| 1 | /* |
| 2 | Copyright (C) 1989 by the Massachusetts Institute of Technology |
| 3 | |
| 4 | Export of this software from the United States of America is assumed |
| 5 | to require a specific license from the United States Government. |
| 6 | It is the responsibility of any person or organization contemplating |
| 7 | export to obtain such a license before exporting. |
| 8 | |
| 9 | WITHIN THAT CONSTRAINT, permission to use, copy, modify, and |
| 10 | distribute this software and its documentation for any purpose and |
| 11 | without fee is hereby granted, provided that the above copyright |
| 12 | notice appear in all copies and that both that copyright notice and |
| 13 | this permission notice appear in supporting documentation, and that |
| 14 | the name of M.I.T. not be used in advertising or publicity pertaining |
| 15 | to distribution of the software without specific, written prior |
| 16 | permission. M.I.T. makes no representations about the suitability of |
| 17 | this software for any purpose. It is provided "as is" without express |
| 18 | or implied warranty. |
| 19 | |
| 20 | */ |
| 21 | /* $FreeBSD: src/crypto/kerberosIV/kadmin/ksrvutil.c,v 1.1.1.3.2.1 2003/02/14 22:37:37 nectar Exp $ */ |
| 22 | /* $DragonFly: src/crypto/kerberosIV/kadmin/Attic/ksrvutil.c,v 1.2 2003/06/17 04:24:36 dillon Exp $ */ |
| 23 | |
| 24 | /* |
| 25 | * list and update contents of srvtab files |
| 26 | */ |
| 27 | |
| 28 | /* |
| 29 | * ksrvutil |
| 30 | * list and update the contents of srvtab files |
| 31 | */ |
| 32 | |
| 33 | #include "kadm_locl.h" |
| 34 | |
| 35 | RCSID("$Id: ksrvutil.c,v 1.50 1999/11/13 06:33:59 assar Exp $"); |
| 36 | |
| 37 | #include "ksrvutil.h" |
| 38 | |
| 39 | #ifdef NOENCRYPTION |
| 40 | #define read_long_pw_string placebo_read_pw_string |
| 41 | #else /* NOENCRYPTION */ |
| 42 | #define read_long_pw_string des_read_pw_string |
| 43 | #endif /* NOENCRYPTION */ |
| 44 | |
| 45 | #define SRVTAB_MODE 0600 /* rw------- */ |
| 46 | #define PAD " " |
| 47 | #define VNO_HEADER "Version" |
| 48 | #define VNO_FORMAT "%4d " |
| 49 | #define KEY_HEADER " Key " /* 17 characters long */ |
| 50 | #define PRINC_HEADER " Principal\n" |
| 51 | #define PRINC_FORMAT "%s" |
| 52 | |
| 53 | char u_name[ANAME_SZ]; |
| 54 | char u_inst[INST_SZ]; |
| 55 | char u_realm[REALM_SZ]; |
| 56 | |
| 57 | int destroyp = FALSE; /* Should the ticket file be destroyed? */ |
| 58 | |
| 59 | static unsigned short |
| 60 | get_mode(char *filename) |
| 61 | { |
| 62 | struct stat statbuf; |
| 63 | unsigned short mode; |
| 64 | |
| 65 | memset(&statbuf, 0, sizeof(statbuf)); |
| 66 | |
| 67 | if (stat(filename, &statbuf) < 0) |
| 68 | mode = SRVTAB_MODE; |
| 69 | else |
| 70 | mode = statbuf.st_mode; |
| 71 | |
| 72 | return(mode); |
| 73 | } |
| 74 | |
| 75 | static void |
| 76 | copy_keyfile(char *keyfile, char *backup_keyfile) |
| 77 | { |
| 78 | int keyfile_fd; |
| 79 | int backup_keyfile_fd; |
| 80 | int keyfile_mode; |
| 81 | char buf[BUFSIZ]; /* for copying keyfiles */ |
| 82 | int rcount; /* for copying keyfiles */ |
| 83 | int try_again; |
| 84 | |
| 85 | memset(buf, 0, sizeof(buf)); |
| 86 | |
| 87 | do { |
| 88 | try_again = FALSE; |
| 89 | if ((keyfile_fd = open(keyfile, O_RDONLY, 0)) < 0) { |
| 90 | if (errno != ENOENT) |
| 91 | err (1, "open %s", keyfile); |
| 92 | else { |
| 93 | try_again = TRUE; |
| 94 | if ((keyfile_fd = |
| 95 | open(keyfile, |
| 96 | O_WRONLY | O_TRUNC | O_CREAT, SRVTAB_MODE)) < 0) |
| 97 | err(1, "create %s", keyfile); |
| 98 | else |
| 99 | if (close(keyfile_fd) < 0) |
| 100 | err (1, "close %s", keyfile); |
| 101 | } |
| 102 | } |
| 103 | } while(try_again); |
| 104 | |
| 105 | keyfile_mode = get_mode(keyfile); |
| 106 | |
| 107 | if ((backup_keyfile_fd = |
| 108 | open(backup_keyfile, O_WRONLY | O_TRUNC | O_CREAT, |
| 109 | keyfile_mode)) < 0) |
| 110 | err (1, "open %s", backup_keyfile); |
| 111 | do { |
| 112 | if ((rcount = read(keyfile_fd, buf, sizeof(buf))) < 0) |
| 113 | err (1, "read %s", keyfile); |
| 114 | if (rcount && (write(backup_keyfile_fd, buf, rcount) != rcount)) |
| 115 | err (1, "write %s", backup_keyfile); |
| 116 | } while (rcount); |
| 117 | if (close(backup_keyfile_fd) < 0) |
| 118 | err(1, "close %s", backup_keyfile); |
| 119 | if (close(keyfile_fd) < 0) |
| 120 | err(1, "close %s", keyfile); |
| 121 | } |
| 122 | |
| 123 | void |
| 124 | leave(char *str, int x) |
| 125 | { |
| 126 | if (str) |
| 127 | fprintf(stderr, "%s\n", str); |
| 128 | if (destroyp) |
| 129 | dest_tkt(); |
| 130 | exit(x); |
| 131 | } |
| 132 | |
| 133 | void |
| 134 | safe_read_stdin(char *prompt, char *buf, size_t size) |
| 135 | { |
| 136 | printf("%s", prompt); |
| 137 | fflush(stdout); |
| 138 | memset(buf, 0, size); |
| 139 | if (read(0, buf, size - 1) < 0) { |
| 140 | warn("read stdin"); |
| 141 | leave(NULL, 1); |
| 142 | } |
| 143 | buf[strlen(buf)-1] = 0; |
| 144 | } |
| 145 | |
| 146 | void |
| 147 | safe_write(char *filename, int fd, void *buf, size_t len) |
| 148 | { |
| 149 | if (write(fd, buf, len) != len) { |
| 150 | warn("write %s", filename); |
| 151 | close(fd); |
| 152 | leave("In progress srvtab in this file.", 1); |
| 153 | } |
| 154 | } |
| 155 | |
| 156 | static int |
| 157 | yes_no(char *string, int dflt) |
| 158 | { |
| 159 | char ynbuf[5]; |
| 160 | |
| 161 | printf("%s (y,n) [%c]", string, dflt?'y':'n'); |
| 162 | for (;;) { |
| 163 | safe_read_stdin("", ynbuf, sizeof(ynbuf)); |
| 164 | |
| 165 | if ((ynbuf[0] == 'n') || (ynbuf[0] == 'N')) |
| 166 | return(0); |
| 167 | else if ((ynbuf[0] == 'y') || (ynbuf[0] == 'Y')) |
| 168 | return(1); |
| 169 | else if(ynbuf[0] == 0) |
| 170 | return dflt; |
| 171 | else { |
| 172 | printf("Please enter 'y' or 'n': "); |
| 173 | fflush(stdout); |
| 174 | } |
| 175 | } |
| 176 | } |
| 177 | |
| 178 | int yn(char *string) |
| 179 | { |
| 180 | return yes_no(string, 1); |
| 181 | } |
| 182 | |
| 183 | int ny(char *string) |
| 184 | { |
| 185 | return yes_no(string, 0); |
| 186 | } |
| 187 | |
| 188 | static void |
| 189 | append_srvtab(char *filename, int fd, char *sname, char *sinst, char *srealm, |
| 190 | unsigned char key_vno, unsigned char *key) |
| 191 | { |
| 192 | /* Add one to append null */ |
| 193 | safe_write(filename, fd, sname, strlen(sname) + 1); |
| 194 | safe_write(filename, fd, sinst, strlen(sinst) + 1); |
| 195 | safe_write(filename, fd, srealm, strlen(srealm) + 1); |
| 196 | safe_write(filename, fd, &key_vno, 1); |
| 197 | safe_write(filename, fd, key, sizeof(des_cblock)); |
| 198 | fsync(fd); |
| 199 | } |
| 200 | |
| 201 | static void |
| 202 | print_key(unsigned char *key) |
| 203 | { |
| 204 | int i; |
| 205 | |
| 206 | for (i = 0; i < 4; i++) |
| 207 | printf("%02x", key[i]); |
| 208 | printf(" "); |
| 209 | for (i = 4; i < 8; i++) |
| 210 | printf("%02x", key[i]); |
| 211 | } |
| 212 | |
| 213 | static void |
| 214 | print_name(char *name, char *inst, char *realm) |
| 215 | { |
| 216 | printf("%s", krb_unparse_name_long(name, inst, realm)); |
| 217 | } |
| 218 | |
| 219 | static int |
| 220 | get_svc_new_key(des_cblock *new_key, char *sname, char *sinst, |
| 221 | char *srealm, char *keyfile) |
| 222 | { |
| 223 | int status = KADM_SUCCESS; |
| 224 | |
| 225 | if (((status = krb_get_svc_in_tkt(sname, sinst, srealm, PWSERV_NAME, |
| 226 | KADM_SINST, 1, keyfile)) == KSUCCESS) && |
| 227 | ((status = kadm_init_link(PWSERV_NAME, KRB_MASTER, srealm)) == |
| 228 | KADM_SUCCESS)) { |
| 229 | #ifdef NOENCRYPTION |
| 230 | memset(new_key, 0, sizeof(des_cblock)); |
| 231 | (*new_key)[0] = (unsigned char) 1; |
| 232 | #else /* NOENCRYPTION */ |
| 233 | des_random_key(*new_key); |
| 234 | #endif /* NOENCRYPTION */ |
| 235 | return(KADM_SUCCESS); |
| 236 | } |
| 237 | |
| 238 | return(status); |
| 239 | } |
| 240 | |
| 241 | static void |
| 242 | get_key_from_password(des_cblock (*key), char *cellname) |
| 243 | { |
| 244 | char password[MAX_KPW_LEN]; /* storage for the password */ |
| 245 | |
| 246 | if (read_long_pw_string(password, sizeof(password)-1, "Password: ", 1)) |
| 247 | leave("Error reading password.", 1); |
| 248 | |
| 249 | #ifdef NOENCRYPTION |
| 250 | memset(key, 0, sizeof(des_cblock)); |
| 251 | (*key)[0] = (unsigned char) 1; |
| 252 | #else /* NOENCRYPTION */ |
| 253 | if (strlen(cellname) == 0) |
| 254 | des_string_to_key(password, key); |
| 255 | else |
| 256 | afs_string_to_key(password, cellname, key); |
| 257 | #endif /* NOENCRYPTION */ |
| 258 | memset(password, 0, sizeof(password)); |
| 259 | } |
| 260 | |
| 261 | static void |
| 262 | usage(void) |
| 263 | { |
| 264 | fprintf(stderr, "Usage: ksrvutil [-f keyfile] [-i] [-k] "); |
| 265 | fprintf(stderr, "[-p principal] [-r realm] [-u]"); |
| 266 | fprintf(stderr, "[-c AFS cellname] "); |
| 267 | fprintf(stderr, "{list | change | add | get | delete}\n"); |
| 268 | fprintf(stderr, " -i causes the program to ask for " |
| 269 | "confirmation before changing keys.\n"); |
| 270 | fprintf(stderr, " -k causes the key to printed for list or change.\n"); |
| 271 | fprintf(stderr, " -u creates one keyfile for each principal " |
| 272 | "(only used with `get')\n"); |
| 273 | exit(1); |
| 274 | } |
| 275 | |
| 276 | int |
| 277 | main(int argc, char **argv) |
| 278 | { |
| 279 | char sname[ANAME_SZ]; /* name of service */ |
| 280 | char sinst[INST_SZ]; /* instance of service */ |
| 281 | char srealm[REALM_SZ]; /* realm of service */ |
| 282 | unsigned char key_vno; /* key version number */ |
| 283 | int status; /* general purpose error status */ |
| 284 | des_cblock new_key; |
| 285 | des_cblock old_key; |
| 286 | char change_tkt[MaxPathLen]; /* Ticket to use for key change */ |
| 287 | char keyfile[MaxPathLen]; /* Original keyfile */ |
| 288 | char work_keyfile[MaxPathLen]; /* Working copy of keyfile */ |
| 289 | char backup_keyfile[MaxPathLen]; /* Backup copy of keyfile */ |
| 290 | unsigned short keyfile_mode; /* Protections on keyfile */ |
| 291 | int work_keyfile_fd = -1; /* Initialize so that */ |
| 292 | int backup_keyfile_fd = -1; /* compiler doesn't complain */ |
| 293 | char local_realm[REALM_SZ]; /* local kerberos realm */ |
| 294 | char cellname[1024]; /* AFS cell name */ |
| 295 | int c; |
| 296 | int interactive = FALSE; |
| 297 | int list = FALSE; |
| 298 | int change = FALSE; |
| 299 | int unique_filename = FALSE; |
| 300 | int add = FALSE; |
| 301 | int delete = FALSE; |
| 302 | int get = FALSE; |
| 303 | int key = FALSE; /* do we show keys? */ |
| 304 | int arg_entered = FALSE; |
| 305 | int change_this_key = FALSE; |
| 306 | char databuf[BUFSIZ]; |
| 307 | int first_printed = FALSE; /* have we printed the first item? */ |
| 308 | |
| 309 | memset(sname, 0, sizeof(sname)); |
| 310 | memset(sinst, 0, sizeof(sinst)); |
| 311 | memset(srealm, 0, sizeof(srealm)); |
| 312 | |
| 313 | memset(change_tkt, 0, sizeof(change_tkt)); |
| 314 | memset(keyfile, 0, sizeof(keyfile)); |
| 315 | memset(work_keyfile, 0, sizeof(work_keyfile)); |
| 316 | memset(backup_keyfile, 0, sizeof(backup_keyfile)); |
| 317 | memset(local_realm, 0, sizeof(local_realm)); |
| 318 | memset(cellname, 0, sizeof(cellname)); |
| 319 | |
| 320 | set_progname (argv[0]); |
| 321 | |
| 322 | if (krb_get_default_principal(u_name, u_inst, u_realm) < 0) |
| 323 | errx (1, "could not get default principal"); |
| 324 | |
| 325 | /* This is used only as a default for adding keys */ |
| 326 | if (krb_get_lrealm(local_realm, 1) != KSUCCESS) |
| 327 | strlcpy(local_realm, |
| 328 | KRB_REALM, |
| 329 | sizeof(local_realm)); |
| 330 | |
| 331 | while((c = getopt(argc, argv, "ikc:f:p:r:u")) != -1) { |
| 332 | switch (c) { |
| 333 | case 'i': |
| 334 | interactive++; |
| 335 | break; |
| 336 | case 'k': |
| 337 | key++; |
| 338 | break; |
| 339 | case 'c': |
| 340 | strlcpy(cellname, optarg, sizeof(cellname)); |
| 341 | break; |
| 342 | case 'f': |
| 343 | strlcpy(keyfile, optarg, sizeof(keyfile)); |
| 344 | break; |
| 345 | case 'p': |
| 346 | if((status = kname_parse (u_name, u_inst, u_realm, optarg)) != |
| 347 | KSUCCESS) |
| 348 | errx (1, "principal %s: %s", optarg, |
| 349 | krb_get_err_text(status)); |
| 350 | break; |
| 351 | case 'r': |
| 352 | strlcpy(u_realm, optarg, sizeof(u_realm)); |
| 353 | break; |
| 354 | case 'u': |
| 355 | unique_filename = 1; |
| 356 | break; |
| 357 | case '?': |
| 358 | usage(); |
| 359 | } |
| 360 | } |
| 361 | if (optind >= argc) |
| 362 | usage(); |
| 363 | if (*u_realm == '\0') |
| 364 | strlcpy (u_realm, local_realm, sizeof(u_realm)); |
| 365 | if (strcmp(argv[optind], "list") == 0) { |
| 366 | if (arg_entered) |
| 367 | usage(); |
| 368 | else { |
| 369 | arg_entered++; |
| 370 | list++; |
| 371 | } |
| 372 | } |
| 373 | else if (strcmp(argv[optind], "change") == 0) { |
| 374 | if (arg_entered) |
| 375 | usage(); |
| 376 | else { |
| 377 | arg_entered++; |
| 378 | change++; |
| 379 | } |
| 380 | } |
| 381 | else if (strcmp(argv[optind], "add") == 0) { |
| 382 | if (arg_entered) |
| 383 | usage(); |
| 384 | else { |
| 385 | arg_entered++; |
| 386 | add++; |
| 387 | } |
| 388 | } |
| 389 | else if (strcmp(argv[optind], "get") == 0) { |
| 390 | if (arg_entered) |
| 391 | usage(); |
| 392 | else { |
| 393 | arg_entered++; |
| 394 | get++; |
| 395 | } |
| 396 | } |
| 397 | else if (strcmp(argv[optind], "delete") == 0) { |
| 398 | if (arg_entered) |
| 399 | usage(); |
| 400 | else { |
| 401 | arg_entered++; |
| 402 | delete++; |
| 403 | } |
| 404 | } |
| 405 | else |
| 406 | usage(); |
| 407 | ++optind; |
| 408 | |
| 409 | if (!arg_entered) |
| 410 | usage(); |
| 411 | |
| 412 | if(unique_filename && !get) |
| 413 | warnx("`-u' flag is only used with `get'"); |
| 414 | |
| 415 | if (!keyfile[0]) |
| 416 | strlcpy(keyfile, KEYFILE, sizeof(keyfile)); |
| 417 | |
| 418 | strlcpy(work_keyfile, keyfile, sizeof(work_keyfile)); |
| 419 | strlcpy(backup_keyfile, keyfile, sizeof(backup_keyfile)); |
| 420 | |
| 421 | if (change || add || (get && !unique_filename) || delete) { |
| 422 | snprintf(work_keyfile, sizeof(work_keyfile), "%s.work", keyfile); |
| 423 | snprintf(backup_keyfile, sizeof(backup_keyfile), "%s.old", keyfile); |
| 424 | copy_keyfile(keyfile, backup_keyfile); |
| 425 | } |
| 426 | |
| 427 | if (add || (get && !unique_filename)) |
| 428 | copy_keyfile(backup_keyfile, work_keyfile); |
| 429 | |
| 430 | keyfile_mode = get_mode(keyfile); |
| 431 | |
| 432 | if (change || list || delete) |
| 433 | if ((backup_keyfile_fd = open(backup_keyfile, O_RDONLY, 0)) < 0) |
| 434 | err (1, "open %s", backup_keyfile); |
| 435 | |
| 436 | if (change || delete) { |
| 437 | if ((work_keyfile_fd = |
| 438 | open(work_keyfile, O_WRONLY | O_CREAT | O_TRUNC, |
| 439 | SRVTAB_MODE)) < 0) |
| 440 | err (1, "creat %s", work_keyfile); |
| 441 | } |
| 442 | else if (add) { |
| 443 | if ((work_keyfile_fd = |
| 444 | open(work_keyfile, O_APPEND | O_WRONLY, SRVTAB_MODE)) < 0) |
| 445 | err (1, "open with append %s", work_keyfile ); |
| 446 | } |
| 447 | else if (get && !unique_filename) { |
| 448 | if ((work_keyfile_fd = |
| 449 | open(work_keyfile, O_RDWR | O_CREAT, SRVTAB_MODE)) < 0) |
| 450 | err (1, "open for writing %s", work_keyfile); |
| 451 | } |
| 452 | |
| 453 | if (change || list || delete) { |
| 454 | while ((getst(backup_keyfile_fd, sname, SNAME_SZ) > 0) && |
| 455 | (getst(backup_keyfile_fd, sinst, INST_SZ) > 0) && |
| 456 | (getst(backup_keyfile_fd, srealm, REALM_SZ) > 0) && |
| 457 | (read(backup_keyfile_fd, &key_vno, 1) > 0) && |
| 458 | (read(backup_keyfile_fd, old_key, sizeof(old_key)) > 0)) { |
| 459 | if (list) { |
| 460 | if (!first_printed) { |
| 461 | printf(VNO_HEADER); |
| 462 | printf(PAD); |
| 463 | if (key) { |
| 464 | printf(KEY_HEADER); |
| 465 | printf(PAD); |
| 466 | } |
| 467 | printf(PRINC_HEADER); |
| 468 | first_printed = 1; |
| 469 | } |
| 470 | printf(VNO_FORMAT, key_vno); |
| 471 | printf(PAD); |
| 472 | if (key) { |
| 473 | print_key(old_key); |
| 474 | printf(PAD); |
| 475 | } |
| 476 | print_name(sname, sinst, srealm); |
| 477 | printf("\n"); |
| 478 | } |
| 479 | else if (change) { |
| 480 | snprintf(change_tkt, sizeof(change_tkt), "%s_ksrvutil.%u", |
| 481 | TKT_ROOT, (unsigned)getpid()); |
| 482 | krb_set_tkt_string(change_tkt); |
| 483 | destroyp = TRUE; |
| 484 | |
| 485 | printf("\nPrincipal: "); |
| 486 | print_name(sname, sinst, srealm); |
| 487 | printf("; version %d\n", key_vno); |
| 488 | if (interactive) |
| 489 | change_this_key = yn("Change this key?"); |
| 490 | else |
| 491 | change_this_key = 1; |
| 492 | |
| 493 | if (change_this_key) |
| 494 | printf("Changing to version %d.\n", key_vno + 1); |
| 495 | else if (change) |
| 496 | printf("Not changing this key.\n"); |
| 497 | |
| 498 | if (change_this_key) { |
| 499 | /* |
| 500 | * Pick a new key and determine whether or not |
| 501 | * it is safe to change |
| 502 | */ |
| 503 | if ((status = |
| 504 | get_svc_new_key(&new_key, sname, sinst, |
| 505 | srealm, keyfile)) == KADM_SUCCESS) |
| 506 | key_vno++; |
| 507 | else { |
| 508 | memcpy(new_key, old_key, sizeof(new_key)); |
| 509 | warnx ("Key NOT changed: %s\n", |
| 510 | krb_get_err_text(status)); |
| 511 | change_this_key = FALSE; |
| 512 | } |
| 513 | } |
| 514 | else |
| 515 | memcpy(new_key, old_key, sizeof(new_key)); |
| 516 | append_srvtab(work_keyfile, work_keyfile_fd, |
| 517 | sname, sinst, srealm, key_vno, new_key); |
| 518 | if (key && change_this_key) { |
| 519 | printf("Old key: "); |
| 520 | print_key(old_key); |
| 521 | printf("; new key: "); |
| 522 | print_key(new_key); |
| 523 | printf("\n"); |
| 524 | } |
| 525 | if (change_this_key) { |
| 526 | if ((status = kadm_change_pw(new_key)) == KADM_SUCCESS) { |
| 527 | printf("Key changed.\n"); |
| 528 | dest_tkt(); |
| 529 | } |
| 530 | else { |
| 531 | com_err(__progname, status, |
| 532 | " attempting to change password."); |
| 533 | dest_tkt(); |
| 534 | /* XXX This knows the format of a keyfile */ |
| 535 | if (lseek(work_keyfile_fd, -9, SEEK_CUR) >= 0) { |
| 536 | key_vno--; |
| 537 | safe_write(work_keyfile, |
| 538 | work_keyfile_fd, &key_vno, 1); |
| 539 | safe_write(work_keyfile, work_keyfile_fd, |
| 540 | old_key, sizeof(des_cblock)); |
| 541 | fsync(work_keyfile_fd); |
| 542 | fprintf(stderr,"Key NOT changed.\n"); |
| 543 | } else { |
| 544 | warn ("Unable to revert keyfile"); |
| 545 | leave("", 1); |
| 546 | } |
| 547 | } |
| 548 | } |
| 549 | } else if(delete) { |
| 550 | int delete_this_key; |
| 551 | printf("\nPrincipal: "); |
| 552 | print_name(sname, sinst, srealm); |
| 553 | printf("; version %d\n", key_vno); |
| 554 | delete_this_key = yn("Delete this key?"); |
| 555 | |
| 556 | if (delete_this_key) |
| 557 | printf("Deleting this key.\n"); |
| 558 | |
| 559 | if (!delete_this_key) { |
| 560 | append_srvtab(work_keyfile, work_keyfile_fd, |
| 561 | sname, sinst, srealm, key_vno, old_key); |
| 562 | } |
| 563 | } |
| 564 | memset(old_key, 0, sizeof(des_cblock)); |
| 565 | memset(new_key, 0, sizeof(des_cblock)); |
| 566 | } |
| 567 | } |
| 568 | else if (add) { |
| 569 | do { |
| 570 | do { |
| 571 | char *p; |
| 572 | |
| 573 | safe_read_stdin("Name: ", databuf, sizeof(databuf)); |
| 574 | p = strchr(databuf, '.'); |
| 575 | if (p != NULL) { |
| 576 | *p++ = '\0'; |
| 577 | strlcpy (sname, databuf, sizeof(sname)); |
| 578 | strlcpy (sinst, p, sizeof(sinst)); |
| 579 | } else { |
| 580 | strlcpy (sname, databuf, sizeof(sname)); |
| 581 | safe_read_stdin("Instance: ", databuf, sizeof(databuf)); |
| 582 | strlcpy (sinst, databuf, sizeof(databuf)); |
| 583 | } |
| 584 | |
| 585 | safe_read_stdin("Realm: ", databuf, sizeof(databuf)); |
| 586 | if (databuf[0] != '\0') |
| 587 | strlcpy (srealm, databuf, sizeof(srealm)); |
| 588 | else |
| 589 | strlcpy (srealm, local_realm, sizeof(srealm)); |
| 590 | |
| 591 | safe_read_stdin("Version number: ", databuf, sizeof(databuf)); |
| 592 | key_vno = atoi(databuf); |
| 593 | if (!srealm[0]) |
| 594 | strlcpy(srealm, local_realm, sizeof(srealm)); |
| 595 | printf("New principal: "); |
| 596 | print_name(sname, sinst, srealm); |
| 597 | printf("; version %d\n", key_vno); |
| 598 | } while (!yn("Is this correct?")); |
| 599 | get_key_from_password(&new_key, cellname); |
| 600 | if (key) { |
| 601 | printf("Key: "); |
| 602 | print_key(new_key); |
| 603 | printf("\n"); |
| 604 | } |
| 605 | append_srvtab(work_keyfile, work_keyfile_fd, |
| 606 | sname, sinst, srealm, key_vno, new_key); |
| 607 | printf("Key successfully added.\n"); |
| 608 | } while (yn("Would you like to add another key?")); |
| 609 | } |
| 610 | else if (get) { |
| 611 | ksrvutil_get(unique_filename, work_keyfile_fd, work_keyfile, |
| 612 | argc - optind, argv + optind); |
| 613 | } |
| 614 | |
| 615 | if (change || list || delete) |
| 616 | if (close(backup_keyfile_fd) < 0) |
| 617 | warn ("close %s", backup_keyfile); |
| 618 | |
| 619 | if (change || add || (get && !unique_filename) || delete) { |
| 620 | if (close(work_keyfile_fd) < 0) |
| 621 | err (1, "close %s", work_keyfile); |
| 622 | if (rename(work_keyfile, keyfile) < 0) |
| 623 | err (1, "rename(%s, %s)", work_keyfile, keyfile); |
| 624 | chmod(backup_keyfile, keyfile_mode); |
| 625 | chmod(keyfile, keyfile_mode); |
| 626 | printf("Old keyfile in %s.\n", backup_keyfile); |
| 627 | } |
| 628 | return 0; |
| 629 | } |