263 lines
7.2 KiB
C
263 lines
7.2 KiB
C
/*
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* The new sysinstall program.
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*
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* This is probably the last attempt in the `sysinstall' line, the next
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* generation being slated to essentially a complete rewrite.
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*
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* $Id: ftp_strat.c,v 1.6.2.25 1995/06/07 09:53:14 jkh Exp $
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*
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* Copyright (c) 1995
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* Jordan Hubbard. All rights reserved.
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* Copyright (c) 1995
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* Gary J Palmer. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer,
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* verbatim and that no modifications are made prior to this
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* point in the file.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Jordan Hubbard
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* for the FreeBSD Project.
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* 4. The name of Jordan Hubbard or the FreeBSD project may not be used to
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* endorse or promote products derived from this software without specific
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* prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY JORDAN HUBBARD ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL JORDAN HUBBARD OR HIS PETS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, LIFE OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#include "sysinstall.h"
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <sys/param.h>
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#include <sys/wait.h>
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#include <netdb.h>
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#include "ftp.h"
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Boolean ftpInitted;
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static FTP_t ftp;
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extern int FtpPort;
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int
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mediaSetFtpUserPass(char *str)
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{
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char *user, *pass;
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dialog_clear();
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if ((user = msgGetInput(getenv(FTP_USER), "Please enter the username you wish to login as")) != NULL)
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variable_set2(FTP_USER, user);
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if ((pass = msgGetInput(getenv(FTP_PASS), "Please enter the password for this user.\nWARNING: This password will echo on the screen!")) != NULL)
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variable_set2(FTP_PASS, pass);
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dialog_clear();
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return 0;
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}
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static Boolean
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get_new_host(Device *dev)
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{
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Boolean i;
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char *oldTitle = MenuMediaFTP.title;
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Device *netDev = dev->private;
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MenuMediaFTP.title = "Connection timed out - please select another site";
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i = mediaSetFTP(NULL);
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MenuMediaFTP.title = oldTitle;
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if (i) {
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char *cp = getenv(FTP_USER);
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if (cp && *cp)
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(void)mediaSetFtpUserPass(NULL);
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netDev->flags |= OPT_LEAVE_NETWORK_UP;
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(*dev->shutdown)(dev);
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i = (*dev->init)(dev);
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netDev->flags &= ~OPT_LEAVE_NETWORK_UP;
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}
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return i;
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}
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static Boolean HasDistsDir;
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Boolean
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mediaInitFTP(Device *dev)
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{
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int i, retries, max_retries = MAX_FTP_RETRIES;
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char *cp, *hostname, *dir;
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char *user, *login_name, password[80], url[BUFSIZ];
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Device *netDevice = (Device *)dev->private;
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if (ftpInitted)
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return TRUE;
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if (!(*netDevice->init)(netDevice))
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return FALSE;
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if ((ftp = FtpInit()) == NULL) {
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msgConfirm("FTP initialisation failed!");
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goto punt;
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}
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if (isDebug())
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msgDebug("Initialized FTP library.\n");
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cp = getenv("ftp");
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if (!cp)
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goto punt;
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if (isDebug())
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msgDebug("Attempting to open connection for: %s\n", cp);
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hostname = getenv(VAR_HOSTNAME);
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if (strncmp("ftp://", cp, 6) != NULL) {
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msgConfirm("Invalid URL: %s\n(A URL must start with `ftp://' here)", cp);
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goto punt;
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}
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strncpy(url, cp, BUFSIZ);
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if (isDebug())
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msgDebug("Using URL `%s'\n", url);
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hostname = url + 6;
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if ((cp = index(hostname, ':')) != NULL) {
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*(cp++) = '\0';
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FtpPort = strtol(cp, 0, 0);
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}
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else
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FtpPort = 21;
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if ((dir = index(cp ? cp : hostname, '/')) != NULL)
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*(dir++) = '\0';
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if (isDebug()) {
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msgDebug("hostname = `%s'\n", hostname);
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msgDebug("dir = `%s'\n", dir ? dir : "/");
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msgDebug("port # = `%d'\n", FtpPort);
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}
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msgNotify("Looking up host %s..", hostname);
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if ((gethostbyname(hostname) == NULL) && (inet_addr(hostname) == INADDR_NONE)) {
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msgConfirm("Cannot resolve hostname `%s'! Are you sure that your\nname server, gateway and network interface are configured?", hostname);
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goto punt;
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}
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user = getenv(FTP_USER);
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if (!user || !*user) {
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snprintf(password, BUFSIZ, "installer@%s", hostname);
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login_name = "anonymous";
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}
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else {
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login_name = user;
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strcpy(password, getenv(FTP_PASS) ? getenv(FTP_PASS) : login_name);
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}
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retries = i = 0;
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if (OptFlags & (OPT_FTP_RESELECT + OPT_FTP_ABORT))
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max_retries = 0;
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retry:
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if (i && ++retries > max_retries) {
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if ((OptFlags & OPT_FTP_ABORT) || !get_new_host(dev))
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return FALSE;
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retries = 0;
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}
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msgNotify("Logging in as %s..", login_name);
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if ((i = FtpOpen(ftp, hostname, login_name, password)) != 0) {
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if (OptFlags & OPT_NO_CONFIRM)
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msgNotify("Couldn't open FTP connection to %s\n", hostname);
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else
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msgConfirm("Couldn't open FTP connection to %s\n", hostname);
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goto retry;
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}
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FtpPassive(ftp, (OptFlags & OPT_FTP_PASSIVE) ? 1 : 0);
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FtpBinary(ftp, 1);
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if (dir && *dir != '\0') {
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msgNotify("CD to distribution in ~ftp/%s", dir);
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if ((i = FtpChdir(ftp, dir)) == -2)
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goto retry;
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}
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if (!FtpChdir(ftp, "dists")) {
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HasDistsDir = TRUE;
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FtpChdir(ftp, ".."); /* Hope this works! :-( */
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}
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else
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HasDistsDir = FALSE;
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if (isDebug())
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msgDebug("leaving mediaInitFTP!\n");
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ftpInitted = TRUE;
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return TRUE;
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punt:
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FtpClose(ftp);
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ftp = NULL;
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(*netDevice->shutdown)(netDevice);
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return FALSE;
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}
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int
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mediaGetFTP(Device *dev, char *file, Attribs *dist_attrs)
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{
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int fd;
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int nretries = 0, max_retries = MAX_FTP_RETRIES;
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Boolean inDists = FALSE;
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if (OptFlags & (OPT_FTP_RESELECT + OPT_FTP_ABORT) || dev->flags & OPT_EXPLORATORY_GET)
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max_retries = 1;
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while ((fd = FtpGet(ftp, file)) < 0) {
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/* If a hard fail, try to "bounce" the ftp server to clear it */
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if (fd == -2 || ++nretries > max_retries) {
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if ((OptFlags & OPT_FTP_ABORT) || (dev->flags & OPT_EXPLORATORY_GET))
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return -1;
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else if (!get_new_host(dev))
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return -2;
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nretries = 0;
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continue;
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}
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if (HasDistsDir) {
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if (!inDists) {
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FtpChdir(ftp, "dists");
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inDists = TRUE;
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}
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else {
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FtpChdir(ftp, "..");
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inDists = FALSE;
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}
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}
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}
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if (inDists)
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FtpChdir(ftp, "..");
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return fd;
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}
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Boolean
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mediaCloseFTP(Device *dev, int fd)
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{
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FtpEOF(ftp);
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if (!close(fd))
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return (TRUE);
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return FALSE;
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}
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void
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mediaShutdownFTP(Device *dev)
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{
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Device *netdev = (Device *)dev->private;
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if (!ftpInitted)
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return;
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if (ftp != NULL) {
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FtpClose(ftp);
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ftp = NULL;
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}
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(*netdev->shutdown)(netdev);
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ftpInitted = FALSE;
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}
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