win32: Replace open/fopen to support /dev/null

1 files changed, 34 insertions, 0 deletions

diff --git a/win32/mingw.c b/win32/mingw.c
index 5604fdda5..cc266462f 100644
--- a/win32/mingw.c
+++ b/win32/mingw.c
@@ -115,6 +115,40 @@ static int err_win_to_posix(DWORD winerr)
         return error;
 }
 
+#undef open
+int mingw_open (const char *filename, int oflags, ...)
+{
+        va_list args;
+        unsigned mode;
+        int fd;
+
+        va_start(args, oflags);
+        mode = va_arg(args, int);
+        va_end(args);
+
+        if (oflags & O_NONBLOCK) {
+                errno = ENOSYS;
+                return -1;
+        }
+        if (!strcmp(filename, "/dev/null"))
+                filename = "nul";
+        fd = open(filename, oflags, mode);
+        if (fd < 0 && (oflags & O_CREAT) && errno == EACCES) {
+                DWORD attrs = GetFileAttributes(filename);
+                if (attrs != INVALID_FILE_ATTRIBUTES && (attrs & FILE_ATTRIBUTE_DIRECTORY))
+                        errno = EISDIR;
+        }
+        return fd;
+}
+
+#undef fopen
+FILE *mingw_fopen (const char *filename, const char *mode)
+{
+        if (!strcmp(filename, "/dev/null"))
+                filename = "nul";
+        return fopen(filename, mode);
+}
+
 unsigned int sleep (unsigned int seconds)
 {
         Sleep(seconds*1000);