The fix is to look at mode, not oflags since "w+" will set O_RDWR,
not O_WRONLY.
- todd
Index: lib/libc/stdio/fmemopen.c
===================================================================
RCS file: /cvs/src/lib/libc/stdio/fmemopen.c,v
retrieving revision 1.3
diff -u -p -u -r1.3 fmemopen.c
--- lib/libc/stdio/fmemopen.c 31 Aug 2015 02:53:57 -0000 1.3
+++ lib/libc/stdio/fmemopen.c 14 Aug 2020 01:18:39 -0000
@@ -144,7 +144,7 @@ fmemopen(void *buf, size_t size, const c
}
st->pos = 0;
- st->len = (oflags & O_WRONLY) ? 0 : size;
+ st->len = *mode == 'w' ? 0 : size;
st->size = size;
st->update = oflags & O_RDWR;
