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1.100 ! tedu 1: /* $OpenBSD: main.c,v 1.99 2015/02/13 08:41:34 sthen 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");
205: tls_config_set_protocols(tls_config,
206: TLS_PROTOCOLS_ALL);
207: }
208:
1.69 martynas 209: #endif /* !SMALL */
1.88 lteo 210: httpuseragent = NULL;
1.63 pyr 211:
1.86 jca 212: while ((ch = getopt(argc, argv,
1.100 ! tedu 213: "46AaCc:dD:Eegik:Mmno:pP:r:S:s:tU:vV")) != -1) {
1.1 deraadt 214: switch (ch) {
1.49 deraadt 215: case '4':
216: family = PF_INET;
217: break;
218: case '6':
219: family = PF_INET6;
220: break;
1.37 millert 221: case 'A':
222: activefallback = 0;
223: passivemode = 0;
224: break;
225:
1.17 millert 226: case 'a':
227: anonftp = 1;
228: break;
229:
1.67 martynas 230: case 'C':
231: #ifndef SMALL
232: resume = 1;
1.69 martynas 233: #endif /* !SMALL */
1.67 martynas 234: break;
235:
1.63 pyr 236: case 'c':
237: #ifndef SMALL
238: cookiefile = optarg;
1.69 martynas 239: #endif /* !SMALL */
1.63 pyr 240: break;
241:
1.87 deraadt 242: case 'D':
243: action = optarg;
244: break;
1.1 deraadt 245: case 'd':
1.70 martynas 246: #ifndef SMALL
1.1 deraadt 247: options |= SO_DEBUG;
248: debug++;
1.70 martynas 249: #endif /* !SMALL */
1.1 deraadt 250: break;
1.17 millert 251:
1.59 fgsch 252: case 'E':
253: epsv4 = 0;
254: break;
255:
1.28 millert 256: case 'e':
257: #ifndef SMALL
1.22 millert 258: editing = 0;
1.69 martynas 259: #endif /* !SMALL */
1.21 kstailey 260: break;
261:
1.1 deraadt 262: case 'g':
263: doglob = 0;
264: break;
265:
266: case 'i':
267: interactive = 0;
1.41 millert 268: break;
269:
1.65 espie 270: case 'k':
271: keep_alive_timeout = strtonum(optarg, 0, INT_MAX,
272: &errstr);
273: if (errstr != NULL) {
274: warnx("keep alive amount is %s: %s", errstr,
275: optarg);
276: usage();
277: }
278: break;
1.100 ! tedu 279: case 'M':
! 280: progress = 0;
! 281: break;
1.41 millert 282: case 'm':
1.42 millert 283: progress = -1;
1.1 deraadt 284: break;
285:
286: case 'n':
287: autologin = 0;
288: break;
289:
1.38 millert 290: case 'o':
291: outfile = optarg;
1.81 halex 292: if (*outfile == '\0') {
293: pipeout = 0;
294: outfile = NULL;
295: ttyout = stdout;
296: } else {
297: pipeout = strcmp(outfile, "-") == 0;
298: ttyout = pipeout ? stderr : stdout;
299: }
1.38 millert 300: break;
301:
1.3 deraadt 302: case 'p':
1.17 millert 303: passivemode = 1;
1.37 millert 304: activefallback = 0;
1.3 deraadt 305: break;
306:
1.17 millert 307: case 'P':
1.44 itojun 308: ftpport = optarg;
1.7 mickey 309: break;
310:
1.18 millert 311: case 'r':
1.62 tedu 312: retry_connect = strtonum(optarg, 0, INT_MAX, &errstr);
1.65 espie 313: if (errstr != NULL) {
314: warnx("retry amount is %s: %s", errstr,
1.62 tedu 315: optarg);
1.65 espie 316: usage();
317: }
1.18 millert 318: break;
319:
1.86 jca 320: case 'S':
321: #ifndef SMALL
322: cp = optarg;
323: while (*cp) {
324: char *str;
325: switch (getsubopt(&cp, ssl_verify_opts, &str)) {
326: case SSL_CAFILE:
327: if (str == NULL)
328: errx(1, "missing CA file");
1.95 jsing 329: if (tls_config_set_ca_file(
330: tls_config, str) != 0)
331: errx(1, "tls ca file failed");
1.86 jca 332: break;
333: case SSL_CAPATH:
334: if (str == NULL)
335: errx(1, "missing CA directory"
336: " path");
1.95 jsing 337: if (tls_config_set_ca_path(
338: tls_config, str) != 0)
339: errx(1, "tls ca path failed");
1.86 jca 340: break;
341: case SSL_CIPHERS:
342: if (str == NULL)
343: errx(1, "missing cipher list");
1.95 jsing 344: if (tls_config_set_ciphers(
345: tls_config, str) != 0)
346: errx(1, "tls ciphers failed");
1.86 jca 347: break;
348: case SSL_DONTVERIFY:
1.95 jsing 349: tls_config_insecure_noverifyhost(
350: tls_config);
351: tls_config_insecure_noverifycert(
352: tls_config);
1.86 jca 353: break;
354: case SSL_DOVERIFY:
1.95 jsing 355: tls_config_verify(tls_config);
1.86 jca 356: break;
357: case SSL_VERIFYDEPTH:
358: if (str == NULL)
359: errx(1, "missing depth");
1.91 jsing 360: depth = strtonum(str, 0, INT_MAX,
361: &errstr);
1.86 jca 362: if (errstr)
363: errx(1, "certificate "
364: "validation depth is %s",
365: errstr);
1.95 jsing 366: tls_config_set_verify_depth(
367: tls_config, (int)depth);
1.86 jca 368: break;
369: default:
370: errx(1, "unknown -S suboption `%s'",
371: suboptarg ? suboptarg : "");
372: /* NOTREACHED */
373: }
374: }
375: #endif
376: break;
377:
1.82 haesbaer 378: case 's':
379: #ifndef SMALL
380: srcaddr = optarg;
381: #endif /* !SMALL */
382: break;
383:
1.1 deraadt 384: case 't':
1.17 millert 385: trace = 1;
1.1 deraadt 386: break;
387:
1.89 halex 388: #ifndef SMALL
1.88 lteo 389: case 'U':
1.89 halex 390: free (httpuseragent);
1.88 lteo 391: if (strcspn(optarg, "\r\n") != strlen(optarg))
392: errx(1, "Invalid User-Agent: %s.", optarg);
393: if (asprintf(&httpuseragent, "User-Agent: %s",
394: optarg) == -1)
395: errx(1, "Can't allocate memory for HTTP(S) "
396: "User-Agent");
1.89 halex 397: break;
1.88 lteo 398: #endif /* !SMALL */
399:
1.1 deraadt 400: case 'v':
1.17 millert 401: verbose = 1;
402: break;
403:
404: case 'V':
405: verbose = 0;
1.1 deraadt 406: break;
407:
408: default:
1.17 millert 409: usage();
1.1 deraadt 410: }
411: }
412: argc -= optind;
413: argv += optind;
1.63 pyr 414:
415: #ifndef SMALL
416: cookie_load();
1.69 martynas 417: #endif /* !SMALL */
1.89 halex 418: if (httpuseragent == NULL)
419: httpuseragent = HTTP_USER_AGENT;
1.1 deraadt 420:
421: cpend = 0; /* no pending replies */
422: proxy = 0; /* proxy not active */
423: crflag = 1; /* strip c.r. on ascii gets */
424: sendport = -1; /* not using ports */
425: /*
426: * Set up the home directory in case we're globbing.
427: */
428: cp = getlogin();
429: if (cp != NULL) {
430: pw = getpwnam(cp);
431: }
432: if (pw == NULL)
433: pw = getpwuid(getuid());
434: if (pw != NULL) {
1.52 deraadt 435: (void)strlcpy(homedir, pw->pw_dir, sizeof homedir);
1.1 deraadt 436: home = homedir;
1.3 deraadt 437: }
1.9 michaels 438:
1.17 millert 439: setttywidth(0);
1.18 millert 440: (void)signal(SIGWINCH, setttywidth);
1.34 millert 441:
1.17 millert 442: if (argc > 0) {
1.44 itojun 443: if (isurl(argv[0])) {
1.38 millert 444: rval = auto_fetch(argc, argv, outfile);
1.17 millert 445: if (rval >= 0) /* -1 == connected and cd-ed */
446: exit(rval);
447: } else {
1.77 martynas 448: #ifndef SMALL
1.3 deraadt 449: char *xargv[5];
450:
451: if (setjmp(toplevel))
452: exit(0);
1.20 millert 453: (void)signal(SIGINT, (sig_t)intr);
454: (void)signal(SIGPIPE, (sig_t)lostpeer);
1.3 deraadt 455: xargv[0] = __progname;
1.17 millert 456: xargv[1] = argv[0];
457: xargv[2] = argv[1];
458: xargv[3] = argv[2];
459: xargv[4] = NULL;
1.18 millert 460: do {
461: setpeer(argc+1, xargv);
462: if (!retry_connect)
463: break;
464: if (!connected) {
465: macnum = 0;
1.30 deraadt 466: fputs("Retrying...\n", ttyout);
1.18 millert 467: sleep(retry_connect);
468: }
469: } while (!connected);
1.35 mickey 470: retry_connect = 0; /* connected, stop hiding msgs */
1.77 martynas 471: #endif /* !SMALL */
1.3 deraadt 472: }
1.1 deraadt 473: }
1.28 millert 474: #ifndef SMALL
475: controlediting();
1.1 deraadt 476: top = setjmp(toplevel) == 0;
477: if (top) {
1.20 millert 478: (void)signal(SIGINT, (sig_t)intr);
479: (void)signal(SIGPIPE, (sig_t)lostpeer);
1.1 deraadt 480: }
481: for (;;) {
482: cmdscanner(top);
483: top = 1;
484: }
1.77 martynas 485: #else /* !SMALL */
486: usage();
487: #endif /* !SMALL */
1.1 deraadt 488: }
489:
490: void
1.58 deraadt 491: intr(void)
1.1 deraadt 492: {
1.90 deraadt 493: int save_errno = errno;
1.1 deraadt 494:
1.90 deraadt 495: write(fileno(ttyout), "\n\r", 2);
1.17 millert 496: alarmtimer(0);
1.90 deraadt 497:
498: errno = save_errno;
1.1 deraadt 499: longjmp(toplevel, 1);
500: }
501:
502: void
1.58 deraadt 503: lostpeer(void)
1.1 deraadt 504: {
1.39 deraadt 505: int save_errno = errno;
1.1 deraadt 506:
1.17 millert 507: alarmtimer(0);
1.1 deraadt 508: if (connected) {
509: if (cout != NULL) {
1.66 moritz 510: (void)shutdown(fileno(cout), SHUT_RDWR);
1.18 millert 511: (void)fclose(cout);
1.1 deraadt 512: cout = NULL;
513: }
514: if (data >= 0) {
1.66 moritz 515: (void)shutdown(data, SHUT_RDWR);
1.18 millert 516: (void)close(data);
1.1 deraadt 517: data = -1;
518: }
519: connected = 0;
520: }
521: pswitch(1);
522: if (connected) {
523: if (cout != NULL) {
1.66 moritz 524: (void)shutdown(fileno(cout), SHUT_RDWR);
1.18 millert 525: (void)fclose(cout);
1.1 deraadt 526: cout = NULL;
527: }
528: connected = 0;
529: }
530: proxflag = 0;
531: pswitch(0);
1.39 deraadt 532: errno = save_errno;
1.1 deraadt 533: }
534:
1.77 martynas 535: #ifndef SMALL
1.1 deraadt 536: /*
1.17 millert 537: * Generate a prompt
538: */
1.1 deraadt 539: char *
1.58 deraadt 540: prompt(void)
1.1 deraadt 541: {
1.17 millert 542: return ("ftp> ");
1.1 deraadt 543: }
544:
545: /*
546: * Command parser.
547: */
548: void
1.58 deraadt 549: cmdscanner(int top)
1.1 deraadt 550: {
551: struct cmd *c;
1.17 millert 552: int num;
1.55 otto 553: HistEvent hev;
1.1 deraadt 554:
1.77 martynas 555: if (!top && !editing)
1.30 deraadt 556: (void)putc('\n', ttyout);
1.1 deraadt 557: for (;;) {
1.17 millert 558: if (!editing) {
559: if (fromatty) {
1.30 deraadt 560: fputs(prompt(), ttyout);
561: (void)fflush(ttyout);
1.17 millert 562: }
563: if (fgets(line, sizeof(line), stdin) == NULL)
564: quit(0, 0);
565: num = strlen(line);
566: if (num == 0)
567: break;
568: if (line[--num] == '\n') {
569: if (num == 0)
570: break;
571: line[num] = '\0';
572: } else if (num == sizeof(line) - 2) {
1.30 deraadt 573: fputs("sorry, input line too long.\n", ttyout);
1.17 millert 574: while ((num = getchar()) != '\n' && num != EOF)
575: /* void */;
576: break;
577: } /* else it was a line without a newline */
578: } else {
579: const char *buf;
580: cursor_pos = NULL;
581:
1.90 deraadt 582: if ((buf = el_gets(el, &num)) == NULL || num == 0) {
583: putc('\n', ttyout);
584: fflush(ttyout);
1.17 millert 585: quit(0, 0);
1.90 deraadt 586: }
1.46 fgsch 587: if (buf[--num] == '\n') {
1.17 millert 588: if (num == 0)
589: break;
1.46 fgsch 590: }
591: if (num >= sizeof(line)) {
1.30 deraadt 592: fputs("sorry, input line too long.\n", ttyout);
1.1 deraadt 593: break;
1.17 millert 594: }
1.34 millert 595: memcpy(line, buf, (size_t)num);
1.17 millert 596: line[num] = '\0';
1.55 otto 597: history(hist, &hev, H_ENTER, buf);
1.17 millert 598: }
599:
1.1 deraadt 600: makeargv();
1.17 millert 601: if (margc == 0)
1.1 deraadt 602: continue;
603: c = getcmd(margv[0]);
604: if (c == (struct cmd *)-1) {
1.30 deraadt 605: fputs("?Ambiguous command.\n", ttyout);
1.1 deraadt 606: continue;
607: }
608: if (c == 0) {
1.24 millert 609: /*
610: * Give editline(3) a shot at unknown commands.
611: * XXX - bogus commands with a colon in
612: * them will not elicit an error.
613: */
1.45 markus 614: if (editing &&
1.55 otto 615: el_parse(el, margc, (const char **)margv) != 0)
1.30 deraadt 616: fputs("?Invalid command.\n", ttyout);
1.1 deraadt 617: continue;
618: }
619: if (c->c_conn && !connected) {
1.30 deraadt 620: fputs("Not connected.\n", ttyout);
1.1 deraadt 621: continue;
622: }
1.17 millert 623: confirmrest = 0;
1.1 deraadt 624: (*c->c_handler)(margc, margv);
625: if (bell && c->c_bell)
1.30 deraadt 626: (void)putc('\007', ttyout);
1.1 deraadt 627: if (c->c_handler != help)
628: break;
629: }
1.20 millert 630: (void)signal(SIGINT, (sig_t)intr);
631: (void)signal(SIGPIPE, (sig_t)lostpeer);
1.1 deraadt 632: }
633:
634: struct cmd *
1.58 deraadt 635: getcmd(const char *name)
1.1 deraadt 636: {
1.17 millert 637: const char *p, *q;
1.1 deraadt 638: struct cmd *c, *found;
639: int nmatches, longest;
1.2 deraadt 640:
641: if (name == NULL)
642: return (0);
1.1 deraadt 643:
644: longest = 0;
645: nmatches = 0;
646: found = 0;
1.17 millert 647: for (c = cmdtab; (p = c->c_name) != NULL; c++) {
1.1 deraadt 648: for (q = name; *q == *p++; q++)
649: if (*q == 0) /* exact match? */
650: return (c);
651: if (!*q) { /* the name was a prefix */
652: if (q - name > longest) {
653: longest = q - name;
654: nmatches = 1;
655: found = c;
656: } else if (q - name == longest)
657: nmatches++;
658: }
659: }
660: if (nmatches > 1)
661: return ((struct cmd *)-1);
662: return (found);
663: }
664:
665: /*
666: * Slice a string up into argc/argv.
667: */
668:
669: int slrflag;
670:
671: void
1.58 deraadt 672: makeargv(void)
1.1 deraadt 673: {
1.17 millert 674: char *argp;
1.1 deraadt 675:
676: stringbase = line; /* scan from first of buffer */
677: argbase = argbuf; /* store from first of buffer */
678: slrflag = 0;
1.17 millert 679: marg_sl->sl_cur = 0; /* reset to start of marg_sl */
1.1 deraadt 680: for (margc = 0; ; margc++) {
1.17 millert 681: argp = slurpstring();
682: sl_add(marg_sl, argp);
683: if (argp == NULL)
1.1 deraadt 684: break;
685: }
1.17 millert 686: if (cursor_pos == line) {
687: cursor_argc = 0;
688: cursor_argo = 0;
689: } else if (cursor_pos != NULL) {
690: cursor_argc = margc;
691: cursor_argo = strlen(margv[margc-1]);
692: }
693: }
1.1 deraadt 694:
1.17 millert 695: #define INC_CHKCURSOR(x) { (x)++ ; \
696: if (x == cursor_pos) { \
697: cursor_argc = margc; \
698: cursor_argo = ap-argbase; \
699: cursor_pos = NULL; \
700: } }
1.1 deraadt 701:
702: /*
703: * Parse string into argbuf;
704: * implemented with FSM to
705: * handle quoting and strings
706: */
707: char *
1.58 deraadt 708: slurpstring(void)
1.1 deraadt 709: {
710: int got_one = 0;
711: char *sb = stringbase;
712: char *ap = argbase;
713: char *tmp = argbase; /* will return this if token found */
714:
715: if (*sb == '!' || *sb == '$') { /* recognize ! as a token for shell */
716: switch (slrflag) { /* and $ as token for macro invoke */
717: case 0:
718: slrflag++;
1.17 millert 719: INC_CHKCURSOR(stringbase);
1.1 deraadt 720: return ((*sb == '!') ? "!" : "$");
721: /* NOTREACHED */
722: case 1:
723: slrflag++;
724: altarg = stringbase;
725: break;
726: default:
727: break;
728: }
729: }
730:
731: S0:
732: switch (*sb) {
733:
734: case '\0':
735: goto OUT;
736:
737: case ' ':
738: case '\t':
1.17 millert 739: INC_CHKCURSOR(sb);
740: goto S0;
1.1 deraadt 741:
742: default:
743: switch (slrflag) {
744: case 0:
745: slrflag++;
746: break;
747: case 1:
748: slrflag++;
749: altarg = sb;
750: break;
751: default:
752: break;
753: }
754: goto S1;
755: }
756:
757: S1:
758: switch (*sb) {
759:
760: case ' ':
761: case '\t':
762: case '\0':
763: goto OUT; /* end of token */
764:
765: case '\\':
1.17 millert 766: INC_CHKCURSOR(sb);
767: goto S2; /* slurp next character */
1.1 deraadt 768:
769: case '"':
1.17 millert 770: INC_CHKCURSOR(sb);
771: goto S3; /* slurp quoted string */
1.1 deraadt 772:
773: default:
1.17 millert 774: *ap = *sb; /* add character to token */
775: ap++;
776: INC_CHKCURSOR(sb);
1.1 deraadt 777: got_one = 1;
778: goto S1;
779: }
780:
781: S2:
782: switch (*sb) {
783:
784: case '\0':
785: goto OUT;
786:
787: default:
1.17 millert 788: *ap = *sb;
789: ap++;
790: INC_CHKCURSOR(sb);
1.1 deraadt 791: got_one = 1;
792: goto S1;
793: }
794:
795: S3:
796: switch (*sb) {
797:
798: case '\0':
799: goto OUT;
800:
801: case '"':
1.17 millert 802: INC_CHKCURSOR(sb);
803: goto S1;
1.1 deraadt 804:
805: default:
1.17 millert 806: *ap = *sb;
807: ap++;
808: INC_CHKCURSOR(sb);
1.1 deraadt 809: got_one = 1;
810: goto S3;
811: }
812:
813: OUT:
814: if (got_one)
815: *ap++ = '\0';
816: argbase = ap; /* update storage pointer */
817: stringbase = sb; /* update scan pointer */
818: if (got_one) {
819: return (tmp);
820: }
821: switch (slrflag) {
822: case 0:
823: slrflag++;
824: break;
825: case 1:
826: slrflag++;
827: altarg = (char *) 0;
828: break;
829: default:
830: break;
831: }
832: return ((char *)0);
833: }
834:
835: /*
836: * Help command.
837: * Call each command handler with argc == 0 and argv[0] == name.
838: */
839: void
1.58 deraadt 840: help(int argc, char *argv[])
1.1 deraadt 841: {
842: struct cmd *c;
843:
844: if (argc == 1) {
1.17 millert 845: StringList *buf;
1.1 deraadt 846:
1.17 millert 847: buf = sl_init();
1.30 deraadt 848: fprintf(ttyout, "%sommands may be abbreviated. Commands are:\n\n",
1.17 millert 849: proxy ? "Proxy c" : "C");
850: for (c = cmdtab; c < &cmdtab[NCMDS]; c++)
851: if (c->c_name && (!proxy || c->c_proxy))
852: sl_add(buf, c->c_name);
853: list_vertical(buf);
854: sl_free(buf, 0);
1.1 deraadt 855: return;
856: }
1.17 millert 857:
1.18 millert 858: #define HELPINDENT ((int) sizeof("disconnect"))
1.17 millert 859:
1.1 deraadt 860: while (--argc > 0) {
861: char *arg;
1.17 millert 862:
1.1 deraadt 863: arg = *++argv;
864: c = getcmd(arg);
865: if (c == (struct cmd *)-1)
1.30 deraadt 866: fprintf(ttyout, "?Ambiguous help command %s\n", arg);
1.1 deraadt 867: else if (c == (struct cmd *)0)
1.30 deraadt 868: fprintf(ttyout, "?Invalid help command %s\n", arg);
1.1 deraadt 869: else
1.30 deraadt 870: fprintf(ttyout, "%-*s\t%s\n", HELPINDENT,
1.1 deraadt 871: c->c_name, c->c_help);
872: }
1.17 millert 873: }
1.77 martynas 874: #endif /* !SMALL */
1.17 millert 875:
876: void
1.58 deraadt 877: usage(void)
1.17 millert 878: {
1.92 lteo 879: fprintf(stderr, "usage: "
1.70 martynas 880: #ifndef SMALL
1.100 ! tedu 881: "%1$s [-46AadEegiMmnptVv] [-D title] [-k seconds] [-P port] "
1.87 deraadt 882: "[-r seconds]\n"
883: " [-s srcaddr] [host [port]]\n"
1.92 lteo 884: " %1$s [-C] [-o output] [-s srcaddr]\n"
885: " ftp://[user:password@]host[:port]/file[/] ...\n"
886: " %1$s [-C] [-c cookie] [-o output] [-S ssl_options] "
1.84 haesbaer 887: "[-s srcaddr]\n"
1.88 lteo 888: " [-U useragent] "
1.92 lteo 889: "http[s]://[user:password@]host[:port]/file ...\n"
890: " %1$s [-C] [-o output] [-s srcaddr] file:file ...\n"
891: " %1$s [-C] [-o output] [-s srcaddr] host:/file[/] ...\n",
1.69 martynas 892: #else /* !SMALL */
1.92 lteo 893: "%1$s [-o output] ftp://[user:password@]host[:port]/file[/] ...\n"
894: " %1$s [-o output] http://host[:port]/file ...\n"
895: " %1$s [-o output] file:file ...\n"
896: " %1$s [-o output] host:/file[/] ...\n",
1.69 martynas 897: #endif /* !SMALL */
1.92 lteo 898: __progname);
1.17 millert 899: exit(1);
1.1 deraadt 900: }