diff options
Diffstat (limited to 'nscd/nscd.c')
| -rw-r--r-- | nscd/nscd.c | 59 |
1 files changed, 43 insertions, 16 deletions
diff --git a/nscd/nscd.c b/nscd/nscd.c index 9cd7273..38a1421 100644 --- a/nscd/nscd.c +++ b/nscd/nscd.c @@ -1,4 +1,4 @@ -/* Copyright (c) 1998-2011, 2012 Free Software Foundation, Inc. +/* Copyright (c) 1998-2012 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Thorsten Kukuk <kukuk@suse.de>, 1998. @@ -71,7 +71,19 @@ thread_info_t thread_info; int do_shutdown; int disabled_passwd; int disabled_group; -int go_background = 1; + +enum +{ + /* Running in foreground but otherwise behave like a daemon, + i.e., detach from terminal and use syslog. This allows + better integration with services like systemd. */ + RUN_FOREGROUND, + /* Running in background as daemon. */ + RUN_DAEMONIZE, + /* Run in foreground in debug mode. */ + RUN_DEBUG +}; +static int run_mode = RUN_DAEMONIZE; static const char *conffile = _PATH_NSCDCONF; @@ -103,6 +115,8 @@ static const struct argp_option options[] = N_("Read configuration data from NAME") }, { "debug", 'd', NULL, 0, N_("Do not fork and display messages on the current tty") }, + { "foreground", 'F', NULL, 0, + N_("Do not fork, but otherwise behave like a deamon") }, { "nthreads", 't', N_("NUMBER"), 0, N_("Start NUMBER threads") }, { "shutdown", 'K', NULL, 0, N_("Shut the server down") }, { "statistics", 'g', NULL, 0, N_("Print current configuration statistics") }, @@ -173,16 +187,22 @@ main (int argc, char **argv) /* Determine page size. */ pagesize_m1 = getpagesize () - 1; - /* Behave like a daemon. */ - if (go_background) + if ((run_mode == RUN_DAEMONIZE) || (run_mode == RUN_FOREGROUND)) { int i; + pid_t pid; - pid_t pid = fork (); - if (pid == -1) - error (EXIT_FAILURE, errno, _("cannot fork")); - if (pid != 0) - exit (0); + /* Behave like a daemon. */ + if (run_mode == RUN_DAEMONIZE) + { + pid = fork (); + if (pid == -1) + error (EXIT_FAILURE, errno, _("cannot fork")); + if (pid != 0) + exit (0); + } + else + fprintf (stderr, _("further output sent to syslog\n")); int nullfd = open (_PATH_DEVNULL, O_RDWR); if (nullfd != -1) @@ -233,11 +253,14 @@ main (int argc, char **argv) for (i = min_close_fd; i < getdtablesize (); i++) close (i); - pid = fork (); - if (pid == -1) - error (EXIT_FAILURE, errno, _("cannot fork")); - if (pid != 0) - exit (0); + if (run_mode == RUN_DAEMONIZE) + { + pid = fork (); + if (pid == -1) + error (EXIT_FAILURE, errno, _("cannot fork")); + if (pid != 0) + exit (0); + } setsid (); @@ -259,7 +282,7 @@ main (int argc, char **argv) signal (SIGTSTP, SIG_IGN); } else - /* In foreground mode we are not paranoid. */ + /* In debug mode we are not paranoid. */ paranoia = 0; signal (SIGINT, termination_handler); @@ -308,7 +331,11 @@ parse_opt (int key, char *arg, struct argp_state *state) { case 'd': ++debug_level; - go_background = 0; + run_mode = RUN_DEBUG; + break; + + case 'F': + run_mode = RUN_FOREGROUND; break; case 'f': |