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sd-daemon: simply code simplification

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No change in behaviour, just make the code more obvious.
This commit is contained in:
Lennart Poettering 2015-10-09 17:17:28 +02:00
parent b492ce8a22
commit c463a6f1c4
1 changed files with 4 additions and 2 deletions
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6
src/libsystemd/sd-daemon/sd-daemon.c
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@ -450,8 +450,10 @@ _public_ int sd_pid_notify_with_fds(pid_t pid, int unset_environment, const char
if (n_fds > 0 || have_pid) {
/* CMSG_SPACE(0) may return value different then zero, which results in miscalculated controllen. */
msghdr.msg_controllen = (n_fds ? CMSG_SPACE(sizeof(int) * n_fds) : 0) +
CMSG_SPACE(sizeof(struct ucred)) * have_pid;
msghdr.msg_controllen =
(n_fds > 0 ? CMSG_SPACE(sizeof(int) * n_fds) : 0) +
(have_pid ? CMSG_SPACE(sizeof(struct ucred)) : 0);
msghdr.msg_control = alloca(msghdr.msg_controllen);
cmsg = CMSG_FIRSTHDR(&msghdr);