From: Roy Marples <roy@marples.name>
Date: Sat, 6 Jun 2026 07:20:41 +0000 (+0100)
Subject: privsep: smaller buffer size without INET6
X-Git-Url: http://git.ipfire.org/gitweb/index.cgi?a=commitdiff_plain;p=thirdparty%2Fdhcpcd.git

privsep: smaller buffer size without INET6
---

diff --git a/src/privsep.h b/src/privsep.h
index 122b94c5..0959b76f 100644
--- a/src/privsep.h
+++ b/src/privsep.h
@@ -93,10 +93,16 @@
 #define PS_START 0x4000
 #define PS_STOP	 0x8000
 
+#ifdef INET6
+#define PS_BUFLEN6 CMSG_SPACE(sizeof(struct in6_pktinfo) + sizeof(int))
+#else
+#define PS_BUFLEN6 0
+#endif
+
 /* Max INET message size + meta data for IPC */
 #define PS_BUFLEN                                                         \
 	((64 * 1024) + sizeof(struct ps_msghdr) + sizeof(struct msghdr) + \
-	    CMSG_SPACE(sizeof(struct in6_pktinfo) + sizeof(int)))
+	    PS_BUFLEN6)
 
 #define PSP_NAMESIZE 16 + INET_MAX_ADDRSTRLEN