contrib/tnftp/src/fetch.c

   1 /*      $NetBSD: fetch.c,v 1.18 2009/11/15 10:12:37 lukem Exp $ */
   2 /*      from    NetBSD: fetch.c,v 1.191 2009/08/17 09:08:16 christos Exp        */
   3
   4 /*-
   5  * Copyright (c) 1997-2009 The NetBSD Foundation, Inc.
   6  * All rights reserved.
   7  *
   8  * This code is derived from software contributed to The NetBSD Foundation
   9  * by Luke Mewburn.
  10  *
  11  * This code is derived from software contributed to The NetBSD Foundation
  12  * by Scott Aaron Bamford.
  13  *
  14  * Redistribution and use in source and binary forms, with or without
  15  * modification, are permitted provided that the following conditions
  16  * are met:
  17  * 1. Redistributions of source code must retain the above copyright
  18  *    notice, this list of conditions and the following disclaimer.
  19  * 2. Redistributions in binary form must reproduce the above copyright
  20  *    notice, this list of conditions and the following disclaimer in the
  21  *    documentation and/or other materials provided with the distribution.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  24  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  25  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  26  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  27  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  28  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  29  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  30  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  31  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  32  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  33  * POSSIBILITY OF SUCH DAMAGE.
  34  */
  35
  36 #include "tnftp.h"
  37
  38 #if 0   /* tnftp */
  39
  40 #include <sys/cdefs.h>
  41 #ifndef lint
  42 __RCSID(" NetBSD: fetch.c,v 1.191 2009/08/17 09:08:16 christos Exp  ");
  43 #endif /* not lint */
  44
  45 /*
  46  * FTP User Program -- Command line file retrieval
  47  */
  48
  49 #include <sys/types.h>
  50 #include <sys/param.h>
  51 #include <sys/socket.h>
  52 #include <sys/stat.h>
  53 #include <sys/time.h>
  54
  55 #include <netinet/in.h>
  56
  57 #include <arpa/ftp.h>
  58 #include <arpa/inet.h>
  59
  60 #include <ctype.h>
  61 #include <err.h>
  62 #include <errno.h>
  63 #include <netdb.h>
  64 #include <fcntl.h>
  65 #include <stdio.h>
  66 #include <stdlib.h>
  67 #include <string.h>
  68 #include <unistd.h>
  69 #include <time.h>
  70
  71 #endif  /* tnftp */
  72
  73 #include "ftp_var.h"
  74 #include "version.h"
  75
  76 typedef enum {
  77         UNKNOWN_URL_T=-1,
  78         HTTP_URL_T,
  79         FTP_URL_T,
  80         FILE_URL_T,
  81         CLASSIC_URL_T
  82 } url_t;
  83
  84 void            aborthttp(int);
  85 #ifndef NO_AUTH
  86 static int      auth_url(const char *, char **, const char *, const char *);
  87 static void     base64_encode(const unsigned char *, size_t, unsigned char *);
  88 #endif
  89 static int      go_fetch(const char *);
  90 static int      fetch_ftp(const char *);
  91 static int      fetch_url(const char *, const char *, char *, char *);
  92 static const char *match_token(const char **, const char *);
  93 static int      parse_url(const char *, const char *, url_t *, char **,
  94                             char **, char **, char **, in_port_t *, char **);
  95 static void     url_decode(char *);
  96
  97 static int      redirect_loop;
  98
  99
 100 #define STRNEQUAL(a,b)  (strncasecmp((a), (b), sizeof((b))-1) == 0)
 101 #define ISLWS(x)        ((x)=='\r' || (x)=='\n' || (x)==' ' || (x)=='\t')
 102 #define SKIPLWS(x)      do { while (ISLWS((*x))) x++; } while (0)
 103
 104
 105 #define ABOUT_URL       "about:"        /* propaganda */
 106 #define FILE_URL        "file://"       /* file URL prefix */
 107 #define FTP_URL         "ftp://"        /* ftp URL prefix */
 108 #define HTTP_URL        "http://"       /* http URL prefix */
 109
 110
 111 /*
 112  * Determine if token is the next word in buf (case insensitive).
 113  * If so, advance buf past the token and any trailing LWS, and
 114  * return a pointer to the token (in buf).  Otherwise, return NULL.
 115  * token may be preceded by LWS.
 116  * token must be followed by LWS or NUL.  (I.e, don't partial match).
 117  */
 118 static const char *
 119 match_token(const char **buf, const char *token)
 120 {
 121         const char      *p, *orig;
 122         size_t          tlen;
 123
 124         tlen = strlen(token);
 125         p = *buf;
 126         SKIPLWS(p);
 127         orig = p;
 128         if (strncasecmp(p, token, tlen) != 0)
 129                 return NULL;
 130         p += tlen;
 131         if (*p != '\0' && !ISLWS(*p))
 132                 return NULL;
 133         SKIPLWS(p);
 134         orig = *buf;
 135         *buf = p;
 136         return orig;
 137 }
 138
 139 #ifndef NO_AUTH
 140 /*
 141  * Generate authorization response based on given authentication challenge.
 142  * Returns -1 if an error occurred, otherwise 0.
 143  * Sets response to a malloc(3)ed string; caller should free.
 144  */
 145 static int
 146 auth_url(const char *challenge, char **response, const char *guser,
 147         const char *gpass)
 148 {
 149         const char      *cp, *scheme, *errormsg;
 150         char            *ep, *clear, *realm;
 151         char             uuser[BUFSIZ], *gotpass;
 152         const char      *upass;
 153         int              rval;
 154         size_t           len, clen, rlen;
 155
 156         *response = NULL;
 157         clear = realm = NULL;
 158         rval = -1;
 159         cp = challenge;
 160         scheme = "Basic";       /* only support Basic authentication */
 161         gotpass = NULL;
 162
 163         DPRINTF("auth_url: challenge `%s'\n", challenge);
 164
 165         if (! match_token(&cp, scheme)) {
 166                 warnx("Unsupported authentication challenge `%s'",
 167                     challenge);
 168                 goto cleanup_auth_url;
 169         }
 170
 171 #define REALM "realm=\""
 172         if (STRNEQUAL(cp, REALM))
 173                 cp += sizeof(REALM) - 1;
 174         else {
 175                 warnx("Unsupported authentication challenge `%s'",
 176                     challenge);
 177                 goto cleanup_auth_url;
 178         }
 179 /* XXX: need to improve quoted-string parsing to support \ quoting, etc. */
 180         if ((ep = strchr(cp, '\"')) != NULL) {
 181                 len = ep - cp;
 182                 realm = (char *)ftp_malloc(len + 1);
 183                 (void)strlcpy(realm, cp, len + 1);
 184         } else {
 185                 warnx("Unsupported authentication challenge `%s'",
 186                     challenge);
 187                 goto cleanup_auth_url;
 188         }
 189
 190         fprintf(ttyout, "Username for `%s': ", realm);
 191         if (guser != NULL) {
 192                 (void)strlcpy(uuser, guser, sizeof(uuser));
 193                 fprintf(ttyout, "%s\n", uuser);
 194         } else {
 195                 (void)fflush(ttyout);
 196                 if (get_line(stdin, uuser, sizeof(uuser), &errormsg) < 0) {
 197                         warnx("%s; can't authenticate", errormsg);
 198                         goto cleanup_auth_url;
 199                 }
 200         }
 201         if (gpass != NULL)
 202                 upass = gpass;
 203         else {
 204                 gotpass = getpass("Password: ");
 205                 if (gotpass == NULL) {
 206                         warnx("Can't read password");
 207                         goto cleanup_auth_url;
 208                 }
 209                 upass = gotpass;
 210         }
 211
 212         clen = strlen(uuser) + strlen(upass) + 2;       /* user + ":" + pass + "\0" */
 213         clear = (char *)ftp_malloc(clen);
 214         (void)strlcpy(clear, uuser, clen);
 215         (void)strlcat(clear, ":", clen);
 216         (void)strlcat(clear, upass, clen);
 217         if (gotpass)
 218                 memset(gotpass, 0, strlen(gotpass));
 219
 220                                                 /* scheme + " " + enc + "\0" */
 221         rlen = strlen(scheme) + 1 + (clen + 2) * 4 / 3 + 1;
 222         *response = (char *)ftp_malloc(rlen);
 223         (void)strlcpy(*response, scheme, rlen);
 224         len = strlcat(*response, " ", rlen);
 225                         /* use  `clen - 1'  to not encode the trailing NUL */
 226         base64_encode((unsigned char *)clear, clen - 1,
 227             (unsigned char *)*response + len);
 228         memset(clear, 0, clen);
 229         rval = 0;
 230
 231  cleanup_auth_url:
 232         FREEPTR(clear);
 233         FREEPTR(realm);
 234         return (rval);
 235 }
 236
 237 /*
 238  * Encode len bytes starting at clear using base64 encoding into encoded,
 239  * which should be at least ((len + 2) * 4 / 3 + 1) in size.
 240  */
 241 static void
 242 base64_encode(const unsigned char *clear, size_t len, unsigned char *encoded)
 243 {
 244         static const unsigned char enc[] =
 245             "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
 246         unsigned char   *cp;
 247         size_t   i;
 248
 249         cp = encoded;
 250         for (i = 0; i < len; i += 3) {
 251                 *(cp++) = enc[((clear[i + 0] >> 2))];
 252                 *(cp++) = enc[((clear[i + 0] << 4) & 0x30)
 253                             | ((clear[i + 1] >> 4) & 0x0f)];
 254                 *(cp++) = enc[((clear[i + 1] << 2) & 0x3c)
 255                             | ((clear[i + 2] >> 6) & 0x03)];
 256                 *(cp++) = enc[((clear[i + 2]     ) & 0x3f)];
 257         }
 258         *cp = '\0';
 259         while (i-- > len)
 260                 *(--cp) = '=';
 261 }
 262 #endif
 263
 264 /*
 265  * Decode %xx escapes in given string, `in-place'.
 266  */
 267 static void
 268 url_decode(char *url)
 269 {
 270         unsigned char *p, *q;
 271
 272         if (EMPTYSTRING(url))
 273                 return;
 274         p = q = (unsigned char *)url;
 275
 276 #define HEXTOINT(x) (x - (isdigit(x) ? '0' : (islower(x) ? 'a' : 'A') - 10))
 277         while (*p) {
 278                 if (p[0] == '%'
 279                     && p[1] && isxdigit((unsigned char)p[1])
 280                     && p[2] && isxdigit((unsigned char)p[2])) {
 281                         *q++ = HEXTOINT(p[1]) * 16 + HEXTOINT(p[2]);
 282                         p+=3;
 283                 } else
 284                         *q++ = *p++;
 285         }
 286         *q = '\0';
 287 }
 288
 289
 290 /*
 291  * Parse URL of form (per RFC3986):
 292  *      <type>://[<user>[:<password>]@]<host>[:<port>][/<path>]
 293  * Returns -1 if a parse error occurred, otherwise 0.
 294  * It's the caller's responsibility to url_decode() the returned
 295  * user, pass and path.
 296  *
 297  * Sets type to url_t, each of the given char ** pointers to a
 298  * malloc(3)ed strings of the relevant section, and port to
 299  * the number given, or ftpport if ftp://, or httpport if http://.
 300  *
 301  * XXX: this is not totally RFC3986 compliant; <path> will have the
 302  * leading `/' unless it's an ftp:// URL, as this makes things easier
 303  * for file:// and http:// URLs.  ftp:// URLs have the `/' between the
 304  * host and the URL-path removed, but any additional leading slashes
 305  * in the URL-path are retained (because they imply that we should
 306  * later do "CWD" with a null argument).
 307  *
 308  * Examples:
 309  *       input URL                       output path
 310  *       ---------                       -----------
 311  *      "http://host"                   "/"
 312  *      "http://host/"                  "/"
 313  *      "http://host/path"              "/path"
 314  *      "file://host/dir/file"          "dir/file"
 315  *      "ftp://host"                    ""
 316  *      "ftp://host/"                   ""
 317  *      "ftp://host//"                  "/"
 318  *      "ftp://host/dir/file"           "dir/file"
 319  *      "ftp://host//dir/file"          "/dir/file"
 320  */
 321 static int
 322 parse_url(const char *url, const char *desc, url_t *utype,
 323                 char **uuser, char **pass, char **host, char **port,
 324                 in_port_t *portnum, char **path)
 325 {
 326         const char      *origurl, *tport;
 327         char            *cp, *ep, *thost;
 328         size_t           len;
 329
 330         if (url == NULL || desc == NULL || utype == NULL || uuser == NULL
 331             || pass == NULL || host == NULL || port == NULL || portnum == NULL
 332             || path == NULL)
 333                 errx(1, "parse_url: invoked with NULL argument!");
 334         DPRINTF("parse_url: %s `%s'\n", desc, url);
 335
 336         origurl = url;
 337         *utype = UNKNOWN_URL_T;
 338         *uuser = *pass = *host = *port = *path = NULL;
 339         *portnum = 0;
 340         tport = NULL;
 341
 342         if (STRNEQUAL(url, HTTP_URL)) {
 343                 url += sizeof(HTTP_URL) - 1;
 344                 *utype = HTTP_URL_T;
 345                 *portnum = HTTP_PORT;
 346                 tport = httpport;
 347         } else if (STRNEQUAL(url, FTP_URL)) {
 348                 url += sizeof(FTP_URL) - 1;
 349                 *utype = FTP_URL_T;
 350                 *portnum = FTP_PORT;
 351                 tport = ftpport;
 352         } else if (STRNEQUAL(url, FILE_URL)) {
 353                 url += sizeof(FILE_URL) - 1;
 354                 *utype = FILE_URL_T;
 355         } else {
 356                 warnx("Invalid %s `%s'", desc, url);
 357  cleanup_parse_url:
 358                 FREEPTR(*uuser);
 359                 if (*pass != NULL)
 360                         memset(*pass, 0, strlen(*pass));
 361                 FREEPTR(*pass);
 362                 FREEPTR(*host);
 363                 FREEPTR(*port);
 364                 FREEPTR(*path);
 365                 return (-1);
 366         }
 367
 368         if (*url == '\0')
 369                 return (0);
 370
 371                         /* find [user[:pass]@]host[:port] */
 372         ep = strchr(url, '/');
 373         if (ep == NULL)
 374                 thost = ftp_strdup(url);
 375         else {
 376                 len = ep - url;
 377                 thost = (char *)ftp_malloc(len + 1);
 378                 (void)strlcpy(thost, url, len + 1);
 379                 if (*utype == FTP_URL_T)        /* skip first / for ftp URLs */
 380                         ep++;
 381                 *path = ftp_strdup(ep);
 382         }
 383
 384         cp = strchr(thost, '@');        /* look for user[:pass]@ in URLs */
 385         if (cp != NULL) {
 386                 if (*utype == FTP_URL_T)
 387                         anonftp = 0;    /* disable anonftp */
 388                 *uuser = thost;
 389                 *cp = '\0';
 390                 thost = ftp_strdup(cp + 1);
 391                 cp = strchr(*uuser, ':');
 392                 if (cp != NULL) {
 393                         *cp = '\0';
 394                         *pass = ftp_strdup(cp + 1);
 395                 }
 396                 url_decode(*uuser);
 397                 if (*pass)
 398                         url_decode(*pass);
 399         }
 400
 401 #ifdef INET6
 402                         /*
 403                          * Check if thost is an encoded IPv6 address, as per
 404                          * RFC3986:
 405                          *      `[' ipv6-address ']'
 406                          */
 407         if (*thost == '[') {
 408                 cp = thost + 1;
 409                 if ((ep = strchr(cp, ']')) == NULL ||
 410                     (ep[1] != '\0' && ep[1] != ':')) {
 411                         warnx("Invalid address `%s' in %s `%s'",
 412                             thost, desc, origurl);
 413                         goto cleanup_parse_url;
 414                 }
 415                 len = ep - cp;          /* change `[xyz]' -> `xyz' */
 416                 memmove(thost, thost + 1, len);
 417                 thost[len] = '\0';
 418                 if (! isipv6addr(thost)) {
 419                         warnx("Invalid IPv6 address `%s' in %s `%s'",
 420                             thost, desc, origurl);
 421                         goto cleanup_parse_url;
 422                 }
 423                 cp = ep + 1;
 424                 if (*cp == ':')
 425                         cp++;
 426                 else
 427                         cp = NULL;
 428         } else
 429 #endif /* INET6 */
 430                 if ((cp = strchr(thost, ':')) != NULL)
 431                         *cp++ = '\0';
 432         *host = thost;
 433
 434                         /* look for [:port] */
 435         if (cp != NULL) {
 436                 unsigned long   nport;
 437
 438                 nport = strtoul(cp, &ep, 10);
 439                 if (*cp == '\0' || *ep != '\0' ||
 440                     nport < 1 || nport > MAX_IN_PORT_T) {
 441                         warnx("Unknown port `%s' in %s `%s'",
 442                             cp, desc, origurl);
 443                         goto cleanup_parse_url;
 444                 }
 445                 *portnum = nport;
 446                 tport = cp;
 447         }
 448
 449         if (tport != NULL)
 450                 *port = ftp_strdup(tport);
 451         if (*path == NULL) {
 452                 const char *emptypath = "/";
 453                 if (*utype == FTP_URL_T)        /* skip first / for ftp URLs */
 454                         emptypath++;
 455                 *path = ftp_strdup(emptypath);
 456         }
 457
 458         DPRINTF("parse_url: user `%s' pass `%s' host %s port %s(%d) "
 459             "path `%s'\n",
 460             STRorNULL(*uuser), STRorNULL(*pass),
 461             STRorNULL(*host), STRorNULL(*port),
 462             *portnum ? *portnum : -1, STRorNULL(*path));
 463
 464         return (0);
 465 }
 466
 467 sigjmp_buf      httpabort;
 468
 469 /*
 470  * Retrieve URL, via a proxy if necessary, using HTTP.
 471  * If proxyenv is set, use that for the proxy, otherwise try ftp_proxy or
 472  * http_proxy as appropriate.
 473  * Supports HTTP redirects.
 474  * Returns 1 on failure, 0 on completed xfer, -1 if ftp connection
 475  * is still open (e.g, ftp xfer with trailing /)
 476  */
 477 static int
 478 fetch_url(const char *url, const char *proxyenv, char *proxyauth, char *wwwauth)
 479 {
 480         struct addrinfo         hints, *res, *res0 = NULL;
 481         int                     error;
 482         sigfunc volatile        oldintr;
 483         sigfunc volatile        oldintp;
 484         int volatile            s;
 485         struct stat             sb;
 486         int volatile            ischunked;
 487         int volatile            isproxy;
 488         int volatile            rval;
 489         int volatile            hcode;
 490         int                     len;
 491         size_t                  flen;
 492         static size_t           bufsize;
 493         static char             *xferbuf;
 494         const char              *cp, *token;
 495         char                    *ep;
 496         char                    buf[FTPBUFLEN];
 497         const char              *errormsg;
 498         char                    *volatile savefile;
 499         char                    *volatile auth;
 500         char                    *volatile location;
 501         char                    *volatile message;
 502         char                    *uuser, *pass, *host, *port, *path;
 503         char                    *volatile decodedpath;
 504         char                    *puser, *ppass, *useragent;
 505         off_t                   hashbytes, rangestart, rangeend, entitylen;
 506         int                     (*volatile closefunc)(FILE *);
 507         FILE                    *volatile fin;
 508         FILE                    *volatile fout;
 509         time_t                  mtime;
 510         url_t                   urltype;
 511         in_port_t               portnum;
 512
 513         DPRINTF("fetch_url: `%s' proxyenv `%s'\n", url, STRorNULL(proxyenv));
 514
 515         oldintr = oldintp = NULL;
 516         closefunc = NULL;
 517         fin = fout = NULL;
 518         s = -1;
 519         savefile = NULL;
 520         auth = location = message = NULL;
 521         ischunked = isproxy = hcode = 0;
 522         rval = 1;
 523         uuser = pass = host = path = decodedpath = puser = ppass = NULL;
 524
 525         if (parse_url(url, "URL", &urltype, &uuser, &pass, &host, &port,
 526             &portnum, &path) == -1)
 527                 goto cleanup_fetch_url;
 528
 529         if (urltype == FILE_URL_T && ! EMPTYSTRING(host)
 530             && strcasecmp(host, "localhost") != 0) {
 531                 warnx("No support for non local file URL `%s'", url);
 532                 goto cleanup_fetch_url;
 533         }
 534
 535         if (EMPTYSTRING(path)) {
 536                 if (urltype == FTP_URL_T) {
 537                         rval = fetch_ftp(url);
 538                         goto cleanup_fetch_url;
 539                 }
 540                 if (urltype != HTTP_URL_T || outfile == NULL)  {
 541                         warnx("Invalid URL (no file after host) `%s'", url);
 542                         goto cleanup_fetch_url;
 543                 }
 544         }
 545
 546         decodedpath = ftp_strdup(path);
 547         url_decode(decodedpath);
 548
 549         if (outfile)
 550                 savefile = ftp_strdup(outfile);
 551         else {
 552                 cp = strrchr(decodedpath, '/');         /* find savefile */
 553                 if (cp != NULL)
 554                         savefile = ftp_strdup(cp + 1);
 555                 else
 556                         savefile = ftp_strdup(decodedpath);
 557         }
 558         DPRINTF("fetch_url: savefile `%s'\n", savefile);
 559         if (EMPTYSTRING(savefile)) {
 560                 if (urltype == FTP_URL_T) {
 561                         rval = fetch_ftp(url);
 562                         goto cleanup_fetch_url;
 563                 }
 564                 warnx("No file after directory (you must specify an "
 565                     "output file) `%s'", url);
 566                 goto cleanup_fetch_url;
 567         }
 568
 569         restart_point = 0;
 570         filesize = -1;
 571         rangestart = rangeend = entitylen = -1;
 572         mtime = -1;
 573         if (restartautofetch) {
 574                 if (strcmp(savefile, "-") != 0 && *savefile != '|' &&
 575                     stat(savefile, &sb) == 0)
 576                         restart_point = sb.st_size;
 577         }
 578         if (urltype == FILE_URL_T) {            /* file:// URLs */
 579                 direction = "copied";
 580                 fin = fopen(decodedpath, "r");
 581                 if (fin == NULL) {
 582                         warn("Can't open `%s'", decodedpath);
 583                         goto cleanup_fetch_url;
 584                 }
 585                 if (fstat(fileno(fin), &sb) == 0) {
 586                         mtime = sb.st_mtime;
 587                         filesize = sb.st_size;
 588                 }
 589                 if (restart_point) {
 590                         if (lseek(fileno(fin), restart_point, SEEK_SET) < 0) {
 591                                 warn("Can't seek to restart `%s'",
 592                                     decodedpath);
 593                                 goto cleanup_fetch_url;
 594                         }
 595                 }
 596                 if (verbose) {
 597                         fprintf(ttyout, "Copying %s", decodedpath);
 598                         if (restart_point)
 599                                 fprintf(ttyout, " (restarting at " LLF ")",
 600                                     (LLT)restart_point);
 601                         fputs("\n", ttyout);
 602                 }
 603         } else {                                /* ftp:// or http:// URLs */
 604                 const char *leading;
 605                 int hasleading;
 606
 607                 if (proxyenv == NULL) {
 608                         if (urltype == HTTP_URL_T)
 609                                 proxyenv = getoptionvalue("http_proxy");
 610                         else if (urltype == FTP_URL_T)
 611                                 proxyenv = getoptionvalue("ftp_proxy");
 612                 }
 613                 direction = "retrieved";
 614                 if (! EMPTYSTRING(proxyenv)) {                  /* use proxy */
 615                         url_t purltype;
 616                         char *phost, *ppath;
 617                         char *pport, *no_proxy;
 618                         in_port_t pportnum;
 619
 620                         isproxy = 1;
 621
 622                                 /* check URL against list of no_proxied sites */
 623                         no_proxy = getoptionvalue("no_proxy");
 624                         if (! EMPTYSTRING(no_proxy)) {
 625                                 char *np, *np_copy, *np_iter;
 626                                 unsigned long np_port;
 627                                 size_t hlen, plen;
 628
 629                                 np_iter = np_copy = ftp_strdup(no_proxy);
 630                                 hlen = strlen(host);
 631                                 while ((cp = strsep(&np_iter, " ,")) != NULL) {
 632                                         if (*cp == '\0')
 633                                                 continue;
 634                                         if ((np = strrchr(cp, ':')) != NULL) {
 635                                                 *np++ =  '\0';
 636                                                 np_port = strtoul(np, &ep, 10);
 637                                                 if (*np == '\0' || *ep != '\0')
 638                                                         continue;
 639                                                 if (np_port != portnum)
 640                                                         continue;
 641                                         }
 642                                         plen = strlen(cp);
 643                                         if (hlen < plen)
 644                                                 continue;
 645                                         if (strncasecmp(host + hlen - plen,
 646                                             cp, plen) == 0) {
 647                                                 isproxy = 0;
 648                                                 break;
 649                                         }
 650                                 }
 651                                 FREEPTR(np_copy);
 652                                 if (isproxy == 0 && urltype == FTP_URL_T) {
 653                                         rval = fetch_ftp(url);
 654                                         goto cleanup_fetch_url;
 655                                 }
 656                         }
 657
 658                         if (isproxy) {
 659                                 if (restart_point) {
 660                                         warnx("Can't restart via proxy URL `%s'",
 661                                             proxyenv);
 662                                         goto cleanup_fetch_url;
 663                                 }
 664                                 if (parse_url(proxyenv, "proxy URL", &purltype,
 665                                     &puser, &ppass, &phost, &pport, &pportnum,
 666                                     &ppath) == -1)
 667                                         goto cleanup_fetch_url;
 668
 669                                 if ((purltype != HTTP_URL_T
 670                                      && purltype != FTP_URL_T) ||
 671                                     EMPTYSTRING(phost) ||
 672                                     (! EMPTYSTRING(ppath)
 673                                      && strcmp(ppath, "/") != 0)) {
 674                                         warnx("Malformed proxy URL `%s'",
 675                                             proxyenv);
 676                                         FREEPTR(phost);
 677                                         FREEPTR(pport);
 678                                         FREEPTR(ppath);
 679                                         goto cleanup_fetch_url;
 680                                 }
 681                                 if (isipv6addr(host) &&
 682                                     strchr(host, '%') != NULL) {
 683                                         warnx(
 684 "Scoped address notation `%s' disallowed via web proxy",
 685                                             host);
 686                                         FREEPTR(phost);
 687                                         FREEPTR(pport);
 688                                         FREEPTR(ppath);
 689                                         goto cleanup_fetch_url;
 690                                 }
 691
 692                                 FREEPTR(host);
 693                                 host = phost;
 694                                 FREEPTR(port);
 695                                 port = pport;
 696                                 FREEPTR(path);
 697                                 path = ftp_strdup(url);
 698                                 FREEPTR(ppath);
 699                         }
 700                 } /* ! EMPTYSTRING(proxyenv) */
 701
 702                 memset(&hints, 0, sizeof(hints));
 703                 hints.ai_flags = 0;
 704                 hints.ai_family = family;
 705                 hints.ai_socktype = SOCK_STREAM;
 706                 hints.ai_protocol = 0;
 707                 error = getaddrinfo(host, port, &hints, &res0);
 708                 if (error) {
 709                         warnx("Can't lookup `%s:%s': %s", host, port,
 710                             (error == EAI_SYSTEM) ? strerror(errno)
 711                                                   : gai_strerror(error));
 712                         goto cleanup_fetch_url;
 713                 }
 714                 if (res0->ai_canonname)
 715                         host = res0->ai_canonname;
 716
 717                 s = -1;
 718                 for (res = res0; res; res = res->ai_next) {
 719                         char    hname[NI_MAXHOST], sname[NI_MAXSERV];
 720
 721                         ai_unmapped(res);
 722                         if (getnameinfo(res->ai_addr, res->ai_addrlen,
 723                             hname, sizeof(hname), sname, sizeof(sname),
 724                             NI_NUMERICHOST | NI_NUMERICSERV) != 0) {
 725                                 strlcpy(hname, "?", sizeof(hname));
 726                                 strlcpy(sname, "?", sizeof(sname));
 727                         }
 728
 729                         if (verbose && res0->ai_next) {
 730                                 fprintf(ttyout, "Trying %s:%s ...\n",
 731                                     hname, sname);
 732                         }
 733
 734                         s = socket(res->ai_family, SOCK_STREAM,
 735                             res->ai_protocol);
 736                         if (s < 0) {
 737                                 warn(
 738                                     "Can't create socket for connection to "
 739                                     "`%s:%s'", hname, sname);
 740                                 continue;
 741                         }
 742
 743                         if (ftp_connect(s, res->ai_addr, res->ai_addrlen) < 0) {
 744                                 close(s);
 745                                 s = -1;
 746                                 continue;
 747                         }
 748
 749                         /* success */
 750                         break;
 751                 }
 752
 753                 if (s < 0) {
 754                         warnx("Can't connect to `%s:%s'", host, port);
 755                         goto cleanup_fetch_url;
 756                 }
 757
 758                 fin = fdopen(s, "r+");
 759                 /*
 760                  * Construct and send the request.
 761                  */
 762                 if (verbose)
 763                         fprintf(ttyout, "Requesting %s\n", url);
 764                 leading = "  (";
 765                 hasleading = 0;
 766                 if (isproxy) {
 767                         if (verbose) {
 768                                 fprintf(ttyout, "%svia %s:%s", leading,
 769                                     host, port);
 770                                 leading = ", ";
 771                                 hasleading++;
 772                         }
 773                         fprintf(fin, "GET %s HTTP/1.0\r\n", path);
 774                         if (flushcache)
 775                                 fprintf(fin, "Pragma: no-cache\r\n");
 776                 } else {
 777                         fprintf(fin, "GET %s HTTP/1.1\r\n", path);
 778                         if (strchr(host, ':')) {
 779                                 char *h, *p;
 780
 781                                 /*
 782                                  * strip off IPv6 scope identifier, since it is
 783                                  * local to the node
 784                                  */
 785                                 h = ftp_strdup(host);
 786                                 if (isipv6addr(h) &&
 787                                     (p = strchr(h, '%')) != NULL) {
 788                                         *p = '\0';
 789                                 }
 790                                 fprintf(fin, "Host: [%s]", h);
 791                                 free(h);
 792                         } else
 793                                 fprintf(fin, "Host: %s", host);
 794                         if (portnum != HTTP_PORT)
 795                                 fprintf(fin, ":%u", portnum);
 796                         fprintf(fin, "\r\n");
 797                         fprintf(fin, "Accept: */*\r\n");
 798                         fprintf(fin, "Connection: close\r\n");
 799                         if (restart_point) {
 800                                 fputs(leading, ttyout);
 801                                 fprintf(fin, "Range: bytes=" LLF "-\r\n",
 802                                     (LLT)restart_point);
 803                                 fprintf(ttyout, "restarting at " LLF,
 804                                     (LLT)restart_point);
 805                                 leading = ", ";
 806                                 hasleading++;
 807                         }
 808                         if (flushcache)
 809                                 fprintf(fin, "Cache-Control: no-cache\r\n");
 810                 }
 811                 if ((useragent=getenv("FTPUSERAGENT")) != NULL) {
 812                         fprintf(fin, "User-Agent: %s\r\n", useragent);
 813                 } else {
 814                         fprintf(fin, "User-Agent: %s/%s\r\n",
 815                             FTP_PRODUCT, FTP_VERSION);
 816                 }
 817                 if (wwwauth) {
 818                         if (verbose) {
 819                                 fprintf(ttyout, "%swith authorization",
 820                                     leading);
 821                                 leading = ", ";
 822                                 hasleading++;
 823                         }
 824                         fprintf(fin, "Authorization: %s\r\n", wwwauth);
 825                 }
 826                 if (proxyauth) {
 827                         if (verbose) {
 828                                 fprintf(ttyout,
 829                                     "%swith proxy authorization", leading);
 830                                 leading = ", ";
 831                                 hasleading++;
 832                         }
 833                         fprintf(fin, "Proxy-Authorization: %s\r\n", proxyauth);
 834                 }
 835                 if (verbose && hasleading)
 836                         fputs(")\n", ttyout);
 837                 fprintf(fin, "\r\n");
 838                 if (fflush(fin) == EOF) {
 839                         warn("Writing HTTP request");
 840                         goto cleanup_fetch_url;
 841                 }
 842
 843                                 /* Read the response */
 844                 len = get_line(fin, buf, sizeof(buf), &errormsg);
 845                 if (len < 0) {
 846                         if (*errormsg == '\n')
 847                                 errormsg++;
 848                         warnx("Receiving HTTP reply: %s", errormsg);
 849                         goto cleanup_fetch_url;
 850                 }
 851                 while (len > 0 && (ISLWS(buf[len-1])))
 852                         buf[--len] = '\0';
 853                 DPRINTF("fetch_url: received `%s'\n", buf);
 854
 855                                 /* Determine HTTP response code */
 856                 cp = strchr(buf, ' ');
 857                 if (cp == NULL)
 858                         goto improper;
 859                 else
 860                         cp++;
 861                 hcode = strtol(cp, &ep, 10);
 862                 if (*ep != '\0' && !isspace((unsigned char)*ep))
 863                         goto improper;
 864                 message = ftp_strdup(cp);
 865
 866                                 /* Read the rest of the header. */
 867                 while (1) {
 868                         len = get_line(fin, buf, sizeof(buf), &errormsg);
 869                         if (len < 0) {
 870                                 if (*errormsg == '\n')
 871                                         errormsg++;
 872                                 warnx("Receiving HTTP reply: %s", errormsg);
 873                                 goto cleanup_fetch_url;
 874                         }
 875                         while (len > 0 && (ISLWS(buf[len-1])))
 876                                 buf[--len] = '\0';
 877                         if (len == 0)
 878                                 break;
 879                         DPRINTF("fetch_url: received `%s'\n", buf);
 880
 881                 /*
 882                  * Look for some headers
 883                  */
 884
 885                         cp = buf;
 886
 887                         if (match_token(&cp, "Content-Length:")) {
 888                                 filesize = STRTOLL(cp, &ep, 10);
 889                                 if (filesize < 0 || *ep != '\0')
 890                                         goto improper;
 891                                 DPRINTF("fetch_url: parsed len as: " LLF "\n",
 892                                     (LLT)filesize);
 893
 894                         } else if (match_token(&cp, "Content-Range:")) {
 895                                 if (! match_token(&cp, "bytes"))
 896                                         goto improper;
 897
 898                                 if (*cp == '*')
 899                                         cp++;
 900                                 else {
 901                                         rangestart = STRTOLL(cp, &ep, 10);
 902                                         if (rangestart < 0 || *ep != '-')
 903                                                 goto improper;
 904                                         cp = ep + 1;
 905                                         rangeend = STRTOLL(cp, &ep, 10);
 906                                         if (rangeend < 0 || rangeend < rangestart)
 907                                                 goto improper;
 908                                         cp = ep;
 909                                 }
 910                                 if (*cp != '/')
 911                                         goto improper;
 912                                 cp++;
 913                                 if (*cp == '*')
 914                                         cp++;
 915                                 else {
 916                                         entitylen = STRTOLL(cp, &ep, 10);
 917                                         if (entitylen < 0)
 918                                                 goto improper;
 919                                         cp = ep;
 920                                 }
 921                                 if (*cp != '\0')
 922                                         goto improper;
 923
 924 #ifndef NO_DEBUG
 925                                 if (ftp_debug) {
 926                                         fprintf(ttyout, "parsed range as: ");
 927                                         if (rangestart == -1)
 928                                                 fprintf(ttyout, "*");
 929                                         else
 930                                                 fprintf(ttyout, LLF "-" LLF,
 931                                                     (LLT)rangestart,
 932                                                     (LLT)rangeend);
 933                                         fprintf(ttyout, "/" LLF "\n", (LLT)entitylen);
 934                                 }
 935 #endif
 936                                 if (! restart_point) {
 937                                         warnx(
 938                                     "Received unexpected Content-Range header");
 939                                         goto cleanup_fetch_url;
 940                                 }
 941
 942                         } else if (match_token(&cp, "Last-Modified:")) {
 943                                 struct tm parsed;
 944                                 char *t;
 945
 946                                 memset(&parsed, 0, sizeof(parsed));
 947                                                         /* RFC1123 */
 948                                 if ((t = strptime(cp,
 949                                                 "%a, %d %b %Y %H:%M:%S GMT",
 950                                                 &parsed))
 951                                                         /* RFC0850 */
 952                                     || (t = strptime(cp,
 953                                                 "%a, %d-%b-%y %H:%M:%S GMT",
 954                                                 &parsed))
 955                                                         /* asctime */
 956                                     || (t = strptime(cp,
 957                                                 "%a, %b %d %H:%M:%S %Y",
 958                                                 &parsed))) {
 959                                         parsed.tm_isdst = -1;
 960                                         if (*t == '\0')
 961                                                 mtime = timegm(&parsed);
 962 #ifndef NO_DEBUG
 963                                         if (ftp_debug && mtime != -1) {
 964                                                 fprintf(ttyout,
 965                                                     "parsed date as: %s",
 966                                                 rfc2822time(localtime(&mtime)));
 967                                         }
 968 #endif
 969                                 }
 970
 971                         } else if (match_token(&cp, "Location:")) {
 972                                 location = ftp_strdup(cp);
 973                                 DPRINTF("fetch_url: parsed location as `%s'\n",
 974                                     cp);
 975
 976                         } else if (match_token(&cp, "Transfer-Encoding:")) {
 977                                 if (match_token(&cp, "binary")) {
 978                                         warnx(
 979                         "Bogus transfer encoding `binary' (fetching anyway)");
 980                                         continue;
 981                                 }
 982                                 if (! (token = match_token(&cp, "chunked"))) {
 983                                         warnx(
 984                                     "Unsupported transfer encoding `%s'",
 985                                             token);
 986                                         goto cleanup_fetch_url;
 987                                 }
 988                                 ischunked++;
 989                                 DPRINTF("fetch_url: using chunked encoding\n");
 990
 991                         } else if (match_token(&cp, "Proxy-Authenticate:")
 992                                 || match_token(&cp, "WWW-Authenticate:")) {
 993                                 if (! (token = match_token(&cp, "Basic"))) {
 994                                         DPRINTF(
 995                         "fetch_url: skipping unknown auth scheme `%s'\n",
 996                                                     token);
 997                                         continue;
 998                                 }
 999                                 FREEPTR(auth);
1000                                 auth = ftp_strdup(token);
1001                                 DPRINTF("fetch_url: parsed auth as `%s'\n", cp);
1002                         }
1003
1004                 }
1005                                 /* finished parsing header */
1006
1007                 switch (hcode) {
1008                 case 200:
1009                         break;
1010                 case 206:
1011                         if (! restart_point) {
1012                                 warnx("Not expecting partial content header");
1013                                 goto cleanup_fetch_url;
1014                         }
1015                         break;
1016                 case 300:
1017                 case 301:
1018                 case 302:
1019                 case 303:
1020                 case 305:
1021                 case 307:
1022                         if (EMPTYSTRING(location)) {
1023                                 warnx(
1024                                 "No redirection Location provided by server");
1025                                 goto cleanup_fetch_url;
1026                         }
1027                         if (redirect_loop++ > 5) {
1028                                 warnx("Too many redirections requested");
1029                                 goto cleanup_fetch_url;
1030                         }
1031                         if (hcode == 305) {
1032                                 if (verbose)
1033                                         fprintf(ttyout, "Redirected via %s\n",
1034                                             location);
1035                                 rval = fetch_url(url, location,
1036                                     proxyauth, wwwauth);
1037                         } else {
1038                                 if (verbose)
1039                                         fprintf(ttyout, "Redirected to %s\n",
1040                                             location);
1041                                 rval = go_fetch(location);
1042                         }
1043                         goto cleanup_fetch_url;
1044 #ifndef NO_AUTH
1045                 case 401:
1046                 case 407:
1047                     {
1048                         char **authp;
1049                         char *auser, *apass;
1050
1051                         if (hcode == 401) {
1052                                 authp = &wwwauth;
1053                                 auser = uuser;
1054                                 apass = pass;
1055                         } else {
1056                                 authp = &proxyauth;
1057                                 auser = puser;
1058                                 apass = ppass;
1059                         }
1060                         if (verbose || *authp == NULL ||
1061                             auser == NULL || apass == NULL)
1062                                 fprintf(ttyout, "%s\n", message);
1063                         if (EMPTYSTRING(auth)) {
1064                                 warnx(
1065                             "No authentication challenge provided by server");
1066                                 goto cleanup_fetch_url;
1067                         }
1068                         if (*authp != NULL) {
1069                                 char reply[10];
1070
1071                                 fprintf(ttyout,
1072                                     "Authorization failed. Retry (y/n)? ");
1073                                 if (get_line(stdin, reply, sizeof(reply), NULL)
1074                                     < 0) {
1075                                         goto cleanup_fetch_url;
1076                                 }
1077                                 if (tolower((unsigned char)reply[0]) != 'y')
1078                                         goto cleanup_fetch_url;
1079                                 auser = NULL;
1080                                 apass = NULL;
1081                         }
1082                         if (auth_url(auth, authp, auser, apass) == 0) {
1083                                 rval = fetch_url(url, proxyenv,
1084                                     proxyauth, wwwauth);
1085                                 memset(*authp, 0, strlen(*authp));
1086                                 FREEPTR(*authp);
1087                         }
1088                         goto cleanup_fetch_url;
1089                     }
1090 #endif
1091                 default:
1092                         if (message)
1093                                 warnx("Error retrieving file `%s'", message);
1094                         else
1095                                 warnx("Unknown error retrieving file");
1096                         goto cleanup_fetch_url;
1097                 }
1098         }               /* end of ftp:// or http:// specific setup */
1099
1100                         /* Open the output file. */
1101         if (strcmp(savefile, "-") == 0) {
1102                 fout = stdout;
1103         } else if (*savefile == '|') {
1104                 oldintp = xsignal(SIGPIPE, SIG_IGN);
1105                 fout = popen(savefile + 1, "w");
1106                 if (fout == NULL) {
1107                         warn("Can't execute `%s'", savefile + 1);
1108                         goto cleanup_fetch_url;
1109                 }
1110                 closefunc = pclose;
1111         } else {
1112                 if ((rangeend != -1 && rangeend <= restart_point) ||
1113                     (rangestart == -1 && filesize != -1 && filesize <= restart_point)) {
1114                         /* already done */
1115                         if (verbose)
1116                                 fprintf(ttyout, "already done\n");
1117                         rval = 0;
1118                         goto cleanup_fetch_url;
1119                 }
1120                 if (restart_point && rangestart != -1) {
1121                         if (entitylen != -1)
1122                                 filesize = entitylen;
1123                         if (rangestart != restart_point) {
1124                                 warnx(
1125                                     "Size of `%s' differs from save file `%s'",
1126                                     url, savefile);
1127                                 goto cleanup_fetch_url;
1128                         }
1129                         fout = fopen(savefile, "a");
1130                 } else
1131                         fout = fopen(savefile, "w");
1132                 if (fout == NULL) {
1133                         warn("Can't open `%s'", savefile);
1134                         goto cleanup_fetch_url;
1135                 }
1136                 closefunc = fclose;
1137         }
1138
1139                         /* Trap signals */
1140         if (sigsetjmp(httpabort, 1))
1141                 goto cleanup_fetch_url;
1142         (void)xsignal(SIGQUIT, psummary);
1143         oldintr = xsignal(SIGINT, aborthttp);
1144
1145         if ((size_t)rcvbuf_size > bufsize) {
1146                 if (xferbuf)
1147                         (void)free(xferbuf);
1148                 bufsize = rcvbuf_size;
1149                 xferbuf = ftp_malloc(bufsize);
1150         }
1151
1152         bytes = 0;
1153         hashbytes = mark;
1154         progressmeter(-1);
1155
1156                         /* Finally, suck down the file. */
1157         do {
1158                 long chunksize;
1159                 short lastchunk;
1160
1161                 chunksize = 0;
1162                 lastchunk = 0;
1163                                         /* read chunk-size */
1164                 if (ischunked) {
1165                         if (fgets(xferbuf, bufsize, fin) == NULL) {
1166                                 warnx("Unexpected EOF reading chunk-size");
1167                                 goto cleanup_fetch_url;
1168                         }
1169                         errno = 0;
1170                         chunksize = strtol(xferbuf, &ep, 16);
1171                         if (ep == xferbuf) {
1172                                 warnx("Invalid chunk-size");
1173                                 goto cleanup_fetch_url;
1174                         }
1175                         if (errno == ERANGE || chunksize < 0) {
1176                                 errno = ERANGE;
1177                                 warn("Chunk-size `%.*s'",
1178                                     (int)(ep-xferbuf), xferbuf);
1179                                 goto cleanup_fetch_url;
1180                         }
1181
1182                                 /*
1183                                  * XXX: Work around bug in Apache 1.3.9 and
1184                                  *      1.3.11, which incorrectly put trailing
1185                                  *      space after the chunk-size.
1186                                  */
1187                         while (*ep == ' ')
1188                                 ep++;
1189
1190                                         /* skip [ chunk-ext ] */
1191                         if (*ep == ';') {
1192                                 while (*ep && *ep != '\r')
1193                                         ep++;
1194                         }
1195
1196                         if (strcmp(ep, "\r\n") != 0) {
1197                                 warnx("Unexpected data following chunk-size");
1198                                 goto cleanup_fetch_url;
1199                         }
1200                         DPRINTF("fetch_url: got chunk-size of " LLF "\n",
1201                             (LLT)chunksize);
1202                         if (chunksize == 0) {
1203                                 lastchunk = 1;
1204                                 goto chunkdone;
1205                         }
1206                 }
1207                                         /* transfer file or chunk */
1208                 while (1) {
1209                         struct timeval then, now, td;
1210                         off_t bufrem;
1211
1212                         if (rate_get)
1213                                 (void)gettimeofday(&then, NULL);
1214                         bufrem = rate_get ? rate_get : (off_t)bufsize;
1215                         if (ischunked)
1216                                 bufrem = MIN(chunksize, bufrem);
1217                         while (bufrem > 0) {
1218                                 flen = fread(xferbuf, sizeof(char),
1219                                     MIN((off_t)bufsize, bufrem), fin);
1220                                 if (flen <= 0)
1221                                         goto chunkdone;
1222                                 bytes += flen;
1223                                 bufrem -= flen;
1224                                 if (fwrite(xferbuf, sizeof(char), flen, fout)
1225                                     != flen) {
1226                                         warn("Writing `%s'", savefile);
1227                                         goto cleanup_fetch_url;
1228                                 }
1229                                 if (hash && !progress) {
1230                                         while (bytes >= hashbytes) {
1231                                                 (void)putc('#', ttyout);
1232                                                 hashbytes += mark;
1233                                         }
1234                                         (void)fflush(ttyout);
1235                                 }
1236                                 if (ischunked) {
1237                                         chunksize -= flen;
1238                                         if (chunksize <= 0)
1239                                                 break;
1240                                 }
1241                         }
1242                         if (rate_get) {
1243                                 while (1) {
1244                                         (void)gettimeofday(&now, NULL);
1245                                         timersub(&now, &then, &td);
1246                                         if (td.tv_sec > 0)
1247                                                 break;
1248                                         usleep(1000000 - td.tv_usec);
1249                                 }
1250                         }
1251                         if (ischunked && chunksize <= 0)
1252                                 break;
1253                 }
1254                                         /* read CRLF after chunk*/
1255  chunkdone:
1256                 if (ischunked) {
1257                         if (fgets(xferbuf, bufsize, fin) == NULL) {
1258                                 warnx("Unexpected EOF reading chunk CRLF");
1259                                 goto cleanup_fetch_url;
1260                         }
1261                         if (strcmp(xferbuf, "\r\n") != 0) {
1262                                 warnx("Unexpected data following chunk");
1263                                 goto cleanup_fetch_url;
1264                         }
1265                         if (lastchunk)
1266                                 break;
1267                 }
1268         } while (ischunked);
1269
1270 /* XXX: deal with optional trailer & CRLF here? */
1271
1272         if (hash && !progress && bytes > 0) {
1273                 if (bytes < mark)
1274                         (void)putc('#', ttyout);
1275                 (void)putc('\n', ttyout);
1276         }
1277         if (ferror(fin)) {
1278                 warn("Reading file");
1279                 goto cleanup_fetch_url;
1280         }
1281         progressmeter(1);
1282         (void)fflush(fout);
1283         if (closefunc == fclose && mtime != -1) {
1284                 struct timeval tval[2];
1285
1286                 (void)gettimeofday(&tval[0], NULL);
1287                 tval[1].tv_sec = mtime;
1288                 tval[1].tv_usec = 0;
1289                 (*closefunc)(fout);
1290                 fout = NULL;
1291
1292                 if (utimes(savefile, tval) == -1) {
1293                         fprintf(ttyout,
1294                             "Can't change modification time to %s",
1295                             rfc2822time(localtime(&mtime)));
1296                 }
1297         }
1298         if (bytes > 0)
1299                 ptransfer(0);
1300         bytes = 0;
1301
1302         rval = 0;
1303         goto cleanup_fetch_url;
1304
1305  improper:
1306         warnx("Improper response from `%s:%s'", host, port);
1307
1308  cleanup_fetch_url:
1309         if (oldintr)
1310                 (void)xsignal(SIGINT, oldintr);
1311         if (oldintp)
1312                 (void)xsignal(SIGPIPE, oldintp);
1313         if (fin != NULL)
1314                 fclose(fin);
1315         else if (s != -1)
1316                 close(s);
1317         if (closefunc != NULL && fout != NULL)
1318                 (*closefunc)(fout);
1319         if (res0)
1320                 freeaddrinfo(res0);
1321         FREEPTR(savefile);
1322         FREEPTR(uuser);
1323         if (pass != NULL)
1324                 memset(pass, 0, strlen(pass));
1325         FREEPTR(pass);
1326         FREEPTR(host);
1327         FREEPTR(port);
1328         FREEPTR(path);
1329         FREEPTR(decodedpath);
1330         FREEPTR(puser);
1331         if (ppass != NULL)
1332                 memset(ppass, 0, strlen(ppass));
1333         FREEPTR(ppass);
1334         FREEPTR(auth);
1335         FREEPTR(location);
1336         FREEPTR(message);
1337         return (rval);
1338 }
1339
1340 /*
1341  * Abort a HTTP retrieval
1342  */
1343 void
1344 aborthttp(int notused)
1345 {
1346         char msgbuf[100];
1347         size_t len;
1348
1349         sigint_raised = 1;
1350         alarmtimer(0);
1351         len = strlcpy(msgbuf, "\nHTTP fetch aborted.\n", sizeof(msgbuf));
1352         write(fileno(ttyout), msgbuf, len);
1353         siglongjmp(httpabort, 1);
1354 }
1355
1356 /*
1357  * Retrieve ftp URL or classic ftp argument using FTP.
1358  * Returns 1 on failure, 0 on completed xfer, -1 if ftp connection
1359  * is still open (e.g, ftp xfer with trailing /)
1360  */
1361 static int
1362 fetch_ftp(const char *url)
1363 {
1364         char            *cp, *xargv[5], rempath[MAXPATHLEN];
1365         char            *host, *path, *dir, *file, *uuser, *pass;
1366         char            *port;
1367         char             cmdbuf[MAXPATHLEN];
1368         char             dirbuf[4];
1369         int              dirhasglob, filehasglob, rval, transtype, xargc;
1370         int              oanonftp, oautologin;
1371         in_port_t        portnum;
1372         url_t            urltype;
1373
1374         DPRINTF("fetch_ftp: `%s'\n", url);
1375         host = path = dir = file = uuser = pass = NULL;
1376         port = NULL;
1377         rval = 1;
1378         transtype = TYPE_I;
1379
1380         if (STRNEQUAL(url, FTP_URL)) {
1381                 if ((parse_url(url, "URL", &urltype, &uuser, &pass,
1382                     &host, &port, &portnum, &path) == -1) ||
1383                     (uuser != NULL && *uuser == '\0') ||
1384                     EMPTYSTRING(host)) {
1385                         warnx("Invalid URL `%s'", url);
1386                         goto cleanup_fetch_ftp;
1387                 }
1388                 /*
1389                  * Note: Don't url_decode(path) here.  We need to keep the
1390                  * distinction between "/" and "%2F" until later.
1391                  */
1392
1393                                         /* check for trailing ';type=[aid]' */
1394                 if (! EMPTYSTRING(path) && (cp = strrchr(path, ';')) != NULL) {
1395                         if (strcasecmp(cp, ";type=a") == 0)
1396                                 transtype = TYPE_A;
1397                         else if (strcasecmp(cp, ";type=i") == 0)
1398                                 transtype = TYPE_I;
1399                         else if (strcasecmp(cp, ";type=d") == 0) {
1400                                 warnx(
1401                             "Directory listing via a URL is not supported");
1402                                 goto cleanup_fetch_ftp;
1403                         } else {
1404                                 warnx("Invalid suffix `%s' in URL `%s'", cp,
1405                                     url);
1406                                 goto cleanup_fetch_ftp;
1407                         }
1408                         *cp = 0;
1409                 }
1410         } else {                        /* classic style `[user@]host:[file]' */
1411                 urltype = CLASSIC_URL_T;
1412                 host = ftp_strdup(url);
1413                 cp = strchr(host, '@');
1414                 if (cp != NULL) {
1415                         *cp = '\0';
1416                         uuser = host;
1417                         anonftp = 0;    /* disable anonftp */
1418                         host = ftp_strdup(cp + 1);
1419                 }
1420                 cp = strchr(host, ':');
1421                 if (cp != NULL) {
1422                         *cp = '\0';
1423                         path = ftp_strdup(cp + 1);
1424                 }
1425         }
1426         if (EMPTYSTRING(host))
1427                 goto cleanup_fetch_ftp;
1428
1429                         /* Extract the file and (if present) directory name. */
1430         dir = path;
1431         if (! EMPTYSTRING(dir)) {
1432                 /*
1433                  * If we are dealing with classic `[user@]host:[path]' syntax,
1434                  * then a path of the form `/file' (resulting from input of the
1435                  * form `host:/file') means that we should do "CWD /" before
1436                  * retrieving the file.  So we set dir="/" and file="file".
1437                  *
1438                  * But if we are dealing with URLs like `ftp://host/path' then
1439                  * a path of the form `/file' (resulting from a URL of the form
1440                  * `ftp://host//file') means that we should do `CWD ' (with an
1441                  * empty argument) before retrieving the file.  So we set
1442                  * dir="" and file="file".
1443                  *
1444                  * If the path does not contain / at all, we set dir=NULL.
1445                  * (We get a path without any slashes if we are dealing with
1446                  * classic `[user@]host:[file]' or URL `ftp://host/file'.)
1447                  *
1448                  * In all other cases, we set dir to a string that does not
1449                  * include the final '/' that separates the dir part from the
1450                  * file part of the path.  (This will be the empty string if
1451                  * and only if we are dealing with a path of the form `/file'
1452                  * resulting from an URL of the form `ftp://host//file'.)
1453                  */
1454                 cp = strrchr(dir, '/');
1455                 if (cp == dir && urltype == CLASSIC_URL_T) {
1456                         file = cp + 1;
1457                         (void)strlcpy(dirbuf, "/", sizeof(dirbuf));
1458                         dir = dirbuf;
1459                 } else if (cp != NULL) {
1460                         *cp++ = '\0';
1461                         file = cp;
1462                 } else {
1463                         file = dir;
1464                         dir = NULL;
1465                 }
1466         } else
1467                 dir = NULL;
1468         if (urltype == FTP_URL_T && file != NULL) {
1469                 url_decode(file);
1470                 /* but still don't url_decode(dir) */
1471         }
1472         DPRINTF("fetch_ftp: user `%s' pass `%s' host %s port %s "
1473             "path `%s' dir `%s' file `%s'\n",
1474             STRorNULL(uuser), STRorNULL(pass),
1475             STRorNULL(host), STRorNULL(port),
1476             STRorNULL(path), STRorNULL(dir), STRorNULL(file));
1477
1478         dirhasglob = filehasglob = 0;
1479         if (doglob && urltype == CLASSIC_URL_T) {
1480                 if (! EMPTYSTRING(dir) && strpbrk(dir, "*?[]{}") != NULL)
1481                         dirhasglob = 1;
1482                 if (! EMPTYSTRING(file) && strpbrk(file, "*?[]{}") != NULL)
1483                         filehasglob = 1;
1484         }
1485
1486                         /* Set up the connection */
1487         oanonftp = anonftp;
1488         if (connected)
1489                 disconnect(0, NULL);
1490         anonftp = oanonftp;
1491         (void)strlcpy(cmdbuf, getprogname(), sizeof(cmdbuf));
1492         xargv[0] = cmdbuf;
1493         xargv[1] = host;
1494         xargv[2] = NULL;
1495         xargc = 2;
1496         if (port) {
1497                 xargv[2] = port;
1498                 xargv[3] = NULL;
1499                 xargc = 3;
1500         }
1501         oautologin = autologin;
1502                 /* don't autologin in setpeer(), use ftp_login() below */
1503         autologin = 0;
1504         setpeer(xargc, xargv);
1505         autologin = oautologin;
1506         if ((connected == 0) ||
1507             (connected == 1 && !ftp_login(host, uuser, pass))) {
1508                 warnx("Can't connect or login to host `%s:%s'",
1509                         host, port ? port : "?");
1510                 goto cleanup_fetch_ftp;
1511         }
1512
1513         switch (transtype) {
1514         case TYPE_A:
1515                 setascii(1, xargv);
1516                 break;
1517         case TYPE_I:
1518                 setbinary(1, xargv);
1519                 break;
1520         default:
1521                 errx(1, "fetch_ftp: unknown transfer type %d", transtype);
1522         }
1523
1524                 /*
1525                  * Change directories, if necessary.
1526                  *
1527                  * Note: don't use EMPTYSTRING(dir) below, because
1528                  * dir=="" means something different from dir==NULL.
1529                  */
1530         if (dir != NULL && !dirhasglob) {
1531                 char *nextpart;
1532
1533                 /*
1534                  * If we are dealing with a classic `[user@]host:[path]'
1535                  * (urltype is CLASSIC_URL_T) then we have a raw directory
1536                  * name (not encoded in any way) and we can change
1537                  * directories in one step.
1538                  *
1539                  * If we are dealing with an `ftp://host/path' URL
1540                  * (urltype is FTP_URL_T), then RFC3986 says we need to
1541                  * send a separate CWD command for each unescaped "/"
1542                  * in the path, and we have to interpret %hex escaping
1543                  * *after* we find the slashes.  It's possible to get
1544                  * empty components here, (from multiple adjacent
1545                  * slashes in the path) and RFC3986 says that we should
1546                  * still do `CWD ' (with a null argument) in such cases.
1547                  *
1548                  * Many ftp servers don't support `CWD ', so if there's an
1549                  * error performing that command, bail out with a descriptive
1550                  * message.
1551                  *
1552                  * Examples:
1553                  *
1554                  * host:                        dir="", urltype=CLASSIC_URL_T
1555                  *              logged in (to default directory)
1556                  * host:file                    dir=NULL, urltype=CLASSIC_URL_T
1557                  *              "RETR file"
1558                  * host:dir/                    dir="dir", urltype=CLASSIC_URL_T
1559                  *              "CWD dir", logged in
1560                  * ftp://host/                  dir="", urltype=FTP_URL_T
1561                  *              logged in (to default directory)
1562                  * ftp://host/dir/              dir="dir", urltype=FTP_URL_T
1563                  *              "CWD dir", logged in
1564                  * ftp://host/file              dir=NULL, urltype=FTP_URL_T
1565                  *              "RETR file"
1566                  * ftp://host//file             dir="", urltype=FTP_URL_T
1567                  *              "CWD ", "RETR file"
1568                  * host:/file                   dir="/", urltype=CLASSIC_URL_T
1569                  *              "CWD /", "RETR file"
1570                  * ftp://host///file            dir="/", urltype=FTP_URL_T
1571                  *              "CWD ", "CWD ", "RETR file"
1572                  * ftp://host/%2F/file          dir="%2F", urltype=FTP_URL_T
1573                  *              "CWD /", "RETR file"
1574                  * ftp://host/foo/file          dir="foo", urltype=FTP_URL_T
1575                  *              "CWD foo", "RETR file"
1576                  * ftp://host/foo/bar/file      dir="foo/bar"
1577                  *              "CWD foo", "CWD bar", "RETR file"
1578                  * ftp://host//foo/bar/file     dir="/foo/bar"
1579                  *              "CWD ", "CWD foo", "CWD bar", "RETR file"
1580                  * ftp://host/foo//bar/file     dir="foo//bar"
1581                  *              "CWD foo", "CWD ", "CWD bar", "RETR file"
1582                  * ftp://host/%2F/foo/bar/file  dir="%2F/foo/bar"
1583                  *              "CWD /", "CWD foo", "CWD bar", "RETR file"
1584                  * ftp://host/%2Ffoo/bar/file   dir="%2Ffoo/bar"
1585                  *              "CWD /foo", "CWD bar", "RETR file"
1586                  * ftp://host/%2Ffoo%2Fbar/file dir="%2Ffoo%2Fbar"
1587                  *              "CWD /foo/bar", "RETR file"
1588                  * ftp://host/%2Ffoo%2Fbar%2Ffile       dir=NULL
1589                  *              "RETR /foo/bar/file"
1590                  *
1591                  * Note that we don't need `dir' after this point.
1592                  */
1593                 do {
1594                         if (urltype == FTP_URL_T) {
1595                                 nextpart = strchr(dir, '/');
1596                                 if (nextpart) {
1597                                         *nextpart = '\0';
1598                                         nextpart++;
1599                                 }
1600                                 url_decode(dir);
1601                         } else
1602                                 nextpart = NULL;
1603                         DPRINTF("fetch_ftp: dir `%s', nextpart `%s'\n",
1604                             STRorNULL(dir), STRorNULL(nextpart));
1605                         if (urltype == FTP_URL_T || *dir != '\0') {
1606                                 (void)strlcpy(cmdbuf, "cd", sizeof(cmdbuf));
1607                                 xargv[0] = cmdbuf;
1608                                 xargv[1] = dir;
1609                                 xargv[2] = NULL;
1610                                 dirchange = 0;
1611                                 cd(2, xargv);
1612                                 if (! dirchange) {
1613                                         if (*dir == '\0' && code == 500)
1614                                                 fprintf(stderr,
1615 "\n"
1616 "ftp: The `CWD ' command (without a directory), which is required by\n"
1617 "     RFC3986 to support the empty directory in the URL pathname (`//'),\n"
1618 "     conflicts with the server's conformance to RFC0959.\n"
1619 "     Try the same URL without the `//' in the URL pathname.\n"
1620 "\n");
1621                                         goto cleanup_fetch_ftp;
1622                                 }
1623                         }
1624                         dir = nextpart;
1625                 } while (dir != NULL);
1626         }
1627
1628         if (EMPTYSTRING(file)) {
1629                 rval = -1;
1630                 goto cleanup_fetch_ftp;
1631         }
1632
1633         if (dirhasglob) {
1634                 (void)strlcpy(rempath, dir,     sizeof(rempath));
1635                 (void)strlcat(rempath, "/",     sizeof(rempath));
1636                 (void)strlcat(rempath, file,    sizeof(rempath));
1637                 file = rempath;
1638         }
1639
1640                         /* Fetch the file(s). */
1641         xargc = 2;
1642         (void)strlcpy(cmdbuf, "get", sizeof(cmdbuf));
1643         xargv[0] = cmdbuf;
1644         xargv[1] = file;
1645         xargv[2] = NULL;
1646         if (dirhasglob || filehasglob) {
1647                 int ointeractive;
1648
1649                 ointeractive = interactive;
1650                 interactive = 0;
1651                 if (restartautofetch)
1652                         (void)strlcpy(cmdbuf, "mreget", sizeof(cmdbuf));
1653                 else
1654                         (void)strlcpy(cmdbuf, "mget", sizeof(cmdbuf));
1655                 xargv[0] = cmdbuf;
1656                 mget(xargc, xargv);
1657                 interactive = ointeractive;
1658         } else {
1659                 if (outfile == NULL) {
1660                         cp = strrchr(file, '/');        /* find savefile */
1661                         if (cp != NULL)
1662                                 outfile = cp + 1;
1663                         else
1664                                 outfile = file;
1665                 }
1666                 xargv[2] = (char *)outfile;
1667                 xargv[3] = NULL;
1668                 xargc++;
1669                 if (restartautofetch)
1670                         reget(xargc, xargv);
1671                 else
1672                         get(xargc, xargv);
1673         }
1674
1675         if ((code / 100) == COMPLETE)
1676                 rval = 0;
1677
1678  cleanup_fetch_ftp:
1679         FREEPTR(port);
1680         FREEPTR(host);
1681         FREEPTR(path);
1682         FREEPTR(uuser);
1683         if (pass)
1684                 memset(pass, 0, strlen(pass));
1685         FREEPTR(pass);
1686         return (rval);
1687 }
1688
1689 /*
1690  * Retrieve the given file to outfile.
1691  * Supports arguments of the form:
1692  *      "host:path", "ftp://host/path"  if $ftpproxy, call fetch_url() else
1693  *                                      call fetch_ftp()
1694  *      "http://host/path"              call fetch_url() to use HTTP
1695  *      "file:///path"                  call fetch_url() to copy
1696  *      "about:..."                     print a message
1697  *
1698  * Returns 1 on failure, 0 on completed xfer, -1 if ftp connection
1699  * is still open (e.g, ftp xfer with trailing /)
1700  */
1701 static int
1702 go_fetch(const char *url)
1703 {
1704         char *proxyenv;
1705
1706 #ifndef NO_ABOUT
1707         /*
1708          * Check for about:*
1709          */
1710         if (STRNEQUAL(url, ABOUT_URL)) {
1711                 url += sizeof(ABOUT_URL) -1;
1712                 if (strcasecmp(url, "ftp") == 0 ||
1713                     strcasecmp(url, "tnftp") == 0) {
1714                         fputs(
1715 "This version of ftp has been enhanced by Luke Mewburn <lukem@NetBSD.org>\n"
1716 "for the NetBSD project.  Execute `man ftp' for more details.\n", ttyout);
1717                 } else if (strcasecmp(url, "lukem") == 0) {
1718                         fputs(
1719 "Luke Mewburn is the author of most of the enhancements in this ftp client.\n"
1720 "Please email feedback to <lukem@NetBSD.org>.\n", ttyout);
1721                 } else if (strcasecmp(url, "netbsd") == 0) {
1722                         fputs(
1723 "NetBSD is a freely available and redistributable UNIX-like operating system.\n"
1724 "For more information, see http://www.NetBSD.org/\n", ttyout);
1725                 } else if (strcasecmp(url, "version") == 0) {
1726                         fprintf(ttyout, "Version: %s %s%s\n",
1727                             FTP_PRODUCT, FTP_VERSION,
1728 #ifdef INET6
1729                             ""
1730 #else
1731                             " (-IPv6)"
1732 #endif
1733                         );
1734                 } else {
1735                         fprintf(ttyout, "`%s' is an interesting topic.\n", url);
1736                 }
1737                 fputs("\n", ttyout);
1738                 return (0);
1739         }
1740 #endif
1741
1742         /*
1743          * Check for file:// and http:// URLs.
1744          */
1745         if (STRNEQUAL(url, HTTP_URL) || STRNEQUAL(url, FILE_URL))
1746                 return (fetch_url(url, NULL, NULL, NULL));
1747
1748         /*
1749          * Try FTP URL-style and host:file arguments next.
1750          * If ftpproxy is set with an FTP URL, use fetch_url()
1751          * Othewise, use fetch_ftp().
1752          */
1753         proxyenv = getoptionvalue("ftp_proxy");
1754         if (!EMPTYSTRING(proxyenv) && STRNEQUAL(url, FTP_URL))
1755                 return (fetch_url(url, NULL, NULL, NULL));
1756
1757         return (fetch_ftp(url));
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
1765  * the connection remains open, and the function will return -1
1766  * (to indicate the connection is alive).
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
1773 auto_fetch(int argc, char *argv[])
1774 {
1775         volatile int    argpos, rval;
1776
1777         argpos = rval = 0;
1778
1779         if (sigsetjmp(toplevel, 1)) {
1780                 if (connected)
1781                         disconnect(0, NULL);
1782                 if (rval > 0)
1783                         rval = argpos + 1;
1784                 return (rval);
1785         }
1786         (void)xsignal(SIGINT, intr);
1787         (void)xsignal(SIGPIPE, lostpeer);
1788
1789         /*
1790          * Loop through as long as there's files to fetch.
1791          */
1792         for (; (rval == 0) && (argpos < argc); argpos++) {
1793                 if (strchr(argv[argpos], ':') == NULL)
1794                         break;
1795                 redirect_loop = 0;
1796                 if (!anonftp)
1797                         anonftp = 2;    /* Handle "automatic" transfers. */
1798                 rval = go_fetch(argv[argpos]);
1799                 if (outfile != NULL && strcmp(outfile, "-") != 0
1800                     && outfile[0] != '|')
1801                         outfile = NULL;
1802                 if (rval > 0)
1803                         rval = argpos + 1;
1804         }
1805
1806         if (connected && rval != -1)
1807                 disconnect(0, NULL);
1808         return (rval);
1809 }
1810
1811
1812 /*
1813  * Upload multiple files from the command line.
1814  *
1815  * If an error occurs the return value will be the offset+1 in
1816  * argv[] of the file that caused a problem (i.e, argv[x]
1817  * returns x+1)
1818  * Otherwise, 0 is returned if all files uploaded successfully.
1819  */
1820 int
1821 auto_put(int argc, char **argv, const char *uploadserver)
1822 {
1823         char    *uargv[4], *path, *pathsep;
1824         int      uargc, rval, argpos;
1825         size_t   len;
1826         char     cmdbuf[MAX_C_NAME];
1827
1828         (void)strlcpy(cmdbuf, "mput", sizeof(cmdbuf));
1829         uargv[0] = cmdbuf;
1830         uargv[1] = argv[0];
1831         uargc = 2;
1832         uargv[2] = uargv[3] = NULL;
1833         pathsep = NULL;
1834         rval = 1;
1835
1836         DPRINTF("auto_put: target `%s'\n", uploadserver);
1837
1838         path = ftp_strdup(uploadserver);
1839         len = strlen(path);
1840         if (path[len - 1] != '/' && path[len - 1] != ':') {
1841                         /*
1842                          * make sure we always pass a directory to auto_fetch
1843                          */
1844                 if (argc > 1) {         /* more than one file to upload */
1845                         len = strlen(uploadserver) + 2; /* path + "/" + "\0" */
1846                         free(path);
1847                         path = (char *)ftp_malloc(len);
1848                         (void)strlcpy(path, uploadserver, len);
1849                         (void)strlcat(path, "/", len);
1850                 } else {                /* single file to upload */
1851                         (void)strlcpy(cmdbuf, "put", sizeof(cmdbuf));
1852                         uargv[0] = cmdbuf;
1853                         pathsep = strrchr(path, '/');
1854                         if (pathsep == NULL) {
1855                                 pathsep = strrchr(path, ':');
1856                                 if (pathsep == NULL) {
1857                                         warnx("Invalid URL `%s'", path);
1858                                         goto cleanup_auto_put;
1859                                 }
1860                                 pathsep++;
1861                                 uargv[2] = ftp_strdup(pathsep);
1862                                 pathsep[0] = '/';
1863                         } else
1864                                 uargv[2] = ftp_strdup(pathsep + 1);
1865                         pathsep[1] = '\0';
1866                         uargc++;
1867                 }
1868         }
1869         DPRINTF("auto_put: URL `%s' argv[2] `%s'\n",
1870             path, STRorNULL(uargv[2]));
1871
1872                         /* connect and cwd */
1873         rval = auto_fetch(1, &path);
1874         if(rval >= 0)
1875                 goto cleanup_auto_put;
1876
1877         rval = 0;
1878
1879                         /* target filename provided; upload 1 file */
1880                         /* XXX : is this the best way? */
1881         if (uargc == 3) {
1882                 uargv[1] = argv[0];
1883                 put(uargc, uargv);
1884                 if ((code / 100) != COMPLETE)
1885                         rval = 1;
1886         } else {        /* otherwise a target dir: upload all files to it */
1887                 for(argpos = 0; argv[argpos] != NULL; argpos++) {
1888                         uargv[1] = argv[argpos];
1889                         mput(uargc, uargv);
1890                         if ((code / 100) != COMPLETE) {
1891                                 rval = argpos + 1;
1892                                 break;
1893                         }
1894                 }
1895         }
1896
1897  cleanup_auto_put:
1898         free(path);
1899         FREEPTR(uargv[2]);
1900         return (rval);
1901 }