From 61ba39a23786a7ae9694705af1d146c00a319144 Mon Sep 17 00:00:00 2001 From: "Nicolas \"Pixel\" Noble" Date: Sat, 5 Feb 2011 04:35:27 +0100 Subject: Getting rid of newlib, starting to implement a libc. Highly experimental, highly untested. --- libc/src/read.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) create mode 100644 libc/src/read.c (limited to 'libc/src/read.c') diff --git a/libc/src/read.c b/libc/src/read.c new file mode 100644 index 0000000..aeea537 --- /dev/null +++ b/libc/src/read.c @@ -0,0 +1,21 @@ +#include "reent.h" +#include "errno.h" +#include + +ssize_t read(int fd, void * buf, size_t size) { + ssize_t r; + + if (!fio_is_open(fd)) { + _impure_ptr->_errno = EBADF; + return -1; + } + + r = fio_read(fd, buf, size); + + if (r < 0) { + _impure_ptr->_errno = EINVAL; + return -1; + } + + return r; +} -- cgit v1.2.3