summaryrefslogtreecommitdiffstats
path: root/libc-top-half/musl/src/stdio/__towrite.c
diff options
context:
space:
mode:
Diffstat (limited to 'libc-top-half/musl/src/stdio/__towrite.c')
-rw-r--r--libc-top-half/musl/src/stdio/__towrite.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/libc-top-half/musl/src/stdio/__towrite.c b/libc-top-half/musl/src/stdio/__towrite.c
new file mode 100644
index 0000000..4c9c66a
--- /dev/null
+++ b/libc-top-half/musl/src/stdio/__towrite.c
@@ -0,0 +1,23 @@
+#include "stdio_impl.h"
+
+int __towrite(FILE *f)
+{
+ f->mode |= f->mode-1;
+ if (f->flags & F_NOWR) {
+ f->flags |= F_ERR;
+ return EOF;
+ }
+ /* Clear read buffer (easier than summoning nasal demons) */
+ f->rpos = f->rend = 0;
+
+ /* Activate write through the buffer. */
+ f->wpos = f->wbase = f->buf;
+ f->wend = f->buf + f->buf_size;
+
+ return 0;
+}
+
+hidden void __towrite_needs_stdio_exit()
+{
+ __stdio_exit_needed();
+}