usr/src/lib/gss_mechs/mech_spnego/mech/spnego_kerrs.c

   1 /*
   2  * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
   3  */
   4 /*
   5  * lib/krb5/krb/kerrs.c
   6  *
   7  * Copyright 2006 Massachusetts Institute of Technology.
   8  * All Rights Reserved.
   9  *
  10  * Export of this software from the United States of America may
  11  *   require a specific license from the United States Government.
  12  *   It is the responsibility of any person or organization contemplating
  13  *   export to obtain such a license before exporting.
  14  *
  15  * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
  16  * distribute this software and its documentation for any purpose and
  17  * without fee is hereby granted, provided that the above copyright
  18  * notice appear in all copies and that both that copyright notice and
  19  * this permission notice appear in supporting documentation, and that
  20  * the name of M.I.T. not be used in advertising or publicity pertaining
  21  * to distribution of the software without specific, written prior
  22  * permission.  Furthermore if you modify this software you must label
  23  * your software as modified software and not distribute it in such a
  24  * fashion that it might be confused with the original M.I.T. software.
  25  * M.I.T. makes no representations about the suitability of
  26  * this software for any purpose.  It is provided "as is" without express
  27  * or implied warranty.
  28  *
  29  * error-message functions
  30  */
  31 #include        <sys/param.h>
  32 #include        <unistd.h>
  33 #include        <assert.h>
  34 #include        <stdio.h>
  35 #include        <stdlib.h>
  36 #include        <string.h>
  37 #include        <k5-int.h>
  38 #include        <krb5.h>
  39 #include        <mglueP.h>
  40 #include        "gssapiP_spnego.h"
  41 #include        "gssapiP_generic.h"
  42 #include        <gssapi_err_generic.h>
  43
  44 #ifdef DEBUG
  45 static int error_message_debug = 0;
  46 #ifndef ERROR_MESSAGE_DEBUG
  47 #define ERROR_MESSAGE_DEBUG() (error_message_debug != 0)
  48 #endif
  49 #endif
  50
  51 void
  52 spnego_set_error_message (spnego_gss_ctx_id_t ctx, spnego_error_code code,
  53                         const char *fmt, ...)
  54 {
  55     va_list args;
  56     if (ctx == NULL)
  57         return;
  58     va_start (args, fmt);
  59 #ifdef DEBUG
  60     if (ERROR_MESSAGE_DEBUG())
  61         fprintf(stderr,
  62                 "spnego_set_error_message(ctx=%p/err=%p, code=%ld, ...)\n",
  63                 ctx, &ctx->err, (long) code);
  64 #endif
  65     krb5int_vset_error (&ctx->err, code, fmt, args);
  66 #ifdef DEBUG
  67     if (ERROR_MESSAGE_DEBUG())
  68         fprintf(stderr, "->%s\n", ctx->err.msg);
  69 #endif
  70     va_end (args);
  71 }
  72
  73 void
  74 spnego_vset_error_message (spnego_gss_ctx_id_t ctx, spnego_error_code code,
  75                          const char *fmt, va_list args)
  76 {
  77 #ifdef DEBUG
  78     if (ERROR_MESSAGE_DEBUG())
  79         fprintf(stderr, "spnego_vset_error_message(ctx=%p, code=%ld, ...)\n",
  80                 ctx, (long) code);
  81 #endif
  82     if (ctx == NULL)
  83         return;
  84     krb5int_vset_error (&ctx->err, code, fmt, args);
  85 #ifdef DEBUG
  86     if (ERROR_MESSAGE_DEBUG())
  87         fprintf(stderr, "->%s\n", ctx->err.msg);
  88 #endif
  89 }
  90
  91 const char *
  92 spnego_get_error_message (spnego_gss_ctx_id_t ctx, spnego_error_code code)
  93 {
  94 #ifdef DEBUG
  95     if (ERROR_MESSAGE_DEBUG())
  96         fprintf(stderr, "spnego_get_error_message(%p, %ld)\n", ctx, (long) code);
  97 #endif
  98     if (ctx == NULL)
  99         return error_message(code);
 100     return krb5int_get_error (&ctx->err, code);
 101 }
 102
 103 void
 104 spnego_free_error_message (spnego_gss_ctx_id_t ctx, const char *msg)
 105 {
 106 #ifdef DEBUG
 107     if (ERROR_MESSAGE_DEBUG())
 108         fprintf(stderr, "spnego_free_error_message(%p, %p)\n", ctx, msg);
 109 #endif
 110     if (ctx == NULL)
 111         return;
 112     krb5int_free_error (&ctx->err, msg);
 113 }
 114
 115 void
 116 spnego_clear_error_message (spnego_gss_ctx_id_t ctx)
 117 {
 118 #ifdef DEBUG
 119     if (ERROR_MESSAGE_DEBUG())
 120         fprintf(stderr, "spnego_clear_error_message(%p)\n", ctx);
 121 #endif
 122     if (ctx == NULL)
 123         return;
 124     krb5int_clear_error (&ctx->err);
 125 }