mingw.c: make fopen support /dev/null (needed for cmp iirc)

2 files changed, 11 insertions, 0 deletions

diff --git a/include/mingw.h b/include/mingw.h
index eae6a7d3a..763606e51 100644
--- a/include/mingw.h
+++ b/include/mingw.h
@@ -141,6 +141,9 @@ int link(const char *oldpath, const char *newpath);
 int mingw_open (const char *filename, int oflags, ...);
 #define open mingw_open
 
+FILE* mingw_fopen (const char *filename, const char *mode);
+#define fopen mingw_fopen
+
 int mingw_close (int fd);
 #define close mingw_close
 
diff --git a/libbb/mingw.c b/libbb/mingw.c
index eb239bbd6..62aad5d7e 100644
--- a/libbb/mingw.c
+++ b/libbb/mingw.c
@@ -150,6 +150,14 @@ int mingw_open (const char *filename, int oflags, ...)
         return fd;
 }
 
+#undef fopen
+FILE *mingw_fopen (const char *filename, const char *mode)
+{
+        if (!strcmp(filename, "/dev/null"))
+                filename = "nul";
+        return fopen(filename, mode);
+}
+
 #undef close
 int mingw_close (int fd)
 {