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-rw-r--r--libc-bottom-half/cloudlibc/src/libc/unistd/readlinkat.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/libc-bottom-half/cloudlibc/src/libc/unistd/readlinkat.c b/libc-bottom-half/cloudlibc/src/libc/unistd/readlinkat.c
new file mode 100644
index 0000000..7a3bce2
--- /dev/null
+++ b/libc-bottom-half/cloudlibc/src/libc/unistd/readlinkat.c
@@ -0,0 +1,21 @@
+// Copyright (c) 2015-2016 Nuxi, https://nuxi.nl/
+//
+// SPDX-License-Identifier: BSD-2-Clause
+
+#include <wasi/api.h>
+#include <errno.h>
+#include <string.h>
+#include <unistd.h>
+
+ssize_t __wasilibc_nocwd_readlinkat(int fd, const char *restrict path, char *restrict buf,
+ size_t bufsize) {
+ size_t bufused;
+ // TODO: Remove the cast on `buf` once the witx is updated with char8 support.
+ __wasi_errno_t error = __wasi_path_readlink(fd, path,
+ (uint8_t*)buf, bufsize, &bufused);
+ if (error != 0) {
+ errno = error;
+ return -1;
+ }
+ return bufused;
+}