Commit | Line | Data |
---|---|---|
e0b077fe | 1 | #ifndef lint |
6ee561e3 | 2 | static char sccsid[] = "@(#)ftp.c 4.12 (Berkeley) %G%"; |
e0b077fe SL |
3 | #endif |
4 | ||
5 | #include <sys/param.h> | |
6 | #include <sys/stat.h> | |
7 | #include <sys/ioctl.h> | |
8 | #include <sys/socket.h> | |
19371098 | 9 | #include <sys/time.h> |
e0b077fe SL |
10 | |
11 | #include <netinet/in.h> | |
62c4a390 | 12 | #include <arpa/ftp.h> |
e0b077fe SL |
13 | |
14 | #include <stdio.h> | |
15 | #include <signal.h> | |
e0b077fe SL |
16 | #include <errno.h> |
17 | #include <netdb.h> | |
18 | ||
e0b077fe SL |
19 | #include "ftp_var.h" |
20 | ||
21 | struct sockaddr_in hisctladdr; | |
22 | struct sockaddr_in data_addr; | |
23 | int data = -1; | |
24 | int connected; | |
25 | struct sockaddr_in myctladdr; | |
26 | ||
27 | FILE *cin, *cout; | |
28 | FILE *dataconn(); | |
29 | ||
30 | struct hostent * | |
31 | hookup(host, port) | |
32 | char *host; | |
33 | int port; | |
34 | { | |
35 | register struct hostent *hp; | |
8c1d51c7 | 36 | int s, len; |
e0b077fe SL |
37 | |
38 | bzero((char *)&hisctladdr, sizeof (hisctladdr)); | |
39 | hp = gethostbyname(host); | |
6e88ca41 | 40 | if (hp == NULL) { |
e0b077fe SL |
41 | static struct hostent def; |
42 | static struct in_addr defaddr; | |
43 | static char namebuf[128]; | |
44 | int inet_addr(); | |
45 | ||
46 | defaddr.s_addr = inet_addr(host); | |
47 | if (defaddr.s_addr == -1) { | |
48 | fprintf(stderr, "%s: Unknown host.\n", host); | |
49 | return (0); | |
50 | } | |
51 | strcpy(namebuf, host); | |
52 | def.h_name = namebuf; | |
53 | hostname = namebuf; | |
54 | def.h_addr = (char *)&defaddr; | |
55 | def.h_length = sizeof (struct in_addr); | |
56 | def.h_addrtype = AF_INET; | |
57 | def.h_aliases = 0; | |
58 | hp = &def; | |
59 | } | |
6e88ca41 SL |
60 | hostname = hp->h_name; |
61 | hisctladdr.sin_family = hp->h_addrtype; | |
e0b077fe SL |
62 | s = socket(hp->h_addrtype, SOCK_STREAM, 0, 0); |
63 | if (s < 0) { | |
64 | perror("ftp: socket"); | |
65 | return (0); | |
66 | } | |
67 | if (bind(s, (char *)&hisctladdr, sizeof (hisctladdr), 0) < 0) { | |
68 | perror("ftp: bind"); | |
69 | goto bad; | |
70 | } | |
71 | bcopy(hp->h_addr, (char *)&hisctladdr.sin_addr, hp->h_length); | |
72 | hisctladdr.sin_port = port; | |
73 | if (connect(s, (char *)&hisctladdr, sizeof (hisctladdr), 0) < 0) { | |
74 | perror("ftp: connect"); | |
75 | goto bad; | |
76 | } | |
8c1d51c7 SL |
77 | len = sizeof (myctladdr); |
78 | if (getsockname(s, (char *)&myctladdr, &len) < 0) { | |
79 | perror("ftp: getsockname"); | |
e0b077fe SL |
80 | goto bad; |
81 | } | |
82 | cin = fdopen(s, "r"); | |
83 | cout = fdopen(s, "w"); | |
d33c618b | 84 | if (cin == NULL || cout == NULL) { |
e0b077fe SL |
85 | fprintf(stderr, "ftp: fdopen failed.\n"); |
86 | if (cin) | |
87 | fclose(cin); | |
88 | if (cout) | |
89 | fclose(cout); | |
90 | goto bad; | |
91 | } | |
92 | if (verbose) | |
93 | printf("Connected to %s.\n", hp->h_name); | |
94 | (void) getreply(0); /* read startup message from server */ | |
95 | return (hp); | |
96 | bad: | |
97 | close(s); | |
98 | return ((struct hostent *)0); | |
99 | } | |
100 | ||
101 | login(hp) | |
102 | struct hostent *hp; | |
103 | { | |
104 | char acct[80]; | |
105 | char *user, *pass; | |
106 | int n; | |
107 | ||
108 | user = pass = 0; | |
109 | ruserpass(hp->h_name, &user, &pass); | |
110 | n = command("USER %s", user); | |
111 | if (n == CONTINUE) | |
112 | n = command("PASS %s", pass); | |
113 | if (n == CONTINUE) { | |
114 | printf("Account: "); (void) fflush(stdout); | |
115 | (void) fgets(acct, sizeof(acct) - 1, stdin); | |
116 | acct[strlen(acct) - 1] = '\0'; | |
117 | n = command("ACCT %s", acct); | |
118 | } | |
119 | if (n != COMPLETE) { | |
120 | fprintf(stderr, "Login failed.\n"); | |
121 | return (0); | |
122 | } | |
123 | return (1); | |
124 | } | |
125 | ||
126 | /*VARARGS 1*/ | |
127 | command(fmt, args) | |
128 | char *fmt; | |
129 | { | |
130 | ||
131 | if (debug) { | |
132 | printf("---> "); | |
133 | _doprnt(fmt, &args, stdout); | |
134 | printf("\n"); | |
135 | (void) fflush(stdout); | |
136 | } | |
d33c618b SL |
137 | if (cout == NULL) { |
138 | perror ("No control connection for command"); | |
139 | return (0); | |
140 | } | |
e0b077fe SL |
141 | _doprnt(fmt, &args, cout); |
142 | fprintf(cout, "\r\n"); | |
143 | (void) fflush(cout); | |
144 | return (getreply(!strcmp(fmt, "QUIT"))); | |
145 | } | |
146 | ||
147 | #include <ctype.h> | |
148 | ||
149 | getreply(expecteof) | |
150 | int expecteof; | |
151 | { | |
d33c618b | 152 | register int c, n; |
e0b077fe SL |
153 | register int code, dig; |
154 | int originalcode = 0, continuation = 0; | |
155 | ||
156 | for (;;) { | |
157 | dig = n = code = 0; | |
158 | while ((c = getc(cin)) != '\n') { | |
159 | dig++; | |
160 | if (c == EOF) { | |
161 | if (expecteof) | |
162 | return (0); | |
163 | lostpeer(); | |
164 | exit(1); | |
165 | } | |
166 | if (verbose && c != '\r' || | |
167 | (n == '5' && dig > 4)) | |
168 | putchar(c); | |
169 | if (dig < 4 && isdigit(c)) | |
170 | code = code * 10 + (c - '0'); | |
171 | if (dig == 4 && c == '-') | |
172 | continuation++; | |
173 | if (n == 0) | |
174 | n = c; | |
175 | } | |
7968a79f | 176 | if (verbose || n == '5') { |
e0b077fe | 177 | putchar(c); |
7968a79f SL |
178 | (void) fflush (stdout); |
179 | } | |
e0b077fe SL |
180 | if (continuation && code != originalcode) { |
181 | if (originalcode == 0) | |
182 | originalcode = code; | |
183 | continue; | |
184 | } | |
d33c618b | 185 | if (expecteof || empty(cin)) |
e0b077fe SL |
186 | return (n - '0'); |
187 | } | |
188 | } | |
189 | ||
190 | empty(f) | |
191 | FILE *f; | |
192 | { | |
5ac6fc46 | 193 | long mask; |
e0b077fe SL |
194 | struct timeval t; |
195 | ||
196 | if (f->_cnt > 0) | |
197 | return (0); | |
198 | mask = (1 << fileno(f)); | |
199 | t.tv_sec = t.tv_usec = 0; | |
200 | (void) select(20, &mask, 0, 0, &t); | |
201 | return (mask == 0); | |
202 | } | |
203 | ||
204 | jmp_buf sendabort; | |
205 | ||
206 | abortsend() | |
207 | { | |
208 | ||
209 | longjmp(sendabort, 1); | |
210 | } | |
211 | ||
212 | sendrequest(cmd, local, remote) | |
213 | char *cmd, *local, *remote; | |
214 | { | |
215 | FILE *fin, *dout, *popen(); | |
216 | int (*closefunc)(), pclose(), fclose(), (*oldintr)(); | |
d33c618b | 217 | char buf[BUFSIZ]; |
5ac6fc46 | 218 | long bytes = 0, hashbytes = sizeof (buf); |
7968a79f | 219 | register int c, d; |
e0b077fe SL |
220 | struct stat st; |
221 | struct timeval start, stop; | |
222 | ||
223 | closefunc = NULL; | |
224 | if (setjmp(sendabort)) | |
225 | goto bad; | |
226 | oldintr = signal(SIGINT, abortsend); | |
227 | if (strcmp(local, "-") == 0) | |
228 | fin = stdin; | |
229 | else if (*local == '|') { | |
230 | fin = popen(local + 1, "r"); | |
231 | if (fin == NULL) { | |
232 | perror(local + 1); | |
233 | goto bad; | |
234 | } | |
235 | closefunc = pclose; | |
236 | } else { | |
237 | fin = fopen(local, "r"); | |
238 | if (fin == NULL) { | |
239 | perror(local); | |
240 | goto bad; | |
241 | } | |
242 | closefunc = fclose; | |
243 | if (fstat(fileno(fin), &st) < 0 || | |
244 | (st.st_mode&S_IFMT) != S_IFREG) { | |
245 | fprintf(stderr, "%s: not a plain file.", local); | |
246 | goto bad; | |
247 | } | |
248 | } | |
249 | if (initconn()) | |
250 | goto bad; | |
251 | if (remote) { | |
252 | if (command("%s %s", cmd, remote) != PRELIM) | |
253 | goto bad; | |
254 | } else | |
255 | if (command("%s", cmd) != PRELIM) | |
256 | goto bad; | |
257 | dout = dataconn("w"); | |
258 | if (dout == NULL) | |
259 | goto bad; | |
260 | gettimeofday(&start, (struct timezone *)0); | |
d33c618b SL |
261 | switch (type) { |
262 | ||
263 | case TYPE_I: | |
264 | case TYPE_L: | |
7968a79f | 265 | errno = d = 0; |
d33c618b | 266 | while ((c = read(fileno (fin), buf, sizeof (buf))) > 0) { |
7968a79f | 267 | if ((d = write(fileno (dout), buf, c)) < 0) |
d33c618b SL |
268 | break; |
269 | bytes += c; | |
5ac6fc46 SL |
270 | if (hash) { |
271 | putchar('#'); | |
272 | fflush(stdout); | |
273 | } | |
274 | } | |
614e24b6 | 275 | if (hash && bytes > 0) { |
5ac6fc46 SL |
276 | putchar('\n'); |
277 | fflush(stdout); | |
d33c618b SL |
278 | } |
279 | if (c < 0) | |
280 | perror(local); | |
7968a79f | 281 | if (d < 0) |
d33c618b SL |
282 | perror("netout"); |
283 | break; | |
284 | ||
285 | case TYPE_A: | |
286 | while ((c = getc(fin)) != EOF) { | |
287 | if (c == '\n') { | |
5ac6fc46 SL |
288 | while (hash && (bytes >= hashbytes)) { |
289 | putchar('#'); | |
290 | fflush(stdout); | |
291 | hashbytes += sizeof (buf); | |
292 | } | |
d33c618b SL |
293 | if (ferror(dout)) |
294 | break; | |
295 | putc('\r', dout); | |
296 | bytes++; | |
297 | } | |
298 | putc(c, dout); | |
299 | bytes++; | |
300 | if (c == '\r') { | |
301 | putc('\0', dout); | |
302 | bytes++; | |
303 | } | |
304 | } | |
5ac6fc46 | 305 | if (hash) { |
614e24b6 SL |
306 | if (bytes < hashbytes) |
307 | putchar('#'); | |
5ac6fc46 SL |
308 | putchar('\n'); |
309 | fflush(stdout); | |
310 | } | |
d33c618b SL |
311 | if (ferror(fin)) |
312 | perror(local); | |
7968a79f | 313 | if (ferror(dout)) |
d33c618b SL |
314 | perror("netout"); |
315 | break; | |
e0b077fe SL |
316 | } |
317 | gettimeofday(&stop, (struct timezone *)0); | |
318 | if (closefunc != NULL) | |
319 | (*closefunc)(fin); | |
320 | (void) fclose(dout); | |
e0b077fe SL |
321 | (void) getreply(0); |
322 | done: | |
323 | signal(SIGINT, oldintr); | |
324 | if (bytes > 0 && verbose) | |
325 | ptransfer("sent", bytes, &start, &stop); | |
326 | return; | |
327 | bad: | |
328 | if (data >= 0) | |
329 | (void) close(data), data = -1; | |
330 | if (closefunc != NULL && fin != NULL) | |
331 | (*closefunc)(fin); | |
332 | goto done; | |
333 | } | |
334 | ||
335 | jmp_buf recvabort; | |
336 | ||
337 | abortrecv() | |
338 | { | |
339 | ||
340 | longjmp(recvabort, 1); | |
341 | } | |
342 | ||
5ac6fc46 SL |
343 | recvrequest(cmd, local, remote, mode) |
344 | char *cmd, *local, *remote, *mode; | |
e0b077fe SL |
345 | { |
346 | FILE *fout, *din, *popen(); | |
7968a79f | 347 | int (*closefunc)(), pclose(), fclose(), (*oldintr)(); |
5ac6fc46 SL |
348 | char buf[BUFSIZ]; |
349 | long bytes = 0, hashbytes = sizeof (buf); | |
7968a79f | 350 | register int c, d; |
e0b077fe SL |
351 | struct timeval start, stop; |
352 | ||
353 | closefunc = NULL; | |
354 | if (setjmp(recvabort)) | |
355 | goto bad; | |
356 | oldintr = signal(SIGINT, abortrecv); | |
357 | if (strcmp(local, "-") && *local != '|') | |
358 | if (access(local, 2) < 0) { | |
359 | char *dir = rindex(local, '/'); | |
360 | ||
361 | if (dir != NULL) | |
362 | *dir = 0; | |
363 | if (access(dir ? dir : ".", 2) < 0) { | |
364 | perror(local); | |
365 | goto bad; | |
366 | } | |
367 | if (dir != NULL) | |
368 | *dir = '/'; | |
369 | } | |
370 | if (initconn()) | |
371 | goto bad; | |
372 | if (remote) { | |
373 | if (command("%s %s", cmd, remote) != PRELIM) | |
374 | goto bad; | |
375 | } else | |
376 | if (command("%s", cmd) != PRELIM) | |
377 | goto bad; | |
378 | if (strcmp(local, "-") == 0) | |
379 | fout = stdout; | |
380 | else if (*local == '|') { | |
381 | fout = popen(local + 1, "w"); | |
382 | closefunc = pclose; | |
383 | } else { | |
5ac6fc46 | 384 | fout = fopen(local, mode); |
e0b077fe SL |
385 | closefunc = fclose; |
386 | } | |
387 | if (fout == NULL) { | |
388 | perror(local + 1); | |
389 | goto bad; | |
390 | } | |
391 | din = dataconn("r"); | |
392 | if (din == NULL) | |
393 | goto bad; | |
394 | gettimeofday(&start, (struct timezone *)0); | |
d33c618b SL |
395 | switch (type) { |
396 | ||
397 | case TYPE_I: | |
398 | case TYPE_L: | |
7968a79f | 399 | errno = d = 0; |
d33c618b | 400 | while ((c = read(fileno(din), buf, sizeof (buf))) > 0) { |
7968a79f | 401 | if ((d = write(fileno(fout), buf, c)) < 0) |
d33c618b SL |
402 | break; |
403 | bytes += c; | |
5ac6fc46 SL |
404 | if (hash) { |
405 | putchar('#'); | |
406 | fflush(stdout); | |
407 | } | |
408 | } | |
614e24b6 | 409 | if (hash && bytes > 0) { |
5ac6fc46 SL |
410 | putchar('\n'); |
411 | fflush(stdout); | |
d33c618b SL |
412 | } |
413 | if (c < 0) | |
414 | perror("netin"); | |
7968a79f | 415 | if (d < 0) |
e0b077fe | 416 | perror(local); |
d33c618b SL |
417 | break; |
418 | ||
419 | case TYPE_A: | |
420 | while ((c = getc(din)) != EOF) { | |
421 | if (c == '\r') { | |
5ac6fc46 SL |
422 | while (hash && (bytes >= hashbytes)) { |
423 | putchar('#'); | |
424 | fflush(stdout); | |
425 | hashbytes += sizeof (buf); | |
426 | } | |
e0b077fe | 427 | bytes++; |
d33c618b SL |
428 | if ((c = getc(din)) != '\n') { |
429 | if (ferror (fout)) | |
430 | break; | |
431 | putc ('\r', fout); | |
432 | } | |
433 | if (c == '\0') { | |
434 | bytes++; | |
435 | continue; | |
436 | } | |
437 | } | |
438 | putc (c, fout); | |
439 | bytes++; | |
e0b077fe | 440 | } |
5ac6fc46 | 441 | if (hash) { |
614e24b6 SL |
442 | if (bytes < hashbytes) |
443 | putchar('#'); | |
5ac6fc46 SL |
444 | putchar('\n'); |
445 | fflush(stdout); | |
446 | } | |
d33c618b SL |
447 | if (ferror (din)) |
448 | perror ("netin"); | |
449 | if (ferror (fout)) | |
450 | perror (local); | |
451 | break; | |
e0b077fe SL |
452 | } |
453 | gettimeofday(&stop, (struct timezone *)0); | |
454 | (void) fclose(din); | |
455 | if (closefunc != NULL) | |
456 | (*closefunc)(fout); | |
457 | (void) getreply(0); | |
458 | done: | |
459 | signal(SIGINT, oldintr); | |
460 | if (bytes > 0 && verbose) | |
461 | ptransfer("received", bytes, &start, &stop); | |
462 | return; | |
463 | bad: | |
464 | if (data >= 0) | |
465 | (void) close(data), data = -1; | |
466 | if (closefunc != NULL && fout != NULL) | |
467 | (*closefunc)(fout); | |
468 | goto done; | |
469 | } | |
470 | ||
471 | /* | |
472 | * Need to start a listen on the data channel | |
473 | * before we send the command, otherwise the | |
474 | * server's connect may fail. | |
475 | */ | |
5ac6fc46 SL |
476 | static int sendport = -1; |
477 | ||
e0b077fe SL |
478 | initconn() |
479 | { | |
480 | register char *p, *a; | |
8c1d51c7 | 481 | int result, len; |
e0b077fe | 482 | |
5ac6fc46 | 483 | noport: |
e0b077fe | 484 | data_addr = myctladdr; |
5ac6fc46 SL |
485 | if (sendport) |
486 | data_addr.sin_port = 0; /* let system pick one */ | |
487 | if (data != -1) | |
488 | (void) close (data); | |
e0b077fe SL |
489 | data = socket(AF_INET, SOCK_STREAM, 0, 0); |
490 | if (data < 0) { | |
491 | perror("ftp: socket"); | |
492 | return (1); | |
493 | } | |
62c4a390 SL |
494 | if (!sendport) |
495 | if (setsockopt(data, SOL_SOCKET, SO_REUSEADDR, 0, 0) < 0) { | |
496 | perror("ftp: setsockopt (resuse address)"); | |
497 | goto bad; | |
498 | } | |
e0b077fe SL |
499 | if (bind(data, (char *)&data_addr, sizeof (data_addr), 0) < 0) { |
500 | perror("ftp: bind"); | |
501 | goto bad; | |
502 | } | |
e0b077fe SL |
503 | if (options & SO_DEBUG && |
504 | setsockopt(data, SOL_SOCKET, SO_DEBUG, 0, 0) < 0) | |
505 | perror("ftp: setsockopt (ignored)"); | |
8c1d51c7 SL |
506 | len = sizeof (data_addr); |
507 | if (getsockname(data, (char *)&data_addr, &len) < 0) { | |
508 | perror("ftp: getsockname"); | |
e0b077fe SL |
509 | goto bad; |
510 | } | |
511 | if (listen(data, 1) < 0) { | |
512 | perror("ftp: listen"); | |
513 | goto bad; | |
514 | } | |
5ac6fc46 SL |
515 | if (sendport) { |
516 | a = (char *)&data_addr.sin_addr; | |
517 | p = (char *)&data_addr.sin_port; | |
e0b077fe | 518 | #define UC(b) (((int)b)&0xff) |
5ac6fc46 SL |
519 | result = |
520 | command("PORT %d,%d,%d,%d,%d,%d", | |
521 | UC(a[0]), UC(a[1]), UC(a[2]), UC(a[3]), | |
522 | UC(p[0]), UC(p[1])); | |
523 | if (result == ERROR && sendport == -1) { | |
524 | sendport = 0; | |
525 | goto noport; | |
526 | } | |
527 | return (result != COMPLETE); | |
528 | } | |
529 | return (0); | |
e0b077fe SL |
530 | bad: |
531 | (void) close(data), data = -1; | |
532 | return (1); | |
533 | } | |
534 | ||
535 | FILE * | |
536 | dataconn(mode) | |
537 | char *mode; | |
538 | { | |
539 | struct sockaddr_in from; | |
540 | int s, fromlen = sizeof (from); | |
541 | ||
542 | s = accept(data, &from, &fromlen, 0); | |
543 | if (s < 0) { | |
544 | perror("ftp: accept"); | |
545 | (void) close(data), data = -1; | |
546 | return (NULL); | |
547 | } | |
548 | (void) close(data); | |
549 | data = s; | |
550 | return (fdopen(data, mode)); | |
551 | } | |
552 | ||
553 | ptransfer(direction, bytes, t0, t1) | |
554 | char *direction; | |
5ac6fc46 | 555 | long bytes; |
e0b077fe SL |
556 | struct timeval *t0, *t1; |
557 | { | |
558 | struct timeval td; | |
6ee561e3 | 559 | float s, bs; |
e0b077fe SL |
560 | |
561 | tvsub(&td, t1, t0); | |
6ee561e3 | 562 | s = td.tv_sec + (td.tv_usec / 1000000.); |
e0b077fe | 563 | #define nz(x) ((x) == 0 ? 1 : (x)) |
6ee561e3 CL |
564 | bs = bytes / nz(s); |
565 | printf("%ld bytes %s in %.2g seconds (%.2g Kbytes/s)\n", | |
566 | bytes, direction, s, bs / 1024.); | |
e0b077fe SL |
567 | } |
568 | ||
569 | tvadd(tsum, t0) | |
570 | struct timeval *tsum, *t0; | |
571 | { | |
572 | ||
573 | tsum->tv_sec += t0->tv_sec; | |
574 | tsum->tv_usec += t0->tv_usec; | |
575 | if (tsum->tv_usec > 1000000) | |
576 | tsum->tv_sec++, tsum->tv_usec -= 1000000; | |
577 | } | |
578 | ||
579 | tvsub(tdiff, t1, t0) | |
580 | struct timeval *tdiff, *t1, *t0; | |
581 | { | |
582 | ||
583 | tdiff->tv_sec = t1->tv_sec - t0->tv_sec; | |
584 | tdiff->tv_usec = t1->tv_usec - t0->tv_usec; | |
585 | if (tdiff->tv_usec < 0) | |
586 | tdiff->tv_sec--, tdiff->tv_usec += 1000000; | |
587 | } |