user/libc: camellia_open, takes cwd into account

1 files changed, 30 insertions, 0 deletions

diff --git a/src/user/lib/camellia.c b/src/user/lib/camellia.c
new file mode 100644
index 0000000..1aa8402
--- /dev/null
+++ b/src/user/lib/camellia.c
@@ -0,0 +1,30 @@
+#include <camellia.h>
+#include <camellia/syscalls.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+handle_t camellia_open(const char *path, int flags) {
+	handle_t ret;
+	char *buf;
+	size_t len;
+
+	if (path == NULL)
+		return errno = EINVAL, -EINVAL;
+	if (flags & OPEN_CREATE)
+		flags |= OPEN_WRITE;
+
+	len = absolutepath(NULL, path, 0);
+	buf = malloc(len);
+	if (!buf)
+		return -errno;
+	absolutepath(buf, path, len);
+	ret = _syscall_open(buf, strlen(buf), flags);
+	free(buf);
+
+	if (ret < 0)
+		errno = -ret;
+
+	return ret;
+}