Replace _wcserror_s for Windows XP compatibility

[wimlib] / src / win32.c

diff --git a/src/win32.c b/src/win32.c
index 3dc20a9422e74bfae46881dda8c553c9c648d906..7636c5fe9d9b05d9b2d293890626cfdc4d801d17 100644 (file)
--- a/src/win32.c
+++ b/src/win32.c
@@ -39,6 +39,7 @@
 #include "lookup_table.h"
 #include "security.h"
 #include "endianness.h"
+#include <pthread.h>
 
 #include <errno.h>
 
@@ -1534,4 +1535,20 @@ fail:
        return -1;
 }
 
+
+/* This really could be replaced with _wcserror_s, but this doesn't seem to
+ * actually be available in MSVCRT.DLL on Windows XP (perhaps it's statically
+ * linked in by Visual Studio...?). */
+extern int
+win32_strerror_r_replacement(int errnum, wchar_t *buf, size_t buflen)
+{
+       static pthread_mutex_t strerror_lock = PTHREAD_MUTEX_INITIALIZER;
+
+       pthread_mutex_lock(&strerror_lock);
+       mbstowcs(buf, strerror(errnum), buflen);
+       buf[buflen - 1] = '\0';
+       pthread_mutex_unlock(&strerror_lock);
+       return 0;
+}
+
 #endif /* __WIN32__ */