2 * dev_d.c - dev.d/ multiplexer
4 * Copyright (C) 2004 Greg Kroah-Hartman <greg@kroah.com>
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation version 2 of the License.
12 * This essentially emulates the following shell script logic in C:
14 * export DEVNAME="whatever_dev_name_udev_just_gave"
15 * for I in "${DIR}/$DEVNAME/"*.dev "${DIR}/$1/"*.dev "${DIR}/default/"*.dev ; do
16 * if [ -f $I ]; then $I $1 ; fi
24 #include <sys/types.h>
31 #define DEVD_DIR "/etc/dev.d/"
32 #define DEVD_SUFFIX ".dev"
34 static int run_program(char *name)
38 dbg("running %s", name);
44 execv(name, main_argv);
45 dbg("exec of child failed");
48 dbg("fork of child failed");
59 * runs files in these directories in order:
60 * <node name given by udev>/
64 void dev_d_send(struct udevice *dev, const char *subsystem, const char *devpath)
67 char env_devname[NAME_SIZE];
74 memset(env_devname, 0x00, sizeof(env_devname));
75 if (dev->type == 'b' || dev->type == 'c') {
76 strfieldcpy(env_devname, udev_root);
77 strfieldcat(env_devname, dev->name);
78 } else if (dev->type == 'n') {
79 strfieldcpy(env_devname, dev->name);
80 setenv("DEVPATH", devpath, 1);
82 setenv("DEVNAME", env_devname, 1);
83 dbg("DEVNAME='%s'", env_devname);
85 devname = strdup(dev->name);
91 /* Chop the device name up into pieces based on '/' */
92 temp = strchr(devname, '/');
93 while (temp != NULL) {
95 strcpy(dirname, DEVD_DIR);
96 strfieldcat(dirname, devname);
97 call_foreach_file(run_program, dirname, DEVD_SUFFIX);
101 temp = strchr(temp, '/');
104 strcpy(dirname, DEVD_DIR);
105 strfieldcat(dirname, dev->name);
106 call_foreach_file(run_program, dirname, DEVD_SUFFIX);
108 strcpy(dirname, DEVD_DIR);
109 strfieldcat(dirname, subsystem);
110 call_foreach_file(run_program, dirname, DEVD_SUFFIX);
112 strcpy(dirname, DEVD_DIR "default");
113 call_foreach_file(run_program, dirname, DEVD_SUFFIX);