r8302: import mini HEIMDAL into the tree

(This used to be commit 118be28a7aef233799956615a99d1a2a74dac175)

1 files changed, 157 insertions, 0 deletions

diff --git a/source4/heimdal/lib/asn1/gen_copy.c b/source4/heimdal/lib/asn1/gen_copy.c
new file mode 100644
index 0000000000..a8421fea6a
--- /dev/null
+++ b/source4/heimdal/lib/asn1/gen_copy.c
@@ -0,0 +1,157 @@
+/*
+ * Copyright (c) 1997 - 2000 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("$Id: gen_copy.c,v 1.15 2005/06/16 20:03:38 lha Exp $");
+
+static void
+copy_primitive (const char *typename, const char *from, const char *to)
+{
+    fprintf (codefile, "if(copy_%s(%s, %s)) return ENOMEM;\n", 
+	     typename, from, to);
+}
+
+static void
+copy_type (const char *from, const char *to, const Type *t)
+{
+  switch (t->type) {
+  case TType:
+#if 0
+      copy_type (from, to, t->symbol->type);
+#endif
+      fprintf (codefile, "if(copy_%s(%s, %s)) return ENOMEM;\n", 
+	       t->symbol->gen_name, from, to);
+      break;
+  case TInteger:
+  case TUInteger:
+  case TBoolean:
+  case TEnumerated :
+      fprintf(codefile, "*(%s) = *(%s);\n", to, from);
+      break;
+  case TOctetString:
+      copy_primitive ("octet_string", from, to);
+      break;
+  case TOID:
+      copy_primitive ("oid", from, to);
+      break;
+  case TBitString: {
+      fprintf(codefile, "*(%s) = *(%s);\n", to, from);
+      break;
+  }
+  case TSequence: {
+      Member *m;
+      int tag = -1;
+
+      if (t->members == NULL)
+	  break;
+      
+      for (m = t->members; m && tag != m->val; m = m->next) {
+	  char *fn;
+	  char *tn;
+
+	  asprintf (&fn, "%s(%s)->%s",
+		    m->optional ? "" : "&", from, m->gen_name);
+	  asprintf (&tn, "%s(%s)->%s",
+		    m->optional ? "" : "&", to, m->gen_name);
+	  if(m->optional){
+	      fprintf(codefile, "if(%s) {\n", fn);
+	      fprintf(codefile, "%s = malloc(sizeof(*%s));\n", tn, tn);
+	      fprintf(codefile, "if(%s == NULL) return ENOMEM;\n", tn);
+	  }
+	  copy_type (fn, tn, m->type);
+	  if(m->optional){
+	      fprintf(codefile, "}else\n");
+	      fprintf(codefile, "%s = NULL;\n", tn);
+	  }
+	  if (tag == -1)
+	      tag = m->val;
+	  free (fn);
+	  free (tn);
+      }
+      break;
+  }
+  case TSequenceOf: {
+      char *f;
+      char *T;
+
+      fprintf (codefile, "if(((%s)->val = "
+	       "malloc((%s)->len * sizeof(*(%s)->val))) == NULL && (%s)->len != 0)\n", 
+	       to, from, to, from);
+      fprintf (codefile, "return ENOMEM;\n");
+      fprintf(codefile,
+	      "for((%s)->len = 0; (%s)->len < (%s)->len; (%s)->len++){\n",
+	      to, to, from, to);
+      asprintf(&f, "&(%s)->val[(%s)->len]", from, to);
+      asprintf(&T, "&(%s)->val[(%s)->len]", to, to);
+      copy_type(f, T, t->subtype);
+      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 TUTF8String:
+      copy_primitive ("utf8string", from, to);
+      break;
+  case TNull:
+      break;
+  case TApplication:
+      copy_type (from, to, t->subtype);
+      break;
+  default :
+      abort ();
+  }
+}
+
+void
+generate_type_copy (const Symbol *s)
+{
+  fprintf (headerfile,
+	   "int    copy_%s  (const %s *, %s *);\n",
+	   s->gen_name, s->gen_name, s->gen_name);
+
+  fprintf (codefile, "int\n"
+	   "copy_%s(const %s *from, %s *to)\n"
+	   "{\n",
+	   s->gen_name, s->gen_name, s->gen_name);
+
+  copy_type ("from", "to", s->type);
+  fprintf (codefile, "return 0;\n}\n\n");
+}
+