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 36 RCSID("$Id$"); 37 38 static int help_flag; 39 static int version_flag; 40 static char *port_str; 41 static char *keytab_str; 42 krb5_keytab keytab; 43 char *service = SERVICE; 44 char *mech = "krb5"; 45 int fork_flag; 46 char *password = NULL; 47 48 static struct getargs args[] = { 49 { "port", 'p', arg_string, &port_str, "port to listen to", "port" }, 50 { "service", 's', arg_string, &service, "service to use", "service" }, 51 { "keytab", 'k', arg_string, &keytab_str, "keytab to use", "keytab" }, 52 { "mech", 'm', arg_string, &mech, "gssapi mech to use", "mech" }, 53 { "password", 'P', arg_string, &password, "password to use", "password" }, 54 { "fork", 'f', arg_flag, &fork_flag, "do fork" }, 55 { "help", 'h', arg_flag, &help_flag }, 56 { "version", 0, arg_flag, &version_flag } 57 }; 58 59 static int num_args = sizeof(args) / sizeof(args[0]); 60 61 static void 62 server_usage(int code, struct getargs *args, int num_args) 63 { 64 arg_printusage(args, num_args, NULL, ""); 65 exit(code); 66 } 67 68 static void 69 client_usage(int code, struct getargs *args, int num_args) 70 { 71 arg_printusage(args, num_args, NULL, "host"); 72 exit(code); 73 } 74 75 76 static int 77 common_setup(krb5_context *context, int *argc, char **argv, 78 void (*usage)(int, struct getargs*, int)) 79 { 80 int port = 0; 81 *argc = krb5_program_setup(context, *argc, argv, args, num_args, usage); 82 83 if(help_flag) 84 (*usage)(0, args, num_args); 85 if(version_flag) { 86 print_version(NULL); 87 exit(0); 88 } 89 90 if(port_str){ 91 struct servent *s = roken_getservbyname(port_str, "tcp"); 92 if(s) 93 port = s->s_port; 94 else { 95 char *ptr; 96 97 port = strtol (port_str, &ptr, 10); 98 if (port == 0 && ptr == port_str) 99 errx (1, "Bad port `%s'", port_str); 100 port = htons(port); 101 } 102 } 103 104 if (port == 0) 105 port = krb5_getportbyname (*context, PORT, "tcp", 4711); 106 107 return port; 108 } 109 110 int 111 server_setup(krb5_context *context, int argc, char **argv) 112 { 113 int port = common_setup(context, &argc, argv, server_usage); 114 krb5_error_code ret; 115 116 if(argv[argc] != NULL) 117 server_usage(1, args, num_args); 118 if (keytab_str != NULL) 119 ret = krb5_kt_resolve (*context, keytab_str, &keytab); 120 else 121 ret = krb5_kt_default (*context, &keytab); 122 if (ret) 123 krb5_err (*context, 1, ret, "krb5_kt_resolve/default"); 124 return port; 125 } 126 127 int 128 client_setup(krb5_context *context, int *argc, char **argv) 129 { 130 int optind = *argc; 131 int port = common_setup(context, &optind, argv, client_usage); 132 if(*argc - optind != 1) 133 client_usage(1, args, num_args); 134 *argc = optind; 135 return port; 136 } 137 138 int 139 client_doit (const char *hostname, int port, const char *service, 140 int (*func)(int, const char *hostname, const char *service)) 141 { 142 struct addrinfo *ai, *a; 143 struct addrinfo hints; 144 int error; 145 char portstr[NI_MAXSERV]; 146 147 memset (&hints, 0, sizeof(hints)); 148 hints.ai_socktype = SOCK_STREAM; 149 hints.ai_protocol = IPPROTO_TCP; 150 151 snprintf (portstr, sizeof(portstr), "%u", ntohs(port)); 152 153 error = getaddrinfo (hostname, portstr, &hints, &ai); 154 if (error) { 155 errx (1, "%s: %s", hostname, gai_strerror(error)); 156 return -1; 157 } 158 159 for (a = ai; a != NULL; a = a->ai_next) { 160 int s; 161 162 s = socket (a->ai_family, a->ai_socktype, a->ai_protocol); 163 if (s < 0) 164 continue; 165 if (connect (s, a->ai_addr, a->ai_addrlen) < 0) { 166 warn ("connect(%s)", hostname); 167 close (s); 168 continue; 169 } 170 freeaddrinfo (ai); 171 return (*func) (s, hostname, service); 172 } 173 warnx ("failed to contact %s", hostname); 174 freeaddrinfo (ai); 175 return 1; 176 } 177