Annotation of src/usr.bin/ftp/main.c, Revision 1.101
1.101 ! jsing 1: /* $OpenBSD: main.c,v 1.100 2015/02/17 22:39:32 tedu Exp $ */
1.36 millert 2: /* $NetBSD: main.c,v 1.24 1997/08/18 10:20:26 lukem Exp $ */
1.5 deraadt 3:
1.1 deraadt 4: /*
1.44 itojun 5: * Copyright (C) 1997 and 1998 WIDE Project.
6: * All rights reserved.
7: *
8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * 2. Redistributions in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in the
15: * documentation and/or other materials provided with the distribution.
16: * 3. Neither the name of the project nor the names of its contributors
17: * may be used to endorse or promote products derived from this software
18: * without specific prior written permission.
19: *
20: * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
21: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23: * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
24: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30: * SUCH DAMAGE.
31: */
32:
33: /*
1.1 deraadt 34: * Copyright (c) 1985, 1989, 1993, 1994
35: * The Regents of the University of California. All rights reserved.
36: *
37: * Redistribution and use in source and binary forms, with or without
38: * modification, are permitted provided that the following conditions
39: * are met:
40: * 1. Redistributions of source code must retain the above copyright
41: * notice, this list of conditions and the following disclaimer.
42: * 2. Redistributions in binary form must reproduce the above copyright
43: * notice, this list of conditions and the following disclaimer in the
44: * documentation and/or other materials provided with the distribution.
1.53 millert 45: * 3. Neither the name of the University nor the names of its contributors
1.1 deraadt 46: * may be used to endorse or promote products derived from this software
47: * without specific prior written permission.
48: *
49: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
50: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
51: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
52: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
53: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
54: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
55: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
56: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
57: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
58: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
59: * SUCH DAMAGE.
60: */
61:
62: /*
63: * FTP User Program -- Command Interface.
64: */
65: #include <sys/types.h>
66: #include <sys/socket.h>
67:
1.18 millert 68: #include <ctype.h>
1.1 deraadt 69: #include <err.h>
70: #include <netdb.h>
71: #include <pwd.h>
72: #include <stdio.h>
1.39 deraadt 73: #include <errno.h>
1.18 millert 74: #include <stdlib.h>
1.1 deraadt 75: #include <string.h>
76: #include <unistd.h>
77:
1.95 jsing 78: #include <tls.h>
1.91 jsing 79:
80: #include "cmds.h"
1.1 deraadt 81: #include "ftp_var.h"
82:
1.86 jca 83: #ifndef SMALL
84: char * const ssl_verify_opts[] = {
85: #define SSL_CAFILE 0
86: "cafile",
87: #define SSL_CAPATH 1
88: "capath",
89: #define SSL_CIPHERS 2
90: "ciphers",
91: #define SSL_DONTVERIFY 3
92: "dont",
93: #define SSL_DOVERIFY 4
94: "do",
95: #define SSL_VERIFYDEPTH 5
96: "depth",
97: NULL
98: };
1.91 jsing 99:
1.95 jsing 100: struct tls_config *tls_config;
1.86 jca 101: #endif /* !SMALL */
102:
1.49 deraadt 103: int family = PF_UNSPEC;
1.81 halex 104: int pipeout;
1.49 deraadt 105:
1.1 deraadt 106: int
1.54 deraadt 107: main(volatile int argc, char *argv[])
1.1 deraadt 108: {
1.34 millert 109: int ch, top, rval;
1.1 deraadt 110: struct passwd *pw = NULL;
1.96 deraadt 111: char *cp, homedir[PATH_MAX];
1.38 millert 112: char *outfile = NULL;
1.62 tedu 113: const char *errstr;
1.28 millert 114: int dumb_terminal = 0;
1.91 jsing 115: #ifndef SMALL
116: long long depth;
117: #endif
1.1 deraadt 118:
1.44 itojun 119: ftpport = "ftp";
120: httpport = "http";
1.61 deraadt 121: #ifndef SMALL
122: httpsport = "https";
1.69 martynas 123: #endif /* !SMALL */
1.44 itojun 124: gateport = getenv("FTPSERVERPORT");
1.51 millert 125: if (gateport == NULL || *gateport == '\0')
1.44 itojun 126: gateport = "ftpgate";
1.1 deraadt 127: doglob = 1;
128: interactive = 1;
129: autologin = 1;
1.37 millert 130: passivemode = 1;
131: activefallback = 1;
1.17 millert 132: preserve = 1;
133: verbose = 0;
134: progress = 0;
1.36 millert 135: gatemode = 0;
1.25 millert 136: #ifndef SMALL
1.22 millert 137: editing = 0;
1.28 millert 138: el = NULL;
139: hist = NULL;
1.63 pyr 140: cookiefile = NULL;
1.67 martynas 141: resume = 0;
1.82 haesbaer 142: srcaddr = NULL;
1.77 martynas 143: marg_sl = sl_init();
1.69 martynas 144: #endif /* !SMALL */
1.8 kstailey 145: mark = HASHBYTES;
1.47 itojun 146: #ifdef INET6
147: epsv4 = 1;
148: #else
149: epsv4 = 0;
150: #endif
151: epsv4bad = 0;
1.1 deraadt 152:
1.37 millert 153: /* Set default operation mode based on FTPMODE environment variable */
1.51 millert 154: if ((cp = getenv("FTPMODE")) != NULL && *cp != '\0') {
1.37 millert 155: if (strcmp(cp, "passive") == 0) {
156: passivemode = 1;
157: activefallback = 0;
158: } else if (strcmp(cp, "active") == 0) {
159: passivemode = 0;
160: activefallback = 0;
161: } else if (strcmp(cp, "gate") == 0) {
162: gatemode = 1;
163: } else if (strcmp(cp, "auto") == 0) {
164: passivemode = 1;
165: activefallback = 1;
166: } else
167: warnx("unknown FTPMODE: %s. Using defaults", cp);
168: }
169:
170: if (strcmp(__progname, "gate-ftp") == 0)
1.36 millert 171: gatemode = 1;
172: gateserver = getenv("FTPSERVER");
1.97 tedu 173: if (gateserver == NULL)
174: gateserver = "";
1.36 millert 175: if (gatemode) {
176: if (*gateserver == '\0') {
177: warnx(
1.37 millert 178: "Neither $FTPSERVER nor $GATE_SERVER is defined; disabling gate-ftp");
1.36 millert 179: gatemode = 0;
180: }
181: }
1.17 millert 182:
1.31 millert 183: cp = getenv("TERM");
1.51 millert 184: dumb_terminal = (cp == NULL || *cp == '\0' || !strcmp(cp, "dumb") ||
1.31 millert 185: !strcmp(cp, "emacs") || !strcmp(cp, "su"));
1.17 millert 186: fromatty = isatty(fileno(stdin));
1.22 millert 187: if (fromatty) {
1.17 millert 188: verbose = 1; /* verbose if from a tty */
1.25 millert 189: #ifndef SMALL
1.28 millert 190: if (!dumb_terminal)
1.34 millert 191: editing = 1; /* editing mode on if tty is usable */
1.69 martynas 192: #endif /* !SMALL */
1.22 millert 193: }
1.30 deraadt 194:
195: ttyout = stdout;
1.33 millert 196: if (isatty(fileno(ttyout)) && !dumb_terminal && foregroundproc())
1.34 millert 197: progress = 1; /* progress bar on if tty is usable */
1.32 deraadt 198:
1.63 pyr 199: #ifndef SMALL
200: cookiefile = getenv("http_cookies");
1.99 sthen 201: if (tls_config == NULL) {
202: tls_config = tls_config_new();
203: if (tls_config == NULL)
204: errx(1, "tls config failed");
1.101 ! jsing 205: tls_config_set_protocols(tls_config, TLS_PROTOCOLS_ALL);
! 206: if (tls_config_set_ciphers(tls_config, "compat") != 0)
! 207: errx(1, "tls set ciphers failed");
1.99 sthen 208: }
1.101 ! jsing 209: #endif /* !SMALL */
1.99 sthen 210:
1.88 lteo 211: httpuseragent = NULL;
1.63 pyr 212:
1.86 jca 213: while ((ch = getopt(argc, argv,
1.100 tedu 214: "46AaCc:dD:Eegik:Mmno:pP:r:S:s:tU:vV")) != -1) {
1.1 deraadt 215: switch (ch) {
1.49 deraadt 216: case '4':
217: family = PF_INET;
218: break;
219: case '6':
220: family = PF_INET6;
221: break;
1.37 millert 222: case 'A':
223: activefallback = 0;
224: passivemode = 0;
225: break;
226:
1.17 millert 227: case 'a':
228: anonftp = 1;
229: break;
230:
1.67 martynas 231: case 'C':
232: #ifndef SMALL
233: resume = 1;
1.69 martynas 234: #endif /* !SMALL */
1.67 martynas 235: break;
236:
1.63 pyr 237: case 'c':
238: #ifndef SMALL
239: cookiefile = optarg;
1.69 martynas 240: #endif /* !SMALL */
1.63 pyr 241: break;
242:
1.87 deraadt 243: case 'D':
244: action = optarg;
245: break;
1.1 deraadt 246: case 'd':
1.70 martynas 247: #ifndef SMALL
1.1 deraadt 248: options |= SO_DEBUG;
249: debug++;
1.70 martynas 250: #endif /* !SMALL */
1.1 deraadt 251: break;
1.17 millert 252:
1.59 fgsch 253: case 'E':
254: epsv4 = 0;
255: break;
256:
1.28 millert 257: case 'e':
258: #ifndef SMALL
1.22 millert 259: editing = 0;
1.69 martynas 260: #endif /* !SMALL */
1.21 kstailey 261: break;
262:
1.1 deraadt 263: case 'g':
264: doglob = 0;
265: break;
266:
267: case 'i':
268: interactive = 0;
1.41 millert 269: break;
270:
1.65 espie 271: case 'k':
272: keep_alive_timeout = strtonum(optarg, 0, INT_MAX,
273: &errstr);
274: if (errstr != NULL) {
275: warnx("keep alive amount is %s: %s", errstr,
276: optarg);
277: usage();
278: }
279: break;
1.100 tedu 280: case 'M':
281: progress = 0;
282: break;
1.41 millert 283: case 'm':
1.42 millert 284: progress = -1;
1.1 deraadt 285: break;
286:
287: case 'n':
288: autologin = 0;
289: break;
290:
1.38 millert 291: case 'o':
292: outfile = optarg;
1.81 halex 293: if (*outfile == '\0') {
294: pipeout = 0;
295: outfile = NULL;
296: ttyout = stdout;
297: } else {
298: pipeout = strcmp(outfile, "-") == 0;
299: ttyout = pipeout ? stderr : stdout;
300: }
1.38 millert 301: break;
302:
1.3 deraadt 303: case 'p':
1.17 millert 304: passivemode = 1;
1.37 millert 305: activefallback = 0;
1.3 deraadt 306: break;
307:
1.17 millert 308: case 'P':
1.44 itojun 309: ftpport = optarg;
1.7 mickey 310: break;
311:
1.18 millert 312: case 'r':
1.62 tedu 313: retry_connect = strtonum(optarg, 0, INT_MAX, &errstr);
1.65 espie 314: if (errstr != NULL) {
315: warnx("retry amount is %s: %s", errstr,
1.62 tedu 316: optarg);
1.65 espie 317: usage();
318: }
1.18 millert 319: break;
320:
1.86 jca 321: case 'S':
322: #ifndef SMALL
323: cp = optarg;
324: while (*cp) {
325: char *str;
326: switch (getsubopt(&cp, ssl_verify_opts, &str)) {
327: case SSL_CAFILE:
328: if (str == NULL)
329: errx(1, "missing CA file");
1.95 jsing 330: if (tls_config_set_ca_file(
331: tls_config, str) != 0)
332: errx(1, "tls ca file failed");
1.86 jca 333: break;
334: case SSL_CAPATH:
335: if (str == NULL)
336: errx(1, "missing CA directory"
337: " path");
1.95 jsing 338: if (tls_config_set_ca_path(
339: tls_config, str) != 0)
340: errx(1, "tls ca path failed");
1.86 jca 341: break;
342: case SSL_CIPHERS:
343: if (str == NULL)
344: errx(1, "missing cipher list");
1.95 jsing 345: if (tls_config_set_ciphers(
346: tls_config, str) != 0)
347: errx(1, "tls ciphers failed");
1.86 jca 348: break;
349: case SSL_DONTVERIFY:
1.95 jsing 350: tls_config_insecure_noverifyhost(
351: tls_config);
352: tls_config_insecure_noverifycert(
353: tls_config);
1.86 jca 354: break;
355: case SSL_DOVERIFY:
1.95 jsing 356: tls_config_verify(tls_config);
1.86 jca 357: break;
358: case SSL_VERIFYDEPTH:
359: if (str == NULL)
360: errx(1, "missing depth");
1.91 jsing 361: depth = strtonum(str, 0, INT_MAX,
362: &errstr);
1.86 jca 363: if (errstr)
364: errx(1, "certificate "
365: "validation depth is %s",
366: errstr);
1.95 jsing 367: tls_config_set_verify_depth(
368: tls_config, (int)depth);
1.86 jca 369: break;
370: default:
371: errx(1, "unknown -S suboption `%s'",
372: suboptarg ? suboptarg : "");
373: /* NOTREACHED */
374: }
375: }
376: #endif
377: break;
378:
1.82 haesbaer 379: case 's':
380: #ifndef SMALL
381: srcaddr = optarg;
382: #endif /* !SMALL */
383: break;
384:
1.1 deraadt 385: case 't':
1.17 millert 386: trace = 1;
1.1 deraadt 387: break;
388:
1.89 halex 389: #ifndef SMALL
1.88 lteo 390: case 'U':
1.89 halex 391: free (httpuseragent);
1.88 lteo 392: if (strcspn(optarg, "\r\n") != strlen(optarg))
393: errx(1, "Invalid User-Agent: %s.", optarg);
394: if (asprintf(&httpuseragent, "User-Agent: %s",
395: optarg) == -1)
396: errx(1, "Can't allocate memory for HTTP(S) "
397: "User-Agent");
1.89 halex 398: break;
1.88 lteo 399: #endif /* !SMALL */
400:
1.1 deraadt 401: case 'v':
1.17 millert 402: verbose = 1;
403: break;
404:
405: case 'V':
406: verbose = 0;
1.1 deraadt 407: break;
408:
409: default:
1.17 millert 410: usage();
1.1 deraadt 411: }
412: }
413: argc -= optind;
414: argv += optind;
1.63 pyr 415:
416: #ifndef SMALL
417: cookie_load();
1.69 martynas 418: #endif /* !SMALL */
1.89 halex 419: if (httpuseragent == NULL)
420: httpuseragent = HTTP_USER_AGENT;
1.1 deraadt 421:
422: cpend = 0; /* no pending replies */
423: proxy = 0; /* proxy not active */
424: crflag = 1; /* strip c.r. on ascii gets */
425: sendport = -1; /* not using ports */
426: /*
427: * Set up the home directory in case we're globbing.
428: */
429: cp = getlogin();
430: if (cp != NULL) {
431: pw = getpwnam(cp);
432: }
433: if (pw == NULL)
434: pw = getpwuid(getuid());
435: if (pw != NULL) {
1.52 deraadt 436: (void)strlcpy(homedir, pw->pw_dir, sizeof homedir);
1.1 deraadt 437: home = homedir;
1.3 deraadt 438: }
1.9 michaels 439:
1.17 millert 440: setttywidth(0);
1.18 millert 441: (void)signal(SIGWINCH, setttywidth);
1.34 millert 442:
1.17 millert 443: if (argc > 0) {
1.44 itojun 444: if (isurl(argv[0])) {
1.38 millert 445: rval = auto_fetch(argc, argv, outfile);
1.17 millert 446: if (rval >= 0) /* -1 == connected and cd-ed */
447: exit(rval);
448: } else {
1.77 martynas 449: #ifndef SMALL
1.3 deraadt 450: char *xargv[5];
451:
452: if (setjmp(toplevel))
453: exit(0);
1.20 millert 454: (void)signal(SIGINT, (sig_t)intr);
455: (void)signal(SIGPIPE, (sig_t)lostpeer);
1.3 deraadt 456: xargv[0] = __progname;
1.17 millert 457: xargv[1] = argv[0];
458: xargv[2] = argv[1];
459: xargv[3] = argv[2];
460: xargv[4] = NULL;
1.18 millert 461: do {
462: setpeer(argc+1, xargv);
463: if (!retry_connect)
464: break;
465: if (!connected) {
466: macnum = 0;
1.30 deraadt 467: fputs("Retrying...\n", ttyout);
1.18 millert 468: sleep(retry_connect);
469: }
470: } while (!connected);
1.35 mickey 471: retry_connect = 0; /* connected, stop hiding msgs */
1.77 martynas 472: #endif /* !SMALL */
1.3 deraadt 473: }
1.1 deraadt 474: }
1.28 millert 475: #ifndef SMALL
476: controlediting();
1.1 deraadt 477: top = setjmp(toplevel) == 0;
478: if (top) {
1.20 millert 479: (void)signal(SIGINT, (sig_t)intr);
480: (void)signal(SIGPIPE, (sig_t)lostpeer);
1.1 deraadt 481: }
482: for (;;) {
483: cmdscanner(top);
484: top = 1;
485: }
1.77 martynas 486: #else /* !SMALL */
487: usage();
488: #endif /* !SMALL */
1.1 deraadt 489: }
490:
491: void
1.58 deraadt 492: intr(void)
1.1 deraadt 493: {
1.90 deraadt 494: int save_errno = errno;
1.1 deraadt 495:
1.90 deraadt 496: write(fileno(ttyout), "\n\r", 2);
1.17 millert 497: alarmtimer(0);
1.90 deraadt 498:
499: errno = save_errno;
1.1 deraadt 500: longjmp(toplevel, 1);
501: }
502:
503: void
1.58 deraadt 504: lostpeer(void)
1.1 deraadt 505: {
1.39 deraadt 506: int save_errno = errno;
1.1 deraadt 507:
1.17 millert 508: alarmtimer(0);
1.1 deraadt 509: if (connected) {
510: if (cout != NULL) {
1.66 moritz 511: (void)shutdown(fileno(cout), SHUT_RDWR);
1.18 millert 512: (void)fclose(cout);
1.1 deraadt 513: cout = NULL;
514: }
515: if (data >= 0) {
1.66 moritz 516: (void)shutdown(data, SHUT_RDWR);
1.18 millert 517: (void)close(data);
1.1 deraadt 518: data = -1;
519: }
520: connected = 0;
521: }
522: pswitch(1);
523: if (connected) {
524: if (cout != NULL) {
1.66 moritz 525: (void)shutdown(fileno(cout), SHUT_RDWR);
1.18 millert 526: (void)fclose(cout);
1.1 deraadt 527: cout = NULL;
528: }
529: connected = 0;
530: }
531: proxflag = 0;
532: pswitch(0);
1.39 deraadt 533: errno = save_errno;
1.1 deraadt 534: }
535:
1.77 martynas 536: #ifndef SMALL
1.1 deraadt 537: /*
1.17 millert 538: * Generate a prompt
539: */
1.1 deraadt 540: char *
1.58 deraadt 541: prompt(void)
1.1 deraadt 542: {
1.17 millert 543: return ("ftp> ");
1.1 deraadt 544: }
545:
546: /*
547: * Command parser.
548: */
549: void
1.58 deraadt 550: cmdscanner(int top)
1.1 deraadt 551: {
552: struct cmd *c;
1.17 millert 553: int num;
1.55 otto 554: HistEvent hev;
1.1 deraadt 555:
1.77 martynas 556: if (!top && !editing)
1.30 deraadt 557: (void)putc('\n', ttyout);
1.1 deraadt 558: for (;;) {
1.17 millert 559: if (!editing) {
560: if (fromatty) {
1.30 deraadt 561: fputs(prompt(), ttyout);
562: (void)fflush(ttyout);
1.17 millert 563: }
564: if (fgets(line, sizeof(line), stdin) == NULL)
565: quit(0, 0);
566: num = strlen(line);
567: if (num == 0)
568: break;
569: if (line[--num] == '\n') {
570: if (num == 0)
571: break;
572: line[num] = '\0';
573: } else if (num == sizeof(line) - 2) {
1.30 deraadt 574: fputs("sorry, input line too long.\n", ttyout);
1.17 millert 575: while ((num = getchar()) != '\n' && num != EOF)
576: /* void */;
577: break;
578: } /* else it was a line without a newline */
579: } else {
580: const char *buf;
581: cursor_pos = NULL;
582:
1.90 deraadt 583: if ((buf = el_gets(el, &num)) == NULL || num == 0) {
584: putc('\n', ttyout);
585: fflush(ttyout);
1.17 millert 586: quit(0, 0);
1.90 deraadt 587: }
1.46 fgsch 588: if (buf[--num] == '\n') {
1.17 millert 589: if (num == 0)
590: break;
1.46 fgsch 591: }
592: if (num >= sizeof(line)) {
1.30 deraadt 593: fputs("sorry, input line too long.\n", ttyout);
1.1 deraadt 594: break;
1.17 millert 595: }
1.34 millert 596: memcpy(line, buf, (size_t)num);
1.17 millert 597: line[num] = '\0';
1.55 otto 598: history(hist, &hev, H_ENTER, buf);
1.17 millert 599: }
600:
1.1 deraadt 601: makeargv();
1.17 millert 602: if (margc == 0)
1.1 deraadt 603: continue;
604: c = getcmd(margv[0]);
605: if (c == (struct cmd *)-1) {
1.30 deraadt 606: fputs("?Ambiguous command.\n", ttyout);
1.1 deraadt 607: continue;
608: }
609: if (c == 0) {
1.24 millert 610: /*
611: * Give editline(3) a shot at unknown commands.
612: * XXX - bogus commands with a colon in
613: * them will not elicit an error.
614: */
1.45 markus 615: if (editing &&
1.55 otto 616: el_parse(el, margc, (const char **)margv) != 0)
1.30 deraadt 617: fputs("?Invalid command.\n", ttyout);
1.1 deraadt 618: continue;
619: }
620: if (c->c_conn && !connected) {
1.30 deraadt 621: fputs("Not connected.\n", ttyout);
1.1 deraadt 622: continue;
623: }
1.17 millert 624: confirmrest = 0;
1.1 deraadt 625: (*c->c_handler)(margc, margv);
626: if (bell && c->c_bell)
1.30 deraadt 627: (void)putc('\007', ttyout);
1.1 deraadt 628: if (c->c_handler != help)
629: break;
630: }
1.20 millert 631: (void)signal(SIGINT, (sig_t)intr);
632: (void)signal(SIGPIPE, (sig_t)lostpeer);
1.1 deraadt 633: }
634:
635: struct cmd *
1.58 deraadt 636: getcmd(const char *name)
1.1 deraadt 637: {
1.17 millert 638: const char *p, *q;
1.1 deraadt 639: struct cmd *c, *found;
640: int nmatches, longest;
1.2 deraadt 641:
642: if (name == NULL)
643: return (0);
1.1 deraadt 644:
645: longest = 0;
646: nmatches = 0;
647: found = 0;
1.17 millert 648: for (c = cmdtab; (p = c->c_name) != NULL; c++) {
1.1 deraadt 649: for (q = name; *q == *p++; q++)
650: if (*q == 0) /* exact match? */
651: return (c);
652: if (!*q) { /* the name was a prefix */
653: if (q - name > longest) {
654: longest = q - name;
655: nmatches = 1;
656: found = c;
657: } else if (q - name == longest)
658: nmatches++;
659: }
660: }
661: if (nmatches > 1)
662: return ((struct cmd *)-1);
663: return (found);
664: }
665:
666: /*
667: * Slice a string up into argc/argv.
668: */
669:
670: int slrflag;
671:
672: void
1.58 deraadt 673: makeargv(void)
1.1 deraadt 674: {
1.17 millert 675: char *argp;
1.1 deraadt 676:
677: stringbase = line; /* scan from first of buffer */
678: argbase = argbuf; /* store from first of buffer */
679: slrflag = 0;
1.17 millert 680: marg_sl->sl_cur = 0; /* reset to start of marg_sl */
1.1 deraadt 681: for (margc = 0; ; margc++) {
1.17 millert 682: argp = slurpstring();
683: sl_add(marg_sl, argp);
684: if (argp == NULL)
1.1 deraadt 685: break;
686: }
1.17 millert 687: if (cursor_pos == line) {
688: cursor_argc = 0;
689: cursor_argo = 0;
690: } else if (cursor_pos != NULL) {
691: cursor_argc = margc;
692: cursor_argo = strlen(margv[margc-1]);
693: }
694: }
1.1 deraadt 695:
1.17 millert 696: #define INC_CHKCURSOR(x) { (x)++ ; \
697: if (x == cursor_pos) { \
698: cursor_argc = margc; \
699: cursor_argo = ap-argbase; \
700: cursor_pos = NULL; \
701: } }
1.1 deraadt 702:
703: /*
704: * Parse string into argbuf;
705: * implemented with FSM to
706: * handle quoting and strings
707: */
708: char *
1.58 deraadt 709: slurpstring(void)
1.1 deraadt 710: {
711: int got_one = 0;
712: char *sb = stringbase;
713: char *ap = argbase;
714: char *tmp = argbase; /* will return this if token found */
715:
716: if (*sb == '!' || *sb == '$') { /* recognize ! as a token for shell */
717: switch (slrflag) { /* and $ as token for macro invoke */
718: case 0:
719: slrflag++;
1.17 millert 720: INC_CHKCURSOR(stringbase);
1.1 deraadt 721: return ((*sb == '!') ? "!" : "$");
722: /* NOTREACHED */
723: case 1:
724: slrflag++;
725: altarg = stringbase;
726: break;
727: default:
728: break;
729: }
730: }
731:
732: S0:
733: switch (*sb) {
734:
735: case '\0':
736: goto OUT;
737:
738: case ' ':
739: case '\t':
1.17 millert 740: INC_CHKCURSOR(sb);
741: goto S0;
1.1 deraadt 742:
743: default:
744: switch (slrflag) {
745: case 0:
746: slrflag++;
747: break;
748: case 1:
749: slrflag++;
750: altarg = sb;
751: break;
752: default:
753: break;
754: }
755: goto S1;
756: }
757:
758: S1:
759: switch (*sb) {
760:
761: case ' ':
762: case '\t':
763: case '\0':
764: goto OUT; /* end of token */
765:
766: case '\\':
1.17 millert 767: INC_CHKCURSOR(sb);
768: goto S2; /* slurp next character */
1.1 deraadt 769:
770: case '"':
1.17 millert 771: INC_CHKCURSOR(sb);
772: goto S3; /* slurp quoted string */
1.1 deraadt 773:
774: default:
1.17 millert 775: *ap = *sb; /* add character to token */
776: ap++;
777: INC_CHKCURSOR(sb);
1.1 deraadt 778: got_one = 1;
779: goto S1;
780: }
781:
782: S2:
783: switch (*sb) {
784:
785: case '\0':
786: goto OUT;
787:
788: default:
1.17 millert 789: *ap = *sb;
790: ap++;
791: INC_CHKCURSOR(sb);
1.1 deraadt 792: got_one = 1;
793: goto S1;
794: }
795:
796: S3:
797: switch (*sb) {
798:
799: case '\0':
800: goto OUT;
801:
802: case '"':
1.17 millert 803: INC_CHKCURSOR(sb);
804: goto S1;
1.1 deraadt 805:
806: default:
1.17 millert 807: *ap = *sb;
808: ap++;
809: INC_CHKCURSOR(sb);
1.1 deraadt 810: got_one = 1;
811: goto S3;
812: }
813:
814: OUT:
815: if (got_one)
816: *ap++ = '\0';
817: argbase = ap; /* update storage pointer */
818: stringbase = sb; /* update scan pointer */
819: if (got_one) {
820: return (tmp);
821: }
822: switch (slrflag) {
823: case 0:
824: slrflag++;
825: break;
826: case 1:
827: slrflag++;
828: altarg = (char *) 0;
829: break;
830: default:
831: break;
832: }
833: return ((char *)0);
834: }
835:
836: /*
837: * Help command.
838: * Call each command handler with argc == 0 and argv[0] == name.
839: */
840: void
1.58 deraadt 841: help(int argc, char *argv[])
1.1 deraadt 842: {
843: struct cmd *c;
844:
845: if (argc == 1) {
1.17 millert 846: StringList *buf;
1.1 deraadt 847:
1.17 millert 848: buf = sl_init();
1.30 deraadt 849: fprintf(ttyout, "%sommands may be abbreviated. Commands are:\n\n",
1.17 millert 850: proxy ? "Proxy c" : "C");
851: for (c = cmdtab; c < &cmdtab[NCMDS]; c++)
852: if (c->c_name && (!proxy || c->c_proxy))
853: sl_add(buf, c->c_name);
854: list_vertical(buf);
855: sl_free(buf, 0);
1.1 deraadt 856: return;
857: }
1.17 millert 858:
1.18 millert 859: #define HELPINDENT ((int) sizeof("disconnect"))
1.17 millert 860:
1.1 deraadt 861: while (--argc > 0) {
862: char *arg;
1.17 millert 863:
1.1 deraadt 864: arg = *++argv;
865: c = getcmd(arg);
866: if (c == (struct cmd *)-1)
1.30 deraadt 867: fprintf(ttyout, "?Ambiguous help command %s\n", arg);
1.1 deraadt 868: else if (c == (struct cmd *)0)
1.30 deraadt 869: fprintf(ttyout, "?Invalid help command %s\n", arg);
1.1 deraadt 870: else
1.30 deraadt 871: fprintf(ttyout, "%-*s\t%s\n", HELPINDENT,
1.1 deraadt 872: c->c_name, c->c_help);
873: }
1.17 millert 874: }
1.77 martynas 875: #endif /* !SMALL */
1.17 millert 876:
877: void
1.58 deraadt 878: usage(void)
1.17 millert 879: {
1.92 lteo 880: fprintf(stderr, "usage: "
1.70 martynas 881: #ifndef SMALL
1.100 tedu 882: "%1$s [-46AadEegiMmnptVv] [-D title] [-k seconds] [-P port] "
1.87 deraadt 883: "[-r seconds]\n"
884: " [-s srcaddr] [host [port]]\n"
1.92 lteo 885: " %1$s [-C] [-o output] [-s srcaddr]\n"
886: " ftp://[user:password@]host[:port]/file[/] ...\n"
887: " %1$s [-C] [-c cookie] [-o output] [-S ssl_options] "
1.84 haesbaer 888: "[-s srcaddr]\n"
1.88 lteo 889: " [-U useragent] "
1.92 lteo 890: "http[s]://[user:password@]host[:port]/file ...\n"
891: " %1$s [-C] [-o output] [-s srcaddr] file:file ...\n"
892: " %1$s [-C] [-o output] [-s srcaddr] host:/file[/] ...\n",
1.69 martynas 893: #else /* !SMALL */
1.92 lteo 894: "%1$s [-o output] ftp://[user:password@]host[:port]/file[/] ...\n"
895: " %1$s [-o output] http://host[:port]/file ...\n"
896: " %1$s [-o output] file:file ...\n"
897: " %1$s [-o output] host:/file[/] ...\n",
1.69 martynas 898: #endif /* !SMALL */
1.92 lteo 899: __progname);
1.17 millert 900: exit(1);
1.1 deraadt 901: }
![[BACK]](/icons/back.gif){kind=icon}
Return to main.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / src / usr.bin / ftp