Smallish.

[yaz-moved-to-github.git] / odr / odr.c

diff --git a/odr/odr.c b/odr/odr.c
index bea667c..af2665d 100644 (file)
--- a/odr/odr.c
+++ b/odr/odr.c
@@ -1,10 +1,53 @@
 /*
- * Copyright (C) 1994, Index Data I/S 
- * All rights reserved.
+ * Copyright (c) 1995, Index Data
+ * See the file LICENSE for details.
  * Sebastian Hammer, Adam Dickmeiss
  *
  * $Log: odr.c,v $
- * Revision 1.6  1995-03-08 12:12:15  quinn
+ * Revision 1.20  1995-11-08 17:41:32  quinn
+ * Smallish.
+ *
+ * Revision 1.19  1995/11/01  13:54:41  quinn
+ * Minor adjustments
+ *
+ * Revision 1.18  1995/09/29  17:12:22  quinn
+ * Smallish
+ *
+ * Revision 1.17  1995/09/29  17:01:50  quinn
+ * More Windows work
+ *
+ * Revision 1.16  1995/09/27  15:02:57  quinn
+ * Modified function heads & prototypes.
+ *
+ * Revision 1.15  1995/08/15  12:00:22  quinn
+ * Updated External
+ *
+ * Revision 1.14  1995/06/19  12:38:46  quinn
+ * Added BER dumper.
+ *
+ * Revision 1.13  1995/05/22  11:32:02  quinn
+ * Fixing Interface to odr_null.
+ *
+ * Revision 1.12  1995/05/16  08:50:49  quinn
+ * License, documentation, and memory fixes
+ *
+ * Revision 1.11  1995/05/15  11:56:08  quinn
+ * More work on memory management.
+ *
+ * Revision 1.10  1995/04/18  08:15:20  quinn
+ * Added dynamic memory allocation on encoding (whew). Code is now somewhat
+ * neater. We'll make the same change for decoding one day.
+ *
+ * Revision 1.9  1995/04/10  10:23:11  quinn
+ * Smallish changes.
+ *
+ * Revision 1.8  1995/03/17  10:17:43  quinn
+ * Added memory management.
+ *
+ * Revision 1.7  1995/03/10  11:44:41  quinn
+ * Fixed serious stack-bug in odr_cons_begin
+ *
+ * Revision 1.6  1995/03/08  12:12:15  quinn
  * Added better error checking.
  *
  * Revision 1.5  1995/03/07  13:28:57  quinn
@@ -28,8 +71,11 @@
 #include <stdio.h>
 #include <stdlib.h>
 
+#include <xmalloc.h>
 #include <odr.h>
 
+Odr_null *ODR_NULLVAL = "NULL";  /* the presence of a null value */
+
 char *odr_errlist[] =
 {
     "No (unknown) error",
@@ -40,9 +86,16 @@ char *odr_errlist[] =
     "Unexpected tag",
     "Other error",
     "Protocol error",
-    "Malformed data"
+    "Malformed data",
+    "Stack overflow",
+    "Length of constructed type different from sum of members"
 };
 
+char *odr_errmsg(int n)
+{
+    return odr_errlist[n];
+}
+
 void odr_perror(ODR o, char *message)
 {
     fprintf(stderr, "%s: %s\n", message, odr_errlist[o->error]);
@@ -62,12 +115,16 @@ ODR odr_createmem(int direction)
 {
     struct odr *r;
 
-    if (!(r = malloc(sizeof(*r))))
-       return 0;
+    if (!(r = xmalloc(sizeof(*r))))
+        return 0;
     r->direction = direction;
-    r->print = stdout;
+    r->print = stderr;
     r->buf = 0;
+    r->ecb.buf = 0;
+    r->ecb.size = r->ecb.pos = r->ecb.top = 0;
+    r->ecb.can_grow = 1;
     r->buflen = 0;
+    r->mem = nmem_create();
     odr_reset(r);
     return r;
 }
@@ -76,26 +133,42 @@ void odr_reset(ODR o)
 {
     o->error = ONONE;
     o->bp = o->buf;
+    odr_seek(o, ODR_S_SET, 0);
+    o->ecb.top = 0;
     o->left = o->buflen;
     o->t_class = -1;
     o->t_tag = -1;
     o->indent = 0;
     o->stackp = -1;
+    nmem_reset(o->mem);
+    o->choice_bias = -1;
 }
     
 void odr_destroy(ODR o)
 {
-    free(o);
+    nmem_destroy(o->mem);
+    if (o->ecb.buf && o->ecb.can_grow)
+       xfree(o->ecb.buf);
+    if (o->print != stderr)
+        fclose(o->print);
+   xfree(o);
 }
 
-void odr_setbuf(ODR o, char *buf, int len)
+void odr_setbuf(ODR o, char *buf, int len, int can_grow)
 {
     o->buf = o->bp = (unsigned char *) buf;
     o->buflen = o->left = len;
+
+    o->ecb.buf = (unsigned char *) buf;
+    o->ecb.can_grow = can_grow;
+    o->ecb.top = o->ecb.pos = 0;
+    o->ecb.size = len;
 }
 
-char *odr_getbuf(ODR o, int *len)
+char *odr_getbuf(ODR o, int *len, int *size)
 {
-    *len = o->bp - o->buf;
-    return (char *) o->buf;
+    *len = o->ecb.top;
+    if (size)
+        *size = o->ecb.size;
+    return (char*) o->ecb.buf;
 }