File: invoke-with-content-length.pl

package info (click to toggle)
git 1%3A2.50.1-0.1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 61,696 kB
  • sloc: ansic: 302,907; sh: 260,696; perl: 27,874; tcl: 22,303; makefile: 4,280; python: 3,442; javascript: 772; csh: 45; lisp: 12
file content (36 lines) | stat: -rw-r--r-- 865 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
require v5.26;
use strict;
use warnings;

my $body_filename = $ARGV[0];
my @command = @ARGV[1 .. $#ARGV];

# read data
my $body_size = -s $body_filename;
$ENV{"CONTENT_LENGTH"} = $body_size;
open(my $body_fh, "<", $body_filename) or die "Cannot open $body_filename: $!";
my $body_data;
defined read($body_fh, $body_data, $body_size) or die "Cannot read $body_filename: $!";
close($body_fh);

# write data
my $pid = open(my $out, "|-", @command);
{
        # disable buffering at $out
        my $old_selected = select;
        select $out;
        $| = 1;
        select $old_selected;
}
print $out $body_data or die "Cannot write data: $!";

$SIG{ALRM} = sub {
        kill 'KILL', $pid;
        die "Command did not exit after reading whole body";
};
alarm 60;

my $ret = waitpid($pid, 0);
if ($ret != $pid) {
        die "confusing return from waitpid: $ret";
}