WindowsXP/Source/XPSP1/NT/sdktools/asn1/asn1c/asn1.c

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2024-08-03 16:30:48 +02:00
/* Copyright (C) Boris Nikolaus, Germany, 1996-1997. All rights reserved. */
/* Copyright (C) Microsoft Corporation, 1997-1998. All rights reserved. */
#include "precomp.h"
#ifndef HAS_GETOPT
extern int getopt(int argc, char **argv, const char *opts);
extern char *optarg;
extern int optind;
#endif
int pass;
/* if ForceAllTypes is set, asn1c will generate encoding functions for */
/* all types (default: only for sequence/set/choice/sequence of/set of) */
int ForceAllTypes = 0;
/* type to use for unconstrained integers/semiconstrained signed integers */
char *IntegerRestriction = "ASN1int32_t";
/* type to use for semiconstrained unsigned integers */
char *UIntegerRestriction = "ASN1uint32_t";
/* type to use for real */
char *RealRestriction = "double";
/* output language */
Language_e g_eProgramLanguage = eLanguage_C;
/* alignment of encoding */
Alignment_e Alignment = eAlignment_Aligned;
/* encoding to generate code for */
Encoding_e g_eEncodingRule = eEncoding_Packed;
/* subencoding to generate code for */
SubEncoding_e g_eSubEncodingRule = eSubEncoding_Basic;
/* target compiler supports 64 bit integers */
int Has64Bits = 0;
/* zero out allocated buffers for decoded data */
int g_fDecZeroMemory = 1;
/* debug module name */
int g_nDbgModuleName = 0;
/* source file and header file pointers */
FILE *g_finc, *g_fout;
// default tag type in this module
TagType_e g_eDefTagType = eTagType_Unknown;
/* original main module name without postfixed _Module */
char *g_pszOrigModuleName = NULL;
char *g_pszOrigModuleNameLowerCase = NULL;
/* enable long name (prefixed with module name for imported) */
int g_fLongNameForImported = 0;
// extra struct type name postfixed with _s, and its original name is its pointer type.
int g_fExtraStructPtrTypeSS = 0;
// the default structure type for Sequence Of and Set Of
TypeRules_e g_eDefTypeRuleSS_NonSized = eTypeRules_SinglyLinkedList;
TypeRules_e g_eDefTypeRuleSS_Sized = eTypeRules_FixedArray;
// ignore the assertion
int g_fNoAssert = 0;
// object identifier is 16-node array
int g_fOidArray = 0;
// case based optimizer switch
int g_fCaseBasedOptimizer = 1;
// enable in-file directive
int g_fMicrosoftExtensions = 1;
// all platforms: little endian (default) and big endian
int g_fAllEndians = 0;
// directive begin, end, AND
int g_chDirectiveBegin = '#';
int g_chDirectiveEnd = '#';
int g_chDirectiveAND = '&';
// postfix
char *g_pszApiPostfix = "ID";
char *g_pszChoicePostfix = "choice";
char *g_pszOptionPostfix = "option";
// option value
char *g_pszOptionValue = "option_bits";
// invisble file array
int g_cGhostFiles = 0;
GhostFile_t g_aGhostFiles[16];
int _cdecl main(int argc, char **argv)
{
FILE *finc, *fout;
char *p;
int c, chInvalidDir;
LLSTATE in, out;
UndefinedSymbol_t *lastundef;
Assignment_t *a, **aa;
LLTERM *tokens;
unsigned ntokens;
int fSupported;
char *psz;
char incfilename[256], outfilename[256], module[256];
/* parse options */
// if an option is followed by ':', then it has a parameter.
while ((c = getopt(argc, argv, "ab:c:d:e:fg:hil:mn:o:p:q:s:t:uv:wy")) != EOF)
{
chInvalidDir = 0;
switch (c)
{
case 'a':
/* enable for all platforms: little endian and big endian */
g_fAllEndians = 1;
break;
case 'b':
/* maximum number of bits of target machine */
if (atoi(optarg) == 32) {
Has64Bits = 0;
break;
}
if (atoi(optarg) == 64) {
Has64Bits = 1;
break;
}
fprintf(stderr, "Bad number of bits specified.\n");
MyExit(1);
/*NOTREACHED*/
case 'c':
// Choice postfix
psz = strdup(optarg);
if (psz && isalpha(*psz))
{
g_pszChoicePostfix = psz;
}
break;
case 'd':
// sequence of and set of data structure types
if (! stricmp(optarg, "linked") || ! stricmp(optarg, "slinked"))
{
g_eDefTypeRuleSS_NonSized = eTypeRules_SinglyLinkedList;
}
else
if (! stricmp(optarg, "lenptr"))
{
g_eDefTypeRuleSS_NonSized = eTypeRules_LengthPointer;
}
else
if (! stricmp(optarg, "dlinked"))
{
g_eDefTypeRuleSS_NonSized = eTypeRules_DoublyLinkedList;
}
else
{
goto usage;
}
break;
case 'e':
/* encoding to generate code for */
if (!stricmp(optarg, "packed"))
{
g_eEncodingRule = eEncoding_Packed;
}
else
if (!stricmp(optarg, "basic"))
{
g_eEncodingRule = eEncoding_Basic;
}
else
if (!stricmp(optarg, "per"))
{
g_eEncodingRule = eEncoding_Packed;
Alignment = eAlignment_Aligned;
}
else
if (!stricmp(optarg, "cer"))
{
g_eEncodingRule = eEncoding_Basic;
g_eSubEncodingRule = eSubEncoding_Canonical;
}
else
if (!stricmp(optarg, "der"))
{
g_eEncodingRule = eEncoding_Basic;
g_eSubEncodingRule = eSubEncoding_Distinguished;
}
else
if (!stricmp(optarg, "ber"))
{
g_eEncodingRule = eEncoding_Basic;
g_eSubEncodingRule = eSubEncoding_Basic;
}
else
{
fprintf(stderr, "Bad encoding specified.\n");
fprintf(stderr, "Allowed encodings are:\n");
fprintf(stderr, "- packed (default)\n");
fprintf(stderr, "- basic\n");
MyExit(1);
/*NOTREACHED*/
}
break;
case 'f':
/* force generation of encoding/decoding functions for all types */
ForceAllTypes = 1;
break;
case 'g':
/* ghost asn1 files */
g_aGhostFiles[g_cGhostFiles].pszFileName = strdup(optarg);
g_aGhostFiles[g_cGhostFiles++].pszModuleName = NULL;
break;
case 'h':
goto usage;
case 'i':
/* ignore assertion */
g_fNoAssert = 1;
break;
case 'l':
/* set output language */
if (!stricmp(optarg, "c")) {
g_eProgramLanguage = eLanguage_C;
break;
}
if (!stricmp(optarg, "c++") || !stricmp(optarg, "cpp")) {
g_eProgramLanguage = eLanguage_Cpp;
break;
}
goto usage;
case 'm':
/* enable Microsoft extension */
g_fMicrosoftExtensions = 1;
break;
case 'n':
/* debug module name */
g_nDbgModuleName = 0;
{
int len = strlen(optarg);
if (len > 4)
len = 4;
memcpy(&g_nDbgModuleName, optarg, len);
}
break;
case 'o':
// Option postfix
psz = strdup(optarg);
if (psz && isalpha(*psz))
{
g_pszOptionPostfix = psz;
}
break;
case 'p':
// API postfix
psz = strdup(optarg);
if (psz && isalpha(*psz))
{
g_pszApiPostfix = psz;
}
break;
case 'q':
// sequence of and set of data structure types
if (! stricmp(optarg, "linked") || ! stricmp(optarg, "slinked"))
{
g_eDefTypeRuleSS_Sized = eTypeRules_SinglyLinkedList;
}
else
if (! stricmp(optarg, "lenptr"))
{
g_eDefTypeRuleSS_Sized = eTypeRules_LengthPointer;
}
else
if (! stricmp(optarg, "array"))
{
g_eDefTypeRuleSS_Sized = eTypeRules_FixedArray;
}
else
if (! stricmp(optarg, "pointer"))
{
g_eDefTypeRuleSS_Sized = eTypeRules_PointerToElement | eTypeRules_FixedArray;
}
else
if (! stricmp(optarg, "dlinked"))
{
g_eDefTypeRuleSS_Sized = eTypeRules_DoublyLinkedList;
}
else
{
goto usage;
}
break;
case 's':
/* set subencoding */
if (!stricmp(optarg, "aligned"))
{
Alignment = eAlignment_Aligned;
}
else
if (!stricmp(optarg, "unaligned"))
{
Alignment = eAlignment_Unaligned;
}
else
if (!stricmp(optarg, "cer"))
{
g_eSubEncodingRule = eSubEncoding_Canonical;
}
else
if (!stricmp(optarg, "der"))
{
g_eSubEncodingRule = eSubEncoding_Distinguished;
}
else
if (!stricmp(optarg, "basic"))
{
g_eSubEncodingRule = eSubEncoding_Basic;
}
else
{
fprintf(stderr, "Bad sub-encoding specified.\n");
fprintf(stderr, "Allowed sub-encodings are:\n");
fprintf(stderr, "- aligned (default) or unaligned\n");
fprintf(stderr, "- basic (default), cer or der\n");
MyExit(1);
/*NOTREACHED*/
}
break;
case 't':
/* specify type to use for unconstrained/semiconstrained types */
p = strchr(optarg, '=');
if (!p)
goto usage;
*p++ = 0;
if (!stricmp(optarg, "integer")) {
if (!stricmp(p, "ASN1int32_t")) {
IntegerRestriction = "ASN1int32_t";
break;
}
if (!stricmp(p, "ASN1uint32_t")) {
IntegerRestriction = "ASN1uint32_t";
break;
}
if (!stricmp(p, "ASN1int64_t")) {
IntegerRestriction = "ASN1int64_t";
break;
}
if (!stricmp(p, "ASN1uint64_t")) {
IntegerRestriction = "ASN1uint64_t";
break;
}
if (!stricmp(p, "ASN1intx_t")) {
IntegerRestriction = "ASN1intx_t";
break;
}
}
if (!stricmp(optarg, "unsigned")) {
if (!stricmp(p, "ASN1int32_t")) {
UIntegerRestriction = "ASN1int32_t";
break;
}
if (!stricmp(p, "ASN1uint32_t")) {
UIntegerRestriction = "ASN1uint32_t";
break;
}
if (!stricmp(p, "ASN1int64_t")) {
UIntegerRestriction = "ASN1int64_t";
break;
}
if (!stricmp(p, "ASN1uint64_t")) {
UIntegerRestriction = "ASN1uint64_t";
break;
}
if (!stricmp(p, "ASN1intx_t")) {
UIntegerRestriction = "ASN1intx_t";
break;
}
}
if (!stricmp(optarg, "real")) {
if (!stricmp(p, "double")) {
RealRestriction = "double";
break;
}
if (!stricmp(p, "ASN1real_t")) {
RealRestriction = "ASN1real_t";
break;
}
}
goto usage;
case 'u':
// no case-based optimizer
g_fCaseBasedOptimizer = 0;
break;
case 'v':
// Option value
psz = strdup(optarg);
if (psz && isalpha(*psz))
{
g_pszOptionValue = psz;
}
break;
case 'w':
// --#OID ARRAY#--
g_fOidArray = 1;
break;
case 'y':
/* enable long name (prefixed with module name for imported) */
g_fLongNameForImported = 1;
break;
default:
chInvalidDir = c;
usage:
fprintf(stderr,"ASN.1 Compiler V1.0\n");
fprintf(stderr, "Copyright (C) Microsoft Corporation, U.S.A., 1997-1998. All rights reserved.\n");
fprintf(stderr, "Copyright (C) Boris Nikolaus, Germany, 1996-1997. All rights reserved.\n");
if (chInvalidDir)
{
fprintf(stderr, "Invalid option -%c\n", chInvalidDir);
}
else
{
fprintf(stderr, "Usage: %s [options] [imported.asn1 ...] main.asn1\n", argv[0]);
fprintf(stderr, "Options:\n");
fprintf(stderr, "-h\t\tthis help\n");
fprintf(stderr, "-z\t\tzero out allocated buffers for decoded data\n");
fprintf(stderr, "-x\t\tbridge APIs\n");
fprintf(stderr, "-a\t\textra type definition for structure\n");
fprintf(stderr, "-n name\t\tmodule name for debugging purpose\n");
// fprintf(stderr, "-l language\tgenerate code for <language> (c (default), c++)\n");
// fprintf(stderr, "-b 64\t\tenable 64 bit support\n");
fprintf(stderr, "-e encoding\tuse <encoding> as encoding rule\n");
fprintf(stderr, "\t\t(possible values: packed (default), basic)\n");
fprintf(stderr, "-s subencoding\tuse <subencoding> as subencoding rules\n");
fprintf(stderr, "\t\t(possible values: aligned (default) or unaligned,\n");
fprintf(stderr, "\t\tbasic (default), canonical or distinguished)\n");
fprintf(stderr, "-t type=rest.\trestrict/unrestrict a unconstrained/semiconstrained type:\n");
fprintf(stderr, "\t\tinteger=type\tuse <type> (ASN1[u]int32_t, ASN1[u]int64_t or\n\t\t\t\tASN1intx_t) for unconstrained integers\n\t\t\t\t(default: ASN1int32_t)\n");
fprintf(stderr, "\t\tunsigned=type\tuse <type> (ASN1[u]int32_t, ASN1[u]int64_t or\n\t\t\t\tASN1intx_t) for positive semiconstrained\n\t\t\t\tintegers (default: ASN1uint32_t)\n");
fprintf(stderr, "\t\treal=type\tuse <type> (double or ASN1real_t) for\n\t\t\t\tunconstrained floating point numbers\n\t\t\t\t(default: double)\n");
}
MyExit(1);
}
}
/* check if any modules are given */
if (argc < optind + 1)
goto usage;
/* check for unsupported encoding */
fSupported = TRUE;
if (g_eEncodingRule == eEncoding_Packed)
{
if (Alignment != eAlignment_Aligned || g_eSubEncodingRule != eSubEncoding_Basic)
{
fSupported = FALSE;
}
}
else
if (g_eEncodingRule == eEncoding_Basic)
{
// if (Alignment != eAlignment_Aligned || g_eSubEncodingRule == eSubEncoding_Distinguished)
if (Alignment != eAlignment_Aligned)
{
fSupported = FALSE;
}
}
if (! fSupported)
{
fprintf(stderr, "Encoding not implemented (yet)\n");
MyExit(1);
}
/* initialize */
InitBuiltin();
/* scan file(s) */
#if defined(LLDEBUG) && LLDEBUG > 0
pass = 1;
fprintf(stderr, "Pass 1: Scanning input file\n");
#endif
readfiles(argv + optind);
llscanner(&tokens, &ntokens);
/* setup initial state */
in.Assignments = Builtin_Assignments;
in.AssignedObjIds = Builtin_ObjIds;
in.Undefined = NULL;
in.BadlyDefined = NULL;
in.Module = NULL;
in.MainModule = NULL;
in.Imported = NULL;
in.TagDefault = eTagType_Unknown;
in.ExtensionDefault = eExtensionType_None;
lastundef = NULL;
/* parse the modules */
do {
#if defined(LLDEBUG) && LLDEBUG > 0
fprintf(stderr, "Pass %d: Parsing \n", ++pass);
#endif
/* parse modules */
if (!llparser(tokens, ntokens, &in, &out)) {
llprinterror(stderr);
MyExit(1);
}
/* if undefined symbols remain the same as in previous pass */
/* than print these undefined symbols and MyExit */
if (!CmpUndefinedSymbolList(out.Assignments, out.Undefined, lastundef))
UndefinedError(out.Assignments, out.Undefined, out.BadlyDefined);
/* setup data for next pass */
in = out;
aa = &in.Assignments;
for (a = Builtin_Assignments; a; a = a->Next) {
*aa = DupAssignment(a);
aa = &(*aa)->Next;
}
*aa = NewAssignment(eAssignment_NextPass);
aa = &(*aa)->Next;
*aa = out.Assignments;
lastundef = out.Undefined;
in.Undefined = NULL;
in.BadlyDefined = NULL;
/* continue parsing until no undefined symbols left */
} while (lastundef);
/* build internal information */
#if defined(LLDEBUG) && LLDEBUG > 0
fprintf(stderr, "Pass %d: Building internal information \n", ++pass);
#endif
Examination(&out.Assignments, out.MainModule);
ExaminePER(out.Assignments);
ExamineBER(out.Assignments);
// remember who is the local duplicate of imported types
for (a = out.Assignments; a; a = a->Next)
{
a->fImportedLocalDuplicate = IsImportedLocalDuplicate(out.Assignments, out.MainModule, a) ? 1 : 0;
}
/* create file names and open files */
#if defined(LLDEBUG) && LLDEBUG > 0
fprintf(stderr, "Pass %d: Code generation \n", ++pass);
#endif
// create module name
StripModuleName(module, argv[argc - 1]);
// create inc file and out file names
strcpy(incfilename, module);
strcat(incfilename, ".h");
strcpy(outfilename, module);
strcat(outfilename, ".c");
for (p = module; *p; p++)
*p = (char)toupper(*p);
finc = fopen(incfilename, "w");
if (!finc) {
perror(incfilename);
MyExit(1);
}
fout = fopen(outfilename, "w");
if (!fout) {
perror(outfilename);
MyExit(1);
}
// lonchanc: change the full path name to file name only
{
char *psz = strrchr(module, '\\');
if (psz)
{
strcpy(module, psz+1);
}
}
// save the original module names
g_pszOrigModuleName = strdup(module);
g_pszOrigModuleNameLowerCase = strdup(module);
{
char *psz;
for (psz = g_pszOrigModuleNameLowerCase; *psz; psz++)
{
*psz = (char)tolower(*psz);
}
}
// lonchanc: append "_Module" to module name
strcat(module, "_Module");
/* code generation */
g_finc = finc;
g_fout = fout;
GenInc(out.Assignments, finc, module);
GenPrg(out.Assignments, fout, module, incfilename);
setoutfile(finc);
output("\n#ifdef __cplusplus\n");
outputni("} /* extern \"C\" */\n");
output("#endif\n\n");
output("#endif /* _%s_H_ */\n", module);
setoutfile(fout);
/* finitialize */
fclose(finc);
fclose(fout);
#if defined(LLDEBUG) && LLDEBUG > 0
fprintf(stderr, "Finished. \n");
#endif
return 0;
}
/* why is this function not in MS libc? */
#ifndef HAS_GETOPT
char *optarg;
int optind = 1;
static int optpos = 1;
/* get the next option from the command line arguments */
int getopt(int argc, char **argv, const char *options) {
char *p, *q;
optarg = NULL;
/* find start of next option */
do {
if (optind >= argc)
return EOF;
if (*argv[optind] != '-' && *argv[optind] != '/')
return EOF;
p = argv[optind] + optpos++;
if (!*p) {
optind++;
optpos = 1;
}
} while (!*p);
/* find option in option string */
q = strchr(options, *p);
if (!q)
return '?';
/* set optarg for parameterized option and adjust optind and optpos for next call */
if (q[1] == ':') {
if (p[1]) {
optarg = p + 1;
optind++;
optpos = 1;
} else if (++optind < argc) {
optarg = argv[optind];
optind++;
optpos = 1;
} else {
return '?';
}
}
/* return found option */
return *p;
}
#endif
void StripModuleName(char *pszDst, char *pszSrc)
{
strcpy(pszDst, pszSrc);
if (!strcmp(pszDst + strlen(pszDst) - 5, ".asn1"))
pszDst[strlen(pszDst) - 5] = 0;
else if (!strcmp(pszDst + strlen(pszDst) - 4, ".asn"))
pszDst[strlen(pszDst) - 4] = 0;
}