| 1 | /* |
| 2 | * |
| 3 | * 1.1 mike 5/77 - all files copied to spooler space |
| 4 | * (see note below) |
| 5 | * |
| 6 | * 1.2 dlm 26 Sep 1977 |
| 7 | * fix for allowing variable indents (-i flag) |
| 8 | * |
| 9 | * 1.3 dlm/njl 12 Dec 1977 |
| 10 | * fix for open pipe when spawning progess (affects lpd) |
| 11 | * |
| 12 | * 1.4 dlm 24 Feb 1978 |
| 13 | * test for data files; add -C option for classification |
| 14 | * and change format of $L card; reversed 1.1 on copies |
| 15 | * |
| 16 | * 1.5 dlm 27 Mar 1978 |
| 17 | * add job name and -h option |
| 18 | * |
| 19 | * 2.0 was 21 Dec 1978 |
| 20 | * -h option changed to -J |
| 21 | * added -H option to cause header page to be |
| 22 | * printed, default is no header page |
| 23 | * added -p option to cause files to be printed |
| 24 | * using pr |
| 25 | * default for classification changed |
| 26 | * |
| 27 | * 2.1 was 14 Mar 1979 |
| 28 | * multiple printer logic changed, |
| 29 | * printer number sent to daemon. |
| 30 | * |
| 31 | * 3.0 sjl 6 May 1980 |
| 32 | * Mods for Version 7, plus portability |
| 33 | * (in preparation for UNIX/24V) |
| 34 | * |
| 35 | * 3.1 sjl Oct 28 1980 |
| 36 | * Mods for protected spooling area, see note below |
| 37 | * |
| 38 | * 3.2 sjl Mar 13 1981 |
| 39 | * Add N card for file names to help out sq |
| 40 | * |
| 41 | * 3.3 sjl Mar 27 1981 from decvax!shannon |
| 42 | * Mods and cleanup for 4bsd. |
| 43 | * Send mail option added. |
| 44 | * |
| 45 | * 4.0 sjl Mar 28 1981 |
| 46 | * Support multiple printers and daemons through termcap-like |
| 47 | * data base |
| 48 | * |
| 49 | * 4.1 sjl Apr 28 1981 |
| 50 | * Check for printer being down (mode 0 on device) |
| 51 | * |
| 52 | * 4.2 was May 1 1981 |
| 53 | * Clean up handling of printcap database, add more defaults |
| 54 | */ |
| 55 | |
| 56 | char lpr_id[] = "~|^`lpr.c:\t4.2\t1 May 1981\n"; |
| 57 | |
| 58 | /* lpr.c 4.9 83/03/01 */ |
| 59 | /* |
| 60 | * lpr -- off line print |
| 61 | * |
| 62 | * Allows multiple printers and printers on remote machines by |
| 63 | * using information from a printer data base. |
| 64 | */ |
| 65 | |
| 66 | #include <sys/types.h> |
| 67 | #include <sys/stat.h> |
| 68 | #include <sys/file.h> |
| 69 | #include <signal.h> |
| 70 | #include <pwd.h> |
| 71 | #include <stdio.h> |
| 72 | #include <ctype.h> |
| 73 | #include "lp.local.h" |
| 74 | |
| 75 | char *tfname; /* tmp copy of cf before linking */ |
| 76 | char *cfname; /* daemon control files, linked from tf's */ |
| 77 | char *dfname; /* data files */ |
| 78 | |
| 79 | int nact; /* number of jobs to act on */ |
| 80 | int tfd; /* control file descriptor */ |
| 81 | int mailflg; /* send mail */ |
| 82 | int qflag; /* q job, but don't exec daemon */ |
| 83 | char format = 'f'; /* format char for printing files */ |
| 84 | int rflag; /* remove files upon completion */ |
| 85 | int lflag; /* link flag */ |
| 86 | char *person; /* user name */ |
| 87 | int inchar; /* location to increment char in file names */ |
| 88 | int ncopies = 1; /* # of copies to make */ |
| 89 | int iflag; /* indentation wanted */ |
| 90 | int indent; /* amount to indent */ |
| 91 | char *DN; /* path name to daemon program */ |
| 92 | char *LP; /* line printer device name */ |
| 93 | char *RM; /* remote machine name if no local printer */ |
| 94 | char *SD; /* spool directory */ |
| 95 | int MX; /* maximum size in blocks of a print file */ |
| 96 | int hdr = 1; /* print header or not (default is yes) */ |
| 97 | int userid; /* user id */ |
| 98 | char *title; /* pr'ing title */ |
| 99 | char *fonts[4]; /* troff font names */ |
| 100 | char *width; /* width for versatec printing */ |
| 101 | char host[32]; /* host name */ |
| 102 | char *class = host; /* class title on header page */ |
| 103 | char *jobname; /* job name on header page */ |
| 104 | char *name; /* program name */ |
| 105 | |
| 106 | char *pgetstr(); |
| 107 | char *malloc(); |
| 108 | char *getenv(); |
| 109 | char *rindex(); |
| 110 | |
| 111 | /*ARGSUSED*/ |
| 112 | main(argc, argv) |
| 113 | int argc; |
| 114 | char *argv[]; |
| 115 | { |
| 116 | extern char *getlogin(); |
| 117 | extern struct passwd *getpwuid(), *getpwnam(); |
| 118 | struct passwd *pw; |
| 119 | extern char *itoa(); |
| 120 | register char *arg; |
| 121 | int i, f, out(); |
| 122 | char *printer = NULL; |
| 123 | struct stat stb; |
| 124 | |
| 125 | /* |
| 126 | * Strategy to maintain protected spooling area: |
| 127 | * 1. Spooling area is writable only by daemon and spooling group |
| 128 | * 2. lpr runs setuid root and setgrp spooling group; it uses |
| 129 | * root to access any file it wants (verifying things before |
| 130 | * with an access call) and group id to know how it should |
| 131 | * set up ownership of files in spooling area. |
| 132 | * 3. Files in spooling area are owned by daemon and spooling |
| 133 | * group, with mode 660. |
| 134 | * 4. lpd runs setuid root and setgrp spooling group to |
| 135 | * access files and printer. Users can't get to anything |
| 136 | * w/o help of lpq and lprm programs. |
| 137 | */ |
| 138 | if (signal(SIGHUP, SIG_IGN) != SIG_IGN) |
| 139 | signal(SIGHUP, out); |
| 140 | if (signal(SIGINT, SIG_IGN) != SIG_IGN) |
| 141 | signal(SIGINT, out); |
| 142 | if (signal(SIGQUIT, SIG_IGN) != SIG_IGN) |
| 143 | signal(SIGQUIT, out); |
| 144 | if (signal(SIGTERM, SIG_IGN) != SIG_IGN) |
| 145 | signal(SIGTERM, out); |
| 146 | |
| 147 | gethostname(host, sizeof (host)); |
| 148 | name = argv[0]; |
| 149 | |
| 150 | while (argc > 1 && (arg = argv[1])[0] == '-') { |
| 151 | argc--; |
| 152 | argv++; |
| 153 | switch (arg[1]) { |
| 154 | |
| 155 | case 'P': /* specifiy printer name */ |
| 156 | printer = &arg[2]; |
| 157 | break; |
| 158 | |
| 159 | case 'C': /* classification spec */ |
| 160 | hdr++; |
| 161 | if (arg[2]) |
| 162 | class = &arg[2]; |
| 163 | else if (argc > 1) { |
| 164 | argc--; |
| 165 | class = *++argv; |
| 166 | } |
| 167 | break; |
| 168 | |
| 169 | case 'J': /* job name */ |
| 170 | hdr++; |
| 171 | if (arg[2]) |
| 172 | jobname = &arg[2]; |
| 173 | else if (argc > 1) { |
| 174 | argc--; |
| 175 | jobname = *++argv; |
| 176 | } |
| 177 | break; |
| 178 | |
| 179 | case 'T': /* pr's title line */ |
| 180 | if (arg[2]) |
| 181 | title = &arg[2]; |
| 182 | else if (argc > 1) { |
| 183 | argc--; |
| 184 | title = *++argv; |
| 185 | } |
| 186 | break; |
| 187 | |
| 188 | case 'l': /* literal output */ |
| 189 | case 'p': /* print using ``pr'' */ |
| 190 | case 't': /* print troff output */ |
| 191 | case 'c': /* print cifplot output */ |
| 192 | case 'v': /* print vplot output */ |
| 193 | format = arg[1]; |
| 194 | break; |
| 195 | |
| 196 | case '4': /* troff fonts */ |
| 197 | case '3': |
| 198 | case '2': |
| 199 | case '1': |
| 200 | if (argc > 1) { |
| 201 | argc--; |
| 202 | fonts[arg[1] - '1'] = *++argv; |
| 203 | format = 't'; |
| 204 | } |
| 205 | break; |
| 206 | |
| 207 | case 'w': /* versatec page width */ |
| 208 | width = arg+2; |
| 209 | break; |
| 210 | |
| 211 | case 'r': /* remove file when done */ |
| 212 | rflag++; |
| 213 | break; |
| 214 | |
| 215 | case 'm': /* send mail when done */ |
| 216 | mailflg++; |
| 217 | break; |
| 218 | |
| 219 | case 'h': /* toggle want of header page */ |
| 220 | hdr = !hdr; |
| 221 | break; |
| 222 | |
| 223 | case 's': /* try to link files */ |
| 224 | lflag++; |
| 225 | break; |
| 226 | |
| 227 | case 'q': /* just q job */ |
| 228 | qflag++; |
| 229 | break; |
| 230 | |
| 231 | case 'i': /* indent output */ |
| 232 | iflag++; |
| 233 | indent = arg[2] ? atoi(&arg[2]) : 8; |
| 234 | break; |
| 235 | |
| 236 | default: /* n copies ? */ |
| 237 | if (isdigit(arg[1])) |
| 238 | ncopies = atoi(&arg[1]); |
| 239 | } |
| 240 | } |
| 241 | if (printer == NULL && (printer = getenv("PRINTER")) == NULL) |
| 242 | printer = DEFLP; |
| 243 | if (!chkprinter(printer)) { |
| 244 | printf("%s: unknown printer\n", name, printer); |
| 245 | exit(2); |
| 246 | } |
| 247 | /* |
| 248 | * Get the identity of the person doing the lpr and initialize the |
| 249 | * control file. |
| 250 | */ |
| 251 | userid = getuid(); |
| 252 | if ((person = getlogin()) == NULL) { |
| 253 | if ((pw = getpwuid(userid)) == NULL) |
| 254 | person = "Unknown User"; |
| 255 | else |
| 256 | person = pw->pw_name; |
| 257 | } else if ((pw = getpwnam(person)) != NULL) |
| 258 | userid = pw->pw_uid; /* in case of su */ |
| 259 | mktemps(); |
| 260 | tfd = nfile(tfname); |
| 261 | card('H', host); |
| 262 | card('P', person); |
| 263 | if (hdr) { |
| 264 | if (jobname == NULL) { |
| 265 | if (argc == 1) |
| 266 | jobname = &cfname[inchar-2]; |
| 267 | else |
| 268 | jobname = argv[1]; |
| 269 | } |
| 270 | card('J', jobname); |
| 271 | card('C', class); |
| 272 | card('L', person); |
| 273 | } |
| 274 | if (iflag) |
| 275 | card('I', itoa(indent)); |
| 276 | if (mailflg) |
| 277 | card('M', person); |
| 278 | if (format == 't') |
| 279 | for (i = 0; i < 4; i++) |
| 280 | if (fonts[i] != NULL) |
| 281 | card('1'+i, fonts[i]); |
| 282 | else if ((format == 'f' || format == 'l' || format == 'p') && width) |
| 283 | card('W', width); |
| 284 | |
| 285 | if (argc == 1) |
| 286 | copy(0, " "); |
| 287 | else while (--argc) { |
| 288 | if ((i = test(arg = *++argv)) < 0) |
| 289 | continue; /* file unreasonable */ |
| 290 | |
| 291 | if (i && lflag && linked(arg)) { |
| 292 | if (format == 'p') |
| 293 | card('T', title ? title : arg); |
| 294 | for (i = 0; i < ncopies; i++) |
| 295 | card(format, &dfname[inchar-2]); |
| 296 | card('U', &dfname[inchar-2]); |
| 297 | card('N', arg); |
| 298 | dfname[inchar]++; |
| 299 | nact++; |
| 300 | } else { |
| 301 | if ((f = open(arg, 0)) < 0) { |
| 302 | printf("%s: cannot open %s\n", name, arg); |
| 303 | continue; |
| 304 | } |
| 305 | copy(f, arg); |
| 306 | (void) close(f); |
| 307 | } |
| 308 | if (rflag) { |
| 309 | register char *cp; |
| 310 | |
| 311 | if ((cp = rindex(arg, '/')) == NULL) |
| 312 | f = access(".", 2); |
| 313 | else { |
| 314 | *cp = '\0'; |
| 315 | f = access(arg, 2); |
| 316 | *cp = '/'; |
| 317 | } |
| 318 | if (f || unlink(arg)) |
| 319 | printf("%s: cannot remove %s\n", name, arg); |
| 320 | } |
| 321 | } |
| 322 | |
| 323 | if (nact) { |
| 324 | tfname[inchar]--; |
| 325 | if (link(tfname, cfname) < 0) { |
| 326 | printf("%s: cannot rename %s\n", name, cfname); |
| 327 | tfname[inchar]++; |
| 328 | out(); |
| 329 | } |
| 330 | unlink(tfname); |
| 331 | if (qflag) /* just q things up */ |
| 332 | exit(0); |
| 333 | if (*LP && stat(LP, &stb) >= 0 && (stb.st_mode & 0777) == 0) { |
| 334 | printf("jobs queued, but line printer is down.\n"); |
| 335 | exit(0); |
| 336 | } |
| 337 | execl(DN, arg = rindex(DN, "/") ? arg+1 : DN, printer, 0); |
| 338 | printf("jobs queued, but cannot start daemon.\n"); |
| 339 | exit(0); |
| 340 | } |
| 341 | out(); |
| 342 | /*NOTREACHED*/ |
| 343 | } |
| 344 | |
| 345 | /* |
| 346 | * Create the file n and copy from file descriptor f. |
| 347 | */ |
| 348 | copy(f, n) |
| 349 | int f; |
| 350 | char n[]; |
| 351 | { |
| 352 | register int fd, i, nr, nc; |
| 353 | char buf[BUFSIZ]; |
| 354 | |
| 355 | if (format == 'p') |
| 356 | card('T', title ? title : n); |
| 357 | for (i = 0; i < ncopies; i++) |
| 358 | card(format, &dfname[inchar-2]); |
| 359 | card('U', &dfname[inchar-2]); |
| 360 | card('N', n); |
| 361 | fd = nfile(dfname); |
| 362 | nr = nc = 0; |
| 363 | while ((i = read(f, buf, BUFSIZ)) > 0) { |
| 364 | if (write(fd, buf, i) != i) { |
| 365 | printf("%s: %s: temp file write error\n", name, n); |
| 366 | break; |
| 367 | } |
| 368 | nc += i; |
| 369 | if (nc >= BUFSIZ) { |
| 370 | nc -= BUFSIZ; |
| 371 | if (nr++ > MX) { |
| 372 | printf("%s: %s: copy file is too large\n", name, n); |
| 373 | break; |
| 374 | } |
| 375 | } |
| 376 | } |
| 377 | (void) close(fd); |
| 378 | nact++; |
| 379 | } |
| 380 | |
| 381 | /* |
| 382 | * Try and link the file to dfname. Return true if successful. |
| 383 | */ |
| 384 | linked(file) |
| 385 | register char *file; |
| 386 | { |
| 387 | register char *cp; |
| 388 | char buf[BUFSIZ]; |
| 389 | |
| 390 | if (link(file, dfname) == 0) |
| 391 | return(1); |
| 392 | if (*file != '/') { |
| 393 | if (getwd(buf) == NULL) |
| 394 | return(0); |
| 395 | while (file[0] == '.') { |
| 396 | switch (file[1]) { |
| 397 | case '/': |
| 398 | file += 2; |
| 399 | continue; |
| 400 | case '.': |
| 401 | if (file[2] == '/') { |
| 402 | if ((cp = rindex(buf, '/')) != NULL) |
| 403 | *cp = '\0'; |
| 404 | file += 3; |
| 405 | continue; |
| 406 | } |
| 407 | } |
| 408 | break; |
| 409 | } |
| 410 | strcat(buf, "/"); |
| 411 | strcat(buf, file); |
| 412 | file = buf; |
| 413 | } |
| 414 | return(symlink(file, dfname) == 0); |
| 415 | } |
| 416 | |
| 417 | /* |
| 418 | * Put a line into the control file. |
| 419 | */ |
| 420 | card(c, p2) |
| 421 | register char c, *p2; |
| 422 | { |
| 423 | char buf[BUFSIZ]; |
| 424 | register char *p1 = buf; |
| 425 | register int len = 2; |
| 426 | |
| 427 | *p1++ = c; |
| 428 | while ((c = *p2++) != '\0') { |
| 429 | *p1++ = c; |
| 430 | len++; |
| 431 | } |
| 432 | *p1++ = '\n'; |
| 433 | write(tfd, buf, len); |
| 434 | } |
| 435 | |
| 436 | /* |
| 437 | * Create a new file in the spool directory. |
| 438 | */ |
| 439 | |
| 440 | nfile(n) |
| 441 | char *n; |
| 442 | { |
| 443 | register f; |
| 444 | int oldumask = umask(0); /* should block signals */ |
| 445 | |
| 446 | f = creat(n, FILMOD); |
| 447 | (void) umask(oldumask); |
| 448 | if (f < 0) { |
| 449 | printf("%s: cannot create %s\n", name, n); |
| 450 | out(); |
| 451 | } |
| 452 | if (chown(n, userid, -1) < 0) { |
| 453 | unlink(n); |
| 454 | printf("%s: cannot chown %s\n", name, n); |
| 455 | out(); |
| 456 | } |
| 457 | n[inchar]++; |
| 458 | return(f); |
| 459 | } |
| 460 | |
| 461 | /* |
| 462 | * Cleanup after interrupts and errors. |
| 463 | */ |
| 464 | out() |
| 465 | { |
| 466 | register i; |
| 467 | |
| 468 | signal(SIGHUP, SIG_IGN); |
| 469 | signal(SIGINT, SIG_IGN); |
| 470 | signal(SIGQUIT, SIG_IGN); |
| 471 | signal(SIGTERM, SIG_IGN); |
| 472 | i = inchar; |
| 473 | if (tfname) |
| 474 | while (tfname[i] != 'A') { |
| 475 | tfname[i]--; |
| 476 | unlink(tfname); |
| 477 | } |
| 478 | if (cfname) |
| 479 | while (cfname[i] != 'A') { |
| 480 | cfname[i]--; |
| 481 | unlink(cfname); |
| 482 | } |
| 483 | if (dfname) |
| 484 | while (dfname[i] != 'A') { |
| 485 | dfname[i]--; |
| 486 | unlink(dfname); |
| 487 | } |
| 488 | exit(); |
| 489 | } |
| 490 | |
| 491 | /* |
| 492 | * Test to see if this is a printable file. |
| 493 | * Return -1 if it is not, 1 if it's publically readable, else 0 |
| 494 | */ |
| 495 | test(file) |
| 496 | char *file; |
| 497 | { |
| 498 | struct exec execb; |
| 499 | struct stat statb; |
| 500 | int fd; |
| 501 | |
| 502 | if (access(file, 4) < 0) { |
| 503 | printf("%s: cannot access %s\n", name, file); |
| 504 | return(-1); |
| 505 | } |
| 506 | if (stat(file, &statb) < 0) { |
| 507 | printf("%s: cannot stat %s\n", name, file); |
| 508 | return(-1); |
| 509 | } |
| 510 | if ((statb.st_mode & S_IFMT) == S_IFDIR) { |
| 511 | printf("%s: %s is a directory\n", name, file); |
| 512 | return(-1); |
| 513 | } |
| 514 | if ((fd = open(file, 0)) < 0) { |
| 515 | printf("%s: cannot open %s\n", name, file); |
| 516 | return(-1); |
| 517 | } |
| 518 | if (read(fd, &execb, sizeof(execb)) == sizeof(execb)) |
| 519 | switch(execb.a_magic) { |
| 520 | case A_MAGIC1: |
| 521 | case A_MAGIC2: |
| 522 | case A_MAGIC3: |
| 523 | #ifdef A_MAGIC4 |
| 524 | case A_MAGIC4: |
| 525 | #endif |
| 526 | printf("%s: %s is an executable program", name, file); |
| 527 | goto error1; |
| 528 | |
| 529 | case ARMAG: |
| 530 | printf("%s: %s is an archive file", name, file); |
| 531 | goto error1; |
| 532 | } |
| 533 | (void) close(fd); |
| 534 | if (rflag) { /* check to make sure user can delete this file */ |
| 535 | register char *cp = rindex(file, '/'); |
| 536 | |
| 537 | if (cp == NULL) |
| 538 | fd = access(".", 2); |
| 539 | else { |
| 540 | *cp = '\0'; |
| 541 | fd = access(file, 2); |
| 542 | *cp = '/'; |
| 543 | } |
| 544 | if (fd < 0) { |
| 545 | printf("%s: cannot remove %s\n", name, file); |
| 546 | return(-1); |
| 547 | } |
| 548 | } |
| 549 | if (statb.st_mode & 04) |
| 550 | return(1); |
| 551 | return(0); |
| 552 | |
| 553 | error1: |
| 554 | printf(" and is unprintable\n"); |
| 555 | (void) close(fd); |
| 556 | return(-1); |
| 557 | } |
| 558 | |
| 559 | /* |
| 560 | * itoa - integer to string conversion |
| 561 | */ |
| 562 | char * |
| 563 | itoa(i) |
| 564 | register int i; |
| 565 | { |
| 566 | static char b[10] = "########"; |
| 567 | register char *p; |
| 568 | |
| 569 | p = &b[8]; |
| 570 | do |
| 571 | *p-- = i%10 + '0'; |
| 572 | while (i /= 10); |
| 573 | return(++p); |
| 574 | } |
| 575 | |
| 576 | /* |
| 577 | * Perform lookup for printer name or abbreviation -- |
| 578 | */ |
| 579 | chkprinter(s) |
| 580 | register char *s; |
| 581 | { |
| 582 | static char buf[BUFSIZ/2]; |
| 583 | char b[BUFSIZ]; |
| 584 | int stat; |
| 585 | char *bp = buf; |
| 586 | |
| 587 | if ((stat = pgetent(b, s)) < 0) { |
| 588 | printf("%s: can't open printer description file\n", name); |
| 589 | exit(3); |
| 590 | } else if (stat == 0) |
| 591 | return(0); |
| 592 | if ((DN = pgetstr("dn", &bp)) == NULL) |
| 593 | DN = DEFDAEMON; |
| 594 | if ((LP = pgetstr("lp", &bp)) == NULL) |
| 595 | LP = DEFDEVLP; |
| 596 | if ((SD = pgetstr("sd", &bp)) == NULL) |
| 597 | SD = DEFSPOOL; |
| 598 | if ((MX = pgetnum("mx")) < 0) |
| 599 | MX = DEFMX; |
| 600 | RM = pgetstr("rm", &bp); |
| 601 | return(1); |
| 602 | } |
| 603 | |
| 604 | /* |
| 605 | * Make the temp files. |
| 606 | */ |
| 607 | mktemps() |
| 608 | { |
| 609 | register int c, len; |
| 610 | int n; |
| 611 | char buf[BUFSIZ], *mktemp(); |
| 612 | FILE *fp; |
| 613 | |
| 614 | (void) sprintf(buf, "%s/.seq", SD); |
| 615 | if ((fp = fopen(buf, "r+")) == NULL) { |
| 616 | if ((fp = fopen(buf, "w")) == NULL) { |
| 617 | printf("%s: cannot create %s\n", name, buf); |
| 618 | exit(1); |
| 619 | } |
| 620 | setbuf(fp, buf); |
| 621 | n = 0; |
| 622 | } else { |
| 623 | setbuf(fp, buf); |
| 624 | #ifdef BSD41C |
| 625 | if (flock(fileno(fp), FEXLOCK)) { |
| 626 | printf("%s: cannot lock %s\n", name, buf); |
| 627 | exit(1); |
| 628 | } |
| 629 | #endif |
| 630 | n = 0; |
| 631 | while ((c = getc(fp)) >= '0' && c <= '9') |
| 632 | n = n * 10 + (c - '0'); |
| 633 | } |
| 634 | len = strlen(SD) + strlen(host) + 8; |
| 635 | tfname = mktemp("tf", n, len); |
| 636 | cfname = mktemp("cf", n, len); |
| 637 | dfname = mktemp("df", n, len); |
| 638 | inchar = strlen(SD) + 3; |
| 639 | n = (n + 1) % 1000; |
| 640 | (void) fseek(fp, 0L, 0); |
| 641 | fprintf(fp, "%d\n", n); |
| 642 | (void) fclose(fp); |
| 643 | } |
| 644 | |
| 645 | /* |
| 646 | * Make a temp file name. |
| 647 | */ |
| 648 | char * |
| 649 | mktemp(id, num, len) |
| 650 | char *id; |
| 651 | int num, len; |
| 652 | { |
| 653 | register char *s; |
| 654 | |
| 655 | if ((s = malloc(len)) == NULL) { |
| 656 | printf("%s: out of memory\n", name); |
| 657 | exit(1); |
| 658 | } |
| 659 | (void) sprintf(s, "%s/%sA%03d%s", SD, id, num, host); |
| 660 | return(s); |
| 661 | } |