[misc] fix coverity warnings

_coverity.cmd

@@ -5,6 +5,9 @@ set PWD=%~dp0
 rmdir cov-int /s /q >NUL 2>NUL
 del cov-int.zip >NUL 2>NUL
 mkdir cov-int
+rem *** for when/if Coverity manage to clean their act
+rem cov-build --dir cov-int msbuild rufus.sln /p:Configuration=Release,Platform=x86_32 /maxcpucount
+rem cov-build --dir cov-int C:\msys64\usr\bin\bash -cl "export PATH=/mingw32/bin:$PATH; cd /c/rufus; ./configure --build=i686-w64-mingw32 --host=i686-w64-mingw32 --disable-debug; make -j4"
 cov-build --dir cov-int wdk_build.cmd
 rem *** zip script by Peter Mortensen - http://superuser.com/a/111266/286681
 echo Set objArgs = WScript.Arguments> zip.vbs

src/dev.c

@@ -227,8 +227,9 @@ BOOL GetOpticalMedia(IMG_SAVE* img_save)
 			buffer = malloc(2048);
 			if ((buffer != NULL) && (SetFilePointerEx(hDrive, li, NULL, FILE_BEGIN)) &&
 				ReadFile(hDrive, buffer, 2048, &size, NULL) && (size == 2048)) {
-				safe_strcpy(label, sizeof(label), (char*)&buffer[0x28]);
-				for (k = safe_strlen(label) - 1; (k >= 0) && (label[k] == 0x20); k--)
+				memcpy(label, &buffer[0x28], sizeof(label) - 1);
+				label[sizeof(label) - 1] = 0;
+				for (k = strlen(label) - 1; (k >= 0) && (label[k] == 0x20); k--)
 					label[k] = 0;
 				img_save->Label = label;
 			}

src/format.c

@@ -1216,7 +1216,10 @@ static BOOL SetupWinPE(char drive_letter)
 		uprintf("Could not read file %s: %s\n", dst, WindowsErrorString());
 		goto out;
 	}
-	SetFilePointerEx(handle, liZero, NULL, FILE_BEGIN);
+	if (!SetFilePointerEx(handle, liZero, NULL, FILE_BEGIN)) {
+		uprintf("Could not rewind file %s: %s\n", dst, WindowsErrorString());
+		goto out;
+	}
 
 	// Patch setupldr.bin
 	uprintf("Patching file %s\n", dst);
@@ -1553,13 +1556,16 @@ static BOOL WriteDrive(HANDLE hPhysicalDrive, HANDLE hSourceImage)
 				if ((s) && (wSize == rSize))
 					break;
 				if (s)
-					uprintf("write error: Wrote %d bytes, expected %d bytes\n", wSize, rSize);
+					uprintf("write error: Wrote %d bytes, expected %d bytes", wSize, rSize);
 				else
 					uprintf("write error: %s", WindowsErrorString());
 				if (i < WRITE_RETRIES - 1) {
 					li.QuadPart = wb;
-					SetFilePointerEx(hPhysicalDrive, li, NULL, FILE_BEGIN);
 					uprintf("  RETRYING...\n");
+					if (!SetFilePointerEx(hPhysicalDrive, li, NULL, FILE_BEGIN)) {
+						uprintf("write error: could not reset position - %s", WindowsErrorString());
+						goto out;
+					}
 				} else {
 					FormatStatus = ERROR_SEVERITY_ERROR | FAC(FACILITY_STORAGE) | ERROR_WRITE_FAULT;
 					goto out;
@@ -2136,8 +2142,11 @@ DWORD WINAPI SaveImageThread(void* param)
 				uprintf("write error: %s", WindowsErrorString());
 			if (i < WRITE_RETRIES-1) {
 				li.QuadPart = wb;
-				SetFilePointerEx(hDestImage, li, NULL, FILE_BEGIN);
 				uprintf("  RETRYING...\n");
+				if (!SetFilePointerEx(hDestImage, li, NULL, FILE_BEGIN)) {
+					uprintf("write error: could not reset position - %s", WindowsErrorString());
+					goto out;
+				}
 			} else {
 				FormatStatus = ERROR_SEVERITY_ERROR|FAC(FACILITY_STORAGE)|ERROR_WRITE_FAULT;
 				goto out;

src/rufus.rc

@@ -33,7 +33,7 @@ LANGUAGE LANG_NEUTRAL, SUBLANG_NEUTRAL
 IDD_DIALOG DIALOGEX 12, 12, 242, 376
 STYLE DS_SETFONT | DS_MODALFRAME | DS_CENTER | WS_MINIMIZEBOX | WS_POPUP | WS_CAPTION | WS_SYSMENU
 EXSTYLE WS_EX_ACCEPTFILES
-CAPTION "Rufus 2.12.1014"
+CAPTION "Rufus 2.12.1015"
 FONT 8, "Segoe UI Symbol", 400, 0, 0x0
 BEGIN
     LTEXT           "Device",IDS_DEVICE_TXT,9,6,200,8
@@ -334,8 +334,8 @@ END
 //
 
 VS_VERSION_INFO VERSIONINFO
- FILEVERSION 2,12,1014,0
- PRODUCTVERSION 2,12,1014,0
+ FILEVERSION 2,12,1015,0
+ PRODUCTVERSION 2,12,1015,0
  FILEFLAGSMASK 0x3fL
 #ifdef _DEBUG
  FILEFLAGS 0x1L
@@ -352,13 +352,13 @@ BEGIN
         BEGIN
             VALUE "CompanyName", "Akeo Consulting (http://akeo.ie)"
             VALUE "FileDescription", "Rufus"
-            VALUE "FileVersion", "2.12.1014"
+            VALUE "FileVersion", "2.12.1015"
             VALUE "InternalName", "Rufus"
             VALUE "LegalCopyright", "© 2011-2017 Pete Batard (GPL v3)"
             VALUE "LegalTrademarks", "http://www.gnu.org/copyleft/gpl.html"
             VALUE "OriginalFilename", "rufus.exe"
             VALUE "ProductName", "Rufus"
-            VALUE "ProductVersion", "2.12.1014"
+            VALUE "ProductVersion", "2.12.1015"
         END
     END
     BLOCK "VarFileInfo"