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127 lines
3.7 KiB
C
127 lines
3.7 KiB
C
10 years ago
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/*-
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* Copyright (c) 2003, 2004, 2005, 2007 Lev Walkin <vlm@lionet.info>.
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* All rights reserved.
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* Redistribution and modifications are permitted subject to BSD license.
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*/
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/*
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* Declarations internally useful for the ASN.1 support code.
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*/
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#ifndef _ASN_INTERNAL_H_
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#define _ASN_INTERNAL_H_
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#include "asn_application.h" /* Application-visible API */
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#ifndef __NO_ASSERT_H__ /* Include assert.h only for internal use. */
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#include <assert.h> /* for assert() macro */
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Environment version might be used to avoid running with the old library */
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#define ASN1C_ENVIRONMENT_VERSION 923 /* Compile-time version */
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int get_asn1c_environment_version(void); /* Run-time version */
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#define CALLOC(nmemb, size) calloc(nmemb, size)
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#define MALLOC(size) malloc(size)
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#define REALLOC(oldptr, size) realloc(oldptr, size)
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#define FREEMEM(ptr) free(ptr)
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#define asn_debug_indent 0
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#define ASN_DEBUG_INDENT_ADD(i) do{}while(0)
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/*
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* A macro for debugging the ASN.1 internals.
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* You may enable or override it.
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*/
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#ifndef ASN_DEBUG /* If debugging code is not defined elsewhere... */
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#if EMIT_ASN_DEBUG == 1 /* And it was asked to emit this code... */
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#ifdef __GNUC__
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#ifdef ASN_THREAD_SAFE
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/* Thread safety requires sacrifice in output indentation:
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* Retain empty definition of ASN_DEBUG_INDENT_ADD. */
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#else /* !ASN_THREAD_SAFE */
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#undef ASN_DEBUG_INDENT_ADD
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#undef asn_debug_indent
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int asn_debug_indent;
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#define ASN_DEBUG_INDENT_ADD(i) do { asn_debug_indent += i; } while(0)
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#endif /* ASN_THREAD_SAFE */
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#define ASN_DEBUG(fmt, args...) do { \
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int adi = asn_debug_indent; \
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while(adi--) fprintf(stderr, " "); \
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fprintf(stderr, fmt, ##args); \
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fprintf(stderr, " (%s:%d)\n", \
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__FILE__, __LINE__); \
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} while(0)
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#else /* !__GNUC__ */
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void ASN_DEBUG_f(const char *fmt, ...);
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#define ASN_DEBUG ASN_DEBUG_f
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#endif /* __GNUC__ */
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#else /* EMIT_ASN_DEBUG != 1 */
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static inline void ASN_DEBUG(const char *fmt, ...) { (void)fmt; }
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#endif /* EMIT_ASN_DEBUG */
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#endif /* ASN_DEBUG */
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/*
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* Invoke the application-supplied callback and fail, if something is wrong.
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*/
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#define __ASN_E_cbc(buf, size) (cb((buf), (size), app_key) < 0)
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#define _ASN_E_CALLBACK(foo) do { \
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if(foo) goto cb_failed; \
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} while(0)
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#define _ASN_CALLBACK(buf, size) \
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_ASN_E_CALLBACK(__ASN_E_cbc(buf, size))
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#define _ASN_CALLBACK2(buf1, size1, buf2, size2) \
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_ASN_E_CALLBACK(__ASN_E_cbc(buf1, size1) || __ASN_E_cbc(buf2, size2))
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#define _ASN_CALLBACK3(buf1, size1, buf2, size2, buf3, size3) \
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_ASN_E_CALLBACK(__ASN_E_cbc(buf1, size1) \
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|| __ASN_E_cbc(buf2, size2) \
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|| __ASN_E_cbc(buf3, size3))
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#define _i_ASN_TEXT_INDENT(nl, level) do { \
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int __level = (level); \
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int __nl = ((nl) != 0); \
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int __i; \
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if(__nl) _ASN_CALLBACK("\n", 1); \
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if(__level < 0) __level = 0; \
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for(__i = 0; __i < __level; __i++) \
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_ASN_CALLBACK(" ", 4); \
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er.encoded += __nl + 4 * __level; \
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} while(0)
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#define _i_INDENT(nl) do { \
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int __i; \
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if((nl) && cb("\n", 1, app_key) < 0) return -1; \
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for(__i = 0; __i < ilevel; __i++) \
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if(cb(" ", 4, app_key) < 0) return -1; \
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} while(0)
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/*
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* Check stack against overflow, if limit is set.
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*/
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#define _ASN_DEFAULT_STACK_MAX (30000)
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static inline int
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_ASN_STACK_OVERFLOW_CHECK(asn_codec_ctx_t *ctx) {
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if(ctx && ctx->max_stack_size) {
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/* ctx MUST be allocated on the stack */
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ptrdiff_t usedstack = ((char *)ctx - (char *)&ctx);
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if(usedstack > 0) usedstack = -usedstack; /* grows up! */
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/* double negative required to avoid int wrap-around */
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if(usedstack < -(ptrdiff_t)ctx->max_stack_size) {
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ASN_DEBUG("Stack limit %ld reached",
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(long)ctx->max_stack_size);
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return -1;
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}
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}
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return 0;
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}
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#ifdef __cplusplus
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}
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#endif
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#endif /* _ASN_INTERNAL_H_ */
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