remove libasn1c dependency and use asn1c without libasn1c
TODO: re-introduce talloc integration for asn1 runtime
Change-Id: I2140509c5359727f304470249be2a726b9a8deb1
diff --git a/include/osmocom/rspro/asn_internal.h b/include/osmocom/rspro/asn_internal.h
new file mode 100644
index 0000000..561dcf6
--- /dev/null
+++ b/include/osmocom/rspro/asn_internal.h
@@ -0,0 +1,130 @@
+/*-
+ * Copyright (c) 2003, 2004, 2005, 2007 Lev Walkin <vlm@lionet.info>.
+ * All rights reserved.
+ * Redistribution and modifications are permitted subject to BSD license.
+ */
+/*
+ * Declarations internally useful for the ASN.1 support code.
+ */
+#ifndef _ASN_INTERNAL_H_
+#define _ASN_INTERNAL_H_
+
+#include "asn_application.h" /* Application-visible API */
+
+#ifndef __NO_ASSERT_H__ /* Include assert.h only for internal use. */
+#include <assert.h> /* for assert() macro */
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Environment version might be used to avoid running with the old library */
+#define ASN1C_ENVIRONMENT_VERSION 924 /* Compile-time version */
+int get_asn1c_environment_version(void); /* Run-time version */
+
+#define CALLOC(nmemb, size) calloc(nmemb, size)
+#define MALLOC(size) malloc(size)
+#define REALLOC(oldptr, size) realloc(oldptr, size)
+#define FREEMEM(ptr) free(ptr)
+
+#define asn_debug_indent 0
+#define ASN_DEBUG_INDENT_ADD(i) do{}while(0)
+
+/*
+ * A macro for debugging the ASN.1 internals.
+ * You may enable or override it.
+ */
+#ifndef ASN_DEBUG /* If debugging code is not defined elsewhere... */
+#if EMIT_ASN_DEBUG == 1 /* And it was asked to emit this code... */
+#ifdef __GNUC__
+#ifdef ASN_THREAD_SAFE
+/* Thread safety requires sacrifice in output indentation:
+ * Retain empty definition of ASN_DEBUG_INDENT_ADD. */
+#else /* !ASN_THREAD_SAFE */
+#undef ASN_DEBUG_INDENT_ADD
+#undef asn_debug_indent
+int asn_debug_indent;
+#define ASN_DEBUG_INDENT_ADD(i) do { asn_debug_indent += i; } while(0)
+#endif /* ASN_THREAD_SAFE */
+extern int asn_debug; /* Allow option on execution */
+#define ASN_DEBUG(fmt, args...) \
+if (asn_debug) { \
+ do { \
+ int adi = asn_debug_indent; \
+ while(adi--) fprintf(stderr, " "); \
+ fprintf(stderr, fmt, ##args); \
+ fprintf(stderr, " (%s:%d)\n", \
+ __FILE__, __LINE__); \
+ } while(0); \
+}
+#else /* !__GNUC__ */
+void ASN_DEBUG_f(const char *fmt, ...);
+#define ASN_DEBUG ASN_DEBUG_f
+#endif /* __GNUC__ */
+#else /* EMIT_ASN_DEBUG != 1 */
+static inline void ASN_DEBUG(const char *fmt, ...) { (void)fmt; }
+#endif /* EMIT_ASN_DEBUG */
+#endif /* ASN_DEBUG */
+
+/*
+ * Invoke the application-supplied callback and fail, if something is wrong.
+ */
+#define __ASN_E_cbc(buf, size) (cb((buf), (size), app_key) < 0)
+#define _ASN_E_CALLBACK(foo) do { \
+ if(foo) goto cb_failed; \
+ } while(0)
+#define _ASN_CALLBACK(buf, size) \
+ _ASN_E_CALLBACK(__ASN_E_cbc(buf, size))
+#define _ASN_CALLBACK2(buf1, size1, buf2, size2) \
+ _ASN_E_CALLBACK(__ASN_E_cbc(buf1, size1) || __ASN_E_cbc(buf2, size2))
+#define _ASN_CALLBACK3(buf1, size1, buf2, size2, buf3, size3) \
+ _ASN_E_CALLBACK(__ASN_E_cbc(buf1, size1) \
+ || __ASN_E_cbc(buf2, size2) \
+ || __ASN_E_cbc(buf3, size3))
+
+#define _i_ASN_TEXT_INDENT(nl, level) do { \
+ int __level = (level); \
+ int __nl = ((nl) != 0); \
+ int __i; \
+ if(__nl) _ASN_CALLBACK("\n", 1); \
+ if(__level < 0) __level = 0; \
+ for(__i = 0; __i < __level; __i++) \
+ _ASN_CALLBACK(" ", 4); \
+ er.encoded += __nl + 4 * __level; \
+} while(0)
+
+#define _i_INDENT(nl) do { \
+ int __i; \
+ if((nl) && cb("\n", 1, app_key) < 0) return -1; \
+ for(__i = 0; __i < ilevel; __i++) \
+ if(cb(" ", 4, app_key) < 0) return -1; \
+} while(0)
+
+/*
+ * Check stack against overflow, if limit is set.
+ */
+#define _ASN_DEFAULT_STACK_MAX (30000)
+static inline int
+_ASN_STACK_OVERFLOW_CHECK(asn_codec_ctx_t *ctx) {
+ if(ctx && ctx->max_stack_size) {
+
+ /* ctx MUST be allocated on the stack */
+ ptrdiff_t usedstack = ((char *)ctx - (char *)&ctx);
+ if(usedstack > 0) usedstack = -usedstack; /* grows up! */
+
+ /* double negative required to avoid int wrap-around */
+ if(usedstack < -(ptrdiff_t)ctx->max_stack_size) {
+ ASN_DEBUG("Stack limit %ld reached",
+ (long)ctx->max_stack_size);
+ return -1;
+ }
+ }
+ return 0;
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _ASN_INTERNAL_H_ */