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curl/tests/sshhelp.pm

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#***************************************************************************
# _ _ ____ _
# Project ___| | | | _ \| |
# / __| | | | |_) | |
# | (__| |_| | _ <| |___
# \___|\___/|_| \_\_____|
#
# Copyright (C) 1998 - 2011, Daniel Stenberg, <daniel@haxx.se>, et al.
#
# This software is licensed as described in the file COPYING, which
# you should have received as part of this distribution. The terms
# are also available at http://curl.haxx.se/docs/copyright.html.
#
# You may opt to use, copy, modify, merge, publish, distribute and/or sell
# copies of the Software, and permit persons to whom the Software is
# furnished to do so, under the terms of the COPYING file.
#
# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
# KIND, either express or implied.
#
#***************************************************************************
package sshhelp;
use strict;
use warnings;
use Exporter;
use File::Spec;
#***************************************************************************
# Global symbols allowed without explicit package name
#
use vars qw(
@ISA
@EXPORT_OK
$sshdexe
$sshexe
$sftpsrvexe
$sftpexe
$sshkeygenexe
$httptlssrvexe
$sshdconfig
$sshconfig
$sftpconfig
$knownhosts
$sshdlog
$sshlog
$sftplog
$sftpcmds
$hstprvkeyf
$hstpubkeyf
$cliprvkeyf
$clipubkeyf
@sftppath
@httptlssrvpath
);
#***************************************************************************
# Inherit Exporter's capabilities
#
@ISA = qw(Exporter);
#***************************************************************************
# Global symbols this module will export upon request
#
@EXPORT_OK = qw(
$sshdexe
$sshexe
$sftpsrvexe
$sftpexe
$sshkeygenexe
$sshdconfig
$sshconfig
$sftpconfig
$knownhosts
$sshdlog
$sshlog
$sftplog
$sftpcmds
$hstprvkeyf
$hstpubkeyf
$cliprvkeyf
$clipubkeyf
display_sshdconfig
display_sshconfig
display_sftpconfig
display_sshdlog
display_sshlog
display_sftplog
dump_array
exe_ext
find_sshd
find_ssh
find_sftpsrv
find_sftp
find_sshkeygen
find_httptlssrv
logmsg
sshversioninfo
);
#***************************************************************************
# Global variables initialization
#
$sshdexe = 'sshd' .exe_ext(); # base name and ext of ssh daemon
$sshexe = 'ssh' .exe_ext(); # base name and ext of ssh client
$sftpsrvexe = 'sftp-server' .exe_ext(); # base name and ext of sftp-server
$sftpexe = 'sftp' .exe_ext(); # base name and ext of sftp client
$sshkeygenexe = 'ssh-keygen' .exe_ext(); # base name and ext of ssh-keygen
$httptlssrvexe = 'gnutls-serv' .exe_ext(); # base name and ext of gnutls-serv
$sshdconfig = 'curl_sshd_config'; # ssh daemon config file
$sshconfig = 'curl_ssh_config'; # ssh client config file
$sftpconfig = 'curl_sftp_config'; # sftp client config file
$sshdlog = undef; # ssh daemon log file
$sshlog = undef; # ssh client log file
$sftplog = undef; # sftp client log file
$sftpcmds = 'curl_sftp_cmds'; # sftp client commands batch file
$knownhosts = 'curl_client_knownhosts'; # ssh knownhosts file
$hstprvkeyf = 'curl_host_dsa_key'; # host private key file
$hstpubkeyf = 'curl_host_dsa_key.pub'; # host public key file
$cliprvkeyf = 'curl_client_key'; # client private key file
$clipubkeyf = 'curl_client_key.pub'; # client public key file
#***************************************************************************
# Absolute paths where to look for sftp-server plugin, when not in PATH
#
@sftppath = qw(
/usr/lib/openssh
/usr/libexec/openssh
/usr/libexec
/usr/local/libexec
/opt/local/libexec
/usr/lib/ssh
/usr/libexec/ssh
/usr/sbin
/usr/lib
/usr/lib/ssh/openssh
/usr/lib64/ssh
/usr/lib64/misc
/usr/lib/misc
/usr/local/sbin
/usr/freeware/bin
/usr/freeware/sbin
/usr/freeware/libexec
/opt/ssh/sbin
/opt/ssh/libexec
);
#***************************************************************************
# Absolute paths where to look for httptlssrv (gnutls-serv), when not in PATH
#
@httptlssrvpath = qw(
/usr/sbin
/usr/libexec
/usr/lib
/usr/lib/misc
/usr/lib64/misc
/usr/local/bin
/usr/local/sbin
/usr/local/libexec
/opt/local/bin
/opt/local/sbin
/opt/local/libexec
/usr/freeware/bin
/usr/freeware/sbin
/usr/freeware/libexec
/opt/gnutls/bin
/opt/gnutls/sbin
/opt/gnutls/libexec
);
#***************************************************************************
# Return file extension for executable files on this operating system
#
sub exe_ext {
if ($^O eq 'MSWin32' || $^O eq 'cygwin' || $^O eq 'msys' ||
$^O eq 'dos' || $^O eq 'os2') {
return '.exe';
}
}
#***************************************************************************
# Create or overwrite the given file with lines from an array of strings
#
sub dump_array {
my ($filename, @arr) = @_;
my $error;
if(!$filename) {
$error = 'Error: Missing argument 1 for dump_array()';
}
elsif(open(TEXTFH, ">$filename")) {
foreach my $line (@arr) {
$line .= "\n" unless($line =~ /\n$/);
print TEXTFH $line;
}
if(!close(TEXTFH)) {
$error = "Error: cannot close file $filename";
}
}
else {
$error = "Error: cannot write file $filename";
}
return $error;
}
#***************************************************************************
# Display a message
#
sub logmsg {
my ($line) = @_;
chomp $line if($line);
$line .= "\n";
print "$line";
}
#***************************************************************************
# Display contents of the given file
#
sub display_file {
my $filename = $_[0];
print "=== Start of file $filename\n";
if(open(DISPLAYFH, "<$filename")) {
while(my $line = <DISPLAYFH>) {
print "$line";
}
close DISPLAYFH;
}
print "=== End of file $filename\n";
}
#***************************************************************************
# Display contents of the ssh daemon config file
#
sub display_sshdconfig {
display_file($sshdconfig);
}
#***************************************************************************
# Display contents of the ssh client config file
#
sub display_sshconfig {
display_file($sshconfig);
}
#***************************************************************************
# Display contents of the sftp client config file
#
sub display_sftpconfig {
display_file($sftpconfig);
}
#***************************************************************************
# Display contents of the ssh daemon log file
#
sub display_sshdlog {
die "error: \$sshdlog uninitialized" if(not defined $sshdlog);
display_file($sshdlog);
}
#***************************************************************************
# Display contents of the ssh client log file
#
sub display_sshlog {
die "error: \$sshlog uninitialized" if(not defined $sshlog);
display_file($sshlog);
}
#***************************************************************************
# Display contents of the sftp client log file
#
sub display_sftplog {
die "error: \$sftplog uninitialized" if(not defined $sftplog);
display_file($sftplog);
}
#***************************************************************************
# Find a file somewhere in the given path
#
sub find_file {
my $fn = $_[0];
shift;
my @path = @_;
foreach (@path) {
my $file = File::Spec->catfile($_, $fn);
if(-e $file && ! -d $file) {
return $file;
}
}
}
#***************************************************************************
# Find an executable file somewhere in the given path
#
sub find_exe_file {
my $fn = $_[0];
shift;
my @path = @_;
my $xext = exe_ext();
foreach (@path) {
my $file = File::Spec->catfile($_, $fn);
if(-e $file && ! -d $file) {
return $file if(-x $file);
return $file if(($xext) && (lc($file) =~ /\Q$xext\E$/));
}
}
}
#***************************************************************************
# Find a file in environment path or in our sftppath
#
sub find_file_spath {
my $filename = $_[0];
my @spath;
push(@spath, File::Spec->path());
push(@spath, @sftppath);
return find_file($filename, @spath);
}
#***************************************************************************
# Find an executable file in environment path or in our httptlssrvpath
#
sub find_exe_file_hpath {
my $filename = $_[0];
my @hpath;
push(@hpath, File::Spec->path());
push(@hpath, @httptlssrvpath);
return find_exe_file($filename, @hpath);
}
#***************************************************************************
# Find ssh daemon and return canonical filename
#
sub find_sshd {
return find_file_spath($sshdexe);
}
#***************************************************************************
# Find ssh client and return canonical filename
#
sub find_ssh {
return find_file_spath($sshexe);
}
#***************************************************************************
# Find sftp-server plugin and return canonical filename
#
sub find_sftpsrv {
return find_file_spath($sftpsrvexe);
}
#***************************************************************************
# Find sftp client and return canonical filename
#
sub find_sftp {
return find_file_spath($sftpexe);
}
#***************************************************************************
# Find ssh-keygen and return canonical filename
#
sub find_sshkeygen {
return find_file_spath($sshkeygenexe);
}
#***************************************************************************
# Find httptlssrv (gnutls-serv) and return canonical filename
#
sub find_httptlssrv {
return find_exe_file_hpath($httptlssrvexe);
}
#***************************************************************************
# Return version info for the given ssh client or server binaries
#
sub sshversioninfo {
my $sshbin = $_[0]; # canonical filename
my $major;
my $minor;
my $patch;
my $sshid;
my $versnum;
my $versstr;
my $error;
if(!$sshbin) {
$error = 'Error: Missing argument 1 for sshversioninfo()';
}
elsif(! -x $sshbin) {
$error = "Error: cannot read or execute $sshbin";
}
else {
my $cmd = ($sshbin =~ /$sshdexe$/) ? "$sshbin -?" : "$sshbin -V";
$error = "$cmd\n";
foreach my $tmpstr (qx($cmd 2>&1)) {
if($tmpstr =~ /OpenSSH[_-](\d+)\.(\d+)(\.(\d+))*/i) {
$major = $1;
$minor = $2;
$patch = $4?$4:0;
$sshid = 'OpenSSH';
$versnum = (100*$major) + (10*$minor) + $patch;
$versstr = "$sshid $major.$minor.$patch";
$error = undef;
last;
}
if($tmpstr =~ /Sun[_-]SSH[_-](\d+)\.(\d+)(\.(\d+))*/i) {
$major = $1;
$minor = $2;
$patch = $4?$4:0;
$sshid = 'SunSSH';
$versnum = (100*$major) + (10*$minor) + $patch;
$versstr = "$sshid $major.$minor.$patch";
$error = undef;
last;
}
$error .= $tmpstr;
}
chomp $error if($error);
}
return ($sshid, $versnum, $versstr, $error);
}
#***************************************************************************
# End of library
1;
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