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-rw-r--r--libc-bottom-half/cloudlibc/src/libc/unistd/read.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/libc-bottom-half/cloudlibc/src/libc/unistd/read.c b/libc-bottom-half/cloudlibc/src/libc/unistd/read.c
new file mode 100644
index 0000000..1582126
--- /dev/null
+++ b/libc-bottom-half/cloudlibc/src/libc/unistd/read.c
@@ -0,0 +1,18 @@
+// Copyright (c) 2015-2016 Nuxi, https://nuxi.nl/
+//
+// SPDX-License-Identifier: BSD-2-Clause
+
+#include <wasi/api.h>
+#include <errno.h>
+#include <unistd.h>
+
+ssize_t read(int fildes, void *buf, size_t nbyte) {
+ __wasi_iovec_t iov = {.buf = buf, .buf_len = nbyte};
+ size_t bytes_read;
+ __wasi_errno_t error = __wasi_fd_read(fildes, &iov, 1, &bytes_read);
+ if (error != 0) {
+ errno = error == ENOTCAPABLE ? EBADF : error;
+ return -1;
+ }
+ return bytes_read;
+}