openwrt/openwrt/package/nvram/src/wl.c

87 lines
1.7 KiB
C

/*
* Wireless network adapter utilities
*
* Copyright 2004, Broadcom Corporation
* All Rights Reserved.
*
* THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
* KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
* SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
*
* $Id$
*/
#include <string.h>
#include <typedefs.h>
#include <wlutils.h>
int
wl_probe(char *name)
{
int ret, val;
/* Check interface */
if ((ret = wl_ioctl(name, WLC_GET_MAGIC, &val, sizeof(val))))
return ret;
if (val != WLC_IOCTL_MAGIC)
return -1;
if ((ret = wl_ioctl(name, WLC_GET_VERSION, &val, sizeof(val))))
return ret;
if (val > WLC_IOCTL_VERSION)
return -1;
return ret;
}
int
wl_set_val(char *name, char *var, void *val, int len)
{
char buf[128];
int buf_len;
/* check for overflow */
if ((buf_len = strlen(var)) + 1 + len > sizeof(buf))
return -1;
strcpy(buf, var);
buf_len += 1;
/* append int value onto the end of the name string */
memcpy(&buf[buf_len], val, len);
buf_len += len;
return wl_ioctl(name, WLC_SET_VAR, buf, buf_len);
}
int
wl_get_val(char *name, char *var, void *val, int len)
{
char buf[128];
int ret;
/* check for overflow */
if (strlen(var) + 1 > sizeof(buf) || len > sizeof(buf))
return -1;
strcpy(buf, var);
if ((ret = wl_ioctl(name, WLC_GET_VAR, buf, sizeof(buf))))
return ret;
memcpy(val, buf, len);
return 0;
}
int
wl_set_int(char *name, char *var, int val)
{
return wl_set_val(name, var, &val, sizeof(val));
}
int
wl_get_int(char *name, char *var, int *val)
{
return wl_get_val(name, var, val, sizeof(*val));
}