/*
- * Copyright (C) 1994, Index Data I/S
- * All rights reserved.
- * Sebastian Hammer, Adam Dickmeiss
+ * Copyright (c) 1995-2003, Index Data
+ * See the file LICENSE for details.
*
- * $Log: odr_cons.c,v $
- * Revision 1.5 1995-02-10 18:57:25 quinn
- * More in the way of error-checking.
- *
- * Revision 1.4 1995/02/10 15:55:29 quinn
- * Bug fixes, mostly.
- *
- * Revision 1.3 1995/02/09 15:51:48 quinn
- * Works better now.
- *
- * Revision 1.2 1995/02/07 17:52:59 quinn
- * A damn mess, but now things work, I think.
- *
- * Revision 1.1 1995/02/02 16:21:53 quinn
- * First kick.
+ * $Id: odr_cons.c,v 1.26 2003-05-20 19:55:30 adam Exp $
*
*/
+#if HAVE_CONFIG_H
+#include <config.h>
+#endif
-#include <odr.h>
+#include "odr-priv.h"
+
+void odr_setlenlen(ODR o, int len)
+{
+ o->lenlen = len;
+}
-int odr_constructed_begin(ODR o, void *p, int class, int tag)
+int odr_constructed_begin(ODR o, void *p, int zclass, int tag,
+ const char *name)
{
int res;
int cons = 1;
+ int lenlen = o->lenlen;
+ if (o->error)
+ return 0;
+ o->lenlen = 1; /* reset lenlen */
if (o->t_class < 0)
{
- o->t_class = class;
+ o->t_class = zclass;
o->t_tag = tag;
}
- if ((res = ber_tag(o, p, o->t_class, o->t_tag, &cons)) < 0)
+ if ((res = ber_tag(o, p, o->t_class, o->t_tag, &cons, 1, name)) < 0)
return 0;
if (!res || !cons)
return 0;
- o->stack[++(o->stackp)].lenb = o->bp;
- if (o->direction == ODR_ENCODE || o->direction == ODR_PRINT)
+ if (o->op->stackp == ODR_MAX_STACK - 1)
{
- o->stack[o->stackp].lenlen = 1;
- o->bp++;
- o->left--;
+ odr_seterror(o, OSTACK, 30);
+ return 0;
+ }
+ o->op->stack[++(o->op->stackp)].lenb = o->bp;
+ o->op->stack[o->op->stackp].len_offset = odr_tell(o);
+#ifdef ODR_DEBUG
+ fprintf(stderr, "[cons_begin(%d)]", o->op->stackp);
+#endif
+ if (o->direction == ODR_ENCODE)
+ {
+ static unsigned char dummy[sizeof(int)+1];
+
+ o->op->stack[o->op->stackp].lenlen = lenlen;
+
+ if (odr_write(o, dummy, lenlen) < 0) /* dummy */
+ {
+ --(o->op->stackp);
+ return 0;
+ }
}
else if (o->direction == ODR_DECODE)
{
- if ((res = ber_declen(o->bp, &o->stack[o->stackp].len)) < 0)
+ if ((res = ber_declen(o->bp, &o->op->stack[o->op->stackp].len,
+ odr_max(o))) < 0)
+ {
+ odr_seterror(o, OOTHER, 31);
+ --(o->op->stackp);
return 0;
- o->stack[o->stackp].lenlen = res;
+ }
+ o->op->stack[o->op->stackp].lenlen = res;
o->bp += res;
- o->left -= res;
+ if (o->op->stack[o->op->stackp].len > odr_max(o))
+ {
+ odr_seterror(o, OOTHER, 32);
+ --(o->op->stackp);
+ return 0;
+ }
}
- else return 0;
-
- o->stack[o->stackp].base = o->bp;
+ else if (o->direction == ODR_PRINT)
+ {
+ odr_prname(o, name);
+ fprintf(o->print, "{\n");
+ o->indent++;
+ }
+ else
+ {
+ odr_seterror(o, OOTHER, 33);
+ --(o->op->stackp);
+ return 0;
+ }
+ o->op->stack[o->op->stackp].base = o->bp;
+ o->op->stack[o->op->stackp].base_offset = odr_tell(o);
return 1;
}
int odr_constructed_more(ODR o)
{
- if (o->stackp < 0)
+ if (o->error)
+ return 0;
+ if (o->op->stackp < 0)
return 0;
- if (o->stack[o->stackp].len >= 0)
- return o->bp - o->stack[o->stackp].base < o->stack[o->stackp].len;
+ if (o->op->stack[o->op->stackp].len >= 0)
+ return o->bp - o->op->stack[o->op->stackp].base < o->op->stack[o->op->stackp].len;
else
return (!(*o->bp == 0 && *(o->bp + 1) == 0));
}
int odr_constructed_end(ODR o)
{
int res;
+ int pos;
- if (o->stackp < 0)
+ if (o->error)
return 0;
+ if (o->op->stackp < 0)
+ {
+ odr_seterror(o, OOTHER, 34);
+ return 0;
+ }
switch (o->direction)
{
- case ODR_DECODE:
- if (o->stack[o->stackp].len < 0)
- {
- if (*o->bp++ == 0 && *(o->bp++) == 0)
- {
- o->left -= 2;
+ case ODR_DECODE:
+ if (o->op->stack[o->op->stackp].len < 0)
+ {
+ if (*o->bp++ == 0 && *(o->bp++) == 0)
+ {
+ o->op->stackp--;
return 1;
- }
- else
- return 0;
- }
- else if (o->bp - o->stack[o->stackp].base !=
- o->stack[o->stackp].len)
- return 0;
- o->stackp--;
- return 1;
- case ODR_ENCODE:
- if ((res = ber_enclen(o->stack[o->stackp].lenb,
- o->bp - o->stack[o->stackp].base,
- o->stack[o->stackp].lenlen, 1)) < 0)
- return 0;
- if (res == 0) /* indefinite encoding */
- {
- *(o->bp++) = *(o->bp++) = 0;
- o->left--;
- }
- o->stackp--;
- return 1;
- case ODR_PRINT: return 1;
- default: return 0;
+ }
+ else
+ {
+ odr_seterror(o, OOTHER, 35);
+ return 0;
+ }
+ }
+ else if (o->bp - o->op->stack[o->op->stackp].base !=
+ o->op->stack[o->op->stackp].len)
+ {
+ odr_seterror(o, OCONLEN, 36);
+ return 0;
+ }
+ o->op->stackp--;
+ return 1;
+ case ODR_ENCODE:
+ pos = odr_tell(o);
+ odr_seek(o, ODR_S_SET, o->op->stack[o->op->stackp].len_offset);
+ if ((res = ber_enclen(o, pos - o->op->stack[o->op->stackp].base_offset,
+ o->op->stack[o->op->stackp].lenlen, 1)) < 0)
+ {
+ odr_seterror(o, OLENOV, 37);
+ return 0;
+ }
+ odr_seek(o, ODR_S_END, 0);
+ if (res == 0) /* indefinite encoding */
+ {
+#ifdef ODR_DEBUG
+ fprintf(stderr, "[cons_end(%d): indefinite]", o->op->stackp);
+#endif
+ if (odr_putc(o, 0) < 0 || odr_putc(o, 0) < 0)
+ return 0;
+ }
+#ifdef ODR_DEBUG
+ else
+ {
+ fprintf(stderr, "[cons_end(%d): definite]", o->op->stackp);
+ }
+#endif
+ o->op->stackp--;
+ return 1;
+ case ODR_PRINT:
+ o->op->stackp--;
+ o->indent--;
+ odr_prname(o, 0);
+ fprintf(o->print, "}\n");
+ return 1;
+ default:
+ odr_seterror(o, OOTHER, 38);
+ return 0;
}
}
projects / yaz-moved-to-github.git / blobdiff