Annotation of src/usr.bin/ftp/main.c, Revision 1.95
1.95 ! jsing 1: /* $OpenBSD: main.c,v 1.94 2014/10/03 14:15:41 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>
1.86 jca 70: #include <limits.h>
1.1 deraadt 71: #include <netdb.h>
72: #include <pwd.h>
73: #include <stdio.h>
1.39 deraadt 74: #include <errno.h>
1.18 millert 75: #include <stdlib.h>
1.1 deraadt 76: #include <string.h>
77: #include <unistd.h>
78:
1.95 ! jsing 79: #include <tls.h>
1.91 jsing 80:
81: #include "cmds.h"
1.1 deraadt 82: #include "ftp_var.h"
83:
1.86 jca 84: #ifndef SMALL
85: char * const ssl_verify_opts[] = {
86: #define SSL_CAFILE 0
87: "cafile",
88: #define SSL_CAPATH 1
89: "capath",
90: #define SSL_CIPHERS 2
91: "ciphers",
92: #define SSL_DONTVERIFY 3
93: "dont",
94: #define SSL_DOVERIFY 4
95: "do",
96: #define SSL_VERIFYDEPTH 5
97: "depth",
98: NULL
99: };
1.91 jsing 100:
1.95 ! jsing 101: struct tls_config *tls_config;
1.86 jca 102: #endif /* !SMALL */
103:
1.49 deraadt 104: int family = PF_UNSPEC;
1.81 halex 105: int pipeout;
1.49 deraadt 106:
1.1 deraadt 107: int
1.54 deraadt 108: main(volatile int argc, char *argv[])
1.1 deraadt 109: {
1.34 millert 110: int ch, top, rval;
1.1 deraadt 111: struct passwd *pw = NULL;
1.44 itojun 112: char *cp, homedir[MAXPATHLEN];
1.38 millert 113: char *outfile = NULL;
1.62 tedu 114: const char *errstr;
1.28 millert 115: int dumb_terminal = 0;
1.91 jsing 116: #ifndef SMALL
117: long long depth;
118: #endif
1.1 deraadt 119:
1.44 itojun 120: ftpport = "ftp";
121: httpport = "http";
1.61 deraadt 122: #ifndef SMALL
123: httpsport = "https";
1.69 martynas 124: #endif /* !SMALL */
1.44 itojun 125: gateport = getenv("FTPSERVERPORT");
1.51 millert 126: if (gateport == NULL || *gateport == '\0')
1.44 itojun 127: gateport = "ftpgate";
1.1 deraadt 128: doglob = 1;
129: interactive = 1;
130: autologin = 1;
1.37 millert 131: passivemode = 1;
132: activefallback = 1;
1.17 millert 133: preserve = 1;
134: verbose = 0;
135: progress = 0;
1.36 millert 136: gatemode = 0;
1.25 millert 137: #ifndef SMALL
1.22 millert 138: editing = 0;
1.28 millert 139: el = NULL;
140: hist = NULL;
1.63 pyr 141: cookiefile = NULL;
1.67 martynas 142: resume = 0;
1.82 haesbaer 143: srcaddr = NULL;
1.77 martynas 144: marg_sl = sl_init();
1.69 martynas 145: #endif /* !SMALL */
1.8 kstailey 146: mark = HASHBYTES;
1.47 itojun 147: #ifdef INET6
148: epsv4 = 1;
149: #else
150: epsv4 = 0;
151: #endif
152: epsv4bad = 0;
1.1 deraadt 153:
1.37 millert 154: /* Set default operation mode based on FTPMODE environment variable */
1.51 millert 155: if ((cp = getenv("FTPMODE")) != NULL && *cp != '\0') {
1.37 millert 156: if (strcmp(cp, "passive") == 0) {
157: passivemode = 1;
158: activefallback = 0;
159: } else if (strcmp(cp, "active") == 0) {
160: passivemode = 0;
161: activefallback = 0;
162: } else if (strcmp(cp, "gate") == 0) {
163: gatemode = 1;
164: } else if (strcmp(cp, "auto") == 0) {
165: passivemode = 1;
166: activefallback = 1;
167: } else
168: warnx("unknown FTPMODE: %s. Using defaults", cp);
169: }
170:
171: if (strcmp(__progname, "gate-ftp") == 0)
1.36 millert 172: gatemode = 1;
173: gateserver = getenv("FTPSERVER");
174: if (gateserver == NULL || *gateserver == '\0')
175: gateserver = GATE_SERVER;
176: if (gatemode) {
177: if (*gateserver == '\0') {
178: warnx(
1.37 millert 179: "Neither $FTPSERVER nor $GATE_SERVER is defined; disabling gate-ftp");
1.36 millert 180: gatemode = 0;
181: }
182: }
1.17 millert 183:
1.31 millert 184: cp = getenv("TERM");
1.51 millert 185: dumb_terminal = (cp == NULL || *cp == '\0' || !strcmp(cp, "dumb") ||
1.31 millert 186: !strcmp(cp, "emacs") || !strcmp(cp, "su"));
1.17 millert 187: fromatty = isatty(fileno(stdin));
1.22 millert 188: if (fromatty) {
1.17 millert 189: verbose = 1; /* verbose if from a tty */
1.25 millert 190: #ifndef SMALL
1.28 millert 191: if (!dumb_terminal)
1.34 millert 192: editing = 1; /* editing mode on if tty is usable */
1.69 martynas 193: #endif /* !SMALL */
1.22 millert 194: }
1.30 deraadt 195:
196: ttyout = stdout;
1.33 millert 197: if (isatty(fileno(ttyout)) && !dumb_terminal && foregroundproc())
1.34 millert 198: progress = 1; /* progress bar on if tty is usable */
1.32 deraadt 199:
1.63 pyr 200: #ifndef SMALL
201: cookiefile = getenv("http_cookies");
1.69 martynas 202: #endif /* !SMALL */
1.88 lteo 203: httpuseragent = NULL;
1.63 pyr 204:
1.86 jca 205: while ((ch = getopt(argc, argv,
1.88 lteo 206: "46AaCc:dD:Eegik:mno:pP:r:S:s:tU:vV")) != -1) {
1.1 deraadt 207: switch (ch) {
1.49 deraadt 208: case '4':
209: family = PF_INET;
210: break;
211: case '6':
212: family = PF_INET6;
213: break;
1.37 millert 214: case 'A':
215: activefallback = 0;
216: passivemode = 0;
217: break;
218:
1.17 millert 219: case 'a':
220: anonftp = 1;
221: break;
222:
1.67 martynas 223: case 'C':
224: #ifndef SMALL
225: resume = 1;
1.69 martynas 226: #endif /* !SMALL */
1.67 martynas 227: break;
228:
1.63 pyr 229: case 'c':
230: #ifndef SMALL
231: cookiefile = optarg;
1.69 martynas 232: #endif /* !SMALL */
1.63 pyr 233: break;
234:
1.87 deraadt 235: case 'D':
236: action = optarg;
237: break;
1.1 deraadt 238: case 'd':
1.70 martynas 239: #ifndef SMALL
1.1 deraadt 240: options |= SO_DEBUG;
241: debug++;
1.70 martynas 242: #endif /* !SMALL */
1.1 deraadt 243: break;
1.17 millert 244:
1.59 fgsch 245: case 'E':
246: epsv4 = 0;
247: break;
248:
1.28 millert 249: case 'e':
250: #ifndef SMALL
1.22 millert 251: editing = 0;
1.69 martynas 252: #endif /* !SMALL */
1.21 kstailey 253: break;
254:
1.1 deraadt 255: case 'g':
256: doglob = 0;
257: break;
258:
259: case 'i':
260: interactive = 0;
1.41 millert 261: break;
262:
1.65 espie 263: case 'k':
264: keep_alive_timeout = strtonum(optarg, 0, INT_MAX,
265: &errstr);
266: if (errstr != NULL) {
267: warnx("keep alive amount is %s: %s", errstr,
268: optarg);
269: usage();
270: }
271: break;
1.41 millert 272: case 'm':
1.42 millert 273: progress = -1;
1.1 deraadt 274: break;
275:
276: case 'n':
277: autologin = 0;
278: break;
279:
1.38 millert 280: case 'o':
281: outfile = optarg;
1.81 halex 282: if (*outfile == '\0') {
283: pipeout = 0;
284: outfile = NULL;
285: ttyout = stdout;
286: } else {
287: pipeout = strcmp(outfile, "-") == 0;
288: ttyout = pipeout ? stderr : stdout;
289: }
1.38 millert 290: break;
291:
1.3 deraadt 292: case 'p':
1.17 millert 293: passivemode = 1;
1.37 millert 294: activefallback = 0;
1.3 deraadt 295: break;
296:
1.17 millert 297: case 'P':
1.44 itojun 298: ftpport = optarg;
1.7 mickey 299: break;
300:
1.18 millert 301: case 'r':
1.62 tedu 302: retry_connect = strtonum(optarg, 0, INT_MAX, &errstr);
1.65 espie 303: if (errstr != NULL) {
304: warnx("retry amount is %s: %s", errstr,
1.62 tedu 305: optarg);
1.65 espie 306: usage();
307: }
1.18 millert 308: break;
309:
1.86 jca 310: case 'S':
311: #ifndef SMALL
1.95 ! jsing 312: if (tls_config == NULL) {
! 313: tls_config = tls_config_new();
! 314: if (tls_config == NULL)
! 315: errx(1, "tls config failed");
1.91 jsing 316: }
317:
1.86 jca 318: cp = optarg;
319: while (*cp) {
320: char *str;
321: switch (getsubopt(&cp, ssl_verify_opts, &str)) {
322: case SSL_CAFILE:
323: if (str == NULL)
324: errx(1, "missing CA file");
1.95 ! jsing 325: if (tls_config_set_ca_file(
! 326: tls_config, str) != 0)
! 327: errx(1, "tls ca file failed");
1.86 jca 328: break;
329: case SSL_CAPATH:
330: if (str == NULL)
331: errx(1, "missing CA directory"
332: " path");
1.95 ! jsing 333: if (tls_config_set_ca_path(
! 334: tls_config, str) != 0)
! 335: errx(1, "tls ca path failed");
1.86 jca 336: break;
337: case SSL_CIPHERS:
338: if (str == NULL)
339: errx(1, "missing cipher list");
1.95 ! jsing 340: if (tls_config_set_ciphers(
! 341: tls_config, str) != 0)
! 342: errx(1, "tls ciphers failed");
1.86 jca 343: break;
344: case SSL_DONTVERIFY:
1.95 ! jsing 345: tls_config_insecure_noverifyhost(
! 346: tls_config);
! 347: tls_config_insecure_noverifycert(
! 348: tls_config);
1.86 jca 349: break;
350: case SSL_DOVERIFY:
1.95 ! jsing 351: tls_config_verify(tls_config);
1.86 jca 352: break;
353: case SSL_VERIFYDEPTH:
354: if (str == NULL)
355: errx(1, "missing depth");
1.91 jsing 356: depth = strtonum(str, 0, INT_MAX,
357: &errstr);
1.86 jca 358: if (errstr)
359: errx(1, "certificate "
360: "validation depth is %s",
361: errstr);
1.95 ! jsing 362: tls_config_set_verify_depth(
! 363: tls_config, (int)depth);
1.86 jca 364: break;
365: default:
366: errx(1, "unknown -S suboption `%s'",
367: suboptarg ? suboptarg : "");
368: /* NOTREACHED */
369: }
370: }
371: #endif
372: break;
373:
1.82 haesbaer 374: case 's':
375: #ifndef SMALL
376: srcaddr = optarg;
377: #endif /* !SMALL */
378: break;
379:
1.1 deraadt 380: case 't':
1.17 millert 381: trace = 1;
1.1 deraadt 382: break;
383:
1.89 halex 384: #ifndef SMALL
1.88 lteo 385: case 'U':
1.89 halex 386: free (httpuseragent);
1.88 lteo 387: if (strcspn(optarg, "\r\n") != strlen(optarg))
388: errx(1, "Invalid User-Agent: %s.", optarg);
389: if (asprintf(&httpuseragent, "User-Agent: %s",
390: optarg) == -1)
391: errx(1, "Can't allocate memory for HTTP(S) "
392: "User-Agent");
1.89 halex 393: break;
1.88 lteo 394: #endif /* !SMALL */
395:
1.1 deraadt 396: case 'v':
1.17 millert 397: verbose = 1;
398: break;
399:
400: case 'V':
401: verbose = 0;
1.1 deraadt 402: break;
403:
404: default:
1.17 millert 405: usage();
1.1 deraadt 406: }
407: }
408: argc -= optind;
409: argv += optind;
1.63 pyr 410:
411: #ifndef SMALL
412: cookie_load();
1.69 martynas 413: #endif /* !SMALL */
1.89 halex 414: if (httpuseragent == NULL)
415: httpuseragent = HTTP_USER_AGENT;
1.1 deraadt 416:
417: cpend = 0; /* no pending replies */
418: proxy = 0; /* proxy not active */
419: crflag = 1; /* strip c.r. on ascii gets */
420: sendport = -1; /* not using ports */
421: /*
422: * Set up the home directory in case we're globbing.
423: */
424: cp = getlogin();
425: if (cp != NULL) {
426: pw = getpwnam(cp);
427: }
428: if (pw == NULL)
429: pw = getpwuid(getuid());
430: if (pw != NULL) {
1.52 deraadt 431: (void)strlcpy(homedir, pw->pw_dir, sizeof homedir);
1.1 deraadt 432: home = homedir;
1.3 deraadt 433: }
1.9 michaels 434:
1.17 millert 435: setttywidth(0);
1.18 millert 436: (void)signal(SIGWINCH, setttywidth);
1.34 millert 437:
1.17 millert 438: if (argc > 0) {
1.44 itojun 439: if (isurl(argv[0])) {
1.38 millert 440: rval = auto_fetch(argc, argv, outfile);
1.17 millert 441: if (rval >= 0) /* -1 == connected and cd-ed */
442: exit(rval);
443: } else {
1.77 martynas 444: #ifndef SMALL
1.3 deraadt 445: char *xargv[5];
446:
447: if (setjmp(toplevel))
448: exit(0);
1.20 millert 449: (void)signal(SIGINT, (sig_t)intr);
450: (void)signal(SIGPIPE, (sig_t)lostpeer);
1.3 deraadt 451: xargv[0] = __progname;
1.17 millert 452: xargv[1] = argv[0];
453: xargv[2] = argv[1];
454: xargv[3] = argv[2];
455: xargv[4] = NULL;
1.18 millert 456: do {
457: setpeer(argc+1, xargv);
458: if (!retry_connect)
459: break;
460: if (!connected) {
461: macnum = 0;
1.30 deraadt 462: fputs("Retrying...\n", ttyout);
1.18 millert 463: sleep(retry_connect);
464: }
465: } while (!connected);
1.35 mickey 466: retry_connect = 0; /* connected, stop hiding msgs */
1.77 martynas 467: #endif /* !SMALL */
1.3 deraadt 468: }
1.1 deraadt 469: }
1.28 millert 470: #ifndef SMALL
471: controlediting();
1.1 deraadt 472: top = setjmp(toplevel) == 0;
473: if (top) {
1.20 millert 474: (void)signal(SIGINT, (sig_t)intr);
475: (void)signal(SIGPIPE, (sig_t)lostpeer);
1.1 deraadt 476: }
477: for (;;) {
478: cmdscanner(top);
479: top = 1;
480: }
1.77 martynas 481: #else /* !SMALL */
482: usage();
483: #endif /* !SMALL */
1.1 deraadt 484: }
485:
486: void
1.58 deraadt 487: intr(void)
1.1 deraadt 488: {
1.90 deraadt 489: int save_errno = errno;
1.1 deraadt 490:
1.90 deraadt 491: write(fileno(ttyout), "\n\r", 2);
1.17 millert 492: alarmtimer(0);
1.90 deraadt 493:
494: errno = save_errno;
1.1 deraadt 495: longjmp(toplevel, 1);
496: }
497:
498: void
1.58 deraadt 499: lostpeer(void)
1.1 deraadt 500: {
1.39 deraadt 501: int save_errno = errno;
1.1 deraadt 502:
1.17 millert 503: alarmtimer(0);
1.1 deraadt 504: if (connected) {
505: if (cout != NULL) {
1.66 moritz 506: (void)shutdown(fileno(cout), SHUT_RDWR);
1.18 millert 507: (void)fclose(cout);
1.1 deraadt 508: cout = NULL;
509: }
510: if (data >= 0) {
1.66 moritz 511: (void)shutdown(data, SHUT_RDWR);
1.18 millert 512: (void)close(data);
1.1 deraadt 513: data = -1;
514: }
515: connected = 0;
516: }
517: pswitch(1);
518: if (connected) {
519: if (cout != NULL) {
1.66 moritz 520: (void)shutdown(fileno(cout), SHUT_RDWR);
1.18 millert 521: (void)fclose(cout);
1.1 deraadt 522: cout = NULL;
523: }
524: connected = 0;
525: }
526: proxflag = 0;
527: pswitch(0);
1.39 deraadt 528: errno = save_errno;
1.1 deraadt 529: }
530:
1.77 martynas 531: #ifndef SMALL
1.1 deraadt 532: /*
1.17 millert 533: * Generate a prompt
534: */
1.1 deraadt 535: char *
1.58 deraadt 536: prompt(void)
1.1 deraadt 537: {
1.17 millert 538: return ("ftp> ");
1.1 deraadt 539: }
540:
541: /*
542: * Command parser.
543: */
544: void
1.58 deraadt 545: cmdscanner(int top)
1.1 deraadt 546: {
547: struct cmd *c;
1.17 millert 548: int num;
1.55 otto 549: HistEvent hev;
1.1 deraadt 550:
1.77 martynas 551: if (!top && !editing)
1.30 deraadt 552: (void)putc('\n', ttyout);
1.1 deraadt 553: for (;;) {
1.17 millert 554: if (!editing) {
555: if (fromatty) {
1.30 deraadt 556: fputs(prompt(), ttyout);
557: (void)fflush(ttyout);
1.17 millert 558: }
559: if (fgets(line, sizeof(line), stdin) == NULL)
560: quit(0, 0);
561: num = strlen(line);
562: if (num == 0)
563: break;
564: if (line[--num] == '\n') {
565: if (num == 0)
566: break;
567: line[num] = '\0';
568: } else if (num == sizeof(line) - 2) {
1.30 deraadt 569: fputs("sorry, input line too long.\n", ttyout);
1.17 millert 570: while ((num = getchar()) != '\n' && num != EOF)
571: /* void */;
572: break;
573: } /* else it was a line without a newline */
574: } else {
575: const char *buf;
576: cursor_pos = NULL;
577:
1.90 deraadt 578: if ((buf = el_gets(el, &num)) == NULL || num == 0) {
579: putc('\n', ttyout);
580: fflush(ttyout);
1.17 millert 581: quit(0, 0);
1.90 deraadt 582: }
1.46 fgsch 583: if (buf[--num] == '\n') {
1.17 millert 584: if (num == 0)
585: break;
1.46 fgsch 586: }
587: if (num >= sizeof(line)) {
1.30 deraadt 588: fputs("sorry, input line too long.\n", ttyout);
1.1 deraadt 589: break;
1.17 millert 590: }
1.34 millert 591: memcpy(line, buf, (size_t)num);
1.17 millert 592: line[num] = '\0';
1.55 otto 593: history(hist, &hev, H_ENTER, buf);
1.17 millert 594: }
595:
1.1 deraadt 596: makeargv();
1.17 millert 597: if (margc == 0)
1.1 deraadt 598: continue;
599: c = getcmd(margv[0]);
600: if (c == (struct cmd *)-1) {
1.30 deraadt 601: fputs("?Ambiguous command.\n", ttyout);
1.1 deraadt 602: continue;
603: }
604: if (c == 0) {
1.24 millert 605: /*
606: * Give editline(3) a shot at unknown commands.
607: * XXX - bogus commands with a colon in
608: * them will not elicit an error.
609: */
1.45 markus 610: if (editing &&
1.55 otto 611: el_parse(el, margc, (const char **)margv) != 0)
1.30 deraadt 612: fputs("?Invalid command.\n", ttyout);
1.1 deraadt 613: continue;
614: }
615: if (c->c_conn && !connected) {
1.30 deraadt 616: fputs("Not connected.\n", ttyout);
1.1 deraadt 617: continue;
618: }
1.17 millert 619: confirmrest = 0;
1.1 deraadt 620: (*c->c_handler)(margc, margv);
621: if (bell && c->c_bell)
1.30 deraadt 622: (void)putc('\007', ttyout);
1.1 deraadt 623: if (c->c_handler != help)
624: break;
625: }
1.20 millert 626: (void)signal(SIGINT, (sig_t)intr);
627: (void)signal(SIGPIPE, (sig_t)lostpeer);
1.1 deraadt 628: }
629:
630: struct cmd *
1.58 deraadt 631: getcmd(const char *name)
1.1 deraadt 632: {
1.17 millert 633: const char *p, *q;
1.1 deraadt 634: struct cmd *c, *found;
635: int nmatches, longest;
1.2 deraadt 636:
637: if (name == NULL)
638: return (0);
1.1 deraadt 639:
640: longest = 0;
641: nmatches = 0;
642: found = 0;
1.17 millert 643: for (c = cmdtab; (p = c->c_name) != NULL; c++) {
1.1 deraadt 644: for (q = name; *q == *p++; q++)
645: if (*q == 0) /* exact match? */
646: return (c);
647: if (!*q) { /* the name was a prefix */
648: if (q - name > longest) {
649: longest = q - name;
650: nmatches = 1;
651: found = c;
652: } else if (q - name == longest)
653: nmatches++;
654: }
655: }
656: if (nmatches > 1)
657: return ((struct cmd *)-1);
658: return (found);
659: }
660:
661: /*
662: * Slice a string up into argc/argv.
663: */
664:
665: int slrflag;
666:
667: void
1.58 deraadt 668: makeargv(void)
1.1 deraadt 669: {
1.17 millert 670: char *argp;
1.1 deraadt 671:
672: stringbase = line; /* scan from first of buffer */
673: argbase = argbuf; /* store from first of buffer */
674: slrflag = 0;
1.17 millert 675: marg_sl->sl_cur = 0; /* reset to start of marg_sl */
1.1 deraadt 676: for (margc = 0; ; margc++) {
1.17 millert 677: argp = slurpstring();
678: sl_add(marg_sl, argp);
679: if (argp == NULL)
1.1 deraadt 680: break;
681: }
1.17 millert 682: if (cursor_pos == line) {
683: cursor_argc = 0;
684: cursor_argo = 0;
685: } else if (cursor_pos != NULL) {
686: cursor_argc = margc;
687: cursor_argo = strlen(margv[margc-1]);
688: }
689: }
1.1 deraadt 690:
1.17 millert 691: #define INC_CHKCURSOR(x) { (x)++ ; \
692: if (x == cursor_pos) { \
693: cursor_argc = margc; \
694: cursor_argo = ap-argbase; \
695: cursor_pos = NULL; \
696: } }
1.1 deraadt 697:
698: /*
699: * Parse string into argbuf;
700: * implemented with FSM to
701: * handle quoting and strings
702: */
703: char *
1.58 deraadt 704: slurpstring(void)
1.1 deraadt 705: {
706: int got_one = 0;
707: char *sb = stringbase;
708: char *ap = argbase;
709: char *tmp = argbase; /* will return this if token found */
710:
711: if (*sb == '!' || *sb == '$') { /* recognize ! as a token for shell */
712: switch (slrflag) { /* and $ as token for macro invoke */
713: case 0:
714: slrflag++;
1.17 millert 715: INC_CHKCURSOR(stringbase);
1.1 deraadt 716: return ((*sb == '!') ? "!" : "$");
717: /* NOTREACHED */
718: case 1:
719: slrflag++;
720: altarg = stringbase;
721: break;
722: default:
723: break;
724: }
725: }
726:
727: S0:
728: switch (*sb) {
729:
730: case '\0':
731: goto OUT;
732:
733: case ' ':
734: case '\t':
1.17 millert 735: INC_CHKCURSOR(sb);
736: goto S0;
1.1 deraadt 737:
738: default:
739: switch (slrflag) {
740: case 0:
741: slrflag++;
742: break;
743: case 1:
744: slrflag++;
745: altarg = sb;
746: break;
747: default:
748: break;
749: }
750: goto S1;
751: }
752:
753: S1:
754: switch (*sb) {
755:
756: case ' ':
757: case '\t':
758: case '\0':
759: goto OUT; /* end of token */
760:
761: case '\\':
1.17 millert 762: INC_CHKCURSOR(sb);
763: goto S2; /* slurp next character */
1.1 deraadt 764:
765: case '"':
1.17 millert 766: INC_CHKCURSOR(sb);
767: goto S3; /* slurp quoted string */
1.1 deraadt 768:
769: default:
1.17 millert 770: *ap = *sb; /* add character to token */
771: ap++;
772: INC_CHKCURSOR(sb);
1.1 deraadt 773: got_one = 1;
774: goto S1;
775: }
776:
777: S2:
778: switch (*sb) {
779:
780: case '\0':
781: goto OUT;
782:
783: default:
1.17 millert 784: *ap = *sb;
785: ap++;
786: INC_CHKCURSOR(sb);
1.1 deraadt 787: got_one = 1;
788: goto S1;
789: }
790:
791: S3:
792: switch (*sb) {
793:
794: case '\0':
795: goto OUT;
796:
797: case '"':
1.17 millert 798: INC_CHKCURSOR(sb);
799: goto S1;
1.1 deraadt 800:
801: default:
1.17 millert 802: *ap = *sb;
803: ap++;
804: INC_CHKCURSOR(sb);
1.1 deraadt 805: got_one = 1;
806: goto S3;
807: }
808:
809: OUT:
810: if (got_one)
811: *ap++ = '\0';
812: argbase = ap; /* update storage pointer */
813: stringbase = sb; /* update scan pointer */
814: if (got_one) {
815: return (tmp);
816: }
817: switch (slrflag) {
818: case 0:
819: slrflag++;
820: break;
821: case 1:
822: slrflag++;
823: altarg = (char *) 0;
824: break;
825: default:
826: break;
827: }
828: return ((char *)0);
829: }
830:
831: /*
832: * Help command.
833: * Call each command handler with argc == 0 and argv[0] == name.
834: */
835: void
1.58 deraadt 836: help(int argc, char *argv[])
1.1 deraadt 837: {
838: struct cmd *c;
839:
840: if (argc == 1) {
1.17 millert 841: StringList *buf;
1.1 deraadt 842:
1.17 millert 843: buf = sl_init();
1.30 deraadt 844: fprintf(ttyout, "%sommands may be abbreviated. Commands are:\n\n",
1.17 millert 845: proxy ? "Proxy c" : "C");
846: for (c = cmdtab; c < &cmdtab[NCMDS]; c++)
847: if (c->c_name && (!proxy || c->c_proxy))
848: sl_add(buf, c->c_name);
849: list_vertical(buf);
850: sl_free(buf, 0);
1.1 deraadt 851: return;
852: }
1.17 millert 853:
1.18 millert 854: #define HELPINDENT ((int) sizeof("disconnect"))
1.17 millert 855:
1.1 deraadt 856: while (--argc > 0) {
857: char *arg;
1.17 millert 858:
1.1 deraadt 859: arg = *++argv;
860: c = getcmd(arg);
861: if (c == (struct cmd *)-1)
1.30 deraadt 862: fprintf(ttyout, "?Ambiguous help command %s\n", arg);
1.1 deraadt 863: else if (c == (struct cmd *)0)
1.30 deraadt 864: fprintf(ttyout, "?Invalid help command %s\n", arg);
1.1 deraadt 865: else
1.30 deraadt 866: fprintf(ttyout, "%-*s\t%s\n", HELPINDENT,
1.1 deraadt 867: c->c_name, c->c_help);
868: }
1.17 millert 869: }
1.77 martynas 870: #endif /* !SMALL */
1.17 millert 871:
872: void
1.58 deraadt 873: usage(void)
1.17 millert 874: {
1.92 lteo 875: fprintf(stderr, "usage: "
1.70 martynas 876: #ifndef SMALL
1.92 lteo 877: "%1$s [-46AadEegimnptVv] [-D title] [-k seconds] [-P port] "
1.87 deraadt 878: "[-r seconds]\n"
879: " [-s srcaddr] [host [port]]\n"
1.92 lteo 880: " %1$s [-C] [-o output] [-s srcaddr]\n"
881: " ftp://[user:password@]host[:port]/file[/] ...\n"
882: " %1$s [-C] [-c cookie] [-o output] [-S ssl_options] "
1.84 haesbaer 883: "[-s srcaddr]\n"
1.88 lteo 884: " [-U useragent] "
1.92 lteo 885: "http[s]://[user:password@]host[:port]/file ...\n"
886: " %1$s [-C] [-o output] [-s srcaddr] file:file ...\n"
887: " %1$s [-C] [-o output] [-s srcaddr] host:/file[/] ...\n",
1.69 martynas 888: #else /* !SMALL */
1.92 lteo 889: "%1$s [-o output] ftp://[user:password@]host[:port]/file[/] ...\n"
890: " %1$s [-o output] http://host[:port]/file ...\n"
891: " %1$s [-o output] file:file ...\n"
892: " %1$s [-o output] host:/file[/] ...\n",
1.69 martynas 893: #endif /* !SMALL */
1.92 lteo 894: __progname);
1.17 millert 895: exit(1);
1.1 deraadt 896: }
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