Annotation of src/usr.bin/ftp/main.c, Revision 1.44
1.44 ! itojun 1: /* $OpenBSD: main.c,v 1.43 1998/11/21 02:58:37 d 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.
45: * 3. All advertising materials mentioning features or use of this software
46: * must display the following acknowledgement:
47: * This product includes software developed by the University of
48: * California, Berkeley and its contributors.
49: * 4. Neither the name of the University nor the names of its contributors
50: * may be used to endorse or promote products derived from this software
51: * without specific prior written permission.
52: *
53: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
54: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
55: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
56: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
57: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
58: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
59: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
60: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
61: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
62: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
63: * SUCH DAMAGE.
64: */
65:
66: #ifndef lint
67: static char copyright[] =
68: "@(#) Copyright (c) 1985, 1989, 1993, 1994\n\
69: The Regents of the University of California. All rights reserved.\n";
70: #endif /* not lint */
71:
72: #ifndef lint
73: #if 0
74: static char sccsid[] = "@(#)main.c 8.6 (Berkeley) 10/9/94";
75: #else
1.44 ! itojun 76: static char rcsid[] = "$OpenBSD: main.c,v 1.43 1998/11/21 02:58:37 d Exp $";
1.1 deraadt 77: #endif
78: #endif /* not lint */
79:
80: /*
81: * FTP User Program -- Command Interface.
82: */
83: #include <sys/types.h>
84: #include <sys/socket.h>
85:
1.18 millert 86: #include <ctype.h>
1.1 deraadt 87: #include <err.h>
88: #include <netdb.h>
89: #include <pwd.h>
90: #include <stdio.h>
1.39 deraadt 91: #include <errno.h>
1.18 millert 92: #include <stdlib.h>
1.1 deraadt 93: #include <string.h>
94: #include <unistd.h>
95:
96: #include "ftp_var.h"
97:
1.34 millert 98: int main __P((int, char **));
99:
1.1 deraadt 100: int
101: main(argc, argv)
102: int argc;
103: char *argv[];
104: {
1.34 millert 105: int ch, top, rval;
1.1 deraadt 106: struct passwd *pw = NULL;
1.44 ! itojun 107: char *cp, homedir[MAXPATHLEN];
1.38 millert 108: char *outfile = NULL;
1.28 millert 109: int dumb_terminal = 0;
1.1 deraadt 110:
1.44 ! itojun 111: ftpport = "ftp";
! 112: httpport = "http";
! 113: gateport = getenv("FTPSERVERPORT");
! 114: if (gateport == NULL)
! 115: gateport = "ftpgate";
1.1 deraadt 116: doglob = 1;
117: interactive = 1;
118: autologin = 1;
1.37 millert 119: passivemode = 1;
120: activefallback = 1;
1.17 millert 121: preserve = 1;
122: verbose = 0;
123: progress = 0;
1.36 millert 124: gatemode = 0;
1.25 millert 125: #ifndef SMALL
1.22 millert 126: editing = 0;
1.28 millert 127: el = NULL;
128: hist = NULL;
1.22 millert 129: #endif
1.8 kstailey 130: mark = HASHBYTES;
1.17 millert 131: marg_sl = sl_init();
1.1 deraadt 132:
1.37 millert 133: /* Set default operation mode based on FTPMODE environment variable */
134: if ((cp = getenv("FTPMODE")) != NULL) {
135: if (strcmp(cp, "passive") == 0) {
136: passivemode = 1;
137: activefallback = 0;
138: } else if (strcmp(cp, "active") == 0) {
139: passivemode = 0;
140: activefallback = 0;
141: } else if (strcmp(cp, "gate") == 0) {
142: gatemode = 1;
143: } else if (strcmp(cp, "auto") == 0) {
144: passivemode = 1;
145: activefallback = 1;
146: } else
147: warnx("unknown FTPMODE: %s. Using defaults", cp);
148: }
149:
150: if (strcmp(__progname, "gate-ftp") == 0)
1.36 millert 151: gatemode = 1;
152: gateserver = getenv("FTPSERVER");
153: if (gateserver == NULL || *gateserver == '\0')
154: gateserver = GATE_SERVER;
155: if (gatemode) {
156: if (*gateserver == '\0') {
157: warnx(
1.37 millert 158: "Neither $FTPSERVER nor $GATE_SERVER is defined; disabling gate-ftp");
1.36 millert 159: gatemode = 0;
160: }
161: }
1.17 millert 162:
1.31 millert 163: cp = getenv("TERM");
164: dumb_terminal = (cp == NULL || !strcmp(cp, "dumb") ||
165: !strcmp(cp, "emacs") || !strcmp(cp, "su"));
1.17 millert 166: fromatty = isatty(fileno(stdin));
1.22 millert 167: if (fromatty) {
1.17 millert 168: verbose = 1; /* verbose if from a tty */
1.25 millert 169: #ifndef SMALL
1.28 millert 170: if (!dumb_terminal)
1.34 millert 171: editing = 1; /* editing mode on if tty is usable */
1.22 millert 172: #endif
173: }
1.30 deraadt 174:
175: ttyout = stdout;
1.33 millert 176: if (isatty(fileno(ttyout)) && !dumb_terminal && foregroundproc())
1.34 millert 177: progress = 1; /* progress bar on if tty is usable */
1.32 deraadt 178:
1.41 millert 179: while ((ch = getopt(argc, argv, "Aadegimno:pP:r:tvV")) != -1) {
1.1 deraadt 180: switch (ch) {
1.37 millert 181: case 'A':
182: activefallback = 0;
183: passivemode = 0;
184: break;
185:
1.17 millert 186: case 'a':
187: anonftp = 1;
188: break;
189:
1.1 deraadt 190: case 'd':
191: options |= SO_DEBUG;
192: debug++;
193: break;
1.17 millert 194:
1.28 millert 195: case 'e':
196: #ifndef SMALL
1.22 millert 197: editing = 0;
198: #endif
1.21 kstailey 199: break;
200:
1.1 deraadt 201: case 'g':
202: doglob = 0;
203: break;
204:
205: case 'i':
206: interactive = 0;
1.41 millert 207: break;
208:
209: case 'm':
1.42 millert 210: progress = -1;
1.1 deraadt 211: break;
212:
213: case 'n':
214: autologin = 0;
215: break;
216:
1.38 millert 217: case 'o':
218: outfile = optarg;
219: if (strcmp(outfile, "-") == 0)
220: ttyout = stderr;
221: break;
222:
1.3 deraadt 223: case 'p':
1.17 millert 224: passivemode = 1;
1.37 millert 225: activefallback = 0;
1.3 deraadt 226: break;
227:
1.17 millert 228: case 'P':
1.44 ! itojun 229: ftpport = optarg;
1.7 mickey 230: break;
231:
1.18 millert 232: case 'r':
233: if (isdigit(*optarg))
234: retry_connect = atoi(optarg);
235: else
236: errx(1, "-r requires numeric argument");
237: break;
238:
1.1 deraadt 239: case 't':
1.17 millert 240: trace = 1;
1.1 deraadt 241: break;
242:
243: case 'v':
1.17 millert 244: verbose = 1;
245: break;
246:
247: case 'V':
248: verbose = 0;
1.1 deraadt 249: break;
250:
251: default:
1.17 millert 252: usage();
1.1 deraadt 253: }
254: }
255: argc -= optind;
256: argv += optind;
257:
258: cpend = 0; /* no pending replies */
259: proxy = 0; /* proxy not active */
260: crflag = 1; /* strip c.r. on ascii gets */
261: sendport = -1; /* not using ports */
262: /*
263: * Set up the home directory in case we're globbing.
264: */
265: cp = getlogin();
266: if (cp != NULL) {
267: pw = getpwnam(cp);
268: }
269: if (pw == NULL)
270: pw = getpwuid(getuid());
271: if (pw != NULL) {
272: home = homedir;
1.18 millert 273: (void)strcpy(home, pw->pw_dir);
1.3 deraadt 274: }
1.9 michaels 275:
1.17 millert 276: setttywidth(0);
1.18 millert 277: (void)signal(SIGWINCH, setttywidth);
1.17 millert 278:
1.34 millert 279: #ifdef __GNUC__ /* XXX: to shut up gcc warnings */
280: (void)&argc;
281: (void)&argv;
282: #endif
283:
1.17 millert 284: if (argc > 0) {
1.44 ! itojun 285: if (isurl(argv[0])) {
1.17 millert 286: anonftp = 1; /* Handle "automatic" transfers. */
1.38 millert 287: rval = auto_fetch(argc, argv, outfile);
1.17 millert 288: if (rval >= 0) /* -1 == connected and cd-ed */
289: exit(rval);
290: } else {
1.3 deraadt 291: char *xargv[5];
292:
293: if (setjmp(toplevel))
294: exit(0);
1.20 millert 295: (void)signal(SIGINT, (sig_t)intr);
296: (void)signal(SIGPIPE, (sig_t)lostpeer);
1.3 deraadt 297: xargv[0] = __progname;
1.17 millert 298: xargv[1] = argv[0];
299: xargv[2] = argv[1];
300: xargv[3] = argv[2];
301: xargv[4] = NULL;
1.18 millert 302: do {
303: setpeer(argc+1, xargv);
304: if (!retry_connect)
305: break;
306: if (!connected) {
307: macnum = 0;
1.30 deraadt 308: fputs("Retrying...\n", ttyout);
1.18 millert 309: sleep(retry_connect);
310: }
311: } while (!connected);
1.35 mickey 312: retry_connect = 0; /* connected, stop hiding msgs */
1.3 deraadt 313: }
1.1 deraadt 314: }
1.28 millert 315: #ifndef SMALL
316: controlediting();
317: #endif /* !SMALL */
1.1 deraadt 318: top = setjmp(toplevel) == 0;
319: if (top) {
1.20 millert 320: (void)signal(SIGINT, (sig_t)intr);
321: (void)signal(SIGPIPE, (sig_t)lostpeer);
1.1 deraadt 322: }
323: for (;;) {
324: cmdscanner(top);
325: top = 1;
326: }
327: }
328:
329: void
330: intr()
331: {
332:
1.17 millert 333: alarmtimer(0);
1.1 deraadt 334: longjmp(toplevel, 1);
335: }
336:
337: void
338: lostpeer()
339: {
1.39 deraadt 340: int save_errno = errno;
1.1 deraadt 341:
1.17 millert 342: alarmtimer(0);
1.1 deraadt 343: if (connected) {
344: if (cout != NULL) {
1.18 millert 345: (void)shutdown(fileno(cout), 1+1);
346: (void)fclose(cout);
1.1 deraadt 347: cout = NULL;
348: }
349: if (data >= 0) {
1.18 millert 350: (void)shutdown(data, 1+1);
351: (void)close(data);
1.1 deraadt 352: data = -1;
353: }
354: connected = 0;
355: }
356: pswitch(1);
357: if (connected) {
358: if (cout != NULL) {
1.18 millert 359: (void)shutdown(fileno(cout), 1+1);
360: (void)fclose(cout);
1.1 deraadt 361: cout = NULL;
362: }
363: connected = 0;
364: }
365: proxflag = 0;
366: pswitch(0);
1.39 deraadt 367: errno = save_errno;
1.1 deraadt 368: }
369:
370: /*
1.17 millert 371: * Generate a prompt
372: */
1.1 deraadt 373: char *
1.17 millert 374: prompt()
1.1 deraadt 375: {
1.17 millert 376: return ("ftp> ");
1.1 deraadt 377: }
378:
379: /*
380: * Command parser.
381: */
382: void
383: cmdscanner(top)
384: int top;
385: {
386: struct cmd *c;
1.17 millert 387: int num;
1.1 deraadt 388:
1.17 millert 389: if (!top
1.25 millert 390: #ifndef SMALL
1.17 millert 391: && !editing
1.25 millert 392: #endif /* !SMALL */
1.17 millert 393: )
1.30 deraadt 394: (void)putc('\n', ttyout);
1.1 deraadt 395: for (;;) {
1.25 millert 396: #ifndef SMALL
1.17 millert 397: if (!editing) {
1.25 millert 398: #endif /* !SMALL */
1.17 millert 399: if (fromatty) {
1.30 deraadt 400: fputs(prompt(), ttyout);
401: (void)fflush(ttyout);
1.17 millert 402: }
403: if (fgets(line, sizeof(line), stdin) == NULL)
404: quit(0, 0);
405: num = strlen(line);
406: if (num == 0)
407: break;
408: if (line[--num] == '\n') {
409: if (num == 0)
410: break;
411: line[num] = '\0';
412: } else if (num == sizeof(line) - 2) {
1.30 deraadt 413: fputs("sorry, input line too long.\n", ttyout);
1.17 millert 414: while ((num = getchar()) != '\n' && num != EOF)
415: /* void */;
416: break;
417: } /* else it was a line without a newline */
1.25 millert 418: #ifndef SMALL
1.17 millert 419: } else {
420: const char *buf;
421: cursor_pos = NULL;
422:
423: if ((buf = el_gets(el, &num)) == NULL || num == 0)
424: quit(0, 0);
425: if (line[--num] == '\n') {
426: if (num == 0)
427: break;
428: } else if (num >= sizeof(line)) {
1.30 deraadt 429: fputs("sorry, input line too long.\n", ttyout);
1.1 deraadt 430: break;
1.17 millert 431: }
1.34 millert 432: memcpy(line, buf, (size_t)num);
1.17 millert 433: line[num] = '\0';
434: history(hist, H_ENTER, buf);
435: }
1.25 millert 436: #endif /* !SMALL */
1.17 millert 437:
1.1 deraadt 438: makeargv();
1.17 millert 439: if (margc == 0)
1.1 deraadt 440: continue;
441: c = getcmd(margv[0]);
442: if (c == (struct cmd *)-1) {
1.30 deraadt 443: fputs("?Ambiguous command.\n", ttyout);
1.1 deraadt 444: continue;
445: }
446: if (c == 0) {
1.25 millert 447: #ifndef SMALL
1.24 millert 448: /*
449: * Give editline(3) a shot at unknown commands.
450: * XXX - bogus commands with a colon in
451: * them will not elicit an error.
452: */
453: if (el_parse(el, margc, margv) != 0)
1.25 millert 454: #endif /* !SMALL */
1.30 deraadt 455: fputs("?Invalid command.\n", ttyout);
1.1 deraadt 456: continue;
457: }
458: if (c->c_conn && !connected) {
1.30 deraadt 459: fputs("Not connected.\n", ttyout);
1.1 deraadt 460: continue;
461: }
1.17 millert 462: confirmrest = 0;
1.1 deraadt 463: (*c->c_handler)(margc, margv);
464: if (bell && c->c_bell)
1.30 deraadt 465: (void)putc('\007', ttyout);
1.1 deraadt 466: if (c->c_handler != help)
467: break;
468: }
1.20 millert 469: (void)signal(SIGINT, (sig_t)intr);
470: (void)signal(SIGPIPE, (sig_t)lostpeer);
1.1 deraadt 471: }
472:
473: struct cmd *
474: getcmd(name)
1.17 millert 475: const char *name;
1.1 deraadt 476: {
1.17 millert 477: const char *p, *q;
1.1 deraadt 478: struct cmd *c, *found;
479: int nmatches, longest;
1.2 deraadt 480:
481: if (name == NULL)
482: return (0);
1.1 deraadt 483:
484: longest = 0;
485: nmatches = 0;
486: found = 0;
1.17 millert 487: for (c = cmdtab; (p = c->c_name) != NULL; c++) {
1.1 deraadt 488: for (q = name; *q == *p++; q++)
489: if (*q == 0) /* exact match? */
490: return (c);
491: if (!*q) { /* the name was a prefix */
492: if (q - name > longest) {
493: longest = q - name;
494: nmatches = 1;
495: found = c;
496: } else if (q - name == longest)
497: nmatches++;
498: }
499: }
500: if (nmatches > 1)
501: return ((struct cmd *)-1);
502: return (found);
503: }
504:
505: /*
506: * Slice a string up into argc/argv.
507: */
508:
509: int slrflag;
510:
511: void
512: makeargv()
513: {
1.17 millert 514: char *argp;
1.1 deraadt 515:
516: stringbase = line; /* scan from first of buffer */
517: argbase = argbuf; /* store from first of buffer */
518: slrflag = 0;
1.17 millert 519: marg_sl->sl_cur = 0; /* reset to start of marg_sl */
1.1 deraadt 520: for (margc = 0; ; margc++) {
1.17 millert 521: argp = slurpstring();
522: sl_add(marg_sl, argp);
523: if (argp == NULL)
1.1 deraadt 524: break;
525: }
1.25 millert 526: #ifndef SMALL
1.17 millert 527: if (cursor_pos == line) {
528: cursor_argc = 0;
529: cursor_argo = 0;
530: } else if (cursor_pos != NULL) {
531: cursor_argc = margc;
532: cursor_argo = strlen(margv[margc-1]);
533: }
1.25 millert 534: #endif /* !SMALL */
1.17 millert 535: }
1.1 deraadt 536:
1.25 millert 537: #ifdef SMALL
1.17 millert 538: #define INC_CHKCURSOR(x) (x)++
1.25 millert 539: #else /* !SMALL */
1.17 millert 540: #define INC_CHKCURSOR(x) { (x)++ ; \
541: if (x == cursor_pos) { \
542: cursor_argc = margc; \
543: cursor_argo = ap-argbase; \
544: cursor_pos = NULL; \
545: } }
546:
1.25 millert 547: #endif /* !SMALL */
1.1 deraadt 548:
549: /*
550: * Parse string into argbuf;
551: * implemented with FSM to
552: * handle quoting and strings
553: */
554: char *
555: slurpstring()
556: {
557: int got_one = 0;
558: char *sb = stringbase;
559: char *ap = argbase;
560: char *tmp = argbase; /* will return this if token found */
561:
562: if (*sb == '!' || *sb == '$') { /* recognize ! as a token for shell */
563: switch (slrflag) { /* and $ as token for macro invoke */
564: case 0:
565: slrflag++;
1.17 millert 566: INC_CHKCURSOR(stringbase);
1.1 deraadt 567: return ((*sb == '!') ? "!" : "$");
568: /* NOTREACHED */
569: case 1:
570: slrflag++;
571: altarg = stringbase;
572: break;
573: default:
574: break;
575: }
576: }
577:
578: S0:
579: switch (*sb) {
580:
581: case '\0':
582: goto OUT;
583:
584: case ' ':
585: case '\t':
1.17 millert 586: INC_CHKCURSOR(sb);
587: goto S0;
1.1 deraadt 588:
589: default:
590: switch (slrflag) {
591: case 0:
592: slrflag++;
593: break;
594: case 1:
595: slrflag++;
596: altarg = sb;
597: break;
598: default:
599: break;
600: }
601: goto S1;
602: }
603:
604: S1:
605: switch (*sb) {
606:
607: case ' ':
608: case '\t':
609: case '\0':
610: goto OUT; /* end of token */
611:
612: case '\\':
1.17 millert 613: INC_CHKCURSOR(sb);
614: goto S2; /* slurp next character */
1.1 deraadt 615:
616: case '"':
1.17 millert 617: INC_CHKCURSOR(sb);
618: goto S3; /* slurp quoted string */
1.1 deraadt 619:
620: default:
1.17 millert 621: *ap = *sb; /* add character to token */
622: ap++;
623: INC_CHKCURSOR(sb);
1.1 deraadt 624: got_one = 1;
625: goto S1;
626: }
627:
628: S2:
629: switch (*sb) {
630:
631: case '\0':
632: goto OUT;
633:
634: default:
1.17 millert 635: *ap = *sb;
636: ap++;
637: INC_CHKCURSOR(sb);
1.1 deraadt 638: got_one = 1;
639: goto S1;
640: }
641:
642: S3:
643: switch (*sb) {
644:
645: case '\0':
646: goto OUT;
647:
648: case '"':
1.17 millert 649: INC_CHKCURSOR(sb);
650: goto S1;
1.1 deraadt 651:
652: default:
1.17 millert 653: *ap = *sb;
654: ap++;
655: INC_CHKCURSOR(sb);
1.1 deraadt 656: got_one = 1;
657: goto S3;
658: }
659:
660: OUT:
661: if (got_one)
662: *ap++ = '\0';
663: argbase = ap; /* update storage pointer */
664: stringbase = sb; /* update scan pointer */
665: if (got_one) {
666: return (tmp);
667: }
668: switch (slrflag) {
669: case 0:
670: slrflag++;
671: break;
672: case 1:
673: slrflag++;
674: altarg = (char *) 0;
675: break;
676: default:
677: break;
678: }
679: return ((char *)0);
680: }
681:
682: /*
683: * Help command.
684: * Call each command handler with argc == 0 and argv[0] == name.
685: */
686: void
687: help(argc, argv)
688: int argc;
689: char *argv[];
690: {
691: struct cmd *c;
692:
693: if (argc == 1) {
1.17 millert 694: StringList *buf;
1.1 deraadt 695:
1.17 millert 696: buf = sl_init();
1.30 deraadt 697: fprintf(ttyout, "%sommands may be abbreviated. Commands are:\n\n",
1.17 millert 698: proxy ? "Proxy c" : "C");
699: for (c = cmdtab; c < &cmdtab[NCMDS]; c++)
700: if (c->c_name && (!proxy || c->c_proxy))
701: sl_add(buf, c->c_name);
702: list_vertical(buf);
703: sl_free(buf, 0);
1.1 deraadt 704: return;
705: }
1.17 millert 706:
1.18 millert 707: #define HELPINDENT ((int) sizeof("disconnect"))
1.17 millert 708:
1.1 deraadt 709: while (--argc > 0) {
710: char *arg;
1.17 millert 711:
1.1 deraadt 712: arg = *++argv;
713: c = getcmd(arg);
714: if (c == (struct cmd *)-1)
1.30 deraadt 715: fprintf(ttyout, "?Ambiguous help command %s\n", arg);
1.1 deraadt 716: else if (c == (struct cmd *)0)
1.30 deraadt 717: fprintf(ttyout, "?Invalid help command %s\n", arg);
1.1 deraadt 718: else
1.30 deraadt 719: fprintf(ttyout, "%-*s\t%s\n", HELPINDENT,
1.1 deraadt 720: c->c_name, c->c_help);
721: }
1.17 millert 722: }
723:
724: void
725: usage()
726: {
727: (void)fprintf(stderr,
1.43 d 728: "usage: %s [-adegimnptvV] [-r <seconds>] [host [port]]\n"
1.17 millert 729: " %s host:path[/]\n"
730: " %s ftp://host[:port]/path[/]\n"
731: " %s http://host[:port]/file\n",
732: __progname, __progname, __progname, __progname);
733: exit(1);
1.1 deraadt 734: }
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