On 18/12/15 17:27, Rainer Weikusat wrote:
John Hughes <j...@atlantech.com> writes:


Can't find the string "ESYADMINDEPRECATED" in the source for
libsystemd0.
That's not really surprising as there is no source for
'libsystemd0'. It's a part of systemd,

https://packages.debian.org/sid/libsystemd0

and the source of that doesn't contain 'if (init_is_systemd)' either.

You were implicitly claiming that libsystemd would produce errors if systemd was installed. I was, perhaps flippantly, noting that it doesn't.

You are right, libsystemd0 is made from the same source package as systemd, but so what? The source is available, look in the src/libsystemd directory.

public_ int sd_listen_fds(int unset_environment) {
        const char *e;
        unsigned n;
        int r, fd;
        pid_t pid;

        e = getenv("LISTEN_PID");
        if (!e) {
                r = 0;
                goto finish;
        }

If "LISTEN_PID" is not set then we're not started by inetd, not systemd, so the first and only input device is stdin, just like always. (By the way, I think the interface for this function is pretty shitty, it could simplify the caller if in the inetd case it dup'ed stdin to SD_LISTEN_FDS_START and then everyone could pretend they were being started by systemd, but I expect that would have caused bigger howls of outrage).
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