diff options
| -rw-r--r-- | manpages/syndaemon.1 | 6 | ||||
| -rw-r--r-- | syndaemon.c | 30 |
2 files changed, 31 insertions, 5 deletions
diff --git a/manpages/syndaemon.1 b/manpages/syndaemon.1 index 670ccc2..60efadf 100644 --- a/manpages/syndaemon.1 +++ b/manpages/syndaemon.1 @@ -4,7 +4,7 @@ syndaemon \- a program that monitors keyboard activity and disables the touchpad when the keyboard is being used. .SH "SYNTAX" .LP -syndaemon [\fI\-i idle\-time\fP] +syndaemon [\fI\-i idle\-time\fP] [\fI\-d\fP] .SH "DESCRIPTION" .LP Disabling the touchpad while typing avoids unwanted movements of the pointer that could lead to giving focus to the wrong window. @@ -13,6 +13,10 @@ Disabling the touchpad while typing avoids unwanted movements of the pointer tha .TP \fB\-i\fR <\fIidle\-time\fP> How many seconds to wait after the last key press before enabling the touchpad. (default is 2s). +.LP +.TP +\fB\-d\fP +Start as a daemon, ie in the background. .SH "ENVIRONMENT VARIABLES" .LP .TP diff --git a/syndaemon.c b/syndaemon.c index 6bb050f..70d1e14 100644 --- a/syndaemon.c +++ b/syndaemon.c @@ -26,18 +26,21 @@ #include <sys/ipc.h> #include <sys/shm.h> #include <sys/time.h> +#include <sys/stat.h> #include "synaptics.h" static SynapticsSHM *synshm; static int pad_disabled; +static int background = 0; static void usage() { - fprintf(stderr, "Usage: syndaemon [-i idle-time]\n"); + fprintf(stderr, "Usage: syndaemon [-i idle-time] [-d]\n"); fprintf(stderr, " -i How many seconds to wait after the last key press before\n"); fprintf(stderr, " enabling the touchpad. (default is 2s)\n"); + fprintf(stderr, " -d Start as a daemon, ie in the background.\n"); exit(1); } @@ -138,13 +141,15 @@ static void main_loop(Display *display, double idle_time) if (current_time > last_activity + idle_time) { /* Enable touchpad */ if (pad_disabled) { - printf("Enable\n"); + if (!background) + printf("Enable\n"); synshm->touchpad_off = 0; pad_disabled = 0; } } else { /* Disable touchpad */ if (!pad_disabled && !synshm->touchpad_off) { - printf("Disable\n"); + if (!background) + printf("Disable\n"); pad_disabled = 1; synshm->touchpad_off = 1; } @@ -162,11 +167,14 @@ int main(int argc, char *argv[]) int shmid; /* Parse command line parameters */ - while ((c = getopt(argc, argv, "i:?")) != EOF) { + while ((c = getopt(argc, argv, "i:d?")) != EOF) { switch(c) { case 'i': idle_time = atof(optarg); break; + case 'd': + background = 1; + break; default: usage(); break; @@ -200,6 +208,20 @@ int main(int argc, char *argv[]) /* Install a signal handler to restore synaptics parameters on exit */ install_signal_handler(); + if (background) { + pid_t pid; + if ((pid = fork()) < 0) { + perror("fork"); + exit(3); + } else if (pid != 0) + exit(0); + + /* Child (daemon) is running here */ + setsid(); /* Become session leader */ + chdir("/"); /* In case the file system gets unmounted */ + umask(0); /* We don't want any surprises */ + } + /* Run the main loop */ main_loop(display, idle_time); |