1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 27*0Sstevel@tonic-gate /* All Rights Reserved */ 28*0Sstevel@tonic-gate 29*0Sstevel@tonic-gate 30*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 31*0Sstevel@tonic-gate 32*0Sstevel@tonic-gate #include <stdio.h> 33*0Sstevel@tonic-gate #include <stdlib.h> 34*0Sstevel@tonic-gate #include <unistd.h> 35*0Sstevel@tonic-gate #include <fcntl.h> 36*0Sstevel@tonic-gate #include <errno.h> 37*0Sstevel@tonic-gate #include <ctype.h> 38*0Sstevel@tonic-gate #include <string.h> 39*0Sstevel@tonic-gate #include <signal.h> 40*0Sstevel@tonic-gate #include <sys/stat.h> 41*0Sstevel@tonic-gate #include <utmpx.h> 42*0Sstevel@tonic-gate #include <pwd.h> 43*0Sstevel@tonic-gate #include <dirent.h> 44*0Sstevel@tonic-gate #include <sys/param.h> 45*0Sstevel@tonic-gate #include <sys/acl.h> 46*0Sstevel@tonic-gate #include "ttymon.h" 47*0Sstevel@tonic-gate #include "tmextern.h" 48*0Sstevel@tonic-gate #include "tmstruct.h" 49*0Sstevel@tonic-gate 50*0Sstevel@tonic-gate static char devbuf[BUFSIZ]; 51*0Sstevel@tonic-gate static char *devname; 52*0Sstevel@tonic-gate 53*0Sstevel@tonic-gate static int parse_args(); 54*0Sstevel@tonic-gate static void ttymon_options(); 55*0Sstevel@tonic-gate static void getty_options(); 56*0Sstevel@tonic-gate static void usage(); 57*0Sstevel@tonic-gate static char *find_ttyname(); 58*0Sstevel@tonic-gate 59*0Sstevel@tonic-gate extern void tmchild(); 60*0Sstevel@tonic-gate extern int vml(); 61*0Sstevel@tonic-gate 62*0Sstevel@tonic-gate void revokedevaccess(char *, uid_t, gid_t, mode_t); 63*0Sstevel@tonic-gate /* cannot include libdevinfo.h */ 64*0Sstevel@tonic-gate extern int di_devperm_logout(const char *); 65*0Sstevel@tonic-gate 66*0Sstevel@tonic-gate /* 67*0Sstevel@tonic-gate * ttymon_express - This is call when ttymon is invoked with args 68*0Sstevel@tonic-gate * or invoked as getty 69*0Sstevel@tonic-gate * - This special version of ttymon will monitor 70*0Sstevel@tonic-gate * one port only 71*0Sstevel@tonic-gate * - It is intended to be used when some process 72*0Sstevel@tonic-gate * wants to have a login session on the fly 73*0Sstevel@tonic-gate */ 74*0Sstevel@tonic-gate void 75*0Sstevel@tonic-gate ttymon_express(int argc, char **argv) 76*0Sstevel@tonic-gate { 77*0Sstevel@tonic-gate struct pmtab *pmtab; 78*0Sstevel@tonic-gate struct sigaction sigact; 79*0Sstevel@tonic-gate extern int Retry; 80*0Sstevel@tonic-gate extern void open_device(); 81*0Sstevel@tonic-gate extern void read_ttydefs(); 82*0Sstevel@tonic-gate extern int checkut_line(); 83*0Sstevel@tonic-gate #ifdef DEBUG 84*0Sstevel@tonic-gate extern FILE *Debugfp; 85*0Sstevel@tonic-gate extern void opendebug(); 86*0Sstevel@tonic-gate #endif 87*0Sstevel@tonic-gate 88*0Sstevel@tonic-gate #ifdef DEBUG 89*0Sstevel@tonic-gate opendebug(TRUE); 90*0Sstevel@tonic-gate #endif 91*0Sstevel@tonic-gate 92*0Sstevel@tonic-gate sigact.sa_flags = 0; 93*0Sstevel@tonic-gate sigact.sa_handler = SIG_IGN; 94*0Sstevel@tonic-gate (void) sigemptyset(&sigact.sa_mask); 95*0Sstevel@tonic-gate (void) sigaction(SIGINT, &sigact, NULL); 96*0Sstevel@tonic-gate 97*0Sstevel@tonic-gate if ((pmtab = ALLOC_PMTAB) == PNULL) { 98*0Sstevel@tonic-gate log("ttymon_express: ALLOC_PMTAB failed"); 99*0Sstevel@tonic-gate exit(1); 100*0Sstevel@tonic-gate } 101*0Sstevel@tonic-gate 102*0Sstevel@tonic-gate if (parse_args(argc, argv, pmtab) != 0) { 103*0Sstevel@tonic-gate log("ttymon_express: parse_args failed"); 104*0Sstevel@tonic-gate exit(1); 105*0Sstevel@tonic-gate } 106*0Sstevel@tonic-gate 107*0Sstevel@tonic-gate read_ttydefs(NULL, FALSE); 108*0Sstevel@tonic-gate 109*0Sstevel@tonic-gate if ((pmtab->p_device != NULL) && (*(pmtab->p_device) != '\0') && 110*0Sstevel@tonic-gate strcmp(pmtab->p_device, "/dev/console") == 0) { 111*0Sstevel@tonic-gate while (checkut_line(pmtab->p_device)) 112*0Sstevel@tonic-gate sleep(15); 113*0Sstevel@tonic-gate } 114*0Sstevel@tonic-gate 115*0Sstevel@tonic-gate if ((pmtab->p_device == NULL) || (*(pmtab->p_device) == '\0')) { 116*0Sstevel@tonic-gate devname = find_ttyname(0); 117*0Sstevel@tonic-gate if ((devname == NULL) || (*devname == '\0')) { 118*0Sstevel@tonic-gate log("ttyname cannot find the device on fd 0"); 119*0Sstevel@tonic-gate exit(1); 120*0Sstevel@tonic-gate } 121*0Sstevel@tonic-gate pmtab->p_device = devname; 122*0Sstevel@tonic-gate #ifdef DEBUG 123*0Sstevel@tonic-gate debug("ttymon_express: devname = %s", devname); 124*0Sstevel@tonic-gate #endif 125*0Sstevel@tonic-gate /* 126*0Sstevel@tonic-gate * become session leader 127*0Sstevel@tonic-gate * fd 0 is closed and reopened just to make sure 128*0Sstevel@tonic-gate * controlling tty is set up right 129*0Sstevel@tonic-gate */ 130*0Sstevel@tonic-gate (void) setsid(); 131*0Sstevel@tonic-gate (void) close(0); 132*0Sstevel@tonic-gate revokedevaccess(pmtab->p_device, 0, 0, 0); 133*0Sstevel@tonic-gate if (open(pmtab->p_device, O_RDWR) < 0) { 134*0Sstevel@tonic-gate log("open %s failed: %s", pmtab->p_device, 135*0Sstevel@tonic-gate strerror(errno)); 136*0Sstevel@tonic-gate exit(1); 137*0Sstevel@tonic-gate } 138*0Sstevel@tonic-gate if ((pmtab->p_modules != NULL) && 139*0Sstevel@tonic-gate (*(pmtab->p_modules) != '\0')) { 140*0Sstevel@tonic-gate if (push_linedisc(0, pmtab->p_modules, 141*0Sstevel@tonic-gate pmtab->p_device) == -1) 142*0Sstevel@tonic-gate exit(1); 143*0Sstevel@tonic-gate } 144*0Sstevel@tonic-gate if (initial_termio(0, pmtab) == -1) 145*0Sstevel@tonic-gate exit(1); 146*0Sstevel@tonic-gate di_devperm_logout((const char *)pmtab->p_device); 147*0Sstevel@tonic-gate } else { 148*0Sstevel@tonic-gate (void) setsid(); 149*0Sstevel@tonic-gate (void) close(0); 150*0Sstevel@tonic-gate Retry = FALSE; 151*0Sstevel@tonic-gate open_device(pmtab); 152*0Sstevel@tonic-gate if (Retry) /* open failed */ 153*0Sstevel@tonic-gate exit(1); 154*0Sstevel@tonic-gate } 155*0Sstevel@tonic-gate tmchild(pmtab); 156*0Sstevel@tonic-gate exit(1); /*NOTREACHED*/ 157*0Sstevel@tonic-gate } 158*0Sstevel@tonic-gate 159*0Sstevel@tonic-gate /* 160*0Sstevel@tonic-gate * parse_arg - parse cmd line arguments 161*0Sstevel@tonic-gate */ 162*0Sstevel@tonic-gate static int 163*0Sstevel@tonic-gate parse_args(int argc, char **argv, struct pmtab *pmtab) 164*0Sstevel@tonic-gate { 165*0Sstevel@tonic-gate static char p_server[] = "/usr/bin/login"; 166*0Sstevel@tonic-gate extern char *lastname(); 167*0Sstevel@tonic-gate extern void getty_account(); 168*0Sstevel@tonic-gate 169*0Sstevel@tonic-gate /* initialize fields to some default first */ 170*0Sstevel@tonic-gate pmtab->p_tag = ""; 171*0Sstevel@tonic-gate pmtab->p_flags = 0; 172*0Sstevel@tonic-gate pmtab->p_identity = "root"; 173*0Sstevel@tonic-gate pmtab->p_res1 = "reserved"; 174*0Sstevel@tonic-gate pmtab->p_res2 = "reserved"; 175*0Sstevel@tonic-gate pmtab->p_res3 = "reserved"; 176*0Sstevel@tonic-gate pmtab->p_uid = 0; 177*0Sstevel@tonic-gate pmtab->p_gid = 0; 178*0Sstevel@tonic-gate pmtab->p_dir = "/"; 179*0Sstevel@tonic-gate pmtab->p_ttyflags = 0; 180*0Sstevel@tonic-gate pmtab->p_count = 0; 181*0Sstevel@tonic-gate pmtab->p_server = p_server; 182*0Sstevel@tonic-gate pmtab->p_timeout = 0; 183*0Sstevel@tonic-gate pmtab->p_modules = ""; 184*0Sstevel@tonic-gate pmtab->p_prompt = "login: "; 185*0Sstevel@tonic-gate pmtab->p_dmsg = ""; 186*0Sstevel@tonic-gate pmtab->p_termtype = ""; 187*0Sstevel@tonic-gate pmtab->p_device = ""; 188*0Sstevel@tonic-gate pmtab->p_status = GETTY; 189*0Sstevel@tonic-gate if (strcmp(lastname(argv[0]), "getty") == 0) { 190*0Sstevel@tonic-gate pmtab->p_ttylabel = "300"; 191*0Sstevel@tonic-gate getty_options(argc, argv, pmtab); 192*0Sstevel@tonic-gate } else { 193*0Sstevel@tonic-gate pmtab->p_ttylabel = "9600"; 194*0Sstevel@tonic-gate ttymon_options(argc, argv, pmtab); 195*0Sstevel@tonic-gate } 196*0Sstevel@tonic-gate if ((pmtab->p_device != NULL) && (*(pmtab->p_device) != '\0')) 197*0Sstevel@tonic-gate getty_account(pmtab->p_device); /* utmp accounting */ 198*0Sstevel@tonic-gate return (0); 199*0Sstevel@tonic-gate } 200*0Sstevel@tonic-gate 201*0Sstevel@tonic-gate 202*0Sstevel@tonic-gate /* 203*0Sstevel@tonic-gate * ttymon_options - scan and check args for ttymon express 204*0Sstevel@tonic-gate */ 205*0Sstevel@tonic-gate 206*0Sstevel@tonic-gate static void 207*0Sstevel@tonic-gate ttymon_options(int argc, char **argv, struct pmtab *pmtab) 208*0Sstevel@tonic-gate { 209*0Sstevel@tonic-gate int c; /* option letter */ 210*0Sstevel@tonic-gate char *timeout; 211*0Sstevel@tonic-gate int gflag = 0; /* -g seen */ 212*0Sstevel@tonic-gate int size = 0; 213*0Sstevel@tonic-gate char tbuf[BUFSIZ]; 214*0Sstevel@tonic-gate 215*0Sstevel@tonic-gate extern char *optarg; 216*0Sstevel@tonic-gate extern int optind; 217*0Sstevel@tonic-gate extern void copystr(); 218*0Sstevel@tonic-gate extern char *strsave(); 219*0Sstevel@tonic-gate extern char *getword(); 220*0Sstevel@tonic-gate 221*0Sstevel@tonic-gate while ((c = getopt(argc, argv, "T:gd:ht:p:m:l:")) != -1) { 222*0Sstevel@tonic-gate switch (c) { 223*0Sstevel@tonic-gate case 'g': 224*0Sstevel@tonic-gate gflag = 1; 225*0Sstevel@tonic-gate break; 226*0Sstevel@tonic-gate case 'd': 227*0Sstevel@tonic-gate pmtab->p_device = optarg; 228*0Sstevel@tonic-gate break; 229*0Sstevel@tonic-gate case 'h': 230*0Sstevel@tonic-gate pmtab->p_ttyflags &= ~H_FLAG; 231*0Sstevel@tonic-gate break; 232*0Sstevel@tonic-gate 233*0Sstevel@tonic-gate case 'T': 234*0Sstevel@tonic-gate pmtab->p_termtype = optarg; 235*0Sstevel@tonic-gate break; 236*0Sstevel@tonic-gate /* 237*0Sstevel@tonic-gate * case 'b': 238*0Sstevel@tonic-gate * pmtab->p_ttyflags |= B_FLAG; 239*0Sstevel@tonic-gate * pmtab->p_ttyflags |= R_FLAG; 240*0Sstevel@tonic-gate * break; 241*0Sstevel@tonic-gate */ 242*0Sstevel@tonic-gate case 't': 243*0Sstevel@tonic-gate timeout = optarg; 244*0Sstevel@tonic-gate while (*optarg) { 245*0Sstevel@tonic-gate if (!isdigit(*optarg++)) { 246*0Sstevel@tonic-gate log("Invalid argument for " 247*0Sstevel@tonic-gate "\"-t\" -- number expected."); 248*0Sstevel@tonic-gate usage(); 249*0Sstevel@tonic-gate } 250*0Sstevel@tonic-gate } 251*0Sstevel@tonic-gate pmtab->p_timeout = atoi(timeout); 252*0Sstevel@tonic-gate break; 253*0Sstevel@tonic-gate case 'p': 254*0Sstevel@tonic-gate copystr(tbuf, optarg); 255*0Sstevel@tonic-gate pmtab->p_prompt = strsave(getword(tbuf, &size, TRUE)); 256*0Sstevel@tonic-gate break; 257*0Sstevel@tonic-gate case 'm': 258*0Sstevel@tonic-gate pmtab->p_modules = optarg; 259*0Sstevel@tonic-gate if (vml(pmtab->p_modules) != 0) 260*0Sstevel@tonic-gate usage(); 261*0Sstevel@tonic-gate break; 262*0Sstevel@tonic-gate case 'l': 263*0Sstevel@tonic-gate pmtab->p_ttylabel = optarg; 264*0Sstevel@tonic-gate break; 265*0Sstevel@tonic-gate case '?': 266*0Sstevel@tonic-gate usage(); 267*0Sstevel@tonic-gate break; /*NOTREACHED*/ 268*0Sstevel@tonic-gate } 269*0Sstevel@tonic-gate } 270*0Sstevel@tonic-gate if (optind < argc) 271*0Sstevel@tonic-gate usage(); 272*0Sstevel@tonic-gate 273*0Sstevel@tonic-gate if (!gflag) 274*0Sstevel@tonic-gate usage(); 275*0Sstevel@tonic-gate } 276*0Sstevel@tonic-gate 277*0Sstevel@tonic-gate /* 278*0Sstevel@tonic-gate * usage - print out a usage message 279*0Sstevel@tonic-gate */ 280*0Sstevel@tonic-gate 281*0Sstevel@tonic-gate static void 282*0Sstevel@tonic-gate usage() 283*0Sstevel@tonic-gate { 284*0Sstevel@tonic-gate char *umsg = "Usage: ttymon\n ttymon -g [-h] [-d device] " 285*0Sstevel@tonic-gate "[-l ttylabel] [-t timeout] [-p prompt] [-m modules]\n"; 286*0Sstevel@tonic-gate 287*0Sstevel@tonic-gate if (isatty(STDERR_FILENO)) 288*0Sstevel@tonic-gate (void) fprintf(stderr, "%s", umsg); 289*0Sstevel@tonic-gate else 290*0Sstevel@tonic-gate cons_printf(umsg); 291*0Sstevel@tonic-gate exit(1); 292*0Sstevel@tonic-gate } 293*0Sstevel@tonic-gate 294*0Sstevel@tonic-gate /* 295*0Sstevel@tonic-gate * getty_options - this is cut from getty.c 296*0Sstevel@tonic-gate * - it scan getty cmd args 297*0Sstevel@tonic-gate * - modification is made to stuff args in pmtab 298*0Sstevel@tonic-gate */ 299*0Sstevel@tonic-gate static void 300*0Sstevel@tonic-gate getty_options(argc, argv, pmtab) 301*0Sstevel@tonic-gate int argc; 302*0Sstevel@tonic-gate char **argv; 303*0Sstevel@tonic-gate struct pmtab *pmtab; 304*0Sstevel@tonic-gate { 305*0Sstevel@tonic-gate char *ptr; 306*0Sstevel@tonic-gate 307*0Sstevel@tonic-gate /* 308*0Sstevel@tonic-gate * the pre-4.0 getty's hang_up_line() is a no-op. 309*0Sstevel@tonic-gate * For compatibility, H_FLAG cannot be set for this "getty". 310*0Sstevel@tonic-gate */ 311*0Sstevel@tonic-gate pmtab->p_ttyflags &= ~(H_FLAG); 312*0Sstevel@tonic-gate 313*0Sstevel@tonic-gate while (--argc && **++argv == '-') { 314*0Sstevel@tonic-gate for (ptr = *argv + 1; *ptr; ptr++) 315*0Sstevel@tonic-gate switch (*ptr) { 316*0Sstevel@tonic-gate case 'h': 317*0Sstevel@tonic-gate break; 318*0Sstevel@tonic-gate case 't': 319*0Sstevel@tonic-gate if (isdigit(*++ptr)) { 320*0Sstevel@tonic-gate (void) sscanf(ptr, "%d", &(pmtab->p_timeout)); 321*0Sstevel@tonic-gate while (isdigit(*++ptr)); 322*0Sstevel@tonic-gate ptr--; 323*0Sstevel@tonic-gate } else if (--argc) { 324*0Sstevel@tonic-gate if (isdigit(*(ptr = *++argv))) 325*0Sstevel@tonic-gate (void) sscanf(ptr, "%d", 326*0Sstevel@tonic-gate &(pmtab->p_timeout)); 327*0Sstevel@tonic-gate else { 328*0Sstevel@tonic-gate log("getty: timeout argument <%s> " 329*0Sstevel@tonic-gate "invalid", *argv); 330*0Sstevel@tonic-gate exit(1); 331*0Sstevel@tonic-gate } 332*0Sstevel@tonic-gate } 333*0Sstevel@tonic-gate break; 334*0Sstevel@tonic-gate 335*0Sstevel@tonic-gate case 'c': 336*0Sstevel@tonic-gate log("Use \"sttydefs -l\" to check /etc/ttydefs."); 337*0Sstevel@tonic-gate exit(0); 338*0Sstevel@tonic-gate default: 339*0Sstevel@tonic-gate break; 340*0Sstevel@tonic-gate } 341*0Sstevel@tonic-gate } 342*0Sstevel@tonic-gate 343*0Sstevel@tonic-gate if (argc < 1) { 344*0Sstevel@tonic-gate log("getty: no terminal line specified."); 345*0Sstevel@tonic-gate exit(1); 346*0Sstevel@tonic-gate } else { 347*0Sstevel@tonic-gate (void) strcat(devbuf, "/dev/"); 348*0Sstevel@tonic-gate (void) strcat(devbuf, *argv); 349*0Sstevel@tonic-gate pmtab->p_device = devbuf; 350*0Sstevel@tonic-gate } 351*0Sstevel@tonic-gate 352*0Sstevel@tonic-gate if (--argc > 0) { 353*0Sstevel@tonic-gate pmtab->p_ttylabel = *++argv; 354*0Sstevel@tonic-gate } 355*0Sstevel@tonic-gate 356*0Sstevel@tonic-gate /* 357*0Sstevel@tonic-gate * every thing after this will be ignored 358*0Sstevel@tonic-gate * i.e. termtype and linedisc are ignored 359*0Sstevel@tonic-gate */ 360*0Sstevel@tonic-gate } 361*0Sstevel@tonic-gate 362*0Sstevel@tonic-gate /* 363*0Sstevel@tonic-gate * find_ttyname(fd) - find the name of device associated with fd. 364*0Sstevel@tonic-gate * - it first tries utmpx to see if an entry exists 365*0Sstevel@tonic-gate * - with my pid and ut_line is defined. If ut_line 366*0Sstevel@tonic-gate * - is defined, it will see if the major and minor 367*0Sstevel@tonic-gate * - number of fd and devname from utmpx match. 368*0Sstevel@tonic-gate * - If utmpx search fails, ttyname(fd) will be called. 369*0Sstevel@tonic-gate */ 370*0Sstevel@tonic-gate static char * 371*0Sstevel@tonic-gate find_ttyname(fd) 372*0Sstevel@tonic-gate int fd; 373*0Sstevel@tonic-gate { 374*0Sstevel@tonic-gate pid_t ownpid; 375*0Sstevel@tonic-gate struct utmpx *u; 376*0Sstevel@tonic-gate static struct stat statf, statu; 377*0Sstevel@tonic-gate static char buf[BUFSIZ]; 378*0Sstevel@tonic-gate 379*0Sstevel@tonic-gate ownpid = getpid(); 380*0Sstevel@tonic-gate setutxent(); 381*0Sstevel@tonic-gate while ((u = getutxent()) != NULL) { 382*0Sstevel@tonic-gate if (u->ut_pid == ownpid) { 383*0Sstevel@tonic-gate if (strlen(u->ut_line) != 0) { 384*0Sstevel@tonic-gate if (*(u->ut_line) != '/') { 385*0Sstevel@tonic-gate (void) strcpy(buf, "/dev/"); 386*0Sstevel@tonic-gate (void) strncat(buf, u->ut_line, 387*0Sstevel@tonic-gate sizeof (u->ut_line)); 388*0Sstevel@tonic-gate } else { 389*0Sstevel@tonic-gate (void) strncat(buf, u->ut_line, 390*0Sstevel@tonic-gate sizeof (u->ut_line)); 391*0Sstevel@tonic-gate } 392*0Sstevel@tonic-gate } 393*0Sstevel@tonic-gate else 394*0Sstevel@tonic-gate u = NULL; 395*0Sstevel@tonic-gate break; 396*0Sstevel@tonic-gate } 397*0Sstevel@tonic-gate } 398*0Sstevel@tonic-gate endutxent(); 399*0Sstevel@tonic-gate if ((u != NULL) && 400*0Sstevel@tonic-gate (fstat(fd, &statf) == 0) && 401*0Sstevel@tonic-gate (stat(buf, &statu) == 0) && 402*0Sstevel@tonic-gate (statf.st_dev == statu.st_dev) && 403*0Sstevel@tonic-gate (statf.st_rdev == statu.st_rdev)) { 404*0Sstevel@tonic-gate #ifdef DEBUG 405*0Sstevel@tonic-gate debug("ttymon_express: find device name from utmpx."); 406*0Sstevel@tonic-gate #endif 407*0Sstevel@tonic-gate return (buf); 408*0Sstevel@tonic-gate } else { 409*0Sstevel@tonic-gate #ifdef DEBUG 410*0Sstevel@tonic-gate debug("ttymon_express: calling ttyname to find device name."); 411*0Sstevel@tonic-gate #endif 412*0Sstevel@tonic-gate return (ttyname(fd)); 413*0Sstevel@tonic-gate } 414*0Sstevel@tonic-gate } 415*0Sstevel@tonic-gate 416*0Sstevel@tonic-gate /* 417*0Sstevel@tonic-gate * Revoke all access to a device node and make sure that there are 418*0Sstevel@tonic-gate * no interposed streams devices attached. Must be called before a 419*0Sstevel@tonic-gate * device is actually opened. 420*0Sstevel@tonic-gate * When fdetach is called, the underlying device node is revealed; it 421*0Sstevel@tonic-gate * will have the previous owner and that owner can re-attach; so we 422*0Sstevel@tonic-gate * retry until we win. 423*0Sstevel@tonic-gate * Ignore non-existent devices. 424*0Sstevel@tonic-gate */ 425*0Sstevel@tonic-gate void 426*0Sstevel@tonic-gate revokedevaccess(char *dev, uid_t uid, gid_t gid, mode_t mode) 427*0Sstevel@tonic-gate { 428*0Sstevel@tonic-gate do { 429*0Sstevel@tonic-gate if (chown(dev, uid, gid) == -1) 430*0Sstevel@tonic-gate return; 431*0Sstevel@tonic-gate } while (fdetach(dev) == 0); 432*0Sstevel@tonic-gate 433*0Sstevel@tonic-gate /* Remove ACLs */ 434*0Sstevel@tonic-gate if (acl(dev, GETACLCNT, 0, NULL) > MIN_ACL_ENTRIES) { 435*0Sstevel@tonic-gate aclent_t acls[3]; 436*0Sstevel@tonic-gate 437*0Sstevel@tonic-gate acls[0].a_type = USER_OBJ; 438*0Sstevel@tonic-gate acls[0].a_id = uid; 439*0Sstevel@tonic-gate acls[0].a_perm = 0; 440*0Sstevel@tonic-gate 441*0Sstevel@tonic-gate acls[1].a_type = GROUP_OBJ; 442*0Sstevel@tonic-gate acls[1].a_id = gid; 443*0Sstevel@tonic-gate acls[1].a_perm = 0; 444*0Sstevel@tonic-gate 445*0Sstevel@tonic-gate acls[2].a_type = OTHER_OBJ; 446*0Sstevel@tonic-gate acls[2].a_id = 0; 447*0Sstevel@tonic-gate acls[2].a_perm = 0; 448*0Sstevel@tonic-gate 449*0Sstevel@tonic-gate (void) acl(dev, SETACL, 3, acls); 450*0Sstevel@tonic-gate } 451*0Sstevel@tonic-gate 452*0Sstevel@tonic-gate (void) chmod(dev, mode); 453*0Sstevel@tonic-gate } 454