appl/test/nt_gss_common.c

   1 /*
   2  * Copyright (c) 1997, 1998, 1999 Kungliga Tekniska Högskolan
   3  * (Royal Institute of Technology, Stockholm, Sweden).
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  *
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  *
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * 3. Neither the name of the Institute nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  */
  33
  34 #include "test_locl.h"
  35 #include <gssapi.h>
  36 #include "nt_gss_common.h"
  37
  38 RCSID("$Id$");
  39
  40 /*
  41  * These are functions that are needed to interoperate with the
  42  * `Sample SSPI Code' in Windows 2000 RC1 SDK.
  43  */
  44
  45 /*
  46  * Write the `gss_buffer_t' in `buf' onto the fd `sock', but remember that
  47  * the length is written in little-endian-order.
  48  */
  49
  50 void
  51 nt_write_token (int sock, gss_buffer_t buf)
  52 {
  53     unsigned char net_len[4];
  54     uint32_t len;
  55     OM_uint32 min_stat;
  56
  57     len = buf->length;
  58
  59     net_len[0] = (len >>  0) & 0xFF;
  60     net_len[1] = (len >>  8) & 0xFF;
  61     net_len[2] = (len >> 16) & 0xFF;
  62     net_len[3] = (len >> 24) & 0xFF;
  63
  64     if (write (sock, net_len, 4) != 4)
  65         err (1, "write");
  66     if (write (sock, buf->value, len) != len)
  67         err (1, "write");
  68
  69     gss_release_buffer (&min_stat, buf);
  70 }
  71
  72 /*
  73  *
  74  */
  75
  76 void
  77 nt_read_token (int sock, gss_buffer_t buf)
  78 {
  79     unsigned char net_len[4];
  80     uint32_t len;
  81
  82     if (read(sock, net_len, 4) != 4)
  83         err (1, "read");
  84     len = (net_len[0] <<  0)
  85         | (net_len[1] <<  8)
  86         | (net_len[2] << 16)
  87         | (net_len[3] << 24);
  88
  89     if (len > INT_MAX/16)
  90         errx(1, "len too large");
  91     buf->length = len;
  92     buf->value  = malloc(len);
  93     if (read (sock, buf->value, len) != len)
  94         err (1, "read");
  95 }
  96
  97 void
  98 gss_print_errors (int min_stat)
  99 {
 100     OM_uint32 new_stat;
 101     OM_uint32 msg_ctx = 0;
 102     gss_buffer_desc status_string;
 103     OM_uint32 ret;
 104
 105     do {
 106         ret = gss_display_status (&new_stat,
 107                                   min_stat,
 108                                   GSS_C_MECH_CODE,
 109                                   GSS_C_NO_OID,
 110                                   &msg_ctx,
 111                                   &status_string);
 112         fprintf (stderr, "%.*s\n",
 113                 (int)status_string.length,
 114                 (char *)status_string.value);
 115         gss_release_buffer (&new_stat, &status_string);
 116     } while (!GSS_ERROR(ret) && msg_ctx != 0);
 117 }
 118
 119 void
 120 gss_verr(int exitval, int status, const char *fmt, va_list ap)
 121 {
 122     vwarnx (fmt, ap);
 123     gss_print_errors (status);
 124     exit (exitval);
 125 }
 126
 127 void
 128 gss_err(int exitval, int status, const char *fmt, ...)
 129 {
 130     va_list args;
 131
 132     va_start(args, fmt);
 133     gss_verr (exitval, status, fmt, args);
 134     va_end(args);
 135 }