From 9211bd33ec1c0923b992e9644cb94303b0fa3420 Mon Sep 17 00:00:00 2001
From: Alexey Samsonov <samsonov@google.com>
Date: Mon, 18 Feb 2013 07:17:12 +0000
Subject: [PATCH] [Sanitizer] Make temporary filename depend on user ID

llvm-svn: 175424
---
 compiler-rt/lib/sanitizer_common/sanitizer_common.h          |  1 +
 compiler-rt/lib/sanitizer_common/sanitizer_posix.cc          |  4 ++++
 compiler-rt/lib/sanitizer_common/sanitizer_win.cc            |  4 ++++
 .../lib/sanitizer_common/tests/sanitizer_libc_test.cc        | 12 +++++++-----
 4 files changed, 16 insertions(+), 5 deletions(-)

diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_common.h b/compiler-rt/lib/sanitizer_common/sanitizer_common.h
index ef09594..7816306 100644
--- a/compiler-rt/lib/sanitizer_common/sanitizer_common.h
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_common.h
@@ -126,6 +126,7 @@ void DumpProcessMap();
 bool FileExists(const char *filename);
 const char *GetEnv(const char *name);
 const char *GetPwd();
+u32 GetUid();
 void ReExec();
 bool StackSizeIsUnlimited();
 void SetStackSizeLimitInBytes(uptr limit);
diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_posix.cc b/compiler-rt/lib/sanitizer_common/sanitizer_posix.cc
index 05ed604..d072025 100644
--- a/compiler-rt/lib/sanitizer_common/sanitizer_posix.cc
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_posix.cc
@@ -44,6 +44,10 @@ int GetPid() {
   return getpid();
 }
 
+u32 GetUid() {
+  return getuid();
+}
+
 uptr GetThreadSelf() {
   return (uptr)pthread_self();
 }
diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_win.cc b/compiler-rt/lib/sanitizer_common/sanitizer_win.cc
index 2ce3c35..4fe3ece 100644
--- a/compiler-rt/lib/sanitizer_common/sanitizer_win.cc
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_win.cc
@@ -131,6 +131,10 @@ const char *GetPwd() {
   UNIMPLEMENTED();
 }
 
+u32 GetUid() {
+  UNIMPLEMENTED();
+}
+
 void DumpProcessMap() {
   UNIMPLEMENTED();
 }
diff --git a/compiler-rt/lib/sanitizer_common/tests/sanitizer_libc_test.cc b/compiler-rt/lib/sanitizer_common/tests/sanitizer_libc_test.cc
index 6616f42..0ae2091 100644
--- a/compiler-rt/lib/sanitizer_common/tests/sanitizer_libc_test.cc
+++ b/compiler-rt/lib/sanitizer_common/tests/sanitizer_libc_test.cc
@@ -55,22 +55,24 @@ TEST(SanitizerCommon, FileOps) {
   const char *str2 = "zxcv";
   uptr len2 = internal_strlen(str2);
 
-  const char kTempFileName[] = "/tmp/sanitizer_common.tmp";
-  fd_t fd = OpenFile(kTempFileName, true);
+  u32 uid = GetUid();
+  char temp_filename[128];
+  internal_snprintf(temp_filename, 128, "/tmp/sanitizer_common.tmp.%d", uid);
+  fd_t fd = OpenFile(temp_filename, true);
   EXPECT_NE(fd, kInvalidFd);
   EXPECT_EQ(len1, internal_write(fd, str1, len1));
   EXPECT_EQ(len2, internal_write(fd, str2, len2));
   internal_close(fd);
 
-  fd = OpenFile(kTempFileName, false);
+  fd = OpenFile(temp_filename, false);
   EXPECT_NE(fd, kInvalidFd);
   uptr fsize = internal_filesize(fd);
   EXPECT_EQ(len1 + len2, fsize);
 
 #if SANITIZER_TEST_HAS_STAT_H
   struct stat st1, st2, st3;
-  EXPECT_EQ(0, internal_stat(kTempFileName, &st1));
-  EXPECT_EQ(0, internal_lstat(kTempFileName, &st2));
+  EXPECT_EQ(0, internal_stat(temp_filename, &st1));
+  EXPECT_EQ(0, internal_lstat(temp_filename, &st2));
   EXPECT_EQ(0, internal_fstat(fd, &st3));
   EXPECT_EQ(fsize, (uptr)st3.st_size);
 #endif
-- 
2.7.4