X-Git-Url: https://git.stg.codes/stg.git/blobdiff_plain/8c6fa3fbaccc22127280bf77a48fab5a3ee0716e..46b0747592074017ff0ea4b33d4a7194235886e5:/libs/smux/include/stg/asn_internal.h

diff --git a/libs/smux/include/stg/asn_internal.h b/libs/smux/include/stg/asn_internal.h
new file mode 100644
index 00000000..67f055a6
--- /dev/null
+++ b/libs/smux/include/stg/asn_internal.h
@@ -0,0 +1,111 @@
+/*-
+ * Copyright (c) 2003, 2004, 2005 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	920	/* 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)
+
+/*
+ * 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__
+#define	ASN_DEBUG(fmt, args...)	do {		\
+		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);				\
+	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_ */