From: Guy Harris <gharris@sonic.net>
Date: Mon, 8 Feb 2021 07:29:53 +0000 (-0800)
Subject: NPF: expand a comment. [skip ci]
X-Git-Tag: libpcap-1.10.1~87
X-Git-Url: https://git.tcpdump.org/libpcap/commitdiff_plain/d0908c06e1121f0948d9afb98fe70f946e6ccd8d

NPF: expand a comment. [skip ci]

Indicate which NT status code returned by the Npcap driver turns into
ERROR_GEN_FAILURE, because Microsoft sure doesn't bother to do that
conveniently.

(cherry picked from commit 9397b6a37ca57c4e8d4bf984bf4a2edb6cfc5353)
---

diff --git a/pcap-npf.c b/pcap-npf.c
index f12c7018..6da18094 100644
--- a/pcap-npf.c
+++ b/pcap-npf.c
@@ -549,6 +549,11 @@ pcap_read_npf(pcap_t *p, int cnt, pcap_handler callback, u_char *user)
 
 			if (errcode == ERROR_GEN_FAILURE) {
 				/*
+				 * (This comes from STATUS_UNSUCCESSFUL,
+				 * as well as some other NT status codes
+				 * that the Npcap driver is unlikely
+				 * to return.)
+				 *
 				 * The device on which we're capturing
 				 * went away, or it became unusable
 				 * by NPF due to a suspend/resume.