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1.138 ! kn 1: /* $OpenBSD: main.c,v 1.137 2021/02/02 21:41:12 jmc Exp $ */
1.129 florian 2: /* $NetBSD: main.c,v 1.24 1997/08/18 10:20:26 lukem Exp $ */
1.122 jasper 3:
1.1 deraadt 4: /*
1.129 florian 5: * Copyright (C) 1997 and 1998 WIDE Project.
6: * All rights reserved.
1.118 krw 7: *
1.129 florian 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.
1.118 krw 19: *
1.129 florian 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.
1.44 itojun 31: */
32:
1.129 florian 33: /*
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. Neither the name of the University nor the names of its contributors
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: */
1.1 deraadt 65: #include <sys/types.h>
66: #include <sys/socket.h>
67:
1.129 florian 68: #include <ctype.h>
1.1 deraadt 69: #include <err.h>
1.120 jsing 70: #include <fcntl.h>
1.129 florian 71: #include <netdb.h>
72: #include <pwd.h>
1.1 deraadt 73: #include <stdio.h>
1.129 florian 74: #include <errno.h>
1.18 millert 75: #include <stdlib.h>
1.1 deraadt 76: #include <string.h>
77: #include <unistd.h>
78:
1.129 florian 79: #include <tls.h>
1.91 jsing 80:
1.129 florian 81: #include "cmds.h"
82: #include "ftp_var.h"
1.132 jca 83:
84: int trace;
85: int hash;
86: int mark;
87: int sendport;
88: int verbose;
89: int connected;
90: int fromatty;
91: int interactive;
92: #ifndef SMALL
93: int confirmrest;
94: int debug;
95: int bell;
96: char *altarg;
97: #endif /* !SMALL */
98: int doglob;
99: int autologin;
100: int proxy;
101: int proxflag;
102: int gatemode;
103: char *gateserver;
104: int sunique;
105: int runique;
106: int mcase;
107: int ntflag;
108: int mapflag;
109: int preserve;
110: int progress;
111: int code;
112: int crflag;
113: char pasv[BUFSIZ];
114: int passivemode;
115: int activefallback;
116: char ntin[17];
117: char ntout[17];
118: char mapin[PATH_MAX];
119: char mapout[PATH_MAX];
120: char typename[32];
121: int type;
122: int curtype;
123: char structname[32];
124: int stru;
125: char formname[32];
126: int form;
127: char modename[32];
128: int mode;
129: char bytename[32];
130: int bytesize;
131: int anonftp;
132: int dirchange;
133: unsigned int retry_connect;
134: int ttywidth;
135: int epsv4;
136: int epsv4bad;
137:
138: #ifndef SMALL
139: int editing;
140: EditLine *el;
141: History *hist;
142: char *cursor_pos;
143: size_t cursor_argc;
144: size_t cursor_argo;
145: int resume;
146: char *srcaddr;
1.136 robert 147: int timestamp;
1.132 jca 148: #endif /* !SMALL */
149:
150: char *cookiefile;
151:
152: off_t bytes;
153: off_t filesize;
154: char *direction;
155:
156: char *hostname;
157: int unix_server;
158: int unix_proxy;
159:
160: char *ftpport;
161: char *httpport;
162: #ifndef NOSSL
163: char *httpsport;
164: #endif /* !SMALL */
165: char *httpuseragent;
166: char *gateport;
167:
168: jmp_buf toplevel;
169:
170: #ifndef SMALL
171: char line[FTPBUFLEN];
172: char *argbase;
173: char *stringbase;
174: char argbuf[FTPBUFLEN];
175: StringList *marg_sl;
176: int margc;
177: int options;
178: #endif /* !SMALL */
179:
180: int cpend;
181: int mflag;
182:
183: #ifndef SMALL
184: int macnum;
185: struct macel macros[16];
186: char macbuf[4096];
187: #endif /* !SMALL */
188:
189: FILE *ttyout;
1.129 florian 190:
191: int connect_timeout;
192:
1.136 robert 193: #ifndef SMALL
194: /* enable using server timestamps by default */
195: int server_timestamps = 1;
196: #endif
197:
1.129 florian 198: #ifndef NOSSL
199: char * const ssl_verify_opts[] = {
200: #define SSL_CAFILE 0
201: "cafile",
202: #define SSL_CAPATH 1
203: "capath",
204: #define SSL_CIPHERS 2
205: "ciphers",
206: #define SSL_DONTVERIFY 3
207: "dont",
208: #define SSL_DOVERIFY 4
209: "do",
210: #define SSL_VERIFYDEPTH 5
211: "depth",
212: #define SSL_MUSTSTAPLE 6
213: "muststaple",
214: #define SSL_NOVERIFYTIME 7
215: "noverifytime",
216: #define SSL_SESSION 8
217: "session",
1.133 tb 218: #define SSL_PROTOCOLS 9
219: "protocols",
1.129 florian 220: NULL
221: };
222:
223: struct tls_config *tls_config;
224: int tls_session_fd = -1;
225:
226: static void
227: process_ssl_options(char *cp)
228: {
229: const char *errstr;
230: char *str;
1.134 tb 231: int depth;
1.133 tb 232: uint32_t protocols;
1.129 florian 233:
234: while (*cp) {
235: switch (getsubopt(&cp, ssl_verify_opts, &str)) {
236: case SSL_CAFILE:
237: if (str == NULL)
238: errx(1, "missing CA file");
239: if (tls_config_set_ca_file(tls_config, str) != 0)
240: errx(1, "tls ca file failed: %s",
241: tls_config_error(tls_config));
242: break;
243: case SSL_CAPATH:
244: if (str == NULL)
245: errx(1, "missing CA directory path");
246: if (tls_config_set_ca_path(tls_config, str) != 0)
247: errx(1, "tls ca path failed: %s",
248: tls_config_error(tls_config));
249: break;
250: case SSL_CIPHERS:
251: if (str == NULL)
252: errx(1, "missing cipher list");
253: if (tls_config_set_ciphers(tls_config, str) != 0)
254: errx(1, "tls ciphers failed: %s",
255: tls_config_error(tls_config));
256: break;
257: case SSL_DONTVERIFY:
258: tls_config_insecure_noverifycert(tls_config);
259: tls_config_insecure_noverifyname(tls_config);
260: break;
261: case SSL_DOVERIFY:
262: tls_config_verify(tls_config);
263: break;
264: case SSL_VERIFYDEPTH:
265: if (str == NULL)
266: errx(1, "missing depth");
267: depth = strtonum(str, 0, INT_MAX, &errstr);
268: if (errstr)
269: errx(1, "certificate validation depth is %s",
270: errstr);
1.134 tb 271: tls_config_set_verify_depth(tls_config, depth);
1.129 florian 272: break;
273: case SSL_MUSTSTAPLE:
274: tls_config_ocsp_require_stapling(tls_config);
275: break;
276: case SSL_NOVERIFYTIME:
277: tls_config_insecure_noverifytime(tls_config);
278: break;
279: case SSL_SESSION:
280: if (str == NULL)
281: errx(1, "missing session file");
282: if ((tls_session_fd = open(str, O_RDWR|O_CREAT,
283: 0600)) == -1)
284: err(1, "failed to open or create session file "
285: "'%s'", str);
286: if (tls_config_set_session_fd(tls_config,
287: tls_session_fd) == -1)
288: errx(1, "failed to set session: %s",
289: tls_config_error(tls_config));
1.133 tb 290: break;
291: case SSL_PROTOCOLS:
292: if (str == NULL)
293: errx(1, "missing protocol name");
294: if (tls_config_parse_protocols(&protocols, str) != 0)
295: errx(1, "failed to parse TLS protocols");
296: if (tls_config_set_protocols(tls_config, protocols) != 0)
1.135 tb 297: errx(1, "failed to set TLS protocols: %s",
298: tls_config_error(tls_config));
1.129 florian 299: break;
300: default:
301: errx(1, "unknown -S suboption `%s'",
302: suboptarg ? suboptarg : "");
303: /* NOTREACHED */
304: }
305: }
306: }
307: #endif /* !NOSSL */
308:
309: int family = PF_UNSPEC;
310: int pipeout;
1.49 deraadt 311:
1.1 deraadt 312: int
1.129 florian 313: main(volatile int argc, char *argv[])
1.1 deraadt 314: {
1.129 florian 315: int ch, rval;
316: #ifndef SMALL
317: int top;
318: #endif
319: struct passwd *pw = NULL;
320: char *cp, homedir[PATH_MAX];
321: char *outfile = NULL;
322: const char *errstr;
323: int dumb_terminal = 0;
324:
325: ftpport = "ftp";
326: httpport = "http";
327: #ifndef NOSSL
328: httpsport = "https";
329: #endif /* !NOSSL */
330: gateport = getenv("FTPSERVERPORT");
331: if (gateport == NULL || *gateport == '\0')
332: gateport = "ftpgate";
333: doglob = 1;
334: interactive = 1;
335: autologin = 1;
336: passivemode = 1;
337: activefallback = 1;
338: preserve = 1;
339: verbose = 0;
340: progress = 0;
341: gatemode = 0;
342: #ifndef NOSSL
343: cookiefile = NULL;
344: #endif /* NOSSL */
345: #ifndef SMALL
346: editing = 0;
347: el = NULL;
348: hist = NULL;
349: resume = 0;
1.136 robert 350: timestamp = 0;
1.129 florian 351: srcaddr = NULL;
352: marg_sl = sl_init();
353: #endif /* !SMALL */
354: mark = HASHBYTES;
355: epsv4 = 1;
356: epsv4bad = 0;
357:
358: /* Set default operation mode based on FTPMODE environment variable */
359: if ((cp = getenv("FTPMODE")) != NULL && *cp != '\0') {
360: if (strcmp(cp, "passive") == 0) {
361: passivemode = 1;
362: activefallback = 0;
363: } else if (strcmp(cp, "active") == 0) {
364: passivemode = 0;
365: activefallback = 0;
366: } else if (strcmp(cp, "gate") == 0) {
367: gatemode = 1;
368: } else if (strcmp(cp, "auto") == 0) {
369: passivemode = 1;
370: activefallback = 1;
371: } else
372: warnx("unknown FTPMODE: %s. Using defaults", cp);
373: }
374:
375: if (strcmp(__progname, "gate-ftp") == 0)
376: gatemode = 1;
377: gateserver = getenv("FTPSERVER");
378: if (gateserver == NULL)
379: gateserver = "";
380: if (gatemode) {
381: if (*gateserver == '\0') {
382: warnx(
383: "Neither $FTPSERVER nor $GATE_SERVER is defined; disabling gate-ftp");
384: gatemode = 0;
385: }
386: }
387:
388: cp = getenv("TERM");
389: dumb_terminal = (cp == NULL || *cp == '\0' || !strcmp(cp, "dumb") ||
390: !strcmp(cp, "emacs") || !strcmp(cp, "su"));
391: fromatty = isatty(fileno(stdin));
392: if (fromatty) {
393: verbose = 1; /* verbose if from a tty */
394: #ifndef SMALL
395: if (!dumb_terminal)
396: editing = 1; /* editing mode on if tty is usable */
397: #endif /* !SMALL */
398: }
399:
400: ttyout = stdout;
401: if (isatty(fileno(ttyout)) && !dumb_terminal && foregroundproc())
402: progress = 1; /* progress bar on if tty is usable */
403:
404: #ifndef NOSSL
405: cookiefile = getenv("http_cookies");
406: if (tls_config == NULL) {
407: tls_config = tls_config_new();
408: if (tls_config == NULL)
409: errx(1, "tls config failed");
410: if (tls_config_set_protocols(tls_config,
411: TLS_PROTOCOLS_ALL) != 0)
412: errx(1, "tls set protocols failed: %s",
413: tls_config_error(tls_config));
414: if (tls_config_set_ciphers(tls_config, "legacy") != 0)
415: errx(1, "tls set ciphers failed: %s",
416: tls_config_error(tls_config));
417: }
418: #endif /* !NOSSL */
419:
420: httpuseragent = NULL;
421:
1.86 jca 422: while ((ch = getopt(argc, argv,
1.136 robert 423: "46AaCc:dD:EeN:gik:Mmno:pP:r:S:s:TtU:uvVw:")) != -1) {
1.1 deraadt 424: switch (ch) {
1.49 deraadt 425: case '4':
1.129 florian 426: family = PF_INET;
1.49 deraadt 427: break;
428: case '6':
1.129 florian 429: family = PF_INET6;
1.49 deraadt 430: break;
1.37 millert 431: case 'A':
1.129 florian 432: activefallback = 0;
433: passivemode = 0;
434: break;
435:
1.130 deraadt 436: case 'N':
437: setprogname(optarg);
438: break;
1.129 florian 439: case 'a':
440: anonftp = 1;
1.37 millert 441: break;
1.129 florian 442:
1.67 martynas 443: case 'C':
1.129 florian 444: #ifndef SMALL
1.67 martynas 445: resume = 1;
1.129 florian 446: #endif /* !SMALL */
1.63 pyr 447: break;
1.129 florian 448:
449: case 'c':
450: #ifndef SMALL
451: cookiefile = optarg;
452: #endif /* !SMALL */
453: break;
454:
1.87 deraadt 455: case 'D':
1.129 florian 456: action = optarg;
457: break;
458: case 'd':
459: #ifndef SMALL
460: options |= SO_DEBUG;
461: debug++;
462: #endif /* !SMALL */
463: break;
464:
465: case 'E':
466: epsv4 = 0;
467: break;
468:
469: case 'e':
470: #ifndef SMALL
471: editing = 0;
472: #endif /* !SMALL */
473: break;
474:
475: case 'g':
476: doglob = 0;
477: break;
478:
479: case 'i':
480: interactive = 0;
1.87 deraadt 481: break;
1.129 florian 482:
483: case 'k':
484: keep_alive_timeout = strtonum(optarg, 0, INT_MAX,
485: &errstr);
486: if (errstr != NULL) {
487: warnx("keep alive amount is %s: %s", errstr,
488: optarg);
489: usage();
490: }
1.1 deraadt 491: break;
1.121 kmos 492: case 'M':
1.129 florian 493: progress = 0;
1.59 fgsch 494: break;
1.121 kmos 495: case 'm':
1.129 florian 496: progress = -1;
1.21 kstailey 497: break;
1.129 florian 498:
499: case 'n':
500: autologin = 0;
501: break;
502:
503: case 'o':
504: outfile = optarg;
505: if (*outfile == '\0') {
506: pipeout = 0;
507: outfile = NULL;
508: ttyout = stdout;
509: } else {
510: pipeout = strcmp(outfile, "-") == 0;
511: ttyout = pipeout ? stderr : stdout;
512: }
513: break;
514:
515: case 'p':
516: passivemode = 1;
517: activefallback = 0;
518: break;
519:
520: case 'P':
521: ftpport = optarg;
522: break;
523:
524: case 'r':
525: retry_connect = strtonum(optarg, 0, INT_MAX, &errstr);
526: if (errstr != NULL) {
527: warnx("retry amount is %s: %s", errstr,
528: optarg);
529: usage();
530: }
531: break;
532:
1.121 kmos 533: case 'S':
1.129 florian 534: #ifndef NOSSL
535: process_ssl_options(optarg);
536: #endif /* !NOSSL */
537: break;
538:
539: case 's':
540: #ifndef SMALL
541: srcaddr = optarg;
542: #endif /* !SMALL */
543: break;
544:
1.136 robert 545: #ifndef SMALL
546: case 'T':
547: timestamp = 1;
548: break;
549: #endif /* !SMALL */
1.129 florian 550: case 't':
551: trace = 1;
1.1 deraadt 552: break;
1.129 florian 553:
554: #ifndef SMALL
1.121 kmos 555: case 'U':
1.129 florian 556: free (httpuseragent);
557: if (strcspn(optarg, "\r\n") != strlen(optarg))
558: errx(1, "Invalid User-Agent: %s.", optarg);
559: if (asprintf(&httpuseragent, "User-Agent: %s",
560: optarg) == -1)
561: errx(1, "Can't allocate memory for HTTP(S) "
562: "User-Agent");
1.136 robert 563: break;
564: case 'u':
565: server_timestamps = 0;
1.129 florian 566: break;
567: #endif /* !SMALL */
568:
569: case 'v':
570: verbose = 1;
1.41 millert 571: break;
1.129 florian 572:
1.121 kmos 573: case 'V':
574: verbose = 0;
1.65 espie 575: break;
1.129 florian 576:
1.121 kmos 577: case 'w':
1.129 florian 578: connect_timeout = strtonum(optarg, 0, 200, &errstr);
579: if (errstr)
580: errx(1, "-w: %s", errstr);
1.116 deraadt 581: break;
1.1 deraadt 582: default:
1.17 millert 583: usage();
1.1 deraadt 584: }
585: }
586: argc -= optind;
587: argv += optind;
1.63 pyr 588:
1.129 florian 589: #ifndef NOSSL
590: cookie_load();
591: #endif /* !NOSSL */
592: if (httpuseragent == NULL)
593: httpuseragent = HTTP_USER_AGENT;
594:
595: cpend = 0; /* no pending replies */
596: proxy = 0; /* proxy not active */
597: crflag = 1; /* strip c.r. on ascii gets */
598: sendport = -1; /* not using ports */
599: /*
600: * Set up the home directory in case we're globbing.
601: */
602: cp = getlogin();
603: if (cp != NULL) {
604: pw = getpwnam(cp);
605: }
606: if (pw == NULL)
607: pw = getpwuid(getuid());
608: if (pw != NULL) {
609: (void)strlcpy(homedir, pw->pw_dir, sizeof homedir);
610: home = homedir;
611: }
612:
613: setttywidth(0);
614: (void)signal(SIGWINCH, setttywidth);
1.9 michaels 615:
1.129 florian 616: if (argc > 0) {
617: if (isurl(argv[0])) {
618: if (pipeout) {
619: #ifndef SMALL
620: if (pledge("stdio rpath dns tty inet proc exec fattr",
621: NULL) == -1)
622: err(1, "pledge");
623: #else
624: if (pledge("stdio rpath dns tty inet fattr",
625: NULL) == -1)
626: err(1, "pledge");
627: #endif
628: } else {
1.103 doug 629: #ifndef SMALL
1.129 florian 630: if (pledge("stdio rpath wpath cpath dns tty inet proc exec fattr",
631: NULL) == -1)
632: err(1, "pledge");
633: #else
634: if (pledge("stdio rpath wpath cpath dns tty inet fattr",
635: NULL) == -1)
636: err(1, "pledge");
637: #endif
638: }
1.103 doug 639:
1.129 florian 640: rval = auto_fetch(argc, argv, outfile);
641: if (rval >= 0) /* -1 == connected and cd-ed */
642: exit(rval);
643: } else {
644: #ifndef SMALL
645: char *xargv[5];
1.3 deraadt 646:
1.129 florian 647: if (setjmp(toplevel))
648: exit(0);
649: (void)signal(SIGINT, (sig_t)intr);
650: (void)signal(SIGPIPE, (sig_t)lostpeer);
651: xargv[0] = __progname;
652: xargv[1] = argv[0];
653: xargv[2] = argv[1];
654: xargv[3] = argv[2];
655: xargv[4] = NULL;
656: do {
657: setpeer(argc+1, xargv);
658: if (!retry_connect)
659: break;
660: if (!connected) {
661: macnum = 0;
662: fputs("Retrying...\n", ttyout);
663: sleep(retry_connect);
664: }
665: } while (!connected);
666: retry_connect = 0; /* connected, stop hiding msgs */
667: #endif /* !SMALL */
1.3 deraadt 668: }
1.1 deraadt 669: }
1.129 florian 670: #ifndef SMALL
671: controlediting();
672: top = setjmp(toplevel) == 0;
673: if (top) {
674: (void)signal(SIGINT, (sig_t)intr);
675: (void)signal(SIGPIPE, (sig_t)lostpeer);
676: }
677: for (;;) {
678: cmdscanner(top);
679: top = 1;
680: }
681: #else /* !SMALL */
682: usage();
683: #endif /* !SMALL */
684: }
685:
686: void
687: intr(void)
688: {
689: int save_errno = errno;
690:
691: write(fileno(ttyout), "\n\r", 2);
692: alarmtimer(0);
1.121 kmos 693:
1.129 florian 694: errno = save_errno;
695: longjmp(toplevel, 1);
1.1 deraadt 696: }
697:
1.129 florian 698: void
699: lostpeer(void)
1.1 deraadt 700: {
1.129 florian 701: int save_errno = errno;
1.121 kmos 702:
1.129 florian 703: alarmtimer(0);
704: if (connected) {
705: if (cout != NULL) {
706: (void)shutdown(fileno(cout), SHUT_RDWR);
707: (void)fclose(cout);
708: cout = NULL;
709: }
710: if (data >= 0) {
711: (void)shutdown(data, SHUT_RDWR);
712: (void)close(data);
713: data = -1;
714: }
715: connected = 0;
716: }
717: pswitch(1);
718: if (connected) {
719: if (cout != NULL) {
720: (void)shutdown(fileno(cout), SHUT_RDWR);
721: (void)fclose(cout);
722: cout = NULL;
723: }
724: connected = 0;
1.121 kmos 725: }
1.129 florian 726: proxflag = 0;
727: pswitch(0);
728: errno = save_errno;
729: }
1.90 deraadt 730:
1.129 florian 731: #ifndef SMALL
732: /*
733: * Generate a prompt
734: */
735: char *
736: prompt(void)
737: {
738: return ("ftp> ");
1.1 deraadt 739: }
740:
1.129 florian 741: /*
742: * Command parser.
743: */
744: void
745: cmdscanner(int top)
1.1 deraadt 746: {
1.129 florian 747: struct cmd *c;
748: int num;
749: HistEvent hev;
1.1 deraadt 750:
1.129 florian 751: if (!top && !editing)
752: (void)putc('\n', ttyout);
753: for (;;) {
754: if (!editing) {
755: if (fromatty) {
756: fputs(prompt(), ttyout);
757: (void)fflush(ttyout);
758: }
759: if (fgets(line, sizeof(line), stdin) == NULL)
760: quit(0, 0);
761: num = strlen(line);
762: if (num == 0)
763: break;
764: if (line[--num] == '\n') {
765: if (num == 0)
766: break;
767: line[num] = '\0';
768: } else if (num == sizeof(line) - 2) {
769: fputs("sorry, input line too long.\n", ttyout);
770: while ((num = getchar()) != '\n' && num != EOF)
771: /* void */;
772: break;
773: } /* else it was a line without a newline */
774: } else {
775: const char *buf;
776: cursor_pos = NULL;
777:
778: if ((buf = el_gets(el, &num)) == NULL || num == 0) {
779: putc('\n', ttyout);
780: fflush(ttyout);
781: quit(0, 0);
782: }
783: if (buf[--num] == '\n') {
784: if (num == 0)
785: break;
786: }
787: if (num >= sizeof(line)) {
788: fputs("sorry, input line too long.\n", ttyout);
789: break;
790: }
791: memcpy(line, buf, (size_t)num);
792: line[num] = '\0';
793: history(hist, &hev, H_ENTER, buf);
794: }
795:
796: makeargv();
797: if (margc == 0)
798: continue;
799: c = getcmd(margv[0]);
800: if (c == (struct cmd *)-1) {
801: fputs("?Ambiguous command.\n", ttyout);
802: continue;
803: }
804: if (c == 0) {
805: /*
806: * Give editline(3) a shot at unknown commands.
807: * XXX - bogus commands with a colon in
808: * them will not elicit an error.
809: */
810: if (editing &&
811: el_parse(el, margc, (const char **)margv) != 0)
812: fputs("?Invalid command.\n", ttyout);
813: continue;
814: }
815: if (c->c_conn && !connected) {
816: fputs("Not connected.\n", ttyout);
817: continue;
818: }
819: confirmrest = 0;
820: (*c->c_handler)(margc, margv);
821: if (bell && c->c_bell)
822: (void)putc('\007', ttyout);
823: if (c->c_handler != help)
824: break;
825: }
826: (void)signal(SIGINT, (sig_t)intr);
827: (void)signal(SIGPIPE, (sig_t)lostpeer);
828: }
1.1 deraadt 829:
1.129 florian 830: struct cmd *
831: getcmd(const char *name)
832: {
833: const char *p, *q;
834: struct cmd *c, *found;
835: int nmatches, longest;
836:
837: if (name == NULL)
838: return (0);
839:
840: longest = 0;
841: nmatches = 0;
842: found = 0;
843: for (c = cmdtab; (p = c->c_name) != NULL; c++) {
844: for (q = name; *q == *p++; q++)
845: if (*q == 0) /* exact match? */
846: return (c);
847: if (!*q) { /* the name was a prefix */
848: if (q - name > longest) {
849: longest = q - name;
850: nmatches = 1;
851: found = c;
852: } else if (q - name == longest)
853: nmatches++;
854: }
855: }
856: if (nmatches > 1)
857: return ((struct cmd *)-1);
858: return (found);
1.1 deraadt 859: }
860:
1.129 florian 861: /*
862: * Slice a string up into argc/argv.
863: */
864:
865: int slrflag;
866:
867: void
868: makeargv(void)
1.1 deraadt 869: {
1.129 florian 870: char *argp;
1.1 deraadt 871:
1.129 florian 872: stringbase = line; /* scan from first of buffer */
873: argbase = argbuf; /* store from first of buffer */
874: slrflag = 0;
875: marg_sl->sl_cur = 0; /* reset to start of marg_sl */
876: for (margc = 0; ; margc++) {
877: argp = slurpstring();
878: sl_add(marg_sl, argp);
879: if (argp == NULL)
1.121 kmos 880: break;
1.129 florian 881: }
882: if (cursor_pos == line) {
883: cursor_argc = 0;
884: cursor_argo = 0;
885: } else if (cursor_pos != NULL) {
886: cursor_argc = margc;
887: cursor_argo = strlen(margv[margc-1]);
888: }
889: }
1.121 kmos 890:
1.129 florian 891: #define INC_CHKCURSOR(x) { (x)++ ; \
892: if (x == cursor_pos) { \
893: cursor_argc = margc; \
894: cursor_argo = ap-argbase; \
895: cursor_pos = NULL; \
896: } }
1.121 kmos 897:
1.129 florian 898: /*
899: * Parse string into argbuf;
900: * implemented with FSM to
901: * handle quoting and strings
902: */
903: char *
904: slurpstring(void)
905: {
906: int got_one = 0;
907: char *sb = stringbase;
908: char *ap = argbase;
909: char *tmp = argbase; /* will return this if token found */
910:
911: if (*sb == '!' || *sb == '$') { /* recognize ! as a token for shell */
912: switch (slrflag) { /* and $ as token for macro invoke */
913: case 0:
914: slrflag++;
915: INC_CHKCURSOR(stringbase);
916: return ((*sb == '!') ? "!" : "$");
917: /* NOTREACHED */
918: case 1:
919: slrflag++;
920: altarg = stringbase;
921: break;
922: default:
923: break;
1.17 millert 924: }
1.1 deraadt 925: }
1.121 kmos 926:
1.129 florian 927: S0:
928: switch (*sb) {
1.121 kmos 929:
1.129 florian 930: case '\0':
931: goto OUT;
1.121 kmos 932:
1.129 florian 933: case ' ':
934: case '\t':
935: INC_CHKCURSOR(sb);
936: goto S0;
1.1 deraadt 937:
1.129 florian 938: default:
939: switch (slrflag) {
940: case 0:
941: slrflag++;
942: break;
943: case 1:
944: slrflag++;
945: altarg = sb;
946: break;
947: default:
948: break;
949: }
950: goto S1;
951: }
1.1 deraadt 952:
1.129 florian 953: S1:
954: switch (*sb) {
1.1 deraadt 955:
1.129 florian 956: case ' ':
957: case '\t':
958: case '\0':
959: goto OUT; /* end of token */
960:
961: case '\\':
962: INC_CHKCURSOR(sb);
963: goto S2; /* slurp next character */
964:
965: case '"':
966: INC_CHKCURSOR(sb);
967: goto S3; /* slurp quoted string */
1.1 deraadt 968:
1.129 florian 969: default:
970: *ap = *sb; /* add character to token */
971: ap++;
972: INC_CHKCURSOR(sb);
973: got_one = 1;
974: goto S1;
1.1 deraadt 975: }
976:
1.129 florian 977: S2:
978: switch (*sb) {
1.1 deraadt 979:
1.129 florian 980: case '\0':
981: goto OUT;
1.1 deraadt 982:
983: default:
1.129 florian 984: *ap = *sb;
985: ap++;
986: INC_CHKCURSOR(sb);
987: got_one = 1;
988: goto S1;
1.1 deraadt 989: }
990:
1.129 florian 991: S3:
992: switch (*sb) {
993:
994: case '\0':
995: goto OUT;
996:
997: case '"':
998: INC_CHKCURSOR(sb);
999: goto S1;
1000:
1001: default:
1002: *ap = *sb;
1003: ap++;
1004: INC_CHKCURSOR(sb);
1005: got_one = 1;
1006: goto S3;
1007: }
1.1 deraadt 1008:
1.129 florian 1009: OUT:
1010: if (got_one)
1011: *ap++ = '\0';
1012: argbase = ap; /* update storage pointer */
1013: stringbase = sb; /* update scan pointer */
1014: if (got_one) {
1015: return (tmp);
1016: }
1017: switch (slrflag) {
1018: case 0:
1019: slrflag++;
1020: break;
1021: case 1:
1022: slrflag++;
1023: altarg = (char *) 0;
1024: break;
1025: default:
1026: break;
1027: }
1028: return (NULL);
1.1 deraadt 1029: }
1030:
1.129 florian 1031: /*
1032: * Help command.
1033: * Call each command handler with argc == 0 and argv[0] == name.
1034: */
1035: void
1036: help(int argc, char *argv[])
1.1 deraadt 1037: {
1.129 florian 1038: struct cmd *c;
1.1 deraadt 1039:
1.129 florian 1040: if (argc == 1) {
1041: StringList *buf;
1.1 deraadt 1042:
1.129 florian 1043: buf = sl_init();
1044: fprintf(ttyout, "%sommands may be abbreviated. Commands are:\n\n",
1045: proxy ? "Proxy c" : "C");
1046: for (c = cmdtab; c < &cmdtab[NCMDS]; c++)
1047: if (c->c_name && (!proxy || c->c_proxy))
1048: sl_add(buf, c->c_name);
1049: list_vertical(buf);
1050: sl_free(buf, 0);
1051: return;
1052: }
1.17 millert 1053:
1.129 florian 1054: #define HELPINDENT ((int) sizeof("disconnect"))
1.17 millert 1055:
1.129 florian 1056: while (--argc > 0) {
1057: char *arg;
1.17 millert 1058:
1.129 florian 1059: arg = *++argv;
1060: c = getcmd(arg);
1061: if (c == (struct cmd *)-1)
1062: fprintf(ttyout, "?Ambiguous help command %s\n", arg);
1063: else if (c == NULL)
1064: fprintf(ttyout, "?Invalid help command %s\n", arg);
1065: else
1066: fprintf(ttyout, "%-*s\t%s\n", HELPINDENT,
1067: c->c_name, c->c_help);
1068: }
1.17 millert 1069: }
1.129 florian 1070: #endif /* !SMALL */
1.17 millert 1071:
1.129 florian 1072: __dead void
1.58 deraadt 1073: usage(void)
1.17 millert 1074: {
1.129 florian 1075: fprintf(stderr, "usage: "
1076: #ifndef SMALL
1077: "ftp [-46AadEegiMmnptVv] [-D title] [-k seconds] [-P port] "
1078: "[-r seconds]\n"
1.131 deraadt 1079: " [-s sourceaddr] [host [port]]\n"
1080: " ftp [-C] [-N name] [-o output] [-s sourceaddr]\n"
1.129 florian 1081: " ftp://[user:password@]host[:port]/file[/] ...\n"
1.137 jmc 1082: " ftp [-CTu] [-c cookie] [-N name] [-o output] [-S ssl_options] "
1.131 deraadt 1083: "[-s sourceaddr]\n"
1.129 florian 1084: " [-U useragent] [-w seconds] "
1085: "http[s]://[user:password@]host[:port]/file ...\n"
1.131 deraadt 1086: " ftp [-C] [-N name] [-o output] [-s sourceaddr] file:file ...\n"
1087: " ftp [-C] [-N name] [-o output] [-s sourceaddr] host:/file[/] ...\n"
1.129 florian 1088: #else /* !SMALL */
1.130 deraadt 1089: "ftp [-N name] [-o output] "
1.129 florian 1090: "ftp://[user:password@]host[:port]/file[/] ...\n"
1091: #ifndef NOSSL
1.130 deraadt 1092: " ftp [-N name] [-o output] [-S ssl_options] [-w seconds] "
1.129 florian 1093: "http[s]://[user:password@]host[:port]/file ...\n"
1094: #else
1.130 deraadt 1095: " ftp [-N name] [-o output] [-w seconds] http://host[:port]/file ...\n"
1.129 florian 1096: #endif /* NOSSL */
1.130 deraadt 1097: " ftp [-N name] [-o output] file:file ...\n"
1098: " ftp [-N name] [-o output] host:/file[/] ...\n"
1.129 florian 1099: #endif /* !SMALL */
1100: );
1.17 millert 1101: exit(1);
1.1 deraadt 1102: }