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/*
* The new sysinstall program.
*
* This is probably the last attempt in the `sysinstall' line, the next
* generation being slated to essentially a complete rewrite.
*
* $Id: ftp.c,v 1.35 1998/01/28 04:42:38 jkh Exp $
*
* Copyright (c) 1995
* Jordan Hubbard. All rights reserved.
*
* 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,
* verbatim and that no modifications are made prior to this
* point in the file.
* 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.
*
* THIS SOFTWARE IS PROVIDED BY JORDAN HUBBARD ``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 JORDAN HUBBARD OR HIS PETS 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, LIFE 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 "sysinstall.h"
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <sys/param.h>
#include <sys/wait.h>
#include <netdb.h>
#include <pwd.h>
#include <ftpio.h>
Boolean ftpInitted = FALSE;
static FILE *OpenConn;
int FtpPort;
/* Brings up attached network device, if any - takes FTP device as arg */
static Boolean
netUp(Device *dev)
{
Device *netdev = (Device *)dev->private;
if (netdev)
return netdev->init(netdev);
else
return TRUE; /* No net == happy net */
}
/* Brings down attached network device, if any - takes FTP device as arg */
static void
netDown(Device *dev)
{
Device *netdev = (Device *)dev->private;
if (netdev)
netdev->shutdown(netdev);
}
Boolean
mediaInitFTP(Device *dev)
{
int i, code;
char *cp, *rel, *hostname, *dir;
char *user, *login_name, password[80];
if (ftpInitted)
return TRUE;
if (OpenConn) {
fclose(OpenConn);
OpenConn = NULL;
}
/* If we can't initialize the network, bag it! */
if (!netUp(dev))
return FALSE;
try:
cp = variable_get(VAR_FTP_PATH);
if (!cp) {
if (DITEM_STATUS(mediaSetFTP(NULL)) == DITEM_FAILURE || (cp = variable_get(VAR_FTP_PATH)) == NULL) {
msgConfirm("Unable to get proper FTP path. FTP media not initialized.");
netDown(dev);
return FALSE;
}
}
hostname = variable_get(VAR_FTP_HOST);
dir = variable_get(VAR_FTP_DIR);
if (!hostname || !dir) {
msgConfirm("Missing FTP host or directory specification. FTP media not initialized,");
netDown(dev);
return FALSE;
}
user = variable_get(VAR_FTP_USER);
login_name = (!user || !*user) ? "anonymous" : user;
if (variable_get(VAR_FTP_PASS))
SAFE_STRCPY(password, variable_get(VAR_FTP_PASS));
else if (RunningAsInit)
sprintf(password, "installer@%s", variable_get(VAR_HOSTNAME));
else {
struct passwd *pw;
char *user;
pw = getpwuid(getuid());
user = pw ? pw->pw_name : "ftp";
sprintf(password, "%s@%s", user, variable_get(VAR_HOSTNAME));
}
msgNotify("Logging in to %s@%s..", login_name, hostname);
if ((OpenConn = ftpLogin(hostname, login_name, password, FtpPort, isDebug(), &code)) == NULL) {
msgConfirm("Couldn't open FTP connection to %s:\n %s.", hostname, ftpErrString(code));
goto punt;
}
ftpPassive(OpenConn, !strcmp(variable_get(VAR_FTP_STATE), "passive"));
ftpBinary(OpenConn);
if (dir && *dir != '\0') {
if ((i = ftpChdir(OpenConn, dir)) != 0) {
if (i == 550)
msgConfirm("No such directory ftp://%s/%s\n"
"please check your URL and try again.", hostname, dir);
else
msgConfirm("FTP chdir to ftp://%s/%s returned error status:\n %s.", hostname, dir, ftpErrString(i));
goto punt;
}
}
/* Give it a shot - can't hurt to try and zoom in if we can, unless the release is set to
__RELEASE or "none" which signifies that it's not set */
rel = variable_get(VAR_RELNAME);
if (strcmp(rel, "__RELEASE") && strcmp(rel, "none"))
i = ftpChdir(OpenConn, rel);
else
i = 0;
if (i) {
if (!msgYesNo("Warning: Can't CD to `%s' distribution on this\n"
"FTP server. You may need to visit a different server for\n"
"the release you're trying to fetch or go to the Options\n"
"menu and to set the release name to explicitly match what's\n"
"available on %s (or set to \"none\").\n\n"
"Would you like to select another FTP server?",
rel, hostname)) {
variable_unset(VAR_FTP_PATH);
if (DITEM_STATUS(mediaSetFTP(NULL)) == DITEM_FAILURE)
goto punt;
else
goto try;
}
else
goto punt;
}
ftpInitted = TRUE;
return TRUE;
punt:
ftpInitted = FALSE;
if (OpenConn != NULL) {
fclose(OpenConn);
OpenConn = NULL;
}
netDown(dev);
variable_unset(VAR_FTP_PATH);
return FALSE;
}
FILE *
mediaGetFTP(Device *dev, char *file, Boolean probe)
{
int nretries = 1;
FILE *fp;
char *try, buf[PATH_MAX];
if (!OpenConn) {
msgDebug("No FTP connection open, can't get file %s\n", file);
return NULL;
}
try = file;
while ((fp = ftpGet(OpenConn, try, 0)) == NULL) {
int ftperr = ftpErrno(OpenConn);
/* If a hard fail, try to "bounce" the ftp server to clear it */
if (ftperr != 550) {
if (ftperr != 421) /* Timeout? */
variable_unset(VAR_FTP_PATH);
/* If we can't re-initialize, just forget it */
dev->shutdown(dev);
if (!dev->init(dev)) {
netDown(dev);
if (OpenConn) {
fclose(OpenConn);
OpenConn = NULL;
}
variable_unset(VAR_FTP_PATH);
return NULL;
}
}
else if (probe)
return NULL;
else {
/* Try some alternatives */
switch (nretries++) {
case 1:
sprintf(buf, "releases/%s", file);
try = buf;
break;
case 2:
sprintf(buf, "%s/%s", variable_get(VAR_RELNAME), file);
try = buf;
break;
case 3:
sprintf(buf, "%s/releases/%s", variable_get(VAR_RELNAME), file);
try = buf;
break;
case 4:
try = file;
break;
}
}
}
return fp;
}
void
mediaShutdownFTP(Device *dev)
{
if (!ftpInitted)
return;
if (OpenConn != NULL) {
fclose(OpenConn);
OpenConn = NULL;
}
ftpInitted = FALSE;
}
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