From 7f3caba522f4d24764f29d83aa2de9198bb7f01c Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 24 May 2024 06:52:22 +0200 Subject: Adding upstream version 6.8. Signed-off-by: Daniel Baumann --- man3/daemon.3 | 129 ---------------------------------------------------------- 1 file changed, 129 deletions(-) delete mode 100644 man3/daemon.3 (limited to 'man3/daemon.3') diff --git a/man3/daemon.3 b/man3/daemon.3 deleted file mode 100644 index 9ee1587..0000000 --- a/man3/daemon.3 +++ /dev/null @@ -1,129 +0,0 @@ -'\" t -.\" Copyright (c) 1993 -.\" The Regents of the University of California. All rights reserved. -.\" -.\" SPDX-License-Identifier: BSD-4-Clause-UC -.\" -.\" @(#)daemon.3 8.1 (Berkeley) 6/9/93 -.\" Added mentioning of glibc weirdness wrt unistd.h. 5/11/98, Al Viro -.TH daemon 3 2023-10-31 "Linux man-pages 6.7" -.SH NAME -daemon \- run in the background -.SH LIBRARY -Standard C library -.RI ( libc ", " \-lc ) -.SH SYNOPSIS -.nf -.B #include -.P -.BI "int daemon(int " nochdir ", int " noclose ); -.fi -.P -.RS -4 -Feature Test Macro Requirements for glibc (see -.BR feature_test_macros (7)): -.RE -.P -.BR daemon (): -.nf - Since glibc 2.21: -.\" commit 266865c0e7b79d4196e2cc393693463f03c90bd8 - _DEFAULT_SOURCE - In glibc 2.19 and 2.20: - _DEFAULT_SOURCE || (_XOPEN_SOURCE && _XOPEN_SOURCE < 500) - Up to and including glibc 2.19: - _BSD_SOURCE || (_XOPEN_SOURCE && _XOPEN_SOURCE < 500) -.fi -.SH DESCRIPTION -The -.BR daemon () -function is for programs wishing to detach themselves from the -controlling terminal and run in the background as system daemons. -.P -If -.I nochdir -is zero, -.BR daemon () -changes the process's current working directory -to the root directory ("/"); -otherwise, the current working directory is left unchanged. -.P -If -.I noclose -is zero, -.BR daemon () -redirects standard input, standard output, and standard error -to -.IR /dev/null ; -otherwise, no changes are made to these file descriptors. -.SH RETURN VALUE -(This function forks, and if the -.BR fork (2) -succeeds, the parent calls -.\" not .IR in order not to underline _ -.BR _exit (2), -so that further errors are seen by the child only.) -On success -.BR daemon () -returns zero. -If an error occurs, -.BR daemon () -returns \-1 and sets -.I errno -to any of the errors specified for the -.BR fork (2) -and -.BR setsid (2). -.SH ATTRIBUTES -For an explanation of the terms used in this section, see -.BR attributes (7). -.TS -allbox; -lbx lb lb -l l l. -Interface Attribute Value -T{ -.na -.nh -.BR daemon () -T} Thread safety MT-Safe -.TE -.SH VERSIONS -A similar function appears on the BSDs. -.P -The glibc implementation can also return \-1 when -.I /dev/null -exists but is not a character device with the expected -major and minor numbers. -In this case, -.I errno -need not be set. -.SH STANDARDS -None. -.SH HISTORY -4.4BSD. -.SH BUGS -The GNU C library implementation of this function was taken from BSD, -and does not employ the double-fork technique (i.e., -.BR fork (2), -.BR setsid (2), -.BR fork (2)) -that is necessary to ensure that the resulting daemon process is -not a session leader. -Instead, the resulting daemon -.I is -a session leader. -.\" FIXME . https://sourceware.org/bugzilla/show_bug.cgi?id=19144 -.\" Tested using a program that uses daemon() and then opens an -.\" otherwise unused console device (/dev/ttyN) that does not -.\" have an associated getty process. -On systems that follow System V semantics (e.g., Linux), -this means that if the daemon opens a terminal that is not -already a controlling terminal for another session, -then that terminal will inadvertently become -the controlling terminal for the daemon. -.SH SEE ALSO -.BR fork (2), -.BR setsid (2), -.BR daemon (7), -.BR logrotate (8) -- cgit v1.2.3