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Date:      Tue, 24 Mar 2026 21:25:24 +0000
From:      Gleb Smirnoff <glebius@FreeBSD.org>
To:        src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org
Subject:   git: cd05c88058b5 - main - tests/netinet: add test for getsockname() on a disconnected TCP socket
Message-ID:  <69c30144.207df.1b6a4494@gitrepo.freebsd.org>

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The branch main has been updated by glebius:

URL: https://cgit.FreeBSD.org/src/commit/?id=cd05c88058b5b3684f0d7f3086afa21a944d9cd1

commit cd05c88058b5b3684f0d7f3086afa21a944d9cd1
Author:     Gleb Smirnoff <glebius@FreeBSD.org>
AuthorDate: 2026-03-24 20:51:59 +0000
Commit:     Gleb Smirnoff <glebius@FreeBSD.org>
CommitDate: 2026-03-24 21:24:58 +0000

    tests/netinet: add test for getsockname() on a disconnected TCP socket
    
    Stack it into existing file that exercises an other corner case of our
    TCP and rename the file to a more generic name.
---
 ObsoleteFiles.inc                                  |  3 ++
 tests/sys/netinet/Makefile                         |  2 +-
 .../{tcp_implied_connect.c => tcp_socket.c}        | 39 ++++++++++++++++++++--
 3 files changed, 40 insertions(+), 4 deletions(-)

diff --git a/ObsoleteFiles.inc b/ObsoleteFiles.inc
index 1b5fe1dec9b3..0f8fd14e2c44 100644
--- a/ObsoleteFiles.inc
+++ b/ObsoleteFiles.inc
@@ -51,6 +51,9 @@
 #   xargs -n1 | sort | uniq -d;
 # done
 
+# 20260324: test file renamed
+OLD_FILES+=usr/tests/sys/netinet/tcp_implied_connect
+
 # 20260302: Remove obsolete le(4) ethernet driver
 OLD_FILES+=usr/share/man/man4/le.4.gz
 
diff --git a/tests/sys/netinet/Makefile b/tests/sys/netinet/Makefile
index 564eabae3313..42906aa2dd93 100644
--- a/tests/sys/netinet/Makefile
+++ b/tests/sys/netinet/Makefile
@@ -13,7 +13,7 @@ ATF_TESTS_C=	broadcast \
 		so_reuseport_lb_test \
 		socket_afinet \
 		tcp_connect_port_test \
-		tcp_implied_connect \
+		tcp_socket \
 		tcp_md5_getsockopt \
 		udp_bindings \
 		udp_io
diff --git a/tests/sys/netinet/tcp_implied_connect.c b/tests/sys/netinet/tcp_socket.c
similarity index 70%
rename from tests/sys/netinet/tcp_implied_connect.c
rename to tests/sys/netinet/tcp_socket.c
index d03d6be4fb92..668a3915adb7 100644
--- a/tests/sys/netinet/tcp_implied_connect.c
+++ b/tests/sys/netinet/tcp_socket.c
@@ -33,8 +33,8 @@
 
 #include <atf-c.h>
 
-ATF_TC_WITHOUT_HEAD(tcp_implied_connect);
-ATF_TC_BODY(tcp_implied_connect, tc)
+ATF_TC_WITHOUT_HEAD(implied_connect);
+ATF_TC_BODY(implied_connect, tc)
 {
 	struct sockaddr_in sin = {
 		.sin_family = AF_INET,
@@ -72,9 +72,42 @@ ATF_TC_BODY(tcp_implied_connect, tc)
 	ATF_REQUIRE(strcmp(buf, repl) == 0);
 }
 
+/*
+ * A disconnected TCP socket shall return the local address it used before
+ * it was disconnected.
+ */
+ATF_TC_WITHOUT_HEAD(getsockname_disconnected);
+ATF_TC_BODY(getsockname_disconnected, tc)
+{
+	struct sockaddr_in sin = {
+		.sin_family = AF_INET,
+		.sin_len = sizeof(sin),
+	};
+	socklen_t len;
+	int s, c, a;
+
+	ATF_REQUIRE(s = socket(PF_INET, SOCK_STREAM, 0));
+	ATF_REQUIRE(c = socket(PF_INET, SOCK_STREAM, 0));
+
+	ATF_REQUIRE(bind(s, (struct sockaddr *)&sin, sizeof(sin)) == 0);
+	len = sizeof(sin);
+	ATF_REQUIRE(getsockname(s, (struct sockaddr *)&sin, &len) == 0);
+	sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+	ATF_REQUIRE(listen(s, -1) == 0);
+	ATF_REQUIRE(connect(c, (struct sockaddr *)&sin, sizeof(sin)) == 0);
+	ATF_REQUIRE((a = accept(s, NULL, NULL)) != 1);
+	ATF_REQUIRE(close(a) == 0);
+	ATF_REQUIRE(getsockname(c, (struct sockaddr *)&sin, &len) == 0);
+	ATF_REQUIRE(sin.sin_addr.s_addr == htonl(INADDR_LOOPBACK));
+
+	close(c);
+	close(s);
+}
+
 ATF_TP_ADD_TCS(tp)
 {
-	ATF_TP_ADD_TC(tp, tcp_implied_connect);
+	ATF_TP_ADD_TC(tp, implied_connect);
+	ATF_TP_ADD_TC(tp, getsockname_disconnected);
 
 	return (atf_no_error());
 }


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