Date: Fri, 01 Mar 2019 01:06:59 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 236117] /usr/sbin/daemon should support stdin,stdout,stderr redirect to files other than /dev/null Message-ID: <bug-236117-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=236117 Bug ID: 236117 Summary: /usr/sbin/daemon should support stdin,stdout,stderr redirect to files other than /dev/null Product: Base System Version: 11.2-STABLE Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: bin Assignee: bugs@FreeBSD.org Reporter: zhoutao@laocius.org The daemon command has an option `-f`, which, according to the man page, redirects stding,stdout,stderr to /dev/null. This is fine. But if I cannot redirect stdin, stdout, stderr to different files respectively. There is a `-o` option, ``` -o output_file Append output from the daemonized process to output_file. If the file does not exist, it is created with permissions 0600. ``` The problem I am having now is that daemon command was used in some freebsd rc.d scripts without the `-f` option. When I try to restart those services through python subprocess.Popen, it would hang indefinitely. The problem can be easily reproduced by ``` python3 -c 'import subprocess; subprocess.Popen(["/usr/sbin/service", "mytestservice", "onerestart"], stderr=subprocess.PIPE).communicate()' ``` I can add the `-f` option to fix the problem, but `-f` will override the `-o` option, and I end up with no log at all. I think it would be nice if the daemon command can support redirecting stdin, stdout, stderr separately. -- You are receiving this mail because: You are the assignee for the bug.help
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