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Make the processing of build.info files more aware of absolute dirs 

There were cases where some input was absolute, and concatenating it
to the diretory to the source or build top could fail spectacularly.
Let's check the input first to see if it's absolute.

And while we're on the subject of checking if a file or dir spec is
absolute using file_name_is_absolute() has its own quirks on VMS,
where a logical name is considered absolute under most circumstances.
This is perfectly correct from a VMS point of view, but when parsing
the build.info files, we want single word file or directory names to
only be checked syntactically.  A function isabsolute() that does the
right thing is the solution.

Reviewed-by: Rich Salz <rsalz@openssl.org>
This commit is contained in:
Richard Levitte 2016-02-10 02:00:37 +01:00
parent 183733f882
commit 2e963849b7
1 changed files with 49 additions and 26 deletions
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75
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@ -1183,27 +1183,34 @@ if ($builder eq "unified") {
use with_fallback qw(Text::Template);
sub cleandir {
my $base = shift;
my $dir = shift;
my $base = shift || ".";
my $relativeto = shift || ".";
$dir = catdir($base,$dir) unless isabsolute($dir);
# Make sure the directories we're building in exists
mkpath($dir);
my $res = abs2rel(absolutedir($dir), rel2abs($base));
my $res = abs2rel(absolutedir($dir), rel2abs($relativeto));
#print STDERR "DEBUG[cleandir]: $dir , $base => $res\n";
return $res;
}
sub cleanfile {
my $base = shift;
my $file = shift;
my $base = shift || ".";
my $relativeto = shift || ".";
$file = catfile($base,$file) unless isabsolute($file);
my $d = dirname($file);
my $f = basename($file);
# Make sure the directories we're building in exists
mkpath($d);
my $res = abs2rel(catfile(absolutedir($d), $f), rel2abs($base));
my $res = abs2rel(catfile(absolutedir($d), $f), rel2abs($relativeto));
#print STDERR "DEBUG[cleanfile]: $d , $f => $res\n";
return $res;
}
@ -1345,8 +1352,8 @@ if ($builder eq "unified") {
die "$_ renamed to more than one thing: "
,join(" ", @{$renames{$_}}),"\n"
if scalar @{$renames{$_}} > 1;
my $dest = cleanfile(catfile($buildd, $_), $blddir);
my $to = cleanfile(catfile($buildd, $renames{$_}->[0]), $blddir);
my $dest = cleanfile($buildd, $_, $blddir);
my $to = cleanfile($buildd, $renames{$_}->[0], $blddir);
die "$dest renamed to more than one thing: "
,$unified_info{rename}->{$dest}, $to
unless !defined($unified_info{rename}->{$dest})
@ -1355,7 +1362,7 @@ if ($builder eq "unified") {
}
foreach (@programs) {
my $program = cleanfile(catfile($buildd, $_), $blddir);
my $program = cleanfile($buildd, $_, $blddir);
if ($unified_info{rename}->{$program}) {
$program = $unified_info{rename}->{$program};
}
@ -1363,7 +1370,7 @@ if ($builder eq "unified") {
}
foreach (@libraries) {
my $library = cleanfile(catfile($buildd, $_), $blddir);
my $library = cleanfile($buildd, $_, $blddir);
if ($unified_info{rename}->{$library}) {
$library = $unified_info{rename}->{$library};
}
@ -1375,7 +1382,7 @@ ENGINES can only be used if configured with 'shared'.
This is usually a fault in a build.info file.
EOF
foreach (@engines) {
my $library = cleanfile(catfile($buildd, $_), $blddir);
my $library = cleanfile($buildd, $_, $blddir);
if ($unified_info{rename}->{$library}) {
$library = $unified_info{rename}->{$library};
}
@ -1383,7 +1390,7 @@ EOF
}
foreach (@scripts) {
my $script = cleanfile(catfile($buildd, $_), $blddir);
my $script = cleanfile($buildd, $_, $blddir);
if ($unified_info{rename}->{$script}) {
$script = $unified_info{rename}->{$script};
}
@ -1391,7 +1398,7 @@ EOF
}
foreach (@extra) {
my $extra = cleanfile(catfile($buildd, $_), $blddir);
my $extra = cleanfile($buildd, $_, $blddir);
$unified_info{extra}->{$extra} = 1;
}
@ -1400,15 +1407,14 @@ EOF
if (!$config{no_shared}) {
# Check sharednames.
foreach (keys %sharednames) {
my $dest = cleanfile(catfile($buildd, $_), $blddir);
my $dest = cleanfile($buildd, $_, $blddir);
if ($unified_info{rename}->{$dest}) {
$dest = $unified_info{rename}->{$dest};
}
die "shared_name for $dest with multiple values: "
,join(" ", @{$sharednames{$_}}),"\n"
if scalar @{$sharednames{$_}} > 1;
my $to = cleanfile(catfile($buildd, $sharednames{$_}->[0]),
$blddir);
my $to = cleanfile($buildd, $sharednames{$_}->[0], $blddir);
die "shared_name found for a library $dest that isn't defined\n"
unless $unified_info{libraries}->{$dest};
die "shared_name for $dest with multiple values: "
@ -1429,7 +1435,7 @@ EOF
foreach (keys %ordinals) {
my $dest = $_;
my $ddest = cleanfile(catfile($buildd, $_), $blddir);
my $ddest = cleanfile($buildd, $_, $blddir);
if ($unified_info{rename}->{$ddest}) {
$ddest = $unified_info{rename}->{$ddest};
}
@ -1437,9 +1443,9 @@ EOF
my %known_ordinals =
(
crypto =>
cleanfile(catfile($sourced, "util", "libeay.num"), $blddir),
cleanfile($sourced, catfile("util", "libeay.num"), $blddir),
ssl =>
cleanfile(catfile($sourced, "util", "ssleay.num"), $blddir)
cleanfile($sourced, catfile("util", "ssleay.num"), $blddir)
);
my $o = $known_ordinals{$_};
die "Ordinals for $ddest defined more than once\n"
@ -1450,22 +1456,22 @@ EOF
foreach (keys %sources) {
my $dest = $_;
my $ddest = cleanfile(catfile($buildd, $_), $blddir);
my $ddest = cleanfile($buildd, $_, $blddir);
if ($unified_info{rename}->{$ddest}) {
$ddest = $unified_info{rename}->{$ddest};
}
foreach (@{$sources{$dest}}) {
my $s = cleanfile(catfile($sourced, $_), $blddir);
my $s = cleanfile($sourced, $_, $blddir);
# If it isn't in the source tree, we assume it's generated
# in the build tree
if (! -f $s) {
$s = cleanfile(catfile($buildd, $_), $blddir);
$s = cleanfile($buildd, $_, $blddir);
}
# We recognise C and asm files
if ($s =~ /\.[csS]\b$/) {
(my $o = $_) =~ s/\.[csS]\b$/.o/;
$o = cleanfile(catfile($buildd, $o), $blddir);
$o = cleanfile($buildd, $o, $blddir);
$unified_info{sources}->{$ddest}->{$o} = 1;
$unified_info{sources}->{$o}->{$s} = 1;
} else {
@ -1476,17 +1482,17 @@ EOF
foreach (keys %depends) {
my $dest = $_;
my $ddest = cleanfile(catfile($buildd, $_), $blddir);
my $ddest = cleanfile($buildd, $_, $blddir);
if ($unified_info{rename}->{$ddest}) {
$ddest = $unified_info{rename}->{$ddest};
}
foreach (@{$depends{$dest}}) {
my $d = cleanfile(catfile($sourced, $_), $blddir);
my $d = cleanfile($sourced, $_, $blddir);
# If it isn't found in the source, let's assume it's generated
# and that the Makefile template has the lines
if (! -f $d) {
$d = cleanfile(catfile($buildd, $_), $blddir);
$d = cleanfile($buildd, $_, $blddir);
}
# Take note if the file to depend on is being renamed
if ($unified_info{rename}->{$d}) {
@ -1505,12 +1511,12 @@ EOF
foreach (keys %includes) {
my $dest = $_;
my $ddest = cleanfile(catfile($buildd, $_), $blddir);
my $ddest = cleanfile($buildd, $_, $blddir);
if ($unified_info{rename}->{$ddest}) {
$ddest = $unified_info{rename}->{$ddest};
}
foreach (@{$includes{$dest}}) {
my $i = cleandir(catdir($sourced, $_), $blddir);
my $i = cleandir($sourced, $_, $blddir);
push @{$unified_info{includes}->{$ddest}}, $i
unless grep { $_ eq $i } @{$unified_info{includes}->{$ddest}};
}
@ -2206,6 +2212,23 @@ sub print_table_entry
# Utility routines ###################################################
# On VMS, if the given file is a logical name, File::Spec::Functions
# will consider it an absolute path. There are cases when we want a
# purely syntactic check without checking the environment.
sub isabsolute {
my $file = shift;
# On non-platforms, we just use file_name_is_absolute().
return file_name_is_absolute($file) unless $^O eq "VMS";
# If the file spec includes a device or a directpry spec,
# file_name_is_absolute() is perfectly safe.
return file_name_is_absolute($file) if $file =~ m|[:\[]|;
# Here, we know the given file spec isn't absolute
return 0;
}
# Makes a directory absolute and cleans out /../ in paths like foo/../bar
# On some platforms, this uses rel2abs(), while on others, realpath() is used.
# realpath() requires that at least all path components except the last is an