Added several type casts for C++ compilation. ZOOM fixes.

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

diff --git a/odr/odr.c b/odr/odr.c
index 5c21f2f..a0f34e1 100644 (file)
--- a/odr/odr.c
+++ b/odr/odr.c
@@ -1,54 +1,26 @@
 /*
- * Copyright (c) 1995, Index Data
+ * Copyright (c) 1995-2002, Index Data
  * See the file LICENSE for details.
- * Sebastian Hammer, Adam Dickmeiss
- *
- * $Log: odr.c,v $
- * 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
- * *** empty log message ***
- *
- * Revision 1.4  1995/03/07  13:16:13  quinn
- * Fixed bug in odr_reset
- *
- * Revision 1.3  1995/03/07  10:21:31  quinn
- * odr_errno-->odr_error
- *
- * Revision 1.2  1995/03/07  10:19:05  quinn
- * Addded some method functions to the ODR type.
- *
- * Revision 1.1  1995/03/07  09:23:15  quinn
- * Installing top-level API and documentation.
  *
+ * $Id: odr.c,v 1.38 2002-09-24 08:05:41 adam Exp $
  *
  */
+#if HAVE_CONFIG_H
+#include <config.h>
+#endif
 
 #include <stdio.h>
 #include <stdlib.h>
 
-#include <dmalloc.h>
-#include <odr.h>
+#include <yaz/xmalloc.h>
+#include "odr-priv.h"
+
+Odr_null *ODR_NULLVAL = (Odr_null *) "NULL";  /* the presence of a null value */
+
+Odr_null *odr_nullval (void)
+{
+    return ODR_NULLVAL;
+}
 
 char *odr_errlist[] =
 {
@@ -61,9 +33,16 @@ char *odr_errlist[] =
     "Other error",
     "Protocol error",
     "Malformed data",
-    "Stack overflow"
+    "Stack overflow",
+    "Length of constructed type different from sum of members",
+    "Overflow writing definite length of constructed type"
 };
 
+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]);
@@ -79,21 +58,37 @@ void odr_setprint(ODR o, FILE *file)
     o->print = file;
 }
 
+int odr_set_charset(ODR o, const char *to, const char *from)
+{
+    if (o->op->iconv_handle)
+        yaz_iconv_close (o->op->iconv_handle);
+
+    o->op->iconv_handle = yaz_iconv_open (to, from);
+    if (o->op->iconv_handle == 0)
+        return -1;
+    return 0;
+}
+
+#include <yaz/log.h>
+
 ODR odr_createmem(int direction)
 {
-    struct odr *r;
+    ODR r;
 
-    if (!(r = malloc(sizeof(*r))))
-       return 0;
+    if (!(r = (ODR)xmalloc(sizeof(*r))))
+        return 0;
     r->direction = direction;
     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 = 0;
+    r->size = r->pos = r->top = 0;
+    r->can_grow = 1;
+    r->mem = nmem_create();
+    r->enable_bias = 1;
+    r->op = (struct Odr_private *) xmalloc (sizeof(*r->op));
+    r->op->odr_ber_tag.lclass = -1;
+    r->op->iconv_handle = 0;
     odr_reset(r);
+    yaz_log (LOG_DEBUG, "odr_createmem dir=%d o=%p", direction, r);
     return r;
 }
 
@@ -102,41 +97,47 @@ 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->top = 0;
     o->t_class = -1;
     o->t_tag = -1;
     o->indent = 0;
-    o->stackp = -1;
-    odr_release_mem(o->mem);
-    o->mem = 0;
+    o->op->stackp = -1;
+    nmem_reset(o->mem);
+    o->choice_bias = -1;
+    o->lenlen = 1;
+    if (o->op->iconv_handle != 0)
+        yaz_iconv(o->op->iconv_handle, 0, 0, 0, 0);
+    yaz_log (LOG_DEBUG, "odr_reset o=%p", o);
 }
     
 void odr_destroy(ODR o)
 {
-    odr_release_mem(o->mem);
-    if (o->ecb.buf && o->ecb.can_grow)
-       free(o->ecb.buf);
-    if (o->print != stderr)
-       fclose(o->print);
-    free(o);
+    nmem_destroy(o->mem);
+    if (o->buf && o->can_grow)
+       xfree(o->buf);
+    if (o->print && o->print != stderr)
+        fclose(o->print);
+    if (o->op->iconv_handle != 0)
+        yaz_iconv_close (o->op->iconv_handle);
+    xfree(o->op);
+    xfree(o);
+    yaz_log (LOG_DEBUG, "odr_destroy o=%p", o);
 }
 
 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->bp = (unsigned char *) buf;
 
-    o->ecb.buf = (unsigned char *) buf;
-    o->ecb.can_grow = can_grow;
-    o->ecb.top = o->ecb.pos = 0;
-    o->ecb.size = len;
+    o->buf = (unsigned char *) buf;
+    o->can_grow = can_grow;
+    o->top = o->pos = 0;
+    o->size = len;
 }
 
 char *odr_getbuf(ODR o, int *len, int *size)
 {
-    *len = o->ecb.top;
+    *len = o->top;
     if (size)
-       *size = o->ecb.size;
-    return (char*) o->ecb.buf;
+        *size = o->size;
+    return (char*) o->buf;
 }