X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fbasic%2Fsocket-util.c;h=16646ff9d83987bc90b0d4a303fe65a9b6bbaf10;hp=f47a8f04e0399c16233ebad5b9b8481681363e9c;hb=c1d93f2a0a009a95440778c53d89aa693bc6787e;hpb=599f015c68718f04ee1946fc263aad8aaa614072

diff --git a/src/basic/socket-util.c b/src/basic/socket-util.c
index f47a8f04e..16646ff9d 100644
--- a/src/basic/socket-util.c
+++ b/src/basic/socket-util.c
@@ -1052,3 +1052,17 @@ int flush_accept(int fd) {
         }
 }
 #endif // 0
+
+struct cmsghdr* cmsg_find(struct msghdr *mh, int level, int type, socklen_t length) {
+        struct cmsghdr *cmsg;
+
+        assert(mh);
+
+        CMSG_FOREACH(cmsg, mh)
+                if (cmsg->cmsg_level == level &&
+                    cmsg->cmsg_type == type &&
+                    (length == (socklen_t) -1 || length == cmsg->cmsg_len))
+                        return cmsg;
+
+        return NULL;
+}