May 26, 2010 0
ISC’s dhcpd uses this code to check for an already-running daemon:
/* Read previous pid file. */
if ((i = open (path_dhcpd_pid, O_RDONLY)) >= 0) {
status = read (i, pbuf, (sizeof pbuf) – 1);
close (i);
if (status > 0) {
[...]
Aug 12, 2009 1
Every now and then I have to run a foreground job under sudo that doesn’t want to die when I hit ^C. Then it’s a hassle to ^Z, get the pid of the sudo job, and sudo kill that pid.
So I wrote a little script (or a template for scripts) that runs the sudo job [...]
Aug 5, 2009 0
The ctypes module makes loading and calling into a dynamic library incredibly easy.
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From The Peanut Gallery