Annotation of src/usr.bin/ftp/fetch.c, Revision 1.30
1.30 ! deraadt 1: /* $OpenBSD: fetch.c,v 1.29 2000/05/02 00:54:53 itojun Exp $ */
1.15 millert 2: /* $NetBSD: fetch.c,v 1.14 1997/08/18 10:20:20 lukem Exp $ */
1.1 millert 3:
4: /*-
5: * Copyright (c) 1997 The NetBSD Foundation, Inc.
6: * All rights reserved.
7: *
8: * This code is derived from software contributed to The NetBSD Foundation
9: * by Jason Thorpe and Luke Mewburn.
10: *
11: * Redistribution and use in source and binary forms, with or without
12: * modification, are permitted provided that the following conditions
13: * are met:
14: * 1. Redistributions of source code must retain the above copyright
15: * notice, this list of conditions and the following disclaimer.
16: * 2. Redistributions in binary form must reproduce the above copyright
17: * notice, this list of conditions and the following disclaimer in the
18: * documentation and/or other materials provided with the distribution.
19: * 3. All advertising materials mentioning features or use of this software
20: * must display the following acknowledgement:
21: * This product includes software developed by the NetBSD
22: * Foundation, Inc. and its contributors.
23: * 4. Neither the name of The NetBSD Foundation nor the names of its
24: * contributors may be used to endorse or promote products derived
25: * from this software without specific prior written permission.
26: *
27: * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
28: * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
29: * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
1.15 millert 30: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
31: * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
1.1 millert 32: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37: * POSSIBILITY OF SUCH DAMAGE.
38: */
39:
40: #ifndef lint
1.30 ! deraadt 41: static char rcsid[] = "$OpenBSD: fetch.c,v 1.29 2000/05/02 00:54:53 itojun Exp $";
1.1 millert 42: #endif /* not lint */
43:
44: /*
45: * FTP User Program -- Command line file retrieval
46: */
47:
48: #include <sys/types.h>
49: #include <sys/param.h>
50: #include <sys/socket.h>
1.22 deraadt 51: #include <sys/stat.h>
1.1 millert 52:
53: #include <netinet/in.h>
54:
55: #include <arpa/ftp.h>
56: #include <arpa/inet.h>
57:
58: #include <ctype.h>
59: #include <err.h>
1.17 millert 60: #include <libgen.h>
1.1 millert 61: #include <netdb.h>
62: #include <fcntl.h>
1.3 millert 63: #include <signal.h>
1.1 millert 64: #include <stdio.h>
1.19 deraadt 65: #include <errno.h>
1.1 millert 66: #include <stdlib.h>
67: #include <string.h>
68: #include <unistd.h>
69:
70: #include "ftp_var.h"
71:
1.17 millert 72: static int url_get __P((const char *, const char *, const char *));
1.14 millert 73: void aborthttp __P((int));
1.22 deraadt 74: void abortfile __P((int));
1.14 millert 75:
76:
1.1 millert 77: #define FTP_URL "ftp://" /* ftp URL prefix */
78: #define HTTP_URL "http://" /* http URL prefix */
1.22 deraadt 79: #define FILE_URL "file:" /* file URL prefix */
1.6 millert 80: #define FTP_PROXY "ftp_proxy" /* env var with ftp proxy location */
1.1 millert 81: #define HTTP_PROXY "http_proxy" /* env var with http proxy location */
82:
83:
84: #define EMPTYSTRING(x) ((x) == NULL || (*(x) == '\0'))
85:
86: jmp_buf httpabort;
87:
88: /*
1.6 millert 89: * Retrieve URL, via the proxy in $proxyvar if necessary.
1.1 millert 90: * Modifies the string argument given.
91: * Returns -1 on failure, 0 on success
92: */
1.14 millert 93: static int
1.17 millert 94: url_get(origline, proxyenv, outfile)
1.14 millert 95: const char *origline;
96: const char *proxyenv;
1.17 millert 97: const char *outfile;
1.1 millert 98: {
1.25 itojun 99: struct addrinfo hints, *res0, *res;
100: int error;
1.22 deraadt 101: int i, out, isftpurl, isfileurl;
1.14 millert 102: volatile int s;
103: size_t len;
104: char c, *cp, *ep, *portnum, *path, buf[4096];
1.29 itojun 105: char pbuf[NI_MAXSERV];
1.14 millert 106: const char *savefile;
1.25 itojun 107: char *line, *proxy, *host, *port;
1.28 itojun 108: char *hosttail;
1.14 millert 109: volatile sig_t oldintr;
1.1 millert 110: off_t hashbytes;
1.25 itojun 111: char *cause = "unknown";
1.1 millert 112:
113: s = -1;
114: proxy = NULL;
1.14 millert 115: isftpurl = 0;
1.22 deraadt 116: isfileurl = 0;
1.1 millert 117:
1.14 millert 118: #ifdef __GNUC__ /* XXX: to shut up gcc warnings */
119: (void)&out;
120: (void)&proxy;
121: (void)&savefile;
122: #endif
123:
124: line = strdup(origline);
125: if (line == NULL)
126: errx(1, "Can't allocate memory to parse URL");
1.7 millert 127: if (strncasecmp(line, HTTP_URL, sizeof(HTTP_URL) - 1) == 0)
1.6 millert 128: host = line + sizeof(HTTP_URL) - 1;
1.14 millert 129: else if (strncasecmp(line, FTP_URL, sizeof(FTP_URL) - 1) == 0) {
1.6 millert 130: host = line + sizeof(FTP_URL) - 1;
1.14 millert 131: isftpurl = 1;
1.22 deraadt 132: } else if (strncasecmp(line, FILE_URL, sizeof(FILE_URL) - 1) == 0) {
133: host = line + sizeof(FILE_URL) - 1;
134: isfileurl = 1;
1.14 millert 135: } else
136: errx(1, "url_get: Invalid URL '%s'", line);
1.6 millert 137:
1.22 deraadt 138: if (isfileurl) {
139: path = host;
140: } else {
141: path = strchr(host, '/'); /* find path */
142: if (EMPTYSTRING(path)) {
143: if (isftpurl)
144: goto noftpautologin;
145: warnx("Invalid URL (no `/' after host): %s", origline);
146: goto cleanup_url_get;
147: }
148: *path++ = '\0';
149: if (EMPTYSTRING(path)) {
150: if (isftpurl)
151: goto noftpautologin;
152: warnx("Invalid URL (no file after host): %s", origline);
153: goto cleanup_url_get;
154: }
1.14 millert 155: }
1.1 millert 156:
1.17 millert 157: if (outfile)
158: savefile = outfile;
1.1 millert 159: else
1.17 millert 160: savefile = basename(path);
161:
1.14 millert 162: if (EMPTYSTRING(savefile)) {
163: if (isftpurl)
164: goto noftpautologin;
165: warnx("Invalid URL (no file after directory): %s", origline);
1.6 millert 166: goto cleanup_url_get;
1.14 millert 167: }
1.1 millert 168:
169: if (proxyenv != NULL) { /* use proxy */
170: proxy = strdup(proxyenv);
171: if (proxy == NULL)
1.14 millert 172: errx(1, "Can't allocate memory for proxy URL.");
1.7 millert 173: if (strncasecmp(proxy, HTTP_URL, sizeof(HTTP_URL) - 1) == 0)
1.6 millert 174: host = proxy + sizeof(HTTP_URL) - 1;
1.7 millert 175: else if (strncasecmp(proxy, FTP_URL, sizeof(FTP_URL) - 1) == 0)
1.6 millert 176: host = proxy + sizeof(FTP_URL) - 1;
177: else {
1.14 millert 178: warnx("Malformed proxy URL: %s", proxyenv);
1.6 millert 179: goto cleanup_url_get;
180: }
1.14 millert 181: if (EMPTYSTRING(host)) {
182: warnx("Malformed proxy URL: %s", proxyenv);
1.6 millert 183: goto cleanup_url_get;
1.14 millert 184: }
1.1 millert 185: *--path = '/'; /* add / back to real path */
186: path = strchr(host, '/'); /* remove trailing / on host */
187: if (! EMPTYSTRING(path))
188: *path++ = '\0';
189: path = line;
190: }
191:
1.22 deraadt 192: if (isfileurl) {
193: struct stat st;
194:
195: s = open(path, O_RDONLY);
196: if (s == -1) {
197: warn("Can't open file %s", path);
198: goto cleanup_url_get;
199: }
200:
201: if (fstat(s, &st) == -1)
202: filesize = -1;
203: else
204: filesize = st.st_size;
205:
206: /* Open the output file. */
207: if (strcmp(savefile, "-") != 0) {
208: out = open(savefile, O_CREAT | O_WRONLY | O_TRUNC, 0666);
209: if (out < 0) {
210: warn("Can't open %s", savefile);
211: goto cleanup_url_get;
212: }
213: } else
214: out = fileno(stdout);
215:
216: /* Trap signals */
217: oldintr = NULL;
218: if (setjmp(httpabort)) {
219: if (oldintr)
220: (void)signal(SIGINT, oldintr);
221: goto cleanup_url_get;
222: }
223: oldintr = signal(SIGINT, abortfile);
224:
225: bytes = 0;
226: hashbytes = mark;
227: progressmeter(-1);
228:
229: /* Finally, suck down the file. */
230: i = 0;
231: while ((len = read(s, buf, sizeof(buf))) > 0) {
232: bytes += len;
233: for (cp = buf; len > 0; len -= i, cp += i) {
234: if ((i = write(out, cp, len)) == -1) {
235: warn("Writing %s", savefile);
236: goto cleanup_url_get;
237: }
238: else if (i == 0)
239: break;
240: }
241: if (hash && !progress) {
242: while (bytes >= hashbytes) {
243: (void)putc('#', ttyout);
244: hashbytes += mark;
245: }
246: (void)fflush(ttyout);
247: }
248: }
249: if (hash && !progress && bytes > 0) {
250: if (bytes < mark)
251: (void)putc('#', ttyout);
252: (void)putc('\n', ttyout);
253: (void)fflush(ttyout);
254: }
255: if (len != 0) {
256: warn("Reading from file");
257: goto cleanup_url_get;
258: }
259: progressmeter(1);
260: if (verbose)
261: fputs("Successfully retrieved file.\n", ttyout);
262: (void)signal(SIGINT, oldintr);
263:
264: close(s);
265: if (out != fileno(stdout))
266: close(out);
267: if (proxy)
268: free(proxy);
269: free(line);
270: return (0);
271: }
272:
1.28 itojun 273: if (*host == '[' && (hosttail = strrchr(host, ']')) != NULL &&
274: (hosttail[1] == '\0' || hosttail[1] == ':')) {
275: host++;
276: *hosttail++ = '\0';
277: } else
278: hosttail = host;
279:
280: portnum = strrchr(hosttail, ':'); /* find portnum */
1.1 millert 281: if (portnum != NULL)
282: *portnum++ = '\0';
283:
284: if (debug)
1.10 deraadt 285: fprintf(ttyout, "host %s, port %s, path %s, save as %s.\n",
1.1 millert 286: host, portnum, path, savefile);
287:
1.25 itojun 288: memset(&hints, 0, sizeof(hints));
289: hints.ai_family = PF_UNSPEC;
290: hints.ai_socktype = SOCK_STREAM;
291: port = portnum ? portnum : httpport;
292: error = getaddrinfo(host, port, &hints, &res0);
1.30 ! deraadt 293: if (error == EAI_SERVICE && port == httpport) {
! 294: /*
! 295: * If the services file is corrupt/missing, fall back
! 296: * on our hard-coded defines.
! 297: */
! 298: char pbuf[NI_MAXSERV];
! 299:
! 300: snprintf(pbuf, sizeof(pbuf), "%d", HTTP_PORT);
! 301: error = getaddrinfo(host, pbuf, &hints, &res0);
! 302: }
1.25 itojun 303: if (error) {
304: warnx("%s: %s", gai_strerror(error), host);
305: goto cleanup_url_get;
1.1 millert 306: }
307:
1.25 itojun 308: s = -1;
309: for (res = res0; res; res = res->ai_next) {
310: getnameinfo(res->ai_addr, res->ai_addrlen, buf, sizeof(buf),
311: NULL, 0, NI_NUMERICHOST);
312: fprintf(ttyout, "Trying %s...\n", buf);
1.14 millert 313:
1.25 itojun 314: s = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
315: if (s == -1) {
316: cause = "socket";
317: continue;
1.1 millert 318: }
319:
1.25 itojun 320: again:
321: if (connect(s, res->ai_addr, res->ai_addrlen) < 0) {
322: if (errno == EINTR)
323: goto again;
324: close(s);
325: s = -1;
326: cause = "connect";
1.19 deraadt 327: continue;
328: }
1.25 itojun 329:
1.29 itojun 330: /* get port in numeric */
331: if (getnameinfo(res->ai_addr, res->ai_addrlen, NULL, 0,
332: pbuf, sizeof(pbuf), NI_NUMERICSERV) == 0)
333: port = pbuf;
334: else
335: port = NULL;
336:
1.25 itojun 337: break;
338: }
339: freeaddrinfo(res0);
340: if (s < 0) {
341: warn(cause);
1.6 millert 342: goto cleanup_url_get;
1.1 millert 343: }
344:
345: /*
346: * Construct and send the request. We're expecting a return
347: * status of "200". Proxy requests don't want leading /.
348: */
1.23 deraadt 349: if (verbose) {
350: if (!proxy)
351: fprintf(ttyout, "Requesting %s\n", origline);
352: else
353: fprintf(ttyout, "Requesting %s (via %s)\n",
354: origline, proxyenv);
355: }
1.28 itojun 356: if (strchr(host, ':')) {
357: snprintf(buf, sizeof(buf),
1.29 itojun 358: "GET %s%s HTTP/1.0\r\nHost: [%s]%s%s\r\n\r\n",
359: proxy ? "" : "/", path, host,
360: port ? ":" : "", port ? port : "");
1.28 itojun 361: } else {
362: snprintf(buf, sizeof(buf),
1.29 itojun 363: "GET %s%s HTTP/1.0\r\nHost: %s%s%s\r\n\r\n",
364: proxy ? "" : "/", path, host,
365: port ? ":" : "", port ? port : "");
1.28 itojun 366: }
1.14 millert 367: len = strlen(buf);
368: if (write(s, buf, len) < len) {
369: warn("Writing HTTP request");
1.6 millert 370: goto cleanup_url_get;
1.1 millert 371: }
372: memset(buf, 0, sizeof(buf));
1.14 millert 373: for (cp = buf; cp < buf + sizeof(buf); ) {
1.1 millert 374: if (read(s, cp, 1) != 1)
375: goto improper;
1.4 millert 376: if (*cp == '\r')
377: continue;
1.1 millert 378: if (*cp == '\n')
379: break;
1.14 millert 380: cp++;
1.1 millert 381: }
1.14 millert 382: buf[sizeof(buf) - 1] = '\0'; /* sanity */
1.1 millert 383: cp = strchr(buf, ' ');
384: if (cp == NULL)
385: goto improper;
386: else
387: cp++;
388: if (strncmp(cp, "200", 3)) {
389: warnx("Error retrieving file: %s", cp);
1.6 millert 390: goto cleanup_url_get;
1.1 millert 391: }
392:
393: /*
394: * Read the rest of the header.
395: */
396: memset(buf, 0, sizeof(buf));
397: c = '\0';
1.14 millert 398: for (cp = buf; cp < buf + sizeof(buf); ) {
1.1 millert 399: if (read(s, cp, 1) != 1)
400: goto improper;
1.4 millert 401: if (*cp == '\r')
402: continue;
1.1 millert 403: if (*cp == '\n' && c == '\n')
404: break;
405: c = *cp;
1.14 millert 406: cp++;
1.1 millert 407: }
1.14 millert 408: buf[sizeof(buf) - 1] = '\0'; /* sanity */
1.1 millert 409:
1.9 millert 410: /* Look for the "Content-length: " header. */
1.1 millert 411: #define CONTENTLEN "Content-Length: "
412: for (cp = buf; *cp != '\0'; cp++) {
413: if (tolower(*cp) == 'c' &&
414: strncasecmp(cp, CONTENTLEN, sizeof(CONTENTLEN) - 1) == 0)
415: break;
416: }
1.13 deraadt 417: if (*cp != '\0') {
418: cp += sizeof(CONTENTLEN) - 1;
1.14 millert 419: ep = strchr(cp, '\n');
420: if (ep == NULL)
1.13 deraadt 421: goto improper;
422: else
1.14 millert 423: *ep = '\0';
424: filesize = strtol(cp, &ep, 10);
425: if (filesize < 1 || *ep != '\0')
1.13 deraadt 426: goto improper;
427: } else
428: filesize = -1;
1.1 millert 429:
1.17 millert 430: /* Open the output file. */
431: if (strcmp(savefile, "-") != 0) {
1.10 deraadt 432: out = open(savefile, O_CREAT | O_WRONLY | O_TRUNC, 0666);
433: if (out < 0) {
434: warn("Can't open %s", savefile);
435: goto cleanup_url_get;
436: }
437: } else
1.17 millert 438: out = fileno(stdout);
1.1 millert 439:
440: /* Trap signals */
441: oldintr = NULL;
442: if (setjmp(httpabort)) {
443: if (oldintr)
1.2 millert 444: (void)signal(SIGINT, oldintr);
1.6 millert 445: goto cleanup_url_get;
1.1 millert 446: }
447: oldintr = signal(SIGINT, aborthttp);
448:
449: bytes = 0;
450: hashbytes = mark;
451: progressmeter(-1);
452:
453: /* Finally, suck down the file. */
454: i = 0;
455: while ((len = read(s, buf, sizeof(buf))) > 0) {
456: bytes += len;
457: for (cp = buf; len > 0; len -= i, cp += i) {
458: if ((i = write(out, cp, len)) == -1) {
459: warn("Writing %s", savefile);
1.6 millert 460: goto cleanup_url_get;
1.1 millert 461: }
462: else if (i == 0)
463: break;
464: }
465: if (hash && !progress) {
466: while (bytes >= hashbytes) {
1.10 deraadt 467: (void)putc('#', ttyout);
1.1 millert 468: hashbytes += mark;
469: }
1.10 deraadt 470: (void)fflush(ttyout);
1.1 millert 471: }
472: }
473: if (hash && !progress && bytes > 0) {
474: if (bytes < mark)
1.10 deraadt 475: (void)putc('#', ttyout);
476: (void)putc('\n', ttyout);
477: (void)fflush(ttyout);
1.1 millert 478: }
479: if (len != 0) {
480: warn("Reading from socket");
1.6 millert 481: goto cleanup_url_get;
1.1 millert 482: }
483: progressmeter(1);
1.24 deraadt 484: if (filesize != -1 && len == 0 && bytes != filesize) {
485: if (verbose)
486: fputs("Read short file.\n", ttyout);
487: goto cleanup_url_get;
488: }
489:
1.1 millert 490: if (verbose)
1.10 deraadt 491: fputs("Successfully retrieved file.\n", ttyout);
1.2 millert 492: (void)signal(SIGINT, oldintr);
1.1 millert 493:
494: close(s);
1.17 millert 495: if (out != fileno(stdout))
1.10 deraadt 496: close(out);
1.1 millert 497: if (proxy)
498: free(proxy);
1.14 millert 499: free(line);
1.2 millert 500: return (0);
1.1 millert 501:
1.14 millert 502: noftpautologin:
503: warnx(
504: "Auto-login using ftp URLs isn't supported when using $ftp_proxy");
505: goto cleanup_url_get;
506:
1.1 millert 507: improper:
1.8 millert 508: warnx("Improper response from %s", host);
1.14 millert 509:
1.6 millert 510: cleanup_url_get:
1.1 millert 511: if (s != -1)
512: close(s);
513: if (proxy)
514: free(proxy);
1.14 millert 515: free(line);
1.2 millert 516: return (-1);
1.1 millert 517: }
518:
519: /*
520: * Abort a http retrieval
521: */
522: void
1.3 millert 523: aborthttp(notused)
524: int notused;
1.1 millert 525: {
526:
527: alarmtimer(0);
1.10 deraadt 528: fputs("\nhttp fetch aborted.\n", ttyout);
529: (void)fflush(ttyout);
1.1 millert 530: longjmp(httpabort, 1);
531: }
532:
533: /*
1.22 deraadt 534: * Abort a http retrieval
535: */
536: void
537: abortfile(notused)
538: int notused;
539: {
540:
541: alarmtimer(0);
542: fputs("\nfile fetch aborted.\n", ttyout);
543: (void)fflush(ttyout);
544: longjmp(httpabort, 1);
545: }
546:
547: /*
1.1 millert 548: * Retrieve multiple files from the command line, transferring
549: * files of the form "host:path", "ftp://host/path" using the
550: * ftp protocol, and files of the form "http://host/path" using
551: * the http protocol.
1.2 millert 552: * If path has a trailing "/", then return (-1);
1.1 millert 553: * the path will be cd-ed into and the connection remains open,
554: * and the function will return -1 (to indicate the connection
555: * is alive).
556: * If an error occurs the return value will be the offset+1 in
557: * argv[] of the file that caused a problem (i.e, argv[x]
558: * returns x+1)
559: * Otherwise, 0 is returned if all files retrieved successfully.
560: */
561: int
1.17 millert 562: auto_fetch(argc, argv, outfile)
1.1 millert 563: int argc;
564: char *argv[];
1.17 millert 565: char *outfile;
1.1 millert 566: {
567: static char lasthost[MAXHOSTNAMELEN];
568: char *xargv[5];
569: char *cp, *line, *host, *dir, *file, *portnum;
1.8 millert 570: char *user, *pass;
1.6 millert 571: char *ftpproxy, *httpproxy;
1.14 millert 572: int rval, xargc;
573: volatile int argpos;
1.4 millert 574: int dirhasglob, filehasglob;
1.14 millert 575: char rempath[MAXPATHLEN];
1.1 millert 576:
577: argpos = 0;
578:
579: if (setjmp(toplevel)) {
580: if (connected)
581: disconnect(0, NULL);
1.2 millert 582: return (argpos + 1);
1.1 millert 583: }
1.3 millert 584: (void)signal(SIGINT, (sig_t)intr);
585: (void)signal(SIGPIPE, (sig_t)lostpeer);
1.1 millert 586:
1.6 millert 587: ftpproxy = getenv(FTP_PROXY);
588: httpproxy = getenv(HTTP_PROXY);
589:
1.1 millert 590: /*
591: * Loop through as long as there's files to fetch.
592: */
593: for (rval = 0; (rval == 0) && (argpos < argc); free(line), argpos++) {
594: if (strchr(argv[argpos], ':') == NULL)
595: break;
1.8 millert 596: host = dir = file = portnum = user = pass = NULL;
1.1 millert 597:
598: /*
599: * We muck with the string, so we make a copy.
600: */
601: line = strdup(argv[argpos]);
602: if (line == NULL)
603: errx(1, "Can't allocate memory for auto-fetch.");
604:
605: /*
606: * Try HTTP URL-style arguments first.
607: */
1.22 deraadt 608: if (strncasecmp(line, HTTP_URL, sizeof(HTTP_URL) - 1) == 0 ||
609: strncasecmp(line, FILE_URL, sizeof(FILE_URL) - 1) == 0) {
1.17 millert 610: if (url_get(line, httpproxy, outfile) == -1)
1.1 millert 611: rval = argpos + 1;
612: continue;
613: }
614:
615: /*
1.6 millert 616: * Try FTP URL-style arguments next. If ftpproxy is
617: * set, use url_get() instead of standard ftp.
618: * Finally, try host:file.
1.1 millert 619: */
620: host = line;
1.7 millert 621: if (strncasecmp(line, FTP_URL, sizeof(FTP_URL) - 1) == 0) {
1.6 millert 622: if (ftpproxy) {
1.17 millert 623: if (url_get(line, ftpproxy, outfile) == -1)
1.6 millert 624: rval = argpos + 1;
625: continue;
626: }
1.1 millert 627: host += sizeof(FTP_URL) - 1;
1.8 millert 628: dir = strchr(host, '/');
1.1 millert 629:
1.8 millert 630: /* Look for [user:pass@]host[:port] */
1.11 millert 631: pass = strpbrk(host, ":@/");
1.9 millert 632: if (pass == NULL || *pass == '/') {
1.11 millert 633: pass = NULL;
1.8 millert 634: goto parsed_url;
1.9 millert 635: }
1.11 millert 636: if (pass == host || *pass == '@') {
637: bad_ftp_url:
1.14 millert 638: warnx("Invalid URL: %s", argv[argpos]);
1.8 millert 639: rval = argpos + 1;
640: continue;
641: }
642: *pass++ = '\0';
1.12 millert 643: /* XXX - assumes no '@' in pathname */
644: if ((cp = strrchr(pass, '@')) == NULL)
645: cp = strpbrk(pass, ":@/");
1.8 millert 646: if (cp == NULL || *cp == '/') {
647: portnum = pass;
1.11 millert 648: pass = NULL;
1.8 millert 649: goto parsed_url;
650: }
1.11 millert 651: if (EMPTYSTRING(cp) || *cp == ':')
652: goto bad_ftp_url;
1.8 millert 653: *cp++ = '\0';
1.11 millert 654: user = host;
655: if (EMPTYSTRING(user))
656: goto bad_ftp_url;
1.8 millert 657: host = cp;
1.25 itojun 658:
659: #if 0
660: /* look for IPv6 address URL */
661: if (host == '[' && (cp = strrchr(host, ']'))) {
662: host++;
663: *cp++ = '\0';
664: } else
665: cp = host;
666: #endif
667:
668: portnum = strrchr(cp, ':');
1.1 millert 669: if (portnum != NULL)
670: *portnum++ = '\0';
1.8 millert 671: } else { /* classic style `host:file' */
672: dir = strchr(host, ':');
673: }
1.16 millert 674: parsed_url:
1.1 millert 675: if (EMPTYSTRING(host)) {
676: rval = argpos + 1;
677: continue;
678: }
679:
680: /*
1.9 millert 681: * If dir is NULL, the file wasn't specified
1.1 millert 682: * (URL looked something like ftp://host)
683: */
1.8 millert 684: if (dir != NULL)
685: *dir++ = '\0';
1.1 millert 686:
687: /*
688: * Extract the file and (if present) directory name.
689: */
690: if (! EMPTYSTRING(dir)) {
1.8 millert 691: cp = strrchr(dir, '/');
1.1 millert 692: if (cp != NULL) {
693: *cp++ = '\0';
694: file = cp;
695: } else {
696: file = dir;
697: dir = NULL;
698: }
699: }
700: if (debug)
1.10 deraadt 701: fprintf(ttyout, "user %s:%s host %s port %s dir %s file %s\n",
1.8 millert 702: user, pass, host, portnum, dir, file);
1.1 millert 703:
704: /*
705: * Set up the connection if we don't have one.
706: */
707: if (strcmp(host, lasthost) != 0) {
1.8 millert 708: int oautologin;
709:
1.5 millert 710: (void)strcpy(lasthost, host);
1.1 millert 711: if (connected)
712: disconnect(0, NULL);
713: xargv[0] = __progname;
714: xargv[1] = host;
715: xargv[2] = NULL;
716: xargc = 2;
1.8 millert 717: if (! EMPTYSTRING(portnum)) {
1.1 millert 718: xargv[2] = portnum;
719: xargv[3] = NULL;
720: xargc = 3;
721: }
1.8 millert 722: oautologin = autologin;
723: if (user != NULL)
724: autologin = 0;
1.1 millert 725: setpeer(xargc, xargv);
1.8 millert 726: autologin = oautologin;
727: if ((connected == 0) ||
1.14 millert 728: ((connected == 1) && !login(host, user, pass))) {
1.8 millert 729: warnx("Can't connect or login to host `%s'",
730: host);
1.1 millert 731: rval = argpos + 1;
732: continue;
733: }
734:
735: /* Always use binary transfers. */
736: setbinary(0, NULL);
737: }
1.8 millert 738: /* cd back to '/' */
739: xargv[0] = "cd";
740: xargv[1] = "/";
741: xargv[2] = NULL;
742: cd(2, xargv);
743: if (! dirchange) {
744: rval = argpos + 1;
745: continue;
1.1 millert 746: }
747:
1.4 millert 748: dirhasglob = filehasglob = 0;
749: if (doglob) {
750: if (! EMPTYSTRING(dir) &&
751: strpbrk(dir, "*?[]{}") != NULL)
752: dirhasglob = 1;
753: if (! EMPTYSTRING(file) &&
754: strpbrk(file, "*?[]{}") != NULL)
755: filehasglob = 1;
756: }
757:
1.1 millert 758: /* Change directories, if necessary. */
1.4 millert 759: if (! EMPTYSTRING(dir) && !dirhasglob) {
1.1 millert 760: xargv[0] = "cd";
761: xargv[1] = dir;
762: xargv[2] = NULL;
763: cd(2, xargv);
764: if (! dirchange) {
765: rval = argpos + 1;
766: continue;
767: }
768: }
769:
770: if (EMPTYSTRING(file)) {
771: rval = -1;
772: continue;
773: }
774:
1.21 marc 775: if (verbose)
1.10 deraadt 776: fprintf(ttyout, "Retrieving %s/%s\n", dir ? dir : "", file);
1.1 millert 777:
1.4 millert 778: if (dirhasglob) {
779: snprintf(rempath, sizeof(rempath), "%s/%s", dir, file);
780: file = rempath;
781: }
782:
783: /* Fetch the file(s). */
1.10 deraadt 784: xargc = 2;
1.1 millert 785: xargv[0] = "get";
786: xargv[1] = file;
787: xargv[2] = NULL;
1.4 millert 788: if (dirhasglob || filehasglob) {
789: int ointeractive;
790:
791: ointeractive = interactive;
792: interactive = 0;
793: xargv[0] = "mget";
1.10 deraadt 794: mget(xargc, xargv);
1.5 millert 795: interactive = ointeractive;
1.10 deraadt 796: } else {
1.17 millert 797: if (outfile != NULL) {
798: xargv[2] = outfile;
799: xargv[3] = NULL;
1.10 deraadt 800: xargc++;
801: }
802: get(xargc, xargv);
803: }
1.1 millert 804:
1.4 millert 805: if ((code / 100) != COMPLETE)
1.1 millert 806: rval = argpos + 1;
807: }
808: if (connected && rval != -1)
809: disconnect(0, NULL);
810: return (rval);
1.25 itojun 811: }
812:
813: int
814: isurl(p)
815: const char *p;
816: {
1.27 millert 817:
1.26 deraadt 818: if (strncasecmp(p, FTP_URL, sizeof(FTP_URL) - 1) == 0 ||
819: strncasecmp(p, HTTP_URL, sizeof(HTTP_URL) - 1) == 0 ||
1.27 millert 820: strncasecmp(p, FILE_URL, sizeof(FILE_URL) - 1) == 0 ||
821: strstr(p, ":/"))
822: return (1);
823: return (0);
1.1 millert 824: }
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