Add Zthes tag-set -- where was it?!

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

diff --git a/odr/ber_int.c b/odr/ber_int.c
index 4f036c4..6fa7a41 100644 (file)
--- a/odr/ber_int.c
+++ b/odr/ber_int.c
@@ -1,33 +1,27 @@
 /*
- * Copyright (C) 1994, Index Data I/S 
- * All rights reserved.
+ * Copyright (c) 1995-2002, Index Data
+ * See the file LICENSE for details.
  * Sebastian Hammer, Adam Dickmeiss
  *
- * $Log: ber_int.c,v $
- * 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
- * First kick.
- *
+ * $Id: ber_int.c,v 1.20 2002-07-25 12:51:08 adam Exp $
  */
+#if HAVE_CONFIG_H
+#include <config.h>
+#endif
 
-#include <odr.h>
-#include <sys/types.h>
-#include <netinet/in.h>  /* for htons... */
 #include <string.h>
 
-static int ber_encinteger(unsigned char *buf, int val, int maxlen);
-static int ber_decinteger(unsigned char *buf, int *val);
+#ifdef WIN32
+#include <winsock.h>
+#else
+#include <sys/types.h>
+#include <netinet/in.h>
+#endif
+
+#include "odr-priv.h"
+
+static int ber_encinteger(ODR o, int val);
+static int ber_decinteger(const unsigned char *buf, int *val);
 
 int ber_integer(ODR o, int *val)
 {
@@ -35,80 +29,75 @@ int ber_integer(ODR o, int *val)
 
     switch (o->direction)
     {
-       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->bp, *val, o->left)) <= 0)
-           {
-               o->error = OSPACE;
-               return 0;
-           }
-           o->bp += res;
-           o->left -= res;
-           return 1;
-       case ODR_PRINT: return 1;
-       default: o->error = OOTHER;  return 0;
+        case ODR_DECODE:
+            if ((res = ber_decinteger(o->bp, val)) <= 0)
+            {
+                o->error = OPROTO;
+                return 0;
+            }
+            o->bp += 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;
+    for (a = 0; a < (int) 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;
+    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);
 #endif
-    return b - buf;
+    return 0;
 }
 
 /*
  * Returns: Number of bytes read or 0 if no match, -1 if error.
  */
-int ber_decinteger(unsigned char *buf, int *val)
+int ber_decinteger(const unsigned char *buf, int *val)
 {
-    unsigned char *b = buf, fill;
+    const unsigned char *b = buf;
+    unsigned char fill;
     int res, len, remains;
     union { int i; unsigned char c[sizeof(int)]; } tmp;
 
     if ((res = ber_declen(b, &len)) < 0)
-       return -1;
-    if (len > sizeof(int))    /* let's be reasonable, here */
-       return -1;
+        return -1;
+    if (len > (int) sizeof(int))    /* let's be reasonable, here */
+        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);