extract.c: replace tempnam() with mkstemp() on non-Windows
[wimlib] / src / extract.c
index 39da4be..496d9c9 100644 (file)
@@ -41,6 +41,7 @@
 
 #include <errno.h>
 #include <fcntl.h>
+#include <stdlib.h>
 #include <sys/stat.h>
 #include <unistd.h>
 
@@ -315,27 +316,33 @@ static int
 create_temporary_file(struct filedes *fd_ret, tchar **name_ret)
 {
        tchar *name;
-       int open_flags;
        int raw_fd;
 
+#ifdef __WIN32__
 retry:
-       name = ttempnam(NULL, T("wimlib"));
+       name = _wtempnam(NULL, L"wimlib");
        if (!name) {
                ERROR_WITH_ERRNO("Failed to create temporary filename");
                return WIMLIB_ERR_NOMEM;
        }
-
-       open_flags = O_WRONLY | O_CREAT | O_EXCL | O_BINARY;
-#ifdef __WIN32__
-       open_flags |= _O_SHORT_LIVED;
-#endif
-       raw_fd = topen(name, open_flags, 0600);
+       raw_fd = _wopen(name, O_WRONLY | O_CREAT | O_EXCL | O_BINARY |
+                       _O_SHORT_LIVED, 0600);
+       if (raw_fd < 0 && errno == EEXIST) {
+               FREE(name);
+               goto retry;
+       }
+#else /* __WIN32__ */
+       const char *tmpdir = getenv("TMPDIR");
+       if (!tmpdir)
+               tmpdir = P_tmpdir;
+       name = MALLOC(strlen(tmpdir) + 1 + 6 + 6 + 1);
+       if (!name)
+               return WIMLIB_ERR_NOMEM;
+       sprintf(name, "%s/wimlibXXXXXX", tmpdir);
+       raw_fd = mkstemp(name);
+#endif /* !__WIN32__ */
 
        if (raw_fd < 0) {
-               if (errno == EEXIST) {
-                       FREE(name);
-                       goto retry;
-               }
                ERROR_WITH_ERRNO("Failed to create temporary file "
                                 "\"%"TS"\"", name);
                FREE(name);