There are some places in the systemd which are use the same pattern:
fd_cloexec(STDIN_FILENO, false);
fd_cloexec(STDOUT_FILENO, false);
fd_cloexec(STDERR_FILENO, false);
to unset CLOEXEC for standard file descriptors. This patch introduces
the stdio_unset_cloexec() function to hide this and make code cleaner.
return 0;
}
+void stdio_unset_cloexec(void) {
+ fd_cloexec(STDIN_FILENO, false);
+ fd_cloexec(STDOUT_FILENO, false);
+ fd_cloexec(STDERR_FILENO, false);
+}
+
_pure_ static bool fd_in_set(int fd, const int fdset[], unsigned n_fdset) {
unsigned i;
int fd_nonblock(int fd, bool nonblock);
int fd_cloexec(int fd, bool cloexec);
+void stdio_unset_cloexec(void);
int close_all_fds(const int except[], unsigned n_except);