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/*
* dev_d.c - dev.d/ multiplexer
*
* Copyright (C) 2004 Greg Kroah-Hartman <greg@kroah.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation version 2 of the License.
*/
/*
* This essentially emulates the following shell script logic in C:
* DIR="/etc/dev.d"
* export DEVNODE="whatever_dev_name_udev_just_gave"
* for I in "${DIR}/$DEVNODE/"*.dev "${DIR}/$1/"*.dev "${DIR}/default/"*.dev ; do
* if [ -f $I ]; then $I $1 ; fi
* done
* exit 1;
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>
#include "udev.h"
#include "udev_lib.h"
#include "logging.h"
#define DEVD_DIR "/etc/dev.d/"
#define DEVD_SUFFIX ".dev"
static int run_program(char *name)
{
pid_t pid;
dbg("running %s", name);
pid = fork();
switch (pid) {
case 0:
/* child */
execv(name, main_argv);
dbg("exec of child failed");
exit(1);
case -1:
dbg("fork of child failed");
break;
return -1;
default:
wait(NULL);
}
return 0;
}
/*
* runs files in these directories in order:
* <node name given by udev>/
* subsystem/
* default/
*/
void dev_d_send(struct udevice *dev, char *subsystem, char *devpath)
{
char dirname[256];
char devname[NAME_SIZE];
if (udev_dev_d == 0)
return;
if (dev->type == 'b' || dev->type == 'c') {
strfieldcpy(devname, udev_root);
strfieldcat(devname, dev->name);
} else if (dev->type == 'n') {
strfieldcpy(devname, dev->name);
setenv("DEVPATH", devpath, 1);
}
setenv("DEVNAME", devname, 1);
dbg("DEVNAME='%s'", devname);
strcpy(dirname, DEVD_DIR);
strfieldcat(dirname, dev->name);
call_foreach_file(run_program, dirname, DEVD_SUFFIX);
strcpy(dirname, DEVD_DIR);
strfieldcat(dirname, subsystem);
call_foreach_file(run_program, dirname, DEVD_SUFFIX);
strcpy(dirname, DEVD_DIR "default");
call_foreach_file(run_program, dirname, DEVD_SUFFIX);
}
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