[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit

Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/app/busybox/src/shell/shell_common.h b/ap/app/busybox/src/shell/shell_common.h
new file mode 100644
index 0000000..993ed59
--- /dev/null
+++ b/ap/app/busybox/src/shell/shell_common.h
@@ -0,0 +1,51 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Adapted from ash applet code
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * Copyright (c) 1989, 1991, 1993, 1994
+ *      The Regents of the University of California.  All rights reserved.
+ *
+ * Copyright (c) 1997-2005 Herbert Xu <herbert@gondor.apana.org.au>
+ * was re-ported from NetBSD and debianized.
+ *
+ * Copyright (c) 2010 Denys Vlasenko
+ * Split from ash.c
+ *
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
+ */
+#ifndef SHELL_COMMON_H
+#define SHELL_COMMON_H 1
+
+PUSH_AND_SET_FUNCTION_VISIBILITY_TO_HIDDEN
+
+extern const char defifsvar[] ALIGN1; /* "IFS= \t\n" */
+#define defifs (defifsvar + 4)
+
+int FAST_FUNC is_well_formed_var_name(const char *s, char terminator);
+
+/* Builtins */
+
+enum {
+	BUILTIN_READ_SILENT = 1 << 0,
+	BUILTIN_READ_RAW    = 1 << 1,
+};
+const char* FAST_FUNC
+shell_builtin_read(void FAST_FUNC (*setvar)(const char *name, const char *val),
+	char       **argv,
+	const char *ifs,
+	int        read_flags,
+	const char *opt_n,
+	const char *opt_p,
+	const char *opt_t,
+	const char *opt_u
+);
+
+int FAST_FUNC
+shell_builtin_ulimit(char **argv);
+
+POP_SAVED_FUNCTION_VISIBILITY
+
+#endif