From 5f27480f26cb3c3329fdf4f1d7047ee11c6d1a95 Mon Sep 17 00:00:00 2001
From: Ian Moffett <ian@osmora.org>
Date: Thu, 23 May 2024 19:01:30 -0400
Subject: kernel: intr: Fix garbage output

Signed-off-by: Ian Moffett <ian@osmora.org>
---
 sys/kern/kern_intr.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

(limited to 'sys')

diff --git a/sys/kern/kern_intr.c b/sys/kern/kern_intr.c
index e37c87e..0c80334 100644
--- a/sys/kern/kern_intr.c
+++ b/sys/kern/kern_intr.c
@@ -65,9 +65,15 @@ proc_read(struct proc_entry *entry, struct sio_txn *sio)
             idx += res;
             p += res;
         }
+
+        if (idx >= (PROC_BUF_SIZE - 1)) {
+            break;
+        }
     }
 
-    len = strlen(buf);
+    len = idx + 1;
+    buf[idx] = '\0';
+
     if (sio->len > PROC_BUF_SIZE)
         sio->len = PROC_BUF_SIZE;
     if (len > sio->len)
@@ -75,7 +81,7 @@ proc_read(struct proc_entry *entry, struct sio_txn *sio)
 
     memcpy(sio->buf, buf, len);
     mutex_release(&intrlist_lock);
-    return sio->len;
+    return len;
 }
 
 /*
-- 
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