| 1 | /* |
| 2 | * Copyright (c) 1980 Regents of the University of California. |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
| 8 | * 1. Redistributions of source code must retain the above copyright |
| 9 | * notice, this list of conditions and the following disclaimer. |
| 10 | * 2. Redistributions in binary form must reproduce the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer in the |
| 12 | * documentation and/or other materials provided with the distribution. |
| 13 | * 3. All advertising materials mentioning features or use of this software |
| 14 | * must display the following acknowledgement: |
| 15 | * This product includes software developed by the University of |
| 16 | * California, Berkeley and its contributors. |
| 17 | * 4. Neither the name of the University 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 REGENTS 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 REGENTS 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 | #ifndef lint |
| 35 | char copyright[] = |
| 36 | "@(#) Copyright (c) 1980 Regents of the University of California.\n\ |
| 37 | All rights reserved.\n"; |
| 38 | #endif /* not lint */ |
| 39 | |
| 40 | #ifndef lint |
| 41 | static char sccsid[] = "@(#)sysline.c 5.18 (Berkeley) 3/4/91"; |
| 42 | #endif /* not lint */ |
| 43 | |
| 44 | /* |
| 45 | * sysline - system status display on 25th line of terminal |
| 46 | * j.k.foderaro |
| 47 | * |
| 48 | * Prints a variety of information on the special status line of terminals |
| 49 | * that have a status display capability. Cursor motions, status commands, |
| 50 | * etc. are gleamed from /etc/termcap. |
| 51 | * By default, all information is printed, and flags are given on the command |
| 52 | * line to disable the printing of information. The information and |
| 53 | * disabling flags are: |
| 54 | * |
| 55 | * flag what |
| 56 | * ----- ---- |
| 57 | * time of day |
| 58 | * load average and change in load average in the last 5 mins |
| 59 | * number of user logged on |
| 60 | * -p # of processes the users owns which are runnable and the |
| 61 | * number which are suspended. Processes whose parent is 1 |
| 62 | * are not counted. |
| 63 | * -l users who've logged on and off. |
| 64 | * -m summarize new mail which has arrived |
| 65 | * |
| 66 | * <other flags> |
| 67 | * -r use non reverse video |
| 68 | * -c turn off 25th line for 5 seconds before redisplaying. |
| 69 | * -b beep once one the half hour, twice on the hour |
| 70 | * +N refresh display every N seconds. |
| 71 | * -i print pid first thing |
| 72 | * -e do simple print designed for an emacs buffer line |
| 73 | * -w do the right things for a window |
| 74 | * -h print hostname between time and load average |
| 75 | * -D print day/date before time of day |
| 76 | * -d debug mode - print status line data in human readable format |
| 77 | * -q quiet mode - don't output diagnostic messages |
| 78 | * -s print Short (left-justified) line if escapes not allowed |
| 79 | * -j Print left Justified line regardless |
| 80 | */ |
| 81 | |
| 82 | #define BSD4_2 /* for 4.2 BSD */ |
| 83 | #define WHO /* turn this on always */ |
| 84 | #define RWHO /* 4.1a or greater, with rwho */ |
| 85 | #define NEW_BOOTTIME /* 4.1c or greater */ |
| 86 | |
| 87 | #define NETPREFIX "ucb" |
| 88 | #define DEFDELAY 60 /* update status once per minute */ |
| 89 | /* |
| 90 | * if MAXLOAD is defined, then if the load average exceeded MAXLOAD |
| 91 | * then the process table will not be scanned and the log in/out data |
| 92 | * will not be checked. The purpose of this is to reduced the load |
| 93 | * on the system when it is loaded. |
| 94 | */ |
| 95 | #define MAXLOAD 6.0 |
| 96 | |
| 97 | #include <sys/param.h> |
| 98 | #include <sys/time.h> |
| 99 | #include <sys/stat.h> |
| 100 | #include <sys/vtimes.h> |
| 101 | #include <sys/proc.h> |
| 102 | #include <sys/ioctl.h> |
| 103 | #include <signal.h> |
| 104 | #include <fcntl.h> |
| 105 | #include <utmp.h> |
| 106 | #include <nlist.h> |
| 107 | #include <curses.h> |
| 108 | #undef nl |
| 109 | #ifdef TERMINFO |
| 110 | #include <term.h> |
| 111 | #endif |
| 112 | #include <stdarg.h> |
| 113 | #include <unistd.h> |
| 114 | #include <stdlib.h> |
| 115 | #include <string.h> |
| 116 | #include <stdio.h> |
| 117 | #include <ctype.h> |
| 118 | |
| 119 | #ifdef RWHO |
| 120 | #include <protocols/rwhod.h> |
| 121 | |
| 122 | #define DOWN_THRESHOLD (11 * 60) |
| 123 | |
| 124 | struct remotehost { |
| 125 | char *rh_host; |
| 126 | int rh_file; |
| 127 | } remotehost[10]; |
| 128 | int nremotes = 0; |
| 129 | #endif RWHO |
| 130 | |
| 131 | #include "pathnames.h" |
| 132 | |
| 133 | struct nlist nl[] = { |
| 134 | { "_boottime" }, |
| 135 | #define NL_BOOT 0 |
| 136 | { "_proc" }, |
| 137 | #define NL_PROC 1 |
| 138 | { "_nproc" }, |
| 139 | #define NL_NPROC 2 |
| 140 | 0 |
| 141 | }; |
| 142 | |
| 143 | /* stuff for the kernel */ |
| 144 | int kmem; /* file descriptor for _PATH_KMEM */ |
| 145 | struct proc *proc, *procNPROC; |
| 146 | int nproc; |
| 147 | int procadr; |
| 148 | double avenrun[3]; /* used for storing load averages */ |
| 149 | |
| 150 | /* |
| 151 | * In order to determine how many people are logged on and who has |
| 152 | * logged in or out, we read in the /etc/utmp file. We also keep track of |
| 153 | * the previous utmp file. |
| 154 | */ |
| 155 | int ut = -1; /* the file descriptor */ |
| 156 | struct utmp *new, *old; |
| 157 | char *status; /* per tty status bits, see below */ |
| 158 | int nentries; /* number of utmp entries */ |
| 159 | /* string lengths for printing */ |
| 160 | #define LINESIZE (sizeof old->ut_line) |
| 161 | #define NAMESIZE (sizeof old->ut_name) |
| 162 | /* |
| 163 | * Status codes to say what has happened to a particular entry in utmp. |
| 164 | * NOCH means no change, ON means new person logged on, |
| 165 | * OFF means person logged off. |
| 166 | */ |
| 167 | #define NOCH 0 |
| 168 | #define ON 0x1 |
| 169 | #define OFF 0x2 |
| 170 | |
| 171 | #ifdef WHO |
| 172 | char whofilename[100]; |
| 173 | char whofilename2[100]; |
| 174 | #endif |
| 175 | |
| 176 | char hostname[MAXHOSTNAMELEN+1]; /* one more for null termination */ |
| 177 | char lockfilename[100]; /* if exists, will prevent us from running */ |
| 178 | |
| 179 | /* flags which determine which info is printed */ |
| 180 | int mailcheck = 1; /* m - do biff like checking of mail */ |
| 181 | int proccheck = 1; /* p - give information on processes */ |
| 182 | int logcheck = 1; /* l - tell who logs in and out */ |
| 183 | int hostprint = 0; /* h - print out hostname */ |
| 184 | int dateprint = 0; /* h - print out day/date */ |
| 185 | int quiet = 0; /* q - hush diagnostic messages */ |
| 186 | |
| 187 | /* flags which determine how things are printed */ |
| 188 | int clr_bet_ref = 0; /* c - clear line between refeshes */ |
| 189 | int reverse = 1; /* r - use reverse video */ |
| 190 | int shortline = 0; /* s - short (left-justified) if escapes not allowed */ |
| 191 | int leftline = 0; /* j - left-justified even if escapes allowed */ |
| 192 | |
| 193 | /* flags which have terminal do random things */ |
| 194 | int beep = 0; /* b - beep every half hour and twice every hour */ |
| 195 | int printid = 0; /* i - print pid of this process at startup */ |
| 196 | int synch = 1; /* synchronize with clock */ |
| 197 | |
| 198 | /* select output device (status display or straight output) */ |
| 199 | int emacs = 0; /* e - assume status display */ |
| 200 | int window = 0; /* w - window mode */ |
| 201 | int dbug = 0; /* d - debug */ |
| 202 | |
| 203 | /* |
| 204 | * used to turn off reverse video every REVOFF times |
| 205 | * in an attempt to not wear out the phospher. |
| 206 | */ |
| 207 | #define REVOFF 5 |
| 208 | int revtime = 1; |
| 209 | |
| 210 | /* used by mail checker */ |
| 211 | off_t mailsize = 0; |
| 212 | off_t linebeg = 0; /* place where we last left off reading */ |
| 213 | |
| 214 | /* things used by the string routines */ |
| 215 | int chars; /* number of printable characters */ |
| 216 | char *sp; |
| 217 | char strarr[512]; /* big enough now? */ |
| 218 | /* flags to stringdump() */ |
| 219 | char sawmail; /* remember mail was seen to print bells */ |
| 220 | char mustclear; /* status line messed up */ |
| 221 | |
| 222 | /* strings which control status line display */ |
| 223 | #ifdef TERMINFO |
| 224 | char *rev_out, *rev_end, *arrows; |
| 225 | char *tparm(); |
| 226 | #else |
| 227 | char to_status_line[64]; |
| 228 | char from_status_line[64]; |
| 229 | char dis_status_line[64]; |
| 230 | char clr_eol[64]; |
| 231 | char rev_out[20], rev_end[20]; |
| 232 | char *arrows, *bell = "\007"; |
| 233 | int eslok; /* escapes on status line okay (reverse, cursor addressing) */ |
| 234 | int hasws = 0; /* is "ws" explicitly defined? */ |
| 235 | int columns; |
| 236 | #define tparm(cap, parm) tgoto((cap), 0, (parm)) |
| 237 | char *tgoto(); |
| 238 | #endif |
| 239 | |
| 240 | /* to deal with window size changes */ |
| 241 | #ifdef SIGWINCH |
| 242 | void sigwinch(); |
| 243 | char winchanged; /* window size has changed since last update */ |
| 244 | #endif |
| 245 | |
| 246 | /* random globals */ |
| 247 | char *username; |
| 248 | char *ourtty; /* keep track of what tty we're on */ |
| 249 | struct stat stbuf, mstbuf; /* mstbuf for mail check only */ |
| 250 | unsigned delay = DEFDELAY; |
| 251 | uid_t uid; |
| 252 | double loadavg = 0.0; /* current load average */ |
| 253 | int users = 0; |
| 254 | |
| 255 | char *strcpy1(); |
| 256 | char *sysrup(); |
| 257 | int outc(); |
| 258 | int erroutc(); |
| 259 | |
| 260 | main(argc, argv) |
| 261 | int argc; |
| 262 | register char **argv; |
| 263 | { |
| 264 | register char *cp; |
| 265 | char *home; |
| 266 | void clearbotl(); |
| 267 | |
| 268 | gethostname(hostname, sizeof hostname - 1); |
| 269 | if ((cp = index(hostname, '.')) != NULL) |
| 270 | *cp = '\0'; |
| 271 | (void)setvbuf(stdout, (char *)NULL, _IOFBF, 0); |
| 272 | |
| 273 | for (argv++; *argv != 0; argv++) |
| 274 | switch (**argv) { |
| 275 | case '-': |
| 276 | for (cp = *argv + 1; *cp; cp++) { |
| 277 | switch(*cp) { |
| 278 | case 'r' : /* turn off reverse video */ |
| 279 | reverse = 0; |
| 280 | break; |
| 281 | case 'c': |
| 282 | clr_bet_ref = 1; |
| 283 | break; |
| 284 | case 'h': |
| 285 | hostprint = 1; |
| 286 | break; |
| 287 | case 'D': |
| 288 | dateprint = 1; |
| 289 | break; |
| 290 | #ifdef RWHO |
| 291 | case 'H': |
| 292 | if (argv[1] == 0) |
| 293 | break; |
| 294 | argv++; |
| 295 | if (strcmp(hostname, *argv) && |
| 296 | strcmp(&hostname[sizeof NETPREFIX - 1], *argv)) |
| 297 | remotehost[nremotes++].rh_host = *argv; |
| 298 | break; |
| 299 | #endif RWHO |
| 300 | case 'm': |
| 301 | mailcheck = 0; |
| 302 | break; |
| 303 | case 'p': |
| 304 | proccheck = 0; |
| 305 | break; |
| 306 | case 'l': |
| 307 | logcheck = 0; |
| 308 | break; |
| 309 | case 'b': |
| 310 | beep = 1; |
| 311 | break; |
| 312 | case 'i': |
| 313 | printid = 1; |
| 314 | break; |
| 315 | case 'w': |
| 316 | window = 1; |
| 317 | break; |
| 318 | case 'e': |
| 319 | emacs = 1; |
| 320 | break; |
| 321 | case 'd': |
| 322 | dbug = 1; |
| 323 | break; |
| 324 | case 'q': |
| 325 | quiet = 1; |
| 326 | break; |
| 327 | case 's': |
| 328 | shortline = 1; |
| 329 | break; |
| 330 | case 'j': |
| 331 | leftline = 1; |
| 332 | break; |
| 333 | default: |
| 334 | fprintf(stderr, |
| 335 | "sysline: bad flag: %c\n", *cp); |
| 336 | } |
| 337 | } |
| 338 | break; |
| 339 | case '+': |
| 340 | delay = atoi(*argv + 1); |
| 341 | if (delay < 10) |
| 342 | delay = 10; |
| 343 | else if (delay > 500) |
| 344 | delay = 500; |
| 345 | synch = 0; /* no more sync */ |
| 346 | break; |
| 347 | default: |
| 348 | fprintf(stderr, "sysline: illegal argument %s\n", |
| 349 | argv[0]); |
| 350 | } |
| 351 | if (emacs) { |
| 352 | reverse = 0; |
| 353 | columns = 79; |
| 354 | } else /* if not to emacs window, initialize terminal dependent info */ |
| 355 | initterm(); |
| 356 | #ifdef SIGWINCH |
| 357 | /* |
| 358 | * When the window size changes and we are the foreground |
| 359 | * process (true if -w), we get this signal. |
| 360 | */ |
| 361 | signal(SIGWINCH, sigwinch); |
| 362 | #endif |
| 363 | getwinsize(); /* get window size from ioctl */ |
| 364 | |
| 365 | /* immediately fork and let the parent die if not emacs mode */ |
| 366 | if (!emacs && !window && !dbug) { |
| 367 | if (fork()) |
| 368 | exit(0); |
| 369 | /* pgrp should take care of things, but ignore them anyway */ |
| 370 | signal(SIGINT, SIG_IGN); |
| 371 | signal(SIGQUIT, SIG_IGN); |
| 372 | signal(SIGTTOU, SIG_IGN); |
| 373 | } |
| 374 | /* |
| 375 | * When we logoff, init will do a "vhangup()" on this |
| 376 | * tty which turns off I/O access and sends a SIGHUP |
| 377 | * signal. We catch this and thereby clear the status |
| 378 | * display. Note that a bug in 4.1bsd caused the SIGHUP |
| 379 | * signal to be sent to the wrong process, so you had to |
| 380 | * `kill -HUP' yourself in your .logout file. |
| 381 | * Do the same thing for SIGTERM, which is the default kill |
| 382 | * signal. |
| 383 | */ |
| 384 | signal(SIGHUP, clearbotl); |
| 385 | signal(SIGTERM, clearbotl); |
| 386 | /* |
| 387 | * This is so kill -ALRM to force update won't screw us up.. |
| 388 | */ |
| 389 | signal(SIGALRM, SIG_IGN); |
| 390 | |
| 391 | uid = getuid(); |
| 392 | ourtty = ttyname(2); /* remember what tty we are on */ |
| 393 | if (printid) { |
| 394 | printf("%d\n", getpid()); |
| 395 | fflush(stdout); |
| 396 | } |
| 397 | dup2(2, 1); |
| 398 | |
| 399 | if ((home = getenv("HOME")) == 0) |
| 400 | home = ""; |
| 401 | strcpy1(strcpy1(whofilename, home), "/.who"); |
| 402 | strcpy1(strcpy1(whofilename2, home), "/.sysline"); |
| 403 | strcpy1(strcpy1(lockfilename, home), "/.syslinelock"); |
| 404 | |
| 405 | if ((kmem = open(_PATH_KMEM,0)) < 0) { |
| 406 | fprintf(stderr, "Can't open %s\n", _PATH_KMEM); |
| 407 | exit(1); |
| 408 | } |
| 409 | readnamelist(); |
| 410 | if (proccheck) |
| 411 | initprocread(); |
| 412 | if (mailcheck) |
| 413 | if ((username = getenv("USER")) == 0) |
| 414 | mailcheck = 0; |
| 415 | else { |
| 416 | chdir(_PATH_MAILDIR); |
| 417 | if (stat(username, &mstbuf) >= 0) |
| 418 | mailsize = mstbuf.st_size; |
| 419 | else |
| 420 | mailsize = 0; |
| 421 | } |
| 422 | |
| 423 | while (emacs || window || isloggedin()) |
| 424 | if (access(lockfilename, 0) >= 0) |
| 425 | sleep(60); |
| 426 | else { |
| 427 | prtinfo(); |
| 428 | sleep(delay); |
| 429 | if (clr_bet_ref) { |
| 430 | tputs(dis_status_line, 1, outc); |
| 431 | fflush(stdout); |
| 432 | sleep(5); |
| 433 | } |
| 434 | revtime = (1 + revtime) % REVOFF; |
| 435 | } |
| 436 | clearbotl(); |
| 437 | /*NOTREACHED*/ |
| 438 | } |
| 439 | |
| 440 | isloggedin() |
| 441 | { |
| 442 | /* |
| 443 | * you can tell if a person has logged out if the owner of |
| 444 | * the tty has changed |
| 445 | */ |
| 446 | struct stat statbuf; |
| 447 | |
| 448 | return fstat(2, &statbuf) == 0 && statbuf.st_uid == uid; |
| 449 | } |
| 450 | |
| 451 | readnamelist() |
| 452 | { |
| 453 | time_t bootime, clock, nintv, time(); |
| 454 | |
| 455 | nlist(_PATH_UNIX, nl); |
| 456 | if (nl[0].n_value == 0) { |
| 457 | if (!quiet) |
| 458 | fprintf(stderr, "No namelist\n"); |
| 459 | return; |
| 460 | } |
| 461 | lseek(kmem, (long)nl[NL_BOOT].n_value, 0); |
| 462 | read(kmem, &bootime, sizeof(bootime)); |
| 463 | (void) time(&clock); |
| 464 | nintv = clock - bootime; |
| 465 | if (nintv <= 0L || nintv > 60L*60L*24L*365L) { |
| 466 | if (!quiet) |
| 467 | fprintf(stderr, |
| 468 | "Time makes no sense... namelist must be wrong\n"); |
| 469 | nl[NL_PROC].n_value = 0; |
| 470 | } |
| 471 | } |
| 472 | |
| 473 | readutmp(nflag) |
| 474 | char nflag; |
| 475 | { |
| 476 | static time_t lastmod; /* initially zero */ |
| 477 | static off_t utmpsize; /* ditto */ |
| 478 | struct stat st; |
| 479 | |
| 480 | if (ut < 0 && (ut = open(_PATH_UTMP, 0)) < 0) { |
| 481 | fprintf(stderr, "sysline: Can't open %s.\n", _PATH_UTMP); |
| 482 | exit(1); |
| 483 | } |
| 484 | if (fstat(ut, &st) < 0 || st.st_mtime == lastmod) |
| 485 | return 0; |
| 486 | lastmod = st.st_mtime; |
| 487 | if (utmpsize != st.st_size) { |
| 488 | utmpsize = st.st_size; |
| 489 | nentries = utmpsize / sizeof (struct utmp); |
| 490 | if (old == 0) { |
| 491 | old = (struct utmp *)calloc(utmpsize, 1); |
| 492 | new = (struct utmp *)calloc(utmpsize, 1); |
| 493 | } else { |
| 494 | old = (struct utmp *)realloc((char *)old, utmpsize); |
| 495 | new = (struct utmp *)realloc((char *)new, utmpsize); |
| 496 | free(status); |
| 497 | } |
| 498 | status = malloc(nentries * sizeof *status); |
| 499 | if (old == 0 || new == 0 || status == 0) { |
| 500 | fprintf(stderr, "sysline: Out of memory.\n"); |
| 501 | exit(1); |
| 502 | } |
| 503 | } |
| 504 | lseek(ut, 0L, 0); |
| 505 | (void) read(ut, (char *) (nflag ? new : old), utmpsize); |
| 506 | return 1; |
| 507 | } |
| 508 | |
| 509 | /* |
| 510 | * read in the process table locations and sizes, and allocate space |
| 511 | * for storing the process table. This is done only once. |
| 512 | */ |
| 513 | initprocread() |
| 514 | { |
| 515 | |
| 516 | if (nl[NL_PROC].n_value == 0) |
| 517 | return; |
| 518 | lseek(kmem, (long)nl[NL_PROC].n_value, 0); |
| 519 | read(kmem, &procadr, sizeof procadr); |
| 520 | lseek(kmem, (long)nl[NL_NPROC].n_value, 0); |
| 521 | read(kmem, &nproc, sizeof nproc); |
| 522 | if ((proc = (struct proc *) calloc(nproc, sizeof (struct proc))) == 0) { |
| 523 | fprintf(stderr, "Out of memory.\n"); |
| 524 | exit(1); |
| 525 | } |
| 526 | procNPROC = proc + nproc; |
| 527 | } |
| 528 | |
| 529 | /* |
| 530 | * read in the process table. This assumes that initprocread has alread been |
| 531 | * called to set up storage. |
| 532 | */ |
| 533 | readproctab() |
| 534 | { |
| 535 | |
| 536 | if (nl[NL_PROC].n_value == 0) |
| 537 | return (0); |
| 538 | lseek(kmem, (long)procadr, 0); |
| 539 | read(kmem, (char *)proc, nproc * sizeof (struct proc)); |
| 540 | return (1); |
| 541 | } |
| 542 | |
| 543 | prtinfo() |
| 544 | { |
| 545 | int on, off; |
| 546 | register i; |
| 547 | char fullprocess; |
| 548 | |
| 549 | stringinit(); |
| 550 | #ifdef SIGWINCH |
| 551 | if (winchanged) { |
| 552 | winchanged = 0; |
| 553 | getwinsize(); |
| 554 | mustclear = 1; |
| 555 | } |
| 556 | #endif |
| 557 | #ifdef WHO |
| 558 | /* check for file named .who in the home directory */ |
| 559 | whocheck(); |
| 560 | #endif |
| 561 | timeprint(); |
| 562 | /* |
| 563 | * if mail is seen, don't print rest of info, just the mail |
| 564 | * reverse new and old so that next time we run, we won't lose log |
| 565 | * in and out information |
| 566 | */ |
| 567 | if (mailcheck && (sawmail = mailseen())) |
| 568 | goto bottom; |
| 569 | #ifdef RWHO |
| 570 | for (i = 0; i < nremotes; i++) { |
| 571 | char *tmp; |
| 572 | |
| 573 | stringspace(); |
| 574 | tmp = sysrup(remotehost + i); |
| 575 | stringcat(tmp, strlen(tmp)); |
| 576 | } |
| 577 | #endif |
| 578 | /* |
| 579 | * print hostname info if requested |
| 580 | */ |
| 581 | if (hostprint) { |
| 582 | stringspace(); |
| 583 | stringcat(hostname, -1); |
| 584 | } |
| 585 | /* |
| 586 | * print load average and difference between current load average |
| 587 | * and the load average 5 minutes ago |
| 588 | */ |
| 589 | if (getloadavg(avenrun, 3) > 0) { |
| 590 | double diff; |
| 591 | |
| 592 | stringspace(); |
| 593 | |
| 594 | if ((diff = avenrun[0] - avenrun[1]) < 0.0) |
| 595 | stringprt("%.1f %.1f", avenrun[0], diff); |
| 596 | else |
| 597 | stringprt("%.1f +%.1f", avenrun[0], diff); |
| 598 | loadavg = avenrun[0]; /* remember load average */ |
| 599 | } |
| 600 | /* |
| 601 | * print log on and off information |
| 602 | */ |
| 603 | stringspace(); |
| 604 | fullprocess = 1; |
| 605 | #ifdef MAXLOAD |
| 606 | if (loadavg > MAXLOAD) |
| 607 | fullprocess = 0; /* too loaded to run */ |
| 608 | #endif |
| 609 | /* |
| 610 | * Read utmp file (logged in data) only if we are doing a full |
| 611 | * process, or if this is the first time and we are calculating |
| 612 | * the number of users. |
| 613 | */ |
| 614 | on = off = 0; |
| 615 | if (users == 0) { /* first time */ |
| 616 | if (readutmp(0)) |
| 617 | for (i = 0; i < nentries; i++) |
| 618 | if (old[i].ut_name[0]) |
| 619 | users++; |
| 620 | } else if (fullprocess && readutmp(1)) { |
| 621 | struct utmp *tmp; |
| 622 | |
| 623 | users = 0; |
| 624 | for (i = 0; i < nentries; i++) { |
| 625 | if (strncmp(old[i].ut_name, |
| 626 | new[i].ut_name, NAMESIZE) == 0) |
| 627 | status[i] = NOCH; |
| 628 | else if (old[i].ut_name[0] == '\0') { |
| 629 | status[i] = ON; |
| 630 | on++; |
| 631 | } else if (new[i].ut_name[0] == '\0') { |
| 632 | status[i] = OFF; |
| 633 | off++; |
| 634 | } else { |
| 635 | status[i] = ON | OFF; |
| 636 | on++; |
| 637 | off++; |
| 638 | } |
| 639 | if (new[i].ut_name[0]) |
| 640 | users++; |
| 641 | } |
| 642 | tmp = new; |
| 643 | new = old; |
| 644 | old = tmp; |
| 645 | } |
| 646 | /* |
| 647 | * Print: |
| 648 | * 1. number of users |
| 649 | * 2. a * for unread mail |
| 650 | * 3. a - if load is too high |
| 651 | * 4. number of processes running and stopped |
| 652 | */ |
| 653 | stringprt("%du", users); |
| 654 | if (mailsize > 0 && mstbuf.st_mtime >= mstbuf.st_atime) |
| 655 | stringcat("*", -1); |
| 656 | if (!fullprocess && (proccheck || logcheck)) |
| 657 | stringcat("-", -1); |
| 658 | if (fullprocess && proccheck && readproctab()) { |
| 659 | register struct proc *p; |
| 660 | int procrun, procstop; |
| 661 | |
| 662 | /* |
| 663 | * We are only interested in processes which have the same |
| 664 | * uid as us, and whose parent process id is not 1. |
| 665 | */ |
| 666 | procrun = procstop = 0; |
| 667 | for (p = proc; p < procNPROC; p++) { |
| 668 | if (p->p_stat == 0 || p->p_pgrp == 0 || |
| 669 | p->p_uid != uid || p->p_ppid == 1) |
| 670 | continue; |
| 671 | switch (p->p_stat) { |
| 672 | case SSTOP: |
| 673 | procstop++; |
| 674 | break; |
| 675 | case SSLEEP: |
| 676 | /* |
| 677 | * Sleep can mean waiting for a signal or just |
| 678 | * in a disk or page wait queue ready to run. |
| 679 | * We can tell if it is the later by the pri |
| 680 | * being negative. |
| 681 | */ |
| 682 | if (p->p_pri < PZERO) |
| 683 | procrun++; |
| 684 | break; |
| 685 | case SWAIT: |
| 686 | case SRUN: |
| 687 | case SIDL: |
| 688 | procrun++; |
| 689 | } |
| 690 | } |
| 691 | if (procrun > 0 || procstop > 0) { |
| 692 | stringspace(); |
| 693 | if (procrun > 0 && procstop > 0) |
| 694 | stringprt("%dr %ds", procrun, procstop); |
| 695 | else if (procrun > 0) |
| 696 | stringprt("%dr", procrun); |
| 697 | else |
| 698 | stringprt("%ds", procstop); |
| 699 | } |
| 700 | } |
| 701 | /* |
| 702 | * If anyone has logged on or off, and we are interested in it, |
| 703 | * print it out. |
| 704 | */ |
| 705 | if (logcheck) { |
| 706 | /* old and new have already been swapped */ |
| 707 | if (on) { |
| 708 | stringspace(); |
| 709 | stringcat("on:", -1); |
| 710 | for (i = 0; i < nentries; i++) |
| 711 | if (status[i] & ON) { |
| 712 | stringprt(" %.8s", old[i].ut_name); |
| 713 | ttyprint(old[i].ut_line); |
| 714 | } |
| 715 | } |
| 716 | if (off) { |
| 717 | stringspace(); |
| 718 | stringcat("off:", -1); |
| 719 | for (i = 0; i < nentries; i++) |
| 720 | if (status[i] & OFF) { |
| 721 | stringprt(" %.8s", new[i].ut_name); |
| 722 | ttyprint(new[i].ut_line); |
| 723 | } |
| 724 | } |
| 725 | } |
| 726 | bottom: |
| 727 | /* dump out what we know */ |
| 728 | stringdump(); |
| 729 | } |
| 730 | |
| 731 | timeprint() |
| 732 | { |
| 733 | long curtime; |
| 734 | struct tm *tp, *localtime(); |
| 735 | static int beepable = 1; |
| 736 | |
| 737 | /* always print time */ |
| 738 | time(&curtime); |
| 739 | tp = localtime(&curtime); |
| 740 | if (dateprint) |
| 741 | stringprt("%.11s", ctime(&curtime)); |
| 742 | stringprt("%d:%02d", tp->tm_hour > 12 ? tp->tm_hour - 12 : |
| 743 | (tp->tm_hour == 0 ? 12 : tp->tm_hour), tp->tm_min); |
| 744 | if (synch) /* sync with clock */ |
| 745 | delay = 60 - tp->tm_sec; |
| 746 | /* |
| 747 | * Beepable is used to insure that we get at most one set of beeps |
| 748 | * every half hour. |
| 749 | */ |
| 750 | if (beep) |
| 751 | if (beepable) { |
| 752 | if (tp->tm_min == 30) { |
| 753 | tputs(bell, 1, outc); |
| 754 | fflush(stdout); |
| 755 | beepable = 0; |
| 756 | } else if (tp->tm_min == 0) { |
| 757 | tputs(bell, 1, outc); |
| 758 | fflush(stdout); |
| 759 | sleep(2); |
| 760 | tputs(bell, 1, outc); |
| 761 | fflush(stdout); |
| 762 | beepable = 0; |
| 763 | } |
| 764 | } else |
| 765 | if (tp->tm_min != 0 && tp->tm_min != 30) |
| 766 | beepable = 1; |
| 767 | } |
| 768 | |
| 769 | /* |
| 770 | * whocheck -- check for file named .who and print it on the who line first |
| 771 | */ |
| 772 | whocheck() |
| 773 | { |
| 774 | int chss; |
| 775 | register char *p; |
| 776 | char buff[81]; |
| 777 | int whofile; |
| 778 | |
| 779 | if ((whofile = open(whofilename, 0)) < 0 && |
| 780 | (whofile = open(whofilename2, 0)) < 0) |
| 781 | return; |
| 782 | chss = read(whofile, buff, sizeof buff - 1); |
| 783 | close(whofile); |
| 784 | if (chss <= 0) |
| 785 | return; |
| 786 | buff[chss] = '\0'; |
| 787 | /* |
| 788 | * Remove all line feeds, and replace by spaces if they are within |
| 789 | * the message, else replace them by nulls. |
| 790 | */ |
| 791 | for (p = buff; *p;) |
| 792 | if (*p == '\n') |
| 793 | if (p[1]) |
| 794 | *p++ = ' '; |
| 795 | else |
| 796 | *p = '\0'; |
| 797 | else |
| 798 | p++; |
| 799 | stringcat(buff, p - buff); |
| 800 | stringspace(); |
| 801 | } |
| 802 | |
| 803 | /* |
| 804 | * ttyprint -- given the name of a tty, print in the string buffer its |
| 805 | * short name surrounded by parenthesis. |
| 806 | * ttyxx is printed as (xx) |
| 807 | * console is printed as (cty) |
| 808 | */ |
| 809 | ttyprint(name) |
| 810 | char *name; |
| 811 | { |
| 812 | char buff[11]; |
| 813 | |
| 814 | if (strncmp(name, "tty", 3) == 0) |
| 815 | stringprt("(%.*s)", LINESIZE - 3, name + 3); |
| 816 | else if (strcmp(name, "console") == 0) |
| 817 | stringcat("(cty)", -1); |
| 818 | else |
| 819 | stringprt("(%.*s)", LINESIZE, name); |
| 820 | } |
| 821 | |
| 822 | /* |
| 823 | * mail checking function |
| 824 | * returns 0 if no mail seen |
| 825 | */ |
| 826 | mailseen() |
| 827 | { |
| 828 | FILE *mfd; |
| 829 | register n; |
| 830 | register char *cp; |
| 831 | char lbuf[100], sendbuf[100], *bufend; |
| 832 | char seenspace; |
| 833 | int retval = 0; |
| 834 | |
| 835 | if (stat(username, &mstbuf) < 0) { |
| 836 | mailsize = 0; |
| 837 | return 0; |
| 838 | } |
| 839 | if (mstbuf.st_size <= mailsize || (mfd = fopen(username,"r")) == NULL) { |
| 840 | mailsize = mstbuf.st_size; |
| 841 | return 0; |
| 842 | } |
| 843 | fseek(mfd, mailsize, 0); |
| 844 | while ((n = readline(mfd, lbuf, sizeof lbuf)) >= 0 && |
| 845 | strncmp(lbuf, "From ", 5) != 0) |
| 846 | ; |
| 847 | if (n < 0) { |
| 848 | stringcat("Mail has just arrived", -1); |
| 849 | goto out; |
| 850 | } |
| 851 | retval = 1; |
| 852 | /* |
| 853 | * Found a From line, get second word, which is the sender, |
| 854 | * and print it. |
| 855 | */ |
| 856 | for (cp = lbuf + 5; *cp && *cp != ' '; cp++) /* skip to blank */ |
| 857 | ; |
| 858 | *cp = '\0'; /* terminate name */ |
| 859 | stringspace(); |
| 860 | stringprt("Mail from %s ", lbuf + 5); |
| 861 | /* |
| 862 | * Print subject, and skip over header. |
| 863 | */ |
| 864 | while ((n = readline(mfd, lbuf, sizeof lbuf)) > 0) |
| 865 | if (strncmp(lbuf, "Subject:", 8) == 0) |
| 866 | stringprt("on %s ", lbuf + 9); |
| 867 | if (!emacs) |
| 868 | stringcat(arrows, 2); |
| 869 | else |
| 870 | stringcat(": ", 2); |
| 871 | if (n < 0) /* already at eof */ |
| 872 | goto out; |
| 873 | /* |
| 874 | * Print as much of the letter as we can. |
| 875 | */ |
| 876 | cp = sendbuf; |
| 877 | if ((n = columns - chars) > sizeof sendbuf - 1) |
| 878 | n = sizeof sendbuf - 1; |
| 879 | bufend = cp + n; |
| 880 | seenspace = 0; |
| 881 | while ((n = readline(mfd, lbuf, sizeof lbuf)) >= 0) { |
| 882 | register char *rp; |
| 883 | |
| 884 | if (strncmp(lbuf, "From ", 5) == 0) |
| 885 | break; |
| 886 | if (cp >= bufend) |
| 887 | continue; |
| 888 | if (!seenspace) { |
| 889 | *cp++ = ' '; /* space before lines */ |
| 890 | seenspace = 1; |
| 891 | } |
| 892 | rp = lbuf; |
| 893 | while (*rp && cp < bufend) |
| 894 | if (isspace(*rp)) { |
| 895 | if (!seenspace) { |
| 896 | *cp++ = ' '; |
| 897 | seenspace = 1; |
| 898 | } |
| 899 | rp++; |
| 900 | } else { |
| 901 | *cp++ = *rp++; |
| 902 | seenspace = 0; |
| 903 | } |
| 904 | } |
| 905 | *cp = 0; |
| 906 | stringcat(sendbuf, -1); |
| 907 | /* |
| 908 | * Want to update write time so a star will |
| 909 | * appear after the number of users until the |
| 910 | * user reads his mail. |
| 911 | */ |
| 912 | out: |
| 913 | mailsize = linebeg; |
| 914 | fclose(mfd); |
| 915 | touch(username); |
| 916 | return retval; |
| 917 | } |
| 918 | |
| 919 | /* |
| 920 | * readline -- read a line from fp and store it in buf. |
| 921 | * return the number of characters read. |
| 922 | */ |
| 923 | readline(fp, buf, n) |
| 924 | register FILE *fp; |
| 925 | char *buf; |
| 926 | register n; |
| 927 | { |
| 928 | register c; |
| 929 | register char *cp = buf; |
| 930 | |
| 931 | linebeg = ftell(fp); /* remember loc where line begins */ |
| 932 | cp = buf; |
| 933 | while (--n > 0 && (c = getc(fp)) != EOF && c != '\n') |
| 934 | *cp++ = c; |
| 935 | *cp = 0; |
| 936 | if (c == EOF && cp - buf == 0) |
| 937 | return -1; |
| 938 | return cp - buf; |
| 939 | } |
| 940 | |
| 941 | |
| 942 | /* |
| 943 | * string hacking functions |
| 944 | */ |
| 945 | |
| 946 | stringinit() |
| 947 | { |
| 948 | sp = strarr; |
| 949 | chars = 0; |
| 950 | } |
| 951 | |
| 952 | /*VARARGS1*/ |
| 953 | stringprt(fmt) |
| 954 | char *fmt; |
| 955 | { |
| 956 | va_list ap; |
| 957 | char tempbuf[150]; |
| 958 | |
| 959 | va_start(ap, fmt); |
| 960 | (void)vsnprintf(tempbuf, sizeof(tempbuf), fmt, ap); |
| 961 | va_end(ap); |
| 962 | stringcat(tempbuf, -1); |
| 963 | } |
| 964 | |
| 965 | stringdump() |
| 966 | { |
| 967 | char bigbuf[sizeof strarr + 200]; |
| 968 | register char *bp = bigbuf; |
| 969 | register int i; |
| 970 | |
| 971 | if (!emacs) { |
| 972 | if (sawmail) |
| 973 | bp = strcpy1(bp, bell); |
| 974 | if (eslok) |
| 975 | bp = strcpy1(bp, tparm(to_status_line, |
| 976 | leftline ? 0 : columns - chars)); |
| 977 | else { |
| 978 | bp = strcpy1(bp, to_status_line); |
| 979 | if (!shortline && !leftline) |
| 980 | for (i = columns - chars; --i >= 0;) |
| 981 | *bp++ = ' '; |
| 982 | } |
| 983 | if (reverse && revtime != 0) |
| 984 | bp = strcpy1(bp, rev_out); |
| 985 | } |
| 986 | *sp = 0; |
| 987 | bp = strcpy1(bp, strarr); |
| 988 | if (!emacs) { |
| 989 | if (reverse) |
| 990 | bp = strcpy1(bp, rev_end); |
| 991 | bp = strcpy1(bp, from_status_line); |
| 992 | if (sawmail) |
| 993 | bp = strcpy1(strcpy1(bp, bell), bell); |
| 994 | *bp = 0; |
| 995 | tputs(bigbuf, 1, outc); |
| 996 | if (mustclear) { |
| 997 | mustclear = 0; |
| 998 | tputs(clr_eol, 1, outc); |
| 999 | } |
| 1000 | if (dbug) |
| 1001 | putchar('\n'); |
| 1002 | fflush(stdout); |
| 1003 | } else |
| 1004 | write(2, bigbuf, bp - bigbuf); |
| 1005 | } |
| 1006 | |
| 1007 | stringspace() |
| 1008 | { |
| 1009 | if (reverse && revtime != 0) { |
| 1010 | #ifdef TERMINFO |
| 1011 | stringcat(rev_end, |
| 1012 | magic_cookie_glitch <= 0 ? 0 : magic_cookie_glitch); |
| 1013 | stringcat(" ", 1); |
| 1014 | stringcat(rev_out, |
| 1015 | magic_cookie_glitch <= 0 ? 0 : magic_cookie_glitch); |
| 1016 | #else |
| 1017 | stringcat(rev_end, 0); |
| 1018 | stringcat(" ", 1); |
| 1019 | stringcat(rev_out, 0); |
| 1020 | #endif TERMINFO |
| 1021 | } else |
| 1022 | stringcat(" ", 1); |
| 1023 | } |
| 1024 | |
| 1025 | /* |
| 1026 | * stringcat :: concatenate the characters in string str to the list we are |
| 1027 | * building to send out. |
| 1028 | * str - the string to print. may contain funny (terminal control) chars. |
| 1029 | * n - the number of printable characters in the string |
| 1030 | * or if -1 then str is all printable so we can truncate it, |
| 1031 | * otherwise don't print only half a string. |
| 1032 | */ |
| 1033 | stringcat(str, n) |
| 1034 | register char *str; |
| 1035 | register n; |
| 1036 | { |
| 1037 | register char *p = sp; |
| 1038 | |
| 1039 | if (n < 0) { /* truncate */ |
| 1040 | n = columns - chars; |
| 1041 | while ((*p++ = *str++) && --n >= 0) |
| 1042 | ; |
| 1043 | p--; |
| 1044 | chars += p - sp; |
| 1045 | sp = p; |
| 1046 | } else if (chars + n <= columns) { /* don't truncate */ |
| 1047 | while (*p++ = *str++) |
| 1048 | ; |
| 1049 | chars += n; |
| 1050 | sp = p - 1; |
| 1051 | } |
| 1052 | } |
| 1053 | |
| 1054 | /* |
| 1055 | * touch :: update the modify time of a file. |
| 1056 | */ |
| 1057 | touch(name) |
| 1058 | char *name; /* name of file */ |
| 1059 | { |
| 1060 | register fd; |
| 1061 | char buf; |
| 1062 | |
| 1063 | if ((fd = open(name, 2)) >= 0) { |
| 1064 | read(fd, &buf, 1); /* get first byte */ |
| 1065 | lseek(fd, 0L, 0); /* go to beginning */ |
| 1066 | write(fd, &buf, 1); /* and rewrite first byte */ |
| 1067 | close(fd); |
| 1068 | } |
| 1069 | } |
| 1070 | |
| 1071 | |
| 1072 | /* |
| 1073 | * clearbotl :: clear bottom line. |
| 1074 | * called when process quits or is killed. |
| 1075 | * it clears the bottom line of the terminal. |
| 1076 | */ |
| 1077 | void |
| 1078 | clearbotl() |
| 1079 | { |
| 1080 | register int fd; |
| 1081 | void sigexit(); |
| 1082 | |
| 1083 | signal(SIGALRM, sigexit); |
| 1084 | alarm(30); /* if can't open in 30 secs, just die */ |
| 1085 | if (!emacs && (fd = open(ourtty, 1)) >= 0) { |
| 1086 | write(fd, dis_status_line, strlen(dis_status_line)); |
| 1087 | close(fd); |
| 1088 | } |
| 1089 | #ifdef PROF |
| 1090 | if (chdir(_PATH_SYSLINE) < 0) |
| 1091 | (void) chdir(_PATH_TMP); |
| 1092 | #endif |
| 1093 | exit(0); |
| 1094 | } |
| 1095 | |
| 1096 | #ifdef TERMINFO |
| 1097 | initterm() |
| 1098 | { |
| 1099 | static char standbuf[40]; |
| 1100 | |
| 1101 | setupterm(0, 1, 0); |
| 1102 | if (!window && !has_status_line) { |
| 1103 | /* not an appropriate terminal */ |
| 1104 | if (!quiet) |
| 1105 | fprintf(stderr, "sysline: no status capability for %s\n", |
| 1106 | getenv("TERM")); |
| 1107 | exit(1); |
| 1108 | } |
| 1109 | if (window || status_line_esc_ok) { |
| 1110 | if (set_attributes) { |
| 1111 | /* reverse video mode */ |
| 1112 | strcpy(standbuf, |
| 1113 | tparm(set_attributes,0,0,1,0,0,0,0,0,0)); |
| 1114 | rev_out = standbuf; |
| 1115 | rev_end = exit_attribute_mode; |
| 1116 | } else if (enter_standout_mode && exit_standout_mode) { |
| 1117 | rev_out = enter_standout_mode; |
| 1118 | rev_end = exit_standout_mode; |
| 1119 | } else |
| 1120 | rev_out = rev_end = ""; |
| 1121 | } else |
| 1122 | rev_out = rev_end = ""; |
| 1123 | columns--; /* avoid cursor wraparound */ |
| 1124 | } |
| 1125 | |
| 1126 | #else /* TERMCAP */ |
| 1127 | |
| 1128 | initterm() |
| 1129 | { |
| 1130 | char *term, *cp; |
| 1131 | static char tbuf[1024]; |
| 1132 | char is2[40]; |
| 1133 | extern char *UP; |
| 1134 | |
| 1135 | if ((term = getenv("TERM")) == NULL) { |
| 1136 | if (!quiet) |
| 1137 | fprintf(stderr, |
| 1138 | "sysline: No TERM variable in enviroment\n"); |
| 1139 | exit(1); |
| 1140 | } |
| 1141 | if (tgetent(tbuf, term) <= 0) { |
| 1142 | if (!quiet) |
| 1143 | fprintf(stderr, |
| 1144 | "sysline: Unknown terminal type: %s\n", term); |
| 1145 | exit(1); |
| 1146 | } |
| 1147 | if (!window && tgetflag("hs") <= 0) { |
| 1148 | if (!strncmp(term, "h19", 3)) { |
| 1149 | /* for upward compatability with h19sys */ |
| 1150 | strcpy(to_status_line, |
| 1151 | "\033j\033x5\033x1\033Y8%+ \033o"); |
| 1152 | strcpy(from_status_line, "\033k\033y5"); |
| 1153 | strcpy(dis_status_line, "\033y1"); |
| 1154 | strcpy(rev_out, "\033p"); |
| 1155 | strcpy(rev_end, "\033q"); |
| 1156 | arrows = "\033Fhh\033G"; |
| 1157 | columns = 80; |
| 1158 | UP = "\b"; |
| 1159 | return; |
| 1160 | } |
| 1161 | if (!quiet) |
| 1162 | fprintf(stderr, |
| 1163 | "sysline: No status capability for %s\n", term); |
| 1164 | exit(1); |
| 1165 | } |
| 1166 | cp = is2; |
| 1167 | if (tgetstr("i2", &cp) != NULL) { |
| 1168 | /* someday tset will do this */ |
| 1169 | tputs(is2, 1, erroutc); |
| 1170 | fflush(stdout); |
| 1171 | } |
| 1172 | |
| 1173 | /* the "-1" below is to avoid cursor wraparound problems */ |
| 1174 | columns = tgetnum("ws"); |
| 1175 | hasws = columns >= 0; |
| 1176 | if (!hasws) |
| 1177 | columns = tgetnum("co"); |
| 1178 | columns -= 1; |
| 1179 | if (window) { |
| 1180 | strcpy(to_status_line, "\r"); |
| 1181 | cp = dis_status_line; /* use the clear line sequence */ |
| 1182 | *cp++ = '\r'; |
| 1183 | tgetstr("ce", &cp); |
| 1184 | if (leftline) |
| 1185 | strcpy(from_status_line, dis_status_line + 1); |
| 1186 | else |
| 1187 | strcpy(from_status_line, ""); |
| 1188 | } else { |
| 1189 | cp = to_status_line; |
| 1190 | tgetstr("ts", &cp); |
| 1191 | cp = from_status_line; |
| 1192 | tgetstr("fs", &cp); |
| 1193 | cp = dis_status_line; |
| 1194 | tgetstr("ds", &cp); |
| 1195 | eslok = tgetflag("es"); |
| 1196 | } |
| 1197 | if (eslok || window) { |
| 1198 | cp = rev_out; |
| 1199 | tgetstr("so", &cp); |
| 1200 | cp = rev_end; |
| 1201 | tgetstr("se", &cp); |
| 1202 | cp = clr_eol; |
| 1203 | tgetstr("ce", &cp); |
| 1204 | } else |
| 1205 | reverse = 0; /* turn off reverse video */ |
| 1206 | UP = "\b"; |
| 1207 | if (!strncmp(term, "h19", 3)) |
| 1208 | arrows = "\033Fhh\033G"; /* "two tiny graphic arrows" */ |
| 1209 | else |
| 1210 | arrows = "->"; |
| 1211 | } |
| 1212 | #endif TERMINFO |
| 1213 | |
| 1214 | #ifdef RWHO |
| 1215 | char * |
| 1216 | sysrup(hp) |
| 1217 | register struct remotehost *hp; |
| 1218 | { |
| 1219 | char filename[100]; |
| 1220 | struct whod wd; |
| 1221 | #define WHOD_HDR_SIZE (sizeof (wd) - sizeof (wd.wd_we)) |
| 1222 | static char buffer[50]; |
| 1223 | time_t now; |
| 1224 | |
| 1225 | /* |
| 1226 | * rh_file is initially 0. |
| 1227 | * This is ok since standard input is assumed to exist. |
| 1228 | */ |
| 1229 | if (hp->rh_file == 0) { |
| 1230 | /* |
| 1231 | * Try rwho hostname file, and if that fails try ucbhostname. |
| 1232 | */ |
| 1233 | (void) strcpy1(strcpy1(filename, _PATH_RWHO), hp->rh_host); |
| 1234 | if ((hp->rh_file = open(filename, 0)) < 0) { |
| 1235 | (void) strcpy1(strcpy1(strcpy1(filename, _PATH_RWHO), |
| 1236 | NETPREFIX), hp->rh_host); |
| 1237 | hp->rh_file = open(filename, 0); |
| 1238 | } |
| 1239 | } |
| 1240 | if (hp->rh_file < 0) { |
| 1241 | (void) sprintf(buffer, "%s?", hp->rh_host); |
| 1242 | return(buffer); |
| 1243 | } |
| 1244 | (void) lseek(hp->rh_file, (off_t)0, 0); |
| 1245 | if (read(hp->rh_file, (char *)&wd, WHOD_HDR_SIZE) != WHOD_HDR_SIZE) { |
| 1246 | (void) sprintf(buffer, "%s ?", hp->rh_host); |
| 1247 | return(buffer); |
| 1248 | } |
| 1249 | (void) time(&now); |
| 1250 | if (now - wd.wd_recvtime > DOWN_THRESHOLD) { |
| 1251 | long interval; |
| 1252 | long days, hours, minutes; |
| 1253 | |
| 1254 | interval = now - wd.wd_recvtime; |
| 1255 | minutes = (interval + 59) / 60; /* round to minutes */ |
| 1256 | hours = minutes / 60; /* extract hours from minutes */ |
| 1257 | minutes %= 60; /* remove hours from minutes */ |
| 1258 | days = hours / 24; /* extract days from hours */ |
| 1259 | hours %= 24; /* remove days from hours */ |
| 1260 | if (days > 7 || days < 0) |
| 1261 | (void) sprintf(buffer, "%s down", hp->rh_host); |
| 1262 | else if (days > 0) |
| 1263 | (void) sprintf(buffer, "%s %d+%d:%02d", |
| 1264 | hp->rh_host, days, hours, minutes); |
| 1265 | else |
| 1266 | (void) sprintf(buffer, "%s %d:%02d", |
| 1267 | hp->rh_host, hours, minutes); |
| 1268 | } else |
| 1269 | (void) sprintf(buffer, "%s %.1f", |
| 1270 | hp->rh_host, wd.wd_loadav[0]/100.0); |
| 1271 | return buffer; |
| 1272 | } |
| 1273 | #endif RWHO |
| 1274 | |
| 1275 | getwinsize() |
| 1276 | { |
| 1277 | #ifdef TIOCGWINSZ |
| 1278 | struct winsize winsize; |
| 1279 | |
| 1280 | /* the "-1" below is to avoid cursor wraparound problems */ |
| 1281 | if (!hasws && ioctl(2, TIOCGWINSZ, (char *)&winsize) >= 0 && |
| 1282 | winsize.ws_col != 0) |
| 1283 | columns = winsize.ws_col - 1; |
| 1284 | #endif |
| 1285 | } |
| 1286 | |
| 1287 | #ifdef SIGWINCH |
| 1288 | void |
| 1289 | sigwinch() |
| 1290 | { |
| 1291 | winchanged++; |
| 1292 | } |
| 1293 | #endif |
| 1294 | |
| 1295 | void |
| 1296 | sigexit() |
| 1297 | { |
| 1298 | exit(1); |
| 1299 | } |
| 1300 | |
| 1301 | char * |
| 1302 | strcpy1(p, q) |
| 1303 | register char *p, *q; |
| 1304 | { |
| 1305 | |
| 1306 | while (*p++ = *q++) |
| 1307 | ; |
| 1308 | return p - 1; |
| 1309 | } |
| 1310 | |
| 1311 | outc(c) |
| 1312 | char c; |
| 1313 | { |
| 1314 | if (dbug) |
| 1315 | printf("%s", unctrl(c)); |
| 1316 | else |
| 1317 | putchar(c); |
| 1318 | } |
| 1319 | |
| 1320 | erroutc(c) |
| 1321 | char c; |
| 1322 | { |
| 1323 | if (dbug) |
| 1324 | fprintf(stderr, "%s", unctrl(c)); |
| 1325 | else |
| 1326 | putc(c, stderr); |
| 1327 | } |