@ARGV > 0 or die "Syntax: $0 <target dir> <filename> <md5sum> <mirror> [<mirror> ...]\n";
+sub which($) {
+ my $prog = shift;
+ my $res = `which $prog`;
+ $res or return undef;
+ $res =~ /^no / and return undef;
+ $res =~ /not found/ and return undef;
+ return $res;
+}
+
+my $md5cmd = which("md5sum");
+$md5cmd or $md5cmd = which("md5");
+$md5cmd or die 'no md5 checksum program found, please install md5 or md5sum';
+chomp $md5cmd;
+
sub download
{
my $mirror = shift;
-
- open WGET, "wget -t1 --timeout=20 -O- \"$mirror/$filename\" |" or die "Cannot launch wget.\n";
- open MD5SUM, "| md5sum > \"$target/$filename.md5sum\"" or die "Cannot launch md5sum.\n";
+ my $options = $ENV{WGET_OPTIONS};
+ $options or $options = "";
+
+ open WGET, "wget -t1 --timeout=20 $options -O- \"$mirror/$filename\" |" or die "Cannot launch wget.\n";
+ open MD5SUM, "| $md5cmd > \"$target/$filename.md5sum\"" or die "Cannot launch md5sum.\n";
open OUTPUT, "> $target/$filename.dl" or die "Cannot create file $target/$filename.dl: $!\n";
my $buffer;
while (read WGET, $buffer, 1048576) {
}
my $sum = `cat "$target/$filename.md5sum"`;
- $sum =~ /^(\w+)\s+/ or die "Could not generate md5sum\n";
+ $sum =~ /^(\w+)\s*/ or die "Could not generate md5sum\n";
$sum = $1;
if (($md5sum =~ /\w{32}/) and ($sum ne $md5sum)) {