Source restructure. yaz-marcdump part of installation

[yaz-moved-to-github.git] / src / ber_oid.c

diff --git a/src/ber_oid.c b/src/ber_oid.c
new file mode 100644 (file)
index 0000000..276b49b
--- /dev/null
+++ b/src/ber_oid.c
@@ -0,0 +1,113 @@
+/*
+ * Copyright (c) 1995-2003, Index Data
+ * See the file LICENSE for details.
+ * Sebastian Hammer, Adam Dickmeiss
+ *
+ * $Id: ber_oid.c,v 1.1 2003-10-27 12:21:30 adam Exp $
+ */
+#if HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "odr-priv.h"
+
+int ber_oidc(ODR o, Odr_oid *p)
+{
+    int len, lenp, end;
+    int pos, n, res, id;
+    unsigned char octs[8];
+
+    switch (o->direction)
+    {
+    case ODR_DECODE:
+        if ((res = ber_declen(o->bp, &len, odr_max(o))) < 1)
+        {
+            odr_seterror(o, OPROTO, 18);
+            return 0;
+        }
+        if (len < 0)
+        {
+            odr_seterror(o, OPROTO, 19);
+            return 0;
+        }
+        o->bp += res;
+        if (len == 0)
+        {
+            *p = -1;
+            return 1;
+        }
+        if (len > odr_max(o))
+        {
+            odr_seterror(o, OPROTO, 20);
+            return 0;
+        }
+        p[0] = *o->bp / 40;
+        if (p[0] > 2)
+            p[0] = 2;
+        p[1] = *o->bp - p[0] * 40;
+        o->bp++;
+        pos = 2;
+        len--;
+        while (len)
+        {
+            p[pos] = 0;
+            do
+            {
+                if (!len)
+                {
+                    odr_seterror(o, OPROTO, 21);
+                    return 0;
+                }
+                p[pos] <<= 7;
+                p[pos] |= *o->bp & 0X7F;
+                len--;
+            }
+            while (*(o->bp++) & 0X80);
+            pos++;
+        }
+        p[pos] = -1;
+        return 1;
+    case ODR_ENCODE:
+        /* we'll allow ourselves the quiet luxury of only doing encodings
+           shorter than 127 */
+        lenp = odr_tell(o);
+        if (odr_putc(o, 0) < 0)   /* dummy */
+            return 0;
+        if (p[0] < 0 && p[1] <= 0)
+        {
+            odr_seterror(o, ODATA, 23);
+            return 0;
+        }
+        for (pos = 1; p[pos] >= 0; pos++)
+        {
+            id = pos > 1 ? p[pos] : p[0] * 40 + p[1];
+            n = 0;
+            do
+            {
+                octs[n++] = id & 0X7F;
+                id >>= 7;
+            }
+            while (id);
+            while (n--)
+            {
+                unsigned char p;
+
+                p = octs[n] | ((n > 0) << 7);
+                if (odr_putc(o, p) < 0)
+                    return 0;
+            }
+        }
+        end = odr_tell(o);
+        odr_seek(o, ODR_S_SET, lenp);
+        if (ber_enclen(o, (end - lenp) - 1, 1, 1) != 1)
+        {
+            odr_seterror(o, OOTHER, 52);
+            return 0;
+        }
+        odr_seek(o, ODR_S_END, 0);
+        return 1;
+    default: 
+        odr_seterror(o, OOTHER, 22);
+        return 0;
+    }
+}