Commit much improved ASN.1 compiler from joda-choice-branch.

Highlighs for the compiler is support for CHOICE and in general better
support for tags. This compiler support most of what is needed for
PK-INIT, LDAP, X.509, PKCS-12 and many other protocols.


git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@15617 ec53bebd-3082-4978-b11e-865c3cabbd6b

lib/asn1/asn1_gen.c

@@ -0,0 +1,187 @@
+/*
+ * Copyright (c) 2005 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 "der_locl.h"
+#include <com_err.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <ctype.h>
+#include <getarg.h>
+#include <hex.h>
+#include <err.h>
+
+RCSID("$Id$");
+
+static int
+doit(const char *fn)
+{
+    char buf[2048];
+    char *fnout;
+    const char *bname;
+    unsigned long line = 0;
+    FILE *f, *fout;
+    size_t offset = 0;
+
+    f = fopen(fn, "r");
+    if (f == NULL)
+	err(1, "fopen");
+
+    bname = strrchr(fn, '/');
+    if (bname)
+	bname++;
+    else
+	bname = fn;
+
+    asprintf(&fnout, "%s.out", bname);
+    if (fnout == NULL)
+	errx(1, "malloc");
+
+    fout = fopen(fnout, "w");
+    if (fout == NULL)
+	err(1, "fopen: output file");
+
+    while (fgets(buf, sizeof(buf), f) != NULL) {
+	char *ptr, *class, *type, *tag, *length, *data, *foo;
+	int ret, l, c, ty, ta;
+	unsigned char p[6], *pdata;
+	size_t sz;
+
+	line++;
+
+	buf[strcspn(buf, "\r\n")] = '\0';
+	if (buf[0] == '#' || buf[0] == '\0')
+	    continue;
+
+	ptr = buf;
+	while (isspace((unsigned char)*ptr))
+	       ptr++;
+
+	class = strtok_r(ptr, " \t\n", &foo);
+	if (class == NULL) errx(1, "class missing one line %lu", line);
+	type = strtok_r(NULL, " \t\n", &foo);
+	if (type == NULL) errx(1, "type missing one line %lu", line);
+	tag = strtok_r(NULL, " \t\n", &foo);
+	if (tag == NULL) errx(1, "tag missing one line %lu", line);
+	length = strtok_r(NULL, " \t\n", &foo);
+	if (length == NULL) errx(1, "length missing one line %lu", line);
+	data = strtok_r(NULL, " \t\n", &foo);
+
+	c = der_get_class_num(class);
+	if (c == -1) errx(1, "no valid class on line %lu", line);
+	ty = der_get_type_num(type);
+	if (ty == -1) errx(1, "no valid type on line %lu", line);
+	ta = der_get_tag_num(tag);
+	if (ta == -1)
+	    ta = atoi(tag);
+
+	l = atoi(length);
+
+	printf("line: %3lu offset: %3lu class: %d type: %d "
+	       "tag: %3d length: %3d %s\n", 
+	       line, (unsigned long)offset, c, ty, ta, l, 
+	       data ? "<have data>" : "<no data>");
+
+	ret = der_put_length_and_tag(p + sizeof(p) - 1, sizeof(p),
+				     l,
+				     c,
+				     ty,
+				     ta,
+				     &sz);
+	if (ret)
+	    errx(1, "der_put_length_and_tag: %d", ret);
+	
+	if (fwrite(p + sizeof(p) - sz , sz, 1, fout) != 1)
+	    err(1, "fwrite length/tag failed");
+	offset += sz;
+	
+	if (data) {
+	    size_t datalen;
+	    
+	    datalen = strlen(data) / 2;
+	    pdata = emalloc(sz);
+	    
+	    if (hex_decode(data, pdata, datalen) != datalen)
+		errx(1, "failed to decode data");
+	    
+	    if (fwrite(pdata, datalen, 1, fout) != 1)
+		err(1, "fwrite data failed");
+	    offset += datalen;
+	    
+	    free(pdata);
+	}
+    }
+    printf("line: eof offset: %lu\n", (unsigned long)offset);
+    
+    fclose(fout);
+    fclose(f);
+    return 0;
+}
+
+
+static int version_flag;
+static int help_flag;
+struct getargs args[] = {
+    { "version", 0, arg_flag, &version_flag },
+    { "help", 0, arg_flag, &help_flag }
+};
+int num_args = sizeof(args) / sizeof(args[0]);
+
+static void
+usage(int code)
+{
+    arg_printusage(args, num_args, NULL, "parse-file");
+    exit(code);
+}
+
+int
+main(int argc, char **argv)
+{
+    int optind = 0;
+
+    setprogname (argv[0]);
+
+    if(getarg(args, num_args, argc, argv, &optind))
+	usage(1);
+    if(help_flag)
+	usage(0);
+    if(version_flag) {
+	print_version(NULL);
+	exit(0);
+    }
+    argv += optind;
+    argc -= optind;
+    if (argc != 1)
+	usage (1);
+
+    return doit (argv[0]);
+}