Annotation of src/usr.bin/ftp/fetch.c, Revision 1.34
1.34 ! millert 1: /* $OpenBSD: fetch.c,v 1.33 2000/06/30 16:00:15 millert 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
1.34 ! millert 41: static char rcsid[] = "$OpenBSD: fetch.c,v 1.33 2000/06/30 16:00:15 millert 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;
1.34 ! millert 101: int i, isftpurl, isfileurl;
! 102: volatile int s, out;
1.14 millert 103: size_t len;
104: char c, *cp, *ep, *portnum, *path, buf[4096];
1.29 itojun 105: char pbuf[NI_MAXSERV];
1.34 ! millert 106: const char * volatile savefile;
! 107: char *line, *host, *port;
! 108: char * volatile proxy;
1.28 itojun 109: char *hosttail;
1.14 millert 110: volatile sig_t oldintr;
1.1 millert 111: off_t hashbytes;
1.25 itojun 112: char *cause = "unknown";
1.1 millert 113:
114: s = -1;
115: proxy = NULL;
1.14 millert 116: isftpurl = 0;
1.22 deraadt 117: isfileurl = 0;
1.14 millert 118:
119: line = strdup(origline);
120: if (line == NULL)
121: errx(1, "Can't allocate memory to parse URL");
1.7 millert 122: if (strncasecmp(line, HTTP_URL, sizeof(HTTP_URL) - 1) == 0)
1.6 millert 123: host = line + sizeof(HTTP_URL) - 1;
1.14 millert 124: else if (strncasecmp(line, FTP_URL, sizeof(FTP_URL) - 1) == 0) {
1.6 millert 125: host = line + sizeof(FTP_URL) - 1;
1.14 millert 126: isftpurl = 1;
1.22 deraadt 127: } else if (strncasecmp(line, FILE_URL, sizeof(FILE_URL) - 1) == 0) {
128: host = line + sizeof(FILE_URL) - 1;
129: isfileurl = 1;
1.14 millert 130: } else
131: errx(1, "url_get: Invalid URL '%s'", line);
1.6 millert 132:
1.22 deraadt 133: if (isfileurl) {
134: path = host;
135: } else {
136: path = strchr(host, '/'); /* find path */
137: if (EMPTYSTRING(path)) {
138: if (isftpurl)
139: goto noftpautologin;
140: warnx("Invalid URL (no `/' after host): %s", origline);
141: goto cleanup_url_get;
142: }
143: *path++ = '\0';
144: if (EMPTYSTRING(path)) {
145: if (isftpurl)
146: goto noftpautologin;
147: warnx("Invalid URL (no file after host): %s", origline);
148: goto cleanup_url_get;
149: }
1.14 millert 150: }
1.1 millert 151:
1.17 millert 152: if (outfile)
153: savefile = outfile;
1.1 millert 154: else
1.17 millert 155: savefile = basename(path);
156:
1.14 millert 157: if (EMPTYSTRING(savefile)) {
158: if (isftpurl)
159: goto noftpautologin;
160: warnx("Invalid URL (no file after directory): %s", origline);
1.6 millert 161: goto cleanup_url_get;
1.14 millert 162: }
1.1 millert 163:
164: if (proxyenv != NULL) { /* use proxy */
165: proxy = strdup(proxyenv);
166: if (proxy == NULL)
1.14 millert 167: errx(1, "Can't allocate memory for proxy URL.");
1.7 millert 168: if (strncasecmp(proxy, HTTP_URL, sizeof(HTTP_URL) - 1) == 0)
1.6 millert 169: host = proxy + sizeof(HTTP_URL) - 1;
1.7 millert 170: else if (strncasecmp(proxy, FTP_URL, sizeof(FTP_URL) - 1) == 0)
1.6 millert 171: host = proxy + sizeof(FTP_URL) - 1;
172: else {
1.14 millert 173: warnx("Malformed proxy URL: %s", proxyenv);
1.6 millert 174: goto cleanup_url_get;
175: }
1.14 millert 176: if (EMPTYSTRING(host)) {
177: warnx("Malformed proxy URL: %s", proxyenv);
1.6 millert 178: goto cleanup_url_get;
1.14 millert 179: }
1.1 millert 180: *--path = '/'; /* add / back to real path */
181: path = strchr(host, '/'); /* remove trailing / on host */
182: if (! EMPTYSTRING(path))
183: *path++ = '\0';
184: path = line;
185: }
186:
1.22 deraadt 187: if (isfileurl) {
188: struct stat st;
189:
190: s = open(path, O_RDONLY);
191: if (s == -1) {
192: warn("Can't open file %s", path);
193: goto cleanup_url_get;
194: }
195:
196: if (fstat(s, &st) == -1)
197: filesize = -1;
198: else
199: filesize = st.st_size;
200:
201: /* Open the output file. */
202: if (strcmp(savefile, "-") != 0) {
203: out = open(savefile, O_CREAT | O_WRONLY | O_TRUNC, 0666);
204: if (out < 0) {
205: warn("Can't open %s", savefile);
206: goto cleanup_url_get;
207: }
208: } else
209: out = fileno(stdout);
210:
211: /* Trap signals */
212: oldintr = NULL;
213: if (setjmp(httpabort)) {
214: if (oldintr)
215: (void)signal(SIGINT, oldintr);
216: goto cleanup_url_get;
217: }
218: oldintr = signal(SIGINT, abortfile);
219:
220: bytes = 0;
221: hashbytes = mark;
222: progressmeter(-1);
223:
224: /* Finally, suck down the file. */
225: i = 0;
226: while ((len = read(s, buf, sizeof(buf))) > 0) {
227: bytes += len;
228: for (cp = buf; len > 0; len -= i, cp += i) {
229: if ((i = write(out, cp, len)) == -1) {
230: warn("Writing %s", savefile);
231: goto cleanup_url_get;
232: }
233: else if (i == 0)
234: break;
235: }
236: if (hash && !progress) {
237: while (bytes >= hashbytes) {
238: (void)putc('#', ttyout);
239: hashbytes += mark;
240: }
241: (void)fflush(ttyout);
242: }
243: }
244: if (hash && !progress && bytes > 0) {
245: if (bytes < mark)
246: (void)putc('#', ttyout);
247: (void)putc('\n', ttyout);
248: (void)fflush(ttyout);
249: }
250: if (len != 0) {
251: warn("Reading from file");
252: goto cleanup_url_get;
253: }
254: progressmeter(1);
255: if (verbose)
256: fputs("Successfully retrieved file.\n", ttyout);
257: (void)signal(SIGINT, oldintr);
258:
259: close(s);
260: if (out != fileno(stdout))
261: close(out);
262: if (proxy)
263: free(proxy);
264: free(line);
265: return (0);
266: }
267:
1.28 itojun 268: if (*host == '[' && (hosttail = strrchr(host, ']')) != NULL &&
269: (hosttail[1] == '\0' || hosttail[1] == ':')) {
270: host++;
271: *hosttail++ = '\0';
272: } else
273: hosttail = host;
274:
275: portnum = strrchr(hosttail, ':'); /* find portnum */
1.1 millert 276: if (portnum != NULL)
277: *portnum++ = '\0';
278:
279: if (debug)
1.10 deraadt 280: fprintf(ttyout, "host %s, port %s, path %s, save as %s.\n",
1.1 millert 281: host, portnum, path, savefile);
282:
1.25 itojun 283: memset(&hints, 0, sizeof(hints));
284: hints.ai_family = PF_UNSPEC;
285: hints.ai_socktype = SOCK_STREAM;
286: port = portnum ? portnum : httpport;
287: error = getaddrinfo(host, port, &hints, &res0);
1.30 deraadt 288: if (error == EAI_SERVICE && port == httpport) {
289: /*
290: * If the services file is corrupt/missing, fall back
291: * on our hard-coded defines.
292: */
293: char pbuf[NI_MAXSERV];
294:
295: snprintf(pbuf, sizeof(pbuf), "%d", HTTP_PORT);
296: error = getaddrinfo(host, pbuf, &hints, &res0);
297: }
1.25 itojun 298: if (error) {
299: warnx("%s: %s", gai_strerror(error), host);
300: goto cleanup_url_get;
1.1 millert 301: }
302:
1.25 itojun 303: s = -1;
304: for (res = res0; res; res = res->ai_next) {
305: getnameinfo(res->ai_addr, res->ai_addrlen, buf, sizeof(buf),
306: NULL, 0, NI_NUMERICHOST);
307: fprintf(ttyout, "Trying %s...\n", buf);
1.14 millert 308:
1.25 itojun 309: s = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
310: if (s == -1) {
311: cause = "socket";
312: continue;
1.1 millert 313: }
314:
1.25 itojun 315: again:
316: if (connect(s, res->ai_addr, res->ai_addrlen) < 0) {
317: if (errno == EINTR)
318: goto again;
319: close(s);
320: s = -1;
321: cause = "connect";
1.19 deraadt 322: continue;
323: }
1.25 itojun 324:
1.29 itojun 325: /* get port in numeric */
326: if (getnameinfo(res->ai_addr, res->ai_addrlen, NULL, 0,
327: pbuf, sizeof(pbuf), NI_NUMERICSERV) == 0)
328: port = pbuf;
329: else
330: port = NULL;
331:
1.25 itojun 332: break;
333: }
334: freeaddrinfo(res0);
335: if (s < 0) {
1.33 millert 336: warn("%s", cause);
1.6 millert 337: goto cleanup_url_get;
1.1 millert 338: }
339:
340: /*
341: * Construct and send the request. We're expecting a return
342: * status of "200". Proxy requests don't want leading /.
343: */
1.32 itojun 344: if (proxy) {
345: /*
346: * Host: directive must use the destination host address for
347: * the original URI (path). We do not attach it at this moment.
348: */
349: if (verbose)
1.23 deraadt 350: fprintf(ttyout, "Requesting %s (via %s)\n",
351: origline, proxyenv);
1.32 itojun 352: snprintf(buf, sizeof(buf), "GET %s HTTP/1.0\r\n\r\n", path);
1.28 itojun 353: } else {
1.32 itojun 354: if (verbose)
355: fprintf(ttyout, "Requesting %s\n", origline);
356: if (strchr(host, ':')) {
357: char *h, *p;
358:
359: /* strip off scoped address portion, since it's local to node */
360: h = strdup(host);
361: if (h == NULL)
362: errx(1, "Can't allocate memory.");
363: if ((p = strchr(h, '%')) != NULL)
364: *p = '\0';
365: snprintf(buf, sizeof(buf),
366: "GET /%s HTTP/1.0\r\nHost: [%s]%s%s\r\n\r\n",
367: path, h, port ? ":" : "", port ? port : "");
368: free(h);
369: } else {
370: snprintf(buf, sizeof(buf),
371: "GET /%s HTTP/1.0\r\nHost: %s%s%s\r\n\r\n",
372: path, host, port ? ":" : "", port ? port : "");
373: }
1.28 itojun 374: }
1.14 millert 375: len = strlen(buf);
376: if (write(s, buf, len) < len) {
377: warn("Writing HTTP request");
1.6 millert 378: goto cleanup_url_get;
1.1 millert 379: }
380: memset(buf, 0, sizeof(buf));
1.14 millert 381: for (cp = buf; cp < buf + sizeof(buf); ) {
1.1 millert 382: if (read(s, cp, 1) != 1)
383: goto improper;
1.4 millert 384: if (*cp == '\r')
385: continue;
1.1 millert 386: if (*cp == '\n')
387: break;
1.14 millert 388: cp++;
1.1 millert 389: }
1.14 millert 390: buf[sizeof(buf) - 1] = '\0'; /* sanity */
1.1 millert 391: cp = strchr(buf, ' ');
392: if (cp == NULL)
393: goto improper;
394: else
395: cp++;
396: if (strncmp(cp, "200", 3)) {
397: warnx("Error retrieving file: %s", cp);
1.6 millert 398: goto cleanup_url_get;
1.1 millert 399: }
400:
401: /*
402: * Read the rest of the header.
403: */
404: memset(buf, 0, sizeof(buf));
405: c = '\0';
1.14 millert 406: for (cp = buf; cp < buf + sizeof(buf); ) {
1.1 millert 407: if (read(s, cp, 1) != 1)
408: goto improper;
1.4 millert 409: if (*cp == '\r')
410: continue;
1.1 millert 411: if (*cp == '\n' && c == '\n')
412: break;
413: c = *cp;
1.14 millert 414: cp++;
1.1 millert 415: }
1.14 millert 416: buf[sizeof(buf) - 1] = '\0'; /* sanity */
1.1 millert 417:
1.9 millert 418: /* Look for the "Content-length: " header. */
1.1 millert 419: #define CONTENTLEN "Content-Length: "
420: for (cp = buf; *cp != '\0'; cp++) {
421: if (tolower(*cp) == 'c' &&
422: strncasecmp(cp, CONTENTLEN, sizeof(CONTENTLEN) - 1) == 0)
423: break;
424: }
1.13 deraadt 425: if (*cp != '\0') {
426: cp += sizeof(CONTENTLEN) - 1;
1.14 millert 427: ep = strchr(cp, '\n');
428: if (ep == NULL)
1.13 deraadt 429: goto improper;
430: else
1.14 millert 431: *ep = '\0';
432: filesize = strtol(cp, &ep, 10);
433: if (filesize < 1 || *ep != '\0')
1.13 deraadt 434: goto improper;
435: } else
436: filesize = -1;
1.1 millert 437:
1.17 millert 438: /* Open the output file. */
439: if (strcmp(savefile, "-") != 0) {
1.10 deraadt 440: out = open(savefile, O_CREAT | O_WRONLY | O_TRUNC, 0666);
441: if (out < 0) {
442: warn("Can't open %s", savefile);
443: goto cleanup_url_get;
444: }
445: } else
1.17 millert 446: out = fileno(stdout);
1.1 millert 447:
448: /* Trap signals */
449: oldintr = NULL;
450: if (setjmp(httpabort)) {
451: if (oldintr)
1.2 millert 452: (void)signal(SIGINT, oldintr);
1.6 millert 453: goto cleanup_url_get;
1.1 millert 454: }
455: oldintr = signal(SIGINT, aborthttp);
456:
457: bytes = 0;
458: hashbytes = mark;
459: progressmeter(-1);
460:
461: /* Finally, suck down the file. */
462: i = 0;
463: while ((len = read(s, buf, sizeof(buf))) > 0) {
464: bytes += len;
465: for (cp = buf; len > 0; len -= i, cp += i) {
466: if ((i = write(out, cp, len)) == -1) {
467: warn("Writing %s", savefile);
1.6 millert 468: goto cleanup_url_get;
1.1 millert 469: }
470: else if (i == 0)
471: break;
472: }
473: if (hash && !progress) {
474: while (bytes >= hashbytes) {
1.10 deraadt 475: (void)putc('#', ttyout);
1.1 millert 476: hashbytes += mark;
477: }
1.10 deraadt 478: (void)fflush(ttyout);
1.1 millert 479: }
480: }
481: if (hash && !progress && bytes > 0) {
482: if (bytes < mark)
1.10 deraadt 483: (void)putc('#', ttyout);
484: (void)putc('\n', ttyout);
485: (void)fflush(ttyout);
1.1 millert 486: }
487: if (len != 0) {
488: warn("Reading from socket");
1.6 millert 489: goto cleanup_url_get;
1.1 millert 490: }
491: progressmeter(1);
1.24 deraadt 492: if (filesize != -1 && len == 0 && bytes != filesize) {
493: if (verbose)
494: fputs("Read short file.\n", ttyout);
495: goto cleanup_url_get;
496: }
497:
1.1 millert 498: if (verbose)
1.10 deraadt 499: fputs("Successfully retrieved file.\n", ttyout);
1.2 millert 500: (void)signal(SIGINT, oldintr);
1.1 millert 501:
502: close(s);
1.17 millert 503: if (out != fileno(stdout))
1.10 deraadt 504: close(out);
1.1 millert 505: if (proxy)
506: free(proxy);
1.14 millert 507: free(line);
1.2 millert 508: return (0);
1.1 millert 509:
1.14 millert 510: noftpautologin:
511: warnx(
512: "Auto-login using ftp URLs isn't supported when using $ftp_proxy");
513: goto cleanup_url_get;
514:
1.1 millert 515: improper:
1.8 millert 516: warnx("Improper response from %s", host);
1.14 millert 517:
1.6 millert 518: cleanup_url_get:
1.1 millert 519: if (s != -1)
520: close(s);
521: if (proxy)
522: free(proxy);
1.14 millert 523: free(line);
1.2 millert 524: return (-1);
1.1 millert 525: }
526:
527: /*
528: * Abort a http retrieval
529: */
530: void
1.3 millert 531: aborthttp(notused)
532: int notused;
1.1 millert 533: {
534:
535: alarmtimer(0);
1.10 deraadt 536: fputs("\nhttp fetch aborted.\n", ttyout);
537: (void)fflush(ttyout);
1.1 millert 538: longjmp(httpabort, 1);
539: }
540:
541: /*
1.22 deraadt 542: * Abort a http retrieval
543: */
544: void
545: abortfile(notused)
546: int notused;
547: {
548:
549: alarmtimer(0);
550: fputs("\nfile fetch aborted.\n", ttyout);
551: (void)fflush(ttyout);
552: longjmp(httpabort, 1);
553: }
554:
555: /*
1.1 millert 556: * Retrieve multiple files from the command line, transferring
557: * files of the form "host:path", "ftp://host/path" using the
558: * ftp protocol, and files of the form "http://host/path" using
559: * the http protocol.
1.2 millert 560: * If path has a trailing "/", then return (-1);
1.1 millert 561: * the path will be cd-ed into and the connection remains open,
562: * and the function will return -1 (to indicate the connection
563: * is alive).
564: * If an error occurs the return value will be the offset+1 in
565: * argv[] of the file that caused a problem (i.e, argv[x]
566: * returns x+1)
567: * Otherwise, 0 is returned if all files retrieved successfully.
568: */
569: int
1.17 millert 570: auto_fetch(argc, argv, outfile)
1.1 millert 571: int argc;
572: char *argv[];
1.17 millert 573: char *outfile;
1.1 millert 574: {
575: static char lasthost[MAXHOSTNAMELEN];
576: char *xargv[5];
577: char *cp, *line, *host, *dir, *file, *portnum;
1.8 millert 578: char *user, *pass;
1.6 millert 579: char *ftpproxy, *httpproxy;
1.14 millert 580: int rval, xargc;
581: volatile int argpos;
1.4 millert 582: int dirhasglob, filehasglob;
1.14 millert 583: char rempath[MAXPATHLEN];
1.1 millert 584:
585: argpos = 0;
586:
587: if (setjmp(toplevel)) {
588: if (connected)
589: disconnect(0, NULL);
1.2 millert 590: return (argpos + 1);
1.1 millert 591: }
1.3 millert 592: (void)signal(SIGINT, (sig_t)intr);
593: (void)signal(SIGPIPE, (sig_t)lostpeer);
1.1 millert 594:
1.6 millert 595: ftpproxy = getenv(FTP_PROXY);
596: httpproxy = getenv(HTTP_PROXY);
597:
1.1 millert 598: /*
599: * Loop through as long as there's files to fetch.
600: */
601: for (rval = 0; (rval == 0) && (argpos < argc); free(line), argpos++) {
602: if (strchr(argv[argpos], ':') == NULL)
603: break;
1.8 millert 604: host = dir = file = portnum = user = pass = NULL;
1.1 millert 605:
606: /*
607: * We muck with the string, so we make a copy.
608: */
609: line = strdup(argv[argpos]);
610: if (line == NULL)
611: errx(1, "Can't allocate memory for auto-fetch.");
612:
613: /*
614: * Try HTTP URL-style arguments first.
615: */
1.22 deraadt 616: if (strncasecmp(line, HTTP_URL, sizeof(HTTP_URL) - 1) == 0 ||
617: strncasecmp(line, FILE_URL, sizeof(FILE_URL) - 1) == 0) {
1.17 millert 618: if (url_get(line, httpproxy, outfile) == -1)
1.1 millert 619: rval = argpos + 1;
620: continue;
621: }
622:
623: /*
1.6 millert 624: * Try FTP URL-style arguments next. If ftpproxy is
625: * set, use url_get() instead of standard ftp.
626: * Finally, try host:file.
1.1 millert 627: */
628: host = line;
1.7 millert 629: if (strncasecmp(line, FTP_URL, sizeof(FTP_URL) - 1) == 0) {
1.31 itojun 630: char *passend, *userend;
631:
1.6 millert 632: if (ftpproxy) {
1.17 millert 633: if (url_get(line, ftpproxy, outfile) == -1)
1.6 millert 634: rval = argpos + 1;
635: continue;
636: }
1.1 millert 637: host += sizeof(FTP_URL) - 1;
1.8 millert 638: dir = strchr(host, '/');
1.1 millert 639:
1.8 millert 640: /* Look for [user:pass@]host[:port] */
1.31 itojun 641:
642: /* check if we have "user:pass@" */
643: passend = strchr(host, '@');
644: userend = strchr(host, ':');
645: if (passend && userend && userend < passend &&
646: (!dir || passend < dir)) {
647: user = host;
648: pass = userend + 1;
649: host = passend + 1;
650: *userend = *passend = '\0';
651:
652: if (EMPTYSTRING(user) || EMPTYSTRING(pass)) {
1.11 millert 653: bad_ftp_url:
1.31 itojun 654: warnx("Invalid URL: %s", argv[argpos]);
655: rval = argpos + 1;
656: continue;
657: }
1.8 millert 658: }
1.31 itojun 659:
660: #ifdef INET6
661: /* check [host]:port, or [host] */
662: if (host[0] == '[') {
663: cp = strchr(host, ']');
664: if (cp && (!dir || cp < dir)) {
665: if (cp + 1 == dir || cp[1] == ':') {
666: host++;
667: *cp++ = '\0';
668: } else
669: cp = NULL;
670: } else
671: cp = host;
1.25 itojun 672: } else
673: cp = host;
1.31 itojun 674: #else
675: cp = host;
1.25 itojun 676: #endif
1.31 itojun 677:
678: /* split off host[:port] if there is */
679: if (cp) {
680: portnum = strchr(cp, ':');
681: if (!portnum)
682: ;
683: else {
684: if (!dir)
685: ;
686: else if (portnum + 1 < dir) {
687: *portnum++ = '\0';
688: /*
689: * XXX should check if portnum
690: * is decimal number
691: */
692: } else {
693: /* empty portnum */
694: goto bad_ftp_url;
695: }
696: }
697: } else
698: portnum = NULL;
1.8 millert 699: } else { /* classic style `host:file' */
700: dir = strchr(host, ':');
701: }
1.1 millert 702: if (EMPTYSTRING(host)) {
703: rval = argpos + 1;
704: continue;
705: }
706:
707: /*
1.9 millert 708: * If dir is NULL, the file wasn't specified
1.1 millert 709: * (URL looked something like ftp://host)
710: */
1.8 millert 711: if (dir != NULL)
712: *dir++ = '\0';
1.1 millert 713:
714: /*
715: * Extract the file and (if present) directory name.
716: */
717: if (! EMPTYSTRING(dir)) {
1.8 millert 718: cp = strrchr(dir, '/');
1.1 millert 719: if (cp != NULL) {
720: *cp++ = '\0';
721: file = cp;
722: } else {
723: file = dir;
724: dir = NULL;
725: }
726: }
727: if (debug)
1.10 deraadt 728: fprintf(ttyout, "user %s:%s host %s port %s dir %s file %s\n",
1.8 millert 729: user, pass, host, portnum, dir, file);
1.1 millert 730:
731: /*
732: * Set up the connection if we don't have one.
733: */
734: if (strcmp(host, lasthost) != 0) {
1.8 millert 735: int oautologin;
736:
1.5 millert 737: (void)strcpy(lasthost, host);
1.1 millert 738: if (connected)
739: disconnect(0, NULL);
740: xargv[0] = __progname;
741: xargv[1] = host;
742: xargv[2] = NULL;
743: xargc = 2;
1.8 millert 744: if (! EMPTYSTRING(portnum)) {
1.1 millert 745: xargv[2] = portnum;
746: xargv[3] = NULL;
747: xargc = 3;
748: }
1.8 millert 749: oautologin = autologin;
750: if (user != NULL)
751: autologin = 0;
1.1 millert 752: setpeer(xargc, xargv);
1.8 millert 753: autologin = oautologin;
754: if ((connected == 0) ||
1.14 millert 755: ((connected == 1) && !login(host, user, pass))) {
1.8 millert 756: warnx("Can't connect or login to host `%s'",
757: host);
1.1 millert 758: rval = argpos + 1;
759: continue;
760: }
761:
762: /* Always use binary transfers. */
763: setbinary(0, NULL);
764: }
1.8 millert 765: /* cd back to '/' */
766: xargv[0] = "cd";
767: xargv[1] = "/";
768: xargv[2] = NULL;
769: cd(2, xargv);
770: if (! dirchange) {
771: rval = argpos + 1;
772: continue;
1.1 millert 773: }
774:
1.4 millert 775: dirhasglob = filehasglob = 0;
776: if (doglob) {
777: if (! EMPTYSTRING(dir) &&
778: strpbrk(dir, "*?[]{}") != NULL)
779: dirhasglob = 1;
780: if (! EMPTYSTRING(file) &&
781: strpbrk(file, "*?[]{}") != NULL)
782: filehasglob = 1;
783: }
784:
1.1 millert 785: /* Change directories, if necessary. */
1.4 millert 786: if (! EMPTYSTRING(dir) && !dirhasglob) {
1.1 millert 787: xargv[0] = "cd";
788: xargv[1] = dir;
789: xargv[2] = NULL;
790: cd(2, xargv);
791: if (! dirchange) {
792: rval = argpos + 1;
793: continue;
794: }
795: }
796:
797: if (EMPTYSTRING(file)) {
798: rval = -1;
799: continue;
800: }
801:
1.21 marc 802: if (verbose)
1.10 deraadt 803: fprintf(ttyout, "Retrieving %s/%s\n", dir ? dir : "", file);
1.1 millert 804:
1.4 millert 805: if (dirhasglob) {
806: snprintf(rempath, sizeof(rempath), "%s/%s", dir, file);
807: file = rempath;
808: }
809:
810: /* Fetch the file(s). */
1.10 deraadt 811: xargc = 2;
1.1 millert 812: xargv[0] = "get";
813: xargv[1] = file;
814: xargv[2] = NULL;
1.4 millert 815: if (dirhasglob || filehasglob) {
816: int ointeractive;
817:
818: ointeractive = interactive;
819: interactive = 0;
820: xargv[0] = "mget";
1.10 deraadt 821: mget(xargc, xargv);
1.5 millert 822: interactive = ointeractive;
1.10 deraadt 823: } else {
1.17 millert 824: if (outfile != NULL) {
825: xargv[2] = outfile;
826: xargv[3] = NULL;
1.10 deraadt 827: xargc++;
828: }
829: get(xargc, xargv);
830: }
1.1 millert 831:
1.4 millert 832: if ((code / 100) != COMPLETE)
1.1 millert 833: rval = argpos + 1;
834: }
835: if (connected && rval != -1)
836: disconnect(0, NULL);
837: return (rval);
1.25 itojun 838: }
839:
840: int
841: isurl(p)
842: const char *p;
843: {
1.27 millert 844:
1.26 deraadt 845: if (strncasecmp(p, FTP_URL, sizeof(FTP_URL) - 1) == 0 ||
846: strncasecmp(p, HTTP_URL, sizeof(HTTP_URL) - 1) == 0 ||
1.27 millert 847: strncasecmp(p, FILE_URL, sizeof(FILE_URL) - 1) == 0 ||
848: strstr(p, ":/"))
849: return (1);
850: return (0);
1.1 millert 851: }
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