/*- * 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_ */