X-Git-Url: http://git.indexdata.com/?p=yaz-moved-to-github.git;a=blobdiff_plain;f=odr%2Fber_int.c;h=8b5ea7d307411697278256fb6859fe4dadaf99a9;hp=b262781c71920c8d13fa8e5820a554b315227586;hb=8030536c98d595898b316df5eb118b1d6398450c;hpb=0dcf720d5b83783f6dba31f44b12513cefdd2f75

diff --git a/odr/ber_int.c b/odr/ber_int.c
index b262781..8b5ea7d 100644
--- a/odr/ber_int.c
+++ b/odr/ber_int.c
@@ -1,10 +1,41 @@
 /*
- * 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: ber_int.c,v $
- * Revision 1.2  1995-02-07 17:52:58  quinn
+ * Revision 1.12  1996-07-06 19:58:33  quinn
+ * System headerfiles gathered in yconfig
+ *
+ * Revision 1.11  1995/09/29  17:12:16  quinn
+ * Smallish
+ *
+ * Revision 1.10  1995/09/29  17:01:50  quinn
+ * More Windows work
+ *
+ * Revision 1.9  1995/09/28  10:12:39  quinn
+ * Windows-support changes
+ *
+ * Revision 1.8  1995/09/27  15:02:55  quinn
+ * Modified function heads & prototypes.
+ *
+ * Revision 1.7  1995/05/16  08:50:44  quinn
+ * License, documentation, and memory fixes
+ *
+ * Revision 1.6  1995/04/18  08:15:14  quinn
+ * Added dynamic memory allocation on encoding (whew). Code is now somewhat
+ * neater. We'll make the same change for decoding one day.
+ *
+ * Revision 1.5  1995/03/27  15:01:44  quinn
+ * Added include of sys/types to further portability
+ *
+ * Revision 1.4  1995/03/08  12:12:07  quinn
+ * Added better error checking.
+ *
+ * Revision 1.3  1995/02/09  15:51:46  quinn
+ * Works better now.
+ *
+ * Revision 1.2  1995/02/07  17:52:58  quinn
  * A damn mess, but now things work, I think.
  *
  * Revision 1.1  1995/02/02  16:21:52  quinn
@@ -12,11 +43,16 @@
  *
  */
 
-#include <odr.h>
-#include <netinet/in.h>
+
+#define YNETINCLUDE
+#include <yconfig.h>
+
 #include <string.h>
 
-static int ber_encinteger(unsigned char *buf, int val, int maxlen);
+#include <odr.h>
+#include <prt.h>
+
+static int ber_encinteger(ODR o, int val);
 static int ber_decinteger(unsigned char *buf, int *val);
 
 int ber_integer(ODR o, int *val)
@@ -25,49 +61,52 @@ int ber_integer(ODR o, int *val)
 
     switch (o->direction)
     {
-    	case ODR_DECODE:
-	    if ((res = ber_decinteger(o->bp, val)) <= 0)
-	    	return 0;
-	    o->bp += res;
-	    o->left -= res;
-	    return 1;
-    	case ODR_ENCODE:
-	    if ((res = ber_encinteger(o->bp, *val, o->left)) <= 0)
-	    	return 0;
-	    o->bp += res;
-	    o->left -= res;
-	    return 1;
-    	case ODR_PRINT: return 1;
-    	default:  return 0;
+        case ODR_DECODE:
+            if ((res = ber_decinteger(o->bp, val)) <= 0)
+            {
+                o->error = OPROTO;
+                return 0;
+            }
+            o->bp += res;
+            o->left -= res;
+            return 1;
+        case ODR_ENCODE:
+            if ((res = ber_encinteger(o, *val)) < 0)
+                return 0;
+            return 1;
+        case ODR_PRINT: return 1;
+        default: o->error = OOTHER;  return 0;
     }
 }
 
 /*
  * Returns: number of bytes written or -1 for error (out of bounds).
  */
-int ber_encinteger(unsigned char *buf, int val, int maxlen)
+int ber_encinteger(ODR o, int val)
 {
-    unsigned char *b = buf, *lenpos;
+    int lenpos;
     int a, len;
     union { int i; unsigned char c[sizeof(int)]; } tmp;
 
-    lenpos = b;
-    maxlen--;
-    b++;
-
+    lenpos = odr_tell(o);
+    if (odr_putc(o, 0) < 0)  /* dummy */
+        return -1;
     tmp.i = htonl(val);   /* ensure that that we're big-endian */
     for (a = 0; a < sizeof(int) - 1; a++)  /* skip superfluous octets */
-    	if (!((tmp.c[a] == 0 && !(tmp.c[a+1] & 0X80)) ||
-	    (tmp.c[a] == 0XFF && (tmp.c[a+1] & 0X80))))
-	    break;
-    if ((len = sizeof(int) - a) > maxlen)
-    	return -1;
-    memcpy(b, tmp.c + a, len);
-    b += len;
-    if (ber_enclen(lenpos, len, 1, 1) != 1)
-    	return -1;
+        if (!((tmp.c[a] == 0 && !(tmp.c[a+1] & 0X80)) ||
+            (tmp.c[a] == 0XFF && (tmp.c[a+1] & 0X80))))
+            break;
+    len = sizeof(int) - a;
+    if (odr_write(o, (unsigned char*) tmp.c + a, len) < 0)
+        return -1;
+    odr_seek(o, ODR_S_SET, lenpos);
+    if (ber_enclen(o, len, 1, 1) != 1)
+        return -1;
+    odr_seek(o, ODR_S_END, 0);
+#ifdef ODR_DEBUG
     fprintf(stderr, "[val=%d]", val);
-    return b - buf;
+#endif
+    return 0;
 }
 
 /*
@@ -80,21 +119,23 @@ int ber_decinteger(unsigned char *buf, int *val)
     union { int i; unsigned char c[sizeof(int)]; } tmp;
 
     if ((res = ber_declen(b, &len)) < 0)
-    	return -1;
+        return -1;
     if (len > sizeof(int))    /* let's be reasonable, here */
-    	return -1;
+        return -1;
     b+= res;
 
     remains = sizeof(int) - len;
     memcpy(tmp.c + remains, b, len);
     if (*b & 0X80)
-    	fill = 0XFF;
+        fill = 0XFF;
     else
-    	fill = 0X00;
+        fill = 0X00;
     memset(tmp.c, fill, remains);
     *val = ntohl(tmp.i);
 
     b += len;
+#ifdef ODR_DEBUG
     fprintf(stderr, "[val=%d]", *val);
+#endif
     return b - buf;
 }