Add generated add_ and remove_ for "SEQUENCE OF TType". I'm tried of

writing realloc(foo->data, sizeof(foo->data[0]) + (foo->len + 1)); Only generated for those type that is enabled by the command flag --sequence. git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@18005 ec53bebd-3082-4978-b11e-865c3cabbd6b
2006-09-05 12:23:54 +00:00
parent 6c09bab1d6
commit 413862a22b
1 changed files with 119 additions and 0 deletions
--- a/lib/asn1/gen_seq.c
+++ b/lib/asn1/gen_seq.c
@@ -0,0 +1,119 @@
+/*
+ * Copyright (c) 1997 - 2006 Kungliga Tekniska H<>gskolan
+ * (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("$Id$");
+
+void
+generate_type_seq (const Symbol *s)
+{
+    char *subname;
+    Type *type;
+
+    if (!seq_type(s->name))
+	return;
+    type = s->type;
+    while(type->type == TTag)
+	type = type->subtype;
+
+    if (type->type != TSequenceOf) {
+	printf("%s not seq of %d\n", s->name, (int)type->type);
+	return;
+    }
+
+    /*
+     * Require the subtype to be a type so we can name it and use
+     * copy_/free_
+     */
+    
+    if (type->subtype->type != TType) {
+	fprintf(stderr, "%s subtype is not a type, can't generate "
+	       "sequence code for this case: %d\n",
+		s->name, (int)type->subtype->type);
+	exit(1);
+    }
+
+    subname = type->subtype->symbol->gen_name;
+
+    fprintf (headerfile,
+	     "int   add_%s  (%s *, const %s *);\n"
+	     "int   remove_%s  (%s *, unsigned int);\n",
+	     s->gen_name, s->gen_name, subname,
+	     s->gen_name, s->gen_name);
+
+    fprintf (codefile, "int\n"
+	     "add_%s(%s *data, const %s *element)\n"
+	     "{\n",
+	     s->gen_name, s->gen_name, subname);
+
+    fprintf (codefile, 
+	     "int ret;\n"
+	     "void *ptr;\n"
+	     "\n"
+	     "ptr = realloc(data->val, \n"
+	     "\t(data->len + 1) * sizeof(data->val[0]))\n"
+	     "if (ptr == NULL) return ENOMEM;\n"
+	     "data->val = ptr;\n\n"
+	     "ret = copy_%s(element, &data->val[data->len]);\n"
+	     "if (ret) return ret;\n"
+	     "data->len++;\n"
+	     "return 0;\n",
+	     subname);
+
+    fprintf (codefile, "}\n\n");
+    
+    fprintf (codefile, "int\n"
+	     "remove_%s(%s *data, unsigned int element)\n"
+	     "{\n",
+	     s->gen_name, s->gen_name);
+
+    fprintf (codefile, 
+	     "%s *old;\n"
+	     "void *ptr;\n"
+	     "\n"
+	     "if (data->len == 0) return ASN1_UNDERRUN;\n"
+	     "if (num >= data->len) return ASN1_OVERRUN;\n"
+	     "free_%s(data->val[element])\n"
+	     "data->len--;\n"
+	     "memmove(&data->val[element], &data->val[element + 1], \n"
+	     "\tsizeof(data->val[0]) * data->len);\n"
+	     /* resize but don't care about failures since it doesn't matter */
+	     "ptr = realloc(data->val, data->len * sizeof(data->val[0]));\n"
+	     "if (ptr) data->val = ptr;\n"
+	     "return 0;\n",
+	     subname, subname);
+
+    fprintf (codefile, "}\n\n");
+}
+