1 /* 2 * Copyright (c) 2000 - 2004 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 "kuser_locl.h" 35 36 static unsigned 37 read_words (const char *filename, char ***ret_w) 38 { 39 unsigned n, alloc; 40 FILE *f; 41 char buf[256]; 42 char **w = NULL; 43 44 f = fopen (filename, "r"); 45 if (f == NULL) 46 err (1, "cannot open %s", filename); 47 alloc = n = 0; 48 while (fgets (buf, sizeof(buf), f) != NULL) { 49 buf[strcspn(buf, "\r\n")] = '\0'; 50 if (n >= alloc) { 51 alloc += 16; 52 w = erealloc (w, alloc * sizeof(char **)); 53 } 54 w[n++] = estrdup (buf); 55 } 56 *ret_w = w; 57 if (n == 0) 58 errx(1, "%s is an empty file, no words to try", filename); 59 fclose(f); 60 return n; 61 } 62 63 static void 64 generate_requests (const char *filename, unsigned nreq) 65 { 66 krb5_principal client; 67 krb5_context context; 68 krb5_error_code ret; 69 krb5_creds cred; 70 int i; 71 char **words; 72 unsigned nwords; 73 74 ret = krb5_init_context (&context); 75 if (ret) 76 errx (1, "krb5_init_context failed: %d", ret); 77 78 nwords = read_words (filename, &words); 79 80 for (i = 0; i < nreq; ++i) { 81 char *name = words[rand() % nwords]; 82 83 memset(&cred, 0, sizeof(cred)); 84 85 ret = krb5_parse_name (context, name, &client); 86 if (ret) 87 krb5_err (context, 1, ret, "krb5_parse_name %s", name); 88 89 ret = krb5_get_init_creds_password (context, &cred, client, "", 90 NULL, NULL, 0, NULL, NULL); 91 if (ret) 92 krb5_free_cred_contents (context, &cred); 93 krb5_free_principal(context, client); 94 } 95 } 96 97 static int version_flag = 0; 98 static int help_flag = 0; 99 100 static struct getargs args[] = { 101 { "version", 0, arg_flag, &version_flag }, 102 { "help", 0, arg_flag, &help_flag } 103 }; 104 105 static void 106 usage (int ret) 107 { 108 arg_printusage (args, 109 sizeof(args)/sizeof(*args), 110 NULL, 111 "file number"); 112 exit (ret); 113 } 114 115 int 116 main(int argc, char **argv) 117 { 118 int optidx = 0; 119 int nreq; 120 char *end; 121 122 setprogname(argv[0]); 123 if(getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &optidx)) 124 usage(1); 125 126 if (help_flag) 127 usage (0); 128 129 if(version_flag) { 130 print_version(NULL); 131 exit(0); 132 } 133 134 argc -= optidx; 135 argv += optidx; 136 137 if (argc != 2) 138 usage (1); 139 srand (0); 140 nreq = strtol (argv[1], &end, 0); 141 if (argv[1] == end || *end != '\0') 142 usage (1); 143 generate_requests (argv[0], nreq); 144 return 0; 145 } 146