From 16cf145fd659a01c5db7f286e8c9a4700f736920 Mon Sep 17 00:00:00 2001
From: Joe Hershberger <joe.hershberger@ni.com>
Date: Tue, 3 Jul 2018 19:36:41 -0500
Subject: [PATCH] net: Make copy_filename() accept NULL src
Rather than crashing, check the src ptr and set dst to empty string.
Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
---
net/net.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/net/net.c b/net/net.c
index 42a50e60f8..333102ea79 100644
--- a/net/net.c
+++ b/net/net.c
@@ -1522,12 +1522,12 @@ void net_set_udp_header(uchar *pkt, struct in_addr dest, int dport, int sport,
void copy_filename(char *dst, const char *src, int size)
{
- if (*src && (*src == '"')) {
+ if (src && *src && (*src == '"')) {
++src;
--size;
}
- while ((--size > 0) && *src && (*src != '"'))
+ while ((--size > 0) && src && *src && (*src != '"'))
*dst++ = *src++;
*dst = '\0';
}
--
2.39.5