X-Git-Url: http://git.indexdata.com/?p=yaz-moved-to-github.git;a=blobdiff_plain;f=odr%2Fber_len.c;h=e57997ab20f9da844f59175e45acb9f6b4c82e54;hp=e8bf0702ae0c968aaddee877a10edd8e86446a77;hb=59526fbbf2e3b54ce94b3e79e6c7fef9e4f456fb;hpb=10981b2f116449523a9f628c20a78212ce91553e

diff --git a/odr/ber_len.c b/odr/ber_len.c
index e8bf070..e57997a 100644
--- a/odr/ber_len.c
+++ b/odr/ber_len.c
@@ -1,5 +1,35 @@
+/*
+ * Copyright (C) 1995-2000, Index Data.
+ * See the file LICENSE for details.
+ * Sebastian Hammer, Adam Dickmeiss
+ *
+ * $Log: ber_len.c,v $
+ * Revision 1.9  2000-02-29 13:44:55  adam
+ * Check for config.h (currently not generated).
+ *
+ * Revision 1.8  1999/11/30 13:47:11  adam
+ * Improved installation. Moved header files to include/yaz.
+ *
+ * Revision 1.7  1999/01/08 11:23:23  adam
+ * Added const modifier to some of the BER/ODR encoding routines.
+ *
+ * Revision 1.6  1995/09/29 17:12:17  quinn
+ * Smallish
+ *
+ * Revision 1.5  1995/09/27  15:02:55  quinn
+ * Modified function heads & prototypes.
+ *
+ * Revision 1.4  1995/05/16  08:50:45  quinn
+ * License, documentation, and memory fixes
+ *
+ *
+ */
+#if HAVE_CONFIG_H
+#include <config.h>
+#endif
+
 #include <stdio.h>
-#include <odr.h>
+#include <yaz/odr.h>
 
 /*
  * Encode BER length octets. If exact, lenlen is the exact desired
@@ -9,18 +39,19 @@
  * Returns: =0   success, indefinite start-marker set. 1 byte encoded.
  * Returns: -1   failure, out of bounds.
  */
-int ber_enclen(unsigned char *buf, int len, int lenlen, int exact)
+int ber_enclen(ODR o, int len, int lenlen, int exact)
 {
-    unsigned char *b = buf;
     unsigned char octs[sizeof(int)];
     int n = 0;
+    int lenpos, end;
 
 #ifdef ODR_DEBUG
     fprintf(stderr, "[len=%d]", len);
 #endif
     if (len < 0)      /* Indefinite */
     {
-	*b = 0X80;
+    	if (odr_putc(o, 0x80) < 0)
+	    return 0;
 #ifdef ODR_DEBUG
 	fprintf(stderr, "[indefinite]");
 #endif
@@ -28,12 +59,14 @@ int ber_enclen(unsigned char *buf, int len, int lenlen, int exact)
     }
     if (len <= 127 && (lenlen == 1 || !exact)) /* definite short form */
     {
-    	*b = len;
+    	if (odr_putc(o, (unsigned char) len) < 0)
+	    return 0;
     	return 1;
     }
     if (lenlen == 1)
     {
-    	*b = 0X80;
+    	if (odr_putc(o, 0x80) < 0)
+	    return 0;
     	return 0;
     }
     /* definite long form */
@@ -45,14 +78,23 @@ int ber_enclen(unsigned char *buf, int len, int lenlen, int exact)
     while (len);
     if (n >= lenlen)
     	return -1;
-    b++;
+    lenpos = odr_tell(o); /* remember length-of-length position */
+    if (odr_putc(o, 0) < 0)  /* dummy */
+    	return 0;
     if (exact)
     	while (n < --lenlen)        /* pad length octets */
-	    *(++b) = 0;
+	    if (odr_putc(o, 0) < 0)
+	    	return 0;
     while (n--)
-    	*(b++) = octs[n];
-    *buf = (b - buf - 1) | 0X80;
-    return b - buf;
+    	if (odr_putc(o, octs[n]) < 0)
+	    return 0;
+    /* set length of length */
+    end = odr_tell(o);
+    odr_seek(o, ODR_S_SET, lenpos);
+    if (odr_putc(o, (end - lenpos - 1) | 0X80) < 0)
+    	return 0;
+    odr_seek(o, ODR_S_END, 0);
+    return odr_tell(o) - lenpos;
 }
 
 /*
@@ -61,9 +103,9 @@ int ber_enclen(unsigned char *buf, int len, int lenlen, int exact)
  * len = -1   indefinite.
  * len >= 0    Length.
  */
-int ber_declen(unsigned char *buf, int *len)
+int ber_declen(const unsigned char *buf, int *len)
 {
-    unsigned char *b = buf;
+    const unsigned char *b = buf;
     int n;
 
     if (*b == 0X80)     /* Indefinite */