libc-bottom-half/cloudlibc/src/libc/unistd/write.c

   1 // Copyright (c) 2015-2016 Nuxi, https://nuxi.nl/
   2 //
   3 // SPDX-License-Identifier: BSD-2-Clause
   4
   5 #include <wasi/core.h>
   6 #include <errno.h>
   7 #include <unistd.h>
   8
   9 ssize_t write(int fildes, const void *buf, size_t nbyte) {
  10   __wasi_ciovec_t iov = {.buf = buf, .buf_len = nbyte};
  11   size_t bytes_written;
  12   __wasi_errno_t error =
  13       __wasi_fd_write(fildes, &iov, 1, &bytes_written);
  14   if (error != 0) {
  15     errno = error == ENOTCAPABLE ? EBADF : error;
  16     return -1;
  17   }
  18   return bytes_written;
  19 }