tls: avoid unnecessary changes to POSIX build, part 2

On reflection, the previous commit may have been ill-advised.  There
are many calls to open_read_close() and most shouldn't be able to
access special devices.  (Though in practice only a few are enabled
in busybox-w32.)

Nonetheless, I've implemented a new mechanism which uses the macro
MINGW_SPECIAL() to mark calls to functions that are allowed to
access special devices.

An unrelated change is to avoid compiling fputs_stdout() in
coreutils/printf.c for the POSIX build.

1 files changed, 0 insertions, 7 deletions

diff --git a/libbb/read.c b/libbb/read.c
index 2e4317cd5..a342506a8 100644
--- a/libbb/read.c
+++ b/libbb/read.c
@@ -73,14 +73,7 @@ ssize_t FAST_FUNC read_close(int fd, void *buf, size_t size)
 
 ssize_t FAST_FUNC open_read_close(const char *filename, void *buf, size_t size)
 {
-#if !ENABLE_PLATFORM_MINGW32
         int fd = open(filename, O_RDONLY);
-#else
-        int fd, flag;
-
-        flag = O_RDONLY | (get_dev_type(filename) == DEV_URANDOM ? O_SPECIAL : 0);
-        fd = mingw_open(filename, flag);
-#endif
         if (fd < 0)
                 return fd;
         return read_close(fd, buf, size);