Add make file and Create macro to enable local path of autorandr

[deb_pkgs/autorandr.git] / contrib / autorandr_launcher / autorandr_launcher.c

diff --git a/contrib/autorandr_launcher/autorandr_launcher.c b/contrib/autorandr_launcher/autorandr_launcher.c
index 385d16f9370a5acffa5499e55b6c01af145a8860..631c167f3669684a3323f107a1e229a235305fe4 100644 (file)
--- a/contrib/autorandr_launcher/autorandr_launcher.c
+++ b/contrib/autorandr_launcher/autorandr_launcher.c
@@ -10,6 +10,13 @@
 #include <sys/types.h>
 #include <sys/wait.h>
 #include <time.h>
+#include <inttypes.h>
+#include <errno.h>
+#include <string.h>
+
+#ifndef AUTORANDR_PATH
+#define AUTORANDR_PATH "/usr/bin/autorandr"
+#endif
 
 // indent -kr -i8
 static int VERBOSE = 0;
@@ -21,7 +28,7 @@ static void sigterm_handler(int signum)
        kill(getpid(), signum);
 }
 
-static void ar_log(const char *format, ...)
+__attribute__((format(printf, 1, 2))) static void ar_log(const char *format, ...)
 {
        va_list args;
 
@@ -33,13 +40,17 @@ static void ar_log(const char *format, ...)
        fflush(stdout);
 }
 
-static int ar_launch()
+static int ar_launch(void)
 {
        pid_t pid = fork();
        if (pid == 0) {
-               static char *argv[] =
-                   { "/usr/bin/autorandr", "--change", "--default", "default", NULL };
-               execve(argv[0], argv, environ);
+               static char *argv[] = { AUTORANDR_PATH, "--change", "--default", "default", NULL};
+               if (execve(argv[0], argv, environ) == -1) {
+               int errsv = errno;
+                       fprintf(stderr, "Error executing file: %s\n", strerror(errsv));
+                       exit(errsv);
+        }
+
                exit(127);
        } else {
                waitpid(pid, 0, 0);
@@ -147,10 +158,10 @@ int main(int argc, char **argv)
                        break;
                }
 
-               // ar_log("Event type: %" PRIu8 "\n", evt->response_type);
-               // ar_log("screen change masked: %" PRIu8 "\n",
-               //       evt->response_type &
-               //       XCB_RANDR_NOTIFY_MASK_SCREEN_CHANGE);
+               ar_log("Event type: %" PRIu8 "\n", evt->response_type);
+               ar_log("screen change masked: %" PRIu8 "\n",
+                     evt->response_type &
+                      XCB_RANDR_NOTIFY_MASK_SCREEN_CHANGE);
 
                if (evt->response_type &
                    XCB_RANDR_NOTIFY_MASK_SCREEN_CHANGE) {