When compiling restorecond with -Wunused, gcc 4.8.4 (from Ubuntu 14.04)
reports the following warnings:
restorecond.c: In function ‘main’:
restorecond.c:208:9: error: ignoring return value of ‘daemon’,
declared with attribute warn_unused_result [-Werror=unused-result]
daemon(0, 0);
^
restorecond.c: In function ‘write_pid_file’:
restorecond.c:106:2: error: ignoring return value of ‘write’,
declared with attribute warn_unused_result [-Werror=unused-result]
(void)write(pidfd, val, (unsigned int)len);
^
If any of these calls returns an error, it is currently silently
discarded. Add a message in order to warn about such an error.
Signed-off-by: Nicolas Iooss <nicolas.iooss@m4x.org>
04fb15deb7