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introduce and use close_on_exec_on(fd). -50 bytes.

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This commit is contained in:
Denis Vlasenko
2007-09-30 23:50:48 +00:00
parent deabacdf91
commit 96e1b38586
14 changed files with 41 additions and 43 deletions
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2
networking/nc.c
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@@ -113,7 +113,7 @@ int nc_main(int argc, char **argv)
lport = get_nport(&lsa->sa);
fdprintf(2, "%d\n", ntohs(lport));
}
fcntl(sfd, F_SETFD, FD_CLOEXEC);
close_on_exec_on(sfd);
accept_again:
cfd = accept(sfd, NULL, 0);
if (cfd < 0)

8
networking/udhcp/signalpipe.c
View File

@@ -39,9 +39,9 @@ void udhcp_sp_setup(void)
{
/* was socketpair, but it needs AF_UNIX in kernel */
xpipe(signal_pipe);
fcntl(signal_pipe[0], F_SETFD, FD_CLOEXEC);
fcntl(signal_pipe[1], F_SETFD, FD_CLOEXEC);
fcntl(signal_pipe[1], F_SETFL, O_NONBLOCK);
close_on_exec_on(signal_pipe[0]);
close_on_exec_on(signal_pipe[1]);
ndelay_on(signal_pipe[1]);
signal(SIGUSR1, signal_handler);
signal(SIGUSR2, signal_handler);
signal(SIGTERM, signal_handler);
@@ -56,7 +56,7 @@ int udhcp_sp_fd_set(fd_set *rfds, int extra_fd)
FD_ZERO(rfds);
FD_SET(signal_pipe[0], rfds);
if (extra_fd >= 0) {
fcntl(extra_fd, F_SETFD, FD_CLOEXEC);
close_on_exec_on(extra_fd);
FD_SET(extra_fd, rfds);
}
return signal_pipe[0] > extra_fd ? signal_pipe[0] : extra_fd;