Annotation of src/usr.bin/ftp/fetch.c, Revision 1.28
1.28 ! itojun 1: /* $OpenBSD: fetch.c,v 1.27 2000/01/09 05:14:38 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
1.28 ! itojun 41: static char rcsid[] = "$OpenBSD: fetch.c,v 1.27 2000/01/09 05:14:38 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;
1.22 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];
105: const char *savefile;
1.25 itojun 106: char *line, *proxy, *host, *port;
1.28 ! itojun 107: char *hosttail;
1.14 millert 108: volatile sig_t oldintr;
1.1 millert 109: off_t hashbytes;
1.25 itojun 110: char *cause = "unknown";
1.1 millert 111:
112: s = -1;
113: proxy = NULL;
1.14 millert 114: isftpurl = 0;
1.22 deraadt 115: isfileurl = 0;
1.1 millert 116:
1.14 millert 117: #ifdef __GNUC__ /* XXX: to shut up gcc warnings */
118: (void)&out;
119: (void)&proxy;
120: (void)&savefile;
121: #endif
122:
123: line = strdup(origline);
124: if (line == NULL)
125: errx(1, "Can't allocate memory to parse URL");
1.7 millert 126: if (strncasecmp(line, HTTP_URL, sizeof(HTTP_URL) - 1) == 0)
1.6 millert 127: host = line + sizeof(HTTP_URL) - 1;
1.14 millert 128: else if (strncasecmp(line, FTP_URL, sizeof(FTP_URL) - 1) == 0) {
1.6 millert 129: host = line + sizeof(FTP_URL) - 1;
1.14 millert 130: isftpurl = 1;
1.22 deraadt 131: } else if (strncasecmp(line, FILE_URL, sizeof(FILE_URL) - 1) == 0) {
132: host = line + sizeof(FILE_URL) - 1;
133: isfileurl = 1;
1.14 millert 134: } else
135: errx(1, "url_get: Invalid URL '%s'", line);
1.6 millert 136:
1.22 deraadt 137: if (isfileurl) {
138: path = host;
139: } else {
140: path = strchr(host, '/'); /* find path */
141: if (EMPTYSTRING(path)) {
142: if (isftpurl)
143: goto noftpautologin;
144: warnx("Invalid URL (no `/' after host): %s", origline);
145: goto cleanup_url_get;
146: }
147: *path++ = '\0';
148: if (EMPTYSTRING(path)) {
149: if (isftpurl)
150: goto noftpautologin;
151: warnx("Invalid URL (no file after host): %s", origline);
152: goto cleanup_url_get;
153: }
1.14 millert 154: }
1.1 millert 155:
1.17 millert 156: if (outfile)
157: savefile = outfile;
1.1 millert 158: else
1.17 millert 159: savefile = basename(path);
160:
1.14 millert 161: if (EMPTYSTRING(savefile)) {
162: if (isftpurl)
163: goto noftpautologin;
164: warnx("Invalid URL (no file after directory): %s", origline);
1.6 millert 165: goto cleanup_url_get;
1.14 millert 166: }
1.1 millert 167:
168: if (proxyenv != NULL) { /* use proxy */
169: proxy = strdup(proxyenv);
170: if (proxy == NULL)
1.14 millert 171: errx(1, "Can't allocate memory for proxy URL.");
1.7 millert 172: if (strncasecmp(proxy, HTTP_URL, sizeof(HTTP_URL) - 1) == 0)
1.6 millert 173: host = proxy + sizeof(HTTP_URL) - 1;
1.7 millert 174: else if (strncasecmp(proxy, FTP_URL, sizeof(FTP_URL) - 1) == 0)
1.6 millert 175: host = proxy + sizeof(FTP_URL) - 1;
176: else {
1.14 millert 177: warnx("Malformed proxy URL: %s", proxyenv);
1.6 millert 178: goto cleanup_url_get;
179: }
1.14 millert 180: if (EMPTYSTRING(host)) {
181: warnx("Malformed proxy URL: %s", proxyenv);
1.6 millert 182: goto cleanup_url_get;
1.14 millert 183: }
1.1 millert 184: *--path = '/'; /* add / back to real path */
185: path = strchr(host, '/'); /* remove trailing / on host */
186: if (! EMPTYSTRING(path))
187: *path++ = '\0';
188: path = line;
189: }
190:
1.22 deraadt 191: if (isfileurl) {
192: struct stat st;
193:
194: s = open(path, O_RDONLY);
195: if (s == -1) {
196: warn("Can't open file %s", path);
197: goto cleanup_url_get;
198: }
199:
200: if (fstat(s, &st) == -1)
201: filesize = -1;
202: else
203: filesize = st.st_size;
204:
205: /* Open the output file. */
206: if (strcmp(savefile, "-") != 0) {
207: out = open(savefile, O_CREAT | O_WRONLY | O_TRUNC, 0666);
208: if (out < 0) {
209: warn("Can't open %s", savefile);
210: goto cleanup_url_get;
211: }
212: } else
213: out = fileno(stdout);
214:
215: /* Trap signals */
216: oldintr = NULL;
217: if (setjmp(httpabort)) {
218: if (oldintr)
219: (void)signal(SIGINT, oldintr);
220: goto cleanup_url_get;
221: }
222: oldintr = signal(SIGINT, abortfile);
223:
224: bytes = 0;
225: hashbytes = mark;
226: progressmeter(-1);
227:
228: /* Finally, suck down the file. */
229: i = 0;
230: while ((len = read(s, buf, sizeof(buf))) > 0) {
231: bytes += len;
232: for (cp = buf; len > 0; len -= i, cp += i) {
233: if ((i = write(out, cp, len)) == -1) {
234: warn("Writing %s", savefile);
235: goto cleanup_url_get;
236: }
237: else if (i == 0)
238: break;
239: }
240: if (hash && !progress) {
241: while (bytes >= hashbytes) {
242: (void)putc('#', ttyout);
243: hashbytes += mark;
244: }
245: (void)fflush(ttyout);
246: }
247: }
248: if (hash && !progress && bytes > 0) {
249: if (bytes < mark)
250: (void)putc('#', ttyout);
251: (void)putc('\n', ttyout);
252: (void)fflush(ttyout);
253: }
254: if (len != 0) {
255: warn("Reading from file");
256: goto cleanup_url_get;
257: }
258: progressmeter(1);
259: if (verbose)
260: fputs("Successfully retrieved file.\n", ttyout);
261: (void)signal(SIGINT, oldintr);
262:
263: close(s);
264: if (out != fileno(stdout))
265: close(out);
266: if (proxy)
267: free(proxy);
268: free(line);
269: return (0);
270: }
271:
1.28 ! itojun 272: if (*host == '[' && (hosttail = strrchr(host, ']')) != NULL &&
! 273: (hosttail[1] == '\0' || hosttail[1] == ':')) {
! 274: host++;
! 275: *hosttail++ = '\0';
! 276: } else
! 277: hosttail = host;
! 278:
! 279: portnum = strrchr(hosttail, ':'); /* find portnum */
1.1 millert 280: if (portnum != NULL)
281: *portnum++ = '\0';
282:
283: if (debug)
1.10 deraadt 284: fprintf(ttyout, "host %s, port %s, path %s, save as %s.\n",
1.1 millert 285: host, portnum, path, savefile);
286:
1.25 itojun 287: memset(&hints, 0, sizeof(hints));
288: hints.ai_family = PF_UNSPEC;
289: hints.ai_socktype = SOCK_STREAM;
290: port = portnum ? portnum : httpport;
291: error = getaddrinfo(host, port, &hints, &res0);
292: if (error) {
293: warnx("%s: %s", gai_strerror(error), host);
294: goto cleanup_url_get;
1.1 millert 295: }
296:
1.25 itojun 297: s = -1;
298: for (res = res0; res; res = res->ai_next) {
299: getnameinfo(res->ai_addr, res->ai_addrlen, buf, sizeof(buf),
300: NULL, 0, NI_NUMERICHOST);
301: fprintf(ttyout, "Trying %s...\n", buf);
1.14 millert 302:
1.25 itojun 303: s = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
304: if (s == -1) {
305: cause = "socket";
306: continue;
1.1 millert 307: }
308:
1.25 itojun 309: again:
310: if (connect(s, res->ai_addr, res->ai_addrlen) < 0) {
311: if (errno == EINTR)
312: goto again;
313: close(s);
314: s = -1;
315: cause = "connect";
1.19 deraadt 316: continue;
317: }
1.25 itojun 318:
319: break;
320: }
321: freeaddrinfo(res0);
322: if (s < 0) {
323: warn(cause);
1.6 millert 324: goto cleanup_url_get;
1.1 millert 325: }
326:
327: /*
328: * Construct and send the request. We're expecting a return
329: * status of "200". Proxy requests don't want leading /.
330: */
1.23 deraadt 331: if (verbose) {
332: if (!proxy)
333: fprintf(ttyout, "Requesting %s\n", origline);
334: else
335: fprintf(ttyout, "Requesting %s (via %s)\n",
336: origline, proxyenv);
337: }
1.28 ! itojun 338: if (strchr(host, ':')) {
! 339: snprintf(buf, sizeof(buf),
! 340: "GET %s%s HTTP/1.0\r\nHost: [%s]:%s\r\n\r\n",
! 341: proxy ? "" : "/", path, host, port);
! 342: } else {
! 343: snprintf(buf, sizeof(buf),
! 344: "GET %s%s HTTP/1.0\r\nHost: %s:%s\r\n\r\n",
! 345: proxy ? "" : "/", path, host, port);
! 346: }
1.14 millert 347: len = strlen(buf);
348: if (write(s, buf, len) < len) {
349: warn("Writing HTTP request");
1.6 millert 350: goto cleanup_url_get;
1.1 millert 351: }
352: memset(buf, 0, sizeof(buf));
1.14 millert 353: for (cp = buf; cp < buf + sizeof(buf); ) {
1.1 millert 354: if (read(s, cp, 1) != 1)
355: goto improper;
1.4 millert 356: if (*cp == '\r')
357: continue;
1.1 millert 358: if (*cp == '\n')
359: break;
1.14 millert 360: cp++;
1.1 millert 361: }
1.14 millert 362: buf[sizeof(buf) - 1] = '\0'; /* sanity */
1.1 millert 363: cp = strchr(buf, ' ');
364: if (cp == NULL)
365: goto improper;
366: else
367: cp++;
368: if (strncmp(cp, "200", 3)) {
369: warnx("Error retrieving file: %s", cp);
1.6 millert 370: goto cleanup_url_get;
1.1 millert 371: }
372:
373: /*
374: * Read the rest of the header.
375: */
376: memset(buf, 0, sizeof(buf));
377: c = '\0';
1.14 millert 378: for (cp = buf; cp < buf + sizeof(buf); ) {
1.1 millert 379: if (read(s, cp, 1) != 1)
380: goto improper;
1.4 millert 381: if (*cp == '\r')
382: continue;
1.1 millert 383: if (*cp == '\n' && c == '\n')
384: break;
385: c = *cp;
1.14 millert 386: cp++;
1.1 millert 387: }
1.14 millert 388: buf[sizeof(buf) - 1] = '\0'; /* sanity */
1.1 millert 389:
1.9 millert 390: /* Look for the "Content-length: " header. */
1.1 millert 391: #define CONTENTLEN "Content-Length: "
392: for (cp = buf; *cp != '\0'; cp++) {
393: if (tolower(*cp) == 'c' &&
394: strncasecmp(cp, CONTENTLEN, sizeof(CONTENTLEN) - 1) == 0)
395: break;
396: }
1.13 deraadt 397: if (*cp != '\0') {
398: cp += sizeof(CONTENTLEN) - 1;
1.14 millert 399: ep = strchr(cp, '\n');
400: if (ep == NULL)
1.13 deraadt 401: goto improper;
402: else
1.14 millert 403: *ep = '\0';
404: filesize = strtol(cp, &ep, 10);
405: if (filesize < 1 || *ep != '\0')
1.13 deraadt 406: goto improper;
407: } else
408: filesize = -1;
1.1 millert 409:
1.17 millert 410: /* Open the output file. */
411: if (strcmp(savefile, "-") != 0) {
1.10 deraadt 412: out = open(savefile, O_CREAT | O_WRONLY | O_TRUNC, 0666);
413: if (out < 0) {
414: warn("Can't open %s", savefile);
415: goto cleanup_url_get;
416: }
417: } else
1.17 millert 418: out = fileno(stdout);
1.1 millert 419:
420: /* Trap signals */
421: oldintr = NULL;
422: if (setjmp(httpabort)) {
423: if (oldintr)
1.2 millert 424: (void)signal(SIGINT, oldintr);
1.6 millert 425: goto cleanup_url_get;
1.1 millert 426: }
427: oldintr = signal(SIGINT, aborthttp);
428:
429: bytes = 0;
430: hashbytes = mark;
431: progressmeter(-1);
432:
433: /* Finally, suck down the file. */
434: i = 0;
435: while ((len = read(s, buf, sizeof(buf))) > 0) {
436: bytes += len;
437: for (cp = buf; len > 0; len -= i, cp += i) {
438: if ((i = write(out, cp, len)) == -1) {
439: warn("Writing %s", savefile);
1.6 millert 440: goto cleanup_url_get;
1.1 millert 441: }
442: else if (i == 0)
443: break;
444: }
445: if (hash && !progress) {
446: while (bytes >= hashbytes) {
1.10 deraadt 447: (void)putc('#', ttyout);
1.1 millert 448: hashbytes += mark;
449: }
1.10 deraadt 450: (void)fflush(ttyout);
1.1 millert 451: }
452: }
453: if (hash && !progress && bytes > 0) {
454: if (bytes < mark)
1.10 deraadt 455: (void)putc('#', ttyout);
456: (void)putc('\n', ttyout);
457: (void)fflush(ttyout);
1.1 millert 458: }
459: if (len != 0) {
460: warn("Reading from socket");
1.6 millert 461: goto cleanup_url_get;
1.1 millert 462: }
463: progressmeter(1);
1.24 deraadt 464: if (filesize != -1 && len == 0 && bytes != filesize) {
465: if (verbose)
466: fputs("Read short file.\n", ttyout);
467: goto cleanup_url_get;
468: }
469:
1.1 millert 470: if (verbose)
1.10 deraadt 471: fputs("Successfully retrieved file.\n", ttyout);
1.2 millert 472: (void)signal(SIGINT, oldintr);
1.1 millert 473:
474: close(s);
1.17 millert 475: if (out != fileno(stdout))
1.10 deraadt 476: close(out);
1.1 millert 477: if (proxy)
478: free(proxy);
1.14 millert 479: free(line);
1.2 millert 480: return (0);
1.1 millert 481:
1.14 millert 482: noftpautologin:
483: warnx(
484: "Auto-login using ftp URLs isn't supported when using $ftp_proxy");
485: goto cleanup_url_get;
486:
1.1 millert 487: improper:
1.8 millert 488: warnx("Improper response from %s", host);
1.14 millert 489:
1.6 millert 490: cleanup_url_get:
1.1 millert 491: if (s != -1)
492: close(s);
493: if (proxy)
494: free(proxy);
1.14 millert 495: free(line);
1.2 millert 496: return (-1);
1.1 millert 497: }
498:
499: /*
500: * Abort a http retrieval
501: */
502: void
1.3 millert 503: aborthttp(notused)
504: int notused;
1.1 millert 505: {
506:
507: alarmtimer(0);
1.10 deraadt 508: fputs("\nhttp fetch aborted.\n", ttyout);
509: (void)fflush(ttyout);
1.1 millert 510: longjmp(httpabort, 1);
511: }
512:
513: /*
1.22 deraadt 514: * Abort a http retrieval
515: */
516: void
517: abortfile(notused)
518: int notused;
519: {
520:
521: alarmtimer(0);
522: fputs("\nfile fetch aborted.\n", ttyout);
523: (void)fflush(ttyout);
524: longjmp(httpabort, 1);
525: }
526:
527: /*
1.1 millert 528: * Retrieve multiple files from the command line, transferring
529: * files of the form "host:path", "ftp://host/path" using the
530: * ftp protocol, and files of the form "http://host/path" using
531: * the http protocol.
1.2 millert 532: * If path has a trailing "/", then return (-1);
1.1 millert 533: * the path will be cd-ed into and the connection remains open,
534: * and the function will return -1 (to indicate the connection
535: * is alive).
536: * If an error occurs the return value will be the offset+1 in
537: * argv[] of the file that caused a problem (i.e, argv[x]
538: * returns x+1)
539: * Otherwise, 0 is returned if all files retrieved successfully.
540: */
541: int
1.17 millert 542: auto_fetch(argc, argv, outfile)
1.1 millert 543: int argc;
544: char *argv[];
1.17 millert 545: char *outfile;
1.1 millert 546: {
547: static char lasthost[MAXHOSTNAMELEN];
548: char *xargv[5];
549: char *cp, *line, *host, *dir, *file, *portnum;
1.8 millert 550: char *user, *pass;
1.6 millert 551: char *ftpproxy, *httpproxy;
1.14 millert 552: int rval, xargc;
553: volatile int argpos;
1.4 millert 554: int dirhasglob, filehasglob;
1.14 millert 555: char rempath[MAXPATHLEN];
1.1 millert 556:
557: argpos = 0;
558:
559: if (setjmp(toplevel)) {
560: if (connected)
561: disconnect(0, NULL);
1.2 millert 562: return (argpos + 1);
1.1 millert 563: }
1.3 millert 564: (void)signal(SIGINT, (sig_t)intr);
565: (void)signal(SIGPIPE, (sig_t)lostpeer);
1.1 millert 566:
1.6 millert 567: ftpproxy = getenv(FTP_PROXY);
568: httpproxy = getenv(HTTP_PROXY);
569:
1.1 millert 570: /*
571: * Loop through as long as there's files to fetch.
572: */
573: for (rval = 0; (rval == 0) && (argpos < argc); free(line), argpos++) {
574: if (strchr(argv[argpos], ':') == NULL)
575: break;
1.8 millert 576: host = dir = file = portnum = user = pass = NULL;
1.1 millert 577:
578: /*
579: * We muck with the string, so we make a copy.
580: */
581: line = strdup(argv[argpos]);
582: if (line == NULL)
583: errx(1, "Can't allocate memory for auto-fetch.");
584:
585: /*
586: * Try HTTP URL-style arguments first.
587: */
1.22 deraadt 588: if (strncasecmp(line, HTTP_URL, sizeof(HTTP_URL) - 1) == 0 ||
589: strncasecmp(line, FILE_URL, sizeof(FILE_URL) - 1) == 0) {
1.17 millert 590: if (url_get(line, httpproxy, outfile) == -1)
1.1 millert 591: rval = argpos + 1;
592: continue;
593: }
594:
595: /*
1.6 millert 596: * Try FTP URL-style arguments next. If ftpproxy is
597: * set, use url_get() instead of standard ftp.
598: * Finally, try host:file.
1.1 millert 599: */
600: host = line;
1.7 millert 601: if (strncasecmp(line, FTP_URL, sizeof(FTP_URL) - 1) == 0) {
1.6 millert 602: if (ftpproxy) {
1.17 millert 603: if (url_get(line, ftpproxy, outfile) == -1)
1.6 millert 604: rval = argpos + 1;
605: continue;
606: }
1.1 millert 607: host += sizeof(FTP_URL) - 1;
1.8 millert 608: dir = strchr(host, '/');
1.1 millert 609:
1.8 millert 610: /* Look for [user:pass@]host[:port] */
1.11 millert 611: pass = strpbrk(host, ":@/");
1.9 millert 612: if (pass == NULL || *pass == '/') {
1.11 millert 613: pass = NULL;
1.8 millert 614: goto parsed_url;
1.9 millert 615: }
1.11 millert 616: if (pass == host || *pass == '@') {
617: bad_ftp_url:
1.14 millert 618: warnx("Invalid URL: %s", argv[argpos]);
1.8 millert 619: rval = argpos + 1;
620: continue;
621: }
622: *pass++ = '\0';
1.12 millert 623: /* XXX - assumes no '@' in pathname */
624: if ((cp = strrchr(pass, '@')) == NULL)
625: cp = strpbrk(pass, ":@/");
1.8 millert 626: if (cp == NULL || *cp == '/') {
627: portnum = pass;
1.11 millert 628: pass = NULL;
1.8 millert 629: goto parsed_url;
630: }
1.11 millert 631: if (EMPTYSTRING(cp) || *cp == ':')
632: goto bad_ftp_url;
1.8 millert 633: *cp++ = '\0';
1.11 millert 634: user = host;
635: if (EMPTYSTRING(user))
636: goto bad_ftp_url;
1.8 millert 637: host = cp;
1.25 itojun 638:
639: #if 0
640: /* look for IPv6 address URL */
641: if (host == '[' && (cp = strrchr(host, ']'))) {
642: host++;
643: *cp++ = '\0';
644: } else
645: cp = host;
646: #endif
647:
648: portnum = strrchr(cp, ':');
1.1 millert 649: if (portnum != NULL)
650: *portnum++ = '\0';
1.8 millert 651: } else { /* classic style `host:file' */
652: dir = strchr(host, ':');
653: }
1.16 millert 654: parsed_url:
1.1 millert 655: if (EMPTYSTRING(host)) {
656: rval = argpos + 1;
657: continue;
658: }
659:
660: /*
1.9 millert 661: * If dir is NULL, the file wasn't specified
1.1 millert 662: * (URL looked something like ftp://host)
663: */
1.8 millert 664: if (dir != NULL)
665: *dir++ = '\0';
1.1 millert 666:
667: /*
668: * Extract the file and (if present) directory name.
669: */
670: if (! EMPTYSTRING(dir)) {
1.8 millert 671: cp = strrchr(dir, '/');
1.1 millert 672: if (cp != NULL) {
673: *cp++ = '\0';
674: file = cp;
675: } else {
676: file = dir;
677: dir = NULL;
678: }
679: }
680: if (debug)
1.10 deraadt 681: fprintf(ttyout, "user %s:%s host %s port %s dir %s file %s\n",
1.8 millert 682: user, pass, host, portnum, dir, file);
1.1 millert 683:
684: /*
685: * Set up the connection if we don't have one.
686: */
687: if (strcmp(host, lasthost) != 0) {
1.8 millert 688: int oautologin;
689:
1.5 millert 690: (void)strcpy(lasthost, host);
1.1 millert 691: if (connected)
692: disconnect(0, NULL);
693: xargv[0] = __progname;
694: xargv[1] = host;
695: xargv[2] = NULL;
696: xargc = 2;
1.8 millert 697: if (! EMPTYSTRING(portnum)) {
1.1 millert 698: xargv[2] = portnum;
699: xargv[3] = NULL;
700: xargc = 3;
701: }
1.8 millert 702: oautologin = autologin;
703: if (user != NULL)
704: autologin = 0;
1.1 millert 705: setpeer(xargc, xargv);
1.8 millert 706: autologin = oautologin;
707: if ((connected == 0) ||
1.14 millert 708: ((connected == 1) && !login(host, user, pass))) {
1.8 millert 709: warnx("Can't connect or login to host `%s'",
710: host);
1.1 millert 711: rval = argpos + 1;
712: continue;
713: }
714:
715: /* Always use binary transfers. */
716: setbinary(0, NULL);
717: }
1.8 millert 718: /* cd back to '/' */
719: xargv[0] = "cd";
720: xargv[1] = "/";
721: xargv[2] = NULL;
722: cd(2, xargv);
723: if (! dirchange) {
724: rval = argpos + 1;
725: continue;
1.1 millert 726: }
727:
1.4 millert 728: dirhasglob = filehasglob = 0;
729: if (doglob) {
730: if (! EMPTYSTRING(dir) &&
731: strpbrk(dir, "*?[]{}") != NULL)
732: dirhasglob = 1;
733: if (! EMPTYSTRING(file) &&
734: strpbrk(file, "*?[]{}") != NULL)
735: filehasglob = 1;
736: }
737:
1.1 millert 738: /* Change directories, if necessary. */
1.4 millert 739: if (! EMPTYSTRING(dir) && !dirhasglob) {
1.1 millert 740: xargv[0] = "cd";
741: xargv[1] = dir;
742: xargv[2] = NULL;
743: cd(2, xargv);
744: if (! dirchange) {
745: rval = argpos + 1;
746: continue;
747: }
748: }
749:
750: if (EMPTYSTRING(file)) {
751: rval = -1;
752: continue;
753: }
754:
1.21 marc 755: if (verbose)
1.10 deraadt 756: fprintf(ttyout, "Retrieving %s/%s\n", dir ? dir : "", file);
1.1 millert 757:
1.4 millert 758: if (dirhasglob) {
759: snprintf(rempath, sizeof(rempath), "%s/%s", dir, file);
760: file = rempath;
761: }
762:
763: /* Fetch the file(s). */
1.10 deraadt 764: xargc = 2;
1.1 millert 765: xargv[0] = "get";
766: xargv[1] = file;
767: xargv[2] = NULL;
1.4 millert 768: if (dirhasglob || filehasglob) {
769: int ointeractive;
770:
771: ointeractive = interactive;
772: interactive = 0;
773: xargv[0] = "mget";
1.10 deraadt 774: mget(xargc, xargv);
1.5 millert 775: interactive = ointeractive;
1.10 deraadt 776: } else {
1.17 millert 777: if (outfile != NULL) {
778: xargv[2] = outfile;
779: xargv[3] = NULL;
1.10 deraadt 780: xargc++;
781: }
782: get(xargc, xargv);
783: }
1.1 millert 784:
1.4 millert 785: if ((code / 100) != COMPLETE)
1.1 millert 786: rval = argpos + 1;
787: }
788: if (connected && rval != -1)
789: disconnect(0, NULL);
790: return (rval);
1.25 itojun 791: }
792:
793: int
794: isurl(p)
795: const char *p;
796: {
1.27 millert 797:
1.26 deraadt 798: if (strncasecmp(p, FTP_URL, sizeof(FTP_URL) - 1) == 0 ||
799: strncasecmp(p, HTTP_URL, sizeof(HTTP_URL) - 1) == 0 ||
1.27 millert 800: strncasecmp(p, FILE_URL, sizeof(FILE_URL) - 1) == 0 ||
801: strstr(p, ":/"))
802: return (1);
803: return (0);
1.1 millert 804: }
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