Annotation of src/usr.bin/ftp/fetch.c, Revision 1.229
1.229 ! christos 1: /* $NetBSD: fetch.c,v 1.228 2017/02/15 11:52:11 nonaka Exp $ */
1.1 lukem 2:
3: /*-
1.207 wiz 4: * Copyright (c) 1997-2015 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: *
1.207 wiz 13: * This code is derived from software contributed to The NetBSD Foundation
14: * by Thomas Klausner.
15: *
1.1 lukem 16: * Redistribution and use in source and binary forms, with or without
17: * modification, are permitted provided that the following conditions
18: * are met:
19: * 1. Redistributions of source code must retain the above copyright
20: * notice, this list of conditions and the following disclaimer.
21: * 2. Redistributions in binary form must reproduce the above copyright
22: * notice, this list of conditions and the following disclaimer in the
23: * documentation and/or other materials provided with the distribution.
24: *
25: * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
26: * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
27: * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
1.14 lukem 28: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
29: * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
1.1 lukem 30: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
32: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
33: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
34: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
35: * POSSIBILITY OF SUCH DAMAGE.
36: */
37:
1.12 lukem 38: #include <sys/cdefs.h>
1.1 lukem 39: #ifndef lint
1.229 ! christos 40: __RCSID("$NetBSD: fetch.c,v 1.228 2017/02/15 11:52:11 nonaka Exp $");
1.1 lukem 41: #endif /* not lint */
42:
43: /*
44: * FTP User Program -- Command line file retrieval
45: */
46:
47: #include <sys/types.h>
48: #include <sys/param.h>
49: #include <sys/socket.h>
1.30 lukem 50: #include <sys/stat.h>
1.32 lukem 51: #include <sys/time.h>
1.1 lukem 52:
53: #include <netinet/in.h>
54:
1.2 lukem 55: #include <arpa/ftp.h>
1.1 lukem 56: #include <arpa/inet.h>
57:
1.195 lukem 58: #include <assert.h>
1.1 lukem 59: #include <ctype.h>
60: #include <err.h>
1.22 lukem 61: #include <errno.h>
1.1 lukem 62: #include <netdb.h>
63: #include <fcntl.h>
64: #include <stdio.h>
65: #include <stdlib.h>
66: #include <string.h>
67: #include <unistd.h>
1.57 christos 68: #include <time.h>
1.1 lukem 69:
1.199 christos 70: #include "ssl.h"
1.1 lukem 71: #include "ftp_var.h"
1.100 lukem 72: #include "version.h"
1.1 lukem 73:
1.27 lukem 74: typedef enum {
75: UNKNOWN_URL_T=-1,
76: HTTP_URL_T,
1.199 christos 77: HTTPS_URL_T,
1.27 lukem 78: FTP_URL_T,
1.53 lukem 79: FILE_URL_T,
80: CLASSIC_URL_T
1.27 lukem 81: } url_t;
82:
1.214 christos 83: struct authinfo {
84: char *auth;
85: char *user;
86: char *pass;
87: };
88:
89: struct urlinfo {
90: char *host;
91: char *port;
92: char *path;
93: url_t utype;
94: in_port_t portnum;
95: };
96:
1.218 christos 97: struct posinfo {
98: off_t rangestart;
99: off_t rangeend;
100: off_t entitylen;
101: };
102:
1.194 joerg 103: __dead static void aborthttp(int);
1.203 christos 104: __dead static void timeouthttp(int);
1.147 christos 105: #ifndef NO_AUTH
1.214 christos 106: static int auth_url(const char *, char **, const struct authinfo *);
1.154 lukem 107: static void base64_encode(const unsigned char *, size_t, unsigned char *);
1.147 christos 108: #endif
1.111 lukem 109: static int go_fetch(const char *);
110: static int fetch_ftp(const char *);
111: static int fetch_url(const char *, const char *, char *, char *);
1.154 lukem 112: static const char *match_token(const char **, const char *);
1.214 christos 113: static int parse_url(const char *, const char *, struct urlinfo *,
114: struct authinfo *);
1.111 lukem 115: static void url_decode(char *);
1.214 christos 116: static void freeauthinfo(struct authinfo *);
117: static void freeurlinfo(struct urlinfo *);
1.12 lukem 118:
1.42 lukem 119: static int redirect_loop;
120:
1.12 lukem 121:
1.150 lukem 122: #define STRNEQUAL(a,b) (strncasecmp((a), (b), sizeof((b))-1) == 0)
123: #define ISLWS(x) ((x)=='\r' || (x)=='\n' || (x)==' ' || (x)=='\t')
124: #define SKIPLWS(x) do { while (ISLWS((*x))) x++; } while (0)
125:
126:
1.25 lukem 127: #define ABOUT_URL "about:" /* propaganda */
128: #define FILE_URL "file://" /* file URL prefix */
1.1 lukem 129: #define FTP_URL "ftp://" /* ftp URL prefix */
130: #define HTTP_URL "http://" /* http URL prefix */
1.199 christos 131: #ifdef WITH_SSL
132: #define HTTPS_URL "https://" /* https URL prefix */
1.1 lukem 133:
1.199 christos 134: #define IS_HTTP_TYPE(urltype) \
135: (((urltype) == HTTP_URL_T) || ((urltype) == HTTPS_URL_T))
136: #else
137: #define IS_HTTP_TYPE(urltype) \
138: ((urltype) == HTTP_URL_T)
139: #endif
1.1 lukem 140:
1.154 lukem 141: /*
142: * Determine if token is the next word in buf (case insensitive).
143: * If so, advance buf past the token and any trailing LWS, and
144: * return a pointer to the token (in buf). Otherwise, return NULL.
1.172 christos 145: * token may be preceded by LWS.
1.154 lukem 146: * token must be followed by LWS or NUL. (I.e, don't partial match).
147: */
148: static const char *
149: match_token(const char **buf, const char *token)
150: {
151: const char *p, *orig;
152: size_t tlen;
153:
154: tlen = strlen(token);
155: p = *buf;
156: SKIPLWS(p);
157: orig = p;
158: if (strncasecmp(p, token, tlen) != 0)
159: return NULL;
160: p += tlen;
161: if (*p != '\0' && !ISLWS(*p))
162: return NULL;
163: SKIPLWS(p);
164: orig = *buf;
165: *buf = p;
166: return orig;
167: }
168:
1.214 christos 169: static void
1.218 christos 170: initposinfo(struct posinfo *pi)
171: {
172: pi->rangestart = pi->rangeend = pi->entitylen = -1;
173: }
174:
175: static void
1.214 christos 176: initauthinfo(struct authinfo *ai, char *auth)
177: {
178: ai->auth = auth;
179: ai->user = ai->pass = 0;
180: }
181:
182: static void
183: freeauthinfo(struct authinfo *a)
184: {
185: FREEPTR(a->user);
186: if (a->pass != NULL)
187: memset(a->pass, 0, strlen(a->pass));
188: FREEPTR(a->pass);
189: }
190:
191: static void
192: initurlinfo(struct urlinfo *ui)
193: {
194: ui->host = ui->port = ui->path = 0;
195: ui->utype = UNKNOWN_URL_T;
196: ui->portnum = 0;
197: }
198:
1.215 christos 199: static void
200: copyurlinfo(struct urlinfo *dui, struct urlinfo *sui)
201: {
202: dui->host = ftp_strdup(sui->host);
203: dui->port = ftp_strdup(sui->port);
204: dui->path = ftp_strdup(sui->path);
205: dui->utype = sui->utype;
206: dui->portnum = sui->portnum;
207: }
208:
1.214 christos 209: static void
210: freeurlinfo(struct urlinfo *ui)
211: {
212: FREEPTR(ui->host);
213: FREEPTR(ui->port);
214: FREEPTR(ui->path);
215: }
216:
1.147 christos 217: #ifndef NO_AUTH
1.27 lukem 218: /*
1.44 lukem 219: * Generate authorization response based on given authentication challenge.
220: * Returns -1 if an error occurred, otherwise 0.
221: * Sets response to a malloc(3)ed string; caller should free.
222: */
223: static int
1.214 christos 224: auth_url(const char *challenge, char **response, const struct authinfo *auth)
1.44 lukem 225: {
1.162 lukem 226: const char *cp, *scheme, *errormsg;
1.154 lukem 227: char *ep, *clear, *realm;
1.187 lukem 228: char uuser[BUFSIZ], *gotpass;
229: const char *upass;
1.82 lukem 230: int rval;
231: size_t len, clen, rlen;
1.44 lukem 232:
233: *response = NULL;
1.154 lukem 234: clear = realm = NULL;
1.44 lukem 235: rval = -1;
1.154 lukem 236: cp = challenge;
237: scheme = "Basic"; /* only support Basic authentication */
1.187 lukem 238: gotpass = NULL;
1.44 lukem 239:
1.163 christos 240: DPRINTF("auth_url: challenge `%s'\n", challenge);
1.44 lukem 241:
1.154 lukem 242: if (! match_token(&cp, scheme)) {
1.175 lukem 243: warnx("Unsupported authentication challenge `%s'",
1.44 lukem 244: challenge);
245: goto cleanup_auth_url;
246: }
247:
1.91 lukem 248: #define REALM "realm=\""
1.150 lukem 249: if (STRNEQUAL(cp, REALM))
1.44 lukem 250: cp += sizeof(REALM) - 1;
251: else {
1.175 lukem 252: warnx("Unsupported authentication challenge `%s'",
1.44 lukem 253: challenge);
254: goto cleanup_auth_url;
255: }
1.154 lukem 256: /* XXX: need to improve quoted-string parsing to support \ quoting, etc. */
1.44 lukem 257: if ((ep = strchr(cp, '\"')) != NULL) {
1.186 lukem 258: len = ep - cp;
1.166 christos 259: realm = (char *)ftp_malloc(len + 1);
1.78 lukem 260: (void)strlcpy(realm, cp, len + 1);
1.44 lukem 261: } else {
1.175 lukem 262: warnx("Unsupported authentication challenge `%s'",
1.44 lukem 263: challenge);
264: goto cleanup_auth_url;
265: }
266:
1.154 lukem 267: fprintf(ttyout, "Username for `%s': ", realm);
1.214 christos 268: if (auth->user != NULL) {
269: (void)strlcpy(uuser, auth->user, sizeof(uuser));
1.186 lukem 270: fprintf(ttyout, "%s\n", uuser);
1.154 lukem 271: } else {
1.54 lukem 272: (void)fflush(ttyout);
1.188 roy 273: if (get_line(stdin, uuser, sizeof(uuser), &errormsg) < 0) {
1.162 lukem 274: warnx("%s; can't authenticate", errormsg);
1.54 lukem 275: goto cleanup_auth_url;
1.90 lukem 276: }
1.54 lukem 277: }
1.214 christos 278: if (auth->pass != NULL)
279: upass = auth->pass;
1.174 lukem 280: else {
1.187 lukem 281: gotpass = getpass("Password: ");
282: if (gotpass == NULL) {
1.174 lukem 283: warnx("Can't read password");
284: goto cleanup_auth_url;
285: }
1.187 lukem 286: upass = gotpass;
1.174 lukem 287: }
1.44 lukem 288:
1.187 lukem 289: clen = strlen(uuser) + strlen(upass) + 2; /* user + ":" + pass + "\0" */
1.166 christos 290: clear = (char *)ftp_malloc(clen);
1.186 lukem 291: (void)strlcpy(clear, uuser, clen);
1.78 lukem 292: (void)strlcat(clear, ":", clen);
1.187 lukem 293: (void)strlcat(clear, upass, clen);
294: if (gotpass)
295: memset(gotpass, 0, strlen(gotpass));
1.44 lukem 296:
1.64 lukem 297: /* scheme + " " + enc + "\0" */
1.74 lukem 298: rlen = strlen(scheme) + 1 + (clen + 2) * 4 / 3 + 1;
1.214 christos 299: *response = ftp_malloc(rlen);
1.78 lukem 300: (void)strlcpy(*response, scheme, rlen);
1.72 lukem 301: len = strlcat(*response, " ", rlen);
1.152 lukem 302: /* use `clen - 1' to not encode the trailing NUL */
1.158 lukem 303: base64_encode((unsigned char *)clear, clen - 1,
304: (unsigned char *)*response + len);
1.80 lukem 305: memset(clear, 0, clen);
1.44 lukem 306: rval = 0;
307:
1.118 lukem 308: cleanup_auth_url:
1.44 lukem 309: FREEPTR(clear);
310: FREEPTR(realm);
311: return (rval);
312: }
313:
314: /*
315: * Encode len bytes starting at clear using base64 encoding into encoded,
316: * which should be at least ((len + 2) * 4 / 3 + 1) in size.
317: */
1.124 lukem 318: static void
1.154 lukem 319: base64_encode(const unsigned char *clear, size_t len, unsigned char *encoded)
1.44 lukem 320: {
1.154 lukem 321: static const unsigned char enc[] =
1.44 lukem 322: "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
1.154 lukem 323: unsigned char *cp;
1.187 lukem 324: size_t i;
1.44 lukem 325:
326: cp = encoded;
327: for (i = 0; i < len; i += 3) {
328: *(cp++) = enc[((clear[i + 0] >> 2))];
329: *(cp++) = enc[((clear[i + 0] << 4) & 0x30)
330: | ((clear[i + 1] >> 4) & 0x0f)];
331: *(cp++) = enc[((clear[i + 1] << 2) & 0x3c)
332: | ((clear[i + 2] >> 6) & 0x03)];
333: *(cp++) = enc[((clear[i + 2] ) & 0x3f)];
334: }
335: *cp = '\0';
336: while (i-- > len)
337: *(--cp) = '=';
338: }
1.147 christos 339: #endif
1.44 lukem 340:
1.50 lukem 341: /*
342: * Decode %xx escapes in given string, `in-place'.
343: */
344: static void
1.111 lukem 345: url_decode(char *url)
1.50 lukem 346: {
347: unsigned char *p, *q;
348:
349: if (EMPTYSTRING(url))
350: return;
1.75 lukem 351: p = q = (unsigned char *)url;
1.50 lukem 352:
1.91 lukem 353: #define HEXTOINT(x) (x - (isdigit(x) ? '0' : (islower(x) ? 'a' : 'A') - 10))
1.50 lukem 354: while (*p) {
355: if (p[0] == '%'
356: && p[1] && isxdigit((unsigned char)p[1])
357: && p[2] && isxdigit((unsigned char)p[2])) {
358: *q++ = HEXTOINT(p[1]) * 16 + HEXTOINT(p[2]);
359: p+=3;
360: } else
361: *q++ = *p++;
362: }
363: *q = '\0';
364: }
365:
1.44 lukem 366:
367: /*
1.193 lukem 368: * Parse URL of form (per RFC 3986):
1.145 lukem 369: * <type>://[<user>[:<password>]@]<host>[:<port>][/<path>]
1.27 lukem 370: * Returns -1 if a parse error occurred, otherwise 0.
1.50 lukem 371: * It's the caller's responsibility to url_decode() the returned
372: * user, pass and path.
1.63 lukem 373: *
1.27 lukem 374: * Sets type to url_t, each of the given char ** pointers to a
375: * malloc(3)ed strings of the relevant section, and port to
1.41 lukem 376: * the number given, or ftpport if ftp://, or httpport if http://.
1.52 lukem 377: *
1.193 lukem 378: * XXX: this is not totally RFC 3986 compliant; <path> will have the
1.53 lukem 379: * leading `/' unless it's an ftp:// URL, as this makes things easier
1.177 lukem 380: * for file:// and http:// URLs. ftp:// URLs have the `/' between the
1.141 wiz 381: * host and the URL-path removed, but any additional leading slashes
382: * in the URL-path are retained (because they imply that we should
1.53 lukem 383: * later do "CWD" with a null argument).
384: *
385: * Examples:
1.141 wiz 386: * input URL output path
1.53 lukem 387: * --------- -----------
1.177 lukem 388: * "http://host" "/"
389: * "http://host/" "/"
390: * "http://host/path" "/path"
1.63 lukem 391: * "file://host/dir/file" "dir/file"
1.177 lukem 392: * "ftp://host" ""
1.63 lukem 393: * "ftp://host/" ""
1.177 lukem 394: * "ftp://host//" "/"
395: * "ftp://host/dir/file" "dir/file"
1.53 lukem 396: * "ftp://host//dir/file" "/dir/file"
1.27 lukem 397: */
1.214 christos 398:
1.27 lukem 399: static int
1.214 christos 400: parse_url(const char *url, const char *desc, struct urlinfo *ui,
401: struct authinfo *auth)
1.27 lukem 402: {
1.187 lukem 403: const char *origurl, *tport;
404: char *cp, *ep, *thost;
1.82 lukem 405: size_t len;
1.27 lukem 406:
1.214 christos 407: if (url == NULL || desc == NULL || ui == NULL || auth == NULL)
1.27 lukem 408: errx(1, "parse_url: invoked with NULL argument!");
1.183 lukem 409: DPRINTF("parse_url: %s `%s'\n", desc, url);
1.27 lukem 410:
1.82 lukem 411: origurl = url;
1.63 lukem 412: tport = NULL;
1.27 lukem 413:
1.150 lukem 414: if (STRNEQUAL(url, HTTP_URL)) {
1.27 lukem 415: url += sizeof(HTTP_URL) - 1;
1.214 christos 416: ui->utype = HTTP_URL_T;
417: ui->portnum = HTTP_PORT;
1.63 lukem 418: tport = httpport;
1.150 lukem 419: } else if (STRNEQUAL(url, FTP_URL)) {
1.27 lukem 420: url += sizeof(FTP_URL) - 1;
1.214 christos 421: ui->utype = FTP_URL_T;
422: ui->portnum = FTP_PORT;
1.63 lukem 423: tport = ftpport;
1.150 lukem 424: } else if (STRNEQUAL(url, FILE_URL)) {
1.27 lukem 425: url += sizeof(FILE_URL) - 1;
1.214 christos 426: ui->utype = FILE_URL_T;
1.220 wiz 427: tport = "";
1.199 christos 428: #ifdef WITH_SSL
429: } else if (STRNEQUAL(url, HTTPS_URL)) {
430: url += sizeof(HTTPS_URL) - 1;
1.214 christos 431: ui->utype = HTTPS_URL_T;
432: ui->portnum = HTTPS_PORT;
1.199 christos 433: tport = httpsport;
434: #endif
1.27 lukem 435: } else {
436: warnx("Invalid %s `%s'", desc, url);
1.118 lukem 437: cleanup_parse_url:
1.214 christos 438: freeauthinfo(auth);
439: freeurlinfo(ui);
1.27 lukem 440: return (-1);
441: }
442:
443: if (*url == '\0')
444: return (0);
445:
446: /* find [user[:pass]@]host[:port] */
447: ep = strchr(url, '/');
448: if (ep == NULL)
1.166 christos 449: thost = ftp_strdup(url);
1.27 lukem 450: else {
1.50 lukem 451: len = ep - url;
1.166 christos 452: thost = (char *)ftp_malloc(len + 1);
1.78 lukem 453: (void)strlcpy(thost, url, len + 1);
1.214 christos 454: if (ui->utype == FTP_URL_T) /* skip first / for ftp URLs */
1.53 lukem 455: ep++;
1.214 christos 456: ui->path = ftp_strdup(ep);
1.27 lukem 457: }
458:
1.191 christos 459: cp = strchr(thost, '@'); /* look for user[:pass]@ in URLs */
1.54 lukem 460: if (cp != NULL) {
1.214 christos 461: if (ui->utype == FTP_URL_T)
1.54 lukem 462: anonftp = 0; /* disable anonftp */
1.214 christos 463: auth->user = thost;
1.27 lukem 464: *cp = '\0';
1.166 christos 465: thost = ftp_strdup(cp + 1);
1.214 christos 466: cp = strchr(auth->user, ':');
1.27 lukem 467: if (cp != NULL) {
468: *cp = '\0';
1.214 christos 469: auth->pass = ftp_strdup(cp + 1);
1.27 lukem 470: }
1.214 christos 471: url_decode(auth->user);
472: if (auth->pass)
473: url_decode(auth->pass);
1.63 lukem 474: }
475:
476: #ifdef INET6
477: /*
478: * Check if thost is an encoded IPv6 address, as per
1.193 lukem 479: * RFC 3986:
1.63 lukem 480: * `[' ipv6-address ']'
481: */
482: if (*thost == '[') {
483: cp = thost + 1;
484: if ((ep = strchr(cp, ']')) == NULL ||
1.106 itojun 485: (ep[1] != '\0' && ep[1] != ':')) {
1.63 lukem 486: warnx("Invalid address `%s' in %s `%s'",
1.82 lukem 487: thost, desc, origurl);
1.63 lukem 488: goto cleanup_parse_url;
489: }
1.103 lukem 490: len = ep - cp; /* change `[xyz]' -> `xyz' */
1.63 lukem 491: memmove(thost, thost + 1, len);
492: thost[len] = '\0';
493: if (! isipv6addr(thost)) {
494: warnx("Invalid IPv6 address `%s' in %s `%s'",
1.82 lukem 495: thost, desc, origurl);
1.63 lukem 496: goto cleanup_parse_url;
497: }
498: cp = ep + 1;
499: if (*cp == ':')
500: cp++;
501: else
502: cp = NULL;
1.27 lukem 503: } else
1.63 lukem 504: #endif /* INET6 */
1.177 lukem 505: if ((cp = strchr(thost, ':')) != NULL)
1.184 lukem 506: *cp++ = '\0';
1.214 christos 507: ui->host = thost;
1.60 itojun 508:
1.27 lukem 509: /* look for [:port] */
510: if (cp != NULL) {
1.184 lukem 511: unsigned long nport;
1.27 lukem 512:
1.184 lukem 513: nport = strtoul(cp, &ep, 10);
514: if (*cp == '\0' || *ep != '\0' ||
515: nport < 1 || nport > MAX_IN_PORT_T) {
1.122 lukem 516: warnx("Unknown port `%s' in %s `%s'",
517: cp, desc, origurl);
1.27 lukem 518: goto cleanup_parse_url;
519: }
1.214 christos 520: ui->portnum = nport;
1.63 lukem 521: tport = cp;
1.27 lukem 522: }
1.82 lukem 523:
1.95 lukem 524: if (tport != NULL)
1.214 christos 525: ui->port = ftp_strdup(tport);
526: if (ui->path == NULL) {
1.177 lukem 527: const char *emptypath = "/";
1.214 christos 528: if (ui->utype == FTP_URL_T) /* skip first / for ftp URLs */
1.177 lukem 529: emptypath++;
1.214 christos 530: ui->path = ftp_strdup(emptypath);
1.177 lukem 531: }
1.27 lukem 532:
1.163 christos 533: DPRINTF("parse_url: user `%s' pass `%s' host %s port %s(%d) "
534: "path `%s'\n",
1.214 christos 535: STRorNULL(auth->user), STRorNULL(auth->pass),
536: STRorNULL(ui->host), STRorNULL(ui->port),
537: ui->portnum ? ui->portnum : -1, STRorNULL(ui->path));
1.27 lukem 538:
539: return (0);
540: }
541:
1.89 lukem 542: sigjmp_buf httpabort;
1.2 lukem 543:
1.210 christos 544: static int
1.214 christos 545: ftp_socket(const struct urlinfo *ui, void **ssl)
1.210 christos 546: {
547: struct addrinfo hints, *res, *res0 = NULL;
548: int error;
549: int s;
1.214 christos 550: const char *host = ui->host;
551: const char *port = ui->port;
552:
553: if (ui->utype != HTTPS_URL_T)
554: ssl = NULL;
1.210 christos 555:
556: memset(&hints, 0, sizeof(hints));
557: hints.ai_flags = 0;
558: hints.ai_family = family;
559: hints.ai_socktype = SOCK_STREAM;
560: hints.ai_protocol = 0;
561:
562: error = getaddrinfo(host, port, &hints, &res0);
563: if (error) {
564: warnx("Can't LOOKUP `%s:%s': %s", host, port,
565: (error == EAI_SYSTEM) ? strerror(errno)
566: : gai_strerror(error));
567: return -1;
568: }
569:
570: if (res0->ai_canonname)
571: host = res0->ai_canonname;
572:
573: s = -1;
574: if (ssl)
575: *ssl = NULL;
576: for (res = res0; res; res = res->ai_next) {
577: char hname[NI_MAXHOST], sname[NI_MAXSERV];
578:
579: ai_unmapped(res);
580: if (getnameinfo(res->ai_addr, res->ai_addrlen,
581: hname, sizeof(hname), sname, sizeof(sname),
582: NI_NUMERICHOST | NI_NUMERICSERV) != 0) {
583: strlcpy(hname, "?", sizeof(hname));
584: strlcpy(sname, "?", sizeof(sname));
585: }
586:
587: if (verbose && res0->ai_next) {
588: #ifdef INET6
589: if(res->ai_family == AF_INET6) {
590: fprintf(ttyout, "Trying [%s]:%s ...\n",
591: hname, sname);
592: } else {
593: #endif
594: fprintf(ttyout, "Trying %s:%s ...\n",
595: hname, sname);
596: #ifdef INET6
597: }
598: #endif
599: }
600:
601: s = socket(res->ai_family, SOCK_STREAM, res->ai_protocol);
602: if (s < 0) {
603: warn(
604: "Can't create socket for connection to "
605: "`%s:%s'", hname, sname);
606: continue;
607: }
608:
609: if (ftp_connect(s, res->ai_addr, res->ai_addrlen,
610: verbose || !res->ai_next) < 0) {
611: close(s);
612: s = -1;
613: continue;
614: }
615:
616: #ifdef WITH_SSL
617: if (ssl) {
618: if ((*ssl = fetch_start_ssl(s, host)) == NULL) {
619: close(s);
620: s = -1;
621: continue;
622: }
623: }
624: #endif
625: break;
626: }
627: if (res0)
628: freeaddrinfo(res0);
629: return s;
630: }
631:
1.211 christos 632: static int
633: handle_noproxy(const char *host, in_port_t portnum)
634: {
635:
636: char *cp, *ep, *np, *np_copy, *np_iter, *no_proxy;
637: unsigned long np_port;
638: size_t hlen, plen;
639: int isproxy = 1;
640:
641: /* check URL against list of no_proxied sites */
642: no_proxy = getoptionvalue("no_proxy");
643: if (EMPTYSTRING(no_proxy))
644: return isproxy;
645:
646: np_iter = np_copy = ftp_strdup(no_proxy);
647: hlen = strlen(host);
648: while ((cp = strsep(&np_iter, " ,")) != NULL) {
649: if (*cp == '\0')
650: continue;
651: if ((np = strrchr(cp, ':')) != NULL) {
652: *np++ = '\0';
653: np_port = strtoul(np, &ep, 10);
654: if (*np == '\0' || *ep != '\0')
655: continue;
656: if (np_port != portnum)
657: continue;
658: }
659: plen = strlen(cp);
660: if (hlen < plen)
661: continue;
662: if (strncasecmp(host + hlen - plen, cp, plen) == 0) {
663: isproxy = 0;
664: break;
665: }
666: }
667: FREEPTR(np_copy);
668: return isproxy;
669: }
670:
1.212 christos 671: static int
1.214 christos 672: handle_proxy(const char *url, const char *penv, struct urlinfo *ui,
673: struct authinfo *pauth)
1.212 christos 674: {
1.214 christos 675: struct urlinfo pui;
1.212 christos 676:
1.214 christos 677: if (isipv6addr(ui->host) && strchr(ui->host, '%') != NULL) {
1.212 christos 678: warnx("Scoped address notation `%s' disallowed via web proxy",
1.214 christos 679: ui->host);
1.212 christos 680: return -1;
681: }
682:
1.214 christos 683: initurlinfo(&pui);
684: if (parse_url(penv, "proxy URL", &pui, pauth) == -1)
1.212 christos 685: return -1;
686:
1.214 christos 687: if ((!IS_HTTP_TYPE(pui.utype) && pui.utype != FTP_URL_T) ||
688: EMPTYSTRING(pui.host) ||
689: (! EMPTYSTRING(pui.path) && strcmp(pui.path, "/") != 0)) {
1.212 christos 690: warnx("Malformed proxy URL `%s'", penv);
1.214 christos 691: freeurlinfo(&pui);
1.212 christos 692: return -1;
693: }
694:
1.214 christos 695: FREEPTR(pui.path);
696: pui.path = ftp_strdup(url);
1.212 christos 697:
1.214 christos 698: freeurlinfo(ui);
699: *ui = pui;
1.212 christos 700:
701: return 0;
702: }
703:
1.214 christos 704: static void
1.216 nonaka 705: print_host(FETCH *fin, const struct urlinfo *ui)
1.214 christos 706: {
707: char *h, *p;
708:
1.216 nonaka 709: if (strchr(ui->host, ':') == NULL) {
710: fetch_printf(fin, "Host: %s", ui->host);
711: } else {
712: /*
713: * strip off IPv6 scope identifier, since it is
714: * local to the node
715: */
716: h = ftp_strdup(ui->host);
717: if (isipv6addr(h) && (p = strchr(h, '%')) != NULL)
718: *p = '\0';
719:
720: fetch_printf(fin, "Host: [%s]", h);
721: free(h);
1.214 christos 722: }
723:
1.216 nonaka 724: if ((ui->utype == HTTP_URL_T && ui->portnum != HTTP_PORT) ||
725: (ui->utype == HTTPS_URL_T && ui->portnum != HTTPS_PORT))
726: fetch_printf(fin, ":%u", ui->portnum);
727: fetch_printf(fin, "\r\n");
1.214 christos 728: }
729:
730: static void
731: print_agent(FETCH *fin)
732: {
733: const char *useragent;
734: if ((useragent = getenv("FTPUSERAGENT")) != NULL) {
735: fetch_printf(fin, "User-Agent: %s\r\n", useragent);
736: } else {
737: fetch_printf(fin, "User-Agent: %s/%s\r\n",
738: FTP_PRODUCT, FTP_VERSION);
739: }
740: }
741:
742: static void
743: print_cache(FETCH *fin, int isproxy)
744: {
745: fetch_printf(fin, isproxy ?
746: "Pragma: no-cache\r\n" :
747: "Cache-Control: no-cache\r\n");
748: }
749:
750: static int
1.216 nonaka 751: print_get(FETCH *fin, int hasleading, int isproxy, const struct urlinfo *oui,
752: const struct urlinfo *ui)
1.214 christos 753: {
1.215 christos 754: const char *leading = hasleading ? ", " : " (";
1.214 christos 755:
756: if (isproxy) {
757: if (verbose) {
758: fprintf(ttyout, "%svia %s:%u", leading,
759: ui->host, ui->portnum);
760: leading = ", ";
761: hasleading++;
762: }
763: fetch_printf(fin, "GET %s HTTP/1.0\r\n", ui->path);
1.216 nonaka 764: print_host(fin, oui);
1.214 christos 765: return hasleading;
766: }
767:
768: fetch_printf(fin, "GET %s HTTP/1.1\r\n", ui->path);
1.216 nonaka 769: print_host(fin, ui);
1.214 christos 770: fetch_printf(fin, "Accept: */*\r\n");
771: fetch_printf(fin, "Connection: close\r\n");
772: if (restart_point) {
773: fputs(leading, ttyout);
774: fetch_printf(fin, "Range: bytes=" LLF "-\r\n",
775: (LLT)restart_point);
776: fprintf(ttyout, "restarting at " LLF, (LLT)restart_point);
777: hasleading++;
778: }
779: return hasleading;
780: }
781:
782: static void
783: getmtime(const char *cp, time_t *mtime)
784: {
785: struct tm parsed;
786: const char *t;
787:
788: memset(&parsed, 0, sizeof(parsed));
789: t = parse_rfc2616time(&parsed, cp);
790:
791: if (t == NULL)
792: return;
793:
794: parsed.tm_isdst = -1;
795: if (*t == '\0')
796: *mtime = timegm(&parsed);
797:
798: #ifndef NO_DEBUG
799: if (ftp_debug && *mtime != -1) {
800: fprintf(ttyout, "parsed time as: %s",
801: rfc2822time(localtime(mtime)));
802: }
803: #endif
804: }
805:
806: static int
1.216 nonaka 807: print_proxy(FETCH *fin, int hasleading, const char *wwwauth,
808: const char *proxyauth)
1.214 christos 809: {
1.216 nonaka 810: const char *leading = hasleading ? ", " : " (";
1.214 christos 811:
812: if (wwwauth) {
813: if (verbose) {
814: fprintf(ttyout, "%swith authorization", leading);
815: hasleading++;
816: }
817: fetch_printf(fin, "Authorization: %s\r\n", wwwauth);
818: }
819: if (proxyauth) {
820: if (verbose) {
821: fprintf(ttyout, "%swith proxy authorization", leading);
822: hasleading++;
823: }
824: fetch_printf(fin, "Proxy-Authorization: %s\r\n", proxyauth);
825: }
826: return hasleading;
827: }
828:
1.219 christos 829: #ifdef WITH_SSL
1.217 christos 830: static void
831: print_connect(FETCH *fin, const struct urlinfo *ui)
832: {
833: char hname[NI_MAXHOST], *p;
834: const char *h;
835:
836: if (isipv6addr(ui->host)) {
837: /*
838: * strip off IPv6 scope identifier,
839: * since it is local to the node
840: */
841: if ((p = strchr(ui->host, '%')) == NULL)
842: snprintf(hname, sizeof(hname), "[%s]", ui->host);
843: else
844: snprintf(hname, sizeof(hname), "[%.*s]",
845: (int)(p - ui->host), ui->host);
846: h = hname;
847: } else
848: h = ui->host;
849:
1.223 christos 850: fetch_printf(fin, "CONNECT %s:%d HTTP/1.1\r\n", h, ui->portnum);
851: fetch_printf(fin, "Host: %s:%d\r\n", h, ui->portnum);
1.217 christos 852: }
1.219 christos 853: #endif
1.217 christos 854:
1.214 christos 855: #define C_OK 0
856: #define C_CLEANUP 1
857: #define C_IMPROPER 2
858:
859: static int
1.215 christos 860: getresponseline(FETCH *fin, char *buf, size_t buflen, int *len)
1.214 christos 861: {
1.215 christos 862: const char *errormsg;
1.214 christos 863:
864: alarmtimer(quit_time ? quit_time : 60);
1.215 christos 865: *len = fetch_getline(fin, buf, buflen, &errormsg);
1.214 christos 866: alarmtimer(0);
1.215 christos 867: if (*len < 0) {
1.214 christos 868: if (*errormsg == '\n')
869: errormsg++;
870: warnx("Receiving HTTP reply: %s", errormsg);
1.215 christos 871: return C_CLEANUP;
1.214 christos 872: }
1.215 christos 873: while (*len > 0 && (ISLWS(buf[*len-1])))
874: buf[--*len] = '\0';
1.214 christos 875:
1.215 christos 876: if (*len)
877: DPRINTF("%s: received `%s'\n", __func__, buf);
878: return C_OK;
879: }
880:
881: static int
882: getresponse(FETCH *fin, char **cp, size_t buflen, int *hcode)
883: {
884: int len, rv;
885: char *ep, *buf = *cp;
886:
887: *hcode = 0;
888: if ((rv = getresponseline(fin, buf, buflen, &len)) != C_OK)
889: return rv;
1.214 christos 890:
891: /* Determine HTTP response code */
1.215 christos 892: *cp = strchr(buf, ' ');
893: if (*cp == NULL)
894: return C_IMPROPER;
895:
896: (*cp)++;
1.214 christos 897:
1.215 christos 898: *hcode = strtol(*cp, &ep, 10);
1.214 christos 899: if (*ep != '\0' && !isspace((unsigned char)*ep))
1.215 christos 900: return C_IMPROPER;
901:
902: return C_OK;
903: }
904:
905: static int
1.218 christos 906: parse_posinfo(const char **cp, struct posinfo *pi)
907: {
908: char *ep;
909: if (!match_token(cp, "bytes"))
910: return -1;
911:
912: if (**cp == '*')
913: (*cp)++;
914: else {
915: pi->rangestart = STRTOLL(*cp, &ep, 10);
916: if (pi->rangestart < 0 || *ep != '-')
917: return -1;
918: *cp = ep + 1;
919: pi->rangeend = STRTOLL(*cp, &ep, 10);
920: if (pi->rangeend < 0 || pi->rangeend < pi->rangestart)
921: return -1;
922: *cp = ep;
923: }
924: if (**cp != '/')
925: return -1;
926: (*cp)++;
927: if (**cp == '*')
928: (*cp)++;
929: else {
930: pi->entitylen = STRTOLL(*cp, &ep, 10);
931: if (pi->entitylen < 0)
932: return -1;
933: *cp = ep;
934: }
935: if (**cp != '\0')
936: return -1;
937:
938: #ifndef NO_DEBUG
939: if (ftp_debug) {
940: fprintf(ttyout, "parsed range as: ");
941: if (pi->rangestart == -1)
942: fprintf(ttyout, "*");
943: else
944: fprintf(ttyout, LLF "-" LLF, (LLT)pi->rangestart,
945: (LLT)pi->rangeend);
946: fprintf(ttyout, "/" LLF "\n", (LLT)pi->entitylen);
947: }
948: #endif
949: return 0;
950: }
951:
1.228 nonaka 952: #ifndef NO_AUTH
953: static void
954: do_auth(int hcode, const char *url, const char *penv, struct authinfo *wauth,
955: struct authinfo *pauth, char **auth, const char *message,
956: volatile int *rval)
957: {
958: struct authinfo aauth;
959: char *response;
960:
961: if (hcode == 401)
962: aauth = *wauth;
963: else
964: aauth = *pauth;
965:
966: if (verbose || aauth.auth == NULL ||
967: aauth.user == NULL || aauth.pass == NULL)
968: fprintf(ttyout, "%s\n", message);
969: if (EMPTYSTRING(*auth)) {
970: warnx("No authentication challenge provided by server");
971: return;
972: }
973:
974: if (aauth.auth != NULL) {
975: char reply[10];
976:
977: fprintf(ttyout, "Authorization failed. Retry (y/n)? ");
978: if (get_line(stdin, reply, sizeof(reply), NULL) < 0) {
979: return;
980: }
981: if (tolower((unsigned char)reply[0]) != 'y')
982: return;
983:
984: aauth.user = NULL;
985: aauth.pass = NULL;
986: }
987:
988: if (auth_url(*auth, &response, &aauth) == 0) {
989: *rval = fetch_url(url, penv,
990: hcode == 401 ? pauth->auth : response,
991: hcode == 401 ? response: wauth->auth);
992: memset(response, 0, strlen(response));
993: FREEPTR(response);
994: }
995: }
996: #endif
997:
1.218 christos 998: static int
1.215 christos 999: negotiate_connection(FETCH *fin, const char *url, const char *penv,
1.218 christos 1000: struct posinfo *pi, time_t *mtime, struct authinfo *wauth,
1.222 christos 1001: struct authinfo *pauth, volatile int *rval, volatile int *ischunked,
1002: char **auth)
1.215 christos 1003: {
1004: int len, hcode, rv;
1005: char buf[FTPBUFLEN], *ep;
1006: const char *cp, *token;
1007: char *location, *message;
1008:
1009: *auth = message = location = NULL;
1010:
1011: /* Read the response */
1012: ep = buf;
1013: switch (getresponse(fin, &ep, sizeof(buf), &hcode)) {
1014: case C_CLEANUP:
1015: goto cleanup_fetch_url;
1016: case C_IMPROPER:
1.214 christos 1017: goto improper;
1.215 christos 1018: case C_OK:
1019: message = ftp_strdup(ep);
1020: break;
1021: }
1.214 christos 1022:
1023: /* Read the rest of the header. */
1024:
1025: for (;;) {
1.215 christos 1026: if ((rv = getresponseline(fin, buf, sizeof(buf), &len)) != C_OK)
1.214 christos 1027: goto cleanup_fetch_url;
1028: if (len == 0)
1029: break;
1030:
1031: /*
1032: * Look for some headers
1033: */
1034:
1035: cp = buf;
1036:
1037: if (match_token(&cp, "Content-Length:")) {
1038: filesize = STRTOLL(cp, &ep, 10);
1039: if (filesize < 0 || *ep != '\0')
1040: goto improper;
1041: DPRINTF("%s: parsed len as: " LLF "\n",
1042: __func__, (LLT)filesize);
1043:
1044: } else if (match_token(&cp, "Content-Range:")) {
1.218 christos 1045: if (parse_posinfo(&cp, pi) == -1)
1.214 christos 1046: goto improper;
1047: if (! restart_point) {
1048: warnx(
1049: "Received unexpected Content-Range header");
1050: goto cleanup_fetch_url;
1051: }
1052:
1053: } else if (match_token(&cp, "Last-Modified:")) {
1054: getmtime(cp, mtime);
1055:
1056: } else if (match_token(&cp, "Location:")) {
1057: location = ftp_strdup(cp);
1058: DPRINTF("%s: parsed location as `%s'\n",
1059: __func__, cp);
1060:
1061: } else if (match_token(&cp, "Transfer-Encoding:")) {
1062: if (match_token(&cp, "binary")) {
1063: warnx(
1064: "Bogus transfer encoding `binary' (fetching anyway)");
1065: continue;
1066: }
1067: if (! (token = match_token(&cp, "chunked"))) {
1068: warnx(
1069: "Unsupported transfer encoding `%s'",
1070: token);
1071: goto cleanup_fetch_url;
1072: }
1073: (*ischunked)++;
1074: DPRINTF("%s: using chunked encoding\n",
1075: __func__);
1076:
1077: } else if (match_token(&cp, "Proxy-Authenticate:")
1078: || match_token(&cp, "WWW-Authenticate:")) {
1079: if (! (token = match_token(&cp, "Basic"))) {
1080: DPRINTF("%s: skipping unknown auth "
1081: "scheme `%s'\n", __func__, token);
1082: continue;
1083: }
1.215 christos 1084: FREEPTR(*auth);
1085: *auth = ftp_strdup(token);
1.214 christos 1086: DPRINTF("%s: parsed auth as `%s'\n",
1087: __func__, cp);
1088: }
1089:
1090: }
1091: /* finished parsing header */
1092:
1093: switch (hcode) {
1094: case 200:
1095: break;
1096: case 206:
1097: if (! restart_point) {
1098: warnx("Not expecting partial content header");
1099: goto cleanup_fetch_url;
1100: }
1101: break;
1102: case 300:
1103: case 301:
1104: case 302:
1105: case 303:
1106: case 305:
1107: case 307:
1108: if (EMPTYSTRING(location)) {
1109: warnx(
1110: "No redirection Location provided by server");
1111: goto cleanup_fetch_url;
1112: }
1113: if (redirect_loop++ > 5) {
1114: warnx("Too many redirections requested");
1115: goto cleanup_fetch_url;
1116: }
1117: if (hcode == 305) {
1118: if (verbose)
1119: fprintf(ttyout, "Redirected via %s\n",
1120: location);
1121: *rval = fetch_url(url, location,
1122: pauth->auth, wauth->auth);
1123: } else {
1124: if (verbose)
1125: fprintf(ttyout, "Redirected to %s\n",
1126: location);
1127: *rval = go_fetch(location);
1128: }
1129: goto cleanup_fetch_url;
1130: #ifndef NO_AUTH
1131: case 401:
1132: case 407:
1.228 nonaka 1133: do_auth(hcode, url, penv, wauth, pauth, auth, message, rval);
1.214 christos 1134: goto cleanup_fetch_url;
1135: #endif
1136: default:
1137: if (message)
1138: warnx("Error retrieving file `%s'", message);
1139: else
1140: warnx("Unknown error retrieving file");
1141: goto cleanup_fetch_url;
1142: }
1143: rv = C_OK;
1144: goto out;
1145:
1146: cleanup_fetch_url:
1147: rv = C_CLEANUP;
1148: goto out;
1149: improper:
1150: rv = C_IMPROPER;
1151: goto out;
1152: out:
1153: FREEPTR(message);
1154: FREEPTR(location);
1155: return rv;
1156: } /* end of ftp:// or http:// specific setup */
1157:
1.215 christos 1158: #ifdef WITH_SSL
1159: static int
1.228 nonaka 1160: connectmethod(FETCH *fin, const char *url, const char *penv,
1161: struct urlinfo *oui, struct urlinfo *ui, struct authinfo *wauth,
1162: struct authinfo *pauth, char **auth, int *hasleading, volatile int *rval)
1.215 christos 1163: {
1164: void *ssl;
1165: int hcode, rv;
1166: const char *cp;
1167: char buf[FTPBUFLEN], *ep;
1168: char *message = NULL;
1169:
1.217 christos 1170: print_connect(fin, oui);
1.215 christos 1171:
1172: print_agent(fin);
1.216 nonaka 1173: *hasleading = print_proxy(fin, *hasleading, NULL, pauth->auth);
1.215 christos 1174:
1175: if (verbose && *hasleading)
1176: fputs(")\n", ttyout);
1177: *hasleading = 0;
1178:
1179: fetch_printf(fin, "\r\n");
1180: if (fetch_flush(fin) == EOF) {
1181: warn("Writing HTTP request");
1182: alarmtimer(0);
1183: goto cleanup_fetch_url;
1184: }
1185: alarmtimer(0);
1186:
1187: /* Read the response */
1188: ep = buf;
1189: switch (getresponse(fin, &ep, sizeof(buf), &hcode)) {
1190: case C_CLEANUP:
1191: goto cleanup_fetch_url;
1192: case C_IMPROPER:
1193: goto improper;
1194: case C_OK:
1195: message = ftp_strdup(ep);
1196: break;
1197: }
1198:
1199: for (;;) {
1200: int len;
1201: if (getresponseline(fin, buf, sizeof(buf), &len) != C_OK)
1202: goto cleanup_fetch_url;
1203: if (len == 0)
1204: break;
1.221 nonaka 1205:
1206: cp = buf;
1.215 christos 1207: if (match_token(&cp, "Proxy-Authenticate:")) {
1208: const char *token;
1209: if (!(token = match_token(&cp, "Basic"))) {
1210: DPRINTF(
1211: "%s: skipping unknown auth scheme `%s'\n",
1212: __func__, token);
1213: continue;
1214: }
1215: FREEPTR(*auth);
1216: *auth = ftp_strdup(token);
1217: DPRINTF("%s: parsed auth as " "`%s'\n", __func__, cp);
1218: }
1219: }
1220:
1221: /* finished parsing header */
1222: switch (hcode) {
1223: case 200:
1224: break;
1.226 nonaka 1225: #ifndef NO_AUTH
1226: case 407:
1.228 nonaka 1227: do_auth(hcode, url, penv, wauth, pauth, auth, message, rval);
1.226 nonaka 1228: goto cleanup_fetch_url;
1229: #endif
1.215 christos 1230: default:
1231: if (message)
1232: warnx("Error proxy connect " "`%s'", message);
1233: else
1234: warnx("Unknown error proxy " "connect");
1235: goto cleanup_fetch_url;
1236: }
1237:
1.228 nonaka 1238: if ((ssl = fetch_start_ssl(fetch_fileno(fin), oui->host)) == NULL)
1.215 christos 1239: goto cleanup_fetch_url;
1240: fetch_set_ssl(fin, ssl);
1241:
1242: rv = C_OK;
1243: goto out;
1244: improper:
1245: rv = C_IMPROPER;
1246: goto out;
1247: cleanup_fetch_url:
1248: rv = C_CLEANUP;
1249: goto out;
1250: out:
1251: FREEPTR(message);
1252: return rv;
1253: }
1254: #endif
1.214 christos 1255:
1.1 lukem 1256: /*
1.50 lukem 1257: * Retrieve URL, via a proxy if necessary, using HTTP.
1258: * If proxyenv is set, use that for the proxy, otherwise try ftp_proxy or
1.200 christos 1259: * http_proxy/https_proxy as appropriate.
1.50 lukem 1260: * Supports HTTP redirects.
1.127 tacha 1261: * Returns 1 on failure, 0 on completed xfer, -1 if ftp connection
1.41 lukem 1262: * is still open (e.g, ftp xfer with trailing /)
1.1 lukem 1263: */
1.12 lukem 1264: static int
1.111 lukem 1265: fetch_url(const char *url, const char *proxyenv, char *proxyauth, char *wwwauth)
1.1 lukem 1266: {
1.203 christos 1267: sigfunc volatile oldint;
1268: sigfunc volatile oldpipe;
1269: sigfunc volatile oldalrm;
1270: sigfunc volatile oldquit;
1.173 christos 1271: int volatile s;
1.95 lukem 1272: struct stat sb;
1.173 christos 1273: int volatile isproxy;
1.222 christos 1274: int volatile rval, ischunked;
1.187 lukem 1275: size_t flen;
1.73 lukem 1276: static size_t bufsize;
1277: static char *xferbuf;
1.214 christos 1278: const char *cp;
1.173 christos 1279: char *ep;
1.215 christos 1280: char *auth;
1.173 christos 1281: char *volatile savefile;
1282: char *volatile location;
1283: char *volatile message;
1284: char *volatile decodedpath;
1.214 christos 1285: struct authinfo wauth, pauth;
1.218 christos 1286: struct posinfo pi;
1287: off_t hashbytes;
1.173 christos 1288: int (*volatile closefunc)(FILE *);
1.199 christos 1289: FETCH *volatile fin;
1.173 christos 1290: FILE *volatile fout;
1.203 christos 1291: const char *volatile penv = proxyenv;
1.216 nonaka 1292: struct urlinfo ui, oui;
1.42 lukem 1293: time_t mtime;
1.210 christos 1294: void *ssl = NULL;
1.1 lukem 1295:
1.203 christos 1296: DPRINTF("%s: `%s' proxyenv `%s'\n", __func__, url, STRorNULL(penv));
1.183 lukem 1297:
1.203 christos 1298: oldquit = oldalrm = oldint = oldpipe = NULL;
1.22 lukem 1299: closefunc = NULL;
1.199 christos 1300: fin = NULL;
1301: fout = NULL;
1.1 lukem 1302: s = -1;
1.176 lukem 1303: savefile = NULL;
1.44 lukem 1304: auth = location = message = NULL;
1.214 christos 1305: ischunked = isproxy = 0;
1.42 lukem 1306: rval = 1;
1.214 christos 1307:
1308: initurlinfo(&ui);
1.225 christos 1309: initurlinfo(&oui);
1.214 christos 1310: initauthinfo(&wauth, wwwauth);
1311: initauthinfo(&pauth, proxyauth);
1312:
1.215 christos 1313: decodedpath = NULL;
1.1 lukem 1314:
1.203 christos 1315: if (sigsetjmp(httpabort, 1))
1316: goto cleanup_fetch_url;
1317:
1.214 christos 1318: if (parse_url(url, "URL", &ui, &wauth) == -1)
1.42 lukem 1319: goto cleanup_fetch_url;
1.5 lukem 1320:
1.216 nonaka 1321: copyurlinfo(&oui, &ui);
1.215 christos 1322:
1.214 christos 1323: if (ui.utype == FILE_URL_T && ! EMPTYSTRING(ui.host)
1324: && strcasecmp(ui.host, "localhost") != 0) {
1.27 lukem 1325: warnx("No support for non local file URL `%s'", url);
1.42 lukem 1326: goto cleanup_fetch_url;
1.9 lukem 1327: }
1.27 lukem 1328:
1.214 christos 1329: if (EMPTYSTRING(ui.path)) {
1330: if (ui.utype == FTP_URL_T) {
1.52 lukem 1331: rval = fetch_ftp(url);
1.42 lukem 1332: goto cleanup_fetch_url;
1333: }
1.214 christos 1334: if (!IS_HTTP_TYPE(ui.utype) || outfile == NULL) {
1.27 lukem 1335: warnx("Invalid URL (no file after host) `%s'", url);
1.42 lukem 1336: goto cleanup_fetch_url;
1.27 lukem 1337: }
1.9 lukem 1338: }
1.1 lukem 1339:
1.214 christos 1340: decodedpath = ftp_strdup(ui.path);
1.50 lukem 1341: url_decode(decodedpath);
1342:
1.22 lukem 1343: if (outfile)
1.206 christos 1344: savefile = outfile;
1.22 lukem 1345: else {
1.50 lukem 1346: cp = strrchr(decodedpath, '/'); /* find savefile */
1.29 lukem 1347: if (cp != NULL)
1.166 christos 1348: savefile = ftp_strdup(cp + 1);
1.22 lukem 1349: else
1.166 christos 1350: savefile = ftp_strdup(decodedpath);
1.227 christos 1351: /*
1352: * Use the first URL we requested not the name after a
1353: * possible redirect, but careful to save it because our
1354: * "safety" check is the match to outfile.
1355: */
1356: outfile = ftp_strdup(savefile);
1.22 lukem 1357: }
1.203 christos 1358: DPRINTF("%s: savefile `%s'\n", __func__, savefile);
1.9 lukem 1359: if (EMPTYSTRING(savefile)) {
1.214 christos 1360: if (ui.utype == FTP_URL_T) {
1.52 lukem 1361: rval = fetch_ftp(url);
1.42 lukem 1362: goto cleanup_fetch_url;
1363: }
1.175 lukem 1364: warnx("No file after directory (you must specify an "
1.140 grant 1365: "output file) `%s'", url);
1.42 lukem 1366: goto cleanup_fetch_url;
1.9 lukem 1367: }
1.1 lukem 1368:
1.95 lukem 1369: restart_point = 0;
1.25 lukem 1370: filesize = -1;
1.218 christos 1371: initposinfo(&pi);
1.25 lukem 1372: mtime = -1;
1.95 lukem 1373: if (restartautofetch) {
1.206 christos 1374: if (stat(savefile, &sb) == 0)
1.95 lukem 1375: restart_point = sb.st_size;
1376: }
1.214 christos 1377: if (ui.utype == FILE_URL_T) { /* file:// URLs */
1.25 lukem 1378: direction = "copied";
1.199 christos 1379: fin = fetch_open(decodedpath, "r");
1.25 lukem 1380: if (fin == NULL) {
1.175 lukem 1381: warn("Can't open `%s'", decodedpath);
1.42 lukem 1382: goto cleanup_fetch_url;
1.5 lukem 1383: }
1.199 christos 1384: if (fstat(fetch_fileno(fin), &sb) == 0) {
1.25 lukem 1385: mtime = sb.st_mtime;
1386: filesize = sb.st_size;
1387: }
1.95 lukem 1388: if (restart_point) {
1.199 christos 1389: if (lseek(fetch_fileno(fin), restart_point, SEEK_SET) < 0) {
1.175 lukem 1390: warn("Can't seek to restart `%s'",
1.95 lukem 1391: decodedpath);
1392: goto cleanup_fetch_url;
1393: }
1394: }
1395: if (verbose) {
1396: fprintf(ttyout, "Copying %s", decodedpath);
1397: if (restart_point)
1.121 lukem 1398: fprintf(ttyout, " (restarting at " LLF ")",
1399: (LLT)restart_point);
1.95 lukem 1400: fputs("\n", ttyout);
1401: }
1.199 christos 1402: if (0 == rcvbuf_size) {
1403: rcvbuf_size = 8 * 1024; /* XXX */
1404: }
1.25 lukem 1405: } else { /* ftp:// or http:// URLs */
1.65 lukem 1406: int hasleading;
1407:
1.203 christos 1408: if (penv == NULL) {
1.201 christos 1409: #ifdef WITH_SSL
1.214 christos 1410: if (ui.utype == HTTPS_URL_T)
1.203 christos 1411: penv = getoptionvalue("https_proxy");
1.201 christos 1412: #endif
1.214 christos 1413: if (penv == NULL && IS_HTTP_TYPE(ui.utype))
1.203 christos 1414: penv = getoptionvalue("http_proxy");
1.214 christos 1415: else if (ui.utype == FTP_URL_T)
1.203 christos 1416: penv = getoptionvalue("ftp_proxy");
1.42 lukem 1417: }
1.25 lukem 1418: direction = "retrieved";
1.203 christos 1419: if (! EMPTYSTRING(penv)) { /* use proxy */
1.27 lukem 1420:
1.214 christos 1421: isproxy = handle_noproxy(ui.host, ui.portnum);
1.27 lukem 1422:
1.214 christos 1423: if (isproxy == 0 && ui.utype == FTP_URL_T) {
1.211 christos 1424: rval = fetch_ftp(url);
1425: goto cleanup_fetch_url;
1.25 lukem 1426: }
1.1 lukem 1427:
1.27 lukem 1428: if (isproxy) {
1.180 lukem 1429: if (restart_point) {
1.212 christos 1430: warnx(
1431: "Can't restart via proxy URL `%s'",
1.203 christos 1432: penv);
1.180 lukem 1433: goto cleanup_fetch_url;
1434: }
1.214 christos 1435: if (handle_proxy(url, penv, &ui, &pauth) < 0)
1.112 itojun 1436: goto cleanup_fetch_url;
1.27 lukem 1437: }
1.203 christos 1438: } /* ! EMPTYSTRING(penv) */
1.25 lukem 1439:
1.214 christos 1440: s = ftp_socket(&ui, &ssl);
1.98 itojun 1441: if (s < 0) {
1.214 christos 1442: warnx("Can't connect to `%s:%s'", ui.host, ui.port);
1.98 itojun 1443: goto cleanup_fetch_url;
1444: }
1.24 lukem 1445:
1.203 christos 1446: oldalrm = xsignal(SIGALRM, timeouthttp);
1447: alarmtimer(quit_time ? quit_time : 60);
1.199 christos 1448: fin = fetch_fdopen(s, "r+");
1449: fetch_set_ssl(fin, ssl);
1.203 christos 1450: alarmtimer(0);
1.199 christos 1451:
1.203 christos 1452: alarmtimer(quit_time ? quit_time : 60);
1.25 lukem 1453: /*
1.27 lukem 1454: * Construct and send the request.
1.25 lukem 1455: */
1.65 lukem 1456: if (verbose)
1457: fprintf(ttyout, "Requesting %s\n", url);
1.112 itojun 1458:
1.215 christos 1459: hasleading = 0;
1460: #ifdef WITH_SSL
1461: if (isproxy && oui.utype == HTTPS_URL_T) {
1.228 nonaka 1462: switch (connectmethod(fin, url, penv, &oui, &ui,
1463: &wauth, &pauth, &auth, &hasleading, &rval)) {
1.215 christos 1464: case C_CLEANUP:
1465: goto cleanup_fetch_url;
1466: case C_IMPROPER:
1467: goto improper;
1468: case C_OK:
1469: break;
1470: default:
1471: abort();
1472: }
1473: }
1474: #endif
1475:
1.216 nonaka 1476: hasleading = print_get(fin, hasleading, isproxy, &oui, &ui);
1.214 christos 1477:
1478: if (flushcache)
1479: print_cache(fin, isproxy);
1480:
1481: print_agent(fin);
1.216 nonaka 1482: hasleading = print_proxy(fin, hasleading, wauth.auth,
1.215 christos 1483: auth ? NULL : pauth.auth);
1.214 christos 1484: if (hasleading) {
1.216 nonaka 1485: hasleading = 0;
1.214 christos 1486: if (verbose)
1487: fputs(")\n", ttyout);
1.25 lukem 1488: }
1.214 christos 1489:
1.199 christos 1490: fetch_printf(fin, "\r\n");
1491: if (fetch_flush(fin) == EOF) {
1.25 lukem 1492: warn("Writing HTTP request");
1.203 christos 1493: alarmtimer(0);
1.42 lukem 1494: goto cleanup_fetch_url;
1.25 lukem 1495: }
1.203 christos 1496: alarmtimer(0);
1.1 lukem 1497:
1.218 christos 1498: switch (negotiate_connection(fin, url, penv, &pi,
1.215 christos 1499: &mtime, &wauth, &pauth, &rval, &ischunked, &auth)) {
1.214 christos 1500: case C_OK:
1501: break;
1502: case C_CLEANUP:
1.42 lukem 1503: goto cleanup_fetch_url;
1.214 christos 1504: case C_IMPROPER:
1.42 lukem 1505: goto improper;
1.52 lukem 1506: default:
1.214 christos 1507: abort();
1.44 lukem 1508: }
1.214 christos 1509: }
1.42 lukem 1510:
1.206 christos 1511: /* Open the output file. */
1512:
1513: /*
1514: * Only trust filenames with special meaning if they came from
1515: * the command line
1516: */
1517: if (outfile == savefile) {
1518: if (strcmp(savefile, "-") == 0) {
1519: fout = stdout;
1520: } else if (*savefile == '|') {
1521: oldpipe = xsignal(SIGPIPE, SIG_IGN);
1522: fout = popen(savefile + 1, "w");
1523: if (fout == NULL) {
1524: warn("Can't execute `%s'", savefile + 1);
1525: goto cleanup_fetch_url;
1526: }
1527: closefunc = pclose;
1.22 lukem 1528: }
1.206 christos 1529: }
1530: if (fout == NULL) {
1.218 christos 1531: if ((pi.rangeend != -1 && pi.rangeend <= restart_point) ||
1532: (pi.rangestart == -1 &&
1533: filesize != -1 && filesize <= restart_point)) {
1.129 yamt 1534: /* already done */
1535: if (verbose)
1536: fprintf(ttyout, "already done\n");
1537: rval = 0;
1538: goto cleanup_fetch_url;
1539: }
1.218 christos 1540: if (restart_point && pi.rangestart != -1) {
1541: if (pi.entitylen != -1)
1542: filesize = pi.entitylen;
1543: if (pi.rangestart != restart_point) {
1.95 lukem 1544: warnx(
1545: "Size of `%s' differs from save file `%s'",
1546: url, savefile);
1547: goto cleanup_fetch_url;
1548: }
1549: fout = fopen(savefile, "a");
1550: } else
1551: fout = fopen(savefile, "w");
1.22 lukem 1552: if (fout == NULL) {
1.27 lukem 1553: warn("Can't open `%s'", savefile);
1.42 lukem 1554: goto cleanup_fetch_url;
1.22 lukem 1555: }
1556: closefunc = fclose;
1.1 lukem 1557: }
1558:
1.22 lukem 1559: /* Trap signals */
1.203 christos 1560: oldquit = xsignal(SIGQUIT, psummary);
1561: oldint = xsignal(SIGINT, aborthttp);
1.2 lukem 1562:
1.195 lukem 1563: assert(rcvbuf_size > 0);
1.187 lukem 1564: if ((size_t)rcvbuf_size > bufsize) {
1.73 lukem 1565: if (xferbuf)
1566: (void)free(xferbuf);
1567: bufsize = rcvbuf_size;
1.166 christos 1568: xferbuf = ftp_malloc(bufsize);
1.73 lukem 1569: }
1570:
1.1 lukem 1571: bytes = 0;
1572: hashbytes = mark;
1.204 christos 1573: if (oldalrm) {
1574: (void)xsignal(SIGALRM, oldalrm);
1575: oldalrm = NULL;
1576: }
1.1 lukem 1577: progressmeter(-1);
1.2 lukem 1578:
1.24 lukem 1579: /* Finally, suck down the file. */
1.45 lukem 1580: do {
1.77 lukem 1581: long chunksize;
1.181 lukem 1582: short lastchunk;
1.45 lukem 1583:
1584: chunksize = 0;
1.181 lukem 1585: lastchunk = 0;
1586: /* read chunk-size */
1.45 lukem 1587: if (ischunked) {
1.199 christos 1588: if (fetch_getln(xferbuf, bufsize, fin) == NULL) {
1.181 lukem 1589: warnx("Unexpected EOF reading chunk-size");
1.45 lukem 1590: goto cleanup_fetch_url;
1591: }
1.181 lukem 1592: errno = 0;
1.73 lukem 1593: chunksize = strtol(xferbuf, &ep, 16);
1.181 lukem 1594: if (ep == xferbuf) {
1595: warnx("Invalid chunk-size");
1596: goto cleanup_fetch_url;
1597: }
1598: if (errno == ERANGE || chunksize < 0) {
1599: errno = ERANGE;
1600: warn("Chunk-size `%.*s'",
1.182 lukem 1601: (int)(ep-xferbuf), xferbuf);
1.181 lukem 1602: goto cleanup_fetch_url;
1603: }
1.103 lukem 1604:
1605: /*
1.123 lukem 1606: * XXX: Work around bug in Apache 1.3.9 and
1607: * 1.3.11, which incorrectly put trailing
1.181 lukem 1608: * space after the chunk-size.
1.103 lukem 1609: */
1.123 lukem 1610: while (*ep == ' ')
1.103 lukem 1611: ep++;
1612:
1.181 lukem 1613: /* skip [ chunk-ext ] */
1614: if (*ep == ';') {
1615: while (*ep && *ep != '\r')
1616: ep++;
1617: }
1618:
1.45 lukem 1619: if (strcmp(ep, "\r\n") != 0) {
1.181 lukem 1620: warnx("Unexpected data following chunk-size");
1.45 lukem 1621: goto cleanup_fetch_url;
1622: }
1.203 christos 1623: DPRINTF("%s: got chunk-size of " LLF "\n", __func__,
1.183 lukem 1624: (LLT)chunksize);
1.181 lukem 1625: if (chunksize == 0) {
1626: lastchunk = 1;
1627: goto chunkdone;
1628: }
1.45 lukem 1629: }
1.59 lukem 1630: /* transfer file or chunk */
1631: while (1) {
1632: struct timeval then, now, td;
1.205 christos 1633: volatile off_t bufrem;
1.59 lukem 1634:
1.71 lukem 1635: if (rate_get)
1636: (void)gettimeofday(&then, NULL);
1.187 lukem 1637: bufrem = rate_get ? rate_get : (off_t)bufsize;
1.101 lukem 1638: if (ischunked)
1639: bufrem = MIN(chunksize, bufrem);
1.59 lukem 1640: while (bufrem > 0) {
1.199 christos 1641: flen = fetch_read(xferbuf, sizeof(char),
1.187 lukem 1642: MIN((off_t)bufsize, bufrem), fin);
1643: if (flen <= 0)
1.59 lukem 1644: goto chunkdone;
1.187 lukem 1645: bytes += flen;
1646: bufrem -= flen;
1647: if (fwrite(xferbuf, sizeof(char), flen, fout)
1648: != flen) {
1.59 lukem 1649: warn("Writing `%s'", savefile);
1650: goto cleanup_fetch_url;
1651: }
1.101 lukem 1652: if (hash && !progress) {
1653: while (bytes >= hashbytes) {
1654: (void)putc('#', ttyout);
1655: hashbytes += mark;
1656: }
1657: (void)fflush(ttyout);
1658: }
1659: if (ischunked) {
1.187 lukem 1660: chunksize -= flen;
1.101 lukem 1661: if (chunksize <= 0)
1662: break;
1.45 lukem 1663: }
1.59 lukem 1664: }
1665: if (rate_get) {
1666: while (1) {
1667: (void)gettimeofday(&now, NULL);
1668: timersub(&now, &then, &td);
1669: if (td.tv_sec > 0)
1670: break;
1671: usleep(1000000 - td.tv_usec);
1672: }
1673: }
1.101 lukem 1674: if (ischunked && chunksize <= 0)
1675: break;
1.1 lukem 1676: }
1.45 lukem 1677: /* read CRLF after chunk*/
1.59 lukem 1678: chunkdone:
1.45 lukem 1679: if (ischunked) {
1.199 christos 1680: if (fetch_getln(xferbuf, bufsize, fin) == NULL) {
1.203 christos 1681: alarmtimer(0);
1.181 lukem 1682: warnx("Unexpected EOF reading chunk CRLF");
1683: goto cleanup_fetch_url;
1684: }
1.73 lukem 1685: if (strcmp(xferbuf, "\r\n") != 0) {
1.45 lukem 1686: warnx("Unexpected data following chunk");
1687: goto cleanup_fetch_url;
1.1 lukem 1688: }
1.181 lukem 1689: if (lastchunk)
1690: break;
1.1 lukem 1691: }
1.45 lukem 1692: } while (ischunked);
1.181 lukem 1693:
1694: /* XXX: deal with optional trailer & CRLF here? */
1695:
1.1 lukem 1696: if (hash && !progress && bytes > 0) {
1697: if (bytes < mark)
1.22 lukem 1698: (void)putc('#', ttyout);
1699: (void)putc('\n', ttyout);
1.1 lukem 1700: }
1.199 christos 1701: if (fetch_error(fin)) {
1.25 lukem 1702: warn("Reading file");
1.42 lukem 1703: goto cleanup_fetch_url;
1.1 lukem 1704: }
1.2 lukem 1705: progressmeter(1);
1.25 lukem 1706: (void)fflush(fout);
1707: if (closefunc == fclose && mtime != -1) {
1708: struct timeval tval[2];
1709:
1710: (void)gettimeofday(&tval[0], NULL);
1711: tval[1].tv_sec = mtime;
1712: tval[1].tv_usec = 0;
1.31 lukem 1713: (*closefunc)(fout);
1714: fout = NULL;
1715:
1716: if (utimes(savefile, tval) == -1) {
1.25 lukem 1717: fprintf(ttyout,
1718: "Can't change modification time to %s",
1.179 lukem 1719: rfc2822time(localtime(&mtime)));
1.25 lukem 1720: }
1721: }
1722: if (bytes > 0)
1723: ptransfer(0);
1.136 lukem 1724: bytes = 0;
1.1 lukem 1725:
1.42 lukem 1726: rval = 0;
1727: goto cleanup_fetch_url;
1.11 lukem 1728:
1.118 lukem 1729: improper:
1.214 christos 1730: warnx("Improper response from `%s:%s'", ui.host, ui.port);
1.11 lukem 1731:
1.118 lukem 1732: cleanup_fetch_url:
1.203 christos 1733: if (oldint)
1734: (void)xsignal(SIGINT, oldint);
1735: if (oldpipe)
1736: (void)xsignal(SIGPIPE, oldpipe);
1737: if (oldalrm)
1738: (void)xsignal(SIGALRM, oldalrm);
1739: if (oldquit)
1740: (void)xsignal(SIGQUIT, oldpipe);
1.24 lukem 1741: if (fin != NULL)
1.199 christos 1742: fetch_close(fin);
1.24 lukem 1743: else if (s != -1)
1.1 lukem 1744: close(s);
1.22 lukem 1745: if (closefunc != NULL && fout != NULL)
1746: (*closefunc)(fout);
1.206 christos 1747: if (savefile != outfile)
1748: FREEPTR(savefile);
1.214 christos 1749: freeurlinfo(&ui);
1.215 christos 1750: freeurlinfo(&oui);
1.214 christos 1751: freeauthinfo(&wauth);
1752: freeauthinfo(&pauth);
1.50 lukem 1753: FREEPTR(decodedpath);
1.44 lukem 1754: FREEPTR(auth);
1.42 lukem 1755: FREEPTR(location);
1756: FREEPTR(message);
1757: return (rval);
1.1 lukem 1758: }
1759:
1760: /*
1.50 lukem 1761: * Abort a HTTP retrieval
1.2 lukem 1762: */
1.194 joerg 1763: static void
1.111 lukem 1764: aborthttp(int notused)
1.2 lukem 1765: {
1.88 lukem 1766: char msgbuf[100];
1.203 christos 1767: int len;
1.2 lukem 1768:
1.148 lukem 1769: sigint_raised = 1;
1.2 lukem 1770: alarmtimer(0);
1.203 christos 1771: if (fromatty) {
1772: len = snprintf(msgbuf, sizeof(msgbuf),
1773: "\n%s: HTTP fetch aborted.\n", getprogname());
1774: if (len > 0)
1775: write(fileno(ttyout), msgbuf, len);
1776: }
1777: siglongjmp(httpabort, 1);
1778: }
1779:
1780: static void
1781: timeouthttp(int notused)
1782: {
1783: char msgbuf[100];
1784: int len;
1785:
1786: alarmtimer(0);
1787: if (fromatty) {
1788: len = snprintf(msgbuf, sizeof(msgbuf),
1789: "\n%s: HTTP fetch timeout.\n", getprogname());
1790: if (len > 0)
1791: write(fileno(ttyout), msgbuf, len);
1792: }
1.88 lukem 1793: siglongjmp(httpabort, 1);
1.2 lukem 1794: }
1795:
1796: /*
1.50 lukem 1797: * Retrieve ftp URL or classic ftp argument using FTP.
1.63 lukem 1798: * Returns 1 on failure, 0 on completed xfer, -1 if ftp connection
1.42 lukem 1799: * is still open (e.g, ftp xfer with trailing /)
1800: */
1801: static int
1.111 lukem 1802: fetch_ftp(const char *url)
1.42 lukem 1803: {
1804: char *cp, *xargv[5], rempath[MAXPATHLEN];
1.214 christos 1805: char *dir, *file;
1.187 lukem 1806: char cmdbuf[MAXPATHLEN];
1807: char dirbuf[4];
1.186 lukem 1808: int dirhasglob, filehasglob, rval, transtype, xargc;
1.160 lukem 1809: int oanonftp, oautologin;
1.214 christos 1810: struct authinfo auth;
1811: struct urlinfo ui;
1.42 lukem 1812:
1.183 lukem 1813: DPRINTF("fetch_ftp: `%s'\n", url);
1.214 christos 1814: dir = file = NULL;
1.42 lukem 1815: rval = 1;
1.186 lukem 1816: transtype = TYPE_I;
1.42 lukem 1817:
1.214 christos 1818: initurlinfo(&ui);
1819: initauthinfo(&auth, NULL);
1820:
1.150 lukem 1821: if (STRNEQUAL(url, FTP_URL)) {
1.214 christos 1822: if ((parse_url(url, "URL", &ui, &auth) == -1) ||
1823: (auth.user != NULL && *auth.user == '\0') ||
1824: EMPTYSTRING(ui.host)) {
1.42 lukem 1825: warnx("Invalid URL `%s'", url);
1826: goto cleanup_fetch_ftp;
1827: }
1.53 lukem 1828: /*
1829: * Note: Don't url_decode(path) here. We need to keep the
1830: * distinction between "/" and "%2F" until later.
1831: */
1832:
1833: /* check for trailing ';type=[aid]' */
1.214 christos 1834: if (! EMPTYSTRING(ui.path) && (cp = strrchr(ui.path, ';')) != NULL) {
1.53 lukem 1835: if (strcasecmp(cp, ";type=a") == 0)
1.186 lukem 1836: transtype = TYPE_A;
1.53 lukem 1837: else if (strcasecmp(cp, ";type=i") == 0)
1.186 lukem 1838: transtype = TYPE_I;
1.53 lukem 1839: else if (strcasecmp(cp, ";type=d") == 0) {
1840: warnx(
1841: "Directory listing via a URL is not supported");
1842: goto cleanup_fetch_ftp;
1843: } else {
1844: warnx("Invalid suffix `%s' in URL `%s'", cp,
1845: url);
1846: goto cleanup_fetch_ftp;
1847: }
1848: *cp = 0;
1849: }
1.97 lukem 1850: } else { /* classic style `[user@]host:[file]' */
1.214 christos 1851: ui.utype = CLASSIC_URL_T;
1852: ui.host = ftp_strdup(url);
1853: cp = strchr(ui.host, '@');
1.97 lukem 1854: if (cp != NULL) {
1855: *cp = '\0';
1.214 christos 1856: auth.user = ui.host;
1.97 lukem 1857: anonftp = 0; /* disable anonftp */
1.214 christos 1858: ui.host = ftp_strdup(cp + 1);
1.97 lukem 1859: }
1.214 christos 1860: cp = strchr(ui.host, ':');
1.42 lukem 1861: if (cp != NULL) {
1862: *cp = '\0';
1.214 christos 1863: ui.path = ftp_strdup(cp + 1);
1.42 lukem 1864: }
1865: }
1.214 christos 1866: if (EMPTYSTRING(ui.host))
1.42 lukem 1867: goto cleanup_fetch_ftp;
1868:
1.50 lukem 1869: /* Extract the file and (if present) directory name. */
1.214 christos 1870: dir = ui.path;
1.42 lukem 1871: if (! EMPTYSTRING(dir)) {
1.53 lukem 1872: /*
1.97 lukem 1873: * If we are dealing with classic `[user@]host:[path]' syntax,
1874: * then a path of the form `/file' (resulting from input of the
1875: * form `host:/file') means that we should do "CWD /" before
1876: * retrieving the file. So we set dir="/" and file="file".
1.53 lukem 1877: *
1.97 lukem 1878: * But if we are dealing with URLs like `ftp://host/path' then
1879: * a path of the form `/file' (resulting from a URL of the form
1880: * `ftp://host//file') means that we should do `CWD ' (with an
1881: * empty argument) before retrieving the file. So we set
1.53 lukem 1882: * dir="" and file="file".
1883: *
1.97 lukem 1884: * If the path does not contain / at all, we set dir=NULL.
1885: * (We get a path without any slashes if we are dealing with
1886: * classic `[user@]host:[file]' or URL `ftp://host/file'.)
1.53 lukem 1887: *
1.97 lukem 1888: * In all other cases, we set dir to a string that does not
1889: * include the final '/' that separates the dir part from the
1890: * file part of the path. (This will be the empty string if
1891: * and only if we are dealing with a path of the form `/file'
1892: * resulting from an URL of the form `ftp://host//file'.)
1.53 lukem 1893: */
1.42 lukem 1894: cp = strrchr(dir, '/');
1.214 christos 1895: if (cp == dir && ui.utype == CLASSIC_URL_T) {
1.50 lukem 1896: file = cp + 1;
1.187 lukem 1897: (void)strlcpy(dirbuf, "/", sizeof(dirbuf));
1898: dir = dirbuf;
1.50 lukem 1899: } else if (cp != NULL) {
1.42 lukem 1900: *cp++ = '\0';
1901: file = cp;
1902: } else {
1903: file = dir;
1904: dir = NULL;
1905: }
1.63 lukem 1906: } else
1907: dir = NULL;
1.214 christos 1908: if (ui.utype == FTP_URL_T && file != NULL) {
1.157 lukem 1909: url_decode(file);
1.53 lukem 1910: /* but still don't url_decode(dir) */
1911: }
1.163 christos 1912: DPRINTF("fetch_ftp: user `%s' pass `%s' host %s port %s "
1913: "path `%s' dir `%s' file `%s'\n",
1.214 christos 1914: STRorNULL(auth.user), STRorNULL(auth.pass),
1915: STRorNULL(ui.host), STRorNULL(ui.port),
1916: STRorNULL(ui.path), STRorNULL(dir), STRorNULL(file));
1.42 lukem 1917:
1918: dirhasglob = filehasglob = 0;
1.224 maya 1919: if (doglob &&
1920: (ui.utype == CLASSIC_URL_T || ui.utype == FTP_URL_T)) {
1.42 lukem 1921: if (! EMPTYSTRING(dir) && strpbrk(dir, "*?[]{}") != NULL)
1922: dirhasglob = 1;
1923: if (! EMPTYSTRING(file) && strpbrk(file, "*?[]{}") != NULL)
1924: filehasglob = 1;
1925: }
1926:
1.50 lukem 1927: /* Set up the connection */
1.160 lukem 1928: oanonftp = anonftp;
1.50 lukem 1929: if (connected)
1930: disconnect(0, NULL);
1.160 lukem 1931: anonftp = oanonftp;
1.187 lukem 1932: (void)strlcpy(cmdbuf, getprogname(), sizeof(cmdbuf));
1933: xargv[0] = cmdbuf;
1.214 christos 1934: xargv[1] = ui.host;
1.50 lukem 1935: xargv[2] = NULL;
1936: xargc = 2;
1.214 christos 1937: if (ui.port) {
1938: xargv[2] = ui.port;
1.50 lukem 1939: xargv[3] = NULL;
1940: xargc = 3;
1941: }
1942: oautologin = autologin;
1.116 lukem 1943: /* don't autologin in setpeer(), use ftp_login() below */
1944: autologin = 0;
1.50 lukem 1945: setpeer(xargc, xargv);
1946: autologin = oautologin;
1.116 lukem 1947: if ((connected == 0) ||
1.214 christos 1948: (connected == 1 && !ftp_login(ui.host, auth.user, auth.pass))) {
1.189 drochner 1949: warnx("Can't connect or login to host `%s:%s'",
1.214 christos 1950: ui.host, ui.port ? ui.port : "?");
1.50 lukem 1951: goto cleanup_fetch_ftp;
1952: }
1.42 lukem 1953:
1.186 lukem 1954: switch (transtype) {
1.53 lukem 1955: case TYPE_A:
1.118 lukem 1956: setascii(1, xargv);
1.53 lukem 1957: break;
1958: case TYPE_I:
1.118 lukem 1959: setbinary(1, xargv);
1.53 lukem 1960: break;
1961: default:
1.186 lukem 1962: errx(1, "fetch_ftp: unknown transfer type %d", transtype);
1.53 lukem 1963: }
1964:
1.63 lukem 1965: /*
1966: * Change directories, if necessary.
1967: *
1968: * Note: don't use EMPTYSTRING(dir) below, because
1969: * dir=="" means something different from dir==NULL.
1970: */
1.53 lukem 1971: if (dir != NULL && !dirhasglob) {
1972: char *nextpart;
1.42 lukem 1973:
1.53 lukem 1974: /*
1.97 lukem 1975: * If we are dealing with a classic `[user@]host:[path]'
1976: * (urltype is CLASSIC_URL_T) then we have a raw directory
1.53 lukem 1977: * name (not encoded in any way) and we can change
1978: * directories in one step.
1979: *
1980: * If we are dealing with an `ftp://host/path' URL
1.193 lukem 1981: * (urltype is FTP_URL_T), then RFC 3986 says we need to
1.53 lukem 1982: * send a separate CWD command for each unescaped "/"
1983: * in the path, and we have to interpret %hex escaping
1984: * *after* we find the slashes. It's possible to get
1985: * empty components here, (from multiple adjacent
1.193 lukem 1986: * slashes in the path) and RFC 3986 says that we should
1.53 lukem 1987: * still do `CWD ' (with a null argument) in such cases.
1988: *
1.63 lukem 1989: * Many ftp servers don't support `CWD ', so if there's an
1990: * error performing that command, bail out with a descriptive
1991: * message.
1.53 lukem 1992: *
1993: * Examples:
1994: *
1.63 lukem 1995: * host: dir="", urltype=CLASSIC_URL_T
1996: * logged in (to default directory)
1.53 lukem 1997: * host:file dir=NULL, urltype=CLASSIC_URL_T
1998: * "RETR file"
1.63 lukem 1999: * host:dir/ dir="dir", urltype=CLASSIC_URL_T
2000: * "CWD dir", logged in
2001: * ftp://host/ dir="", urltype=FTP_URL_T
2002: * logged in (to default directory)
2003: * ftp://host/dir/ dir="dir", urltype=FTP_URL_T
2004: * "CWD dir", logged in
1.53 lukem 2005: * ftp://host/file dir=NULL, urltype=FTP_URL_T
2006: * "RETR file"
2007: * ftp://host//file dir="", urltype=FTP_URL_T
1.63 lukem 2008: * "CWD ", "RETR file"
1.53 lukem 2009: * host:/file dir="/", urltype=CLASSIC_URL_T
2010: * "CWD /", "RETR file"
2011: * ftp://host///file dir="/", urltype=FTP_URL_T
1.63 lukem 2012: * "CWD ", "CWD ", "RETR file"
1.53 lukem 2013: * ftp://host/%2F/file dir="%2F", urltype=FTP_URL_T
2014: * "CWD /", "RETR file"
2015: * ftp://host/foo/file dir="foo", urltype=FTP_URL_T
2016: * "CWD foo", "RETR file"
2017: * ftp://host/foo/bar/file dir="foo/bar"
2018: * "CWD foo", "CWD bar", "RETR file"
2019: * ftp://host//foo/bar/file dir="/foo/bar"
1.63 lukem 2020: * "CWD ", "CWD foo", "CWD bar", "RETR file"
1.53 lukem 2021: * ftp://host/foo//bar/file dir="foo//bar"
1.63 lukem 2022: * "CWD foo", "CWD ", "CWD bar", "RETR file"
1.53 lukem 2023: * ftp://host/%2F/foo/bar/file dir="%2F/foo/bar"
2024: * "CWD /", "CWD foo", "CWD bar", "RETR file"
2025: * ftp://host/%2Ffoo/bar/file dir="%2Ffoo/bar"
2026: * "CWD /foo", "CWD bar", "RETR file"
2027: * ftp://host/%2Ffoo%2Fbar/file dir="%2Ffoo%2Fbar"
2028: * "CWD /foo/bar", "RETR file"
2029: * ftp://host/%2Ffoo%2Fbar%2Ffile dir=NULL
2030: * "RETR /foo/bar/file"
2031: *
2032: * Note that we don't need `dir' after this point.
2033: */
2034: do {
1.214 christos 2035: if (ui.utype == FTP_URL_T) {
1.53 lukem 2036: nextpart = strchr(dir, '/');
2037: if (nextpart) {
2038: *nextpart = '\0';
2039: nextpart++;
2040: }
2041: url_decode(dir);
2042: } else
2043: nextpart = NULL;
1.183 lukem 2044: DPRINTF("fetch_ftp: dir `%s', nextpart `%s'\n",
2045: STRorNULL(dir), STRorNULL(nextpart));
1.214 christos 2046: if (ui.utype == FTP_URL_T || *dir != '\0') {
1.187 lukem 2047: (void)strlcpy(cmdbuf, "cd", sizeof(cmdbuf));
2048: xargv[0] = cmdbuf;
1.53 lukem 2049: xargv[1] = dir;
2050: xargv[2] = NULL;
2051: dirchange = 0;
2052: cd(2, xargv);
1.63 lukem 2053: if (! dirchange) {
2054: if (*dir == '\0' && code == 500)
2055: fprintf(stderr,
2056: "\n"
2057: "ftp: The `CWD ' command (without a directory), which is required by\n"
1.193 lukem 2058: " RFC 3986 to support the empty directory in the URL pathname (`//'),\n"
2059: " conflicts with the server's conformance to RFC 959.\n"
1.63 lukem 2060: " Try the same URL without the `//' in the URL pathname.\n"
2061: "\n");
1.53 lukem 2062: goto cleanup_fetch_ftp;
1.63 lukem 2063: }
1.53 lukem 2064: }
2065: dir = nextpart;
2066: } while (dir != NULL);
1.42 lukem 2067: }
2068:
2069: if (EMPTYSTRING(file)) {
2070: rval = -1;
2071: goto cleanup_fetch_ftp;
2072: }
2073:
2074: if (dirhasglob) {
1.78 lukem 2075: (void)strlcpy(rempath, dir, sizeof(rempath));
2076: (void)strlcat(rempath, "/", sizeof(rempath));
2077: (void)strlcat(rempath, file, sizeof(rempath));
1.42 lukem 2078: file = rempath;
2079: }
2080:
2081: /* Fetch the file(s). */
2082: xargc = 2;
1.187 lukem 2083: (void)strlcpy(cmdbuf, "get", sizeof(cmdbuf));
2084: xargv[0] = cmdbuf;
1.42 lukem 2085: xargv[1] = file;
2086: xargv[2] = NULL;
2087: if (dirhasglob || filehasglob) {
2088: int ointeractive;
2089:
2090: ointeractive = interactive;
2091: interactive = 0;
1.155 lukem 2092: if (restartautofetch)
1.187 lukem 2093: (void)strlcpy(cmdbuf, "mreget", sizeof(cmdbuf));
1.155 lukem 2094: else
1.187 lukem 2095: (void)strlcpy(cmdbuf, "mget", sizeof(cmdbuf));
2096: xargv[0] = cmdbuf;
1.42 lukem 2097: mget(xargc, xargv);
2098: interactive = ointeractive;
2099: } else {
1.229 ! christos 2100: char *destfile = outfile;
! 2101: if (destfile == NULL) {
1.53 lukem 2102: cp = strrchr(file, '/'); /* find savefile */
2103: if (cp != NULL)
1.229 ! christos 2104: destfile = cp + 1;
1.53 lukem 2105: else
1.229 ! christos 2106: destfile = file;
1.42 lukem 2107: }
1.229 ! christos 2108: xargv[2] = (char *)destfile;
1.53 lukem 2109: xargv[3] = NULL;
2110: xargc++;
1.52 lukem 2111: if (restartautofetch)
2112: reget(xargc, xargv);
2113: else
2114: get(xargc, xargv);
1.42 lukem 2115: }
2116:
2117: if ((code / 100) == COMPLETE)
2118: rval = 0;
2119:
1.118 lukem 2120: cleanup_fetch_ftp:
1.214 christos 2121: freeurlinfo(&ui);
2122: freeauthinfo(&auth);
1.42 lukem 2123: return (rval);
2124: }
2125:
2126: /*
2127: * Retrieve the given file to outfile.
2128: * Supports arguments of the form:
2129: * "host:path", "ftp://host/path" if $ftpproxy, call fetch_url() else
2130: * call fetch_ftp()
1.50 lukem 2131: * "http://host/path" call fetch_url() to use HTTP
1.42 lukem 2132: * "file:///path" call fetch_url() to copy
2133: * "about:..." print a message
2134: *
2135: * Returns 1 on failure, 0 on completed xfer, -1 if ftp connection
2136: * is still open (e.g, ftp xfer with trailing /)
2137: */
2138: static int
1.111 lukem 2139: go_fetch(const char *url)
1.42 lukem 2140: {
1.186 lukem 2141: char *proxyenv;
1.196 apb 2142: char *p;
1.42 lukem 2143:
1.147 christos 2144: #ifndef NO_ABOUT
1.42 lukem 2145: /*
2146: * Check for about:*
2147: */
1.150 lukem 2148: if (STRNEQUAL(url, ABOUT_URL)) {
1.42 lukem 2149: url += sizeof(ABOUT_URL) -1;
1.144 lukem 2150: if (strcasecmp(url, "ftp") == 0 ||
2151: strcasecmp(url, "tnftp") == 0) {
1.87 lukem 2152: fputs(
1.143 salo 2153: "This version of ftp has been enhanced by Luke Mewburn <lukem@NetBSD.org>\n"
1.87 lukem 2154: "for the NetBSD project. Execute `man ftp' for more details.\n", ttyout);
2155: } else if (strcasecmp(url, "lukem") == 0) {
2156: fputs(
2157: "Luke Mewburn is the author of most of the enhancements in this ftp client.\n"
1.143 salo 2158: "Please email feedback to <lukem@NetBSD.org>.\n", ttyout);
1.42 lukem 2159: } else if (strcasecmp(url, "netbsd") == 0) {
1.87 lukem 2160: fputs(
2161: "NetBSD is a freely available and redistributable UNIX-like operating system.\n"
1.144 lukem 2162: "For more information, see http://www.NetBSD.org/\n", ttyout);
1.92 lukem 2163: } else if (strcasecmp(url, "version") == 0) {
1.115 lukem 2164: fprintf(ttyout, "Version: %s %s%s\n",
2165: FTP_PRODUCT, FTP_VERSION,
2166: #ifdef INET6
2167: ""
2168: #else
2169: " (-IPv6)"
2170: #endif
2171: );
1.42 lukem 2172: } else {
2173: fprintf(ttyout, "`%s' is an interesting topic.\n", url);
2174: }
1.92 lukem 2175: fputs("\n", ttyout);
1.42 lukem 2176: return (0);
2177: }
1.147 christos 2178: #endif
1.42 lukem 2179:
2180: /*
2181: * Check for file:// and http:// URLs.
2182: */
1.199 christos 2183: if (STRNEQUAL(url, HTTP_URL)
2184: #ifdef WITH_SSL
2185: || STRNEQUAL(url, HTTPS_URL)
2186: #endif
2187: || STRNEQUAL(url, FILE_URL))
1.52 lukem 2188: return (fetch_url(url, NULL, NULL, NULL));
1.42 lukem 2189:
2190: /*
1.196 apb 2191: * If it contains "://" but does not begin with ftp://
2192: * or something that was already handled, then it's
2193: * unsupported.
2194: *
2195: * If it contains ":" but not "://" then we assume the
2196: * part before the colon is a host name, not an URL scheme,
2197: * so we don't try to match that here.
2198: */
2199: if ((p = strstr(url, "://")) != NULL && ! STRNEQUAL(url, FTP_URL))
1.197 apb 2200: errx(1, "Unsupported URL scheme `%.*s'", (int)(p - url), url);
1.196 apb 2201:
2202: /*
1.42 lukem 2203: * Try FTP URL-style and host:file arguments next.
2204: * If ftpproxy is set with an FTP URL, use fetch_url()
2205: * Othewise, use fetch_ftp().
2206: */
1.186 lukem 2207: proxyenv = getoptionvalue("ftp_proxy");
2208: if (!EMPTYSTRING(proxyenv) && STRNEQUAL(url, FTP_URL))
1.52 lukem 2209: return (fetch_url(url, NULL, NULL, NULL));
1.42 lukem 2210:
1.52 lukem 2211: return (fetch_ftp(url));
1.42 lukem 2212: }
2213:
2214: /*
2215: * Retrieve multiple files from the command line,
2216: * calling go_fetch() for each file.
2217: *
2218: * If an ftp path has a trailing "/", the path will be cd-ed into and
1.41 lukem 2219: * the connection remains open, and the function will return -1
2220: * (to indicate the connection is alive).
1.1 lukem 2221: * If an error occurs the return value will be the offset+1 in
2222: * argv[] of the file that caused a problem (i.e, argv[x]
2223: * returns x+1)
2224: * Otherwise, 0 is returned if all files retrieved successfully.
2225: */
2226: int
1.111 lukem 2227: auto_fetch(int argc, char *argv[])
1.1 lukem 2228: {
1.160 lukem 2229: volatile int argpos, rval;
1.22 lukem 2230:
1.160 lukem 2231: argpos = rval = 0;
1.1 lukem 2232:
1.88 lukem 2233: if (sigsetjmp(toplevel, 1)) {
1.2 lukem 2234: if (connected)
2235: disconnect(0, NULL);
1.148 lukem 2236: if (rval > 0)
2237: rval = argpos + 1;
2238: return (rval);
1.2 lukem 2239: }
1.88 lukem 2240: (void)xsignal(SIGINT, intr);
1.91 lukem 2241: (void)xsignal(SIGPIPE, lostpeer);
1.1 lukem 2242:
2243: /*
2244: * Loop through as long as there's files to fetch.
2245: */
1.160 lukem 2246: for (; (rval == 0) && (argpos < argc); argpos++) {
1.1 lukem 2247: if (strchr(argv[argpos], ':') == NULL)
2248: break;
1.42 lukem 2249: redirect_loop = 0;
1.90 lukem 2250: if (!anonftp)
2251: anonftp = 2; /* Handle "automatic" transfers. */
1.52 lukem 2252: rval = go_fetch(argv[argpos]);
2253: if (outfile != NULL && strcmp(outfile, "-") != 0
1.229 ! christos 2254: && outfile[0] != '|') {
! 2255: FREEPTR(outfile);
! 2256: }
1.42 lukem 2257: if (rval > 0)
1.1 lukem 2258: rval = argpos + 1;
1.42 lukem 2259: }
1.3 lukem 2260:
1.1 lukem 2261: if (connected && rval != -1)
2262: disconnect(0, NULL);
1.114 lukem 2263: return (rval);
2264: }
2265:
2266:
1.170 lukem 2267: /*
2268: * Upload multiple files from the command line.
2269: *
2270: * If an error occurs the return value will be the offset+1 in
2271: * argv[] of the file that caused a problem (i.e, argv[x]
2272: * returns x+1)
2273: * Otherwise, 0 is returned if all files uploaded successfully.
2274: */
1.114 lukem 2275: int
2276: auto_put(int argc, char **argv, const char *uploadserver)
2277: {
2278: char *uargv[4], *path, *pathsep;
1.170 lukem 2279: int uargc, rval, argpos;
1.159 lukem 2280: size_t len;
1.187 lukem 2281: char cmdbuf[MAX_C_NAME];
1.114 lukem 2282:
1.187 lukem 2283: (void)strlcpy(cmdbuf, "mput", sizeof(cmdbuf));
2284: uargv[0] = cmdbuf;
2285: uargv[1] = argv[0];
2286: uargc = 2;
1.114 lukem 2287: uargv[2] = uargv[3] = NULL;
2288: pathsep = NULL;
2289: rval = 1;
2290:
1.163 christos 2291: DPRINTF("auto_put: target `%s'\n", uploadserver);
1.114 lukem 2292:
1.166 christos 2293: path = ftp_strdup(uploadserver);
1.114 lukem 2294: len = strlen(path);
2295: if (path[len - 1] != '/' && path[len - 1] != ':') {
2296: /*
2297: * make sure we always pass a directory to auto_fetch
2298: */
2299: if (argc > 1) { /* more than one file to upload */
2300: len = strlen(uploadserver) + 2; /* path + "/" + "\0" */
2301: free(path);
1.166 christos 2302: path = (char *)ftp_malloc(len);
1.114 lukem 2303: (void)strlcpy(path, uploadserver, len);
2304: (void)strlcat(path, "/", len);
2305: } else { /* single file to upload */
1.187 lukem 2306: (void)strlcpy(cmdbuf, "put", sizeof(cmdbuf));
2307: uargv[0] = cmdbuf;
1.114 lukem 2308: pathsep = strrchr(path, '/');
2309: if (pathsep == NULL) {
2310: pathsep = strrchr(path, ':');
2311: if (pathsep == NULL) {
2312: warnx("Invalid URL `%s'", path);
2313: goto cleanup_auto_put;
2314: }
2315: pathsep++;
1.166 christos 2316: uargv[2] = ftp_strdup(pathsep);
1.114 lukem 2317: pathsep[0] = '/';
1.157 lukem 2318: } else
1.166 christos 2319: uargv[2] = ftp_strdup(pathsep + 1);
1.114 lukem 2320: pathsep[1] = '\0';
2321: uargc++;
2322: }
2323: }
1.163 christos 2324: DPRINTF("auto_put: URL `%s' argv[2] `%s'\n",
1.183 lukem 2325: path, STRorNULL(uargv[2]));
1.157 lukem 2326:
2327: /* connect and cwd */
1.114 lukem 2328: rval = auto_fetch(1, &path);
2329: if(rval >= 0)
2330: goto cleanup_auto_put;
2331:
1.170 lukem 2332: rval = 0;
2333:
2334: /* target filename provided; upload 1 file */
1.114 lukem 2335: /* XXX : is this the best way? */
2336: if (uargc == 3) {
2337: uargv[1] = argv[0];
2338: put(uargc, uargv);
1.170 lukem 2339: if ((code / 100) != COMPLETE)
2340: rval = 1;
2341: } else { /* otherwise a target dir: upload all files to it */
2342: for(argpos = 0; argv[argpos] != NULL; argpos++) {
2343: uargv[1] = argv[argpos];
2344: mput(uargc, uargv);
2345: if ((code / 100) != COMPLETE) {
2346: rval = argpos + 1;
2347: break;
2348: }
2349: }
1.114 lukem 2350: }
2351:
1.118 lukem 2352: cleanup_auto_put:
1.168 christos 2353: free(path);
1.114 lukem 2354: FREEPTR(uargv[2]);
1.1 lukem 2355: return (rval);
2356: }
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