Add implementation of fdprintf, clearenv, and stubs for ttyname_r, *usershell

Change-Id:	I5fe7e8b6ee5edbb49e707c3b6737a58563781fa3

1 files changed, 58 insertions, 0 deletions

diff --git a/libc/bionic/fdprintf.c b/libc/bionic/fdprintf.c
new file mode 100644
index 0000000..c1d05ad
--- /dev/null
+++ b/libc/bionic/fdprintf.c
@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <stdio.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+int vfdprintf(int fd, const char * __restrict format, __va_list ap)
+{
+	char *buf=0;
+	int ret;
+	ret = vasprintf(&buf, format, ap);
+	if (ret < 0)
+		goto end;
+
+	ret = write(fd, buf, ret);
+	free(buf);
+end:
+	return ret;
+}
+
+int fdprintf(int fd, const char * __restrict format, ...)
+{
+	__va_list ap;
+	int ret;
+
+	va_start(ap, format);
+	ret = vfdprintf(fd, format, ap);
+	va_end(ap);
+
+	return ret;
+}