From 619119e0e21c0964028a236dd7c23f3fecc4e044 Mon Sep 17 00:00:00 2001
From: David CARLIER <devnexen@gmail.com>
Date: Tue, 25 Jan 2022 14:22:48 +0000
Subject: freebsd add ifconf data.

---
 libc-test/build.rs                      |  1 +
 libc-test/semver/freebsd.txt            |  2 ++
 src/unix/bsd/freebsdlike/freebsd/mod.rs | 44 +++++++++++++++++++++++++++++++++
 3 files changed, 47 insertions(+)

diff --git a/libc-test/build.rs b/libc-test/build.rs
index 19c5ddce70..4fd9e8b7f3 100644
--- a/libc-test/build.rs
+++ b/libc-test/build.rs
@@ -2316,6 +2316,7 @@ fn test_freebsd(target: &str) {
             ("if_data", "__ifi_epoch") => true,
             ("if_data", "__ifi_lastchange") => true,
             ("ifreq", "ifr_ifru") => true,
+            ("ifconf", "ifc_ifcu") => true,
 
             // anonymous struct
             ("devstat", "dev_links") => true,
diff --git a/libc-test/semver/freebsd.txt b/libc-test/semver/freebsd.txt
index 8aff0a5d6c..4772415cda 100644
--- a/libc-test/semver/freebsd.txt
+++ b/libc-test/semver/freebsd.txt
@@ -1536,6 +1536,8 @@ idtype_t
 if_freenameindex
 if_nameindex
 ifaddrs
+ifconf
+ifreq
 in6_pktinfo
 initgroups
 ip_mreqn
diff --git a/src/unix/bsd/freebsdlike/freebsd/mod.rs b/src/unix/bsd/freebsdlike/freebsd/mod.rs
index eeea87bd0b..251f236c58 100644
--- a/src/unix/bsd/freebsdlike/freebsd/mod.rs
+++ b/src/unix/bsd/freebsdlike/freebsd/mod.rs
@@ -960,6 +960,13 @@ s! {
         pub sc_ngroups: ::c_int,
         pub sc_groups: [::gid_t; 1],
     }
+
+    pub struct ifconf {
+        pub ifc_len: ::c_int,
+        #[cfg(libc_union)]
+        pub ifc_ifcu: __c_anonymous_ifc_ifcu,
+    }
+
 }
 
 s_no_extra_traits! {
@@ -1142,6 +1149,12 @@ s_no_extra_traits! {
         pub ifr_ifru: ::sockaddr,
     }
 
+    #[cfg(libc_union)]
+    pub union __c_anonymous_ifc_ifcu {
+        pub ifcu_buf: ::caddr_t,
+        pub ifcu_req: *mut ifreq,
+    }
+
     pub struct ifstat {
         /// if name, e.g. "en0"
         pub ifs_name: [::c_char; ::IFNAMSIZ as usize],
@@ -1549,6 +1562,37 @@ cfg_if! {
             }
         }
 
+        #[cfg(libc_union)]
+        impl Eq for __c_anonymous_ifc_ifcu {}
+
+        #[cfg(libc_union)]
+        impl PartialEq for __c_anonymous_ifc_ifcu {
+            fn eq(&self, other: &__c_anonymous_ifc_ifcu) -> bool {
+                unsafe {
+                    self.ifcu_buf == other.ifcu_buf &&
+                    self.ifcu_req == other.ifcu_req
+                }
+            }
+        }
+
+        #[cfg(libc_union)]
+        impl ::fmt::Debug for __c_anonymous_ifc_ifcu {
+            fn fmt(&self, f: &mut ::fmt::Formatter) -> ::fmt::Result {
+                f.debug_struct("ifc_ifcu")
+                    .field("ifcu_buf", unsafe { &self.ifcu_buf })
+                    .field("ifcu_req", unsafe { &self.ifcu_req })
+                    .finish()
+            }
+        }
+
+        #[cfg(libc_union)]
+        impl ::hash::Hash for __c_anonymous_ifc_ifcu {
+            fn hash<H: ::hash::Hasher>(&self, state: &mut H) {
+                unsafe { self.ifcu_buf.hash(state) };
+                unsafe { self.ifcu_req.hash(state) };
+            }
+        }
+
         impl PartialEq for ifstat {
             fn eq(&self, other: &ifstat) -> bool {
                 let self_ascii: &[::c_char] = &self.ascii;
-- 
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