Add an option to not actually run the power management scripts, and
when in debug mode send all error messages to stderr rather than to syslog(8).
This commit is contained in:
pgoyette
parent
473a16d6eb
commit
5702902fe1
@ -1,4 +1,4 @@
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.\" $NetBSD: powerd.8,v 1.22 2010/01/27 06:52:24 wiz Exp $
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.\" $NetBSD: powerd.8,v 1.23 2010/12/15 17:12:40 pgoyette Exp $
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.\"
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.\" Copyright (c) 2003 Wasabi Systems, Inc.
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.\" All rights reserved.
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@ -33,7 +33,7 @@
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.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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.\" POSSIBILITY OF SUCH DAMAGE.
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.\"
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.Dd January 26, 2010
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.Dd December 15, 2010
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.Dt POWERD 8
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.Os
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.Sh NAME
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@ -42,6 +42,7 @@
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.Sh SYNOPSIS
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.Nm
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.Op Fl d
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.Op Fl n
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.Sh DESCRIPTION
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.Nm
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acts upon power management events posted by the kernel's power management
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@ -58,9 +59,13 @@ supports the following option:
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.Bl -tag -width xxxx
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.It Fl d
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Enable debugging mode.
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Verbose messages will be sent to stderr and
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Verbose messages and all messages intended for
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.Xr syslog 8
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will be sent to stderr, and
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.Nm
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will stay in the foreground of the controlling terminal.
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.It Fl n
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Prevent execution of power management scripts.
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.El
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.Sh CONFIGURATION SCRIPTS
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All configuration of
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@ -1,4 +1,4 @@
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/* $NetBSD: powerd.c,v 1.14 2010/04/24 20:44:33 jruoho Exp $ */
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/* $NetBSD: powerd.c,v 1.15 2010/12/15 17:12:40 pgoyette Exp $ */
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/*
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* Copyright (c) 2003 Wasabi Systems, Inc.
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@ -39,6 +39,8 @@
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* Power management daemon for sysmon.
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*/
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#define SYSLOG_NAMES
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#include <sys/cdefs.h>
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#include <sys/param.h>
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#include <sys/event.h>
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@ -54,8 +56,10 @@
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#include <unistd.h>
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#include <util.h>
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#include <prop/proplib.h>
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#include <stdarg.h>
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#include <string.h>
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int debug;
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int debug, no_scripts;
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static int kq;
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@ -67,6 +71,7 @@ static struct kevent *allocchange(void);
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static int wait_for_events(struct kevent *, size_t);
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static void dispatch_dev_power(struct kevent *);
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static void dispatch_power_event_state_change(int, power_event_t *);
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static void powerd_log(int, const char *, ...);
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static const char *script_paths[] = {
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NULL,
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@ -83,12 +88,16 @@ main(int argc, char *argv[])
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setprogname(*argv);
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while ((ch = getopt(argc, argv, "d")) != -1) {
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while ((ch = getopt(argc, argv, "dn")) != -1) {
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switch (ch) {
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case 'd':
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debug = 1;
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break;
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case 'n':
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no_scripts = 1;
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break;
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default:
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usage();
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}
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@ -99,36 +108,40 @@ main(int argc, char *argv[])
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if (argc)
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usage();
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if (debug == 0)
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if (debug == 0) {
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(void)daemon(0, 0);
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openlog("powerd", LOG_PID | LOG_NOWAIT, LOG_DAEMON);
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(void)pidfile(NULL);
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}
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if ((kq = kqueue()) == -1) {
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syslog(LOG_ERR, "kqueue: %m");
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powerd_log(LOG_ERR, "kqueue: %s", strerror(errno));
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exit(EX_OSERR);
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}
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if ((fd = open(_PATH_POWER, O_RDONLY|O_NONBLOCK, 0600)) == -1) {
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syslog(LOG_ERR, "open %s: %m", _PATH_POWER);
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powerd_log(LOG_ERR, "open %s: %s", _PATH_POWER,
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strerror(errno));
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exit(EX_OSERR);
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}
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if (fcntl(fd, F_SETFD, FD_CLOEXEC) == -1) {
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syslog(LOG_ERR, "Cannot set close on exec in power fd: %m");
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powerd_log(LOG_ERR, "Cannot set close on exec in power fd: %s",
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strerror(errno));
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exit(EX_OSERR);
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}
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if (ioctl(fd, POWER_IOC_GET_TYPE, &power_type) == -1) {
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syslog(LOG_ERR, "POWER_IOC_GET_TYPE: %m");
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powerd_log(LOG_ERR, "POWER_IOC_GET_TYPE: %s", strerror(errno));
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exit(EX_OSERR);
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}
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(void)asprintf(&cp, "%s/%s", _PATH_POWERD_SCRIPTS,
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power_type.power_type);
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if (cp == NULL) {
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syslog(LOG_ERR, "allocating script path: %m");
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powerd_log(LOG_ERR, "allocating script path: %s",
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strerror(errno));
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exit(EX_OSERR);
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}
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script_paths[0] = cp;
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@ -153,7 +166,7 @@ static void
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usage(void)
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{
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(void)fprintf(stderr, "usage: %s [-d]\n", getprogname());
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(void)fprintf(stderr, "usage: %s [-dn]\n", getprogname());
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exit(EX_USAGE);
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}
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@ -173,16 +186,19 @@ run_script(const char *argv[])
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argv[0] = path;
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if (debug) {
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(void)fprintf(stderr, "running script: %s",
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argv[0]);
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(void)fprintf(stderr, "%srunning script: %s",
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no_scripts?"not ":"", argv[0]);
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for (j = 1; argv[j] != NULL; j++)
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(void)fprintf(stderr, " %s", argv[j]);
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(void)fprintf(stderr, "\n");
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}
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if (no_scripts != 0)
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return;
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switch ((pid = vfork())) {
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case -1:
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syslog(LOG_ERR, "fork to run script: %m");
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powerd_log(LOG_ERR, "fork to run script: %s",
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strerror(errno));
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return;
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case 0:
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@ -194,17 +210,18 @@ run_script(const char *argv[])
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default:
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/* Parent. */
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if (waitpid(pid, &status, 0) == -1) {
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syslog(LOG_ERR, "waitpid for %s: %m",
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path);
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powerd_log(LOG_ERR,
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"waitpid for %s: %s", path,
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strerror(errno));
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break;
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}
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if (WIFEXITED(status) &&
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WEXITSTATUS(status) != 0) {
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syslog(LOG_ERR,
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powerd_log(LOG_ERR,
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"%s exited with status %d",
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path, WEXITSTATUS(status));
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} else if (!WIFEXITED(status)) {
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syslog(LOG_ERR,
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powerd_log(LOG_ERR,
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"%s terminated abnormally", path);
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}
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break;
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@ -214,9 +231,7 @@ run_script(const char *argv[])
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}
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}
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syslog(LOG_ERR, "no script for %s", argv[0]);
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if (debug)
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(void)fprintf(stderr, "no script for %s\n", argv[0]);
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powerd_log(LOG_ERR, "no script for %s", argv[0]);
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}
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static struct kevent changebuf[8];
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@ -243,7 +258,7 @@ wait_for_events(struct kevent *events, size_t nevents)
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events, nevents, NULL)) < 0) {
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nchanges = 0;
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if (errno != EINTR) {
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syslog(LOG_ERR, "kevent: %m");
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powerd_log(LOG_ERR, "kevent: %s", strerror(errno));
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exit(EX_OSERR);
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}
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}
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@ -266,7 +281,8 @@ dispatch_dev_power(struct kevent *ev)
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if (read(fd, &pev, sizeof(pev)) != sizeof(pev)) {
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if (errno == EWOULDBLOCK)
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return;
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syslog(LOG_ERR, "read of %s: %m", _PATH_POWER);
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powerd_log(LOG_ERR, "read of %s: %s", _PATH_POWER,
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strerror(errno));
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exit(EX_OSERR);
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}
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@ -280,7 +296,7 @@ dispatch_dev_power(struct kevent *ev)
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dispatch_power_event_state_change(fd, &pev);
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break;
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default:
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syslog(LOG_INFO, "unknown %s event type: %d",
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powerd_log(LOG_INFO, "unknown %s event type: %d",
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_PATH_POWER, pev.pev_type);
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}
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@ -329,3 +345,23 @@ dispatch_power_event_state_change(int fd, power_event_t *pev)
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run_script(argv);
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}
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static void
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powerd_log(int pri, const char *msg, ...)
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{
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va_list arglist;
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unsigned int i;
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va_start(arglist, msg);
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if (debug == 0)
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vsyslog(pri, msg, arglist);
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else {
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for (i = 0; i < __arraycount(prioritynames); i++)
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if (prioritynames[i].c_val == pri)
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break;
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fprintf(stderr, "%s: ",
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(prioritynames[i].c_val == -1) ?
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"UNKNOWN" : prioritynames[i].c_name);
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vfprintf(stderr, msg, arglist);
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}
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}
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