git: 383d51d59236 - main - unix tests: Add a regression test for getpeername(2)

The branch main has been updated by markj:

URL: https://cgit.FreeBSD.org/src/commit/?id=383d51d592369f92b836f77abf8f118ab4e44ff1

commit 383d51d592369f92b836f77abf8f118ab4e44ff1
Author:     Mark Johnston <markj@FreeBSD.org>
AuthorDate: 2023-06-21 18:33:52 +0000
Commit:     Mark Johnston <markj@FreeBSD.org>
CommitDate: 2023-06-21 18:39:36 +0000

    unix tests: Add a regression test for getpeername(2)
    
    Ensure that it works as expected when applied to a self-connected
    socket.
    
    MFC after:      1 week
    Sponsored by:   The FreeBSD Foundation
---
 tests/sys/kern/unix_dgram.c | 30 +++++++++++++++++++++++++++++-
 1 file changed, 29 insertions(+), 1 deletion(-)

diff --git a/tests/sys/kern/unix_dgram.c b/tests/sys/kern/unix_dgram.c
index 93669a30d4c5..9df0d4ca7168 100644
--- a/tests/sys/kern/unix_dgram.c
+++ b/tests/sys/kern/unix_dgram.c
@@ -36,6 +36,7 @@
 #include <errno.h>
 #include <fcntl.h>
 #include <signal.h>
+#include <stdio.h>
 #include <stdlib.h>
 
 #include <atf-c.h>
@@ -363,12 +364,39 @@ ATF_TC_BODY(event, tc)
 	test42(fd[0]);
 }
 
-ATF_TP_ADD_TCS(tp)
+ATF_TC_WITHOUT_HEAD(selfgetpeername);
+ATF_TC_BODY(selfgetpeername, tc)
 {
+	struct sockaddr_un sun;
+	const char *name;
+	socklen_t len;
+	int sd;
+
+	name = "selfgetpeername";
+
+	sd = socket(PF_UNIX, SOCK_DGRAM, 0);
+	ATF_REQUIRE(sd != -1);
+
+	memset(&sun, 0, sizeof(sun));
+	sun.sun_len = sizeof(sun);
+	sun.sun_family = AF_UNIX;
+	snprintf(sun.sun_path, sizeof(sun.sun_path), "%s", name);
+	ATF_REQUIRE(bind(sd, (struct sockaddr *)&sun, sizeof(sun)) == 0);
+	ATF_REQUIRE(connect(sd, (struct sockaddr *)&sun, sizeof(sun)) == 0);
+
+	len = sizeof(sun);
+	ATF_REQUIRE(getpeername(sd, (struct sockaddr *)&sun, &len) == 0);
+	ATF_REQUIRE(strcmp(sun.sun_path, name) == 0);
 
+	ATF_REQUIRE(close(sd) == 0);
+}
+
+ATF_TP_ADD_TCS(tp)
+{
 	ATF_TP_ADD_TC(tp, basic);
 	ATF_TP_ADD_TC(tp, one2many);
 	ATF_TP_ADD_TC(tp, event);
+	ATF_TP_ADD_TC(tp, selfgetpeername);
 
 	return (atf_no_error());
 }