commit 0ac2a105ae58e86a8d224020f0a3c43358312e66
from: Nic <nicolagi@sdf.org>
via: Dan Cross <crossd@gmail.com>
date: Sun Oct 17 18:08:16 2021 UTC

cmd/auxstats: improve wireless interface name matcher in Linux

commit - e683bdfa76a5c2c54422a6bd2934b133d77ba610
commit + 0ac2a105ae58e86a8d224020f0a3c43358312e66
blob - 7bc4b7206881f4756cf9a951ba4f21275e4b8240
blob + e402655115f19fb92b93a97aef7e0e47a45ce6ec
--- src/cmd/auxstats/Linux.c
+++ src/cmd/auxstats/Linux.c
@@ -1,6 +1,7 @@
 #include <u.h>
 #include <libc.h>
 #include <bio.h>
+#include <regexp.h>
 #include "dat.h"
 
 void xapm(int);
@@ -235,10 +236,12 @@ void
 xwireless(int first)
 {
 	static int fd = -1;
+	static Reprog *wlan = nil;
 	int i;
 
 	if(first){
 		fd = open("/proc/net/wireless", OREAD);
+		wlan = regcomp("^(wlan[0-9]+|wlp[0-9]+s[0-9]+):$");
 		return;
 	}
 
@@ -247,7 +250,7 @@ xwireless(int first)
 		tokens(i);
 		if(ntok < 3)
 			continue;
-		if(strcmp(tok[0], "wlan0:") == 0)
+		if(regexec(wlan, tok[0], nil, 0) == 1)
 			Bprint(&bout, "802.11 =%lld 100\n", atoll(tok[2]));
 	}
 }