f5 SL |
192 | /* |
193 | * Command parser. | |
194 | */ | |
26128054 | 195 | void |
ba5bf9f5 SL |
196 | cmdscanner(top) |
197 | int top; | |
198 | { | |
26128054 JSP |
199 | struct cmd *c; |
200 | int l; | |
ba5bf9f5 SL |
201 | |
202 | if (!top) | |
04480325 | 203 | (void) putchar('\n'); |
ba5bf9f5 SL |
204 | for (;;) { |
205 | if (fromatty) { | |
206 | printf("ftp> "); | |
04480325 | 207 | (void) fflush(stdout); |
ba5bf9f5 | 208 | } |
67ff27c7 | 209 | if (fgets(line, sizeof line, stdin) == NULL) |
26128054 | 210 | quit(0, 0); |
67ff27c7 KB |
211 | l = strlen(line); |
212 | if (l == 0) | |
ba5bf9f5 | 213 | break; |
67ff27c7 KB |
214 | if (line[--l] == '\n') { |
215 | if (l == 0) | |
216 | break; | |
217 | line[l] = '\0'; | |
218 | } else if (l == sizeof(line) - 2) { | |
219 | printf("sorry, input line too long\n"); | |
220 | while ((l = getchar()) != '\n' && l != EOF) | |
221 | /* void */; | |
ba5bf9f5 | 222 | break; |
67ff27c7 | 223 | } /* else it was a line without a newline */ |
ba5bf9f5 | 224 | makeargv(); |
9069f68e | 225 | if (margc == 0) { |
14433a73 | 226 | continue; |
9069f68e | 227 | } |
ba5bf9f5 SL |
228 | c = getcmd(margv[0]); |
229 | if (c == (struct cmd *)-1) { | |
230 | printf("?Ambiguous command\n"); | |
231 | continue; | |
232 | } | |
233 | if (c == 0) { | |
234 | printf("?Invalid command\n"); | |
235 | continue; | |
236 | } | |
5ac6fc46 | 237 | if (c->c_conn && !connected) { |
67ff27c7 | 238 | printf("Not connected.\n"); |
5ac6fc46 SL |
239 | continue; |
240 | } | |
ba5bf9f5 SL |
241 | (*c->c_handler)(margc, margv); |
242 | if (bell && c->c_bell) | |
ff00793c | 243 | (void) putchar('\007'); |
ba5bf9f5 SL |
244 | if (c->c_handler != help) |
245 | break; | |
246 | } | |
04480325 GM |
247 | (void) signal(SIGINT, intr); |
248 | (void) signal(SIGPIPE, lostpeer); | |
ba5bf9f5 SL |
249 | } |
250 | ||
251 | struct cmd * | |
252 | getcmd(name) | |
26128054 | 253 | char *name; |
ba5bf9f5 | 254 | { |
26128054 JSP |
255 | char *p, *q; |
256 | struct cmd *c, *found; | |
257 | int nmatches, longest; | |
ba5bf9f5 SL |
258 | |
259 | longest = 0; | |
260 | nmatches = 0; | |
261 | found = 0; | |
262 | for (c = cmdtab; p = c->c_name; c++) { | |
263 | for (q = name; *q == *p++; q++) | |
264 | if (*q == 0) /* exact match? */ | |
265 | return (c); | |
266 | if (!*q) { /* the name was a prefix */ | |
267 | if (q - name > longest) { | |
268 | longest = q - name; | |
269 | nmatches = 1; | |
270 | found = c; | |
271 | } else if (q - name == longest) | |
272 | nmatches++; | |
273 | } | |
274 | } | |
275 | if (nmatches > 1) | |
276 | return ((struct cmd *)-1); | |
277 | return (found); | |
278 | } | |
279 | ||
280 | /* | |
281 | * Slice a string up into argc/argv. | |
282 | */ | |
9069f68e GM |
283 | |
284 | int slrflag; | |
285 | ||
26128054 | 286 | void |
ba5bf9f5 SL |
287 | makeargv() |
288 | { | |
289 | char **argp; | |
ba5bf9f5 SL |
290 | |
291 | margc = 0; | |
292 | argp = margv; | |
293 | stringbase = line; /* scan from first of buffer */ | |
294 | argbase = argbuf; /* store from first of buffer */ | |
9069f68e GM |
295 | slrflag = 0; |
296 | while (*argp++ = slurpstring()) | |
ba5bf9f5 SL |
297 | margc++; |
298 | } | |
299 | ||
300 | /* | |
301 | * Parse string into argbuf; | |
302 | * implemented with FSM to | |
303 | * handle quoting and strings | |
304 | */ | |
305 | char * | |
306 | slurpstring() | |
307 | { | |
308 | int got_one = 0; | |
26128054 JSP |
309 | char *sb = stringbase; |
310 | char *ap = argbase; | |
ba5bf9f5 SL |
311 | char *tmp = argbase; /* will return this if token found */ |
312 | ||
9069f68e GM |
313 | if (*sb == '!' || *sb == '$') { /* recognize ! as a token for shell */ |
314 | switch (slrflag) { /* and $ as token for macro invoke */ | |
315 | case 0: | |
316 | slrflag++; | |
317 | stringbase++; | |
318 | return ((*sb == '!') ? "!" : "$"); | |
ff00793c | 319 | /* NOTREACHED */ |
9069f68e GM |
320 | case 1: |
321 | slrflag++; | |
322 | altarg = stringbase; | |
323 | break; | |
324 | default: | |
325 | break; | |
326 | } | |
327 | } | |
328 | ||
ba5bf9f5 SL |
329 | S0: |
330 | switch (*sb) { | |
331 | ||
332 | case '\0': | |
333 | goto OUT; | |
334 | ||
335 | case ' ': | |
336 | case '\t': | |
337 | sb++; goto S0; | |
338 | ||
339 | default: | |
9069f68e GM |
340 | switch (slrflag) { |
341 | case 0: | |
342 | slrflag++; | |
343 | break; | |
344 | case 1: | |
345 | slrflag++; | |
346 | altarg = sb; | |
347 | break; | |
348 | default: | |
349 | break; | |
350 | } | |
ba5bf9f5 SL |
351 | goto S1; |
352 | } | |
353 | ||
354 | S1: | |
355 | switch (*sb) { | |
356 | ||
357 | case ' ': | |
358 | case '\t': | |
359 | case '\0': | |
360 | goto OUT; /* end of token */ | |
361 | ||
362 | case '\\': | |
363 | sb++; goto S2; /* slurp next character */ | |
364 | ||
365 | case '"': | |
366 | sb++; goto S3; /* slurp quoted string */ | |
367 | ||
368 | default: | |
369 | *ap++ = *sb++; /* add character to token */ | |
370 | got_one = 1; | |
371 | goto S1; | |
372 | } | |
373 | ||
374 | S2: | |
375 | switch (*sb) { | |
376 | ||
377 | case '\0': | |
378 | goto OUT; | |
379 | ||
380 | default: | |
381 | *ap++ = *sb++; | |
382 | got_one = 1; | |
383 | goto S1; | |
384 | } | |
385 | ||
386 | S3: | |
387 | switch (*sb) { | |
388 | ||
389 | case '\0': | |
390 | goto OUT; | |
391 | ||
392 | case '"': | |
393 | sb++; goto S1; | |
394 | ||
395 | default: | |
396 | *ap++ = *sb++; | |
397 | got_one = 1; | |
398 | goto S3; | |
399 | } | |
400 | ||
401 | OUT: | |
402 | if (got_one) | |
403 | *ap++ = '\0'; | |
404 | argbase = ap; /* update storage pointer */ | |
405 | stringbase = sb; /* update scan pointer */ | |
9069f68e | 406 | if (got_one) { |
26128054 | 407 | return (tmp); |
9069f68e GM |
408 | } |
409 | switch (slrflag) { | |
410 | case 0: | |
411 | slrflag++; | |
412 | break; | |
413 | case 1: | |
414 | slrflag++; | |
415 | altarg = (char *) 0; | |
416 | break; | |
417 | default: | |
418 | break; | |
419 | } | |
26128054 | 420 | return ((char *)0); |
ba5bf9f5 SL |
421 | } |
422 | ||
26128054 | 423 | #define HELPINDENT ((int) sizeof ("directory")) |
ba5bf9f5 SL |
424 | |
425 | /* | |
426 | * Help command. | |
427 | * Call each command handler with argc == 0 and argv[0] == name. | |
428 | */ | |
26128054 | 429 | void |
ba5bf9f5 SL |
430 | help(argc, argv) |
431 | int argc; | |
432 | char *argv[]; | |
433 | { | |
26128054 | 434 | struct cmd *c; |
ba5bf9f5 SL |
435 | |
436 | if (argc == 1) { | |
26128054 | 437 | int i, j, w, k; |
ba5bf9f5 | 438 | int columns, width = 0, lines; |
ba5bf9f5 SL |
439 | |
440 | printf("Commands may be abbreviated. Commands are:\n\n"); | |
441 | for (c = cmdtab; c < &cmdtab[NCMDS]; c++) { | |
442 | int len = strlen(c->c_name); | |
443 | ||
444 | if (len > width) | |
445 | width = len; | |
446 | } | |
447 | width = (width + 8) &~ 7; | |
448 | columns = 80 / width; | |
449 | if (columns == 0) | |
450 | columns = 1; | |
451 | lines = (NCMDS + columns - 1) / columns; | |
452 | for (i = 0; i < lines; i++) { | |
453 | for (j = 0; j < columns; j++) { | |
454 | c = cmdtab + j * lines + i; | |
9069f68e | 455 | if (c->c_name && (!proxy || c->c_proxy)) { |
14433a73 | 456 | printf("%s", c->c_name); |
9069f68e GM |
457 | } |
458 | else if (c->c_name) { | |
459 | for (k=0; k < strlen(c->c_name); k++) { | |
04480325 | 460 | (void) putchar(' '); |
9069f68e GM |
461 | } |
462 | } | |
ba5bf9f5 SL |
463 | if (c + lines >= &cmdtab[NCMDS]) { |
464 | printf("\n"); | |
465 | break; | |
466 | } | |
467 | w = strlen(c->c_name); | |
468 | while (w < width) { | |
469 | w = (w + 8) &~ 7; | |
04480325 | 470 | (void) putchar('\t'); |
ba5bf9f5 SL |
471 | } |
472 | } | |
473 | } | |
474 | return; | |
475 | } | |
476 | while (--argc > 0) { | |
26128054 | 477 | char *arg; |
ba5bf9f5 SL |
478 | arg = *++argv; |
479 | c = getcmd(arg); | |
480 | if (c == (struct cmd *)-1) | |
481 | printf("?Ambiguous help command %s\n", arg); | |
482 | else if (c == (struct cmd *)0) | |
483 | printf("?Invalid help command %s\n", arg); | |
484 | else | |
485 | printf("%-*s\t%s\n", HELPINDENT, | |
486 | c->c_name, c->c_help); | |
487 | } | |
488 | } |