| /*- |
| * 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_ */ |