1 files changed, 73 insertions, 0 deletions
diff --git a/libasn1fix/asn1fix_retrieve.h b/libasn1fix/asn1fix_retrieve.h
new file mode 100644
index 00000000..47aa0a5b
--- /dev/null
+++ b/libasn1fix/asn1fix_retrieve.h
@@ -0,0 +1,73 @@
+/*
+ * Miscellaneous functions necessary for several other modules.
+ */
+#ifndef	_ASN1FIX_RETRIEVE_H_
+#define	_ASN1FIX_RETRIEVE_H_
+
+/*
+ * Simple search for the label in the descendants of the given node.
+ * ERRORS:
+ * NULL/ESRCH
+ */
+asn1p_expr_t *asn1f_lookup_child(asn1p_expr_t *tc, const char *name);
+
+/*
+ * Return a module which contain a specified name, as stated in appropriate
+ * IMPORTS section of the current module (arg->mod).
+ *
+ * RETURN VALUES:
+ * NULL/ESRCH:	The name was not found in IMPORTS section.
+ * NULL/EPERM:	The name was not found in EXPORTS section of the source module.
+ * Also, NULL with errno values defined by asn1f_lookup_module().
+ */
+asn1p_module_t *asn1f_lookup_in_imports(arg_t *arg, const char *name);
+
+/*
+ * Return a module by its name or optional OID.
+ *
+ * RETURN VALUES:
+ * NULL/ENOENT:	No module was found by the specified name and oid
+ * NULL/ETOOMANYREFS:	Several modules are matching the specified name and oid
+ */
+asn1p_module_t *asn1f_lookup_module(arg_t *arg,
+		const char *module_name,
+		asn1p_oid_t *module_oid);
+
+/*
+ * Return the reference to a destination of the given reference,
+ * symbol lookup. Not a recursive function.
+ * Optional module reference may be assigned a module in which the
+ * particular expr was found.
+ */
+asn1p_expr_t *asn1f_lookup_symbol(arg_t *arg, asn1p_ref_t *ref,
+		asn1p_module_t **opt_module_r);
+
+/*
+ * Recursively find the original type for the given expression.
+ * i.e.:
+ * If the original specification defines
+ * 	v Type1 ::= 5
+ * 	Type1 ::= Type2 (1..5)
+ * 	Type3 ::= Type4 (2..7)
+ * 	Type4 ::= INTEGER (1..10)
+ * Then this function, given the the first expression as an argument,
+ * would return an expression for Type4.
+ * WARNING: No attempts are made to honor constraints at this moment.
+ */
+asn1p_expr_t *asn1f_find_terminal_type(arg_t *arg, asn1p_expr_t *tc,
+	asn1p_module_t **opt_module_r);
+
+/*
+ * Recursively find the original value for the given expression.
+ * i.e.:
+ * If the original specification defines
+ * 	v Type1 ::= value
+ * 	value Type2 ::= value2
+ * 	value2 Type3 ::= 3
+ * Then this function will return the expression for value2 if given
+ * the v as an argment.
+ */
+asn1p_expr_t *asn1f_find_terminal_value(arg_t *arg, asn1p_expr_t *tc,
+	asn1p_module_t **opt_module_r);
+
+#endif	/* _ASN1FIX_RETRIEVE_H_ */