nicowilliams

I recently happened upon a very interesting implementation of popen() (different API, same idea) called popen-noshell using clone(2), and so I opened an issue requesting use of vfork(2) or posix_spawn() for portability. It turns out that on Linux there's an important advantage to using clone(2). I think I should capture the things I wrote there in a better place. A gist, a blog, whatever.

This is not a paper. I assume reader familiarity with fork() in particular and Unix in general, though, of course, I link to relevant wiki pages, so if the unfamiliar reader is willing to go down the rabbit hole, they should be able to come ou

seraphyn

#!/bin/bash
recipient_email=""
recipient_gpg_pub_key=""
sender_gpg_pub_key=""

file="$(mktemp)"
test -x /usr/share/logwatch/scripts/logwatch.pl || exit 0

/usr/sbin/logwatch --detail high > $file
test -s $file || exit 1

jsimmons

#include "ring-buffer.h"

#include <stdlib.h>
#include <string.h>
#include <assert.h>

RingBuffer *rb_new(size_t size)
{
    RingBuffer *buf = malloc(sizeof(*buf));
    assert(buf != NULL);