Annotation of src/usr.bin/ftp/main.c, Revision 1.75
1.75 ! deraadt 1: /* $OpenBSD: main.c,v 1.74 2009/04/27 08:32:15 sobrado 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:
78: #include "ftp_var.h"
79:
1.49 deraadt 80: int family = PF_UNSPEC;
81:
1.1 deraadt 82: int
1.54 deraadt 83: main(volatile int argc, char *argv[])
1.1 deraadt 84: {
1.34 millert 85: int ch, top, rval;
1.1 deraadt 86: struct passwd *pw = NULL;
1.44 itojun 87: char *cp, homedir[MAXPATHLEN];
1.38 millert 88: char *outfile = NULL;
1.62 tedu 89: const char *errstr;
1.28 millert 90: int dumb_terminal = 0;
1.1 deraadt 91:
1.44 itojun 92: ftpport = "ftp";
93: httpport = "http";
1.61 deraadt 94: #ifndef SMALL
95: httpsport = "https";
1.69 martynas 96: #endif /* !SMALL */
1.44 itojun 97: gateport = getenv("FTPSERVERPORT");
1.51 millert 98: if (gateport == NULL || *gateport == '\0')
1.44 itojun 99: gateport = "ftpgate";
1.1 deraadt 100: doglob = 1;
101: interactive = 1;
102: autologin = 1;
1.37 millert 103: passivemode = 1;
104: activefallback = 1;
1.17 millert 105: preserve = 1;
106: verbose = 0;
107: progress = 0;
1.36 millert 108: gatemode = 0;
1.25 millert 109: #ifndef SMALL
1.22 millert 110: editing = 0;
1.28 millert 111: el = NULL;
112: hist = NULL;
1.63 pyr 113: cookiefile = NULL;
1.67 martynas 114: resume = 0;
1.69 martynas 115: #endif /* !SMALL */
1.8 kstailey 116: mark = HASHBYTES;
1.17 millert 117: marg_sl = sl_init();
1.47 itojun 118: #ifdef INET6
119: epsv4 = 1;
120: #else
121: epsv4 = 0;
122: #endif
123: epsv4bad = 0;
1.1 deraadt 124:
1.37 millert 125: /* Set default operation mode based on FTPMODE environment variable */
1.51 millert 126: if ((cp = getenv("FTPMODE")) != NULL && *cp != '\0') {
1.37 millert 127: if (strcmp(cp, "passive") == 0) {
128: passivemode = 1;
129: activefallback = 0;
130: } else if (strcmp(cp, "active") == 0) {
131: passivemode = 0;
132: activefallback = 0;
133: } else if (strcmp(cp, "gate") == 0) {
134: gatemode = 1;
135: } else if (strcmp(cp, "auto") == 0) {
136: passivemode = 1;
137: activefallback = 1;
138: } else
139: warnx("unknown FTPMODE: %s. Using defaults", cp);
140: }
141:
142: if (strcmp(__progname, "gate-ftp") == 0)
1.36 millert 143: gatemode = 1;
144: gateserver = getenv("FTPSERVER");
145: if (gateserver == NULL || *gateserver == '\0')
146: gateserver = GATE_SERVER;
147: if (gatemode) {
148: if (*gateserver == '\0') {
149: warnx(
1.37 millert 150: "Neither $FTPSERVER nor $GATE_SERVER is defined; disabling gate-ftp");
1.36 millert 151: gatemode = 0;
152: }
153: }
1.17 millert 154:
1.31 millert 155: cp = getenv("TERM");
1.51 millert 156: dumb_terminal = (cp == NULL || *cp == '\0' || !strcmp(cp, "dumb") ||
1.31 millert 157: !strcmp(cp, "emacs") || !strcmp(cp, "su"));
1.17 millert 158: fromatty = isatty(fileno(stdin));
1.22 millert 159: if (fromatty) {
1.17 millert 160: verbose = 1; /* verbose if from a tty */
1.25 millert 161: #ifndef SMALL
1.28 millert 162: if (!dumb_terminal)
1.34 millert 163: editing = 1; /* editing mode on if tty is usable */
1.69 martynas 164: #endif /* !SMALL */
1.22 millert 165: }
1.30 deraadt 166:
167: ttyout = stdout;
1.33 millert 168: if (isatty(fileno(ttyout)) && !dumb_terminal && foregroundproc())
1.34 millert 169: progress = 1; /* progress bar on if tty is usable */
1.32 deraadt 170:
1.63 pyr 171: #ifndef SMALL
172: cookiefile = getenv("http_cookies");
1.69 martynas 173: #endif /* !SMALL */
1.63 pyr 174:
1.73 martynas 175: while ((ch = getopt(argc, argv, "46AaCc:dEegik:mno:pP:r:tvV")) != -1) {
1.1 deraadt 176: switch (ch) {
1.49 deraadt 177: case '4':
178: family = PF_INET;
179: break;
180: case '6':
181: family = PF_INET6;
182: break;
1.37 millert 183: case 'A':
184: activefallback = 0;
185: passivemode = 0;
186: break;
187:
1.17 millert 188: case 'a':
189: anonftp = 1;
190: break;
191:
1.67 martynas 192: case 'C':
193: #ifndef SMALL
194: resume = 1;
1.69 martynas 195: #endif /* !SMALL */
1.67 martynas 196: break;
197:
1.63 pyr 198: case 'c':
199: #ifndef SMALL
200: cookiefile = optarg;
1.69 martynas 201: #endif /* !SMALL */
1.63 pyr 202: break;
203:
1.1 deraadt 204: case 'd':
1.70 martynas 205: #ifndef SMALL
1.1 deraadt 206: options |= SO_DEBUG;
207: debug++;
1.70 martynas 208: #endif /* !SMALL */
1.1 deraadt 209: break;
1.17 millert 210:
1.59 fgsch 211: case 'E':
212: epsv4 = 0;
213: break;
214:
1.28 millert 215: case 'e':
216: #ifndef SMALL
1.22 millert 217: editing = 0;
1.69 martynas 218: #endif /* !SMALL */
1.21 kstailey 219: break;
220:
1.1 deraadt 221: case 'g':
222: doglob = 0;
223: break;
224:
225: case 'i':
226: interactive = 0;
1.41 millert 227: break;
228:
1.65 espie 229: case 'k':
230: keep_alive_timeout = strtonum(optarg, 0, INT_MAX,
231: &errstr);
232: if (errstr != NULL) {
233: warnx("keep alive amount is %s: %s", errstr,
234: optarg);
235: usage();
236: }
237: break;
1.41 millert 238: case 'm':
1.42 millert 239: progress = -1;
1.1 deraadt 240: break;
241:
242: case 'n':
243: autologin = 0;
244: break;
245:
1.38 millert 246: case 'o':
247: outfile = optarg;
248: if (strcmp(outfile, "-") == 0)
249: ttyout = stderr;
250: break;
251:
1.3 deraadt 252: case 'p':
1.17 millert 253: passivemode = 1;
1.37 millert 254: activefallback = 0;
1.3 deraadt 255: break;
256:
1.17 millert 257: case 'P':
1.44 itojun 258: ftpport = optarg;
1.7 mickey 259: break;
260:
1.18 millert 261: case 'r':
1.62 tedu 262: retry_connect = strtonum(optarg, 0, INT_MAX, &errstr);
1.65 espie 263: if (errstr != NULL) {
264: warnx("retry amount is %s: %s", errstr,
1.62 tedu 265: optarg);
1.65 espie 266: usage();
267: }
1.18 millert 268: break;
269:
1.1 deraadt 270: case 't':
1.17 millert 271: trace = 1;
1.1 deraadt 272: break;
273:
274: case 'v':
1.17 millert 275: verbose = 1;
276: break;
277:
278: case 'V':
279: verbose = 0;
1.1 deraadt 280: break;
281:
282: default:
1.17 millert 283: usage();
1.1 deraadt 284: }
285: }
286: argc -= optind;
287: argv += optind;
1.63 pyr 288:
289: #ifndef SMALL
290: cookie_load();
1.69 martynas 291: #endif /* !SMALL */
1.1 deraadt 292:
293: cpend = 0; /* no pending replies */
294: proxy = 0; /* proxy not active */
295: crflag = 1; /* strip c.r. on ascii gets */
296: sendport = -1; /* not using ports */
297: /*
298: * Set up the home directory in case we're globbing.
299: */
300: cp = getlogin();
301: if (cp != NULL) {
302: pw = getpwnam(cp);
303: }
304: if (pw == NULL)
305: pw = getpwuid(getuid());
306: if (pw != NULL) {
1.52 deraadt 307: (void)strlcpy(homedir, pw->pw_dir, sizeof homedir);
1.1 deraadt 308: home = homedir;
1.3 deraadt 309: }
1.9 michaels 310:
1.17 millert 311: setttywidth(0);
1.18 millert 312: (void)signal(SIGWINCH, setttywidth);
1.34 millert 313:
1.17 millert 314: if (argc > 0) {
1.44 itojun 315: if (isurl(argv[0])) {
1.17 millert 316: anonftp = 1; /* Handle "automatic" transfers. */
1.38 millert 317: rval = auto_fetch(argc, argv, outfile);
1.17 millert 318: if (rval >= 0) /* -1 == connected and cd-ed */
319: exit(rval);
320: } else {
1.3 deraadt 321: char *xargv[5];
322:
323: if (setjmp(toplevel))
324: exit(0);
1.20 millert 325: (void)signal(SIGINT, (sig_t)intr);
326: (void)signal(SIGPIPE, (sig_t)lostpeer);
1.3 deraadt 327: xargv[0] = __progname;
1.17 millert 328: xargv[1] = argv[0];
329: xargv[2] = argv[1];
330: xargv[3] = argv[2];
331: xargv[4] = NULL;
1.18 millert 332: do {
333: setpeer(argc+1, xargv);
334: if (!retry_connect)
335: break;
336: if (!connected) {
337: macnum = 0;
1.30 deraadt 338: fputs("Retrying...\n", ttyout);
1.18 millert 339: sleep(retry_connect);
340: }
341: } while (!connected);
1.35 mickey 342: retry_connect = 0; /* connected, stop hiding msgs */
1.3 deraadt 343: }
1.1 deraadt 344: }
1.28 millert 345: #ifndef SMALL
346: controlediting();
347: #endif /* !SMALL */
1.1 deraadt 348: top = setjmp(toplevel) == 0;
349: if (top) {
1.20 millert 350: (void)signal(SIGINT, (sig_t)intr);
351: (void)signal(SIGPIPE, (sig_t)lostpeer);
1.1 deraadt 352: }
353: for (;;) {
354: cmdscanner(top);
355: top = 1;
356: }
357: }
358:
359: void
1.58 deraadt 360: intr(void)
1.1 deraadt 361: {
362:
1.17 millert 363: alarmtimer(0);
1.1 deraadt 364: longjmp(toplevel, 1);
365: }
366:
367: void
1.58 deraadt 368: lostpeer(void)
1.1 deraadt 369: {
1.39 deraadt 370: int save_errno = errno;
1.1 deraadt 371:
1.17 millert 372: alarmtimer(0);
1.1 deraadt 373: if (connected) {
374: if (cout != NULL) {
1.66 moritz 375: (void)shutdown(fileno(cout), SHUT_RDWR);
1.18 millert 376: (void)fclose(cout);
1.1 deraadt 377: cout = NULL;
378: }
379: if (data >= 0) {
1.66 moritz 380: (void)shutdown(data, SHUT_RDWR);
1.18 millert 381: (void)close(data);
1.1 deraadt 382: data = -1;
383: }
384: connected = 0;
385: }
386: pswitch(1);
387: if (connected) {
388: if (cout != NULL) {
1.66 moritz 389: (void)shutdown(fileno(cout), SHUT_RDWR);
1.18 millert 390: (void)fclose(cout);
1.1 deraadt 391: cout = NULL;
392: }
393: connected = 0;
394: }
395: proxflag = 0;
396: pswitch(0);
1.39 deraadt 397: errno = save_errno;
1.1 deraadt 398: }
399:
400: /*
1.17 millert 401: * Generate a prompt
402: */
1.1 deraadt 403: char *
1.58 deraadt 404: prompt(void)
1.1 deraadt 405: {
1.17 millert 406: return ("ftp> ");
1.1 deraadt 407: }
408:
409: /*
410: * Command parser.
411: */
412: void
1.58 deraadt 413: cmdscanner(int top)
1.1 deraadt 414: {
415: struct cmd *c;
1.17 millert 416: int num;
1.55 otto 417: #ifndef SMALL
418: HistEvent hev;
1.69 martynas 419: #endif /* !SMALL */
1.1 deraadt 420:
1.17 millert 421: if (!top
1.25 millert 422: #ifndef SMALL
1.17 millert 423: && !editing
1.25 millert 424: #endif /* !SMALL */
1.17 millert 425: )
1.30 deraadt 426: (void)putc('\n', ttyout);
1.1 deraadt 427: for (;;) {
1.25 millert 428: #ifndef SMALL
1.17 millert 429: if (!editing) {
1.25 millert 430: #endif /* !SMALL */
1.17 millert 431: if (fromatty) {
1.30 deraadt 432: fputs(prompt(), ttyout);
433: (void)fflush(ttyout);
1.17 millert 434: }
435: if (fgets(line, sizeof(line), stdin) == NULL)
436: quit(0, 0);
437: num = strlen(line);
438: if (num == 0)
439: break;
440: if (line[--num] == '\n') {
441: if (num == 0)
442: break;
443: line[num] = '\0';
444: } else if (num == sizeof(line) - 2) {
1.30 deraadt 445: fputs("sorry, input line too long.\n", ttyout);
1.17 millert 446: while ((num = getchar()) != '\n' && num != EOF)
447: /* void */;
448: break;
449: } /* else it was a line without a newline */
1.25 millert 450: #ifndef SMALL
1.17 millert 451: } else {
452: const char *buf;
453: cursor_pos = NULL;
454:
455: if ((buf = el_gets(el, &num)) == NULL || num == 0)
456: quit(0, 0);
1.46 fgsch 457: if (buf[--num] == '\n') {
1.17 millert 458: if (num == 0)
459: break;
1.46 fgsch 460: }
461: if (num >= sizeof(line)) {
1.30 deraadt 462: fputs("sorry, input line too long.\n", ttyout);
1.1 deraadt 463: break;
1.17 millert 464: }
1.34 millert 465: memcpy(line, buf, (size_t)num);
1.17 millert 466: line[num] = '\0';
1.55 otto 467: history(hist, &hev, H_ENTER, buf);
1.17 millert 468: }
1.25 millert 469: #endif /* !SMALL */
1.17 millert 470:
1.1 deraadt 471: makeargv();
1.17 millert 472: if (margc == 0)
1.1 deraadt 473: continue;
474: c = getcmd(margv[0]);
475: if (c == (struct cmd *)-1) {
1.30 deraadt 476: fputs("?Ambiguous command.\n", ttyout);
1.1 deraadt 477: continue;
478: }
479: if (c == 0) {
1.25 millert 480: #ifndef SMALL
1.24 millert 481: /*
482: * Give editline(3) a shot at unknown commands.
483: * XXX - bogus commands with a colon in
484: * them will not elicit an error.
485: */
1.45 markus 486: if (editing &&
1.55 otto 487: el_parse(el, margc, (const char **)margv) != 0)
1.25 millert 488: #endif /* !SMALL */
1.30 deraadt 489: fputs("?Invalid command.\n", ttyout);
1.1 deraadt 490: continue;
491: }
492: if (c->c_conn && !connected) {
1.30 deraadt 493: fputs("Not connected.\n", ttyout);
1.1 deraadt 494: continue;
495: }
1.17 millert 496: confirmrest = 0;
1.1 deraadt 497: (*c->c_handler)(margc, margv);
498: if (bell && c->c_bell)
1.30 deraadt 499: (void)putc('\007', ttyout);
1.1 deraadt 500: if (c->c_handler != help)
501: break;
502: }
1.20 millert 503: (void)signal(SIGINT, (sig_t)intr);
504: (void)signal(SIGPIPE, (sig_t)lostpeer);
1.1 deraadt 505: }
506:
507: struct cmd *
1.58 deraadt 508: getcmd(const char *name)
1.1 deraadt 509: {
1.17 millert 510: const char *p, *q;
1.1 deraadt 511: struct cmd *c, *found;
512: int nmatches, longest;
1.2 deraadt 513:
514: if (name == NULL)
515: return (0);
1.1 deraadt 516:
517: longest = 0;
518: nmatches = 0;
519: found = 0;
1.17 millert 520: for (c = cmdtab; (p = c->c_name) != NULL; c++) {
1.1 deraadt 521: for (q = name; *q == *p++; q++)
522: if (*q == 0) /* exact match? */
523: return (c);
524: if (!*q) { /* the name was a prefix */
525: if (q - name > longest) {
526: longest = q - name;
527: nmatches = 1;
528: found = c;
529: } else if (q - name == longest)
530: nmatches++;
531: }
532: }
533: if (nmatches > 1)
534: return ((struct cmd *)-1);
535: return (found);
536: }
537:
538: /*
539: * Slice a string up into argc/argv.
540: */
541:
542: int slrflag;
543:
544: void
1.58 deraadt 545: makeargv(void)
1.1 deraadt 546: {
1.17 millert 547: char *argp;
1.1 deraadt 548:
549: stringbase = line; /* scan from first of buffer */
550: argbase = argbuf; /* store from first of buffer */
551: slrflag = 0;
1.17 millert 552: marg_sl->sl_cur = 0; /* reset to start of marg_sl */
1.1 deraadt 553: for (margc = 0; ; margc++) {
1.17 millert 554: argp = slurpstring();
555: sl_add(marg_sl, argp);
556: if (argp == NULL)
1.1 deraadt 557: break;
558: }
1.25 millert 559: #ifndef SMALL
1.17 millert 560: if (cursor_pos == line) {
561: cursor_argc = 0;
562: cursor_argo = 0;
563: } else if (cursor_pos != NULL) {
564: cursor_argc = margc;
565: cursor_argo = strlen(margv[margc-1]);
566: }
1.25 millert 567: #endif /* !SMALL */
1.17 millert 568: }
1.1 deraadt 569:
1.25 millert 570: #ifdef SMALL
1.17 millert 571: #define INC_CHKCURSOR(x) (x)++
1.69 martynas 572: #else /* SMALL */
1.17 millert 573: #define INC_CHKCURSOR(x) { (x)++ ; \
574: if (x == cursor_pos) { \
575: cursor_argc = margc; \
576: cursor_argo = ap-argbase; \
577: cursor_pos = NULL; \
578: } }
579:
1.69 martynas 580: #endif /* SMALL */
1.1 deraadt 581:
582: /*
583: * Parse string into argbuf;
584: * implemented with FSM to
585: * handle quoting and strings
586: */
587: char *
1.58 deraadt 588: slurpstring(void)
1.1 deraadt 589: {
590: int got_one = 0;
591: char *sb = stringbase;
592: char *ap = argbase;
593: char *tmp = argbase; /* will return this if token found */
594:
595: if (*sb == '!' || *sb == '$') { /* recognize ! as a token for shell */
596: switch (slrflag) { /* and $ as token for macro invoke */
597: case 0:
598: slrflag++;
1.17 millert 599: INC_CHKCURSOR(stringbase);
1.1 deraadt 600: return ((*sb == '!') ? "!" : "$");
601: /* NOTREACHED */
602: case 1:
603: slrflag++;
604: altarg = stringbase;
605: break;
606: default:
607: break;
608: }
609: }
610:
611: S0:
612: switch (*sb) {
613:
614: case '\0':
615: goto OUT;
616:
617: case ' ':
618: case '\t':
1.17 millert 619: INC_CHKCURSOR(sb);
620: goto S0;
1.1 deraadt 621:
622: default:
623: switch (slrflag) {
624: case 0:
625: slrflag++;
626: break;
627: case 1:
628: slrflag++;
629: altarg = sb;
630: break;
631: default:
632: break;
633: }
634: goto S1;
635: }
636:
637: S1:
638: switch (*sb) {
639:
640: case ' ':
641: case '\t':
642: case '\0':
643: goto OUT; /* end of token */
644:
645: case '\\':
1.17 millert 646: INC_CHKCURSOR(sb);
647: goto S2; /* slurp next character */
1.1 deraadt 648:
649: case '"':
1.17 millert 650: INC_CHKCURSOR(sb);
651: goto S3; /* slurp quoted string */
1.1 deraadt 652:
653: default:
1.17 millert 654: *ap = *sb; /* add character to token */
655: ap++;
656: INC_CHKCURSOR(sb);
1.1 deraadt 657: got_one = 1;
658: goto S1;
659: }
660:
661: S2:
662: switch (*sb) {
663:
664: case '\0':
665: goto OUT;
666:
667: default:
1.17 millert 668: *ap = *sb;
669: ap++;
670: INC_CHKCURSOR(sb);
1.1 deraadt 671: got_one = 1;
672: goto S1;
673: }
674:
675: S3:
676: switch (*sb) {
677:
678: case '\0':
679: goto OUT;
680:
681: case '"':
1.17 millert 682: INC_CHKCURSOR(sb);
683: goto S1;
1.1 deraadt 684:
685: default:
1.17 millert 686: *ap = *sb;
687: ap++;
688: INC_CHKCURSOR(sb);
1.1 deraadt 689: got_one = 1;
690: goto S3;
691: }
692:
693: OUT:
694: if (got_one)
695: *ap++ = '\0';
696: argbase = ap; /* update storage pointer */
697: stringbase = sb; /* update scan pointer */
698: if (got_one) {
699: return (tmp);
700: }
701: switch (slrflag) {
702: case 0:
703: slrflag++;
704: break;
705: case 1:
706: slrflag++;
707: altarg = (char *) 0;
708: break;
709: default:
710: break;
711: }
712: return ((char *)0);
713: }
714:
715: /*
716: * Help command.
717: * Call each command handler with argc == 0 and argv[0] == name.
718: */
719: void
1.58 deraadt 720: help(int argc, char *argv[])
1.1 deraadt 721: {
722: struct cmd *c;
723:
724: if (argc == 1) {
1.17 millert 725: StringList *buf;
1.1 deraadt 726:
1.17 millert 727: buf = sl_init();
1.30 deraadt 728: fprintf(ttyout, "%sommands may be abbreviated. Commands are:\n\n",
1.17 millert 729: proxy ? "Proxy c" : "C");
730: for (c = cmdtab; c < &cmdtab[NCMDS]; c++)
731: if (c->c_name && (!proxy || c->c_proxy))
732: sl_add(buf, c->c_name);
733: list_vertical(buf);
734: sl_free(buf, 0);
1.1 deraadt 735: return;
736: }
1.17 millert 737:
1.18 millert 738: #define HELPINDENT ((int) sizeof("disconnect"))
1.17 millert 739:
1.1 deraadt 740: while (--argc > 0) {
741: char *arg;
1.17 millert 742:
1.1 deraadt 743: arg = *++argv;
744: c = getcmd(arg);
745: if (c == (struct cmd *)-1)
1.30 deraadt 746: fprintf(ttyout, "?Ambiguous help command %s\n", arg);
1.1 deraadt 747: else if (c == (struct cmd *)0)
1.30 deraadt 748: fprintf(ttyout, "?Invalid help command %s\n", arg);
1.1 deraadt 749: else
1.30 deraadt 750: fprintf(ttyout, "%-*s\t%s\n", HELPINDENT,
1.1 deraadt 751: c->c_name, c->c_help);
752: }
1.17 millert 753: }
754:
755: void
1.58 deraadt 756: usage(void)
1.17 millert 757: {
758: (void)fprintf(stderr,
1.70 martynas 759: "usage: %s [-46Aa"
760: #ifndef SMALL
761: "d"
762: #endif /* !SMALL */
1.74 sobrado 763: "EegimnptVv] [-k seconds] [-P port] [-r seconds] [host [port]]\n"
1.70 martynas 764: " %s "
765: #ifndef SMALL
766: "[-C] "
767: #endif /* !SMALL */
768: "[-o output] "
1.68 jmc 769: "ftp://[user:password@]host[:port]/file[/]\n"
1.70 martynas 770: " %s "
771: #ifndef SMALL
772: "[-C] [-c cookie] "
773: #endif /* !SMALL */
774: "[-o output] "
1.68 jmc 775: "http://host[:port]/file\n"
1.61 deraadt 776: #ifndef SMALL
1.68 jmc 777: " %s [-C] [-c cookie] [-o output] "
778: "https://host[:port]/file\n"
1.69 martynas 779: #endif /* !SMALL */
1.70 martynas 780: " %s "
781: #ifndef SMALL
782: "[-C] "
783: #endif /* !SMALL */
1.71 sobrado 784: "[-o output] host:/file[/]\n",
1.61 deraadt 785: #ifndef SMALL
786: __progname, __progname, __progname, __progname, __progname);
1.69 martynas 787: #else /* !SMALL */
1.17 millert 788: __progname, __progname, __progname, __progname);
1.69 martynas 789: #endif /* !SMALL */
1.17 millert 790: exit(1);
1.1 deraadt 791: }
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