[PATCH] wait() for specific pid to return from fork().

[elogind.git] / dev_d.c

diff --git a/dev_d.c b/dev_d.c
index 5580b5a3627ea09ee59ed9acd47000cc0190d750..64c254424867a63eefb5986a99acf029cc19e73e 100644 (file)
--- a/dev_d.c
+++ b/dev_d.c
@@ -62,13 +62,13 @@ static int run_program(char *name)
 
                execv(name, argv);
                dbg("exec of child failed");
-               exit(1);
+               _exit(1);
        case -1:
                dbg("fork of child failed");
                break;
                return -1;
        default:
-               wait(NULL);
+               waitpid(pid, NULL, 0);
        }
 
        return 0;
@@ -80,42 +80,35 @@ static int run_program(char *name)
  *     subsystem/
  *     default/
  */
-void dev_d_send(struct udevice *udev)
+void dev_d_execute(struct udevice *udev)
 {
-       char dirname[256];
-       char env_devname[NAME_SIZE];
-       char *devname;
+       char dirname[PATH_MAX];
+       char devname[NAME_SIZE];
        char *temp;
 
+       /* skip if UDEV_NO_DEVD is set */
        if (udev_dev_d == 0)
                return;
 
-       memset(env_devname, 0x00, sizeof(env_devname));
-       if (udev->type == 'b' || udev->type == 'c') {
-               strfieldcpy(env_devname, udev_root);
-               strfieldcat(env_devname, udev->name);
-       } else if (udev->type == 'n') {
-               strfieldcpy(env_devname, udev->name);
-               setenv("DEVPATH", udev->devpath, 1);
-       }
-       setenv("DEVNAME", env_devname, 1);
-       dbg("DEVNAME='%s'", env_devname);
-
-       devname = strdup(udev->name);
-       if (!devname) {
-               dbg("out of memory");
+       /* skip if udev did nothing, like unchanged netif or no "dev" file */
+       if (udev->devname[0] == '\0')
                return;
-       }
+
+       /* add the node name or the netif name to the environment */
+       setenv("DEVNAME", udev->devname, 1);
+       dbg("DEVNAME='%s'", udev->devname);
+
+       strfieldcpy(devname, udev->name);
 
        /* Chop the device name up into pieces based on '/' */
        temp = strchr(devname, '/');
        while (temp != NULL) {
-               *temp = 0x00;
+               temp[0] = '\0';
                strcpy(dirname, DEVD_DIR);
                strfieldcat(dirname, devname);
                call_foreach_file(run_program, dirname, DEVD_SUFFIX);
 
-               *temp = '/';
+               temp[0] = '/';
                ++temp;
                temp = strchr(temp, '/');
        }