Annotation of src/usr.bin/ftp/fetch.c, Revision 1.116
1.116 ! lukem 1: /* $NetBSD: fetch.c,v 1.115 2000/06/05 09:22:52 lukem Exp $ */
1.1 lukem 2:
3: /*-
1.110 lukem 4: * Copyright (c) 1997-2000 The NetBSD Foundation, Inc.
1.1 lukem 5: * All rights reserved.
6: *
7: * This code is derived from software contributed to The NetBSD Foundation
1.54 lukem 8: * by Luke Mewburn.
1.1 lukem 9: *
1.114 lukem 10: * This code is derived from software contributed to The NetBSD Foundation
11: * by Scott Aaron Bamford.
12: *
1.1 lukem 13: * Redistribution and use in source and binary forms, with or without
14: * modification, are permitted provided that the following conditions
15: * are met:
16: * 1. Redistributions of source code must retain the above copyright
17: * notice, this list of conditions and the following disclaimer.
18: * 2. Redistributions in binary form must reproduce the above copyright
19: * notice, this list of conditions and the following disclaimer in the
20: * documentation and/or other materials provided with the distribution.
21: * 3. All advertising materials mentioning features or use of this software
22: * must display the following acknowledgement:
1.84 lukem 23: * This product includes software developed by the NetBSD
24: * Foundation, Inc. and its contributors.
1.1 lukem 25: * 4. Neither the name of The NetBSD Foundation nor the names of its
26: * contributors may be used to endorse or promote products derived
27: * from this software without specific prior written permission.
28: *
29: * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
30: * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
31: * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
1.14 lukem 32: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
33: * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
1.1 lukem 34: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
35: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
36: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
37: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
38: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
39: * POSSIBILITY OF SUCH DAMAGE.
40: */
41:
1.12 lukem 42: #include <sys/cdefs.h>
1.1 lukem 43: #ifndef lint
1.116 ! lukem 44: __RCSID("$NetBSD: fetch.c,v 1.115 2000/06/05 09:22:52 lukem Exp $");
1.1 lukem 45: #endif /* not lint */
46:
47: /*
48: * FTP User Program -- Command line file retrieval
49: */
50:
51: #include <sys/types.h>
52: #include <sys/param.h>
53: #include <sys/socket.h>
1.30 lukem 54: #include <sys/stat.h>
1.32 lukem 55: #include <sys/time.h>
1.1 lukem 56:
57: #include <netinet/in.h>
58:
1.2 lukem 59: #include <arpa/ftp.h>
1.1 lukem 60: #include <arpa/inet.h>
61:
62: #include <ctype.h>
63: #include <err.h>
1.22 lukem 64: #include <errno.h>
1.1 lukem 65: #include <netdb.h>
66: #include <fcntl.h>
67: #include <stdio.h>
68: #include <stdlib.h>
69: #include <string.h>
70: #include <unistd.h>
1.57 christos 71: #include <time.h>
1.24 lukem 72: #include <util.h>
1.1 lukem 73:
74: #include "ftp_var.h"
1.100 lukem 75: #include "version.h"
1.1 lukem 76:
1.27 lukem 77: typedef enum {
78: UNKNOWN_URL_T=-1,
79: HTTP_URL_T,
80: FTP_URL_T,
1.53 lukem 81: FILE_URL_T,
82: CLASSIC_URL_T
1.27 lukem 83: } url_t;
84:
1.111 lukem 85: void aborthttp(int);
86: static int auth_url(const char *, char **, const char *, const char *);
87: static void base64_encode(const char *, size_t, char *);
88: static int go_fetch(const char *);
89: static int fetch_ftp(const char *);
90: static int fetch_url(const char *, const char *, char *, char *);
91: static int parse_url(const char *, const char *, url_t *, char **,
92: char **, char **, char **, in_port_t *, char **);
93: static void url_decode(char *);
1.12 lukem 94:
1.42 lukem 95: static int redirect_loop;
96:
1.12 lukem 97:
1.25 lukem 98: #define ABOUT_URL "about:" /* propaganda */
99: #define FILE_URL "file://" /* file URL prefix */
1.1 lukem 100: #define FTP_URL "ftp://" /* ftp URL prefix */
101: #define HTTP_URL "http://" /* http URL prefix */
102:
103:
1.27 lukem 104: /*
1.44 lukem 105: * Generate authorization response based on given authentication challenge.
106: * Returns -1 if an error occurred, otherwise 0.
107: * Sets response to a malloc(3)ed string; caller should free.
108: */
109: static int
1.111 lukem 110: auth_url(const char *challenge, char **response, const char *guser,
111: const char *gpass)
1.44 lukem 112: {
113: char *cp, *ep, *clear, *line, *realm, *scheme;
1.82 lukem 114: char user[BUFSIZ], *pass;
115: int rval;
116: size_t len, clen, rlen;
1.44 lukem 117:
118: *response = NULL;
119: clear = realm = scheme = NULL;
120: rval = -1;
121: line = xstrdup(challenge);
122: cp = line;
123:
124: if (debug)
125: fprintf(ttyout, "auth_url: challenge `%s'\n", challenge);
126:
127: scheme = strsep(&cp, " ");
1.91 lukem 128: #define SCHEME_BASIC "Basic"
1.44 lukem 129: if (strncasecmp(scheme, SCHEME_BASIC, sizeof(SCHEME_BASIC) - 1) != 0) {
130: warnx("Unsupported WWW Authentication challenge - `%s'",
131: challenge);
132: goto cleanup_auth_url;
133: }
134: cp += strspn(cp, " ");
135:
1.91 lukem 136: #define REALM "realm=\""
1.44 lukem 137: if (strncasecmp(cp, REALM, sizeof(REALM) - 1) == 0)
138: cp += sizeof(REALM) - 1;
139: else {
140: warnx("Unsupported WWW Authentication challenge - `%s'",
141: challenge);
142: goto cleanup_auth_url;
143: }
144: if ((ep = strchr(cp, '\"')) != NULL) {
145: size_t len = ep - cp;
146:
147: realm = (char *)xmalloc(len + 1);
1.78 lukem 148: (void)strlcpy(realm, cp, len + 1);
1.44 lukem 149: } else {
150: warnx("Unsupported WWW Authentication challenge - `%s'",
151: challenge);
152: goto cleanup_auth_url;
153: }
154:
1.78 lukem 155: if (guser != NULL)
156: (void)strlcpy(user, guser, sizeof(user));
157: else {
1.54 lukem 158: fprintf(ttyout, "Username for `%s': ", realm);
159: (void)fflush(ttyout);
1.90 lukem 160: if (fgets(user, sizeof(user) - 1, stdin) == NULL) {
161: clearerr(stdin);
1.54 lukem 162: goto cleanup_auth_url;
1.90 lukem 163: }
1.54 lukem 164: user[strlen(user) - 1] = '\0';
165: }
166: if (gpass != NULL)
167: pass = (char *)gpass;
168: else
169: pass = getpass("Password: ");
1.44 lukem 170:
1.72 lukem 171: clen = strlen(user) + strlen(pass) + 2; /* user + ":" + pass + "\0" */
172: clear = (char *)xmalloc(clen);
1.78 lukem 173: (void)strlcpy(clear, user, clen);
174: (void)strlcat(clear, ":", clen);
175: (void)strlcat(clear, pass, clen);
1.54 lukem 176: if (gpass == NULL)
1.80 lukem 177: memset(pass, 0, strlen(pass));
1.44 lukem 178:
1.64 lukem 179: /* scheme + " " + enc + "\0" */
1.74 lukem 180: rlen = strlen(scheme) + 1 + (clen + 2) * 4 / 3 + 1;
1.72 lukem 181: *response = (char *)xmalloc(rlen);
1.78 lukem 182: (void)strlcpy(*response, scheme, rlen);
1.72 lukem 183: len = strlcat(*response, " ", rlen);
184: base64_encode(clear, clen, *response + len);
1.80 lukem 185: memset(clear, 0, clen);
1.44 lukem 186: rval = 0;
187:
188: cleanup_auth_url:
189: FREEPTR(clear);
190: FREEPTR(line);
191: FREEPTR(realm);
192: return (rval);
193: }
194:
195: /*
196: * Encode len bytes starting at clear using base64 encoding into encoded,
197: * which should be at least ((len + 2) * 4 / 3 + 1) in size.
198: */
199: void
1.111 lukem 200: base64_encode(const char *clear, size_t len, char *encoded)
1.44 lukem 201: {
202: static const char enc[] =
203: "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
1.82 lukem 204: char *cp;
205: int i;
1.44 lukem 206:
207: cp = encoded;
208: for (i = 0; i < len; i += 3) {
209: *(cp++) = enc[((clear[i + 0] >> 2))];
210: *(cp++) = enc[((clear[i + 0] << 4) & 0x30)
211: | ((clear[i + 1] >> 4) & 0x0f)];
212: *(cp++) = enc[((clear[i + 1] << 2) & 0x3c)
213: | ((clear[i + 2] >> 6) & 0x03)];
214: *(cp++) = enc[((clear[i + 2] ) & 0x3f)];
215: }
216: *cp = '\0';
217: while (i-- > len)
218: *(--cp) = '=';
219: }
220:
1.50 lukem 221: /*
222: * Decode %xx escapes in given string, `in-place'.
223: */
224: static void
1.111 lukem 225: url_decode(char *url)
1.50 lukem 226: {
227: unsigned char *p, *q;
228:
229: if (EMPTYSTRING(url))
230: return;
1.75 lukem 231: p = q = (unsigned char *)url;
1.50 lukem 232:
1.91 lukem 233: #define HEXTOINT(x) (x - (isdigit(x) ? '0' : (islower(x) ? 'a' : 'A') - 10))
1.50 lukem 234: while (*p) {
235: if (p[0] == '%'
236: && p[1] && isxdigit((unsigned char)p[1])
237: && p[2] && isxdigit((unsigned char)p[2])) {
238: *q++ = HEXTOINT(p[1]) * 16 + HEXTOINT(p[2]);
239: p+=3;
240: } else
241: *q++ = *p++;
242: }
243: *q = '\0';
244: }
245:
1.44 lukem 246:
247: /*
1.27 lukem 248: * Parse URL of form:
1.63 lukem 249: * <type>://[<user>[:<password>@]]<host>[:<port>][/<path>]
1.27 lukem 250: * Returns -1 if a parse error occurred, otherwise 0.
1.50 lukem 251: * It's the caller's responsibility to url_decode() the returned
252: * user, pass and path.
1.63 lukem 253: *
1.27 lukem 254: * Sets type to url_t, each of the given char ** pointers to a
255: * malloc(3)ed strings of the relevant section, and port to
1.41 lukem 256: * the number given, or ftpport if ftp://, or httpport if http://.
1.52 lukem 257: *
1.63 lukem 258: * If <host> is surrounded by `[' and ']', it's parsed as an
1.102 lukem 259: * IPv6 address (as per RFC 2732).
1.63 lukem 260: *
261: * XXX: this is not totally RFC 1738 compliant; <path> will have the
1.53 lukem 262: * leading `/' unless it's an ftp:// URL, as this makes things easier
263: * for file:// and http:// URLs. ftp:// URLs have the `/' between the
264: * host and the url-path removed, but any additional leading slashes
265: * in the url-path are retained (because they imply that we should
266: * later do "CWD" with a null argument).
267: *
268: * Examples:
269: * input url output path
270: * --------- -----------
1.63 lukem 271: * "ftp://host" NULL
272: * "http://host/" NULL
273: * "file://host/dir/file" "dir/file"
274: * "ftp://host/" ""
275: * "ftp://host//" NULL
1.53 lukem 276: * "ftp://host//dir/file" "/dir/file"
1.27 lukem 277: */
278: static int
1.111 lukem 279: parse_url(const char *url, const char *desc, url_t *type,
280: char **user, char **pass, char **host, char **port,
281: in_port_t *portnum, char **path)
1.27 lukem 282: {
1.82 lukem 283: const char *origurl;
284: char *cp, *ep, *thost, *tport;
285: size_t len;
1.27 lukem 286:
287: if (url == NULL || desc == NULL || type == NULL || user == NULL
1.82 lukem 288: || pass == NULL || host == NULL || port == NULL || portnum == NULL
289: || path == NULL)
1.27 lukem 290: errx(1, "parse_url: invoked with NULL argument!");
291:
1.82 lukem 292: origurl = url;
1.27 lukem 293: *type = UNKNOWN_URL_T;
1.63 lukem 294: *user = *pass = *host = *port = *path = NULL;
1.82 lukem 295: *portnum = 0;
1.63 lukem 296: tport = NULL;
1.27 lukem 297:
298: if (strncasecmp(url, HTTP_URL, sizeof(HTTP_URL) - 1) == 0) {
299: url += sizeof(HTTP_URL) - 1;
300: *type = HTTP_URL_T;
1.82 lukem 301: *portnum = HTTP_PORT;
1.63 lukem 302: tport = httpport;
1.27 lukem 303: } else if (strncasecmp(url, FTP_URL, sizeof(FTP_URL) - 1) == 0) {
304: url += sizeof(FTP_URL) - 1;
305: *type = FTP_URL_T;
1.82 lukem 306: *portnum = FTP_PORT;
1.63 lukem 307: tport = ftpport;
1.27 lukem 308: } else if (strncasecmp(url, FILE_URL, sizeof(FILE_URL) - 1) == 0) {
309: url += sizeof(FILE_URL) - 1;
310: *type = FILE_URL_T;
311: } else {
312: warnx("Invalid %s `%s'", desc, url);
313: cleanup_parse_url:
314: FREEPTR(*user);
315: FREEPTR(*pass);
316: FREEPTR(*host);
1.60 itojun 317: FREEPTR(*port);
1.27 lukem 318: FREEPTR(*path);
319: return (-1);
320: }
321:
322: if (*url == '\0')
323: return (0);
324:
325: /* find [user[:pass]@]host[:port] */
326: ep = strchr(url, '/');
327: if (ep == NULL)
328: thost = xstrdup(url);
329: else {
1.50 lukem 330: len = ep - url;
1.27 lukem 331: thost = (char *)xmalloc(len + 1);
1.78 lukem 332: (void)strlcpy(thost, url, len + 1);
1.53 lukem 333: if (*type == FTP_URL_T) /* skip first / for ftp URLs */
334: ep++;
1.27 lukem 335: *path = xstrdup(ep);
336: }
337:
1.63 lukem 338: cp = strchr(thost, '@'); /* look for user[:pass]@ in URLs */
1.54 lukem 339: if (cp != NULL) {
340: if (*type == FTP_URL_T)
341: anonftp = 0; /* disable anonftp */
1.27 lukem 342: *user = thost;
343: *cp = '\0';
1.63 lukem 344: thost = xstrdup(cp + 1);
1.27 lukem 345: cp = strchr(*user, ':');
346: if (cp != NULL) {
347: *cp = '\0';
348: *pass = xstrdup(cp + 1);
349: }
1.63 lukem 350: }
351:
352: #ifdef INET6
353: /*
354: * Check if thost is an encoded IPv6 address, as per
1.102 lukem 355: * RFC 2732:
1.63 lukem 356: * `[' ipv6-address ']'
357: */
358: if (*thost == '[') {
359: cp = thost + 1;
360: if ((ep = strchr(cp, ']')) == NULL ||
1.106 itojun 361: (ep[1] != '\0' && ep[1] != ':')) {
1.63 lukem 362: warnx("Invalid address `%s' in %s `%s'",
1.82 lukem 363: thost, desc, origurl);
1.63 lukem 364: goto cleanup_parse_url;
365: }
1.103 lukem 366: len = ep - cp; /* change `[xyz]' -> `xyz' */
1.63 lukem 367: memmove(thost, thost + 1, len);
368: thost[len] = '\0';
369: if (! isipv6addr(thost)) {
370: warnx("Invalid IPv6 address `%s' in %s `%s'",
1.82 lukem 371: thost, desc, origurl);
1.63 lukem 372: goto cleanup_parse_url;
373: }
374: cp = ep + 1;
375: if (*cp == ':')
376: cp++;
377: else
378: cp = NULL;
1.27 lukem 379: } else
1.63 lukem 380: #endif /* INET6 */
381: if ((cp = strchr(thost, ':')) != NULL)
382: *cp++ = '\0';
383: *host = thost;
1.60 itojun 384:
1.27 lukem 385: /* look for [:port] */
386: if (cp != NULL) {
1.82 lukem 387: long nport;
1.27 lukem 388:
1.63 lukem 389: nport = strtol(cp, &ep, 10);
1.82 lukem 390: if (*ep != '\0' && ep == cp) {
391: struct servent *svp;
392:
393: svp = getservbyname(cp, "tcp");
394: if (svp == NULL) {
395: warnx("Unknown port `%s' in %s `%s'",
396: cp, desc, origurl);
397: goto cleanup_parse_url;
398: } else
399: nport = ntohs(svp->s_port);
400: } else if (nport < 1 || nport > MAX_IN_PORT_T || *ep != '\0') {
401: warnx("Invalid port `%s' in %s `%s'", cp, desc,
402: origurl);
1.27 lukem 403: goto cleanup_parse_url;
404: }
1.82 lukem 405: *portnum = nport;
1.63 lukem 406: tport = cp;
1.27 lukem 407: }
1.82 lukem 408:
1.95 lukem 409: if (tport != NULL)
1.63 lukem 410: *port = xstrdup(tport);
1.81 lukem 411: if (*path == NULL)
412: *path = xstrdup("");
1.27 lukem 413:
414: if (debug)
415: fprintf(ttyout,
1.107 itojun 416: "parse_url: user `%s' pass `%s' host %s port %s(%d) "
417: "path `%s'\n",
1.53 lukem 418: *user ? *user : "<null>", *pass ? *pass : "<null>",
1.60 itojun 419: *host ? *host : "<null>", *port ? *port : "<null>",
1.82 lukem 420: *portnum ? *portnum : -1, *path ? *path : "<null>");
1.27 lukem 421:
422: return (0);
423: }
424:
1.89 lukem 425: sigjmp_buf httpabort;
1.2 lukem 426:
1.1 lukem 427: /*
1.50 lukem 428: * Retrieve URL, via a proxy if necessary, using HTTP.
429: * If proxyenv is set, use that for the proxy, otherwise try ftp_proxy or
430: * http_proxy as appropriate.
431: * Supports HTTP redirects.
1.41 lukem 432: * Returns -1 on failure, 0 on completed xfer, 1 if ftp connection
433: * is still open (e.g, ftp xfer with trailing /)
1.1 lukem 434: */
1.12 lukem 435: static int
1.111 lukem 436: fetch_url(const char *url, const char *proxyenv, char *proxyauth, char *wwwauth)
1.1 lukem 437: {
1.105 lukem 438: #if defined(NI_NUMERICHOST) && defined(INET6)
1.98 itojun 439: struct addrinfo hints, *res, *res0 = NULL;
1.66 christos 440: int error;
1.98 itojun 441: char hbuf[NI_MAXHOST];
1.66 christos 442: #else
443: struct sockaddr_in sin;
444: struct hostent *hp = NULL;
445: #endif
1.104 lukem 446: volatile sigfunc oldintr, oldintp;
1.42 lukem 447: volatile int s;
1.95 lukem 448: struct stat sb;
1.96 lukem 449: int ischunked, isproxy, rval, hcode;
1.42 lukem 450: size_t len;
1.73 lukem 451: static size_t bufsize;
452: static char *xferbuf;
1.44 lukem 453: char *cp, *ep, *buf, *savefile;
454: char *auth, *location, *message;
1.63 lukem 455: char *user, *pass, *host, *port, *path, *decodedpath;
1.54 lukem 456: char *puser, *ppass;
1.95 lukem 457: off_t hashbytes, rangestart, rangeend, entitylen;
1.111 lukem 458: int (*closefunc)(FILE *);
1.42 lukem 459: FILE *fin, *fout;
460: time_t mtime;
461: url_t urltype;
1.60 itojun 462: in_port_t portnum;
1.1 lukem 463:
1.86 lukem 464: oldintr = oldintp = NULL;
1.22 lukem 465: closefunc = NULL;
1.24 lukem 466: fin = fout = NULL;
1.1 lukem 467: s = -1;
1.44 lukem 468: buf = savefile = NULL;
469: auth = location = message = NULL;
1.52 lukem 470: ischunked = isproxy = hcode = 0;
1.42 lukem 471: rval = 1;
1.54 lukem 472: user = pass = host = path = decodedpath = puser = ppass = NULL;
1.1 lukem 473:
1.27 lukem 474: #ifdef __GNUC__ /* shut up gcc warnings */
1.22 lukem 475: (void)&closefunc;
1.24 lukem 476: (void)&fin;
1.22 lukem 477: (void)&fout;
1.24 lukem 478: (void)&buf;
1.12 lukem 479: (void)&savefile;
1.42 lukem 480: (void)&rval;
1.28 fvdl 481: (void)&isproxy;
1.51 christos 482: (void)&hcode;
483: (void)&ischunked;
484: (void)&message;
485: (void)&location;
486: (void)&auth;
487: (void)&decodedpath;
1.12 lukem 488: #endif
489:
1.82 lukem 490: if (parse_url(url, "URL", &urltype, &user, &pass, &host, &port,
491: &portnum, &path) == -1)
1.42 lukem 492: goto cleanup_fetch_url;
1.5 lukem 493:
1.27 lukem 494: if (urltype == FILE_URL_T && ! EMPTYSTRING(host)
495: && strcasecmp(host, "localhost") != 0) {
496: warnx("No support for non local file URL `%s'", url);
1.42 lukem 497: goto cleanup_fetch_url;
1.9 lukem 498: }
1.27 lukem 499:
1.9 lukem 500: if (EMPTYSTRING(path)) {
1.42 lukem 501: if (urltype == FTP_URL_T) {
1.52 lukem 502: rval = fetch_ftp(url);
1.42 lukem 503: goto cleanup_fetch_url;
504: }
1.27 lukem 505: if (urltype != HTTP_URL_T || outfile == NULL) {
506: warnx("Invalid URL (no file after host) `%s'", url);
1.42 lukem 507: goto cleanup_fetch_url;
1.27 lukem 508: }
1.9 lukem 509: }
1.1 lukem 510:
1.50 lukem 511: decodedpath = xstrdup(path);
512: url_decode(decodedpath);
513:
1.22 lukem 514: if (outfile)
1.29 lukem 515: savefile = xstrdup(outfile);
1.22 lukem 516: else {
1.50 lukem 517: cp = strrchr(decodedpath, '/'); /* find savefile */
1.29 lukem 518: if (cp != NULL)
519: savefile = xstrdup(cp + 1);
1.22 lukem 520: else
1.50 lukem 521: savefile = xstrdup(decodedpath);
1.22 lukem 522: }
1.9 lukem 523: if (EMPTYSTRING(savefile)) {
1.42 lukem 524: if (urltype == FTP_URL_T) {
1.52 lukem 525: rval = fetch_ftp(url);
1.42 lukem 526: goto cleanup_fetch_url;
527: }
1.27 lukem 528: warnx("Invalid URL (no file after directory) `%s'", url);
1.42 lukem 529: goto cleanup_fetch_url;
1.52 lukem 530: } else {
531: if (debug)
532: fprintf(ttyout, "got savefile as `%s'\n", savefile);
1.9 lukem 533: }
1.1 lukem 534:
1.95 lukem 535: restart_point = 0;
1.25 lukem 536: filesize = -1;
1.95 lukem 537: rangestart = rangeend = entitylen = -1;
1.25 lukem 538: mtime = -1;
1.95 lukem 539: if (restartautofetch) {
540: if (strcmp(savefile, "-") != 0 && *savefile != '|' &&
541: stat(savefile, &sb) == 0)
542: restart_point = sb.st_size;
543: }
1.25 lukem 544: if (urltype == FILE_URL_T) { /* file:// URLs */
545: direction = "copied";
1.50 lukem 546: fin = fopen(decodedpath, "r");
1.25 lukem 547: if (fin == NULL) {
1.50 lukem 548: warn("Cannot open file `%s'", decodedpath);
1.42 lukem 549: goto cleanup_fetch_url;
1.5 lukem 550: }
1.25 lukem 551: if (fstat(fileno(fin), &sb) == 0) {
552: mtime = sb.st_mtime;
553: filesize = sb.st_size;
554: }
1.95 lukem 555: if (restart_point) {
556: if (lseek(fileno(fin), restart_point, SEEK_SET) < 0) {
557: warn("Can't lseek to restart `%s'",
558: decodedpath);
559: goto cleanup_fetch_url;
560: }
561: }
562: if (verbose) {
563: fprintf(ttyout, "Copying %s", decodedpath);
564: if (restart_point)
565: #ifndef NO_QUAD
566: fprintf(ttyout, " (restarting at %lld)",
567: (long long)restart_point);
568: #else
569: fprintf(ttyout, " (restarting at %ld)",
570: (long)restart_point);
571: #endif
572: fputs("\n", ttyout);
573: }
1.25 lukem 574: } else { /* ftp:// or http:// URLs */
1.65 lukem 575: char *leading;
576: int hasleading;
577:
1.42 lukem 578: if (proxyenv == NULL) {
579: if (urltype == HTTP_URL_T)
1.91 lukem 580: proxyenv = getoptionvalue("http_proxy");
1.42 lukem 581: else if (urltype == FTP_URL_T)
1.91 lukem 582: proxyenv = getoptionvalue("ftp_proxy");
1.42 lukem 583: }
1.25 lukem 584: direction = "retrieved";
1.91 lukem 585: if (! EMPTYSTRING(proxyenv)) { /* use proxy */
1.27 lukem 586: url_t purltype;
1.54 lukem 587: char *phost, *ppath;
1.91 lukem 588: char *pport, *no_proxy;
1.27 lukem 589:
590: isproxy = 1;
591:
592: /* check URL against list of no_proxied sites */
1.91 lukem 593: no_proxy = getoptionvalue("no_proxy");
594: if (! EMPTYSTRING(no_proxy)) {
1.27 lukem 595: char *np, *np_copy;
596: long np_port;
597: size_t hlen, plen;
598:
599: np_copy = xstrdup(no_proxy);
600: hlen = strlen(host);
601: while ((cp = strsep(&np_copy, " ,")) != NULL) {
602: if (*cp == '\0')
603: continue;
1.60 itojun 604: if ((np = strrchr(cp, ':')) != NULL) {
1.27 lukem 605: *np = '\0';
606: np_port =
607: strtol(np + 1, &ep, 10);
608: if (*ep != '\0')
609: continue;
1.82 lukem 610: if (np_port != portnum)
1.27 lukem 611: continue;
612: }
613: plen = strlen(cp);
1.109 lukem 614: if (hlen < plen)
615: continue;
1.27 lukem 616: if (strncasecmp(host + hlen - plen,
617: cp, plen) == 0) {
618: isproxy = 0;
619: break;
620: }
621: }
622: FREEPTR(np_copy);
1.25 lukem 623: }
1.1 lukem 624:
1.27 lukem 625: if (isproxy) {
626: if (parse_url(proxyenv, "proxy URL", &purltype,
1.82 lukem 627: &puser, &ppass, &phost, &pport, &portnum,
628: &ppath) == -1)
1.42 lukem 629: goto cleanup_fetch_url;
1.27 lukem 630:
631: if ((purltype != HTTP_URL_T
632: && purltype != FTP_URL_T) ||
633: EMPTYSTRING(phost) ||
634: (! EMPTYSTRING(ppath)
635: && strcmp(ppath, "/") != 0)) {
636: warnx("Malformed proxy URL `%s'",
637: proxyenv);
638: FREEPTR(phost);
1.60 itojun 639: FREEPTR(pport);
1.27 lukem 640: FREEPTR(ppath);
1.42 lukem 641: goto cleanup_fetch_url;
1.27 lukem 642: }
1.112 itojun 643: if (isipv6addr(host) &&
644: strchr(host, '%') != NULL) {
645: warnx(
646: "Scoped address notation `%s' disallowed via web proxy",
647: host);
648: FREEPTR(phost);
649: FREEPTR(pport);
650: FREEPTR(ppath);
651: goto cleanup_fetch_url;
652: }
1.12 lukem 653:
1.27 lukem 654: FREEPTR(host);
655: host = phost;
1.62 tron 656: FREEPTR(port);
657: port = pport;
1.27 lukem 658: FREEPTR(path);
1.54 lukem 659: path = xstrdup(url);
1.27 lukem 660: FREEPTR(ppath);
661: }
1.91 lukem 662: } /* ! EMPTYSTRING(proxyenv) */
1.25 lukem 663:
1.105 lukem 664: #if !defined(NI_NUMERICHOST) || !defined(INET6)
1.25 lukem 665: memset(&sin, 0, sizeof(sin));
666: sin.sin_family = AF_INET;
667:
668: if (isdigit((unsigned char)host[0])) {
669: if (inet_aton(host, &sin.sin_addr) == 0) {
1.27 lukem 670: warnx("Invalid IP address `%s'", host);
1.42 lukem 671: goto cleanup_fetch_url;
1.25 lukem 672: }
673: } else {
674: hp = gethostbyname(host);
675: if (hp == NULL) {
676: warnx("%s: %s", host, hstrerror(h_errno));
1.42 lukem 677: goto cleanup_fetch_url;
1.25 lukem 678: }
679: if (hp->h_addrtype != AF_INET) {
1.27 lukem 680: warnx("`%s': not an Internet address?", host);
1.42 lukem 681: goto cleanup_fetch_url;
1.25 lukem 682: }
1.66 christos 683: if (hp->h_length > sizeof(sin.sin_addr))
684: hp->h_length = sizeof(sin.sin_addr);
1.25 lukem 685: memcpy(&sin.sin_addr, hp->h_addr, hp->h_length);
1.1 lukem 686: }
1.82 lukem 687: sin.sin_port = htons(portnum);
1.25 lukem 688:
689: s = socket(AF_INET, SOCK_STREAM, 0);
690: if (s == -1) {
691: warn("Can't create socket");
1.42 lukem 692: goto cleanup_fetch_url;
1.22 lukem 693: }
1.1 lukem 694:
1.25 lukem 695: while (xconnect(s, (struct sockaddr *)&sin,
696: sizeof(sin)) == -1) {
697: if (errno == EINTR)
698: continue;
699: if (hp && hp->h_addr_list[1]) {
700: int oerrno = errno;
701: char *ia;
702:
703: ia = inet_ntoa(sin.sin_addr);
704: errno = oerrno;
1.27 lukem 705: warn("Connect to address `%s'", ia);
1.25 lukem 706: hp->h_addr_list++;
707: memcpy(&sin.sin_addr, hp->h_addr_list[0],
708: (size_t)hp->h_length);
1.49 lukem 709: if (verbose)
710: fprintf(ttyout, "Trying %s...\n",
711: inet_ntoa(sin.sin_addr));
1.25 lukem 712: (void)close(s);
713: s = socket(AF_INET, SOCK_STREAM, 0);
714: if (s < 0) {
715: warn("Can't create socket");
1.42 lukem 716: goto cleanup_fetch_url;
1.25 lukem 717: }
718: continue;
719: }
1.27 lukem 720: warn("Can't connect to `%s'", host);
1.42 lukem 721: goto cleanup_fetch_url;
1.25 lukem 722: }
1.60 itojun 723: #else
724: memset(&hints, 0, sizeof(hints));
1.65 lukem 725: hints.ai_flags = 0;
1.60 itojun 726: hints.ai_family = AF_UNSPEC;
727: hints.ai_socktype = SOCK_STREAM;
728: hints.ai_protocol = 0;
1.98 itojun 729: error = getaddrinfo(host, port, &hints, &res0);
1.60 itojun 730: if (error) {
1.69 mycroft 731: warnx(gai_strerror(error));
1.60 itojun 732: goto cleanup_fetch_url;
733: }
1.98 itojun 734: if (res0->ai_canonname)
735: host = res0->ai_canonname;
1.60 itojun 736:
1.98 itojun 737: s = -1;
738: for (res = res0; res; res = res->ai_next) {
1.113 itojun 739: /*
740: * see comment in hookup()
741: */
742: ai_unmapped(res);
1.98 itojun 743: if (getnameinfo(res->ai_addr, res->ai_addrlen,
744: hbuf, sizeof(hbuf), NULL, 0,
745: NI_NUMERICHOST) != 0)
746: strncpy(hbuf, "invalid", sizeof(hbuf));
747:
748: if (verbose && res != res0)
749: fprintf(ttyout, "Trying %s...\n", hbuf);
750:
751: s = socket(res->ai_family, res->ai_socktype,
752: res->ai_protocol);
1.60 itojun 753: if (s < 0) {
754: warn("Can't create socket");
1.98 itojun 755: continue;
1.60 itojun 756: }
757:
758: if (xconnect(s, res->ai_addr, res->ai_addrlen) < 0) {
759: warn("Connect to address `%s'", hbuf);
760: close(s);
1.98 itojun 761: s = -1;
762: continue;
1.60 itojun 763: }
1.98 itojun 764:
765: /* success */
1.60 itojun 766: break;
767: }
1.98 itojun 768: freeaddrinfo(res0);
769:
770: if (s < 0) {
771: warn("Can't connect to %s", host);
772: goto cleanup_fetch_url;
773: }
1.60 itojun 774: #endif
1.24 lukem 775:
1.25 lukem 776: fin = fdopen(s, "r+");
777: /*
1.27 lukem 778: * Construct and send the request.
1.25 lukem 779: */
1.65 lukem 780: if (verbose)
781: fprintf(ttyout, "Requesting %s\n", url);
782: leading = " (";
783: hasleading = 0;
1.27 lukem 784: if (isproxy) {
1.65 lukem 785: if (verbose) {
786: fprintf(ttyout, "%svia %s:%s", leading,
787: host, port);
788: leading = ", ";
789: hasleading++;
790: }
1.44 lukem 791: fprintf(fin, "GET %s HTTP/1.0\r\n", path);
1.47 lukem 792: if (flushcache)
793: fprintf(fin, "Pragma: no-cache\r\n");
1.27 lukem 794: } else {
795: fprintf(fin, "GET %s HTTP/1.1\r\n", path);
1.106 itojun 796: if (strchr(host, ':')) {
1.112 itojun 797: char *h, *p;
798:
799: /*
800: * strip off IPv6 scope identifier, since it is
801: * local to the node
802: */
803: h = xstrdup(host);
804: if (isipv6addr(h) &&
805: (p = strchr(h, '%')) != NULL) {
806: *p = '\0';
807: }
808: fprintf(fin, "Host: [%s]:%d\r\n", h, portnum);
809: free(h);
1.106 itojun 810: } else
811: fprintf(fin, "Host: %s:%d\r\n", host, portnum);
1.40 explorer 812: fprintf(fin, "Accept: */*\r\n");
1.42 lukem 813: fprintf(fin, "Connection: close\r\n");
1.95 lukem 814: if (restart_point) {
815: fputs(leading, ttyout);
816: #ifndef NO_QUAD
817: fprintf(fin, "Range: bytes=%lld-\r\n",
818: (long long)restart_point);
819: fprintf(ttyout, "restarting at %lld",
820: (long long)restart_point);
821: #else
822: fprintf(fin, "Range: bytes=%ld-\r\n",
823: (long)restart_point);
824: fprintf(ttyout, "restarting at %ld",
825: (long)restart_point);
826: #endif
827: leading = ", ";
828: hasleading++;
829: }
1.47 lukem 830: if (flushcache)
831: fprintf(fin, "Cache-Control: no-cache\r\n");
1.25 lukem 832: }
1.94 lukem 833: fprintf(fin, "User-Agent: %s/%s\r\n", FTP_PRODUCT, FTP_VERSION);
1.44 lukem 834: if (wwwauth) {
1.65 lukem 835: if (verbose) {
836: fprintf(ttyout, "%swith authorization",
837: leading);
838: leading = ", ";
839: hasleading++;
840: }
1.44 lukem 841: fprintf(fin, "Authorization: %s\r\n", wwwauth);
842: }
1.46 lukem 843: if (proxyauth) {
1.65 lukem 844: if (verbose) {
1.49 lukem 845: fprintf(ttyout,
1.65 lukem 846: "%swith proxy authorization", leading);
847: leading = ", ";
848: hasleading++;
849: }
1.44 lukem 850: fprintf(fin, "Proxy-Authorization: %s\r\n", proxyauth);
1.46 lukem 851: }
1.65 lukem 852: if (verbose && hasleading)
853: fputs(")\n", ttyout);
1.44 lukem 854: fprintf(fin, "\r\n");
1.25 lukem 855: if (fflush(fin) == EOF) {
856: warn("Writing HTTP request");
1.42 lukem 857: goto cleanup_fetch_url;
1.25 lukem 858: }
1.1 lukem 859:
1.25 lukem 860: /* Read the response */
1.24 lukem 861: if ((buf = fparseln(fin, &len, NULL, "\0\0\0", 0)) == NULL) {
862: warn("Receiving HTTP reply");
1.42 lukem 863: goto cleanup_fetch_url;
1.24 lukem 864: }
865: while (len > 0 && (buf[len-1] == '\r' || buf[len-1] == '\n'))
866: buf[--len] = '\0';
867: if (debug)
1.27 lukem 868: fprintf(ttyout, "received `%s'\n", buf);
1.1 lukem 869:
1.42 lukem 870: /* Determine HTTP response code */
1.25 lukem 871: cp = strchr(buf, ' ');
872: if (cp == NULL)
873: goto improper;
874: else
875: cp++;
1.42 lukem 876: hcode = strtol(cp, &ep, 10);
877: if (*ep != '\0' && !isspace((unsigned char)*ep))
878: goto improper;
879: message = xstrdup(cp);
1.25 lukem 880:
881: /* Read the rest of the header. */
1.27 lukem 882: FREEPTR(buf);
1.25 lukem 883: while (1) {
884: if ((buf = fparseln(fin, &len, NULL, "\0\0\0", 0))
885: == NULL) {
886: warn("Receiving HTTP reply");
1.42 lukem 887: goto cleanup_fetch_url;
1.25 lukem 888: }
889: while (len > 0 &&
890: (buf[len-1] == '\r' || buf[len-1] == '\n'))
891: buf[--len] = '\0';
892: if (len == 0)
893: break;
894: if (debug)
1.27 lukem 895: fprintf(ttyout, "received `%s'\n", buf);
1.25 lukem 896:
897: /* Look for some headers */
898: cp = buf;
1.42 lukem 899:
1.91 lukem 900: #define CONTENTLEN "Content-Length: "
1.25 lukem 901: if (strncasecmp(cp, CONTENTLEN,
1.44 lukem 902: sizeof(CONTENTLEN) - 1) == 0) {
1.25 lukem 903: cp += sizeof(CONTENTLEN) - 1;
1.95 lukem 904: #ifndef NO_QUAD
1.108 lukem 905: filesize = strtoll(cp, &ep, 10);
1.95 lukem 906: #else
1.25 lukem 907: filesize = strtol(cp, &ep, 10);
1.95 lukem 908: #endif
909: if (filesize < 0 || *ep != '\0')
1.25 lukem 910: goto improper;
911: if (debug)
912: #ifndef NO_QUAD
1.95 lukem 913: fprintf(ttyout, "parsed len as: %lld\n",
1.25 lukem 914: (long long)filesize);
915: #else
1.95 lukem 916: fprintf(ttyout, "parsed len as: %ld\n",
1.25 lukem 917: (long)filesize);
918: #endif
1.42 lukem 919:
1.95 lukem 920: #define CONTENTRANGE "Content-Range: bytes "
921: } else if (strncasecmp(cp, CONTENTRANGE,
922: sizeof(CONTENTRANGE) - 1) == 0) {
923: cp += sizeof(CONTENTRANGE) - 1;
924: #ifndef NO_QUAD
1.108 lukem 925: rangestart = strtoll(cp, &ep, 10);
1.95 lukem 926: #else
927: rangestart = strtol(cp, &ep, 10);
928: #endif
929: if (rangestart < 0 || *ep != '-')
930: goto improper;
931: cp = ep + 1;
932:
933: #ifndef NO_QUAD
1.108 lukem 934: rangeend = strtoll(cp, &ep, 10);
1.95 lukem 935: #else
936: rangeend = strtol(cp, &ep, 10);
937: #endif
938: if (rangeend < 0 || *ep != '/' ||
939: rangeend < rangestart)
940: goto improper;
941: cp = ep + 1;
942:
943: #ifndef NO_QUAD
1.108 lukem 944: entitylen = strtoll(cp, &ep, 10);
1.95 lukem 945: #else
946: entitylen = strtol(cp, &ep, 10);
947: #endif
948: if (entitylen < 0 || *ep != '\0')
949: goto improper;
950:
951: if (debug)
952: #ifndef NO_QUAD
953: fprintf(ttyout,
954: "parsed range as: %lld-%lld/%lld\n",
955: (long long)rangestart,
956: (long long)rangeend,
957: (long long)entitylen);
958: #else
959: fprintf(ttyout,
960: "parsed range as: %ld-%ld/%ld\n",
961: (long)rangestart,
962: (long)rangeend,
963: (long)entitylen);
964: #endif
965: if (! restart_point) {
966: warnx(
967: "Received unexpected Content-Range header");
968: goto cleanup_fetch_url;
969: }
970:
1.91 lukem 971: #define LASTMOD "Last-Modified: "
1.25 lukem 972: } else if (strncasecmp(cp, LASTMOD,
1.44 lukem 973: sizeof(LASTMOD) - 1) == 0) {
1.25 lukem 974: struct tm parsed;
975: char *t;
976:
977: cp += sizeof(LASTMOD) - 1;
978: /* RFC 1123 */
979: if ((t = strptime(cp,
980: "%a, %d %b %Y %H:%M:%S GMT",
981: &parsed))
982: /* RFC 850 */
983: || (t = strptime(cp,
984: "%a, %d-%b-%y %H:%M:%S GMT",
985: &parsed))
986: /* asctime */
987: || (t = strptime(cp,
988: "%a, %b %d %H:%M:%S %Y",
989: &parsed))) {
1.38 lukem 990: parsed.tm_isdst = -1;
1.25 lukem 991: if (*t == '\0')
1.76 lukem 992: mtime = timegm(&parsed);
1.38 lukem 993: if (debug && mtime != -1) {
1.25 lukem 994: fprintf(ttyout,
995: "parsed date as: %s",
996: ctime(&mtime));
1.38 lukem 997: }
1.25 lukem 998: }
1.42 lukem 999:
1.91 lukem 1000: #define LOCATION "Location: "
1.42 lukem 1001: } else if (strncasecmp(cp, LOCATION,
1.44 lukem 1002: sizeof(LOCATION) - 1) == 0) {
1.25 lukem 1003: cp += sizeof(LOCATION) - 1;
1.42 lukem 1004: location = xstrdup(cp);
1.25 lukem 1005: if (debug)
1006: fprintf(ttyout,
1007: "parsed location as: %s\n", cp);
1.44 lukem 1008:
1.91 lukem 1009: #define TRANSENC "Transfer-Encoding: "
1.45 lukem 1010: } else if (strncasecmp(cp, TRANSENC,
1011: sizeof(TRANSENC) - 1) == 0) {
1012: cp += sizeof(TRANSENC) - 1;
1.109 lukem 1013: if (strcasecmp(cp, "binary") == 0) {
1014: warnx(
1015: "Bogus transfer encoding - `%s' (fetching anyway)",
1016: cp);
1017: continue;
1018: }
1.45 lukem 1019: if (strcasecmp(cp, "chunked") != 0) {
1020: warnx(
1021: "Unsupported transfer encoding - `%s'",
1022: cp);
1023: goto cleanup_fetch_url;
1024: }
1025: ischunked++;
1026: if (debug)
1027: fprintf(ttyout,
1028: "using chunked encoding\n");
1029:
1.91 lukem 1030: #define PROXYAUTH "Proxy-Authenticate: "
1.44 lukem 1031: } else if (strncasecmp(cp, PROXYAUTH,
1032: sizeof(PROXYAUTH) - 1) == 0) {
1033: cp += sizeof(PROXYAUTH) - 1;
1034: FREEPTR(auth);
1035: auth = xstrdup(cp);
1036: if (debug)
1037: fprintf(ttyout,
1038: "parsed proxy-auth as: %s\n", cp);
1039:
1.91 lukem 1040: #define WWWAUTH "WWW-Authenticate: "
1.44 lukem 1041: } else if (strncasecmp(cp, WWWAUTH,
1042: sizeof(WWWAUTH) - 1) == 0) {
1043: cp += sizeof(WWWAUTH) - 1;
1044: FREEPTR(auth);
1045: auth = xstrdup(cp);
1046: if (debug)
1047: fprintf(ttyout,
1048: "parsed www-auth as: %s\n", cp);
1049:
1.25 lukem 1050: }
1.44 lukem 1051:
1.24 lukem 1052: }
1.54 lukem 1053: /* finished parsing header */
1.27 lukem 1054: FREEPTR(buf);
1.1 lukem 1055:
1.52 lukem 1056: switch (hcode) {
1057: case 200:
1058: break;
1.95 lukem 1059: case 206:
1060: if (! restart_point) {
1061: warnx("Not expecting partial content header");
1062: goto cleanup_fetch_url;
1063: }
1064: break;
1.52 lukem 1065: case 300:
1066: case 301:
1067: case 302:
1068: case 303:
1069: case 305:
1070: if (EMPTYSTRING(location)) {
1071: warnx(
1072: "No redirection Location provided by server");
1073: goto cleanup_fetch_url;
1074: }
1075: if (redirect_loop++ > 5) {
1076: warnx("Too many redirections requested");
1077: goto cleanup_fetch_url;
1078: }
1079: if (hcode == 305) {
1080: if (verbose)
1081: fprintf(ttyout, "Redirected via %s\n",
1082: location);
1083: rval = fetch_url(url, location,
1084: proxyauth, wwwauth);
1085: } else {
1086: if (verbose)
1087: fprintf(ttyout, "Redirected to %s\n",
1088: location);
1089: rval = go_fetch(location);
1090: }
1.42 lukem 1091: goto cleanup_fetch_url;
1.52 lukem 1092: case 401:
1093: case 407:
1094: {
1095: char **authp;
1.54 lukem 1096: char *auser, *apass;
1.52 lukem 1097:
1098: fprintf(ttyout, "%s\n", message);
1099: if (EMPTYSTRING(auth)) {
1100: warnx(
1101: "No authentication challenge provided by server");
1102: goto cleanup_fetch_url;
1103: }
1.54 lukem 1104: if (hcode == 401) {
1105: authp = &wwwauth;
1106: auser = user;
1107: apass = pass;
1108: } else {
1109: authp = &proxyauth;
1110: auser = puser;
1111: apass = ppass;
1112: }
1.52 lukem 1113: if (*authp != NULL) {
1114: char reply[10];
1115:
1116: fprintf(ttyout,
1117: "Authorization failed. Retry (y/n)? ");
1.90 lukem 1118: if (fgets(reply, sizeof(reply), stdin)
1119: == NULL) {
1120: clearerr(stdin);
1.52 lukem 1121: goto cleanup_fetch_url;
1.90 lukem 1122: } else {
1123: if (tolower(reply[0]) != 'y')
1124: goto cleanup_fetch_url;
1125: }
1.54 lukem 1126: auser = NULL;
1127: apass = NULL;
1.52 lukem 1128: }
1.54 lukem 1129: if (auth_url(auth, authp, auser, apass) == 0) {
1.52 lukem 1130: rval = fetch_url(url, proxyenv,
1131: proxyauth, wwwauth);
1.80 lukem 1132: memset(*authp, 0, strlen(*authp));
1.52 lukem 1133: FREEPTR(*authp);
1134: }
1.42 lukem 1135: goto cleanup_fetch_url;
1.52 lukem 1136: }
1137: default:
1138: if (message)
1139: warnx("Error retrieving file - `%s'", message);
1140: else
1141: warnx("Unknown error retrieving file");
1.44 lukem 1142: goto cleanup_fetch_url;
1143: }
1.52 lukem 1144: } /* end of ftp:// or http:// specific setup */
1.42 lukem 1145:
1.22 lukem 1146: /* Open the output file. */
1147: if (strcmp(savefile, "-") == 0) {
1148: fout = stdout;
1149: } else if (*savefile == '|') {
1.77 lukem 1150: oldintp = xsignal(SIGPIPE, SIG_IGN);
1.22 lukem 1151: fout = popen(savefile + 1, "w");
1152: if (fout == NULL) {
1.27 lukem 1153: warn("Can't run `%s'", savefile + 1);
1.42 lukem 1154: goto cleanup_fetch_url;
1.22 lukem 1155: }
1156: closefunc = pclose;
1157: } else {
1.95 lukem 1158: if (restart_point){
1159: if (entitylen != -1)
1160: filesize = entitylen;
1161: if (rangestart != -1 && rangestart != restart_point) {
1162: warnx(
1163: "Size of `%s' differs from save file `%s'",
1164: url, savefile);
1165: goto cleanup_fetch_url;
1166: }
1167: fout = fopen(savefile, "a");
1168: } else
1169: fout = fopen(savefile, "w");
1.22 lukem 1170: if (fout == NULL) {
1.27 lukem 1171: warn("Can't open `%s'", savefile);
1.42 lukem 1172: goto cleanup_fetch_url;
1.22 lukem 1173: }
1174: closefunc = fclose;
1.1 lukem 1175: }
1176:
1.22 lukem 1177: /* Trap signals */
1.88 lukem 1178: if (sigsetjmp(httpabort, 1))
1.42 lukem 1179: goto cleanup_fetch_url;
1.86 lukem 1180: (void)xsignal(SIGQUIT, psummary);
1.77 lukem 1181: oldintr = xsignal(SIGINT, aborthttp);
1.2 lukem 1182:
1.73 lukem 1183: if (rcvbuf_size > bufsize) {
1184: if (xferbuf)
1185: (void)free(xferbuf);
1186: bufsize = rcvbuf_size;
1187: xferbuf = xmalloc(bufsize);
1188: }
1189:
1.1 lukem 1190: bytes = 0;
1191: hashbytes = mark;
1192: progressmeter(-1);
1.2 lukem 1193:
1.24 lukem 1194: /* Finally, suck down the file. */
1.45 lukem 1195: do {
1.77 lukem 1196: long chunksize;
1.45 lukem 1197:
1198: chunksize = 0;
1199: /* read chunksize */
1200: if (ischunked) {
1.73 lukem 1201: if (fgets(xferbuf, bufsize, fin) == NULL) {
1.45 lukem 1202: warnx("Unexpected EOF reading chunksize");
1203: goto cleanup_fetch_url;
1204: }
1.73 lukem 1205: chunksize = strtol(xferbuf, &ep, 16);
1.103 lukem 1206:
1207: /*
1208: * XXX: Work around bug in Apache 1.3.9, which
1209: * incorrectly puts a trailing space after
1210: * the chunksize.
1211: */
1212: if (*ep == ' ')
1213: ep++;
1214:
1.45 lukem 1215: if (strcmp(ep, "\r\n") != 0) {
1216: warnx("Unexpected data following chunksize");
1217: goto cleanup_fetch_url;
1218: }
1219: if (debug)
1.59 lukem 1220: fprintf(ttyout,
1221: #ifndef NO_QUAD
1.75 lukem 1222: "got chunksize of %lld\n",
1.45 lukem 1223: (long long)chunksize);
1.59 lukem 1224: #else
1225: "got chunksize of %ld\n",
1226: (long)chunksize);
1227: #endif
1.45 lukem 1228: if (chunksize == 0)
1229: break;
1230: }
1.59 lukem 1231: /* transfer file or chunk */
1232: while (1) {
1233: struct timeval then, now, td;
1234: off_t bufrem;
1235:
1.71 lukem 1236: if (rate_get)
1237: (void)gettimeofday(&then, NULL);
1.73 lukem 1238: bufrem = rate_get ? rate_get : bufsize;
1.101 lukem 1239: if (ischunked)
1240: bufrem = MIN(chunksize, bufrem);
1.59 lukem 1241: while (bufrem > 0) {
1.73 lukem 1242: len = fread(xferbuf, sizeof(char),
1.101 lukem 1243: MIN(bufsize, bufrem), fin);
1.59 lukem 1244: if (len <= 0)
1245: goto chunkdone;
1246: bytes += len;
1247: bufrem -= len;
1.73 lukem 1248: if (fwrite(xferbuf, sizeof(char), len, fout)
1.59 lukem 1249: != len) {
1250: warn("Writing `%s'", savefile);
1251: goto cleanup_fetch_url;
1252: }
1.101 lukem 1253: if (hash && !progress) {
1254: while (bytes >= hashbytes) {
1255: (void)putc('#', ttyout);
1256: hashbytes += mark;
1257: }
1258: (void)fflush(ttyout);
1259: }
1260: if (ischunked) {
1261: chunksize -= len;
1262: if (chunksize <= 0)
1263: break;
1.45 lukem 1264: }
1.59 lukem 1265: }
1266: if (rate_get) {
1267: while (1) {
1268: (void)gettimeofday(&now, NULL);
1269: timersub(&now, &then, &td);
1270: if (td.tv_sec > 0)
1271: break;
1272: usleep(1000000 - td.tv_usec);
1273: }
1274: }
1.101 lukem 1275: if (ischunked && chunksize <= 0)
1276: break;
1.1 lukem 1277: }
1.45 lukem 1278: /* read CRLF after chunk*/
1.59 lukem 1279: chunkdone:
1.45 lukem 1280: if (ischunked) {
1.73 lukem 1281: if (fgets(xferbuf, bufsize, fin) == NULL)
1.45 lukem 1282: break;
1.73 lukem 1283: if (strcmp(xferbuf, "\r\n") != 0) {
1.45 lukem 1284: warnx("Unexpected data following chunk");
1285: goto cleanup_fetch_url;
1.1 lukem 1286: }
1287: }
1.45 lukem 1288: } while (ischunked);
1.1 lukem 1289: if (hash && !progress && bytes > 0) {
1290: if (bytes < mark)
1.22 lukem 1291: (void)putc('#', ttyout);
1292: (void)putc('\n', ttyout);
1.1 lukem 1293: }
1.25 lukem 1294: if (ferror(fin)) {
1295: warn("Reading file");
1.42 lukem 1296: goto cleanup_fetch_url;
1.1 lukem 1297: }
1.2 lukem 1298: progressmeter(1);
1.85 lukem 1299: bytes = 0;
1.25 lukem 1300: (void)fflush(fout);
1301: if (closefunc == fclose && mtime != -1) {
1302: struct timeval tval[2];
1303:
1304: (void)gettimeofday(&tval[0], NULL);
1305: tval[1].tv_sec = mtime;
1306: tval[1].tv_usec = 0;
1.31 lukem 1307: (*closefunc)(fout);
1308: fout = NULL;
1309:
1310: if (utimes(savefile, tval) == -1) {
1.25 lukem 1311: fprintf(ttyout,
1312: "Can't change modification time to %s",
1313: asctime(localtime(&mtime)));
1314: }
1315: }
1316: if (bytes > 0)
1317: ptransfer(0);
1.1 lukem 1318:
1.42 lukem 1319: rval = 0;
1320: goto cleanup_fetch_url;
1.11 lukem 1321:
1.1 lukem 1322: improper:
1.27 lukem 1323: warnx("Improper response from `%s'", host);
1.11 lukem 1324:
1.42 lukem 1325: cleanup_fetch_url:
1.86 lukem 1326: if (oldintr)
1327: (void)xsignal(SIGINT, oldintr);
1328: if (oldintp)
1329: (void)xsignal(SIGPIPE, oldintp);
1.24 lukem 1330: if (fin != NULL)
1331: fclose(fin);
1332: else if (s != -1)
1.1 lukem 1333: close(s);
1.22 lukem 1334: if (closefunc != NULL && fout != NULL)
1335: (*closefunc)(fout);
1.29 lukem 1336: FREEPTR(savefile);
1.27 lukem 1337: FREEPTR(user);
1338: FREEPTR(pass);
1339: FREEPTR(host);
1.60 itojun 1340: FREEPTR(port);
1.27 lukem 1341: FREEPTR(path);
1.50 lukem 1342: FREEPTR(decodedpath);
1.54 lukem 1343: FREEPTR(puser);
1344: FREEPTR(ppass);
1.27 lukem 1345: FREEPTR(buf);
1.44 lukem 1346: FREEPTR(auth);
1.42 lukem 1347: FREEPTR(location);
1348: FREEPTR(message);
1349: return (rval);
1.1 lukem 1350: }
1351:
1352: /*
1.50 lukem 1353: * Abort a HTTP retrieval
1.2 lukem 1354: */
1355: void
1.111 lukem 1356: aborthttp(int notused)
1.2 lukem 1357: {
1.88 lukem 1358: char msgbuf[100];
1359: int len;
1.2 lukem 1360:
1361: alarmtimer(0);
1.88 lukem 1362: len = strlcpy(msgbuf, "\nHTTP fetch aborted.\n", sizeof(msgbuf));
1363: write(fileno(ttyout), msgbuf, len);
1364: siglongjmp(httpabort, 1);
1.2 lukem 1365: }
1366:
1367: /*
1.50 lukem 1368: * Retrieve ftp URL or classic ftp argument using FTP.
1.63 lukem 1369: * Returns 1 on failure, 0 on completed xfer, -1 if ftp connection
1.42 lukem 1370: * is still open (e.g, ftp xfer with trailing /)
1371: */
1372: static int
1.111 lukem 1373: fetch_ftp(const char *url)
1.42 lukem 1374: {
1375: char *cp, *xargv[5], rempath[MAXPATHLEN];
1376: char *host, *path, *dir, *file, *user, *pass;
1.60 itojun 1377: char *port;
1.82 lukem 1378: int dirhasglob, filehasglob, oautologin, rval, type, xargc;
1379: in_port_t portnum;
1380: url_t urltype;
1.42 lukem 1381:
1382: host = path = dir = file = user = pass = NULL;
1.60 itojun 1383: port = NULL;
1.42 lukem 1384: rval = 1;
1.53 lukem 1385: type = TYPE_I;
1.42 lukem 1386:
1387: if (strncasecmp(url, FTP_URL, sizeof(FTP_URL) - 1) == 0) {
1388: if ((parse_url(url, "URL", &urltype, &user, &pass,
1.82 lukem 1389: &host, &port, &portnum, &path) == -1) ||
1.42 lukem 1390: (user != NULL && *user == '\0') ||
1391: (pass != NULL && *pass == '\0') ||
1392: EMPTYSTRING(host)) {
1393: warnx("Invalid URL `%s'", url);
1394: goto cleanup_fetch_ftp;
1395: }
1.50 lukem 1396: url_decode(user);
1397: url_decode(pass);
1.53 lukem 1398: /*
1399: * Note: Don't url_decode(path) here. We need to keep the
1400: * distinction between "/" and "%2F" until later.
1401: */
1402:
1403: /* check for trailing ';type=[aid]' */
1.63 lukem 1404: if (! EMPTYSTRING(path) && (cp = strrchr(path, ';')) != NULL) {
1.53 lukem 1405: if (strcasecmp(cp, ";type=a") == 0)
1406: type = TYPE_A;
1407: else if (strcasecmp(cp, ";type=i") == 0)
1408: type = TYPE_I;
1409: else if (strcasecmp(cp, ";type=d") == 0) {
1410: warnx(
1411: "Directory listing via a URL is not supported");
1412: goto cleanup_fetch_ftp;
1413: } else {
1414: warnx("Invalid suffix `%s' in URL `%s'", cp,
1415: url);
1416: goto cleanup_fetch_ftp;
1417: }
1418: *cp = 0;
1419: }
1.97 lukem 1420: } else { /* classic style `[user@]host:[file]' */
1.53 lukem 1421: urltype = CLASSIC_URL_T;
1.42 lukem 1422: host = xstrdup(url);
1.97 lukem 1423: cp = strchr(host, '@');
1424: if (cp != NULL) {
1425: *cp = '\0';
1426: user = host;
1427: anonftp = 0; /* disable anonftp */
1428: host = xstrdup(cp + 1);
1429: }
1.42 lukem 1430: cp = strchr(host, ':');
1431: if (cp != NULL) {
1432: *cp = '\0';
1433: path = xstrdup(cp + 1);
1434: }
1435: }
1436: if (EMPTYSTRING(host))
1437: goto cleanup_fetch_ftp;
1438:
1.50 lukem 1439: /* Extract the file and (if present) directory name. */
1.42 lukem 1440: dir = path;
1441: if (! EMPTYSTRING(dir)) {
1.53 lukem 1442: /*
1.97 lukem 1443: * If we are dealing with classic `[user@]host:[path]' syntax,
1444: * then a path of the form `/file' (resulting from input of the
1445: * form `host:/file') means that we should do "CWD /" before
1446: * retrieving the file. So we set dir="/" and file="file".
1.53 lukem 1447: *
1.97 lukem 1448: * But if we are dealing with URLs like `ftp://host/path' then
1449: * a path of the form `/file' (resulting from a URL of the form
1450: * `ftp://host//file') means that we should do `CWD ' (with an
1451: * empty argument) before retrieving the file. So we set
1.53 lukem 1452: * dir="" and file="file".
1453: *
1.97 lukem 1454: * If the path does not contain / at all, we set dir=NULL.
1455: * (We get a path without any slashes if we are dealing with
1456: * classic `[user@]host:[file]' or URL `ftp://host/file'.)
1.53 lukem 1457: *
1.97 lukem 1458: * In all other cases, we set dir to a string that does not
1459: * include the final '/' that separates the dir part from the
1460: * file part of the path. (This will be the empty string if
1461: * and only if we are dealing with a path of the form `/file'
1462: * resulting from an URL of the form `ftp://host//file'.)
1.53 lukem 1463: */
1.42 lukem 1464: cp = strrchr(dir, '/');
1.53 lukem 1465: if (cp == dir && urltype == CLASSIC_URL_T) {
1.50 lukem 1466: file = cp + 1;
1467: dir = "/";
1468: } else if (cp != NULL) {
1.42 lukem 1469: *cp++ = '\0';
1470: file = cp;
1471: } else {
1472: file = dir;
1473: dir = NULL;
1474: }
1.63 lukem 1475: } else
1476: dir = NULL;
1.53 lukem 1477: if (urltype == FTP_URL_T && file != NULL) {
1478: url_decode(file);
1479: /* but still don't url_decode(dir) */
1480: }
1.42 lukem 1481: if (debug)
1482: fprintf(ttyout,
1.107 itojun 1483: "fetch_ftp: user `%s' pass `%s' host %s port %s "
1484: "path `%s' dir `%s' file `%s'\n",
1.53 lukem 1485: user ? user : "<null>", pass ? pass : "<null>",
1.60 itojun 1486: host ? host : "<null>", port ? port : "<null>",
1487: path ? path : "<null>",
1.53 lukem 1488: dir ? dir : "<null>", file ? file : "<null>");
1.42 lukem 1489:
1490: dirhasglob = filehasglob = 0;
1.53 lukem 1491: if (doglob && urltype == CLASSIC_URL_T) {
1.42 lukem 1492: if (! EMPTYSTRING(dir) && strpbrk(dir, "*?[]{}") != NULL)
1493: dirhasglob = 1;
1494: if (! EMPTYSTRING(file) && strpbrk(file, "*?[]{}") != NULL)
1495: filehasglob = 1;
1496: }
1497:
1.50 lukem 1498: /* Set up the connection */
1499: if (connected)
1500: disconnect(0, NULL);
1501: xargv[0] = __progname;
1502: xargv[1] = host;
1503: xargv[2] = NULL;
1504: xargc = 2;
1505: if (port) {
1.60 itojun 1506: xargv[2] = port;
1.50 lukem 1507: xargv[3] = NULL;
1508: xargc = 3;
1509: }
1510: oautologin = autologin;
1.116 ! lukem 1511: /* don't autologin in setpeer(), use ftp_login() below */
! 1512: autologin = 0;
1.50 lukem 1513: setpeer(xargc, xargv);
1514: autologin = oautologin;
1.116 ! lukem 1515: if ((connected == 0) ||
! 1516: (connected == 1 && !ftp_login(host, user, pass))) {
1.50 lukem 1517: warnx("Can't connect or login to host `%s'", host);
1518: goto cleanup_fetch_ftp;
1519: }
1.42 lukem 1520:
1.53 lukem 1521: switch (type) {
1522: case TYPE_A:
1523: setascii(0, NULL);
1524: break;
1525: case TYPE_I:
1526: setbinary(0, NULL);
1527: break;
1528: default:
1.91 lukem 1529: errx(1, "fetch_ftp: unknown transfer type %d", type);
1.53 lukem 1530: }
1531:
1.63 lukem 1532: /*
1533: * Change directories, if necessary.
1534: *
1535: * Note: don't use EMPTYSTRING(dir) below, because
1536: * dir=="" means something different from dir==NULL.
1537: */
1.53 lukem 1538: if (dir != NULL && !dirhasglob) {
1539: char *nextpart;
1.42 lukem 1540:
1.53 lukem 1541: /*
1.97 lukem 1542: * If we are dealing with a classic `[user@]host:[path]'
1543: * (urltype is CLASSIC_URL_T) then we have a raw directory
1.53 lukem 1544: * name (not encoded in any way) and we can change
1545: * directories in one step.
1546: *
1547: * If we are dealing with an `ftp://host/path' URL
1548: * (urltype is FTP_URL_T), then RFC 1738 says we need to
1549: * send a separate CWD command for each unescaped "/"
1550: * in the path, and we have to interpret %hex escaping
1551: * *after* we find the slashes. It's possible to get
1552: * empty components here, (from multiple adjacent
1553: * slashes in the path) and RFC 1738 says that we should
1554: * still do `CWD ' (with a null argument) in such cases.
1555: *
1.63 lukem 1556: * Many ftp servers don't support `CWD ', so if there's an
1557: * error performing that command, bail out with a descriptive
1558: * message.
1.53 lukem 1559: *
1560: * Examples:
1561: *
1.63 lukem 1562: * host: dir="", urltype=CLASSIC_URL_T
1563: * logged in (to default directory)
1.53 lukem 1564: * host:file dir=NULL, urltype=CLASSIC_URL_T
1565: * "RETR file"
1.63 lukem 1566: * host:dir/ dir="dir", urltype=CLASSIC_URL_T
1567: * "CWD dir", logged in
1568: * ftp://host/ dir="", urltype=FTP_URL_T
1569: * logged in (to default directory)
1570: * ftp://host/dir/ dir="dir", urltype=FTP_URL_T
1571: * "CWD dir", logged in
1.53 lukem 1572: * ftp://host/file dir=NULL, urltype=FTP_URL_T
1573: * "RETR file"
1574: * ftp://host//file dir="", urltype=FTP_URL_T
1.63 lukem 1575: * "CWD ", "RETR file"
1.53 lukem 1576: * host:/file dir="/", urltype=CLASSIC_URL_T
1577: * "CWD /", "RETR file"
1578: * ftp://host///file dir="/", urltype=FTP_URL_T
1.63 lukem 1579: * "CWD ", "CWD ", "RETR file"
1.53 lukem 1580: * ftp://host/%2F/file dir="%2F", urltype=FTP_URL_T
1581: * "CWD /", "RETR file"
1582: * ftp://host/foo/file dir="foo", urltype=FTP_URL_T
1583: * "CWD foo", "RETR file"
1584: * ftp://host/foo/bar/file dir="foo/bar"
1585: * "CWD foo", "CWD bar", "RETR file"
1586: * ftp://host//foo/bar/file dir="/foo/bar"
1.63 lukem 1587: * "CWD ", "CWD foo", "CWD bar", "RETR file"
1.53 lukem 1588: * ftp://host/foo//bar/file dir="foo//bar"
1.63 lukem 1589: * "CWD foo", "CWD ", "CWD bar", "RETR file"
1.53 lukem 1590: * ftp://host/%2F/foo/bar/file dir="%2F/foo/bar"
1591: * "CWD /", "CWD foo", "CWD bar", "RETR file"
1592: * ftp://host/%2Ffoo/bar/file dir="%2Ffoo/bar"
1593: * "CWD /foo", "CWD bar", "RETR file"
1594: * ftp://host/%2Ffoo%2Fbar/file dir="%2Ffoo%2Fbar"
1595: * "CWD /foo/bar", "RETR file"
1596: * ftp://host/%2Ffoo%2Fbar%2Ffile dir=NULL
1597: * "RETR /foo/bar/file"
1598: *
1599: * Note that we don't need `dir' after this point.
1600: */
1601: do {
1602: if (urltype == FTP_URL_T) {
1603: nextpart = strchr(dir, '/');
1604: if (nextpart) {
1605: *nextpart = '\0';
1606: nextpart++;
1607: }
1608: url_decode(dir);
1609: } else
1610: nextpart = NULL;
1611: if (debug)
1612: fprintf(ttyout, "dir `%s', nextpart `%s'\n",
1613: dir ? dir : "<null>",
1614: nextpart ? nextpart : "<null>");
1.63 lukem 1615: if (urltype == FTP_URL_T || *dir != '\0') {
1.53 lukem 1616: xargv[0] = "cd";
1617: xargv[1] = dir;
1618: xargv[2] = NULL;
1619: dirchange = 0;
1620: cd(2, xargv);
1.63 lukem 1621: if (! dirchange) {
1622: if (*dir == '\0' && code == 500)
1623: fprintf(stderr,
1624: "\n"
1625: "ftp: The `CWD ' command (without a directory), which is required by\n"
1626: " RFC 1738 to support the empty directory in the URL pathname (`//'),\n"
1627: " conflicts with the server's conformance to RFC 959.\n"
1628: " Try the same URL without the `//' in the URL pathname.\n"
1629: "\n");
1.53 lukem 1630: goto cleanup_fetch_ftp;
1.63 lukem 1631: }
1.53 lukem 1632: }
1633: dir = nextpart;
1634: } while (dir != NULL);
1.42 lukem 1635: }
1636:
1637: if (EMPTYSTRING(file)) {
1638: rval = -1;
1639: goto cleanup_fetch_ftp;
1640: }
1641:
1642: if (dirhasglob) {
1.78 lukem 1643: (void)strlcpy(rempath, dir, sizeof(rempath));
1644: (void)strlcat(rempath, "/", sizeof(rempath));
1645: (void)strlcat(rempath, file, sizeof(rempath));
1.42 lukem 1646: file = rempath;
1647: }
1648:
1649: /* Fetch the file(s). */
1650: xargc = 2;
1651: xargv[0] = "get";
1652: xargv[1] = file;
1653: xargv[2] = NULL;
1654: if (dirhasglob || filehasglob) {
1655: int ointeractive;
1656:
1657: ointeractive = interactive;
1658: interactive = 0;
1659: xargv[0] = "mget";
1660: mget(xargc, xargv);
1661: interactive = ointeractive;
1662: } else {
1.53 lukem 1663: if (outfile == NULL) {
1664: cp = strrchr(file, '/'); /* find savefile */
1665: if (cp != NULL)
1666: outfile = cp + 1;
1667: else
1668: outfile = file;
1.42 lukem 1669: }
1.53 lukem 1670: xargv[2] = (char *)outfile;
1671: xargv[3] = NULL;
1672: xargc++;
1.52 lukem 1673: if (restartautofetch)
1674: reget(xargc, xargv);
1675: else
1676: get(xargc, xargv);
1.42 lukem 1677: }
1678:
1679: if ((code / 100) == COMPLETE)
1680: rval = 0;
1681:
1682: cleanup_fetch_ftp:
1683: FREEPTR(host);
1684: FREEPTR(path);
1685: FREEPTR(user);
1686: FREEPTR(pass);
1687: return (rval);
1688: }
1689:
1690: /*
1691: * Retrieve the given file to outfile.
1692: * Supports arguments of the form:
1693: * "host:path", "ftp://host/path" if $ftpproxy, call fetch_url() else
1694: * call fetch_ftp()
1.50 lukem 1695: * "http://host/path" call fetch_url() to use HTTP
1.42 lukem 1696: * "file:///path" call fetch_url() to copy
1697: * "about:..." print a message
1698: *
1699: * Returns 1 on failure, 0 on completed xfer, -1 if ftp connection
1700: * is still open (e.g, ftp xfer with trailing /)
1701: */
1702: static int
1.111 lukem 1703: go_fetch(const char *url)
1.42 lukem 1704: {
1.91 lukem 1705: char *proxy;
1.42 lukem 1706:
1707: /*
1708: * Check for about:*
1709: */
1710: if (strncasecmp(url, ABOUT_URL, sizeof(ABOUT_URL) - 1) == 0) {
1711: url += sizeof(ABOUT_URL) -1;
1712: if (strcasecmp(url, "ftp") == 0) {
1.87 lukem 1713: fputs(
1714: "This version of ftp has been enhanced by Luke Mewburn <lukem@netbsd.org>\n"
1715: "for the NetBSD project. Execute `man ftp' for more details.\n", ttyout);
1716: } else if (strcasecmp(url, "lukem") == 0) {
1717: fputs(
1718: "Luke Mewburn is the author of most of the enhancements in this ftp client.\n"
1719: "Please email feedback to <lukem@netbsd.org>.\n", ttyout);
1.42 lukem 1720: } else if (strcasecmp(url, "netbsd") == 0) {
1.87 lukem 1721: fputs(
1722: "NetBSD is a freely available and redistributable UNIX-like operating system.\n"
1723: "For more information, see http://www.netbsd.org/index.html\n", ttyout);
1.92 lukem 1724: } else if (strcasecmp(url, "version") == 0) {
1.115 lukem 1725: fprintf(ttyout, "Version: %s %s%s\n",
1726: FTP_PRODUCT, FTP_VERSION,
1727: #ifdef INET6
1728: ""
1729: #else
1730: " (-IPv6)"
1731: #endif
1732: );
1.42 lukem 1733: } else {
1734: fprintf(ttyout, "`%s' is an interesting topic.\n", url);
1735: }
1.92 lukem 1736: fputs("\n", ttyout);
1.42 lukem 1737: return (0);
1738: }
1739:
1740: /*
1741: * Check for file:// and http:// URLs.
1742: */
1743: if (strncasecmp(url, HTTP_URL, sizeof(HTTP_URL) - 1) == 0 ||
1744: strncasecmp(url, FILE_URL, sizeof(FILE_URL) - 1) == 0)
1.52 lukem 1745: return (fetch_url(url, NULL, NULL, NULL));
1.42 lukem 1746:
1747: /*
1748: * Try FTP URL-style and host:file arguments next.
1749: * If ftpproxy is set with an FTP URL, use fetch_url()
1750: * Othewise, use fetch_ftp().
1751: */
1.91 lukem 1752: proxy = getoptionvalue("ftp_proxy");
1753: if (!EMPTYSTRING(proxy) &&
1754: strncasecmp(url, FTP_URL, sizeof(FTP_URL) - 1) == 0)
1.52 lukem 1755: return (fetch_url(url, NULL, NULL, NULL));
1.42 lukem 1756:
1.52 lukem 1757: return (fetch_ftp(url));
1.42 lukem 1758: }
1759:
1760: /*
1761: * Retrieve multiple files from the command line,
1762: * calling go_fetch() for each file.
1763: *
1764: * If an ftp path has a trailing "/", the path will be cd-ed into and
1.41 lukem 1765: * the connection remains open, and the function will return -1
1766: * (to indicate the connection is alive).
1.1 lukem 1767: * If an error occurs the return value will be the offset+1 in
1768: * argv[] of the file that caused a problem (i.e, argv[x]
1769: * returns x+1)
1770: * Otherwise, 0 is returned if all files retrieved successfully.
1771: */
1772: int
1.111 lukem 1773: auto_fetch(int argc, char *argv[])
1.1 lukem 1774: {
1.42 lukem 1775: volatile int argpos;
1776: int rval;
1.22 lukem 1777:
1.2 lukem 1778: argpos = 0;
1.1 lukem 1779:
1.88 lukem 1780: if (sigsetjmp(toplevel, 1)) {
1.2 lukem 1781: if (connected)
1782: disconnect(0, NULL);
1.3 lukem 1783: return (argpos + 1);
1.2 lukem 1784: }
1.88 lukem 1785: (void)xsignal(SIGINT, intr);
1.91 lukem 1786: (void)xsignal(SIGPIPE, lostpeer);
1.1 lukem 1787:
1788: /*
1789: * Loop through as long as there's files to fetch.
1790: */
1.27 lukem 1791: for (rval = 0; (rval == 0) && (argpos < argc); argpos++) {
1.1 lukem 1792: if (strchr(argv[argpos], ':') == NULL)
1793: break;
1.42 lukem 1794: redirect_loop = 0;
1.90 lukem 1795: if (!anonftp)
1796: anonftp = 2; /* Handle "automatic" transfers. */
1.52 lukem 1797: rval = go_fetch(argv[argpos]);
1798: if (outfile != NULL && strcmp(outfile, "-") != 0
1799: && outfile[0] != '|')
1800: outfile = NULL;
1.42 lukem 1801: if (rval > 0)
1.1 lukem 1802: rval = argpos + 1;
1.42 lukem 1803: }
1.3 lukem 1804:
1.1 lukem 1805: if (connected && rval != -1)
1806: disconnect(0, NULL);
1.114 lukem 1807: return (rval);
1808: }
1809:
1810:
1811: int
1812: auto_put(int argc, char **argv, const char *uploadserver)
1813: {
1814: char *uargv[4], *path, *pathsep;
1815: int uargc, rval, len;
1816:
1817: uargc = 0;
1818: uargv[uargc++] = "mput";
1819: uargv[uargc++] = argv[0];
1820: uargv[2] = uargv[3] = NULL;
1821: pathsep = NULL;
1822: rval = 1;
1823:
1824: if (debug)
1825: fprintf(ttyout, "auto_put: target `%s'\n", uploadserver);
1826:
1827: path = xstrdup(uploadserver);
1828: len = strlen(path);
1829: if (path[len - 1] != '/' && path[len - 1] != ':') {
1830: /*
1831: * make sure we always pass a directory to auto_fetch
1832: */
1833: if (argc > 1) { /* more than one file to upload */
1834: int len;
1835:
1836: len = strlen(uploadserver) + 2; /* path + "/" + "\0" */
1837: free(path);
1838: path = (char *)xmalloc(len);
1839: (void)strlcpy(path, uploadserver, len);
1840: (void)strlcat(path, "/", len);
1841: } else { /* single file to upload */
1842: uargv[0] = "put";
1843: pathsep = strrchr(path, '/');
1844: if (pathsep == NULL) {
1845: pathsep = strrchr(path, ':');
1846: if (pathsep == NULL) {
1847: warnx("Invalid URL `%s'", path);
1848: goto cleanup_auto_put;
1849: }
1850: pathsep++;
1851: uargv[2] = xstrdup(pathsep);
1852: pathsep[0] = '/';
1853: } else
1854: uargv[2] = xstrdup(pathsep + 1);
1855: pathsep[1] = '\0';
1856: uargc++;
1857: }
1858: }
1859: if (debug)
1860: fprintf(ttyout, "autoput: url `%s' argv[2] `%s'\n",
1861: path, uargv[2] ? uargv[2] : "<null>");
1862:
1863: /* connect and cwd */
1864: rval = auto_fetch(1, &path);
1865: free(path);
1866: if(rval >= 0)
1867: goto cleanup_auto_put;
1868:
1869: /* XXX : is this the best way? */
1870: if (uargc == 3) {
1871: uargv[1] = argv[0];
1872: put(uargc, uargv);
1873: goto cleanup_auto_put;
1874: }
1875:
1876: for(; argv[0] != NULL; argv++) {
1877: uargv[1] = argv[0];
1878: mput(uargc, uargv);
1879: }
1880: rval = 0;
1881:
1882: cleanup_auto_put:
1883: FREEPTR(uargv[2]);
1.1 lukem 1884: return (rval);
1885: }
CVSweb <webmaster@jp.NetBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to fetch.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [cvs.NetBSD.org] / src / usr.bin / ftp