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authorGavin Atkinson <gavin@FreeBSD.org>2011-06-19 16:54:06 +0000
committerGavin Atkinson <gavin@FreeBSD.org>2011-06-19 16:54:06 +0000
commit04a7382c466e38a190fbd87cd29d712445a23c00 (patch)
treed536f826304d5d1048670212a5e33e4818109b14 /contrib/lukemftp/src/fetch.c
parentf367c1fb527185881321f1f4745a0e06337e0ff9 (diff)
downloadsrc-04a7382c466e38a190fbd87cd29d712445a23c00.tar.gz
src-04a7382c466e38a190fbd87cd29d712445a23c00.zip
Bootstrap lukemftp vendor areavendor/NetBSD/lukemftp
Notes
Notes: svn path=/vendor/lukemftp/dist/; revision=223300
Diffstat (limited to 'contrib/lukemftp/src/fetch.c')
-rw-r--r--contrib/lukemftp/src/fetch.c1834
1 files changed, 0 insertions, 1834 deletions
diff --git a/contrib/lukemftp/src/fetch.c b/contrib/lukemftp/src/fetch.c
deleted file mode 100644
index e2acb01de178..000000000000
--- a/contrib/lukemftp/src/fetch.c
+++ /dev/null
@@ -1,1834 +0,0 @@
-/* $NetBSD: fetch.c,v 1.158 2005/05/14 15:26:43 lukem Exp $ */
-
-/*-
- * Copyright (c) 1997-2004 The NetBSD Foundation, Inc.
- * All rights reserved.
- *
- * This code is derived from software contributed to The NetBSD Foundation
- * by Luke Mewburn.
- *
- * This code is derived from software contributed to The NetBSD Foundation
- * by Scott Aaron Bamford.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the NetBSD
- * Foundation, Inc. and its contributors.
- * 4. Neither the name of The NetBSD Foundation nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
- * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
- * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include <sys/cdefs.h>
-#ifndef lint
-__RCSID("$NetBSD: fetch.c,v 1.158 2005/05/14 15:26:43 lukem Exp $");
-#endif /* not lint */
-
-/*
- * FTP User Program -- Command line file retrieval
- */
-
-#include <sys/types.h>
-#include <sys/param.h>
-#include <sys/socket.h>
-#include <sys/stat.h>
-#include <sys/time.h>
-
-#include <netinet/in.h>
-
-#include <arpa/ftp.h>
-#include <arpa/inet.h>
-
-#include <ctype.h>
-#include <err.h>
-#include <errno.h>
-#include <netdb.h>
-#include <fcntl.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <time.h>
-#include <libutil.h>
-
-#include "ftp_var.h"
-#include "version.h"
-
-typedef enum {
- UNKNOWN_URL_T=-1,
- HTTP_URL_T,
- FTP_URL_T,
- FILE_URL_T,
- CLASSIC_URL_T
-} url_t;
-
-void aborthttp(int);
-#ifndef NO_AUTH
-static int auth_url(const char *, char **, const char *, const char *);
-static void base64_encode(const unsigned char *, size_t, unsigned char *);
-#endif
-static int go_fetch(const char *);
-static int fetch_ftp(const char *);
-static int fetch_url(const char *, const char *, char *, char *);
-static const char *match_token(const char **, const char *);
-static int parse_url(const char *, const char *, url_t *, char **,
- char **, char **, char **, in_port_t *, char **);
-static void url_decode(char *);
-
-static int redirect_loop;
-
-
-#define STRNEQUAL(a,b) (strncasecmp((a), (b), sizeof((b))-1) == 0)
-#define ISLWS(x) ((x)=='\r' || (x)=='\n' || (x)==' ' || (x)=='\t')
-#define SKIPLWS(x) do { while (ISLWS((*x))) x++; } while (0)
-
-
-#define ABOUT_URL "about:" /* propaganda */
-#define FILE_URL "file://" /* file URL prefix */
-#define FTP_URL "ftp://" /* ftp URL prefix */
-#define HTTP_URL "http://" /* http URL prefix */
-
-
-/*
- * Determine if token is the next word in buf (case insensitive).
- * If so, advance buf past the token and any trailing LWS, and
- * return a pointer to the token (in buf). Otherwise, return NULL.
- * token may be preceeded by LWS.
- * token must be followed by LWS or NUL. (I.e, don't partial match).
- */
-static const char *
-match_token(const char **buf, const char *token)
-{
- const char *p, *orig;
- size_t tlen;
-
- tlen = strlen(token);
- p = *buf;
- SKIPLWS(p);
- orig = p;
- if (strncasecmp(p, token, tlen) != 0)
- return NULL;
- p += tlen;
- if (*p != '\0' && !ISLWS(*p))
- return NULL;
- SKIPLWS(p);
- orig = *buf;
- *buf = p;
- return orig;
-}
-
-#ifndef NO_AUTH
-/*
- * Generate authorization response based on given authentication challenge.
- * Returns -1 if an error occurred, otherwise 0.
- * Sets response to a malloc(3)ed string; caller should free.
- */
-static int
-auth_url(const char *challenge, char **response, const char *guser,
- const char *gpass)
-{
- const char *cp, *scheme;
- char *ep, *clear, *realm;
- char user[BUFSIZ], *pass;
- int rval;
- size_t len, clen, rlen;
-
- *response = NULL;
- clear = realm = NULL;
- rval = -1;
- cp = challenge;
- scheme = "Basic"; /* only support Basic authentication */
-
- if (debug)
- fprintf(ttyout, "auth_url: challenge `%s'\n", challenge);
-
- if (! match_token(&cp, scheme)) {
- warnx("Unsupported authentication challenge - `%s'",
- challenge);
- goto cleanup_auth_url;
- }
-
-#define REALM "realm=\""
- if (STRNEQUAL(cp, REALM))
- cp += sizeof(REALM) - 1;
- else {
- warnx("Unsupported authentication challenge - `%s'",
- challenge);
- goto cleanup_auth_url;
- }
-/* XXX: need to improve quoted-string parsing to support \ quoting, etc. */
- if ((ep = strchr(cp, '\"')) != NULL) {
- size_t len = ep - cp;
-
- realm = (char *)xmalloc(len + 1);
- (void)strlcpy(realm, cp, len + 1);
- } else {
- warnx("Unsupported authentication challenge - `%s'",
- challenge);
- goto cleanup_auth_url;
- }
-
- fprintf(ttyout, "Username for `%s': ", realm);
- if (guser != NULL) {
- (void)strlcpy(user, guser, sizeof(user));
- fprintf(ttyout, "%s\n", user);
- } else {
- (void)fflush(ttyout);
- if (fgets(user, sizeof(user) - 1, stdin) == NULL) {
- clearerr(stdin);
- goto cleanup_auth_url;
- }
- user[strlen(user) - 1] = '\0';
- }
- if (gpass != NULL)
- pass = (char *)gpass;
- else
- pass = getpass("Password: ");
-
- clen = strlen(user) + strlen(pass) + 2; /* user + ":" + pass + "\0" */
- clear = (char *)xmalloc(clen);
- (void)strlcpy(clear, user, clen);
- (void)strlcat(clear, ":", clen);
- (void)strlcat(clear, pass, clen);
- if (gpass == NULL)
- memset(pass, 0, strlen(pass));
-
- /* scheme + " " + enc + "\0" */
- rlen = strlen(scheme) + 1 + (clen + 2) * 4 / 3 + 1;
- *response = (char *)xmalloc(rlen);
- (void)strlcpy(*response, scheme, rlen);
- len = strlcat(*response, " ", rlen);
- /* use `clen - 1' to not encode the trailing NUL */
- base64_encode((unsigned char *)clear, clen - 1,
- (unsigned char *)*response + len);
- memset(clear, 0, clen);
- rval = 0;
-
- cleanup_auth_url:
- FREEPTR(clear);
- FREEPTR(realm);
- return (rval);
-}
-
-/*
- * Encode len bytes starting at clear using base64 encoding into encoded,
- * which should be at least ((len + 2) * 4 / 3 + 1) in size.
- */
-static void
-base64_encode(const unsigned char *clear, size_t len, unsigned char *encoded)
-{
- static const unsigned char enc[] =
- "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
- unsigned char *cp;
- int i;
-
- cp = encoded;
- for (i = 0; i < len; i += 3) {
- *(cp++) = enc[((clear[i + 0] >> 2))];
- *(cp++) = enc[((clear[i + 0] << 4) & 0x30)
- | ((clear[i + 1] >> 4) & 0x0f)];
- *(cp++) = enc[((clear[i + 1] << 2) & 0x3c)
- | ((clear[i + 2] >> 6) & 0x03)];
- *(cp++) = enc[((clear[i + 2] ) & 0x3f)];
- }
- *cp = '\0';
- while (i-- > len)
- *(--cp) = '=';
-}
-#endif
-
-/*
- * Decode %xx escapes in given string, `in-place'.
- */
-static void
-url_decode(char *url)
-{
- unsigned char *p, *q;
-
- if (EMPTYSTRING(url))
- return;
- p = q = (unsigned char *)url;
-
-#define HEXTOINT(x) (x - (isdigit(x) ? '0' : (islower(x) ? 'a' : 'A') - 10))
- while (*p) {
- if (p[0] == '%'
- && p[1] && isxdigit((unsigned char)p[1])
- && p[2] && isxdigit((unsigned char)p[2])) {
- *q++ = HEXTOINT(p[1]) * 16 + HEXTOINT(p[2]);
- p+=3;
- } else
- *q++ = *p++;
- }
- *q = '\0';
-}
-
-
-/*
- * Parse URL of form:
- * <type>://[<user>[:<password>]@]<host>[:<port>][/<path>]
- * Returns -1 if a parse error occurred, otherwise 0.
- * It's the caller's responsibility to url_decode() the returned
- * user, pass and path.
- *
- * Sets type to url_t, each of the given char ** pointers to a
- * malloc(3)ed strings of the relevant section, and port to
- * the number given, or ftpport if ftp://, or httpport if http://.
- *
- * If <host> is surrounded by `[' and ']', it's parsed as an
- * IPv6 address (as per RFC 2732).
- *
- * XXX: this is not totally RFC 1738 compliant; <path> will have the
- * leading `/' unless it's an ftp:// URL, as this makes things easier
- * for file:// and http:// URLs. ftp:// URLs have the `/' between the
- * host and the URL-path removed, but any additional leading slashes
- * in the URL-path are retained (because they imply that we should
- * later do "CWD" with a null argument).
- *
- * Examples:
- * input URL output path
- * --------- -----------
- * "ftp://host" NULL
- * "http://host/" NULL
- * "file://host/dir/file" "dir/file"
- * "ftp://host/" ""
- * "ftp://host//" NULL
- * "ftp://host//dir/file" "/dir/file"
- */
-static int
-parse_url(const char *url, const char *desc, url_t *type,
- char **user, char **pass, char **host, char **port,
- in_port_t *portnum, char **path)
-{
- const char *origurl;
- char *cp, *ep, *thost, *tport;
- size_t len;
-
- if (url == NULL || desc == NULL || type == NULL || user == NULL
- || pass == NULL || host == NULL || port == NULL || portnum == NULL
- || path == NULL)
- errx(1, "parse_url: invoked with NULL argument!");
-
- origurl = url;
- *type = UNKNOWN_URL_T;
- *user = *pass = *host = *port = *path = NULL;
- *portnum = 0;
- tport = NULL;
-
- if (STRNEQUAL(url, HTTP_URL)) {
- url += sizeof(HTTP_URL) - 1;
- *type = HTTP_URL_T;
- *portnum = HTTP_PORT;
- tport = httpport;
- } else if (STRNEQUAL(url, FTP_URL)) {
- url += sizeof(FTP_URL) - 1;
- *type = FTP_URL_T;
- *portnum = FTP_PORT;
- tport = ftpport;
- } else if (STRNEQUAL(url, FILE_URL)) {
- url += sizeof(FILE_URL) - 1;
- *type = FILE_URL_T;
- } else {
- warnx("Invalid %s `%s'", desc, url);
- cleanup_parse_url:
- FREEPTR(*user);
- FREEPTR(*pass);
- FREEPTR(*host);
- FREEPTR(*port);
- FREEPTR(*path);
- return (-1);
- }
-
- if (*url == '\0')
- return (0);
-
- /* find [user[:pass]@]host[:port] */
- ep = strchr(url, '/');
- if (ep == NULL)
- thost = xstrdup(url);
- else {
- len = ep - url;
- thost = (char *)xmalloc(len + 1);
- (void)strlcpy(thost, url, len + 1);
- if (*type == FTP_URL_T) /* skip first / for ftp URLs */
- ep++;
- *path = xstrdup(ep);
- }
-
- cp = strchr(thost, '@'); /* look for user[:pass]@ in URLs */
- if (cp != NULL) {
- if (*type == FTP_URL_T)
- anonftp = 0; /* disable anonftp */
- *user = thost;
- *cp = '\0';
- thost = xstrdup(cp + 1);
- cp = strchr(*user, ':');
- if (cp != NULL) {
- *cp = '\0';
- *pass = xstrdup(cp + 1);
- }
- url_decode(*user);
- if (*pass)
- url_decode(*pass);
- }
-
-#ifdef INET6
- /*
- * Check if thost is an encoded IPv6 address, as per
- * RFC 2732:
- * `[' ipv6-address ']'
- */
- if (*thost == '[') {
- cp = thost + 1;
- if ((ep = strchr(cp, ']')) == NULL ||
- (ep[1] != '\0' && ep[1] != ':')) {
- warnx("Invalid address `%s' in %s `%s'",
- thost, desc, origurl);
- goto cleanup_parse_url;
- }
- len = ep - cp; /* change `[xyz]' -> `xyz' */
- memmove(thost, thost + 1, len);
- thost[len] = '\0';
- if (! isipv6addr(thost)) {
- warnx("Invalid IPv6 address `%s' in %s `%s'",
- thost, desc, origurl);
- goto cleanup_parse_url;
- }
- cp = ep + 1;
- if (*cp == ':')
- cp++;
- else
- cp = NULL;
- } else
-#endif /* INET6 */
- if ((cp = strchr(thost, ':')) != NULL)
- *cp++ = '\0';
- *host = thost;
-
- /* look for [:port] */
- if (cp != NULL) {
- long nport;
-
- nport = parseport(cp, -1);
- if (nport == -1) {
- warnx("Unknown port `%s' in %s `%s'",
- cp, desc, origurl);
- goto cleanup_parse_url;
- }
- *portnum = nport;
- tport = cp;
- }
-
- if (tport != NULL)
- *port = xstrdup(tport);
- if (*path == NULL)
- *path = xstrdup("/");
-
- if (debug)
- fprintf(ttyout,
- "parse_url: user `%s' pass `%s' host %s port %s(%d) "
- "path `%s'\n",
- *user ? *user : "<null>", *pass ? *pass : "<null>",
- *host ? *host : "<null>", *port ? *port : "<null>",
- *portnum ? *portnum : -1, *path ? *path : "<null>");
-
- return (0);
-}
-
-sigjmp_buf httpabort;
-
-/*
- * Retrieve URL, via a proxy if necessary, using HTTP.
- * If proxyenv is set, use that for the proxy, otherwise try ftp_proxy or
- * http_proxy as appropriate.
- * Supports HTTP redirects.
- * Returns 1 on failure, 0 on completed xfer, -1 if ftp connection
- * is still open (e.g, ftp xfer with trailing /)
- */
-static int
-fetch_url(const char *url, const char *proxyenv, char *proxyauth, char *wwwauth)
-{
- struct addrinfo hints, *res, *res0 = NULL;
- int error;
- char hbuf[NI_MAXHOST];
- volatile sigfunc oldintr, oldintp;
- volatile int s;
- struct stat sb;
- int ischunked, isproxy, rval, hcode;
- size_t len;
- static size_t bufsize;
- static char *xferbuf;
- const char *cp, *token;
- char *ep, *buf, *savefile;
- char *auth, *location, *message;
- char *user, *pass, *host, *port, *path, *decodedpath;
- char *puser, *ppass, *useragent;
- off_t hashbytes, rangestart, rangeend, entitylen;
- int (*closefunc)(FILE *);
- FILE *fin, *fout;
- time_t mtime;
- url_t urltype;
- in_port_t portnum;
-
- oldintr = oldintp = NULL;
- closefunc = NULL;
- fin = fout = NULL;
- s = -1;
- buf = savefile = NULL;
- auth = location = message = NULL;
- ischunked = isproxy = hcode = 0;
- rval = 1;
- user = pass = host = path = decodedpath = puser = ppass = NULL;
-
-#ifdef __GNUC__ /* shut up gcc warnings */
- (void)&closefunc;
- (void)&fin;
- (void)&fout;
- (void)&buf;
- (void)&savefile;
- (void)&rval;
- (void)&isproxy;
- (void)&hcode;
- (void)&ischunked;
- (void)&message;
- (void)&location;
- (void)&auth;
- (void)&decodedpath;
-#endif
-
- if (parse_url(url, "URL", &urltype, &user, &pass, &host, &port,
- &portnum, &path) == -1)
- goto cleanup_fetch_url;
-
- if (urltype == FILE_URL_T && ! EMPTYSTRING(host)
- && strcasecmp(host, "localhost") != 0) {
- warnx("No support for non local file URL `%s'", url);
- goto cleanup_fetch_url;
- }
-
- if (EMPTYSTRING(path)) {
- if (urltype == FTP_URL_T) {
- rval = fetch_ftp(url);
- goto cleanup_fetch_url;
- }
- if (urltype != HTTP_URL_T || outfile == NULL) {
- warnx("Invalid URL (no file after host) `%s'", url);
- goto cleanup_fetch_url;
- }
- }
-
- decodedpath = xstrdup(path);
- url_decode(decodedpath);
-
- if (outfile)
- savefile = xstrdup(outfile);
- else {
- cp = strrchr(decodedpath, '/'); /* find savefile */
- if (cp != NULL)
- savefile = xstrdup(cp + 1);
- else
- savefile = xstrdup(decodedpath);
- }
- if (EMPTYSTRING(savefile)) {
- if (urltype == FTP_URL_T) {
- rval = fetch_ftp(url);
- goto cleanup_fetch_url;
- }
- warnx("no file after directory (you must specify an "
- "output file) `%s'", url);
- goto cleanup_fetch_url;
- } else {
- if (debug)
- fprintf(ttyout, "savefile `%s'\n", savefile);
- }
-
- restart_point = 0;
- filesize = -1;
- rangestart = rangeend = entitylen = -1;
- mtime = -1;
- if (restartautofetch) {
- if (strcmp(savefile, "-") != 0 && *savefile != '|' &&
- stat(savefile, &sb) == 0)
- restart_point = sb.st_size;
- }
- if (urltype == FILE_URL_T) { /* file:// URLs */
- direction = "copied";
- fin = fopen(decodedpath, "r");
- if (fin == NULL) {
- warn("Cannot open file `%s'", decodedpath);
- goto cleanup_fetch_url;
- }
- if (fstat(fileno(fin), &sb) == 0) {
- mtime = sb.st_mtime;
- filesize = sb.st_size;
- }
- if (restart_point) {
- if (lseek(fileno(fin), restart_point, SEEK_SET) < 0) {
- warn("Can't lseek to restart `%s'",
- decodedpath);
- goto cleanup_fetch_url;
- }
- }
- if (verbose) {
- fprintf(ttyout, "Copying %s", decodedpath);
- if (restart_point)
- fprintf(ttyout, " (restarting at " LLF ")",
- (LLT)restart_point);
- fputs("\n", ttyout);
- }
- } else { /* ftp:// or http:// URLs */
- char *leading;
- int hasleading;
-
- if (proxyenv == NULL) {
- if (urltype == HTTP_URL_T)
- proxyenv = getoptionvalue("http_proxy");
- else if (urltype == FTP_URL_T)
- proxyenv = getoptionvalue("ftp_proxy");
- }
- direction = "retrieved";
- if (! EMPTYSTRING(proxyenv)) { /* use proxy */
- url_t purltype;
- char *phost, *ppath;
- char *pport, *no_proxy;
-
- isproxy = 1;
-
- /* check URL against list of no_proxied sites */
- no_proxy = getoptionvalue("no_proxy");
- if (! EMPTYSTRING(no_proxy)) {
- char *np, *np_copy;
- long np_port;
- size_t hlen, plen;
-
- np_copy = xstrdup(no_proxy);
- hlen = strlen(host);
- while ((cp = strsep(&np_copy, " ,")) != NULL) {
- if (*cp == '\0')
- continue;
- if ((np = strrchr(cp, ':')) != NULL) {
- *np = '\0';
- np_port =
- strtol(np + 1, &ep, 10);
- if (*ep != '\0')
- continue;
- if (np_port != portnum)
- continue;
- }
- plen = strlen(cp);
- if (hlen < plen)
- continue;
- if (strncasecmp(host + hlen - plen,
- cp, plen) == 0) {
- isproxy = 0;
- break;
- }
- }
- FREEPTR(np_copy);
- if (isproxy == 0 && urltype == FTP_URL_T) {
- rval = fetch_ftp(url);
- goto cleanup_fetch_url;
- }
- }
-
- if (isproxy) {
- if (parse_url(proxyenv, "proxy URL", &purltype,
- &puser, &ppass, &phost, &pport, &portnum,
- &ppath) == -1)
- goto cleanup_fetch_url;
-
- if ((purltype != HTTP_URL_T
- && purltype != FTP_URL_T) ||
- EMPTYSTRING(phost) ||
- (! EMPTYSTRING(ppath)
- && strcmp(ppath, "/") != 0)) {
- warnx("Malformed proxy URL `%s'",
- proxyenv);
- FREEPTR(phost);
- FREEPTR(pport);
- FREEPTR(ppath);
- goto cleanup_fetch_url;
- }
- if (isipv6addr(host) &&
- strchr(host, '%') != NULL) {
- warnx(
-"Scoped address notation `%s' disallowed via web proxy",
- host);
- FREEPTR(phost);
- FREEPTR(pport);
- FREEPTR(ppath);
- goto cleanup_fetch_url;
- }
-
- FREEPTR(host);
- host = phost;
- FREEPTR(port);
- port = pport;
- FREEPTR(path);
- path = xstrdup(url);
- FREEPTR(ppath);
- }
- } /* ! EMPTYSTRING(proxyenv) */
-
- memset(&hints, 0, sizeof(hints));
- hints.ai_flags = 0;
- hints.ai_family = family;
- hints.ai_socktype = SOCK_STREAM;
- hints.ai_protocol = 0;
- error = getaddrinfo(host, NULL, &hints, &res0);
- if (error) {
- warnx("%s", gai_strerror(error));
- goto cleanup_fetch_url;
- }
- if (res0->ai_canonname)
- host = res0->ai_canonname;
-
- s = -1;
- for (res = res0; res; res = res->ai_next) {
- /*
- * see comment in hookup()
- */
- ai_unmapped(res);
- if (getnameinfo(res->ai_addr, res->ai_addrlen,
- hbuf, sizeof(hbuf), NULL, 0, NI_NUMERICHOST) != 0)
- strlcpy(hbuf, "invalid", sizeof(hbuf));
-
- if (verbose && res != res0)
- fprintf(ttyout, "Trying %s...\n", hbuf);
-
- ((struct sockaddr_in *)res->ai_addr)->sin_port =
- htons(portnum);
- s = socket(res->ai_family, SOCK_STREAM,
- res->ai_protocol);
- if (s < 0) {
- warn("Can't create socket");
- continue;
- }
-
- if (xconnect(s, res->ai_addr, res->ai_addrlen) < 0) {
- warn("Connect to address `%s'", hbuf);
- close(s);
- s = -1;
- continue;
- }
-
- /* success */
- break;
- }
-
- if (s < 0) {
- warn("Can't connect to %s", host);
- goto cleanup_fetch_url;
- }
-
- fin = fdopen(s, "r+");
- /*
- * Construct and send the request.
- */
- if (verbose)
- fprintf(ttyout, "Requesting %s\n", url);
- leading = " (";
- hasleading = 0;
- if (isproxy) {
- if (verbose) {
- fprintf(ttyout, "%svia %s:%s", leading,
- host, port);
- leading = ", ";
- hasleading++;
- }
- fprintf(fin, "GET %s HTTP/1.0\r\n", path);
- if (flushcache)
- fprintf(fin, "Pragma: no-cache\r\n");
- } else {
- fprintf(fin, "GET %s HTTP/1.1\r\n", path);
- if (strchr(host, ':')) {
- char *h, *p;
-
- /*
- * strip off IPv6 scope identifier, since it is
- * local to the node
- */
- h = xstrdup(host);
- if (isipv6addr(h) &&
- (p = strchr(h, '%')) != NULL) {
- *p = '\0';
- }
- fprintf(fin, "Host: [%s]", h);
- free(h);
- } else
- fprintf(fin, "Host: %s", host);
- if (portnum != HTTP_PORT)
- fprintf(fin, ":%u", portnum);
- fprintf(fin, "\r\n");
- fprintf(fin, "Accept: */*\r\n");
- fprintf(fin, "Connection: close\r\n");
- if (restart_point) {
- fputs(leading, ttyout);
- fprintf(fin, "Range: bytes=" LLF "-\r\n",
- (LLT)restart_point);
- fprintf(ttyout, "restarting at " LLF,
- (LLT)restart_point);
- leading = ", ";
- hasleading++;
- }
- if (flushcache)
- fprintf(fin, "Cache-Control: no-cache\r\n");
- }
- if ((useragent=getenv("FTPUSERAGENT")) != NULL) {
- fprintf(fin, "User-Agent: %s\r\n", useragent);
- } else {
- fprintf(fin, "User-Agent: %s/%s\r\n",
- FTP_PRODUCT, FTP_VERSION);
- }
- if (wwwauth) {
- if (verbose) {
- fprintf(ttyout, "%swith authorization",
- leading);
- leading = ", ";
- hasleading++;
- }
- fprintf(fin, "Authorization: %s\r\n", wwwauth);
- }
- if (proxyauth) {
- if (verbose) {
- fprintf(ttyout,
- "%swith proxy authorization", leading);
- leading = ", ";
- hasleading++;
- }
- fprintf(fin, "Proxy-Authorization: %s\r\n", proxyauth);
- }
- if (verbose && hasleading)
- fputs(")\n", ttyout);
- fprintf(fin, "\r\n");
- if (fflush(fin) == EOF) {
- warn("Writing HTTP request");
- goto cleanup_fetch_url;
- }
-
- /* Read the response */
- if ((buf = fparseln(fin, &len, NULL, "\0\0\0", 0)) == NULL) {
- warn("Receiving HTTP reply");
- goto cleanup_fetch_url;
- }
- while (len > 0 && (ISLWS(buf[len-1])))
- buf[--len] = '\0';
- if (debug)
- fprintf(ttyout, "received `%s'\n", buf);
-
- /* Determine HTTP response code */
- cp = strchr(buf, ' ');
- if (cp == NULL)
- goto improper;
- else
- cp++;
- hcode = strtol(cp, &ep, 10);
- if (*ep != '\0' && !isspace((unsigned char)*ep))
- goto improper;
- message = xstrdup(cp);
-
- /* Read the rest of the header. */
- while (1) {
- FREEPTR(buf);
- if ((buf = fparseln(fin, &len, NULL, "\0\0\0", 0))
- == NULL) {
- warn("Receiving HTTP reply");
- goto cleanup_fetch_url;
- }
- while (len > 0 && (ISLWS(buf[len-1])))
- buf[--len] = '\0';
- if (len == 0)
- break;
- if (debug)
- fprintf(ttyout, "received `%s'\n", buf);
-
- /*
- * Look for some headers
- */
-
- cp = buf;
-
- if (match_token(&cp, "Content-Length:")) {
- filesize = STRTOLL(cp, &ep, 10);
- if (filesize < 0 || *ep != '\0')
- goto improper;
- if (debug)
- fprintf(ttyout,
- "parsed len as: " LLF "\n",
- (LLT)filesize);
-
- } else if (match_token(&cp, "Content-Range:")) {
- if (! match_token(&cp, "bytes"))
- goto improper;
-
- if (*cp == '*')
- cp++;
- else {
- rangestart = STRTOLL(cp, &ep, 10);
- if (rangestart < 0 || *ep != '-')
- goto improper;
- cp = ep + 1;
- rangeend = STRTOLL(cp, &ep, 10);
- if (rangeend < 0 || rangeend < rangestart)
- goto improper;
- cp = ep;
- }
- if (*cp != '/')
- goto improper;
- cp++;
- if (*cp == '*')
- cp++;
- else {
- entitylen = STRTOLL(cp, &ep, 10);
- if (entitylen < 0)
- goto improper;
- cp = ep;
- }
- if (*cp != '\0')
- goto improper;
-
- if (debug) {
- fprintf(ttyout, "parsed range as: ");
- if (rangestart == -1)
- fprintf(ttyout, "*");
- else
- fprintf(ttyout, LLF "-" LLF,
- (LLT)rangestart,
- (LLT)rangeend);
- fprintf(ttyout, "/" LLF "\n", (LLT)entitylen);
- }
- if (! restart_point) {
- warnx(
- "Received unexpected Content-Range header");
- goto cleanup_fetch_url;
- }
-
- } else if (match_token(&cp, "Last-Modified:")) {
- struct tm parsed;
- char *t;
-
- /* RFC 1123 */
- if ((t = strptime(cp,
- "%a, %d %b %Y %H:%M:%S GMT",
- &parsed))
- /* RFC 850 */
- || (t = strptime(cp,
- "%a, %d-%b-%y %H:%M:%S GMT",
- &parsed))
- /* asctime */
- || (t = strptime(cp,
- "%a, %b %d %H:%M:%S %Y",
- &parsed))) {
- parsed.tm_isdst = -1;
- if (*t == '\0')
- mtime = timegm(&parsed);
- if (debug && mtime != -1) {
- fprintf(ttyout,
- "parsed date as: %s",
- ctime(&mtime));
- }
- }
-
- } else if (match_token(&cp, "Location:")) {
- location = xstrdup(cp);
- if (debug)
- fprintf(ttyout,
- "parsed location as `%s'\n", cp);
-
- } else if (match_token(&cp, "Transfer-Encoding:")) {
- if (match_token(&cp, "binary")) {
- warnx(
- "Bogus transfer encoding - `binary' (fetching anyway)");
- continue;
- }
- if (! (token = match_token(&cp, "chunked"))) {
- warnx(
- "Unsupported transfer encoding - `%s'",
- token);
- goto cleanup_fetch_url;
- }
- ischunked++;
- if (debug)
- fprintf(ttyout,
- "using chunked encoding\n");
-
- } else if (match_token(&cp, "Proxy-Authenticate:")
- || match_token(&cp, "WWW-Authenticate:")) {
- if (! (token = match_token(&cp, "Basic"))) {
- if (debug)
- fprintf(ttyout,
- "skipping unknown auth scheme `%s'\n",
- token);
- continue;
- }
- FREEPTR(auth);
- auth = xstrdup(token);
- if (debug)
- fprintf(ttyout,
- "parsed auth as `%s'\n", cp);
- }
-
- }
- /* finished parsing header */
- FREEPTR(buf);
-
- switch (hcode) {
- case 200:
- break;
- case 206:
- if (! restart_point) {
- warnx("Not expecting partial content header");
- goto cleanup_fetch_url;
- }
- break;
- case 300:
- case 301:
- case 302:
- case 303:
- case 305:
- if (EMPTYSTRING(location)) {
- warnx(
- "No redirection Location provided by server");
- goto cleanup_fetch_url;
- }
- if (redirect_loop++ > 5) {
- warnx("Too many redirections requested");
- goto cleanup_fetch_url;
- }
- if (hcode == 305) {
- if (verbose)
- fprintf(ttyout, "Redirected via %s\n",
- location);
- rval = fetch_url(url, location,
- proxyauth, wwwauth);
- } else {
- if (verbose)
- fprintf(ttyout, "Redirected to %s\n",
- location);
- rval = go_fetch(location);
- }
- goto cleanup_fetch_url;
-#ifndef NO_AUTH
- case 401:
- case 407:
- {
- char **authp;
- char *auser, *apass;
-
- if (hcode == 401) {
- authp = &wwwauth;
- auser = user;
- apass = pass;
- } else {
- authp = &proxyauth;
- auser = puser;
- apass = ppass;
- }
- if (verbose || *authp == NULL ||
- auser == NULL || apass == NULL)
- fprintf(ttyout, "%s\n", message);
- if (EMPTYSTRING(auth)) {
- warnx(
- "No authentication challenge provided by server");
- goto cleanup_fetch_url;
- }
- if (*authp != NULL) {
- char reply[10];
-
- fprintf(ttyout,
- "Authorization failed. Retry (y/n)? ");
- if (fgets(reply, sizeof(reply), stdin)
- == NULL) {
- clearerr(stdin);
- goto cleanup_fetch_url;
- }
- if (tolower((unsigned char)reply[0]) != 'y')
- goto cleanup_fetch_url;
- auser = NULL;
- apass = NULL;
- }
- if (auth_url(auth, authp, auser, apass) == 0) {
- rval = fetch_url(url, proxyenv,
- proxyauth, wwwauth);
- memset(*authp, 0, strlen(*authp));
- FREEPTR(*authp);
- }
- goto cleanup_fetch_url;
- }
-#endif
- default:
- if (message)
- warnx("Error retrieving file - `%s'", message);
- else
- warnx("Unknown error retrieving file");
- goto cleanup_fetch_url;
- }
- } /* end of ftp:// or http:// specific setup */
-
- /* Open the output file. */
- if (strcmp(savefile, "-") == 0) {
- fout = stdout;
- } else if (*savefile == '|') {
- oldintp = xsignal(SIGPIPE, SIG_IGN);
- fout = popen(savefile + 1, "w");
- if (fout == NULL) {
- warn("Can't run `%s'", savefile + 1);
- goto cleanup_fetch_url;
- }
- closefunc = pclose;
- } else {
- if ((rangeend != -1 && rangeend <= restart_point) ||
- (rangestart == -1 && filesize != -1 && filesize <= restart_point)) {
- /* already done */
- if (verbose)
- fprintf(ttyout, "already done\n");
- rval = 0;
- goto cleanup_fetch_url;
- }
- if (restart_point && rangestart != -1) {
- if (entitylen != -1)
- filesize = entitylen;
- if (rangestart != restart_point) {
- warnx(
- "Size of `%s' differs from save file `%s'",
- url, savefile);
- goto cleanup_fetch_url;
- }
- fout = fopen(savefile, "a");
- } else
- fout = fopen(savefile, "w");
- if (fout == NULL) {
- warn("Can't open `%s'", savefile);
- goto cleanup_fetch_url;
- }
- closefunc = fclose;
- }
-
- /* Trap signals */
- if (sigsetjmp(httpabort, 1))
- goto cleanup_fetch_url;
- (void)xsignal(SIGQUIT, psummary);
- oldintr = xsignal(SIGINT, aborthttp);
-
- if (rcvbuf_size > bufsize) {
- if (xferbuf)
- (void)free(xferbuf);
- bufsize = rcvbuf_size;
- xferbuf = xmalloc(bufsize);
- }
-
- bytes = 0;
- hashbytes = mark;
- progressmeter(-1);
-
- /* Finally, suck down the file. */
- do {
- long chunksize;
-
- chunksize = 0;
- /* read chunksize */
- if (ischunked) {
- if (fgets(xferbuf, bufsize, fin) == NULL) {
- warnx("Unexpected EOF reading chunksize");
- goto cleanup_fetch_url;
- }
- chunksize = strtol(xferbuf, &ep, 16);
-
- /*
- * XXX: Work around bug in Apache 1.3.9 and
- * 1.3.11, which incorrectly put trailing
- * space after the chunksize.
- */
- while (*ep == ' ')
- ep++;
-
- if (strcmp(ep, "\r\n") != 0) {
- warnx("Unexpected data following chunksize");
- goto cleanup_fetch_url;
- }
- if (debug)
- fprintf(ttyout, "got chunksize of " LLF "\n",
- (LLT)chunksize);
- if (chunksize == 0)
- break;
- }
- /* transfer file or chunk */
- while (1) {
- struct timeval then, now, td;
- off_t bufrem;
-
- if (rate_get)
- (void)gettimeofday(&then, NULL);
- bufrem = rate_get ? rate_get : bufsize;
- if (ischunked)
- bufrem = MIN(chunksize, bufrem);
- while (bufrem > 0) {
- len = fread(xferbuf, sizeof(char),
- MIN(bufsize, bufrem), fin);
- if (len <= 0)
- goto chunkdone;
- bytes += len;
- bufrem -= len;
- if (fwrite(xferbuf, sizeof(char), len, fout)
- != len) {
- warn("Writing `%s'", savefile);
- goto cleanup_fetch_url;
- }
- if (hash && !progress) {
- while (bytes >= hashbytes) {
- (void)putc('#', ttyout);
- hashbytes += mark;
- }
- (void)fflush(ttyout);
- }
- if (ischunked) {
- chunksize -= len;
- if (chunksize <= 0)
- break;
- }
- }
- if (rate_get) {
- while (1) {
- (void)gettimeofday(&now, NULL);
- timersub(&now, &then, &td);
- if (td.tv_sec > 0)
- break;
- usleep(1000000 - td.tv_usec);
- }
- }
- if (ischunked && chunksize <= 0)
- break;
- }
- /* read CRLF after chunk*/
- chunkdone:
- if (ischunked) {
- if (fgets(xferbuf, bufsize, fin) == NULL)
- break;
- if (strcmp(xferbuf, "\r\n") != 0) {
- warnx("Unexpected data following chunk");
- goto cleanup_fetch_url;
- }
- }
- } while (ischunked);
- if (hash && !progress && bytes > 0) {
- if (bytes < mark)
- (void)putc('#', ttyout);
- (void)putc('\n', ttyout);
- }
- if (ferror(fin)) {
- warn("Reading file");
- goto cleanup_fetch_url;
- }
- progressmeter(1);
- (void)fflush(fout);
- if (closefunc == fclose && mtime != -1) {
- struct timeval tval[2];
-
- (void)gettimeofday(&tval[0], NULL);
- tval[1].tv_sec = mtime;
- tval[1].tv_usec = 0;
- (*closefunc)(fout);
- fout = NULL;
-
- if (utimes(savefile, tval) == -1) {
- fprintf(ttyout,
- "Can't change modification time to %s",
- asctime(localtime(&mtime)));
- }
- }
- if (bytes > 0)
- ptransfer(0);
- bytes = 0;
-
- rval = 0;
- goto cleanup_fetch_url;
-
- improper:
- warnx("Improper response from `%s'", host);
-
- cleanup_fetch_url:
- if (oldintr)
- (void)xsignal(SIGINT, oldintr);
- if (oldintp)
- (void)xsignal(SIGPIPE, oldintp);
- if (fin != NULL)
- fclose(fin);
- else if (s != -1)
- close(s);
- if (closefunc != NULL && fout != NULL)
- (*closefunc)(fout);
- if (res0)
- freeaddrinfo(res0);
- FREEPTR(savefile);
- FREEPTR(user);
- FREEPTR(pass);
- FREEPTR(host);
- FREEPTR(port);
- FREEPTR(path);
- FREEPTR(decodedpath);
- FREEPTR(puser);
- FREEPTR(ppass);
- FREEPTR(buf);
- FREEPTR(auth);
- FREEPTR(location);
- FREEPTR(message);
- return (rval);
-}
-
-/*
- * Abort a HTTP retrieval
- */
-void
-aborthttp(int notused)
-{
- char msgbuf[100];
- int len;
-
- sigint_raised = 1;
- alarmtimer(0);
- len = strlcpy(msgbuf, "\nHTTP fetch aborted.\n", sizeof(msgbuf));
- write(fileno(ttyout), msgbuf, len);
- siglongjmp(httpabort, 1);
-}
-
-/*
- * Retrieve ftp URL or classic ftp argument using FTP.
- * Returns 1 on failure, 0 on completed xfer, -1 if ftp connection
- * is still open (e.g, ftp xfer with trailing /)
- */
-static int
-fetch_ftp(const char *url)
-{
- char *cp, *xargv[5], rempath[MAXPATHLEN];
- char *host, *path, *dir, *file, *user, *pass;
- char *port;
- int dirhasglob, filehasglob, oautologin, rval, type, xargc;
- in_port_t portnum;
- url_t urltype;
-
- host = path = dir = file = user = pass = NULL;
- port = NULL;
- rval = 1;
- type = TYPE_I;
-
- if (STRNEQUAL(url, FTP_URL)) {
- if ((parse_url(url, "URL", &urltype, &user, &pass,
- &host, &port, &portnum, &path) == -1) ||
- (user != NULL && *user == '\0') ||
- EMPTYSTRING(host)) {
- warnx("Invalid URL `%s'", url);
- goto cleanup_fetch_ftp;
- }
- /*
- * Note: Don't url_decode(path) here. We need to keep the
- * distinction between "/" and "%2F" until later.
- */
-
- /* check for trailing ';type=[aid]' */
- if (! EMPTYSTRING(path) && (cp = strrchr(path, ';')) != NULL) {
- if (strcasecmp(cp, ";type=a") == 0)
- type = TYPE_A;
- else if (strcasecmp(cp, ";type=i") == 0)
- type = TYPE_I;
- else if (strcasecmp(cp, ";type=d") == 0) {
- warnx(
- "Directory listing via a URL is not supported");
- goto cleanup_fetch_ftp;
- } else {
- warnx("Invalid suffix `%s' in URL `%s'", cp,
- url);
- goto cleanup_fetch_ftp;
- }
- *cp = 0;
- }
- } else { /* classic style `[user@]host:[file]' */
- urltype = CLASSIC_URL_T;
- host = xstrdup(url);
- cp = strchr(host, '@');
- if (cp != NULL) {
- *cp = '\0';
- user = host;
- anonftp = 0; /* disable anonftp */
- host = xstrdup(cp + 1);
- }
- cp = strchr(host, ':');
- if (cp != NULL) {
- *cp = '\0';
- path = xstrdup(cp + 1);
- }
- }
- if (EMPTYSTRING(host))
- goto cleanup_fetch_ftp;
-
- /* Extract the file and (if present) directory name. */
- dir = path;
- if (! EMPTYSTRING(dir)) {
- /*
- * If we are dealing with classic `[user@]host:[path]' syntax,
- * then a path of the form `/file' (resulting from input of the
- * form `host:/file') means that we should do "CWD /" before
- * retrieving the file. So we set dir="/" and file="file".
- *
- * But if we are dealing with URLs like `ftp://host/path' then
- * a path of the form `/file' (resulting from a URL of the form
- * `ftp://host//file') means that we should do `CWD ' (with an
- * empty argument) before retrieving the file. So we set
- * dir="" and file="file".
- *
- * If the path does not contain / at all, we set dir=NULL.
- * (We get a path without any slashes if we are dealing with
- * classic `[user@]host:[file]' or URL `ftp://host/file'.)
- *
- * In all other cases, we set dir to a string that does not
- * include the final '/' that separates the dir part from the
- * file part of the path. (This will be the empty string if
- * and only if we are dealing with a path of the form `/file'
- * resulting from an URL of the form `ftp://host//file'.)
- */
- cp = strrchr(dir, '/');
- if (cp == dir && urltype == CLASSIC_URL_T) {
- file = cp + 1;
- dir = "/";
- } else if (cp != NULL) {
- *cp++ = '\0';
- file = cp;
- } else {
- file = dir;
- dir = NULL;
- }
- } else
- dir = NULL;
- if (urltype == FTP_URL_T && file != NULL) {
- url_decode(file);
- /* but still don't url_decode(dir) */
- }
- if (debug)
- fprintf(ttyout,
- "fetch_ftp: user `%s' pass `%s' host %s port %s "
- "path `%s' dir `%s' file `%s'\n",
- user ? user : "<null>", pass ? pass : "<null>",
- host ? host : "<null>", port ? port : "<null>",
- path ? path : "<null>",
- dir ? dir : "<null>", file ? file : "<null>");
-
- dirhasglob = filehasglob = 0;
- if (doglob && urltype == CLASSIC_URL_T) {
- if (! EMPTYSTRING(dir) && strpbrk(dir, "*?[]{}") != NULL)
- dirhasglob = 1;
- if (! EMPTYSTRING(file) && strpbrk(file, "*?[]{}") != NULL)
- filehasglob = 1;
- }
-
- /* Set up the connection */
- if (connected)
- disconnect(0, NULL);
- xargv[0] = (char *)getprogname(); /* XXX discards const */
- xargv[1] = host;
- xargv[2] = NULL;
- xargc = 2;
- if (port) {
- xargv[2] = port;
- xargv[3] = NULL;
- xargc = 3;
- }
- oautologin = autologin;
- /* don't autologin in setpeer(), use ftp_login() below */
- autologin = 0;
- setpeer(xargc, xargv);
- autologin = oautologin;
- if ((connected == 0) ||
- (connected == 1 && !ftp_login(host, user, pass))) {
- warnx("Can't connect or login to host `%s'", host);
- goto cleanup_fetch_ftp;
- }
-
- switch (type) {
- case TYPE_A:
- setascii(1, xargv);
- break;
- case TYPE_I:
- setbinary(1, xargv);
- break;
- default:
- errx(1, "fetch_ftp: unknown transfer type %d", type);
- }
-
- /*
- * Change directories, if necessary.
- *
- * Note: don't use EMPTYSTRING(dir) below, because
- * dir=="" means something different from dir==NULL.
- */
- if (dir != NULL && !dirhasglob) {
- char *nextpart;
-
- /*
- * If we are dealing with a classic `[user@]host:[path]'
- * (urltype is CLASSIC_URL_T) then we have a raw directory
- * name (not encoded in any way) and we can change
- * directories in one step.
- *
- * If we are dealing with an `ftp://host/path' URL
- * (urltype is FTP_URL_T), then RFC 1738 says we need to
- * send a separate CWD command for each unescaped "/"
- * in the path, and we have to interpret %hex escaping
- * *after* we find the slashes. It's possible to get
- * empty components here, (from multiple adjacent
- * slashes in the path) and RFC 1738 says that we should
- * still do `CWD ' (with a null argument) in such cases.
- *
- * Many ftp servers don't support `CWD ', so if there's an
- * error performing that command, bail out with a descriptive
- * message.
- *
- * Examples:
- *
- * host: dir="", urltype=CLASSIC_URL_T
- * logged in (to default directory)
- * host:file dir=NULL, urltype=CLASSIC_URL_T
- * "RETR file"
- * host:dir/ dir="dir", urltype=CLASSIC_URL_T
- * "CWD dir", logged in
- * ftp://host/ dir="", urltype=FTP_URL_T
- * logged in (to default directory)
- * ftp://host/dir/ dir="dir", urltype=FTP_URL_T
- * "CWD dir", logged in
- * ftp://host/file dir=NULL, urltype=FTP_URL_T
- * "RETR file"
- * ftp://host//file dir="", urltype=FTP_URL_T
- * "CWD ", "RETR file"
- * host:/file dir="/", urltype=CLASSIC_URL_T
- * "CWD /", "RETR file"
- * ftp://host///file dir="/", urltype=FTP_URL_T
- * "CWD ", "CWD ", "RETR file"
- * ftp://host/%2F/file dir="%2F", urltype=FTP_URL_T
- * "CWD /", "RETR file"
- * ftp://host/foo/file dir="foo", urltype=FTP_URL_T
- * "CWD foo", "RETR file"
- * ftp://host/foo/bar/file dir="foo/bar"
- * "CWD foo", "CWD bar", "RETR file"
- * ftp://host//foo/bar/file dir="/foo/bar"
- * "CWD ", "CWD foo", "CWD bar", "RETR file"
- * ftp://host/foo//bar/file dir="foo//bar"
- * "CWD foo", "CWD ", "CWD bar", "RETR file"
- * ftp://host/%2F/foo/bar/file dir="%2F/foo/bar"
- * "CWD /", "CWD foo", "CWD bar", "RETR file"
- * ftp://host/%2Ffoo/bar/file dir="%2Ffoo/bar"
- * "CWD /foo", "CWD bar", "RETR file"
- * ftp://host/%2Ffoo%2Fbar/file dir="%2Ffoo%2Fbar"
- * "CWD /foo/bar", "RETR file"
- * ftp://host/%2Ffoo%2Fbar%2Ffile dir=NULL
- * "RETR /foo/bar/file"
- *
- * Note that we don't need `dir' after this point.
- */
- do {
- if (urltype == FTP_URL_T) {
- nextpart = strchr(dir, '/');
- if (nextpart) {
- *nextpart = '\0';
- nextpart++;
- }
- url_decode(dir);
- } else
- nextpart = NULL;
- if (debug)
- fprintf(ttyout, "dir `%s', nextpart `%s'\n",
- dir ? dir : "<null>",
- nextpart ? nextpart : "<null>");
- if (urltype == FTP_URL_T || *dir != '\0') {
- xargv[0] = "cd";
- xargv[1] = dir;
- xargv[2] = NULL;
- dirchange = 0;
- cd(2, xargv);
- if (! dirchange) {
- if (*dir == '\0' && code == 500)
- fprintf(stderr,
-"\n"
-"ftp: The `CWD ' command (without a directory), which is required by\n"
-" RFC 1738 to support the empty directory in the URL pathname (`//'),\n"
-" conflicts with the server's conformance to RFC 959.\n"
-" Try the same URL without the `//' in the URL pathname.\n"
-"\n");
- goto cleanup_fetch_ftp;
- }
- }
- dir = nextpart;
- } while (dir != NULL);
- }
-
- if (EMPTYSTRING(file)) {
- rval = -1;
- goto cleanup_fetch_ftp;
- }
-
- if (dirhasglob) {
- (void)strlcpy(rempath, dir, sizeof(rempath));
- (void)strlcat(rempath, "/", sizeof(rempath));
- (void)strlcat(rempath, file, sizeof(rempath));
- file = rempath;
- }
-
- /* Fetch the file(s). */
- xargc = 2;
- xargv[0] = "get";
- xargv[1] = file;
- xargv[2] = NULL;
- if (dirhasglob || filehasglob) {
- int ointeractive;
-
- ointeractive = interactive;
- interactive = 0;
- if (restartautofetch)
- xargv[0] = "mreget";
- else
- xargv[0] = "mget";
- mget(xargc, xargv);
- interactive = ointeractive;
- } else {
- if (outfile == NULL) {
- cp = strrchr(file, '/'); /* find savefile */
- if (cp != NULL)
- outfile = cp + 1;
- else
- outfile = file;
- }
- xargv[2] = (char *)outfile;
- xargv[3] = NULL;
- xargc++;
- if (restartautofetch)
- reget(xargc, xargv);
- else
- get(xargc, xargv);
- }
-
- if ((code / 100) == COMPLETE)
- rval = 0;
-
- cleanup_fetch_ftp:
- FREEPTR(host);
- FREEPTR(path);
- FREEPTR(user);
- FREEPTR(pass);
- return (rval);
-}
-
-/*
- * Retrieve the given file to outfile.
- * Supports arguments of the form:
- * "host:path", "ftp://host/path" if $ftpproxy, call fetch_url() else
- * call fetch_ftp()
- * "http://host/path" call fetch_url() to use HTTP
- * "file:///path" call fetch_url() to copy
- * "about:..." print a message
- *
- * Returns 1 on failure, 0 on completed xfer, -1 if ftp connection
- * is still open (e.g, ftp xfer with trailing /)
- */
-static int
-go_fetch(const char *url)
-{
- char *proxy;
-
-#ifndef NO_ABOUT
- /*
- * Check for about:*
- */
- if (STRNEQUAL(url, ABOUT_URL)) {
- url += sizeof(ABOUT_URL) -1;
- if (strcasecmp(url, "ftp") == 0 ||
- strcasecmp(url, "tnftp") == 0) {
- fputs(
-"This version of ftp has been enhanced by Luke Mewburn <lukem@NetBSD.org>\n"
-"for the NetBSD project. Execute `man ftp' for more details.\n", ttyout);
- } else if (strcasecmp(url, "lukem") == 0) {
- fputs(
-"Luke Mewburn is the author of most of the enhancements in this ftp client.\n"
-"Please email feedback to <lukem@NetBSD.org>.\n", ttyout);
- } else if (strcasecmp(url, "netbsd") == 0) {
- fputs(
-"NetBSD is a freely available and redistributable UNIX-like operating system.\n"
-"For more information, see http://www.NetBSD.org/\n", ttyout);
- } else if (strcasecmp(url, "version") == 0) {
- fprintf(ttyout, "Version: %s %s%s\n",
- FTP_PRODUCT, FTP_VERSION,
-#ifdef INET6
- ""
-#else
- " (-IPv6)"
-#endif
- );
- } else {
- fprintf(ttyout, "`%s' is an interesting topic.\n", url);
- }
- fputs("\n", ttyout);
- return (0);
- }
-#endif
-
- /*
- * Check for file:// and http:// URLs.
- */
- if (STRNEQUAL(url, HTTP_URL) || STRNEQUAL(url, FILE_URL))
- return (fetch_url(url, NULL, NULL, NULL));
-
- /*
- * Try FTP URL-style and host:file arguments next.
- * If ftpproxy is set with an FTP URL, use fetch_url()
- * Othewise, use fetch_ftp().
- */
- proxy = getoptionvalue("ftp_proxy");
- if (!EMPTYSTRING(proxy) && STRNEQUAL(url, FTP_URL))
- return (fetch_url(url, NULL, NULL, NULL));
-
- return (fetch_ftp(url));
-}
-
-/*
- * Retrieve multiple files from the command line,
- * calling go_fetch() for each file.
- *
- * If an ftp path has a trailing "/", the path will be cd-ed into and
- * the connection remains open, and the function will return -1
- * (to indicate the connection is alive).
- * If an error occurs the return value will be the offset+1 in
- * argv[] of the file that caused a problem (i.e, argv[x]
- * returns x+1)
- * Otherwise, 0 is returned if all files retrieved successfully.
- */
-int
-auto_fetch(int argc, char *argv[])
-{
- volatile int argpos;
- int rval;
-
- argpos = 0;
-
- if (sigsetjmp(toplevel, 1)) {
- if (connected)
- disconnect(0, NULL);
- if (rval > 0)
- rval = argpos + 1;
- return (rval);
- }
- (void)xsignal(SIGINT, intr);
- (void)xsignal(SIGPIPE, lostpeer);
-
- /*
- * Loop through as long as there's files to fetch.
- */
- for (rval = 0; (rval == 0) && (argpos < argc); argpos++) {
- if (strchr(argv[argpos], ':') == NULL)
- break;
- redirect_loop = 0;
- if (!anonftp)
- anonftp = 2; /* Handle "automatic" transfers. */
- rval = go_fetch(argv[argpos]);
- if (outfile != NULL && strcmp(outfile, "-") != 0
- && outfile[0] != '|')
- outfile = NULL;
- if (rval > 0)
- rval = argpos + 1;
- }
-
- if (connected && rval != -1)
- disconnect(0, NULL);
- return (rval);
-}
-
-
-int
-auto_put(int argc, char **argv, const char *uploadserver)
-{
- char *uargv[4], *path, *pathsep;
- int uargc, rval, len;
-
- uargc = 0;
- uargv[uargc++] = "mput";
- uargv[uargc++] = argv[0];
- uargv[2] = uargv[3] = NULL;
- pathsep = NULL;
- rval = 1;
-
- if (debug)
- fprintf(ttyout, "auto_put: target `%s'\n", uploadserver);
-
- path = xstrdup(uploadserver);
- len = strlen(path);
- if (path[len - 1] != '/' && path[len - 1] != ':') {
- /*
- * make sure we always pass a directory to auto_fetch
- */
- if (argc > 1) { /* more than one file to upload */
- int len;
-
- len = strlen(uploadserver) + 2; /* path + "/" + "\0" */
- free(path);
- path = (char *)xmalloc(len);
- (void)strlcpy(path, uploadserver, len);
- (void)strlcat(path, "/", len);
- } else { /* single file to upload */
- uargv[0] = "put";
- pathsep = strrchr(path, '/');
- if (pathsep == NULL) {
- pathsep = strrchr(path, ':');
- if (pathsep == NULL) {
- warnx("Invalid URL `%s'", path);
- goto cleanup_auto_put;
- }
- pathsep++;
- uargv[2] = xstrdup(pathsep);
- pathsep[0] = '/';
- } else
- uargv[2] = xstrdup(pathsep + 1);
- pathsep[1] = '\0';
- uargc++;
- }
- }
- if (debug)
- fprintf(ttyout, "auto_put: URL `%s' argv[2] `%s'\n",
- path, uargv[2] ? uargv[2] : "<null>");
-
- /* connect and cwd */
- rval = auto_fetch(1, &path);
- free(path);
- if(rval >= 0)
- goto cleanup_auto_put;
-
- /* XXX : is this the best way? */
- if (uargc == 3) {
- uargv[1] = argv[0];
- put(uargc, uargv);
- goto cleanup_auto_put;
- }
-
- for(; argv[0] != NULL; argv++) {
- uargv[1] = argv[0];
- mput(uargc, uargv);
- }
- rval = 0;
-
- cleanup_auto_put:
- FREEPTR(uargv[2]);
- return (rval);
-}