File libpcap-CVE-2024-8006.patch of Package libpcap.35575

From 7bfeb10956692e5ef0fe435090144be35d33dafc Mon Sep 17 00:00:00 2001
From: Nicolas Badoux <n.badoux@hotmail.com>
Date: Mon, 19 Aug 2024 12:31:53 +0200
Subject: [PATCH 1/2] makes pcap_findalldevs_ex errors out if the directory
 does not exist

---
 pcap.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

Index: libpcap-1.10.4/pcap-new.c
===================================================================
--- libpcap-1.10.4.orig/pcap-new.c
+++ libpcap-1.10.4/pcap-new.c
@@ -232,6 +232,13 @@ int pcap_findalldevs_ex(const char *sour
 #else
 		/* opening the folder */
 		unixdir= opendir(path);
+		if (unixdir == NULL) {
+			DIAG_OFF_FORMAT_TRUNCATION
+			snprintf(errbuf, PCAP_ERRBUF_SIZE,
+			    "Error when listing files: does folder '%s' exist?", path);
+			DIAG_ON_FORMAT_TRUNCATION
+			return -1;
+		}
 
 		/* get the first file into it */
 		filedata= readdir(unixdir);
@@ -239,7 +246,7 @@ int pcap_findalldevs_ex(const char *sour
 		if (filedata == NULL)
 		{
 			DIAG_OFF_FORMAT_TRUNCATION
-			snprintf(errbuf, PCAP_ERRBUF_SIZE, "Error when listing files: does folder '%s' exist?", path);
+			snprintf(errbuf, PCAP_ERRBUF_SIZE, "Error when listing files: does folder '%s' contain files?", path);
 			DIAG_ON_FORMAT_TRUNCATION
 			closedir(unixdir);
 			return -1;