81 lines
1.3 KiB
C
81 lines
1.3 KiB
C
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/*
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* This code reads the /proc/driver/poldhu/eth# file for the No Wires Needed poldhu
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* cards. Since there seems to be no official range for the 'Quality' value I assume
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* it's between 0 and 15, and multiply by 4 to get the range 0-63...
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*
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* $Id: nwn.c,v 1.2 2002/09/15 14:31:41 ico Exp $
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*
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*/
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#ifdef ENABLE_NWN_SUPPORT
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#include <stdio.h>
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#include <string.h>
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#define POLDHUPATH "/proc/driver/poldhu/%s"
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#define SWALLOWPATH "/proc/driver/swallow/%s"
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int nwn_get_link(char *ifname)
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{
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FILE *f;
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char buf[256];
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char *key, *val;
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char *p;
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char bssid[32] = "";
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int inbssid = 0;
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int link = 0;
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sprintf(buf, POLDHUPATH, ifname);
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f = fopen(buf, "r");
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if(f == NULL) {
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sprintf(buf, SWALLOWPATH, ifname);
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f = fopen(buf, "r");
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}
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if(f == NULL) {
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return(0);
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}
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while(fgets(buf, sizeof(buf), f)) {
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p = strchr(buf, '\n');
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if(p) *p=0;
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p = strchr(buf, ':');
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if(p) {
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*p=0;
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key = buf;
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val = p+2;
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p--;
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while((*p == ' ') || (*p == '\t')) {
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*p=0;
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p--;
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}
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if(strcmp(key, "Current BSSID") == 0) {
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strcpy(bssid, val);
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}
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if((strcmp(key, "BSSID") == 0) &&
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(strcmp(val, bssid) == 0)) {
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inbssid = 1;
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}
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if((inbssid == 1) &&
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(strcmp(key, "Quality") == 0)) {
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sscanf(val, "%X", &link);
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link *= 4;
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inbssid = 0;
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}
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}
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}
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fclose(f);
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return(link);
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}
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#endif
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