shithub: riscv

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ref: 1cd199fbd188538a7eef7bcc68e8e8d5ef2c5d9f
parent: a8ad9632ff7447b8ca448cc23dfbc60f0e36d8ec
author: cinap_lenrek <[email protected]>
date: Tue May 23 02:57:48 EDT 2023

fix previous MERGE commit... why did that modify ipaux?

--- a/sys/src/cmd/ip/ppp/ipaux.c
+++ b/sys/src/cmd/ip/ppp/ipaux.c
@@ -8,18 +8,10 @@
 ptclcsum(Block *bp, int offset, int len)
 {
 	uchar *addr;
-	ulong losum, hisum;
-	ushort csum;
-	int odd, blen, x;
+	int blen;
 
-	/* Correct to front of data area */
-	while(bp != nil && offset && offset >= BLEN(bp)) {
-		offset -= BLEN(bp);
-		bp = bp->next;
-	}
-	if(bp == nil)
+	if(bp == nil || bp->rptr + offset >= bp->wptr)
 		return 0;
-
 	addr = bp->rptr + offset;
 	blen = BLEN(bp) - offset;
 	if(blen < len)