From: Dmitry V. Levin <ldv@altlinux.org>
Date: Sat, 19 Nov 2016 23:25:54 +0000 (+0000)
Subject: tests: check decoding of prctl PR_GET_NAME/PR_SET_NAME operations
X-Git-Tag: v4.15~106
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=9e8b95977d365938303037fc20a96ca1eccac733;p=strace

tests: check decoding of prctl PR_GET_NAME/PR_SET_NAME operations

* tests/prctl-name.c: New file.
* tests/prctl-name.test: New test.
* tests/.gitignore: Add prctl-name.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add prctl-name.test.
---

diff --git a/tests/.gitignore b/tests/.gitignore
index e47698b6..f1764062 100644
--- a/tests/.gitignore
+++ b/tests/.gitignore
@@ -208,6 +208,7 @@ pkey_free
 pkey_mprotect
 poll
 ppoll
+prctl-name
 prctl-seccomp-filter-v
 prctl-seccomp-strict
 pread64-pwrite64
diff --git a/tests/Makefile.am b/tests/Makefile.am
index eb72739b..d7524953 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -266,6 +266,7 @@ check_PROGRAMS = \
 	pkey_mprotect \
 	poll \
 	ppoll \
+	prctl-name \
 	prctl-seccomp-filter-v \
 	prctl-seccomp-strict \
 	pread64-pwrite64 \
@@ -640,6 +641,7 @@ DECODER_TESTS = \
 	pkey_mprotect.test \
 	poll.test \
 	ppoll.test \
+	prctl-name.test \
 	prctl-seccomp-filter-v.test \
 	prctl-seccomp-strict.test \
 	pread64-pwrite64.test \
diff --git a/tests/prctl-name.c b/tests/prctl-name.c
new file mode 100644
index 00000000..fe93965e
--- /dev/null
+++ b/tests/prctl-name.c
@@ -0,0 +1,104 @@
+/*
+ * Check decoding of prctl PR_GET_NAME/PR_SET_NAME operations.
+ *
+ * Copyright (c) 2016 Eugene Syromyatnikov <evgsyr@gmail.com>
+ * Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "tests.h"
+
+#ifdef HAVE_PRCTL
+# include <sys/prctl.h>
+#endif
+
+#if defined HAVE_PRCTL && defined PR_GET_NAME && defined PR_SET_NAME
+
+# include <stdio.h>
+# include <string.h>
+# include <unistd.h>
+
+int
+main(void)
+{
+	static const char str[] = "0123456789abcdef";
+	static const int len = sizeof(str);
+	static const int len1 = len - 1;
+	char *const name = tail_memdup(str, len);
+	char *const name1 = name + 1;
+	int i;
+	int rc;
+
+	rc = prctl(PR_SET_NAME, NULL);
+	printf("prctl(PR_SET_NAME, NULL) = %s\n", sprintrc(rc));
+
+	for (i = 0; i <= len1; ++i) {
+		rc = prctl(PR_SET_NAME, name + len1 - i);
+		printf("prctl(PR_SET_NAME, \"%.*s\"%s) = %s\n",
+		       i < len1 - 1 ? i : len1 - 1,
+		       str + len1 - i,
+		       i < len1 - 1 ? "" : "...",
+		       sprintrc(rc));
+	}
+
+	name[0] = -1;
+	memcpy(name1, str, len1);
+
+	for (i = 0; i <= len1; ++i) {
+		rc = prctl(PR_SET_NAME, name1 + len1 - i);
+		if (i < len1 - 1)
+			printf("prctl(PR_SET_NAME, %p) = %s\n",
+			       name1 + len1 - i, sprintrc(rc));
+		else
+			printf("prctl(PR_SET_NAME, \"%.*s\"...) = %s\n",
+			       len1 - 1, str + len1 - i, sprintrc(rc));
+	}
+
+	rc = prctl(PR_GET_NAME, NULL);
+	printf("prctl(PR_GET_NAME, NULL) = %s\n", sprintrc(rc));
+
+	for (i = 0; i < len1; ++i) {
+		rc = prctl(PR_GET_NAME, name1 + len1 - i);
+		printf("prctl(PR_GET_NAME, %p) = %s\n",
+		       name1 + len1 - i, sprintrc(rc));
+	}
+
+	rc = prctl(PR_GET_NAME, name1);
+	if (rc)
+		printf("prctl(PR_GET_NAME, %p) = %s\n",
+		       name1, sprintrc(rc));
+	else
+		printf("prctl(PR_GET_NAME, \"%.*s\") = %s\n",
+		       len1 - 1, name1, sprintrc(rc));
+
+	puts("+++ exited with 0 +++");
+	return 0;
+}
+
+#else
+
+SKIP_MAIN_UNDEFINED("HAVE_PRCTL && PR_GET_NAME && PR_SET_NAME")
+
+#endif
diff --git a/tests/prctl-name.test b/tests/prctl-name.test
new file mode 100755
index 00000000..e258c111
--- /dev/null
+++ b/tests/prctl-name.test
@@ -0,0 +1,6 @@
+#!/bin/sh
+
+# Check decoding of prctl PR_GET_NAME/PR_SET_NAME operations.
+. "${srcdir=.}/init.sh"
+
+run_strace_match_diff -a23 -e trace=prctl