Update picosocks.c

huitema · web-flow · commit 424ea561a4d1 · 2025-04-03T07:40:00.000-07:00
Add a comment explaining motivation for #ifdef IP_SENDSRCADDR
diff --git a/picoquic/picosocks.c b/picoquic/picosocks.c
@@ -645,6 +645,7 @@ void picoquic_socks_cmsg_format(
             }
 #else 
             /* The IP_PKTINFO structure is not defined on BSD */
+            /* Some versions of freeBSD do not define IP_SENDSRCADDR, use IP_RECVDSTADDR instead. */
             struct in_addr* pktinfo = (struct in_addr*)cmsg_format_header_return_data_ptr(msg, &last_cmsg,
                 &control_length, IPPROTO_IP,
 #ifdef IP_SENDSRCADDR

Original file line number	Diff line number	Diff line change
`@@ -645,6 +645,7 @@ void picoquic_socks_cmsg_format(`
`645`	`645`	`}`
`646`	`646`	`#else`
`647`	`647`	`/* The IP_PKTINFO structure is not defined on BSD */`
	`648`	`+ /* Some versions of freeBSD do not define IP_SENDSRCADDR, use IP_RECVDSTADDR instead. */`
`648`	`649`	`struct in_addr* pktinfo = (struct in_addr*)cmsg_format_header_return_data_ptr(msg, &last_cmsg,`
`649`	`650`	`&control_length, IPPROTO_IP,`
`650`	`651`	`#ifdef IP_SENDSRCADDR`