From 4e09bca9e34c226b6d7e34b4fa11248405fd988e Mon Sep 17 00:00:00 2001 From: Anton Kling Date: Sun, 22 Oct 2023 19:50:38 +0200 Subject: Move everything into a new repo. --- userland/libc/stdio/fileno.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) create mode 100644 userland/libc/stdio/fileno.c (limited to 'userland/libc/stdio/fileno.c') diff --git a/userland/libc/stdio/fileno.c b/userland/libc/stdio/fileno.c new file mode 100644 index 0000000..246cc51 --- /dev/null +++ b/userland/libc/stdio/fileno.c @@ -0,0 +1,13 @@ +#include +#include + +// https://pubs.opengroup.org/onlinepubs/9699919799/functions/fileno.html +// The fileno() function shall return the integer file descriptor associated +// with the stream pointed to by stream. +int fileno(FILE *stream) { + if (-1 == stream->fd) { + errno = EBADF; + return -1; + } + return stream->fd; +} -- cgit v1.2.3