diff options
author | Andrew Bartlett <abartlet@samba.org> | 2005-08-09 03:04:47 +0000 |
---|---|---|
committer | Gerald (Jerry) Carter <jerry@samba.org> | 2007-10-10 13:31:33 -0500 |
commit | c0e8144c5d1e402b36ebe04b843eba62e7ab9958 (patch) | |
tree | 1b885ceee1a88e8cb2822051690b023c8f8acb78 /source4/heimdal/lib/asn1/gen_decode.c | |
parent | 4b93e377cd9809199487e20fa53d8a2c98ad32ea (diff) | |
download | samba-c0e8144c5d1e402b36ebe04b843eba62e7ab9958.tar.gz samba-c0e8144c5d1e402b36ebe04b843eba62e7ab9958.tar.bz2 samba-c0e8144c5d1e402b36ebe04b843eba62e7ab9958.zip |
r9221: Try to merge Heimdal across from lorikeet-heimdal to samba4.
This is my first attempt at this, so there may be a few rough edges.
Andrew Bartlett
(This used to be commit 9a1d2f2fec67930975da856a2d365345cec46216)
Diffstat (limited to 'source4/heimdal/lib/asn1/gen_decode.c')
-rw-r--r-- | source4/heimdal/lib/asn1/gen_decode.c | 730 |
1 files changed, 477 insertions, 253 deletions
diff --git a/source4/heimdal/lib/asn1/gen_decode.c b/source4/heimdal/lib/asn1/gen_decode.c index f49593dbcf..ff75113576 100644 --- a/source4/heimdal/lib/asn1/gen_decode.c +++ b/source4/heimdal/lib/asn1/gen_decode.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 1997 - 2001 Kungliga Tekniska Högskolan + * Copyright (c) 1997 - 2005 Kungliga Tekniska Högskolan * (Royal Institute of Technology, Stockholm, Sweden). * All rights reserved. * @@ -32,288 +32,554 @@ */ #include "gen_locl.h" +#include "lex.h" -RCSID("$Id: gen_decode.c,v 1.21 2005/05/29 14:23:01 lha Exp $"); +RCSID("$Id: gen_decode.c,v 1.27 2005/07/19 18:09:30 lha Exp $"); static void -decode_primitive (const char *typename, const char *name) +decode_primitive (const char *typename, const char *name, const char *forwstr) { +#if 0 fprintf (codefile, "e = decode_%s(p, len, %s, &l);\n" - "FORW;\n", + "%s;\n", + typename, + name, + forwstr); +#else + fprintf (codefile, + "e = der_get_%s(p, len, %s, &l);\n" + "if(e) %s;\np += l; len -= l; ret += l;\n", typename, - name); + name, + forwstr); +#endif +} + +static int +is_primitive_type(int type) +{ + switch(type) { + case TInteger: + case TBoolean: + case TOctetString: + case TBitString: + case TEnumerated: + case TGeneralizedTime: + case TGeneralString: + case TOID: + case TUTCTime: + case TUTF8String: + case TPrintableString: + case TIA5String: + case TBMPString: + case TUniversalString: + case TNull: + return 1; + default: + return 0; + } } static void -decode_type (const char *name, const Type *t) +find_tag (const Type *t, + Der_class *cl, Der_type *ty, unsigned *tag) { switch (t->type) { - case TType: -#if 0 - decode_type (name, t->symbol->type); -#endif + case TBitString: + *cl = ASN1_C_UNIV; + *ty = PRIM; + *tag = UT_BitString; + break; + case TBoolean: + *cl = ASN1_C_UNIV; + *ty = PRIM; + *tag = UT_Boolean; + break; + case TChoice: + errx(1, "Cannot have recursive CHOICE"); + case TEnumerated: + *cl = ASN1_C_UNIV; + *ty = PRIM; + *tag = UT_Enumerated; + break; + case TGeneralString: + *cl = ASN1_C_UNIV; + *ty = PRIM; + *tag = UT_GeneralString; + break; + case TGeneralizedTime: + *cl = ASN1_C_UNIV; + *ty = PRIM; + *tag = UT_GeneralizedTime; + break; + case TIA5String: + *cl = ASN1_C_UNIV; + *ty = PRIM; + *tag = UT_IA5String; + break; + case TInteger: + *cl = ASN1_C_UNIV; + *ty = PRIM; + *tag = UT_Integer; + break; + case TNull: + *cl = ASN1_C_UNIV; + *ty = PRIM; + *tag = UT_Null; + break; + case TOID: + *cl = ASN1_C_UNIV; + *ty = PRIM; + *tag = UT_OID; + break; + case TOctetString: + *cl = ASN1_C_UNIV; + *ty = PRIM; + *tag = UT_OctetString; + break; + case TPrintableString: + *cl = ASN1_C_UNIV; + *ty = PRIM; + *tag = UT_PrintableString; + break; + case TSequence: + case TSequenceOf: + *cl = ASN1_C_UNIV; + *ty = CONS; + *tag = UT_Sequence; + break; + case TSet: + case TSetOf: + *cl = ASN1_C_UNIV; + *ty = CONS; + *tag = UT_Set; + break; + case TTag: + *cl = t->tag.tagclass; + *ty = is_primitive_type(t->subtype->type) ? PRIM : CONS; + *tag = t->tag.tagvalue; + break; + case TType: + if ((t->symbol->stype == Stype && t->symbol->type == NULL) + || t->symbol->stype == SUndefined) { + error_message("%s is imported or still undefined, " + " can't generate tag checking data in CHOICE " + "without this information", + t->symbol->name); + exit(1); + } + find_tag(t->symbol->type, cl, ty, tag); + return; + case TUTCTime: + *cl = ASN1_C_UNIV; + *ty = PRIM; + *tag = UT_UTCTime; + break; + case TUTF8String: + *cl = ASN1_C_UNIV; + *ty = PRIM; + *tag = UT_UTF8String; + break; + case TBMPString: + *cl = ASN1_C_UNIV; + *ty = PRIM; + *tag = UT_BMPString; + break; + case TUniversalString: + *cl = ASN1_C_UNIV; + *ty = PRIM; + *tag = UT_UniversalString; + break; + default: + abort(); + } +} + +static int +decode_type (const char *name, const Type *t, int optional, + const char *forwstr) +{ + switch (t->type) { + case TType: { + if (optional) + fprintf(codefile, + "%s = calloc(1, sizeof(*%s));\n" + "if (%s == NULL) %s;\n", + name, name, name, forwstr); fprintf (codefile, - "e = decode_%s(p, len, %s, &l);\n" - "FORW;\n", + "e = decode_%s(p, len, %s, &l);\n", t->symbol->gen_name, name); + if (optional) { + fprintf (codefile, + "if(e) {\n" + "free(%s);\n" + "%s = NULL;\n" + "} else {\n" + "p += l; len -= l; ret += l;\n" + "}\n", + name, name); + } else { + fprintf (codefile, + "if(e) %s;\n", + forwstr); + fprintf (codefile, + "p += l; len -= l; ret += l;\n"); + } break; + } case TInteger: - if(t->members == NULL) - decode_primitive ("integer", name); - else { + if(t->members) { char *s; asprintf(&s, "(int*)%s", name); - if(s == NULL) + if (s == NULL) errx (1, "out of memory"); - decode_primitive ("integer", s); + decode_primitive ("integer", s, forwstr); free(s); - } - break; - case TUInteger: - decode_primitive ("unsigned", name); + } else if (t->range == NULL) { + decode_primitive ("heim_integer", name, forwstr); + } else if (t->range->min == INT_MIN && t->range->max == INT_MAX) { + decode_primitive ("integer", name, forwstr); + } else if (t->range->min == 0 && t->range->max == UINT_MAX) { + decode_primitive ("unsigned", name, forwstr); + } else if (t->range->min == 0 && t->range->max == INT_MAX) { + decode_primitive ("unsigned", name, forwstr); + } else + errx(1, "%s: unsupported range %d -> %d", + name, t->range->min, t->range->max); break; + case TBoolean: + decode_primitive ("boolean", name, forwstr); + break; case TEnumerated: - decode_primitive ("enumerated", name); + decode_primitive ("enumerated", name, forwstr); break; case TOctetString: - decode_primitive ("octet_string", name); - break; - case TOID : - decode_primitive ("oid", name); + decode_primitive ("octet_string", name, forwstr); break; case TBitString: { Member *m; - int tag = -1; - int pos; + int pos = 0; - fprintf (codefile, - "e = der_match_tag_and_length (p, len, ASN1_C_UNIV, PRIM, UT_BitString," - "&reallen, &l);\n" - "FORW;\n" - "if(len < reallen)\n" - "return ASN1_OVERRUN;\n" - "p++;\n" - "len--;\n" - "reallen--;\n" - "ret++;\n"); - pos = 0; - for (m = t->members; m && tag != m->val; m = m->next) { + if (ASN1_TAILQ_EMPTY(t->members)) { + decode_primitive ("bit_string", name, forwstr); + break; + } + fprintf(codefile, + "if (len < 1) return ASN1_OVERRUN;\n" + "p++; len--; ret++;\n"); + fprintf(codefile, + "do {\n" + "if (len < 1) break;\n"); + ASN1_TAILQ_FOREACH(m, t->members, members) { while (m->val / 8 > pos / 8) { fprintf (codefile, - "p++; len--; reallen--; ret++;\n"); + "p++; len--; ret++;\n" + "if (len < 1) break;\n"); pos += 8; } fprintf (codefile, - "%s->%s = (*p >> %d) & 1;\n", + "(%s)->%s = (*p >> %d) & 1;\n", name, m->gen_name, 7 - m->val % 8); - if (tag == -1) - tag = m->val; } + fprintf(codefile, + "} while(0);\n"); fprintf (codefile, - "p += reallen; len -= reallen; ret += reallen;\n"); + "p += len; ret += len;\n"); break; } case TSequence: { Member *m; - int tag = -1; - int fd_counter = unique_get_next(); - int fd_counter_inner = unique_get_next(); if (t->members == NULL) break; - fprintf (codefile, - "e = der_match_tag_and_length (p, len, ASN1_C_UNIV, CONS, UT_Sequence," - "&reallen, &l);\n" - "FORW;\n" - "{\n" - "int dce_fix%d;\n" - "if((dce_fix%d = fix_dce(reallen, &len)) < 0)\n" - "return ASN1_BAD_FORMAT;\n", - fd_counter, fd_counter); + ASN1_TAILQ_FOREACH(m, t->members, members) { + char *s; + + if (m->ellipsis) + continue; + + asprintf (&s, "%s(%s)->%s", m->optional ? "" : "&", + name, m->gen_name); + if (s == NULL) + errx(1, "malloc"); + decode_type (s, m->type, m->optional, forwstr); + free (s); + } + + break; + } + case TSet: { + Member *m; + unsigned int memno; + + if(t->members == NULL) + break; - for (m = t->members; m && tag != m->val; m = m->next) { + fprintf(codefile, "{\n"); + fprintf(codefile, "unsigned int members = 0;\n"); + fprintf(codefile, "while(len > 0) {\n"); + fprintf(codefile, + "Der_class class;\n" + "Der_type type;\n" + "int tag;\n" + "e = der_get_tag (p, len, &class, &type, &tag, NULL);\n" + "if(e) %s;\n", forwstr); + fprintf(codefile, "switch (MAKE_TAG(class, type, tag)) {\n"); + memno = 0; + ASN1_TAILQ_FOREACH(m, t->members, members) { char *s; + assert(m->type->type == TTag); + + fprintf(codefile, "case MAKE_TAG(%s, %s, %s):\n", + classname(m->type->tag.tagclass), + is_primitive_type(m->type->subtype->type) ? "PRIM" : "CONS", + valuename(m->type->tag.tagclass, m->type->tag.tagvalue)); + asprintf (&s, "%s(%s)->%s", m->optional ? "" : "&", name, m->gen_name); - if (0 && m->type->type == TType){ - if(m->optional) - fprintf (codefile, - "%s = malloc(sizeof(*%s));\n" - "if(%s == NULL) return ENOMEM;\n", s, s, s); - fprintf (codefile, - "e = decode_seq_%s(p, len, %d, %d, %s, &l);\n", - m->type->symbol->gen_name, - m->val, - m->optional, - s); - if(m->optional) - fprintf (codefile, - "if (e == ASN1_MISSING_FIELD) {\n" - "free(%s);\n" - "%s = NULL;\n" - "e = l = 0;\n" - "}\n", - s, s); - - fprintf (codefile, "FORW;\n"); - - }else{ - fprintf (codefile, "{\n" - "size_t newlen, oldlen;\n\n" - "e = der_match_tag (p, len, ASN1_C_CONTEXT, CONS, %d, &l);\n", - m->val); - fprintf (codefile, - "if (e)\n"); - if(m->optional) - /* XXX should look at e */ - fprintf (codefile, - "%s = NULL;\n", s); - else - fprintf (codefile, - "return e;\n"); - fprintf (codefile, - "else {\n"); - fprintf (codefile, - "p += l;\n" - "len -= l;\n" - "ret += l;\n" - "e = der_get_length (p, len, &newlen, &l);\n" - "FORW;\n" - "{\n" - - "int dce_fix%d;\n" - "oldlen = len;\n" - "if((dce_fix%d = fix_dce(newlen, &len)) < 0)" - "return ASN1_BAD_FORMAT;\n", - fd_counter_inner, - fd_counter_inner); - if (m->optional) - fprintf (codefile, - "%s = malloc(sizeof(*%s));\n" - "if(%s == NULL) return ENOMEM;\n", s, s, s); - decode_type (s, m->type); - fprintf (codefile, - "if(dce_fix%d){\n" - "e = der_match_tag_and_length (p, len, " - "(Der_class)0, (Der_type)0, 0, &reallen, &l);\n" - "FORW;\n" - "}else \n" - "len = oldlen - newlen;\n" - "}\n" - "}\n", - fd_counter_inner); - fprintf (codefile, - "}\n"); - } - if (tag == -1) - tag = m->val; + if (s == NULL) + errx(1, "malloc"); + if(m->optional) + fprintf(codefile, + "%s = calloc(1, sizeof(*%s));\n" + "if (%s == NULL) { e = ENOMEM; %s; }\n", + s, s, s, forwstr); + decode_type (s, m->type, 0, forwstr); free (s); + + fprintf(codefile, "members |= (1 << %d);\n", memno); + memno++; + fprintf(codefile, "break;\n"); } - fprintf(codefile, - "if(dce_fix%d){\n" - "e = der_match_tag_and_length (p, len, " - "(Der_class)0, (Der_type)0, 0, &reallen, &l);\n" - "FORW;\n" - "}\n" - "}\n", - fd_counter); + fprintf(codefile, + "default:\n" + "return ASN1_MISPLACED_FIELD;\n" + "break;\n"); + fprintf(codefile, "}\n"); + fprintf(codefile, "}\n"); + memno = 0; + ASN1_TAILQ_FOREACH(m, t->members, members) { + char *s; + asprintf (&s, "%s->%s", name, m->gen_name); + if (s == NULL) + errx(1, "malloc"); + fprintf(codefile, "if((members & (1 << %d)) == 0)\n", memno); + if(m->optional) + fprintf(codefile, "%s = NULL;\n", s); + else if(m->defval) + gen_assign_defval(s, m->defval); + else + fprintf(codefile, "return ASN1_MISSING_FIELD;\n"); + free(s); + memno++; + } + fprintf(codefile, "}\n"); break; } + case TSetOf: case TSequenceOf: { char *n; - int oldret_counter = unique_get_next(); - - fprintf (codefile, - "e = der_match_tag_and_length (p, len, ASN1_C_UNIV, CONS, UT_Sequence," - "&reallen, &l);\n" - "FORW;\n" - "if(len < reallen)\n" - "return ASN1_OVERRUN;\n" - "len = reallen;\n"); fprintf (codefile, "{\n" "size_t origlen = len;\n" - "int oldret%d = ret;\n" + "size_t oldret = ret;\n" + "void *tmp;\n" "ret = 0;\n" "(%s)->len = 0;\n" "(%s)->val = NULL;\n" "while(ret < origlen) {\n" + "tmp = realloc((%s)->val, " + " sizeof(*((%s)->val)) * ((%s)->len + 1));\n" + "if (tmp == NULL) { %s; }\n" "(%s)->len++;\n" - "(%s)->val = realloc((%s)->val, sizeof(*((%s)->val)) * (%s)->len);\n", - oldret_counter, name, name, name, name, name, name, name); + "(%s)->val = tmp;\n", + name, name, name, name, name, forwstr, name, name); + asprintf (&n, "&(%s)->val[(%s)->len-1]", name, name); - decode_type (n, t->subtype); + if (n == NULL) + errx(1, "malloc"); + decode_type (n, t->subtype, 0, forwstr); fprintf (codefile, "len = origlen - ret;\n" "}\n" - "ret += oldret%d;\n" - "}\n", - oldret_counter); + "ret += oldret;\n" + "}\n"); free (n); break; } case TGeneralizedTime: - decode_primitive ("generalized_time", name); + decode_primitive ("generalized_time", name, forwstr); break; case TGeneralString: - decode_primitive ("general_string", name); + decode_primitive ("general_string", name, forwstr); break; - case TUTF8String: - decode_primitive ("utf8string", name); - break; - case TNull: - fprintf (codefile, - "e = decode_nulltype(p, len, &l);\n" - "FORW;\n"); - break; - case TApplication: + case TTag:{ + fprintf(codefile, + "{\n" + "size_t tagdatalen, oldlen;\n"); + if(dce_fix) + fprintf(codefile, + "int dce_fix;\n"); + fprintf(codefile, "e = der_match_tag_and_length(p, len, %s, %s, %s, " + "&tagdatalen, &l);\n", + classname(t->tag.tagclass), + is_primitive_type(t->subtype->type) ? "PRIM" : "CONS", + valuename(t->tag.tagclass, t->tag.tagvalue)); + if(optional) { + fprintf(codefile, + "if(e) {\n" + "%s = NULL;\n" + "} else {\n" + "%s = calloc(1, sizeof(*%s));\n" + "if (%s == NULL) { e = ENOMEM; %s; }\n", + name, name, name, name, forwstr); + } else { + fprintf(codefile, "if(e) %s;\n", forwstr); + } fprintf (codefile, - "e = der_match_tag_and_length (p, len, ASN1_C_APPL, CONS, %d, " - "&reallen, &l);\n" - "FORW;\n" - "{\n" - "int dce_fix;\n" - "if((dce_fix = fix_dce(reallen, &len)) < 0)\n" - "return ASN1_BAD_FORMAT;\n", - t->application); - decode_type (name, t->subtype); - fprintf(codefile, - "if(dce_fix){\n" - "e = der_match_tag_and_length (p, len, " - "(Der_class)0, (Der_type)0, 0, &reallen, &l);\n" - "FORW;\n" - "}\n" + "p += l; len -= l; ret += l;\n" + "oldlen = len;\n"); + if(dce_fix) + fprintf (codefile, + "if((dce_fix = _heim_fix_dce(tagdatalen, &len)) < 0)\n" + "{ e = ASN1_BAD_FORMAT; %s; }\n", + forwstr); + else + fprintf(codefile, + "if (tagdatalen > len) { e = ASN1_OVERRUN; %s; }\n" + "len = tagdatalen;\n", forwstr); + decode_type (name, t->subtype, 0, forwstr); + if(dce_fix) + fprintf(codefile, + "if(dce_fix){\n" + "e = der_match_tag_and_length (p, len, " + "(Der_class)0,(Der_type)0, UT_EndOfContent, " + "&tagdatalen, &l);\n" + "if(e) %s;\np += l; len -= l; ret += l;\n" + "} else \n", forwstr); + fprintf(codefile, + "len = oldlen - tagdatalen;\n"); + if(optional) + fprintf(codefile, + "}\n"); + fprintf(codefile, "}\n"); + break; + } + case TChoice: { + Member *m, *have_ellipsis = NULL; + const char *els = ""; + if (t->members == NULL) + break; + + ASN1_TAILQ_FOREACH(m, t->members, members) { + const Type *tt = m->type; + char *s; + Der_class cl; + Der_type ty; + unsigned tag; + + if (m->ellipsis) { + have_ellipsis = m; + continue; + } + + find_tag(tt, &cl, &ty, &tag); + + fprintf(codefile, + "%sif (der_match_tag(p, len, %s, %s, %s, NULL) == 0) {\n", + els, + classname(cl), + ty ? "CONS" : "PRIM", + valuename(cl, tag)); + asprintf (&s, "%s(%s)->u.%s", m->optional ? "" : "&", + name, m->gen_name); + if (s == NULL) + errx(1, "malloc"); + decode_type (s, m->type, m->optional, forwstr); + fprintf(codefile, + "(%s)->element = %s;\n", + name, m->label); + free(s); + fprintf(codefile, + "}\n"); + els = "else "; + } + if (have_ellipsis) { + fprintf(codefile, + "else {\n" + "(%s)->u.%s.data = calloc(1, len);\n" + "if ((%s)->u.%s.data == NULL) {\n" + "e = ENOMEM; %s;\n" + "}\n" + "(%s)->u.%s.length = len;\n" + "memcpy((%s)->u.%s.data, p, len);\n" + "(%s)->element = %s;\n" + "p += len;\n" + "ret += len;\n" + "len -= len;\n" + "}\n", + name, have_ellipsis->gen_name, + name, have_ellipsis->gen_name, + forwstr, + name, have_ellipsis->gen_name, + name, have_ellipsis->gen_name, + name, have_ellipsis->label); + } else { + fprintf(codefile, + "else {\n" + "e = ASN1_PARSE_ERROR;\n" + "%s;\n" + "}\n", + forwstr); + } break; - case TBoolean: - decode_primitive ("boolean", name); + } + case TUTCTime: + decode_primitive ("utctime", name, forwstr); + break; + case TUTF8String: + decode_primitive ("utf8string", name, forwstr); + break; + case TPrintableString: + decode_primitive ("printable_string", name, forwstr); + break; + case TIA5String: + decode_primitive ("ia5_string", name, forwstr); + break; + case TBMPString: + decode_primitive ("bmp_string", name, forwstr); + break; + case TUniversalString: + decode_primitive ("universal_string", name, forwstr); + break; + case TNull: + fprintf (codefile, "/* NULL */\n"); + break; + case TOID: + decode_primitive ("oid", name, forwstr); break; default : abort (); } + return 0; } void generate_type_decode (const Symbol *s) { - unique_reset(); + int preserve = preserve_type(s->name) ? TRUE : FALSE; + fprintf (headerfile, "int " "decode_%s(const unsigned char *, size_t, %s *, size_t *);\n", s->gen_name, s->gen_name); - fprintf (codefile, "#define FORW " - "if(e) goto fail; " - "p += l; " - "len -= l; " - "ret += l\n\n"); - - fprintf (codefile, "int\n" "decode_%s(const unsigned char *p," " size_t len, %s *data, size_t *size)\n" @@ -322,28 +588,45 @@ generate_type_decode (const Symbol *s) switch (s->type->type) { case TInteger: - case TUInteger: case TBoolean: case TOctetString: case TOID: case TGeneralizedTime: case TGeneralString: case TUTF8String: + case TPrintableString: + case TIA5String: + case TBMPString: + case TUniversalString: + case TUTCTime: case TNull: case TEnumerated: case TBitString: case TSequence: case TSequenceOf: - case TApplication: + case TSet: + case TSetOf: + case TTag: case TType: + case TChoice: fprintf (codefile, "size_t ret = 0, reallen;\n" "size_t l;\n" - "int e;\n\n"); + "int e;\n"); + if (preserve) + fprintf (codefile, "const unsigned char *begin = p;\n"); + + fprintf (codefile, "\n"); fprintf (codefile, "memset(data, 0, sizeof(*data));\n"); fprintf (codefile, "reallen = 0;\n"); /* hack to avoid `unused variable' */ - decode_type ("data", s->type); + decode_type ("data", s->type, 0, "goto fail"); + if (preserve) + fprintf (codefile, + "data->_save.data = calloc(1, ret);\n" + "if (data->_save.data == NULL) { e = ENOMEM; goto fail; }\n" + "data->_save.length = ret;\n" + "memcpy(data->_save.data, begin, ret);\n"); fprintf (codefile, "if(size) *size = ret;\n" "return 0;\n"); @@ -358,62 +641,3 @@ generate_type_decode (const Symbol *s) } fprintf (codefile, "}\n\n"); } - -void -generate_seq_type_decode (const Symbol *s) -{ - fprintf (headerfile, - "int decode_seq_%s(const unsigned char *, size_t, int, int, " - "%s *, size_t *);\n", - s->gen_name, s->gen_name); - - fprintf (codefile, "int\n" - "decode_seq_%s(const unsigned char *p, size_t len, int tag, " - "int optional, %s *data, size_t *size)\n" - "{\n", - s->gen_name, s->gen_name); - - fprintf (codefile, - "size_t newlen, oldlen;\n" - "size_t l, ret = 0;\n" - "int e;\n" - "int dce_fix;\n"); - - fprintf (codefile, - "e = der_match_tag(p, len, ASN1_C_CONTEXT, CONS, tag, &l);\n" - "if (e)\n" - "return e;\n"); - fprintf (codefile, - "p += l;\n" - "len -= l;\n" - "ret += l;\n" - "e = der_get_length(p, len, &newlen, &l);\n" - "if (e)\n" - "return e;\n" - "p += l;\n" - "len -= l;\n" - "ret += l;\n" - "oldlen = len;\n" - "if ((dce_fix = fix_dce(newlen, &len)) < 0)\n" - "return ASN1_BAD_FORMAT;\n" - "e = decode_%s(p, len, data, &l);\n" - "if (e)\n" - "return e;\n" - "p += l;\n" - "len -= l;\n" - "ret += l;\n" - "if (dce_fix) {\n" - "size_t reallen;\n\n" - "e = der_match_tag_and_length(p, len, " - "(Der_class)0, (Der_type)0, 0, &reallen, &l);\n" - "if (e)\n" - "return e;\n" - "ret += l;\n" - "}\n", - s->gen_name); - fprintf (codefile, - "if(size) *size = ret;\n" - "return 0;\n"); - - fprintf (codefile, "}\n\n"); -} |