fix dup3 ignoring all flags but O_CLOEXEC on archs with SYS_dup2 syscall

[musl] / src / stdio / fopencookie.c

diff --git a/src/stdio/fopencookie.c b/src/stdio/fopencookie.c
index 2f46dd5..da042fe 100644 (file)
--- a/src/stdio/fopencookie.c
+++ b/src/stdio/fopencookie.c
@@ -116,15 +116,12 @@ FILE *fopencookie(void *cookie, const char *mode, cookie_io_functions_t iofuncs)
 
        /* Set up our fcookie */
        f->fc.cookie = cookie;
-       f->fc.iofuncs.read = iofuncs.read;
-       f->fc.iofuncs.write = iofuncs.write;
-       f->fc.iofuncs.seek = iofuncs.seek;
-       f->fc.iofuncs.close = iofuncs.close;
+       f->fc.iofuncs = iofuncs;
 
        f->f.fd = -1;
        f->f.cookie = &f->fc;
        f->f.buf = f->buf + UNGET;
-       f->f.buf_size = BUFSIZ;
+       f->f.buf_size = sizeof f->buf - UNGET;
        f->f.lbf = EOF;
 
        /* Initialize op ptrs. No problem if some are unneeded. */