Commit | Line | Data |
---|---|---|
bcf1365c DF |
1 | /* |
2 | * Copyright (c) 1980 Regents of the University of California. | |
3 | * All rights reserved. The Berkeley software License Agreement | |
4 | * specifies the terms and conditions for redistribution. | |
5 | */ | |
6 | ||
7 | #ifndef lint | |
8 | char copyright[] = | |
9 | "@(#) Copyright (c) 1980 Regents of the University of California.\n\ | |
10 | All rights reserved.\n"; | |
11 | #endif not lint | |
12 | ||
22d4760e | 13 | #ifndef lint |
95a2c263 | 14 | static char sccsid[] = "@(#)login.c 5.3 (Berkeley) %G%"; |
bcf1365c | 15 | #endif not lint |
22d4760e | 16 | |
88a01c09 BJ |
17 | /* |
18 | * login [ name ] | |
3b8dd95e SL |
19 | * login -r hostname (for rlogind) |
20 | * login -h hostname (for telnetd, etc.) | |
88a01c09 BJ |
21 | */ |
22 | ||
7a625b73 | 23 | #include <sys/param.h> |
3b8dd95e SL |
24 | #include <sys/quota.h> |
25 | #include <sys/stat.h> | |
26 | #include <sys/time.h> | |
27 | #include <sys/resource.h> | |
9479aa87 | 28 | #include <sys/file.h> |
3b8dd95e | 29 | |
88a01c09 BJ |
30 | #include <sgtty.h> |
31 | #include <utmp.h> | |
32 | #include <signal.h> | |
33 | #include <pwd.h> | |
34 | #include <stdio.h> | |
88a01c09 | 35 | #include <lastlog.h> |
22d4760e | 36 | #include <errno.h> |
9479aa87 BJ |
37 | #include <ttyent.h> |
38 | #include <syslog.h> | |
f570e1ff | 39 | |
9479aa87 | 40 | #define SCMPN(a, b) strncmp(a, b, sizeof(a)) |
f570e1ff | 41 | #define SCPYN(a, b) strncpy(a, b, sizeof(a)) |
88a01c09 | 42 | |
b4389814 | 43 | #define NMAX sizeof(utmp.ut_name) |
88a01c09 | 44 | |
f570e1ff BJ |
45 | #define FALSE 0 |
46 | #define TRUE -1 | |
47 | ||
48 | char nolog[] = "/etc/nologin"; | |
49 | char qlog[] = ".hushlogin"; | |
88a01c09 BJ |
50 | char maildir[30] = "/usr/spool/mail/"; |
51 | char lastlog[] = "/usr/adm/lastlog"; | |
3479a16a | 52 | struct passwd nouser = {"", "nope", -1, -1, -1, "", "", "", "" }; |
88a01c09 BJ |
53 | struct sgttyb ttyb; |
54 | struct utmp utmp; | |
55 | char minusnam[16] = "-"; | |
d3737d51 | 56 | char *envinit[] = { 0 }; /* now set by setenv calls */ |
3b8dd95e SL |
57 | /* |
58 | * This bounds the time given to login. We initialize it here | |
59 | * so it can be patched on machines where it's too small. | |
60 | */ | |
61 | int timeout = 60; | |
86eb6c9e | 62 | |
d3737d51 | 63 | char term[64]; |
88a01c09 | 64 | |
86eb6c9e | 65 | struct passwd *pwd; |
d3737d51 | 66 | char *strcat(), *rindex(), *index(), *malloc(), *realloc(); |
3b8dd95e | 67 | int timedout(); |
88a01c09 BJ |
68 | char *ttyname(); |
69 | char *crypt(); | |
70 | char *getpass(); | |
88a01c09 BJ |
71 | char *stypeof(); |
72 | extern char **environ; | |
22d4760e | 73 | extern int errno; |
88a01c09 | 74 | |
714accc5 SL |
75 | struct tchars tc = { |
76 | CINTR, CQUIT, CSTART, CSTOP, CEOT, CBRK | |
77 | }; | |
78 | struct ltchars ltc = { | |
79 | CSUSP, CDSUSP, CRPRNT, CFLUSH, CWERASE, CLNEXT | |
841d84b0 BJ |
80 | }; |
81 | ||
d3737d51 SL |
82 | struct winsize win = { 0, 0, 0, 0 }; |
83 | ||
86eb6c9e | 84 | int rflag; |
95a2c263 | 85 | int usererr = -1; |
b4389814 | 86 | char rusername[NMAX+1], lusername[NMAX+1]; |
86eb6c9e | 87 | char rpassword[NMAX+1]; |
e5321f7b | 88 | char name[NMAX+1]; |
b4389814 | 89 | char *rhost; |
86eb6c9e | 90 | |
88a01c09 | 91 | main(argc, argv) |
3b8dd95e | 92 | char *argv[]; |
88a01c09 BJ |
93 | { |
94 | register char *namep; | |
d3737d51 | 95 | int pflag = 0, hflag = 0, t, f, c; |
3b8dd95e | 96 | int invalid, quietlog; |
f570e1ff | 97 | FILE *nlfd; |
9479aa87 | 98 | char *ttyn, *tty; |
d3737d51 SL |
99 | int ldisc = 0, zero = 0, i; |
100 | char **envnew; | |
88a01c09 | 101 | |
3b8dd95e SL |
102 | signal(SIGALRM, timedout); |
103 | alarm(timeout); | |
88a01c09 BJ |
104 | signal(SIGQUIT, SIG_IGN); |
105 | signal(SIGINT, SIG_IGN); | |
3b8dd95e | 106 | setpriority(PRIO_PROCESS, 0, 0); |
22d4760e | 107 | quota(Q_SETUID, 0, 0, 0); |
3b8dd95e | 108 | /* |
d3737d51 | 109 | * -p is used by getty to tell login not to destroy the environment |
3b8dd95e SL |
110 | * -r is used by rlogind to cause the autologin protocol; |
111 | * -h is used by other servers to pass the name of the | |
112 | * remote host to login so that it may be placed in utmp and wtmp | |
113 | */ | |
95a2c263 | 114 | while (argc > 1) { |
3b8dd95e | 115 | if (strcmp(argv[1], "-r") == 0) { |
95a2c263 JB |
116 | if (rflag || hflag) { |
117 | printf("Only one of -r and -h allowed\n"); | |
118 | exit(1); | |
119 | } | |
120 | rflag = 1; | |
121 | usererr = doremotelogin(argv[2]); | |
3b8dd95e | 122 | SCPYN(utmp.ut_host, argv[2]); |
95a2c263 JB |
123 | argc -= 2; |
124 | argv += 2; | |
125 | continue; | |
b4389814 | 126 | } |
3b8dd95e | 127 | if (strcmp(argv[1], "-h") == 0 && getuid() == 0) { |
95a2c263 JB |
128 | if (rflag || hflag) { |
129 | printf("Only one of -r and -h allowed\n"); | |
130 | exit(1); | |
131 | } | |
d3737d51 | 132 | hflag = 1; |
3b8dd95e | 133 | SCPYN(utmp.ut_host, argv[2]); |
95a2c263 JB |
134 | argc -= 2; |
135 | argv += 2; | |
136 | continue; | |
b4389814 | 137 | } |
d3737d51 SL |
138 | if (strcmp(argv[1], "-p") == 0) { |
139 | argc--; | |
140 | argv++; | |
141 | pflag = 1; | |
95a2c263 | 142 | continue; |
d3737d51 | 143 | } |
95a2c263 | 144 | break; |
86eb6c9e | 145 | } |
714accc5 | 146 | ioctl(0, TIOCLSET, &zero); |
c95ed2b2 | 147 | ioctl(0, TIOCNXCL, 0); |
4f8d3876 BJ |
148 | ioctl(0, FIONBIO, &zero); |
149 | ioctl(0, FIOASYNC, &zero); | |
714accc5 | 150 | ioctl(0, TIOCGETP, &ttyb); |
3b8dd95e SL |
151 | /* |
152 | * If talking to an rlogin process, | |
153 | * propagate the terminal type and | |
154 | * baud rate across the network. | |
155 | */ | |
156 | if (rflag) | |
157 | doremoteterm(term, &ttyb); | |
714accc5 SL |
158 | ioctl(0, TIOCSLTC, <c); |
159 | ioctl(0, TIOCSETC, &tc); | |
160 | ioctl(0, TIOCSETP, &ttyb); | |
3b8dd95e | 161 | for (t = getdtablesize(); t > 3; t--) |
88a01c09 BJ |
162 | close(t); |
163 | ttyn = ttyname(0); | |
9479aa87 | 164 | if (ttyn == (char *)0) |
88a01c09 | 165 | ttyn = "/dev/tty??"; |
9479aa87 BJ |
166 | tty = rindex(ttyn, '/'); |
167 | if (tty == NULL) | |
168 | tty = ttyn; | |
169 | else | |
170 | tty++; | |
d3737d51 | 171 | openlog("login", LOG_ODELAY, 0); |
9479aa87 | 172 | t = 0; |
f570e1ff BJ |
173 | do { |
174 | ldisc = 0; | |
c95ed2b2 | 175 | ioctl(0, TIOCSETD, &ldisc); |
f570e1ff BJ |
176 | invalid = FALSE; |
177 | SCPYN(utmp.ut_name, ""); | |
3b8dd95e SL |
178 | /* |
179 | * Name specified, take it. | |
180 | */ | |
181 | if (argc > 1) { | |
f570e1ff BJ |
182 | SCPYN(utmp.ut_name, argv[1]); |
183 | argc = 0; | |
184 | } | |
3b8dd95e SL |
185 | /* |
186 | * If remote login take given name, | |
187 | * otherwise prompt user for something. | |
188 | */ | |
4f8d3876 | 189 | if (rflag) { |
3479a16a | 190 | SCPYN(utmp.ut_name, lusername); |
95a2c263 | 191 | if (usererr == -1) |
4f8d3876 | 192 | rflag = 0; |
4cf9fc9e | 193 | } else |
3b8dd95e | 194 | getloginname(&utmp); |
f570e1ff BJ |
195 | if (!strcmp(pwd->pw_shell, "/bin/csh")) { |
196 | ldisc = NTTYDISC; | |
197 | ioctl(0, TIOCSETD, &ldisc); | |
198 | } | |
3b8dd95e SL |
199 | /* |
200 | * If no remote login authentication and | |
201 | * a password exists for this user, prompt | |
202 | * for one and verify it. | |
203 | */ | |
95a2c263 | 204 | if (usererr == -1 && *pwd->pw_passwd != '\0') { |
3b8dd95e SL |
205 | char *pp; |
206 | ||
207 | setpriority(PRIO_PROCESS, 0, -4); | |
208 | pp = getpass("Password:"); | |
209 | namep = crypt(pp, pwd->pw_passwd); | |
210 | setpriority(PRIO_PROCESS, 0, 0); | |
211 | if (strcmp(namep, pwd->pw_passwd)) | |
212 | invalid = TRUE; | |
f570e1ff | 213 | } |
3b8dd95e SL |
214 | /* |
215 | * If user not super-user, check for logins disabled. | |
216 | */ | |
f570e1ff | 217 | if (pwd->pw_uid != 0 && (nlfd = fopen(nolog, "r")) > 0) { |
f570e1ff BJ |
218 | while ((c = getc(nlfd)) != EOF) |
219 | putchar(c); | |
220 | fflush(stdout); | |
221 | sleep(5); | |
222 | exit(0); | |
223 | } | |
3b8dd95e SL |
224 | /* |
225 | * If valid so far and root is logging in, | |
226 | * see if root logins on this terminal are permitted. | |
227 | */ | |
9479aa87 | 228 | if (!invalid && pwd->pw_uid == 0 && !rootterm(tty)) { |
d3737d51 | 229 | syslog(LOG_SECURITY, "ROOT LOGIN REFUSED %s", tty); |
f570e1ff BJ |
230 | invalid = TRUE; |
231 | } | |
232 | if (invalid) { | |
88a01c09 | 233 | printf("Login incorrect\n"); |
9479aa87 | 234 | if (++t >= 5) { |
d3737d51 | 235 | syslog(LOG_SECURITY, |
9479aa87 BJ |
236 | "REPEATED LOGIN FAILURES %s, %s", |
237 | tty, utmp.ut_name); | |
238 | ioctl(0, TIOCHPCL, (struct sgttyb *) 0); | |
d3737d51 | 239 | close(0), close(1), close(2); |
9479aa87 BJ |
240 | sleep(10); |
241 | exit(1); | |
242 | } | |
88a01c09 | 243 | } |
f570e1ff BJ |
244 | if (*pwd->pw_shell == '\0') |
245 | pwd->pw_shell = "/bin/sh"; | |
f570e1ff BJ |
246 | if (chdir(pwd->pw_dir) < 0 && !invalid ) { |
247 | if (chdir("/") < 0) { | |
248 | printf("No directory!\n"); | |
249 | invalid = TRUE; | |
250 | } else { | |
3b8dd95e SL |
251 | printf("No directory! %s\n", |
252 | "Logging in with home=/"); | |
f570e1ff BJ |
253 | pwd->pw_dir = "/"; |
254 | } | |
88a01c09 | 255 | } |
3b8dd95e SL |
256 | /* |
257 | * Remote login invalid must have been because | |
258 | * of a restriction of some sort, no extra chances. | |
259 | */ | |
95a2c263 | 260 | if (!usererr && invalid) |
86eb6c9e | 261 | exit(1); |
f570e1ff | 262 | } while (invalid); |
3b8dd95e SL |
263 | /* committed to login turn off timeout */ |
264 | alarm(0); | |
88a01c09 | 265 | |
790c9c8b | 266 | if (quota(Q_SETUID, pwd->pw_uid, 0, 0) < 0 && errno != EINVAL) { |
22d4760e SL |
267 | if (errno == EUSERS) |
268 | printf("%s.\n%s.\n", | |
269 | "Too many users logged on already", | |
270 | "Try again later"); | |
271 | else if (errno == EPROCLIM) | |
272 | printf("You have too many processes running.\n"); | |
273 | else | |
6821e9c5 | 274 | perror("quota (Q_SETUID)"); |
22d4760e SL |
275 | sleep(5); |
276 | exit(0); | |
277 | } | |
88a01c09 BJ |
278 | time(&utmp.ut_time); |
279 | t = ttyslot(); | |
9479aa87 | 280 | if (t > 0 && (f = open("/etc/utmp", O_WRONLY)) >= 0) { |
88a01c09 | 281 | lseek(f, (long)(t*sizeof(utmp)), 0); |
9479aa87 | 282 | SCPYN(utmp.ut_line, tty); |
88a01c09 BJ |
283 | write(f, (char *)&utmp, sizeof(utmp)); |
284 | close(f); | |
285 | } | |
9479aa87 | 286 | if ((f = open("/usr/adm/wtmp", O_WRONLY|O_APPEND)) >= 0) { |
88a01c09 BJ |
287 | write(f, (char *)&utmp, sizeof(utmp)); |
288 | close(f); | |
289 | } | |
9479aa87 BJ |
290 | quietlog = access(qlog, F_OK) == 0; |
291 | if ((f = open(lastlog, O_RDWR)) >= 0) { | |
f570e1ff BJ |
292 | struct lastlog ll; |
293 | ||
294 | lseek(f, (long)pwd->pw_uid * sizeof (struct lastlog), 0); | |
295 | if (read(f, (char *) &ll, sizeof ll) == sizeof ll && | |
3b8dd95e SL |
296 | ll.ll_time != 0 && !quietlog) { |
297 | printf("Last login: %.*s ", | |
298 | 24-5, (char *)ctime(&ll.ll_time)); | |
299 | if (*ll.ll_host != '\0') | |
300 | printf("from %.*s\n", | |
301 | sizeof (ll.ll_host), ll.ll_host); | |
302 | else | |
303 | printf("on %.*s\n", | |
304 | sizeof (ll.ll_line), ll.ll_line); | |
f570e1ff BJ |
305 | } |
306 | lseek(f, (long)pwd->pw_uid * sizeof (struct lastlog), 0); | |
307 | time(&ll.ll_time); | |
9479aa87 | 308 | SCPYN(ll.ll_line, tty); |
3b8dd95e | 309 | SCPYN(ll.ll_host, utmp.ut_host); |
f570e1ff BJ |
310 | write(f, (char *) &ll, sizeof ll); |
311 | close(f); | |
312 | } | |
88a01c09 | 313 | chown(ttyn, pwd->pw_uid, pwd->pw_gid); |
d3737d51 SL |
314 | if (!hflag) /* XXX */ |
315 | ioctl(0, TIOCSWINSZ, &win); | |
3479a16a | 316 | chmod(ttyn, 0622); |
88a01c09 | 317 | setgid(pwd->pw_gid); |
e5321f7b KM |
318 | strncpy(name, utmp.ut_name, NMAX); |
319 | name[NMAX] = '\0'; | |
b1198826 | 320 | initgroups(name, pwd->pw_gid); |
22d4760e | 321 | quota(Q_DOWARN, pwd->pw_uid, (dev_t)-1, 0); |
88a01c09 | 322 | setuid(pwd->pw_uid); |
d3737d51 SL |
323 | /* destroy environment unless user has asked to preserve it */ |
324 | if (!pflag) | |
325 | environ = envinit; | |
326 | ||
327 | /* set up environment, this time without destruction */ | |
328 | /* copy the environment before setenving */ | |
329 | i = 0; | |
330 | while (environ[i] != NULL) | |
331 | i++; | |
332 | envnew = (char **) malloc(sizeof (char *) * (i + 1)); | |
333 | for (; i >= 0; i--) | |
334 | envnew[i] = environ[i]; | |
335 | environ = envnew; | |
336 | ||
337 | setenv("HOME=", pwd->pw_dir); | |
338 | setenv("SHELL=", pwd->pw_shell); | |
339 | if (term[0] == '\0') | |
340 | strncpy(term, stypeof(tty), sizeof(term)); | |
341 | setenv("TERM=", term); | |
342 | setenv("USER=", pwd->pw_name); | |
343 | setenv("PATH=", ":/usr/ucb:/bin:/usr/bin"); | |
344 | ||
88a01c09 BJ |
345 | if ((namep = rindex(pwd->pw_shell, '/')) == NULL) |
346 | namep = pwd->pw_shell; | |
347 | else | |
348 | namep++; | |
349 | strcat(minusnam, namep); | |
9479aa87 | 350 | if (tty[sizeof("tty")-1] == 'd') |
d3737d51 SL |
351 | syslog(LOG_INFO, "DIALUP %s, %s", tty, pwd->pw_name); |
352 | if (pwd->pw_uid == 0) | |
353 | syslog(LOG_SECURITY, "ROOT LOGIN %s", tty); | |
4f8d3876 | 354 | if (!quietlog) { |
6821e9c5 | 355 | struct stat st; |
d3737d51 | 356 | |
f570e1ff BJ |
357 | showmotd(); |
358 | strcat(maildir, pwd->pw_name); | |
6821e9c5 S |
359 | if (stat(maildir, &st) == 0 && st.st_size != 0) |
360 | printf("You have %smail.\n", | |
d3737d51 | 361 | (st.st_mtime > st.st_atime) ? "new " : ""); |
f570e1ff | 362 | } |
3b8dd95e | 363 | signal(SIGALRM, SIG_DFL); |
88a01c09 BJ |
364 | signal(SIGQUIT, SIG_DFL); |
365 | signal(SIGINT, SIG_DFL); | |
5f87416f | 366 | signal(SIGTSTP, SIG_IGN); |
88a01c09 | 367 | execlp(pwd->pw_shell, minusnam, 0); |
f570e1ff | 368 | perror(pwd->pw_shell); |
88a01c09 BJ |
369 | printf("No shell\n"); |
370 | exit(0); | |
371 | } | |
372 | ||
3b8dd95e SL |
373 | getloginname(up) |
374 | register struct utmp *up; | |
375 | { | |
376 | register char *namep; | |
5a786176 | 377 | char c; |
3b8dd95e | 378 | |
3b8dd95e | 379 | while (up->ut_name[0] == '\0') { |
d910ab7f | 380 | namep = up->ut_name; |
5a786176 | 381 | printf("login: "); |
3b8dd95e SL |
382 | while ((c = getchar()) != '\n') { |
383 | if (c == ' ') | |
384 | c = '_'; | |
385 | if (c == EOF) | |
386 | exit(0); | |
387 | if (namep < up->ut_name+NMAX) | |
388 | *namep++ = c; | |
389 | } | |
390 | } | |
d910ab7f EW |
391 | strncpy(lusername, up->ut_name, NMAX); |
392 | lusername[NMAX] = 0; | |
d910ab7f | 393 | if ((pwd = getpwnam(lusername)) == NULL) |
3b8dd95e | 394 | pwd = &nouser; |
3b8dd95e SL |
395 | } |
396 | ||
397 | timedout() | |
398 | { | |
399 | ||
400 | printf("Login timed out after %d seconds\n", timeout); | |
401 | exit(0); | |
402 | } | |
403 | ||
88a01c09 BJ |
404 | int stopmotd; |
405 | catch() | |
406 | { | |
1886582e | 407 | |
88a01c09 BJ |
408 | signal(SIGINT, SIG_IGN); |
409 | stopmotd++; | |
410 | } | |
411 | ||
f570e1ff | 412 | rootterm(tty) |
1886582e | 413 | char *tty; |
f570e1ff | 414 | { |
9479aa87 BJ |
415 | register struct ttyent *t; |
416 | ||
417 | if ((t = getttynam(tty)) != NULL) { | |
418 | if (t->ty_status & TTY_SECURE) | |
419 | return (1); | |
f570e1ff | 420 | } |
9479aa87 | 421 | return (0); |
f570e1ff BJ |
422 | } |
423 | ||
88a01c09 BJ |
424 | showmotd() |
425 | { | |
426 | FILE *mf; | |
427 | register c; | |
428 | ||
429 | signal(SIGINT, catch); | |
9479aa87 | 430 | if ((mf = fopen("/etc/motd", "r")) != NULL) { |
f570e1ff | 431 | while ((c = getc(mf)) != EOF && stopmotd == 0) |
88a01c09 BJ |
432 | putchar(c); |
433 | fclose(mf); | |
434 | } | |
435 | signal(SIGINT, SIG_IGN); | |
436 | } | |
437 | ||
f570e1ff | 438 | #undef UNKNOWN |
88a01c09 BJ |
439 | #define UNKNOWN "su" |
440 | ||
441 | char * | |
442 | stypeof(ttyid) | |
3b8dd95e | 443 | char *ttyid; |
88a01c09 | 444 | { |
9479aa87 | 445 | register struct ttyent *t; |
88a01c09 | 446 | |
9479aa87 | 447 | if (ttyid == NULL || (t = getttynam(ttyid)) == NULL) |
88a01c09 | 448 | return (UNKNOWN); |
9479aa87 | 449 | return (t->ty_type); |
88a01c09 | 450 | } |
86eb6c9e | 451 | |
3b8dd95e SL |
452 | doremotelogin(host) |
453 | char *host; | |
454 | { | |
3b8dd95e SL |
455 | getstr(rusername, sizeof (rusername), "remuser"); |
456 | getstr(lusername, sizeof (lusername), "locuser"); | |
d3737d51 | 457 | getstr(term, sizeof(term), "Terminal type"); |
4cf9fc9e SL |
458 | if (getuid()) { |
459 | pwd = &nouser; | |
95a2c263 | 460 | return(-1); |
4cf9fc9e | 461 | } |
3b8dd95e | 462 | pwd = getpwnam(lusername); |
4cf9fc9e SL |
463 | if (pwd == NULL) { |
464 | pwd = &nouser; | |
95a2c263 | 465 | return(-1); |
3b8dd95e | 466 | } |
95a2c263 | 467 | return(ruserok(host, (pwd->pw_uid == 0), rusername, lusername)); |
3b8dd95e SL |
468 | } |
469 | ||
86eb6c9e BJ |
470 | getstr(buf, cnt, err) |
471 | char *buf; | |
472 | int cnt; | |
473 | char *err; | |
474 | { | |
475 | char c; | |
476 | ||
477 | do { | |
478 | if (read(0, &c, 1) != 1) | |
479 | exit(1); | |
480 | if (--cnt < 0) { | |
481 | printf("%s too long\r\n", err); | |
482 | exit(1); | |
483 | } | |
484 | *buf++ = c; | |
485 | } while (c != 0); | |
486 | } | |
4f8d3876 | 487 | |
3b8dd95e SL |
488 | char *speeds[] = |
489 | { "0", "50", "75", "110", "134", "150", "200", "300", | |
490 | "600", "1200", "1800", "2400", "4800", "9600", "19200", "38400" }; | |
491 | #define NSPEEDS (sizeof (speeds) / sizeof (speeds[0])) | |
492 | ||
493 | doremoteterm(term, tp) | |
494 | char *term; | |
495 | struct sgttyb *tp; | |
496 | { | |
d3737d51 SL |
497 | register char *cp = index(term, '/'), **cpp; |
498 | char *speed; | |
499 | struct winsize ws; | |
3b8dd95e SL |
500 | |
501 | if (cp) { | |
d3737d51 SL |
502 | *cp++ = '\0'; |
503 | speed = cp; | |
504 | cp = index(speed, '/'); | |
505 | if (cp) | |
506 | *cp++ = '\0'; | |
507 | for (cpp = speeds; cpp < &speeds[NSPEEDS]; cpp++) | |
508 | if (strcmp(*cpp, speed) == 0) { | |
509 | tp->sg_ispeed = tp->sg_ospeed = cpp-speeds; | |
3b8dd95e SL |
510 | break; |
511 | } | |
d3737d51 SL |
512 | ws.ws_row = ws.ws_col = -1; |
513 | ws.ws_xpixel = ws.ws_ypixel = -1; | |
514 | if (cp) { | |
7ff5929a | 515 | ws.ws_row = atoi(cp); |
d3737d51 SL |
516 | cp = index(cp, ','); |
517 | if (cp == 0) | |
518 | goto done; | |
519 | ws.ws_col = atoi(++cp); | |
520 | cp = index(cp, ','); | |
521 | if (cp == 0) | |
522 | goto done; | |
523 | ws.ws_xpixel = atoi(++cp); | |
524 | cp = index(cp, ','); | |
525 | if (cp == 0) | |
526 | goto done; | |
527 | ws.ws_ypixel = atoi(++cp); | |
528 | } | |
529 | done: | |
530 | if (ws.ws_row != -1 && ws.ws_col != -1 && | |
531 | ws.ws_xpixel != -1 && ws.ws_ypixel != -1) | |
532 | win = ws; | |
3b8dd95e SL |
533 | } |
534 | tp->sg_flags = ECHO|CRMOD|ANYP|XTABS; | |
535 | } | |
d3737d51 SL |
536 | |
537 | /* | |
538 | * Set the value of var to be arg in the Unix 4.2 BSD environment env. | |
539 | * Var should end with '='. | |
540 | * (bindings are of the form "var=value") | |
541 | * This procedure assumes the memory for the first level of environ | |
542 | * was allocated using malloc. | |
543 | */ | |
544 | setenv(var, value) | |
545 | char *var, *value; | |
546 | { | |
547 | extern char **environ; | |
548 | int index = 0; | |
549 | int varlen = strlen(var); | |
550 | int vallen = strlen(value); | |
551 | ||
552 | for (index = 0; environ[index] != NULL; index++) { | |
553 | if (strncmp(environ[index], var, varlen) == 0) { | |
554 | /* found it */ | |
555 | environ[index] = malloc(varlen + vallen + 1); | |
556 | strcpy(environ[index], var); | |
557 | strcat(environ[index], value); | |
558 | return; | |
559 | } | |
560 | } | |
561 | environ = (char **) realloc(environ, sizeof (char *) * (index + 2)); | |
562 | if (environ == NULL) { | |
563 | fprintf(stderr, "login: malloc out of memory\n"); | |
564 | exit(1); | |
565 | } | |
566 | environ[index] = malloc(varlen + vallen + 1); | |
567 | strcpy(environ[index], var); | |
568 | strcat(environ[index], value); | |
569 | environ[++index] = NULL; | |
570 | } |