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libauthsrv: remove opasstokey()

--- a/libauthsrv/Makefile

+++ b/libauthsrv/Makefile

@@ -14,7 +14,6 @@

 	convT2M.$O\

 	convTR2M.$O\

 	nvcsum.$O\

-	opasstokey.$O\

 	passtokey.$O\

 	_asgetpakkey.$O\

 	_asgetresp.$O\

--- a/libauthsrv/opasstokey.c

+++ /dev/null

@@ -1,29 +1,0 @@

-#include <u.h>

-#include <libc.h>

-#include <authsrv.h>

-

-int

-opasstokey(char *key, char *p)

-{

-	uchar t[10];

-	int c, n;

-

-	n = strlen(p);

-	memset(t, ' ', sizeof t);

-	if(n < 5)

-		return 0;

-	if(n > 10)

-		n = 10;

-	strncpy((char*)t, p, n);

-	if(n >= 9){

-		c = p[8] & 0xf;

-		if(n == 10)

-			c += p[9] << 4;

-		for(n = 0; n < 8; n++)

-			if(c & (1 << n))

-				t[n] -= ' ';

-	}

-	for(n = 0; n < 7; n++)

-		key[n] = (t[n] >> n) + (t[n+1] << (8 - (n+1)));

-	return 1;

-}