/* $NetBSD: gen_copy.c,v 1.2.22.1 2023/08/11 13:39:56 martin Exp $ */ /* * Copyright (c) 1997 - 2005 Kungliga Tekniska Högskolan * (Royal Institute of Technology, Stockholm, Sweden). * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * 3. Neither the name of the Institute nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include "gen_locl.h" __RCSID("$NetBSD: gen_copy.c,v 1.2.22.1 2023/08/11 13:39:56 martin Exp $"); static int used_fail; static void copy_primitive (const char *typename, const char *from, const char *to) { fprintf (codefile, "if(der_copy_%s(%s, %s)) goto fail;\n", typename, from, to); used_fail++; } static void copy_type (const char *from, const char *to, const Type *t, int preserve) { switch (t->type) { case TType: #if 0 copy_type (from, to, t->symbol->type, preserve); #endif fprintf (codefile, "if(copy_%s(%s, %s)) goto fail;\n", t->symbol->gen_name, from, to); used_fail++; break; case TInteger: if (t->range == NULL && t->members == NULL) { copy_primitive ("heim_integer", from, to); break; } /* fallthrough */ case TBoolean: case TEnumerated : fprintf(codefile, "*(%s) = *(%s);\n", to, from); break; case TOctetString: copy_primitive ("octet_string", from, to); break; case TBitString: if (ASN1_TAILQ_EMPTY(t->members)) copy_primitive ("bit_string", from, to); else fprintf(codefile, "*(%s) = *(%s);\n", to, from); break; case TSet: case TSequence: case TChoice: { Member *m, *have_ellipsis = NULL; if(t->members == NULL) break; if ((t->type == TSequence || t->type == TChoice) && preserve) { fprintf(codefile, "{ int ret;\n" "ret = der_copy_octet_string(&(%s)->_save, &(%s)->_save);\n" "if (ret) goto fail;\n" "}\n", from, to); used_fail++; } if(t->type == TChoice) { fprintf(codefile, "(%s)->element = (%s)->element;\n", to, from); fprintf(codefile, "switch((%s)->element) {\n", from); } ASN1_TAILQ_FOREACH(m, t->members, members) { char *fs; char *ts; if (m->ellipsis) { have_ellipsis = m; continue; } if(t->type == TChoice) fprintf(codefile, "case %s:\n", m->label); if (asprintf (&fs, "%s(%s)->%s%s", m->optional ? "" : "&", from, t->type == TChoice ? "u." : "", m->gen_name) < 0) errx(1, "malloc"); if (fs == NULL) errx(1, "malloc"); if (asprintf (&ts, "%s(%s)->%s%s", m->optional ? "" : "&", to, t->type == TChoice ? "u." : "", m->gen_name) < 0) errx(1, "malloc"); if (ts == NULL) errx(1, "malloc"); if(m->optional){ fprintf(codefile, "if(%s) {\n", fs); fprintf(codefile, "%s = malloc(sizeof(*%s));\n", ts, ts); fprintf(codefile, "if(%s == NULL) goto fail;\n", ts); used_fail++; } copy_type (fs, ts, m->type, FALSE); if(m->optional){ fprintf(codefile, "}else\n"); fprintf(codefile, "%s = NULL;\n", ts); } free (fs); free (ts); if(t->type == TChoice) fprintf(codefile, "break;\n"); } if(t->type == TChoice) { if (have_ellipsis) { fprintf(codefile, "case %s: {\n" "int ret;\n" "ret=der_copy_octet_string(&(%s)->u.%s, &(%s)->u.%s);\n" "if (ret) goto fail;\n" "break;\n" "}\n", have_ellipsis->label, from, have_ellipsis->gen_name, to, have_ellipsis->gen_name); used_fail++; } fprintf(codefile, "}\n"); } break; } case TSetOf: case TSequenceOf: { char *f = NULL, *T = NULL; fprintf (codefile, "if(((%s)->val = " "malloc((%s)->len * sizeof(*(%s)->val))) == NULL && (%s)->len != 0)\n", to, from, to, from); fprintf (codefile, "goto fail;\n"); used_fail++; fprintf(codefile, "for((%s)->len = 0; (%s)->len < (%s)->len; (%s)->len++){\n", to, to, from, to); if (asprintf(&f, "&(%s)->val[(%s)->len]", from, to) < 0) errx(1, "malloc"); if (f == NULL) errx(1, "malloc"); if (asprintf(&T, "&(%s)->val[(%s)->len]", to, to) < 0) errx(1, "malloc"); if (T == NULL) errx(1, "malloc"); copy_type(f, T, t->subtype, FALSE); fprintf(codefile, "}\n"); free(f); free(T); break; } case TGeneralizedTime: fprintf(codefile, "*(%s) = *(%s);\n", to, from); break; case TGeneralString: copy_primitive ("general_string", from, to); break; case TTeletexString: copy_primitive ("general_string", from, to); break; case TUTCTime: fprintf(codefile, "*(%s) = *(%s);\n", to, from); break; case TUTF8String: copy_primitive ("utf8string", from, to); break; case TPrintableString: copy_primitive ("printable_string", from, to); break; case TIA5String: copy_primitive ("ia5_string", from, to); break; case TBMPString: copy_primitive ("bmp_string", from, to); break; case TUniversalString: copy_primitive ("universal_string", from, to); break; case TVisibleString: copy_primitive ("visible_string", from, to); break; case TTag: copy_type (from, to, t->subtype, preserve); break; case TOID: copy_primitive ("oid", from, to); break; case TNull: break; default : abort (); } } void generate_type_copy (const Symbol *s) { int preserve = preserve_type(s->name) ? TRUE : FALSE; used_fail = 0; fprintf (codefile, "int ASN1CALL\n" "copy_%s(const %s *from, %s *to)\n" "{\n" "memset(to, 0, sizeof(*to));\n", s->gen_name, s->gen_name, s->gen_name); copy_type ("from", "to", s->type, preserve); fprintf (codefile, "return 0;\n"); if (used_fail) fprintf (codefile, "fail:\n" "free_%s(to);\n" "return ENOMEM;\n", s->gen_name); fprintf(codefile, "}\n\n"); }