From: Francois-Xavier Le Bail <devel.fx.lebail@orange.fr>
Date: Sat, 15 Aug 2020 07:39:51 +0000 (+0200)
Subject: usb-linux: Use sizeof() rather than a number
X-Git-Tag: libpcap-1.10-bp~47
X-Git-Url: https://git.tcpdump.org/libpcap/commitdiff_plain/2f7e6aff2af01a2ac0003dab0c19309da2bfc3dc

usb-linux: Use sizeof() rather than a number
---

diff --git a/pcap-usb-linux.c b/pcap-usb-linux.c
index 436a8452..9e7e8404 100644
--- a/pcap-usb-linux.c
+++ b/pcap-usb-linux.c
@@ -902,7 +902,7 @@ usb_read_linux(pcap_t *handle, int max_packets _U_, pcap_handler callback, u_cha
 		char string_truncated[181];
 
 		strncpy(string_truncated, string, sizeof(string_truncated));
-		string_truncated[180] = 0;
+		string_truncated[sizeof(string_truncated) - 1] = 0;
 		snprintf(handle->errbuf, PCAP_ERRBUF_SIZE,
 			 "Can't parse USB bus message '%s', too few tokens (expected 8 got %d)",
 			 string_truncated, ret);