2011-08-05 14:11:04 +00:00
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diff -up cups-1.5.0/config-scripts/cups-systemd.m4.systemd-socket cups-1.5.0/config-scripts/cups-systemd.m4
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--- cups-1.5.0/config-scripts/cups-systemd.m4.systemd-socket 2011-08-05 15:09:00.789855786 +0100
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+++ cups-1.5.0/config-scripts/cups-systemd.m4 2011-08-05 15:09:00.789855786 +0100
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2011-07-04 20:04:49 +00:00
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@@ -0,0 +1,25 @@
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+dnl
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+dnl "$Id$"
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+dnl
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+dnl systemd stuff for CUPS.
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+
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+dnl Find whether systemd is available
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+
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+AC_ARG_WITH([systemdsystemunitdir],
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+ AS_HELP_STRING([--with-systemdsystemunitdir=DIR], [Directory for systemd service files]),
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+ [], [with_systemdsystemunitdir=$($PKGCONFIG --variable=systemdsystemunitdir systemd)])
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+if test "x$with_systemdsystemunitdir" != xno; then
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+ AC_SUBST([systemdsystemunitdir], [$with_systemdsystemunitdir])
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+fi
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+
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+if test -n "$with_systemdsystemunitdir" -a "x$with_systemdsystemunitdir" != xno ; then
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+ SYSTEMD_UNITS="cups.service cups.socket cups.path"
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+else
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+ SYSTEMD_UNITS=""
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+fi
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+
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+AC_SUBST(SYSTEMD_UNITS)
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+
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+dnl
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+dnl "$Id$"
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+dnl
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2011-08-05 14:11:04 +00:00
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diff -up cups-1.5.0/configure.in.systemd-socket cups-1.5.0/configure.in
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--- cups-1.5.0/configure.in.systemd-socket 2010-11-20 01:03:46.000000000 +0000
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+++ cups-1.5.0/configure.in 2011-08-05 15:09:00.789855786 +0100
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2011-07-04 20:04:49 +00:00
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@@ -37,6 +37,7 @@ sinclude(config-scripts/cups-pam.m4)
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sinclude(config-scripts/cups-largefile.m4)
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sinclude(config-scripts/cups-dnssd.m4)
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sinclude(config-scripts/cups-launchd.m4)
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+sinclude(config-scripts/cups-systemd.m4)
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sinclude(config-scripts/cups-defaults.m4)
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sinclude(config-scripts/cups-pdf.m4)
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sinclude(config-scripts/cups-scripting.m4)
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@@ -71,6 +72,9 @@ AC_OUTPUT(Makedefs
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conf/snmp.conf
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cups-config
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data/testprint
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+ data/cups.service
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+ data/cups.socket
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+ data/cups.path
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desktop/cups.desktop
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doc/help/ref-cupsd-conf.html
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doc/help/standard.html
|
2011-08-05 14:11:04 +00:00
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diff -up cups-1.5.0/data/cups.path.in.systemd-socket cups-1.5.0/data/cups.path.in
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--- cups-1.5.0/data/cups.path.in.systemd-socket 2011-08-05 15:09:00.790855758 +0100
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+++ cups-1.5.0/data/cups.path.in 2011-08-05 15:09:00.790855758 +0100
|
2011-07-04 20:04:49 +00:00
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@@ -0,0 +1,8 @@
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+[Unit]
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+Description=CUPS Printer Service Spool
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+
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+[Path]
|
2011-09-01 09:47:44 +00:00
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+PathExistsGlob=@CUPS_REQUESTS@/d*
|
2011-07-04 20:04:49 +00:00
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+
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+[Install]
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+WantedBy=multi-user.target
|
2011-08-05 14:11:04 +00:00
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diff -up cups-1.5.0/data/cups.service.in.systemd-socket cups-1.5.0/data/cups.service.in
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--- cups-1.5.0/data/cups.service.in.systemd-socket 2011-08-05 15:09:00.791855730 +0100
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+++ cups-1.5.0/data/cups.service.in 2011-08-05 15:09:00.791855730 +0100
|
2011-07-04 20:04:49 +00:00
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@@ -0,0 +1,9 @@
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+[Unit]
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+Description=CUPS Printing Service
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+
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+[Service]
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+ExecStart=@sbindir@/cupsd -f
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+
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+[Install]
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+Also=cups.socket cups.path
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+WantedBy=printer.target
|
2011-08-05 14:11:04 +00:00
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diff -up cups-1.5.0/data/cups.socket.in.systemd-socket cups-1.5.0/data/cups.socket.in
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--- cups-1.5.0/data/cups.socket.in.systemd-socket 2011-08-05 15:09:00.791855730 +0100
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+++ cups-1.5.0/data/cups.socket.in 2011-08-05 15:09:00.791855730 +0100
|
2011-07-04 20:04:49 +00:00
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@@ -0,0 +1,9 @@
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+[Unit]
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+Description=CUPS Printing Service Sockets
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+
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+[Socket]
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+ListenStream=@CUPS_DEFAULT_DOMAINSOCKET@
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+ListenStream=631
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+
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+[Install]
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|
+WantedBy=sockets.target
|
2011-08-05 14:11:04 +00:00
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diff -up cups-1.5.0/data/Makefile.systemd-socket cups-1.5.0/data/Makefile
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--- cups-1.5.0/data/Makefile.systemd-socket 2011-05-12 06:21:56.000000000 +0100
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+++ cups-1.5.0/data/Makefile 2011-08-05 15:09:00.790855758 +0100
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@@ -112,6 +112,12 @@ install-data:
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|
$(INSTALL_DATA) $$file $(DATADIR)/ppdc; \
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|
done
|
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$(INSTALL_DIR) -m 755 $(DATADIR)/profiles
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+ if test "x$(SYSTEMD_UNITS)" != "x" ; then \
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+ $(INSTALL_DIR) -m 755 $(SYSTEMDUNITDIR); \
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|
+ for file in $(SYSTEMD_UNITS); do \
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|
+ $(INSTALL_DATA) $$file $(SYSTEMDUNITDIR); \
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|
+ done; \
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+ fi
|
2011-07-04 20:04:49 +00:00
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#
|
2011-08-05 14:11:04 +00:00
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@@ -159,6 +165,9 @@ uninstall:
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|
-$(RMDIR) $(DATADIR)/charsets
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-$(RMDIR) $(DATADIR)/banners
|
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|
-$(RMDIR) $(DATADIR)
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|
|
+ for file in $(SYSTEMD_UNITS); do \
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|
|
+ $(RM) $(SYSTEMDUNITDIR)/$$file; \
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|
|
+ done
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|
|
|
|
2011-07-04 20:04:49 +00:00
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|
|
#
|
2011-08-05 14:11:04 +00:00
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diff -up cups-1.5.0/Makedefs.in.systemd-socket cups-1.5.0/Makedefs.in
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|
--- cups-1.5.0/Makedefs.in.systemd-socket 2011-08-05 15:08:39.672435367 +0100
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|
+++ cups-1.5.0/Makedefs.in 2011-08-05 15:09:00.788855814 +0100
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@@ -143,6 +143,7 @@ CXXFLAGS = @CPPFLAGS@ @CXXFLAGS@
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CXXLIBS = @CXXLIBS@
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DBUS_NOTIFIER = @DBUS_NOTIFIER@
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DBUS_NOTIFIERLIBS = @DBUS_NOTIFIERLIBS@
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+SYSTEMD_UNITS = @SYSTEMD_UNITS@
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DNSSD_BACKEND = @DNSSD_BACKEND@
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|
|
DSOFLAGS = -L../cups @DSOFLAGS@
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|
DSOLIBS = @DSOLIBS@ $(COMMONLIBS)
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@@ -267,6 +268,7 @@ PAMFILE = @PAMFILE@
|
2011-07-04 20:04:49 +00:00
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|
2011-08-05 14:11:04 +00:00
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DEFAULT_LAUNCHD_CONF = @DEFAULT_LAUNCHD_CONF@
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|
DBUSDIR = @DBUSDIR@
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|
+SYSTEMDUNITDIR = $(BUILDROOT)@systemdsystemunitdir@
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#
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diff -up cups-1.5.0/scheduler/main.c.systemd-socket cups-1.5.0/scheduler/main.c
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|
|
--- cups-1.5.0/scheduler/main.c.systemd-socket 2011-08-05 15:08:39.755433088 +0100
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|
+++ cups-1.5.0/scheduler/main.c 2011-08-05 15:09:00.795855621 +0100
|
2011-07-04 20:04:49 +00:00
|
|
|
@@ -26,6 +26,8 @@
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|
* launchd_checkin() - Check-in with launchd and collect the listening
|
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* fds.
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* launchd_checkout() - Update the launchd KeepAlive file as needed.
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+ * systemd_checkin() - Check-in with systemd and collect the
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+ * listening fds.
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|
* parent_handler() - Catch USR1/CHLD signals...
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|
* process_children() - Process all dead children...
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|
* select_timeout() - Calculate the select timeout value.
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|
@@ -62,6 +64,8 @@
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|
|
# endif /* !LAUNCH_JOBKEY_SERVICEIPC */
|
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|
|
#endif /* HAVE_LAUNCH_H */
|
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|
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|
|
|
|
+#include "sd-daemon.h"
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|
|
+
|
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|
|
#if defined(HAVE_MALLOC_H) && defined(HAVE_MALLINFO)
|
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|
|
# include <malloc.h>
|
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|
|
#endif /* HAVE_MALLOC_H && HAVE_MALLINFO */
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|
@@ -78,6 +82,7 @@
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|
|
static void launchd_checkin(void);
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|
|
static void launchd_checkout(void);
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|
|
#endif /* HAVE_LAUNCHD */
|
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|
|
+static void systemd_checkin(void);
|
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|
|
static void parent_handler(int sig);
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|
|
static void process_children(void);
|
|
|
|
static void sigchld_handler(int sig);
|
2011-08-05 14:11:04 +00:00
|
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|
@@ -538,6 +543,11 @@ main(int argc, /* I - Number of comm
|
2011-07-04 20:04:49 +00:00
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|
#endif /* HAVE_LAUNCHD */
|
|
|
|
|
|
|
|
/*
|
|
|
|
+ * If we were started by systemd get the listen sockets file descriptors...
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|
|
+ */
|
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|
+ systemd_checkin();
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|
+
|
|
|
|
+ /*
|
|
|
|
* Startup the server...
|
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|
|
*/
|
|
|
|
|
2011-08-05 14:11:04 +00:00
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|
@@ -760,6 +770,12 @@ main(int argc, /* I - Number of comm
|
2011-07-04 20:04:49 +00:00
|
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|
#endif /* HAVE_LAUNCHD */
|
|
|
|
|
|
|
|
/*
|
|
|
|
+ * If we were started by systemd get the listen sockets file descriptors...
|
|
|
|
+ */
|
|
|
|
+
|
|
|
|
+ systemd_checkin();
|
|
|
|
+
|
|
|
|
+ /*
|
|
|
|
* Startup the server...
|
|
|
|
*/
|
|
|
|
|
2011-08-05 14:11:04 +00:00
|
|
|
@@ -1584,6 +1600,97 @@ launchd_checkout(void)
|
2011-07-04 20:04:49 +00:00
|
|
|
}
|
|
|
|
#endif /* HAVE_LAUNCHD */
|
|
|
|
|
|
|
|
+static void
|
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|
|
+systemd_checkin(void)
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|
+{
|
|
|
|
+ int n, fd;
|
|
|
|
+
|
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|
|
+ n = sd_listen_fds(1);
|
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|
|
+ if (n < 0)
|
|
|
|
+ {
|
|
|
|
+ cupsdLogMessage(CUPSD_LOG_ERROR,
|
|
|
|
+ "systemd_checkin: Failed to acquire sockets from systemd - %s",
|
|
|
|
+ strerror(-n));
|
|
|
|
+ exit(EXIT_FAILURE);
|
|
|
|
+ return;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ if (n == 0)
|
|
|
|
+ return;
|
|
|
|
+
|
|
|
|
+ for (fd = SD_LISTEN_FDS_START; fd < SD_LISTEN_FDS_START + n; fd ++)
|
|
|
|
+ {
|
|
|
|
+ http_addr_t addr;
|
|
|
|
+ socklen_t addrlen;
|
|
|
|
+ int r;
|
|
|
|
+ cupsd_listener_t *lis;
|
|
|
|
+ char s[256];
|
|
|
|
+
|
|
|
|
+ r = sd_is_socket(fd, AF_UNSPEC, SOCK_STREAM, 1);
|
|
|
|
+ if (r < 0) {
|
|
|
|
+ cupsdLogMessage(CUPSD_LOG_ERROR,
|
|
|
|
+ "systemd_checkin: Unable to verify socket type - %s",
|
|
|
|
+ strerror(-r));
|
|
|
|
+ continue;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ if (!r) {
|
|
|
|
+ cupsdLogMessage(CUPSD_LOG_ERROR,
|
|
|
|
+ "systemd_checkin: Socket not of the right type");
|
|
|
|
+ continue;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ if (getsockname(fd, (struct sockaddr*) &addr, &addrlen))
|
|
|
|
+ {
|
|
|
|
+ cupsdLogMessage(CUPSD_LOG_ERROR,
|
|
|
|
+ "systemd_checkin: Unable to get local address - %s",
|
|
|
|
+ strerror(errno));
|
|
|
|
+ continue;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /*
|
|
|
|
+ * Try to match the systemd socket address to one of the listeners...
|
|
|
|
+ */
|
|
|
|
+
|
|
|
|
+ for (lis = (cupsd_listener_t *)cupsArrayFirst(Listeners);
|
|
|
|
+ lis;
|
|
|
|
+ lis = (cupsd_listener_t *)cupsArrayNext(Listeners))
|
|
|
|
+ if (httpAddrEqual(&lis->address, &addr))
|
|
|
|
+ break;
|
|
|
|
+
|
|
|
|
+ if (lis)
|
|
|
|
+ {
|
|
|
|
+ cupsdLogMessage(CUPSD_LOG_DEBUG,
|
|
|
|
+ "systemd_checkin: Matched existing listener %s with fd %d...",
|
|
|
|
+ httpAddrString(&(lis->address), s, sizeof(s)), fd);
|
|
|
|
+ }
|
|
|
|
+ else
|
|
|
|
+ {
|
|
|
|
+ cupsdLogMessage(CUPSD_LOG_DEBUG,
|
|
|
|
+ "systemd_checkin: Adding new listener %s with fd %d...",
|
|
|
|
+ httpAddrString(&addr, s, sizeof(s)), fd);
|
|
|
|
+
|
|
|
|
+ if ((lis = calloc(1, sizeof(cupsd_listener_t))) == NULL)
|
|
|
|
+ {
|
|
|
|
+ cupsdLogMessage(CUPSD_LOG_ERROR,
|
|
|
|
+ "systemd_checkin: Unable to allocate listener - "
|
|
|
|
+ "%s.", strerror(errno));
|
|
|
|
+ exit(EXIT_FAILURE);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ cupsArrayAdd(Listeners, lis);
|
|
|
|
+
|
|
|
|
+ memcpy(&lis->address, &addr, sizeof(lis->address));
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ lis->fd = fd;
|
|
|
|
+
|
|
|
|
+# ifdef HAVE_SSL
|
|
|
|
+ if (_httpAddrPort(&(lis->address)) == 443)
|
|
|
|
+ lis->encryption = HTTP_ENCRYPT_ALWAYS;
|
|
|
|
+# endif /* HAVE_SSL */
|
|
|
|
+ }
|
|
|
|
+}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* 'parent_handler()' - Catch USR1/CHLD signals...
|
2011-08-05 14:11:04 +00:00
|
|
|
diff -up cups-1.5.0/scheduler/Makefile.systemd-socket cups-1.5.0/scheduler/Makefile
|
|
|
|
--- cups-1.5.0/scheduler/Makefile.systemd-socket 2011-08-05 15:08:39.765432815 +0100
|
|
|
|
+++ cups-1.5.0/scheduler/Makefile 2011-08-05 15:09:22.170268932 +0100
|
|
|
|
@@ -41,6 +41,7 @@ CUPSDOBJS = \
|
|
|
|
server.o \
|
|
|
|
statbuf.o \
|
|
|
|
subscriptions.o \
|
|
|
|
+ sd-daemon.o \
|
|
|
|
sysman.o \
|
|
|
|
timeout.o
|
|
|
|
LIBOBJS = \
|
|
|
|
@@ -571,6 +572,14 @@ sloc:
|
|
|
|
|
|
|
|
|
|
|
|
#
|
|
|
|
+# Update sd-daemon.[ch] drop-in file from upstream git
|
|
|
|
+#
|
|
|
|
+
|
|
|
|
+update-systemd:
|
|
|
|
+ curl http://cgit.freedesktop.org/systemd/plain/src/sd-daemon.c > sd-daemon.c
|
|
|
|
+ curl http://cgit.freedesktop.org/systemd/plain/src/sd-daemon.h > sd-daemon.h
|
|
|
|
+
|
|
|
|
+#
|
|
|
|
# Dependencies...
|
|
|
|
#
|
|
|
|
|
|
|
|
diff -up cups-1.5.0/scheduler/sd-daemon.c.systemd-socket cups-1.5.0/scheduler/sd-daemon.c
|
|
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--- cups-1.5.0/scheduler/sd-daemon.c.systemd-socket 2011-08-05 15:09:00.796855594 +0100
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+++ cups-1.5.0/scheduler/sd-daemon.c 2011-08-05 15:09:00.796855594 +0100
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2011-07-04 20:04:49 +00:00
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@@ -0,0 +1,520 @@
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+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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+
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+/***
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+ Copyright 2010 Lennart Poettering
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+
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+ Permission is hereby granted, free of charge, to any person
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+ obtaining a copy of this software and associated documentation files
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+ (the "Software"), to deal in the Software without restriction,
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+ including without limitation the rights to use, copy, modify, merge,
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+ publish, distribute, sublicense, and/or sell copies of the Software,
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+ and to permit persons to whom the Software is furnished to do so,
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+ subject to the following conditions:
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+
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+ The above copyright notice and this permission notice shall be
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+ included in all copies or substantial portions of the Software.
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+
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+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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+ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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+ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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+ NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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+ BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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+ ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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+ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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+ SOFTWARE.
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+***/
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+
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+#ifndef _GNU_SOURCE
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+#define _GNU_SOURCE
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+#endif
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+
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+#include <sys/types.h>
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+#include <sys/stat.h>
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+#include <sys/socket.h>
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+#include <sys/un.h>
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+#include <sys/fcntl.h>
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+#include <netinet/in.h>
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+#include <stdlib.h>
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+#include <errno.h>
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+#include <unistd.h>
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+#include <string.h>
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+#include <stdarg.h>
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+#include <stdio.h>
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+#include <stddef.h>
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+#include <limits.h>
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+
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+#if defined(__linux__)
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+#include <mqueue.h>
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+#endif
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+
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+#include "sd-daemon.h"
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+
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+#if (__GNUC__ >= 4) && !defined(SD_EXPORT_SYMBOLS)
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+#define _sd_hidden_ __attribute__ ((visibility("hidden")))
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+#else
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+#define _sd_hidden_
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+#endif
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+
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+_sd_hidden_ int sd_listen_fds(int unset_environment) {
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+
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+#if defined(DISABLE_SYSTEMD) || !defined(__linux__)
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+ return 0;
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+#else
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+ int r, fd;
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+ const char *e;
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+ char *p = NULL;
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+ unsigned long l;
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+
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+ if (!(e = getenv("LISTEN_PID"))) {
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+ r = 0;
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+ goto finish;
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+ }
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+
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+ errno = 0;
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+ l = strtoul(e, &p, 10);
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+
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+ if (errno != 0) {
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+ r = -errno;
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+ goto finish;
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+ }
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+
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+ if (!p || *p || l <= 0) {
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+ r = -EINVAL;
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+ goto finish;
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+ }
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+
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+ /* Is this for us? */
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+ if (getpid() != (pid_t) l) {
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+ r = 0;
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+ goto finish;
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+ }
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+
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+ if (!(e = getenv("LISTEN_FDS"))) {
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+ r = 0;
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+ goto finish;
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+ }
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+
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+ errno = 0;
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+ l = strtoul(e, &p, 10);
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+
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+ if (errno != 0) {
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+ r = -errno;
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+ goto finish;
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+ }
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+
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+ if (!p || *p) {
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+ r = -EINVAL;
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+ goto finish;
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+ }
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+
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+ for (fd = SD_LISTEN_FDS_START; fd < SD_LISTEN_FDS_START + (int) l; fd ++) {
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+ int flags;
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+
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+ if ((flags = fcntl(fd, F_GETFD)) < 0) {
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+ r = -errno;
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+ goto finish;
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+ }
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+
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+ if (flags & FD_CLOEXEC)
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+ continue;
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+
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+ if (fcntl(fd, F_SETFD, flags | FD_CLOEXEC) < 0) {
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+ r = -errno;
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+ goto finish;
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+ }
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+ }
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+
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+ r = (int) l;
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+
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+finish:
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+ if (unset_environment) {
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+ unsetenv("LISTEN_PID");
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+ unsetenv("LISTEN_FDS");
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+ }
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+
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+ return r;
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+#endif
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+}
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+
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+_sd_hidden_ int sd_is_fifo(int fd, const char *path) {
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+ struct stat st_fd;
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+
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+ if (fd < 0)
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+ return -EINVAL;
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+
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+ memset(&st_fd, 0, sizeof(st_fd));
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+ if (fstat(fd, &st_fd) < 0)
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+ return -errno;
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+
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+ if (!S_ISFIFO(st_fd.st_mode))
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+ return 0;
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+
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+ if (path) {
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+ struct stat st_path;
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+
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+ memset(&st_path, 0, sizeof(st_path));
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+ if (stat(path, &st_path) < 0) {
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+
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+ if (errno == ENOENT || errno == ENOTDIR)
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+ return 0;
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+
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+ return -errno;
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+ }
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+
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+ return
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+ st_path.st_dev == st_fd.st_dev &&
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+ st_path.st_ino == st_fd.st_ino;
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+ }
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+
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+ return 1;
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+}
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+
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+_sd_hidden_ int sd_is_special(int fd, const char *path) {
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+ struct stat st_fd;
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+
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+ if (fd < 0)
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+ return -EINVAL;
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+
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+ if (fstat(fd, &st_fd) < 0)
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+ return -errno;
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+
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+ if (!S_ISREG(st_fd.st_mode) && !S_ISCHR(st_fd.st_mode))
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+ return 0;
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+
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+ if (path) {
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+ struct stat st_path;
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+
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+ if (stat(path, &st_path) < 0) {
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+
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+ if (errno == ENOENT || errno == ENOTDIR)
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+ return 0;
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+
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+ return -errno;
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+ }
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+
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+ if (S_ISREG(st_fd.st_mode) && S_ISREG(st_path.st_mode))
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+ return
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+ st_path.st_dev == st_fd.st_dev &&
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+ st_path.st_ino == st_fd.st_ino;
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+ else if (S_ISCHR(st_fd.st_mode) && S_ISCHR(st_path.st_mode))
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+ return st_path.st_rdev == st_fd.st_rdev;
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+ else
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+ return 0;
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+ }
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+
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+ return 1;
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+}
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+
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+static int sd_is_socket_internal(int fd, int type, int listening) {
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+ struct stat st_fd;
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+
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+ if (fd < 0 || type < 0)
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+ return -EINVAL;
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+
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+ if (fstat(fd, &st_fd) < 0)
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+ return -errno;
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+
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+ if (!S_ISSOCK(st_fd.st_mode))
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+ return 0;
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+
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+ if (type != 0) {
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+ int other_type = 0;
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+ socklen_t l = sizeof(other_type);
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+
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+ if (getsockopt(fd, SOL_SOCKET, SO_TYPE, &other_type, &l) < 0)
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+ return -errno;
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+
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+ if (l != sizeof(other_type))
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+ return -EINVAL;
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+
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+ if (other_type != type)
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+ return 0;
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+ }
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+
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+ if (listening >= 0) {
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+ int accepting = 0;
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+ socklen_t l = sizeof(accepting);
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+
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+ if (getsockopt(fd, SOL_SOCKET, SO_ACCEPTCONN, &accepting, &l) < 0)
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+ return -errno;
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+
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+ if (l != sizeof(accepting))
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+ return -EINVAL;
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+
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+ if (!accepting != !listening)
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+ return 0;
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+ }
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+
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+ return 1;
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+}
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+
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+union sockaddr_union {
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+ struct sockaddr sa;
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+ struct sockaddr_in in4;
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+ struct sockaddr_in6 in6;
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+ struct sockaddr_un un;
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+ struct sockaddr_storage storage;
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+};
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+
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+_sd_hidden_ int sd_is_socket(int fd, int family, int type, int listening) {
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+ int r;
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+
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+ if (family < 0)
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+ return -EINVAL;
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+
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+ if ((r = sd_is_socket_internal(fd, type, listening)) <= 0)
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+ return r;
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+
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+ if (family > 0) {
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+ union sockaddr_union sockaddr;
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+ socklen_t l;
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+
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+ memset(&sockaddr, 0, sizeof(sockaddr));
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+ l = sizeof(sockaddr);
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+
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+ if (getsockname(fd, &sockaddr.sa, &l) < 0)
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+ return -errno;
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+
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+ if (l < sizeof(sa_family_t))
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+ return -EINVAL;
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+
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+ return sockaddr.sa.sa_family == family;
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+ }
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+
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+ return 1;
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+}
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+
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+_sd_hidden_ int sd_is_socket_inet(int fd, int family, int type, int listening, uint16_t port) {
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+ union sockaddr_union sockaddr;
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+ socklen_t l;
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+ int r;
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+
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+ if (family != 0 && family != AF_INET && family != AF_INET6)
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+ return -EINVAL;
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+
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+ if ((r = sd_is_socket_internal(fd, type, listening)) <= 0)
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+ return r;
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+
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+ memset(&sockaddr, 0, sizeof(sockaddr));
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+ l = sizeof(sockaddr);
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+
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+ if (getsockname(fd, &sockaddr.sa, &l) < 0)
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+ return -errno;
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+
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+ if (l < sizeof(sa_family_t))
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+ return -EINVAL;
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+
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+ if (sockaddr.sa.sa_family != AF_INET &&
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+ sockaddr.sa.sa_family != AF_INET6)
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+ return 0;
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+
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+ if (family > 0)
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+ if (sockaddr.sa.sa_family != family)
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+ return 0;
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+
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+ if (port > 0) {
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+ if (sockaddr.sa.sa_family == AF_INET) {
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+ if (l < sizeof(struct sockaddr_in))
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+ return -EINVAL;
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+
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+ return htons(port) == sockaddr.in4.sin_port;
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+ } else {
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+ if (l < sizeof(struct sockaddr_in6))
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+ return -EINVAL;
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+
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+ return htons(port) == sockaddr.in6.sin6_port;
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+ }
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+ }
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+
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+ return 1;
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+}
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+
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+_sd_hidden_ int sd_is_socket_unix(int fd, int type, int listening, const char *path, size_t length) {
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+ union sockaddr_union sockaddr;
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+ socklen_t l;
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+ int r;
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+
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+ if ((r = sd_is_socket_internal(fd, type, listening)) <= 0)
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+ return r;
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+
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+ memset(&sockaddr, 0, sizeof(sockaddr));
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+ l = sizeof(sockaddr);
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+
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+ if (getsockname(fd, &sockaddr.sa, &l) < 0)
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+ return -errno;
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+
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+ if (l < sizeof(sa_family_t))
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+ return -EINVAL;
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+
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+ if (sockaddr.sa.sa_family != AF_UNIX)
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+ return 0;
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+
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+ if (path) {
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+ if (length <= 0)
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+ length = strlen(path);
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+
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+ if (length <= 0)
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+ /* Unnamed socket */
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+ return l == offsetof(struct sockaddr_un, sun_path);
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+
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+ if (path[0])
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+ /* Normal path socket */
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+ return
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|
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+ (l >= offsetof(struct sockaddr_un, sun_path) + length + 1) &&
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+ memcmp(path, sockaddr.un.sun_path, length+1) == 0;
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+ else
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|
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+ /* Abstract namespace socket */
|
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+ return
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|
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+ (l == offsetof(struct sockaddr_un, sun_path) + length) &&
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+ memcmp(path, sockaddr.un.sun_path, length) == 0;
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|
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+ }
|
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+
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|
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+ return 1;
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+}
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|
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+
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|
|
+_sd_hidden_ int sd_is_mq(int fd, const char *path) {
|
|
|
|
+#if !defined(__linux__)
|
|
|
|
+ return 0;
|
|
|
|
+#else
|
|
|
|
+ struct mq_attr attr;
|
|
|
|
+
|
|
|
|
+ if (fd < 0)
|
|
|
|
+ return -EINVAL;
|
|
|
|
+
|
|
|
|
+ if (mq_getattr(fd, &attr) < 0)
|
|
|
|
+ return -errno;
|
|
|
|
+
|
|
|
|
+ if (path) {
|
|
|
|
+ char fpath[PATH_MAX];
|
|
|
|
+ struct stat a, b;
|
|
|
|
+
|
|
|
|
+ if (path[0] != '/')
|
|
|
|
+ return -EINVAL;
|
|
|
|
+
|
|
|
|
+ if (fstat(fd, &a) < 0)
|
|
|
|
+ return -errno;
|
|
|
|
+
|
|
|
|
+ strncpy(stpcpy(fpath, "/dev/mqueue"), path, sizeof(fpath) - 12);
|
|
|
|
+ fpath[sizeof(fpath)-1] = 0;
|
|
|
|
+
|
|
|
|
+ if (stat(fpath, &b) < 0)
|
|
|
|
+ return -errno;
|
|
|
|
+
|
|
|
|
+ if (a.st_dev != b.st_dev ||
|
|
|
|
+ a.st_ino != b.st_ino)
|
|
|
|
+ return 0;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ return 1;
|
|
|
|
+#endif
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+_sd_hidden_ int sd_notify(int unset_environment, const char *state) {
|
|
|
|
+#if defined(DISABLE_SYSTEMD) || !defined(__linux__) || !defined(SOCK_CLOEXEC)
|
|
|
|
+ return 0;
|
|
|
|
+#else
|
|
|
|
+ int fd = -1, r;
|
|
|
|
+ struct msghdr msghdr;
|
|
|
|
+ struct iovec iovec;
|
|
|
|
+ union sockaddr_union sockaddr;
|
|
|
|
+ const char *e;
|
|
|
|
+
|
|
|
|
+ if (!state) {
|
|
|
|
+ r = -EINVAL;
|
|
|
|
+ goto finish;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ if (!(e = getenv("NOTIFY_SOCKET")))
|
|
|
|
+ return 0;
|
|
|
|
+
|
|
|
|
+ /* Must be an abstract socket, or an absolute path */
|
|
|
|
+ if ((e[0] != '@' && e[0] != '/') || e[1] == 0) {
|
|
|
|
+ r = -EINVAL;
|
|
|
|
+ goto finish;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ if ((fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0)) < 0) {
|
|
|
|
+ r = -errno;
|
|
|
|
+ goto finish;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ memset(&sockaddr, 0, sizeof(sockaddr));
|
|
|
|
+ sockaddr.sa.sa_family = AF_UNIX;
|
|
|
|
+ strncpy(sockaddr.un.sun_path, e, sizeof(sockaddr.un.sun_path));
|
|
|
|
+
|
|
|
|
+ if (sockaddr.un.sun_path[0] == '@')
|
|
|
|
+ sockaddr.un.sun_path[0] = 0;
|
|
|
|
+
|
|
|
|
+ memset(&iovec, 0, sizeof(iovec));
|
|
|
|
+ iovec.iov_base = (char*) state;
|
|
|
|
+ iovec.iov_len = strlen(state);
|
|
|
|
+
|
|
|
|
+ memset(&msghdr, 0, sizeof(msghdr));
|
|
|
|
+ msghdr.msg_name = &sockaddr;
|
|
|
|
+ msghdr.msg_namelen = offsetof(struct sockaddr_un, sun_path) + strlen(e);
|
|
|
|
+
|
|
|
|
+ if (msghdr.msg_namelen > sizeof(struct sockaddr_un))
|
|
|
|
+ msghdr.msg_namelen = sizeof(struct sockaddr_un);
|
|
|
|
+
|
|
|
|
+ msghdr.msg_iov = &iovec;
|
|
|
|
+ msghdr.msg_iovlen = 1;
|
|
|
|
+
|
|
|
|
+ if (sendmsg(fd, &msghdr, MSG_NOSIGNAL) < 0) {
|
|
|
|
+ r = -errno;
|
|
|
|
+ goto finish;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ r = 1;
|
|
|
|
+
|
|
|
|
+finish:
|
|
|
|
+ if (unset_environment)
|
|
|
|
+ unsetenv("NOTIFY_SOCKET");
|
|
|
|
+
|
|
|
|
+ if (fd >= 0)
|
|
|
|
+ close(fd);
|
|
|
|
+
|
|
|
|
+ return r;
|
|
|
|
+#endif
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+_sd_hidden_ int sd_notifyf(int unset_environment, const char *format, ...) {
|
|
|
|
+#if defined(DISABLE_SYSTEMD) || !defined(__linux__)
|
|
|
|
+ return 0;
|
|
|
|
+#else
|
|
|
|
+ va_list ap;
|
|
|
|
+ char *p = NULL;
|
|
|
|
+ int r;
|
|
|
|
+
|
|
|
|
+ va_start(ap, format);
|
|
|
|
+ r = vasprintf(&p, format, ap);
|
|
|
|
+ va_end(ap);
|
|
|
|
+
|
|
|
|
+ if (r < 0 || !p)
|
|
|
|
+ return -ENOMEM;
|
|
|
|
+
|
|
|
|
+ r = sd_notify(unset_environment, p);
|
|
|
|
+ free(p);
|
|
|
|
+
|
|
|
|
+ return r;
|
|
|
|
+#endif
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+_sd_hidden_ int sd_booted(void) {
|
|
|
|
+#if defined(DISABLE_SYSTEMD) || !defined(__linux__)
|
|
|
|
+ return 0;
|
|
|
|
+#else
|
|
|
|
+
|
|
|
|
+ struct stat a, b;
|
|
|
|
+
|
|
|
|
+ /* We simply test whether the systemd cgroup hierarchy is
|
|
|
|
+ * mounted */
|
|
|
|
+
|
|
|
|
+ if (lstat("/sys/fs/cgroup", &a) < 0)
|
|
|
|
+ return 0;
|
|
|
|
+
|
|
|
|
+ if (lstat("/sys/fs/cgroup/systemd", &b) < 0)
|
|
|
|
+ return 0;
|
|
|
|
+
|
|
|
|
+ return a.st_dev != b.st_dev;
|
|
|
|
+#endif
|
|
|
|
+}
|
2011-08-05 14:11:04 +00:00
|
|
|
diff -up cups-1.5.0/scheduler/sd-daemon.h.systemd-socket cups-1.5.0/scheduler/sd-daemon.h
|
|
|
|
--- cups-1.5.0/scheduler/sd-daemon.h.systemd-socket 2011-08-05 15:09:00.797855566 +0100
|
|
|
|
+++ cups-1.5.0/scheduler/sd-daemon.h 2011-08-05 15:09:00.797855566 +0100
|
2011-07-04 20:04:49 +00:00
|
|
|
@@ -0,0 +1,277 @@
|
|
|
|
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
|
|
|
|
+
|
|
|
|
+#ifndef foosddaemonhfoo
|
|
|
|
+#define foosddaemonhfoo
|
|
|
|
+
|
|
|
|
+/***
|
|
|
|
+ Copyright 2010 Lennart Poettering
|
|
|
|
+
|
|
|
|
+ Permission is hereby granted, free of charge, to any person
|
|
|
|
+ obtaining a copy of this software and associated documentation files
|
|
|
|
+ (the "Software"), to deal in the Software without restriction,
|
|
|
|
+ including without limitation the rights to use, copy, modify, merge,
|
|
|
|
+ publish, distribute, sublicense, and/or sell copies of the Software,
|
|
|
|
+ and to permit persons to whom the Software is furnished to do so,
|
|
|
|
+ subject to the following conditions:
|
|
|
|
+
|
|
|
|
+ The above copyright notice and this permission notice shall be
|
|
|
|
+ included in all copies or substantial portions of the Software.
|
|
|
|
+
|
|
|
|
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
|
|
+ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
|
|
+ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
|
|
+ NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
|
|
|
+ BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
|
|
|
+ ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
|
|
|
+ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
|
|
+ SOFTWARE.
|
|
|
|
+***/
|
|
|
|
+
|
|
|
|
+#include <sys/types.h>
|
|
|
|
+#include <inttypes.h>
|
|
|
|
+
|
|
|
|
+#ifdef __cplusplus
|
|
|
|
+extern "C" {
|
|
|
|
+#endif
|
|
|
|
+
|
|
|
|
+/*
|
|
|
|
+ Reference implementation of a few systemd related interfaces for
|
|
|
|
+ writing daemons. These interfaces are trivial to implement. To
|
|
|
|
+ simplify porting we provide this reference implementation.
|
|
|
|
+ Applications are welcome to reimplement the algorithms described
|
|
|
|
+ here if they do not want to include these two source files.
|
|
|
|
+
|
|
|
|
+ The following functionality is provided:
|
|
|
|
+
|
|
|
|
+ - Support for logging with log levels on stderr
|
|
|
|
+ - File descriptor passing for socket-based activation
|
|
|
|
+ - Daemon startup and status notification
|
|
|
|
+ - Detection of systemd boots
|
|
|
|
+
|
|
|
|
+ You may compile this with -DDISABLE_SYSTEMD to disable systemd
|
|
|
|
+ support. This makes all those calls NOPs that are directly related to
|
|
|
|
+ systemd (i.e. only sd_is_xxx() will stay useful).
|
|
|
|
+
|
|
|
|
+ Since this is drop-in code we don't want any of our symbols to be
|
|
|
|
+ exported in any case. Hence we declare hidden visibility for all of
|
|
|
|
+ them.
|
|
|
|
+
|
|
|
|
+ You may find an up-to-date version of these source files online:
|
|
|
|
+
|
|
|
|
+ http://cgit.freedesktop.org/systemd/plain/src/sd-daemon.h
|
|
|
|
+ http://cgit.freedesktop.org/systemd/plain/src/sd-daemon.c
|
|
|
|
+
|
|
|
|
+ This should compile on non-Linux systems, too, but with the
|
|
|
|
+ exception of the sd_is_xxx() calls all functions will become NOPs.
|
|
|
|
+
|
|
|
|
+ See sd-daemon(7) for more information.
|
|
|
|
+*/
|
|
|
|
+
|
|
|
|
+#ifndef _sd_printf_attr_
|
|
|
|
+#if __GNUC__ >= 4
|
|
|
|
+#define _sd_printf_attr_(a,b) __attribute__ ((format (printf, a, b)))
|
|
|
|
+#else
|
|
|
|
+#define _sd_printf_attr_(a,b)
|
|
|
|
+#endif
|
|
|
|
+#endif
|
|
|
|
+
|
|
|
|
+/*
|
|
|
|
+ Log levels for usage on stderr:
|
|
|
|
+
|
|
|
|
+ fprintf(stderr, SD_NOTICE "Hello World!\n");
|
|
|
|
+
|
|
|
|
+ This is similar to printk() usage in the kernel.
|
|
|
|
+*/
|
|
|
|
+#define SD_EMERG "<0>" /* system is unusable */
|
|
|
|
+#define SD_ALERT "<1>" /* action must be taken immediately */
|
|
|
|
+#define SD_CRIT "<2>" /* critical conditions */
|
|
|
|
+#define SD_ERR "<3>" /* error conditions */
|
|
|
|
+#define SD_WARNING "<4>" /* warning conditions */
|
|
|
|
+#define SD_NOTICE "<5>" /* normal but significant condition */
|
|
|
|
+#define SD_INFO "<6>" /* informational */
|
|
|
|
+#define SD_DEBUG "<7>" /* debug-level messages */
|
|
|
|
+
|
|
|
|
+/* The first passed file descriptor is fd 3 */
|
|
|
|
+#define SD_LISTEN_FDS_START 3
|
|
|
|
+
|
|
|
|
+/*
|
|
|
|
+ Returns how many file descriptors have been passed, or a negative
|
|
|
|
+ errno code on failure. Optionally, removes the $LISTEN_FDS and
|
|
|
|
+ $LISTEN_PID file descriptors from the environment (recommended, but
|
|
|
|
+ problematic in threaded environments). If r is the return value of
|
|
|
|
+ this function you'll find the file descriptors passed as fds
|
|
|
|
+ SD_LISTEN_FDS_START to SD_LISTEN_FDS_START+r-1. Returns a negative
|
|
|
|
+ errno style error code on failure. This function call ensures that
|
|
|
|
+ the FD_CLOEXEC flag is set for the passed file descriptors, to make
|
|
|
|
+ sure they are not passed on to child processes. If FD_CLOEXEC shall
|
|
|
|
+ not be set, the caller needs to unset it after this call for all file
|
|
|
|
+ descriptors that are used.
|
|
|
|
+
|
|
|
|
+ See sd_listen_fds(3) for more information.
|
|
|
|
+*/
|
|
|
|
+int sd_listen_fds(int unset_environment);
|
|
|
|
+
|
|
|
|
+/*
|
|
|
|
+ Helper call for identifying a passed file descriptor. Returns 1 if
|
|
|
|
+ the file descriptor is a FIFO in the file system stored under the
|
|
|
|
+ specified path, 0 otherwise. If path is NULL a path name check will
|
|
|
|
+ not be done and the call only verifies if the file descriptor
|
|
|
|
+ refers to a FIFO. Returns a negative errno style error code on
|
|
|
|
+ failure.
|
|
|
|
+
|
|
|
|
+ See sd_is_fifo(3) for more information.
|
|
|
|
+*/
|
|
|
|
+int sd_is_fifo(int fd, const char *path);
|
|
|
|
+
|
|
|
|
+/*
|
|
|
|
+ Helper call for identifying a passed file descriptor. Returns 1 if
|
|
|
|
+ the file descriptor is a special character device on the file
|
|
|
|
+ system stored under the specified path, 0 otherwise.
|
|
|
|
+ If path is NULL a path name check will not be done and the call
|
|
|
|
+ only verifies if the file descriptor refers to a special character.
|
|
|
|
+ Returns a negative errno style error code on failure.
|
|
|
|
+
|
|
|
|
+ See sd_is_special(3) for more information.
|
|
|
|
+*/
|
|
|
|
+int sd_is_special(int fd, const char *path);
|
|
|
|
+
|
|
|
|
+/*
|
|
|
|
+ Helper call for identifying a passed file descriptor. Returns 1 if
|
|
|
|
+ the file descriptor is a socket of the specified family (AF_INET,
|
|
|
|
+ ...) and type (SOCK_DGRAM, SOCK_STREAM, ...), 0 otherwise. If
|
|
|
|
+ family is 0 a socket family check will not be done. If type is 0 a
|
|
|
|
+ socket type check will not be done and the call only verifies if
|
|
|
|
+ the file descriptor refers to a socket. If listening is > 0 it is
|
|
|
|
+ verified that the socket is in listening mode. (i.e. listen() has
|
|
|
|
+ been called) If listening is == 0 it is verified that the socket is
|
|
|
|
+ not in listening mode. If listening is < 0 no listening mode check
|
|
|
|
+ is done. Returns a negative errno style error code on failure.
|
|
|
|
+
|
|
|
|
+ See sd_is_socket(3) for more information.
|
|
|
|
+*/
|
|
|
|
+int sd_is_socket(int fd, int family, int type, int listening);
|
|
|
|
+
|
|
|
|
+/*
|
|
|
|
+ Helper call for identifying a passed file descriptor. Returns 1 if
|
|
|
|
+ the file descriptor is an Internet socket, of the specified family
|
|
|
|
+ (either AF_INET or AF_INET6) and the specified type (SOCK_DGRAM,
|
|
|
|
+ SOCK_STREAM, ...), 0 otherwise. If version is 0 a protocol version
|
|
|
|
+ check is not done. If type is 0 a socket type check will not be
|
|
|
|
+ done. If port is 0 a socket port check will not be done. The
|
|
|
|
+ listening flag is used the same way as in sd_is_socket(). Returns a
|
|
|
|
+ negative errno style error code on failure.
|
|
|
|
+
|
|
|
|
+ See sd_is_socket_inet(3) for more information.
|
|
|
|
+*/
|
|
|
|
+int sd_is_socket_inet(int fd, int family, int type, int listening, uint16_t port);
|
|
|
|
+
|
|
|
|
+/*
|
|
|
|
+ Helper call for identifying a passed file descriptor. Returns 1 if
|
|
|
|
+ the file descriptor is an AF_UNIX socket of the specified type
|
|
|
|
+ (SOCK_DGRAM, SOCK_STREAM, ...) and path, 0 otherwise. If type is 0
|
|
|
|
+ a socket type check will not be done. If path is NULL a socket path
|
|
|
|
+ check will not be done. For normal AF_UNIX sockets set length to
|
|
|
|
+ 0. For abstract namespace sockets set length to the length of the
|
|
|
|
+ socket name (including the initial 0 byte), and pass the full
|
|
|
|
+ socket path in path (including the initial 0 byte). The listening
|
|
|
|
+ flag is used the same way as in sd_is_socket(). Returns a negative
|
|
|
|
+ errno style error code on failure.
|
|
|
|
+
|
|
|
|
+ See sd_is_socket_unix(3) for more information.
|
|
|
|
+*/
|
|
|
|
+int sd_is_socket_unix(int fd, int type, int listening, const char *path, size_t length);
|
|
|
|
+
|
|
|
|
+/*
|
|
|
|
+ Helper call for identifying a passed file descriptor. Returns 1 if
|
|
|
|
+ the file descriptor is a POSIX Message Queue of the specified name,
|
|
|
|
+ 0 otherwise. If path is NULL a message queue name check is not
|
|
|
|
+ done. Returns a negative errno style error code on failure.
|
|
|
|
+*/
|
|
|
|
+int sd_is_mq(int fd, const char *path);
|
|
|
|
+
|
|
|
|
+/*
|
|
|
|
+ Informs systemd about changed daemon state. This takes a number of
|
|
|
|
+ newline separated environment-style variable assignments in a
|
|
|
|
+ string. The following variables are known:
|
|
|
|
+
|
|
|
|
+ READY=1 Tells systemd that daemon startup is finished (only
|
|
|
|
+ relevant for services of Type=notify). The passed
|
|
|
|
+ argument is a boolean "1" or "0". Since there is
|
|
|
|
+ little value in signaling non-readiness the only
|
|
|
|
+ value daemons should send is "READY=1".
|
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|
+
|
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|
|
+ STATUS=... Passes a single-line status string back to systemd
|
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|
|
+ that describes the daemon state. This is free-from
|
|
|
|
+ and can be used for various purposes: general state
|
|
|
|
+ feedback, fsck-like programs could pass completion
|
|
|
|
+ percentages and failing programs could pass a human
|
|
|
|
+ readable error message. Example: "STATUS=Completed
|
|
|
|
+ 66% of file system check..."
|
|
|
|
+
|
|
|
|
+ ERRNO=... If a daemon fails, the errno-style error code,
|
|
|
|
+ formatted as string. Example: "ERRNO=2" for ENOENT.
|
|
|
|
+
|
|
|
|
+ BUSERROR=... If a daemon fails, the D-Bus error-style error
|
|
|
|
+ code. Example: "BUSERROR=org.freedesktop.DBus.Error.TimedOut"
|
|
|
|
+
|
|
|
|
+ MAINPID=... The main pid of a daemon, in case systemd did not
|
|
|
|
+ fork off the process itself. Example: "MAINPID=4711"
|
|
|
|
+
|
|
|
|
+ Daemons can choose to send additional variables. However, it is
|
|
|
|
+ recommended to prefix variable names not listed above with X_.
|
|
|
|
+
|
|
|
|
+ Returns a negative errno-style error code on failure. Returns > 0
|
|
|
|
+ if systemd could be notified, 0 if it couldn't possibly because
|
|
|
|
+ systemd is not running.
|
|
|
|
+
|
|
|
|
+ Example: When a daemon finished starting up, it could issue this
|
|
|
|
+ call to notify systemd about it:
|
|
|
|
+
|
|
|
|
+ sd_notify(0, "READY=1");
|
|
|
|
+
|
|
|
|
+ See sd_notifyf() for more complete examples.
|
|
|
|
+
|
|
|
|
+ See sd_notify(3) for more information.
|
|
|
|
+*/
|
|
|
|
+int sd_notify(int unset_environment, const char *state);
|
|
|
|
+
|
|
|
|
+/*
|
|
|
|
+ Similar to sd_notify() but takes a format string.
|
|
|
|
+
|
|
|
|
+ Example 1: A daemon could send the following after initialization:
|
|
|
|
+
|
|
|
|
+ sd_notifyf(0, "READY=1\n"
|
|
|
|
+ "STATUS=Processing requests...\n"
|
|
|
|
+ "MAINPID=%lu",
|
|
|
|
+ (unsigned long) getpid());
|
|
|
|
+
|
|
|
|
+ Example 2: A daemon could send the following shortly before
|
|
|
|
+ exiting, on failure:
|
|
|
|
+
|
|
|
|
+ sd_notifyf(0, "STATUS=Failed to start up: %s\n"
|
|
|
|
+ "ERRNO=%i",
|
|
|
|
+ strerror(errno),
|
|
|
|
+ errno);
|
|
|
|
+
|
|
|
|
+ See sd_notifyf(3) for more information.
|
|
|
|
+*/
|
|
|
|
+int sd_notifyf(int unset_environment, const char *format, ...) _sd_printf_attr_(2,3);
|
|
|
|
+
|
|
|
|
+/*
|
|
|
|
+ Returns > 0 if the system was booted with systemd. Returns < 0 on
|
|
|
|
+ error. Returns 0 if the system was not booted with systemd. Note
|
|
|
|
+ that all of the functions above handle non-systemd boots just
|
|
|
|
+ fine. You should NOT protect them with a call to this function. Also
|
|
|
|
+ note that this function checks whether the system, not the user
|
|
|
|
+ session is controlled by systemd. However the functions above work
|
|
|
|
+ for both user and system services.
|
|
|
|
+
|
|
|
|
+ See sd_booted(3) for more information.
|
|
|
|
+*/
|
|
|
|
+int sd_booted(void);
|
|
|
|
+
|
|
|
|
+#ifdef __cplusplus
|
|
|
|
+}
|
|
|
|
+#endif
|
|
|
|
+
|
|
|
|
+#endif
|