Added BER dumper.

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

diff --git a/odr/dumpber.c b/odr/dumpber.c
new file mode 100644 (file)
index 0000000..253e160
--- /dev/null
+++ b/odr/dumpber.c
@@ -0,0 +1,111 @@
+/*
+ * Copyright (c) 1995, Index Data.
+ * See the file LICENSE for details.
+ * Sebastian Hammer, Adam Dickmeiss
+ *
+ * $Log: dumpber.c,v $
+ * Revision 1.1  1995-06-19 12:38:45  quinn
+ * Added BER dumper.
+ *
+ *
+ */
+
+#include <odr.h>
+#include <stdio.h>
+
+static int do_dumpBER(FILE *f, char *buf, int len, int level)
+{
+    int res, ll, class, tag, cons;
+    char *b = buf;
+    
+    if (!len)
+       return 0;
+    if (!buf[0] && !buf[1])
+       return 0;
+    if ((res = ber_dectag(b, &class, &tag, &cons)) <= 0)
+       return 0;
+    if (res > len)
+    {
+       fprintf(stderr, "Unexpected end of buffer\n");
+       return 0;
+    }
+    fprintf(stderr, "%*s", level * 4, "");
+    if (class == ODR_UNIVERSAL)
+    {
+       static char *nl[] =
+       {
+           "Ugh", "BOOLEAN", "INTEGER", "BIT STRING", "OCTET STRING",
+           "NULL", "OID", "OBJECT DESCIPTOR", "EXTERNAL", "REAL",
+           "ENUM", "[UNIV 11]", "[UNIV 12]", "[UNIV 13]", "[UNIV 14]",
+           "[UNIV 15]", "SEQUENCE", "SET", "NUMERICSTRING", "PRINTABLESTRING",
+           "[UNIV 20]", "[UNIV 21]", "[UNIV 22]", "[UNIV 23]", "[UNIV 24]",
+           "GRAPHICSTRING", "VISIBLESTRING", "GENERALSTRING", "[UNIV 28]"
+       };
+
+       if (tag < 28)
+           fprintf(stderr, "%s", nl[tag]);
+       else
+           fprintf(stderr, "[UNIV %d]", tag);
+    }
+    else if (class == ODR_CONTEXT)
+       fprintf(stderr, "[%d]", tag);
+    else
+       fprintf(stderr, "[%d:%d]", class, tag);
+    b += res;
+    len -= res;
+    if ((res = ber_declen(b, &ll)) <= 0)
+    {
+       fprintf(stderr, "bad length\n");
+       return 0;
+    }
+    if (res > len)
+    {
+       fprintf(stderr, "Unexpected end of buffer\n");
+       return 0;
+    }
+    b += res;
+    len -= res;
+    if (ll >= 0)
+       fprintf(stderr, " len=%d\n", ll);
+    else
+       fprintf(stderr, " len=?\n");
+    if (!cons)
+    {
+       if (ll < 0)
+       {
+           fprintf(stderr, "Bad length on primitive type.\n");
+           return 0;
+       }
+       return ll + (b - buf);
+    }
+    if (ll >= 0)
+       len = ll;
+    /* constructed - cycle through children */
+    while ((ll == -1 && len >= 2) || (ll >= 0 && len))
+    {
+       if (ll == -1 && *b == 0 && *(b + 1) == 0)
+           break;
+       if (!(res = do_dumpBER(f, b, len, level + 1)))
+       {
+           fprintf(stderr, "Dump of content element failed.\n");
+           return 0;
+       }
+       b += res;
+       len -= res;
+    }
+    if (ll == -1)
+    {
+       if (len < 2)
+       {
+           fprintf(stderr, "Buffer too short in indefinite lenght.\n");
+           return 0;
+       }
+       return (b - buf) + 2;
+    }
+    return b - buf;
+}
+
+int odr_dumpBER(FILE *f, char *buf, int len)
+{
+    return do_dumpBER(f, buf, len, 0);
+}