crypto/dist/heimdal/appl/test/gss_common.c

   1 /*
   2  * Copyright (c) 1997 - 2000 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 "gss_common.h"
  37 __RCSID("$Heimdal: gss_common.c 19937 2007-01-16 21:56:01Z lha $"
  38         "$NetBSD$");
  39
  40 void
  41 write_token (int sock, gss_buffer_t buf)
  42 {
  43     uint32_t len, net_len;
  44     OM_uint32 min_stat;
  45
  46     len = buf->length;
  47
  48     net_len = htonl(len);
  49
  50     if (net_write (sock, &net_len, 4) != 4)
  51         err (1, "write");
  52     if (net_write (sock, buf->value, len) != len)
  53         err (1, "write");
  54
  55     gss_release_buffer (&min_stat, buf);
  56 }
  57
  58 static void
  59 enet_read(int fd, void *buf, size_t len)
  60 {
  61     ssize_t ret;
  62
  63     ret = net_read (fd, buf, len);
  64     if (ret == 0)
  65         errx (1, "EOF in read");
  66     else if (ret < 0)
  67         errx (1, "read");
  68 }
  69
  70 void
  71 read_token (int sock, gss_buffer_t buf)
  72 {
  73     uint32_t len, net_len;
  74
  75     enet_read (sock, &net_len, 4);
  76     len = ntohl(net_len);
  77     buf->length = len;
  78     buf->value  = emalloc(len);
  79     enet_read (sock, buf->value, len);
  80 }
  81
  82 void
  83 gss_print_errors (int min_stat)
  84 {
  85     OM_uint32 new_stat;
  86     OM_uint32 msg_ctx = 0;
  87     gss_buffer_desc status_string;
  88     OM_uint32 ret;
  89
  90     do {
  91         ret = gss_display_status (&new_stat,
  92                                   min_stat,
  93                                   GSS_C_MECH_CODE,
  94                                   GSS_C_NO_OID,
  95                                   &msg_ctx,
  96                                   &status_string);
  97         fprintf (stderr, "%.*s\n", (int)status_string.length,
  98                  (char *)status_string.value);
  99         gss_release_buffer (&new_stat, &status_string);
 100     } while (!GSS_ERROR(ret) && msg_ctx != 0);
 101 }
 102
 103 void
 104 gss_verr(int exitval, int status, const char *fmt, va_list ap)
 105 {
 106     vwarnx (fmt, ap);
 107     gss_print_errors (status);
 108     exit (exitval);
 109 }
 110
 111 void
 112 gss_err(int exitval, int status, const char *fmt, ...)
 113 {
 114     va_list args;
 115
 116     va_start(args, fmt);
 117     gss_verr (exitval, status, fmt, args);
 118     va_end(args);
 119 }
 120
 121 gss_OID
 122 select_mech(const char *mech)
 123 {
 124     if (strcasecmp(mech, "krb5") == 0)
 125         return GSS_KRB5_MECHANISM;
 126     else if (strcasecmp(mech, "spnego") == 0)
 127         return GSS_SPNEGO_MECHANISM;
 128     else if (strcasecmp(mech, "no-oid") == 0)
 129         return GSS_C_NO_OID;
 130     else
 131         errx (1, "Unknown mechanism '%s' (spnego, krb5, no-oid)", mech);
 132 }
 133
 134 void
 135 print_gss_name(const char *prefix, gss_name_t name)
 136 {
 137     OM_uint32 maj_stat, min_stat;
 138     gss_buffer_desc name_token;
 139
 140     maj_stat = gss_display_name (&min_stat,
 141                                  name,
 142                                  &name_token,
 143                                  NULL);
 144     if (GSS_ERROR(maj_stat))
 145         gss_err (1, min_stat, "gss_display_name");
 146
 147     fprintf (stderr, "%s `%.*s'\n", prefix,
 148              (int)name_token.length,
 149              (char *)name_token.value);
 150
 151     gss_release_buffer (&min_stat, &name_token);
 152
 153 }