Add gss support from citi @ umich

[nfs-utils.git] / support / gssapi / g_dup_name.c

diff --git a/support/gssapi/g_dup_name.c b/support/gssapi/g_dup_name.c
new file mode 100644 (file)
index 0000000..bb88813
--- /dev/null
+++ b/support/gssapi/g_dup_name.c
@@ -0,0 +1,162 @@
+/*
+                                * Copyright 1996 by Sun Microsystems, Inc.
+ *
+ * Permission to use, copy, modify, distribute, and sell this software
+ * and its documentation for any purpose is hereby granted without fee,
+ * provided that the above copyright notice appears in all copies and
+ * that both that copyright notice and this permission notice appear in
+ * supporting documentation, and that the name of Sun Microsystems not be used
+ * in advertising or publicity pertaining to distribution of the software
+ * without specific, written prior permission. Sun Microsystems makes no
+ * representations about the suitability of this software for any
+ * purpose.  It is provided "as is" without express or implied warranty.
+ *
+ * SUN MICROSYSTEMS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL SUN MICROSYSTEMS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+ * USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ *
+ * created andros 2.24.01 from g_compare_name.c
+ */
+
+/*
+ *  glue routine for gss_duplicate_name
+ *
+ */
+
+#include <stdio.h>
+#include "mglueP.h"
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+#include <string.h>
+#include <errno.h>
+
+OM_uint32 KRB5_CALLCONV
+gss_duplicate_name (minor_status,
+                   in_name,
+                   exp_name)
+OM_uint32 *            minor_status;
+const gss_name_t               in_name;
+gss_name_t             *exp_name;
+{
+    OM_uint32          tmp,major_status =  GSS_S_COMPLETE;
+    gss_union_name_t   union_in_name, union_exp_name;
+    gss_mechanism      mech;
+
+    gss_initialize();
+
+    /* if exp_name is NULL, simply return */
+    if (exp_name == NULL)
+       return (GSS_S_COMPLETE);
+
+    *exp_name = NULL;
+
+    if (in_name == 0)
+       return (GSS_S_BAD_NAME);
+
+    union_in_name = (gss_union_name_t) in_name;
+
+    /*
+     * Create the union name struct that will hold the exported
+     * name and the name type.
+     */
+
+    union_exp_name = (gss_union_name_t) malloc (sizeof(gss_union_name_desc));
+    if (!union_exp_name) {
+       *minor_status = ENOMEM;
+       goto allocation_failure;
+    }
+#ifdef DEBUG
+    fprintf(stderr, "gss_duplicate_name: copying *oid %p\n",
+               union_in_name->mech_type);
+#endif
+    union_exp_name->gss_mech = union_in_name->gss_mech;
+    union_exp_name->mech_type = GSS_C_NO_OID;
+    if (union_in_name->mech_type != GSS_C_NO_OID &&
+       (generic_gss_copy_oid(&tmp, union_in_name->mech_type,
+                       &union_exp_name->mech_type) != GSS_S_COMPLETE)) {
+       *minor_status = ENOMEM;
+       goto allocation_failure;
+    }
+    union_exp_name->mech_name = NULL;
+    union_exp_name->name_type = GSS_C_NO_OID;
+    if (union_in_name->name_type != GSS_C_NO_OID &&
+       (generic_gss_copy_oid(&tmp, union_in_name->name_type,
+                       &union_exp_name->name_type) != GSS_S_COMPLETE)) {
+       *minor_status = ENOMEM;
+       goto allocation_failure;
+    }
+    union_exp_name->external_name = NULL;
+    union_exp_name->external_name =
+                       (gss_buffer_t) malloc(sizeof(gss_buffer_desc));
+    if (!union_exp_name->external_name) {
+       *minor_status = ENOMEM;
+       goto allocation_failure;
+    }
+    union_exp_name->external_name->length = union_in_name->external_name->length;
+    /*
+     * we malloc length+1 to stick a NULL on the end, just in case
+     * Note that this NULL is not included in ->length for a reason!
+     */
+
+    union_exp_name->external_name->value =
+    (void  *) malloc(union_in_name->external_name->length);
+    if (!union_exp_name->external_name->value) {
+       *minor_status = ENOMEM;
+       goto allocation_failure;
+    }
+    memcpy(union_exp_name->external_name->value,
+       union_in_name->external_name->value,
+       union_exp_name->external_name->length);
+
+    /*
+     * Mechanism specific name
+     */
+
+    if (union_in_name->mech_type != GSS_C_NO_OID) {
+       mech = __gss_get_mechanism (union_in_name->mech_type);
+       if (!mech)
+           return (GSS_S_BAD_MECH);
+       if (!mech->gss_duplicate_name)
+           return (GSS_S_BAD_BINDINGS);
+
+#ifdef USE_MECH_CONTEXT
+       major_status = mech->gss_duplicate_name(mech->context, minor_status,
+#else
+       major_status = mech->gss_duplicate_name(minor_status,
+#endif
+           union_in_name->mech_name, &union_exp_name->mech_name);
+       if (major_status != GSS_S_COMPLETE)
+           return (major_status);
+    }
+#ifdef DEBUG
+    fprintf(stderr, "gss_duplicate_name: returning union_exp_name %p\n",
+               union_exp_name);
+#endif
+    *exp_name = union_exp_name;
+    return (major_status);
+
+allocation_failure:
+    if (union_exp_name) {
+       if (union_exp_name->external_name) {
+           if (union_exp_name->external_name->value)
+               free(union_exp_name->external_name->value);
+               free(union_exp_name->external_name);
+       }
+       if (union_exp_name->name_type)
+           generic_gss_release_oid(&tmp, &union_exp_name->name_type);
+       if (union_exp_name->mech_name)
+           __gss_release_internal_name(minor_status, union_exp_name->mech_type,
+               &union_exp_name->mech_name);
+       if (union_exp_name->mech_type)
+           generic_gss_release_oid(&tmp, &union_exp_name->mech_type);
+           free(union_exp_name);
+    }
+return (major_status);
+
+}
+