From cf273016fe7905925212f0f459f431dc7d45a2c3 Mon Sep 17 00:00:00 2001
From: "Dmitry V. Levin" <ldv@altlinux.org>
Date: Mon, 18 Apr 2016 13:45:36 +0000
Subject: [PATCH] tests: extend test coverage of setgid syscall

* tests/setgid.c: New file.
* tests/setgid.test: New test.
* tests/.gitignore: Add setgid.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add setgid.test.
---
 tests/.gitignore  |  1 +
 tests/Makefile.am |  2 ++
 tests/setgid.c    | 25 +++++++++++++++++++++++++
 tests/setgid.test |  6 ++++++
 4 files changed, 34 insertions(+)
 create mode 100644 tests/setgid.c
 create mode 100755 tests/setgid.test

diff --git a/tests/.gitignore b/tests/.gitignore
index 3c37023d..b7b9df74 100644
--- a/tests/.gitignore
+++ b/tests/.gitignore
@@ -142,6 +142,7 @@ semop
 sendfile
 sendfile64
 set_ptracer_any
+setgid
 sethostname
 setuid
 setuid32
diff --git a/tests/Makefile.am b/tests/Makefile.am
index 592c2b76..4c51f575 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -192,6 +192,7 @@ check_PROGRAMS = \
 	sendfile \
 	sendfile64 \
 	set_ptracer_any \
+	setgid \
 	sethostname \
 	setuid \
 	setuid32 \
@@ -401,6 +402,7 @@ DECODER_TESTS = \
 	semop.test \
 	sendfile.test \
 	sendfile64.test \
+	setgid.test \
 	sethostname.test \
 	setuid.test \
 	setuid32.test \
diff --git a/tests/setgid.c b/tests/setgid.c
new file mode 100644
index 00000000..aa3f8987
--- /dev/null
+++ b/tests/setgid.c
@@ -0,0 +1,25 @@
+#include "tests.h"
+#include <sys/syscall.h>
+
+#ifdef __NR_setgid
+
+# define SYSCALL_NR	__NR_setgid
+# define SYSCALL_NAME	"setgid"
+
+# if defined __NR_setgid32 && __NR_setgid != __NR_setgid32
+#  define UGID_TYPE	short
+#  define GETUGID	syscall(__NR_getegid)
+#  define CHECK_OVERFLOWUGID(arg)	check_overflowgid(arg)
+# else
+#  define UGID_TYPE	int
+#  define GETUGID	getegid()
+#  define CHECK_OVERFLOWUGID(arg)
+# endif
+
+# include "setugid.c"
+
+#else
+
+SKIP_MAIN_UNDEFINED("__NR_setgid")
+
+#endif
diff --git a/tests/setgid.test b/tests/setgid.test
new file mode 100755
index 00000000..a3a90041
--- /dev/null
+++ b/tests/setgid.test
@@ -0,0 +1,6 @@
+#!/bin/sh
+
+# Check setgid syscall decoding.
+
+. "${srcdir=.}/init.sh"
+run_strace_match_diff -a10
-- 
2.40.0