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|
use Config;
sub warn_or_diag {
if ($INC{'Test/More.pm'}) {
diag(@_);
} else {
warn @_;
}
}
my $test_file_name = 'test.c';
my $binary_name = 'a.out';
my $output = q[];
open FOO, ">$test_file_name" or die "Failed to open $test_file_name for writing:$!";
print FOO <<'_OUT_';
#include <sys/types.h>
#include <sys/random.h>
int main(void)
{
char buf[5];
int l = 5;
unsigned int o = 1;
int r = getrandom(buf, l, o);
return 0;
}
_OUT_
close FOO or die "Failed to close $test_file_name:$!";
$output .= `$Config{cc} -o $binary_name $test_file_name 2>&1`;
unlink $test_file_name or die "Failed to unlink $test_file_name:$!";
if ($? == 0) {
warn_or_diag "getrandom from sys/random is AVAILABLE\n";
unlink $binary_name or die "Failed to unlink $binary_name:$!";
$optional{DEFINE} = '-DHAVE_CRYPT_URANDOM_NATIVE_GETRANDOM';
} else {
warn_or_diag "getrandom from sys/random is unavailable\n";
open FOO, ">$test_file_name" or die "Failed to open $test_file_name for writing:$!";
print FOO <<'_OUT_';
#include <sys/syscall.h>
int main(void)
{
char buf[5];
int l = 5;
unsigned int o = 1;
int r = syscall(SYS_getrandom, buf, l, o);
return 0;
}
_OUT_
close FOO or die "Failed to close $test_file_name:$!";
$output .= `$Config{cc} -o $binary_name $test_file_name 2>&1`;
if ($? == 0) {
warn_or_diag "SYS_getrandom from sys/syscall is AVAILABLE\n";
unlink $binary_name or die "Failed to unlink $binary_name:$!";
$optional{DEFINE} = '-DHAVE_CRYPT_URANDOM_SYSCALL_GETRANDOM';
} else {
warn_or_diag "SYS_getrandom from sys/syscall is unavailable\n";
open FOO, ">$test_file_name" or die "Failed to open $test_file_name for writing:$!";
print FOO <<'_OUT_';
#include <sys/types.h>
#include <sys/random.h>
int main(void)
{
char buf[5];
int l = 5;
arc4random_buf(buf, l);
return l;
}
_OUT_
close FOO or die "Failed to close $test_file_name:$!";
$output .= `$Config{cc} -o $binary_name $test_file_name 2>&1`;
if ($? == 0) {
warn_or_diag "arc4random_buf from sys/random is AVAILABLE\n";
unlink $binary_name or die "Failed to unlink $binary_name:$!";
$optional{DEFINE} = '-DHAVE_CRYPT_URANDOM_NATIVE_ARC4RANDOM_BUF';
} else {
warn_or_diag "arc4random_buf from sys/random is unavailable\n";
open FOO, ">$test_file_name" or die "Failed to open $test_file_name for writing:$!";
print FOO <<'_OUT_';
#include <unistd.h>
int main(void)
{
char buf[5];
int l = 5;
arc4random_buf(buf, l);
return l;
}
_OUT_
close FOO or die "Failed to close $test_file_name:$!";
$output .= `$Config{cc} -o $binary_name $test_file_name 2>&1`;
if ($? == 0) {
warn_or_diag "arc4random_buf from unistd is AVAILABLE\n";
unlink $binary_name or die "Failed to unlink $binary_name:$!";
$optional{DEFINE} = '-DHAVE_CRYPT_URANDOM_UNISTD_ARC4RANDOM_BUF';
} else {
warn_or_diag "arc4random_buf from unistd is unavailable\n";
open FOO, ">$test_file_name" or die "Failed to open $test_file_name for writing:$!";
print FOO <<'_OUT_';
#include <stdlib.h>
int main(void)
{
char buf[5];
int l = 5;
arc4random_buf(buf, l);
return l;
}
_OUT_
close FOO or die "Failed to close $test_file_name:$!";
$output .= `$Config{cc} -o $binary_name $test_file_name 2>&1`;
if ($? == 0) {
warn_or_diag "arc4random_buf from stdlib is AVAILABLE\n";
unlink $binary_name or die "Failed to unlink $binary_name:$!";
$optional{DEFINE} = '-DHAVE_CRYPT_URANDOM_STDLIB_ARC4RANDOM_BUF';
} else {
warn_or_diag "arc4random_buf from unistd is unavailable\n";
open FOO, ">$test_file_name" or die "Failed to open $test_file_name for writing:$!";
print FOO <<'_OUT_';
int main(void)
{
return 0;
}
_OUT_
close FOO or die "Failed to close $test_file_name:$!";
$output .= `$Config{cc} -o $binary_name $test_file_name 2>&1`;
if ($? == 0) {
warn_or_diag "C compiler is AVAILABLE\n";
if ($ENV{CRYPT_URANDOM_BUILD_DEBUG}) {
warn_or_diag $output;
}
unlink $binary_name or die "Failed to unlink $binary_name:$!";
$optional{DEFINE} = '-DUNKNOWN_ENVIRONMENT';
} else {
warn_or_diag "C compiler is unavailable\n";
$optional{DEFINE} = '-DNO_COMPILER_FOUND';
}
}
}
}
}
unlink $test_file_name or die "Failed to unlink $test_file_name:$!";
}
|
