From a181f3dd3e922e7acc5a3f4982584e845bddec3c Mon Sep 17 00:00:00 2001
From: Ori Bernstein <ori@eigenstate.org>
Date: Wed, 4 Dec 2019 11:46:42 -0800
Subject: acme, sam: handle >1GB files correctly

imported from plan9port, edfe3c016fe6ef10c55f7a17aab668214ec21efc
---
 sys/src/cmd/sam/disk.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'sys/src/cmd/sam/disk.c')

diff --git a/sys/src/cmd/sam/disk.c b/sys/src/cmd/sam/disk.c
index 47b30bda4..e822f4811 100644
--- a/sys/src/cmd/sam/disk.c
+++ b/sys/src/cmd/sam/disk.c
@@ -71,6 +71,9 @@ disknewblock(Disk *d, uint n)
 		b = blist;
 		blist = b->next;
 		b->addr = d->addr;
+		if(d->addr+size < d->addr){
+			panic("temp file overflow");
+		}
 		d->addr += size;
 	}
 	b->n = n;
-- 
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