Aric Stewart : version: Check for out of memory in VerInstallFileA/ W conversion (Coverity 635).

[Alexandre Julliard]

Module: wine
Branch: master
Commit: ea085768201dfb8338250b2740e01c7f4ce1f420
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=ea085768201dfb8338250b2740...

Author: Aric Stewart <aric(a)codeweavers.com>
Date:   Thu Oct  2 10:39:18 2008 -0500

version: Check for out of memory in VerInstallFileA/W conversion (Coverity 635).

---

 dlls/version/install.c       |   32 ++++++++++++++++++++++++--------
 dlls/version/tests/install.c |   41 +++++++++++++++++++++++++++++++++++++++++
 2 files changed, 65 insertions(+), 8 deletions(-)

diff --git a/dlls/version/install.c b/dlls/version/install.c
index d3170e3..2ecfeb9 100644
--- a/dlls/version/install.c
+++ b/dlls/version/install.c
@@ -535,7 +535,7 @@ DWORD WINAPI VerInstallFileW(
 	LPCWSTR destdir,LPCWSTR curdir,LPWSTR tmpfile,PUINT tmpfilelen )
 {
     LPSTR wsrcf = NULL, wsrcd = NULL, wdestf = NULL, wdestd = NULL, wtmpf = NULL, wcurd = NULL;
-    DWORD ret;
+    DWORD ret = 0;
     UINT len;
 
     if (srcfilename)
@@ -543,34 +543,50 @@ DWORD WINAPI VerInstallFileW(
         len = WideCharToMultiByte( CP_ACP, 0, srcfilename, -1, NULL, 0, NULL, NULL );
         if ((wsrcf = HeapAlloc( GetProcessHeap(), 0, len )))
             WideCharToMultiByte( CP_ACP, 0, srcfilename, -1, wsrcf, len, NULL, NULL );
+        else
+            ret = VIF_OUTOFMEMORY;
     }
-    if (srcdir)
+    if (srcdir && !ret)
     {
         len = WideCharToMultiByte( CP_ACP, 0, srcdir, -1, NULL, 0, NULL, NULL );
         if ((wsrcd = HeapAlloc( GetProcessHeap(), 0, len )))
             WideCharToMultiByte( CP_ACP, 0, srcdir, -1, wsrcd, len, NULL, NULL );
+        else
+            ret = VIF_OUTOFMEMORY;
     }
-    if (destfilename)
+    if (destfilename && !ret)
     {
         len = WideCharToMultiByte( CP_ACP, 0, destfilename, -1, NULL, 0, NULL, NULL );
         if ((wdestf = HeapAlloc( GetProcessHeap(), 0, len )))
             WideCharToMultiByte( CP_ACP, 0, destfilename, -1, wdestf, len, NULL, NULL );
+        else
+            ret = VIF_OUTOFMEMORY;
     }
-    if (destdir)
+    if (destdir && !ret)
     {
         len = WideCharToMultiByte( CP_ACP, 0, destdir, -1, NULL, 0, NULL, NULL );
         if ((wdestd = HeapAlloc( GetProcessHeap(), 0, len )))
             WideCharToMultiByte( CP_ACP, 0, destdir, -1, wdestd, len, NULL, NULL );
+        else
+            ret = VIF_OUTOFMEMORY;
     }
-    if (curdir)
+    if (curdir && !ret)
     {
         len = WideCharToMultiByte( CP_ACP, 0, curdir, -1, NULL, 0, NULL, NULL );
         if ((wcurd = HeapAlloc( GetProcessHeap(), 0, len )))
             WideCharToMultiByte( CP_ACP, 0, curdir, -1, wcurd, len, NULL, NULL );
+        else
+            ret = VIF_OUTOFMEMORY;
     }
-    len = *tmpfilelen * sizeof(WCHAR);
-    wtmpf = HeapAlloc( GetProcessHeap(), 0, len );
-    ret = VerInstallFileA(flags,wsrcf,wdestf,wsrcd,wdestd,wcurd,wtmpf,&len);
+    if (!ret)
+    {
+        len = *tmpfilelen * sizeof(WCHAR);
+        wtmpf = HeapAlloc( GetProcessHeap(), 0, len );
+        if (!wtmpf)
+            ret = VIF_OUTOFMEMORY;
+    }
+    if (!ret)
+        ret = VerInstallFileA(flags,wsrcf,wdestf,wsrcd,wdestd,wcurd,wtmpf,&len);
     if (!ret)
         *tmpfilelen = MultiByteToWideChar( CP_ACP, 0, wtmpf, -1, tmpfile, *tmpfilelen );
     else if (ret & VIF_BUFFTOOSMALL)
diff --git a/dlls/version/tests/install.c b/dlls/version/tests/install.c
index ada860c..ec40d3e 100644
--- a/dlls/version/tests/install.c
+++ b/dlls/version/tests/install.c
@@ -165,7 +165,48 @@ static void test_find_file(void)
     }
 }
 
+static void test_install_file(void)
+{
+    CHAR tmpname[MAX_PATH];
+    UINT size = MAX_PATH;
+    DWORD rc;
+    static const CHAR szSrcFileName[] = "nofile.txt";
+    static const CHAR szDestFileName[] = "nofile2.txt";
+    static const CHAR szSrcDir[] = "D:\\oes\\not\\exist";
+    static const CHAR szDestDir[] = "D:\\oes\\not\\exist\\either";
+    static const CHAR szCurDir[] = "C:\\";
+
+    /* testing Invalid Parameters */
+    memset(tmpname,0,sizeof(tmpname));
+    rc = VerInstallFileA(0x0, NULL, NULL, NULL, NULL, NULL, tmpname, &size);
+    ok (rc == 0x10000 && tmpname[0]==0," expected return 0x10000 and no tempname, got %08x/\'%s\'\n",rc,tmpname);
+    memset(tmpname,0,sizeof(tmpname));
+    size = MAX_PATH;
+    rc = VerInstallFileA(0x0, szSrcFileName, NULL, NULL, NULL, NULL, tmpname, &size);
+    memset(tmpname,0,sizeof(tmpname));
+    ok (rc == 0x10000 && tmpname[0]==0," expected return 0x10000 and no tempname, got %08x/\'%s\'\n",rc,tmpname);
+    size = MAX_PATH;
+    rc = VerInstallFileA(0x0, szSrcFileName, szDestFileName, NULL, NULL, NULL, tmpname, &size);
+    memset(tmpname,0,sizeof(tmpname));
+    ok (rc == 0x10000 && tmpname[0]==0," expected return 0x10000 and no tempname, got %08x/\'%s\'\n",rc,tmpname);
+    size = MAX_PATH;
+    rc = VerInstallFileA(0x0, szSrcFileName, szDestFileName, szSrcDir, NULL, NULL, tmpname, &size);
+    memset(tmpname,0,sizeof(tmpname));
+    ok (rc == 0x10000 && tmpname[0]==0," expected return 0x10000 and no tempname, got %08x/\'%s\'\n",rc,tmpname);
+
+    /* Source file does not exist*/
+
+    size = MAX_PATH;
+    rc = VerInstallFileA(0x0, szSrcFileName, szDestFileName, szSrcDir, szDestDir, NULL, tmpname, &size);
+    memset(tmpname,0,sizeof(tmpname));
+    ok (rc == 0x10000 && tmpname[0]==0," expected return 0x10000 and no tempname, got %08x/\'%s\'\n",rc,tmpname);
+    size = MAX_PATH;
+    rc = VerInstallFileA(0x0, szSrcFileName, szDestFileName,  szSrcDir, szDestDir, szCurDir, tmpname, &size);
+    ok (rc == 0x10000 && tmpname[0]==0," expected return 0x10000 and no tempname, got %08x/\'%s\'\n",rc,tmpname);
+}
+
 START_TEST(install)
 {
     test_find_file();
+    test_install_file();
 }