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 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 23*0Sstevel@tonic-gate /* All Rights Reserved */ 24*0Sstevel@tonic-gate 25*0Sstevel@tonic-gate 26*0Sstevel@tonic-gate /* 27*0Sstevel@tonic-gate * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 28*0Sstevel@tonic-gate * Use is subject to license terms. 29*0Sstevel@tonic-gate */ 30*0Sstevel@tonic-gate 31*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 32*0Sstevel@tonic-gate 33*0Sstevel@tonic-gate #include <dial.h> 34*0Sstevel@tonic-gate 35*0Sstevel@tonic-gate #include <stdlib.h> 36*0Sstevel@tonic-gate #include "limits.h" 37*0Sstevel@tonic-gate #include "stdarg.h" 38*0Sstevel@tonic-gate #include "wait.h" 39*0Sstevel@tonic-gate #include "dial.h" 40*0Sstevel@tonic-gate #include "lpsched.h" 41*0Sstevel@tonic-gate #include <syslog.h> 42*0Sstevel@tonic-gate #include <pwd.h> 43*0Sstevel@tonic-gate 44*0Sstevel@tonic-gate #define Done(EC,ERRNO) done(((EC) << 8),ERRNO) 45*0Sstevel@tonic-gate 46*0Sstevel@tonic-gate #define STRLCAT(dst, src, size) \ 47*0Sstevel@tonic-gate if (strlcat((dst), (src), (size)) >= (size)) { \ 48*0Sstevel@tonic-gate errno = EINVAL; \ 49*0Sstevel@tonic-gate return (-1); \ 50*0Sstevel@tonic-gate } 51*0Sstevel@tonic-gate 52*0Sstevel@tonic-gate static MESG * ChildMd; 53*0Sstevel@tonic-gate 54*0Sstevel@tonic-gate static int ChildPid; 55*0Sstevel@tonic-gate static int WaitedChildPid; 56*0Sstevel@tonic-gate static int slot; 57*0Sstevel@tonic-gate static int do_undial; 58*0Sstevel@tonic-gate 59*0Sstevel@tonic-gate static char argbuf[ARG_MAX]; 60*0Sstevel@tonic-gate 61*0Sstevel@tonic-gate static long key; 62*0Sstevel@tonic-gate 63*0Sstevel@tonic-gate static void sigtrap ( int ); 64*0Sstevel@tonic-gate static void done ( int , int ); 65*0Sstevel@tonic-gate static void cool_heels ( void ); 66*0Sstevel@tonic-gate static void addenv (char ***envp, char * , char * ); 67*0Sstevel@tonic-gate static void trap_fault_signals ( void ); 68*0Sstevel@tonic-gate static void ignore_fault_signals ( void ); 69*0Sstevel@tonic-gate static void child_mallocfail ( void ); 70*0Sstevel@tonic-gate static void Fork2 ( void ); 71*0Sstevel@tonic-gate 72*0Sstevel@tonic-gate static int Fork1 ( EXEC * ); 73*0Sstevel@tonic-gate 74*0Sstevel@tonic-gate static void 75*0Sstevel@tonic-gate relock(void) 76*0Sstevel@tonic-gate { 77*0Sstevel@tonic-gate struct flock l; 78*0Sstevel@tonic-gate 79*0Sstevel@tonic-gate l.l_type = F_WRLCK; 80*0Sstevel@tonic-gate l.l_whence = 1; 81*0Sstevel@tonic-gate l.l_start = 0; 82*0Sstevel@tonic-gate l.l_len = 0; 83*0Sstevel@tonic-gate (void)Fcntl (lock_fd, F_SETLK, &l); 84*0Sstevel@tonic-gate return; 85*0Sstevel@tonic-gate } 86*0Sstevel@tonic-gate 87*0Sstevel@tonic-gate static char *_exec_name(int type) 88*0Sstevel@tonic-gate { 89*0Sstevel@tonic-gate static char *_names[] = { 90*0Sstevel@tonic-gate "", "EX_INTERF", "EX_SLOWF", "EX_ALERT", "EX_FALERT", "EX_PALERT", 91*0Sstevel@tonic-gate "EX_NOTIFY", "EX_FAULT_MESSAGE", "EX_FORM_MESSAGE", NULL }; 92*0Sstevel@tonic-gate 93*0Sstevel@tonic-gate if ((type < 0) || (type > EX_FORM_MESSAGE)) 94*0Sstevel@tonic-gate return ("BAD_EXEC_TYPE"); 95*0Sstevel@tonic-gate else 96*0Sstevel@tonic-gate return (_names[type]); 97*0Sstevel@tonic-gate } 98*0Sstevel@tonic-gate 99*0Sstevel@tonic-gate /* 100*0Sstevel@tonic-gate * This function replaces characters in a string that might be used 101*0Sstevel@tonic-gate * to exploit a security hole. Replace command seperators (`, &, ;, |, ^), 102*0Sstevel@tonic-gate * output redirection (>, |), variable expansion ($), and character 103*0Sstevel@tonic-gate * escape (\). 104*0Sstevel@tonic-gate * 105*0Sstevel@tonic-gate * Bugid 4141687 106*0Sstevel@tonic-gate * Add ( ) < * ? [ 107*0Sstevel@tonic-gate * Bugid 4139071 108*0Sstevel@tonic-gate * Remove \ 109*0Sstevel@tonic-gate */ 110*0Sstevel@tonic-gate void clean_string(char *ptr) 111*0Sstevel@tonic-gate { 112*0Sstevel@tonic-gate char *cp; 113*0Sstevel@tonic-gate wchar_t wc; 114*0Sstevel@tonic-gate size_t len; 115*0Sstevel@tonic-gate 116*0Sstevel@tonic-gate for (cp = ptr; *cp != NULL; ) { 117*0Sstevel@tonic-gate if ((len = mbtowc(&wc, cp, MB_CUR_MAX)) == -1) { 118*0Sstevel@tonic-gate cp++; 119*0Sstevel@tonic-gate continue; 120*0Sstevel@tonic-gate } 121*0Sstevel@tonic-gate 122*0Sstevel@tonic-gate if (len == 1 && 123*0Sstevel@tonic-gate ((wc == L'`') || (wc == L'&') || (wc == L';') || 124*0Sstevel@tonic-gate (wc == L'|') || (wc == L'>') || (wc == L'^') || 125*0Sstevel@tonic-gate (wc == L'$') || (wc == L'(') || (wc == L')') || 126*0Sstevel@tonic-gate (wc == L'<') || (wc == L'*') || (wc == L'?') || 127*0Sstevel@tonic-gate (wc == L'['))) 128*0Sstevel@tonic-gate *cp = '_'; 129*0Sstevel@tonic-gate cp += len; 130*0Sstevel@tonic-gate } 131*0Sstevel@tonic-gate } 132*0Sstevel@tonic-gate 133*0Sstevel@tonic-gate enum trust {TRUSTED, UNTRUSTED}; 134*0Sstevel@tonic-gate static char * 135*0Sstevel@tonic-gate arg_string(enum trust type, char *fmt, ...) 136*0Sstevel@tonic-gate { 137*0Sstevel@tonic-gate char buf[BUFSIZ]; 138*0Sstevel@tonic-gate va_list args; 139*0Sstevel@tonic-gate 140*0Sstevel@tonic-gate va_start(args, fmt); 141*0Sstevel@tonic-gate (void) vsnprintf(buf, sizeof(buf), fmt, args); 142*0Sstevel@tonic-gate va_end(args); 143*0Sstevel@tonic-gate 144*0Sstevel@tonic-gate /* 145*0Sstevel@tonic-gate * If the string contains data from an untrusted origin (user supplied), 146*0Sstevel@tonic-gate * clean it up in case one of our progeny is a shell script and isn't 147*0Sstevel@tonic-gate * careful about checking its input. 148*0Sstevel@tonic-gate */ 149*0Sstevel@tonic-gate if (type == UNTRUSTED) 150*0Sstevel@tonic-gate clean_string(buf); 151*0Sstevel@tonic-gate 152*0Sstevel@tonic-gate return (strdup(buf)); 153*0Sstevel@tonic-gate } 154*0Sstevel@tonic-gate 155*0Sstevel@tonic-gate /* stolen from libc/gen/port/gen/execvp.c */ 156*0Sstevel@tonic-gate static const char * 157*0Sstevel@tonic-gate execat(const char *s1, const char *s2, char *si) 158*0Sstevel@tonic-gate { 159*0Sstevel@tonic-gate char *s; 160*0Sstevel@tonic-gate int cnt = PATH_MAX + 1; /* number of characters in s2 */ 161*0Sstevel@tonic-gate 162*0Sstevel@tonic-gate s = si; 163*0Sstevel@tonic-gate while (*s1 && *s1 != ':') { 164*0Sstevel@tonic-gate if (cnt > 0) { 165*0Sstevel@tonic-gate *s++ = *s1++; 166*0Sstevel@tonic-gate cnt--; 167*0Sstevel@tonic-gate } else 168*0Sstevel@tonic-gate s1++; 169*0Sstevel@tonic-gate } 170*0Sstevel@tonic-gate if (si != s && cnt > 0) { 171*0Sstevel@tonic-gate *s++ = '/'; 172*0Sstevel@tonic-gate cnt--; 173*0Sstevel@tonic-gate } 174*0Sstevel@tonic-gate while (*s2 && cnt > 0) { 175*0Sstevel@tonic-gate *s++ = *s2++; 176*0Sstevel@tonic-gate cnt--; 177*0Sstevel@tonic-gate } 178*0Sstevel@tonic-gate *s = '\0'; 179*0Sstevel@tonic-gate return (*s1 ? ++s1: 0); 180*0Sstevel@tonic-gate } 181*0Sstevel@tonic-gate 182*0Sstevel@tonic-gate /* 183*0Sstevel@tonic-gate * Similiar to execvp(), execpt you can supply an environment and we always 184*0Sstevel@tonic-gate * use /bin/sh for shell scripts. The PATH searched is the PATH in the 185*0Sstevel@tonic-gate * current environment, not the environment in the argument list. 186*0Sstevel@tonic-gate * This was pretty much stolen from libc/gen/port/execvp.c 187*0Sstevel@tonic-gate */ 188*0Sstevel@tonic-gate static int 189*0Sstevel@tonic-gate execvpe(char *name, char *const argv[], char *const envp[]) 190*0Sstevel@tonic-gate { 191*0Sstevel@tonic-gate char *path; 192*0Sstevel@tonic-gate char fname[PATH_MAX+2]; 193*0Sstevel@tonic-gate char *newargs[256]; 194*0Sstevel@tonic-gate int i; 195*0Sstevel@tonic-gate const char *cp; 196*0Sstevel@tonic-gate unsigned etxtbsy = 1; 197*0Sstevel@tonic-gate int eacces = 0; 198*0Sstevel@tonic-gate 199*0Sstevel@tonic-gate if (*name == '\0') { 200*0Sstevel@tonic-gate errno = ENOENT; 201*0Sstevel@tonic-gate return (-1); 202*0Sstevel@tonic-gate } 203*0Sstevel@tonic-gate 204*0Sstevel@tonic-gate if ((path = getenv("PATH")) == NULL) 205*0Sstevel@tonic-gate path = "/usr/bin:/bin"; 206*0Sstevel@tonic-gate 207*0Sstevel@tonic-gate cp = strchr(name, '/')? (const char *)"": path; 208*0Sstevel@tonic-gate 209*0Sstevel@tonic-gate do { 210*0Sstevel@tonic-gate cp = execat(cp, name, fname); 211*0Sstevel@tonic-gate retry: 212*0Sstevel@tonic-gate /* 213*0Sstevel@tonic-gate * 4025035 and 4038378 214*0Sstevel@tonic-gate * if a filename begins with a "-" prepend "./" so that 215*0Sstevel@tonic-gate * the shell can't interpret it as an option 216*0Sstevel@tonic-gate */ 217*0Sstevel@tonic-gate if (*fname == '-') { 218*0Sstevel@tonic-gate size_t size = strlen(fname) + 1; 219*0Sstevel@tonic-gate if ((size + 2) > sizeof (fname)) { 220*0Sstevel@tonic-gate errno = E2BIG; 221*0Sstevel@tonic-gate return (-1); 222*0Sstevel@tonic-gate } 223*0Sstevel@tonic-gate (void) memmove(fname + 2, fname, size); 224*0Sstevel@tonic-gate fname[0] = '.'; 225*0Sstevel@tonic-gate fname[1] = '/'; 226*0Sstevel@tonic-gate } 227*0Sstevel@tonic-gate (void) execve(fname, argv, envp); 228*0Sstevel@tonic-gate switch (errno) { 229*0Sstevel@tonic-gate case ENOEXEC: 230*0Sstevel@tonic-gate newargs[0] = "sh"; 231*0Sstevel@tonic-gate newargs[1] = fname; 232*0Sstevel@tonic-gate for (i = 1; (newargs[i + 1] = argv[i]) != NULL; ++i) { 233*0Sstevel@tonic-gate if (i >= 254) { 234*0Sstevel@tonic-gate errno = E2BIG; 235*0Sstevel@tonic-gate return (-1); 236*0Sstevel@tonic-gate } 237*0Sstevel@tonic-gate } 238*0Sstevel@tonic-gate (void) execve("/bin/sh", newargs, envp); 239*0Sstevel@tonic-gate return (-1); 240*0Sstevel@tonic-gate case ETXTBSY: 241*0Sstevel@tonic-gate if (++etxtbsy > 5) 242*0Sstevel@tonic-gate return (-1); 243*0Sstevel@tonic-gate (void) sleep(etxtbsy); 244*0Sstevel@tonic-gate goto retry; 245*0Sstevel@tonic-gate case EACCES: 246*0Sstevel@tonic-gate ++eacces; 247*0Sstevel@tonic-gate break; 248*0Sstevel@tonic-gate case ENOMEM: 249*0Sstevel@tonic-gate case E2BIG: 250*0Sstevel@tonic-gate case EFAULT: 251*0Sstevel@tonic-gate return (-1); 252*0Sstevel@tonic-gate } 253*0Sstevel@tonic-gate } while (cp); 254*0Sstevel@tonic-gate if (eacces) 255*0Sstevel@tonic-gate errno = EACCES; 256*0Sstevel@tonic-gate return (-1); 257*0Sstevel@tonic-gate } 258*0Sstevel@tonic-gate 259*0Sstevel@tonic-gate static char time_buf[50]; 260*0Sstevel@tonic-gate /** 261*0Sstevel@tonic-gate ** exec() - FORK AND EXEC CHILD PROCESS 262*0Sstevel@tonic-gate **/ 263*0Sstevel@tonic-gate 264*0Sstevel@tonic-gate /*VARARGS1*/ 265*0Sstevel@tonic-gate int 266*0Sstevel@tonic-gate exec(int type, ...) 267*0Sstevel@tonic-gate { 268*0Sstevel@tonic-gate va_list args; 269*0Sstevel@tonic-gate 270*0Sstevel@tonic-gate int i; 271*0Sstevel@tonic-gate int procuid; 272*0Sstevel@tonic-gate int procgid; 273*0Sstevel@tonic-gate int ret; 274*0Sstevel@tonic-gate int fr_flg; 275*0Sstevel@tonic-gate 276*0Sstevel@tonic-gate char *cp; 277*0Sstevel@tonic-gate char *infile; 278*0Sstevel@tonic-gate char *outfile; 279*0Sstevel@tonic-gate char *errfile; 280*0Sstevel@tonic-gate char *sep; 281*0Sstevel@tonic-gate 282*0Sstevel@tonic-gate char **listp; 283*0Sstevel@tonic-gate char **file_list; 284*0Sstevel@tonic-gate char *printerName; 285*0Sstevel@tonic-gate char *printerNameToShow; 286*0Sstevel@tonic-gate static char nameBuf[100]; 287*0Sstevel@tonic-gate char *clean_title; 288*0Sstevel@tonic-gate 289*0Sstevel@tonic-gate PSTATUS *printer; 290*0Sstevel@tonic-gate 291*0Sstevel@tonic-gate RSTATUS *request; 292*0Sstevel@tonic-gate 293*0Sstevel@tonic-gate FSTATUS *form; 294*0Sstevel@tonic-gate 295*0Sstevel@tonic-gate EXEC *ep; 296*0Sstevel@tonic-gate 297*0Sstevel@tonic-gate PWSTATUS *pwheel; 298*0Sstevel@tonic-gate time_t now; 299*0Sstevel@tonic-gate struct passwd *pwp; 300*0Sstevel@tonic-gate #ifdef LP_USE_PAPI_ATTR 301*0Sstevel@tonic-gate struct stat tmpBuf; 302*0Sstevel@tonic-gate char tmpName[BUFSIZ]; 303*0Sstevel@tonic-gate char *path = NULL; 304*0Sstevel@tonic-gate #endif 305*0Sstevel@tonic-gate char *av[ARG_MAX]; 306*0Sstevel@tonic-gate char **envp = NULL; 307*0Sstevel@tonic-gate int ac = 0; 308*0Sstevel@tonic-gate 309*0Sstevel@tonic-gate syslog(LOG_DEBUG, "exec(%s)", _exec_name(type)); 310*0Sstevel@tonic-gate 311*0Sstevel@tonic-gate memset(av, 0, sizeof (*av)); 312*0Sstevel@tonic-gate 313*0Sstevel@tonic-gate va_start (args, type); 314*0Sstevel@tonic-gate 315*0Sstevel@tonic-gate switch (type) { 316*0Sstevel@tonic-gate 317*0Sstevel@tonic-gate case EX_INTERF: 318*0Sstevel@tonic-gate printer = va_arg(args, PSTATUS *); 319*0Sstevel@tonic-gate if (printer->status & PS_REMOTE) { 320*0Sstevel@tonic-gate errno = EINVAL; 321*0Sstevel@tonic-gate return (-1); 322*0Sstevel@tonic-gate } 323*0Sstevel@tonic-gate request = printer->request; 324*0Sstevel@tonic-gate ep = printer->exec; 325*0Sstevel@tonic-gate break; 326*0Sstevel@tonic-gate 327*0Sstevel@tonic-gate case EX_FAULT_MESSAGE: 328*0Sstevel@tonic-gate printer = va_arg(args, PSTATUS *); 329*0Sstevel@tonic-gate request = va_arg(args, RSTATUS *); 330*0Sstevel@tonic-gate if (! ( printer->status & (PS_FORM_FAULT | PS_SHOW_FAULT))) { 331*0Sstevel@tonic-gate return(0); 332*0Sstevel@tonic-gate } 333*0Sstevel@tonic-gate ep = printer->fault_exec; 334*0Sstevel@tonic-gate printerName = (printer->printer && printer->printer->name 335*0Sstevel@tonic-gate ? printer->printer->name : "??"); 336*0Sstevel@tonic-gate snprintf(nameBuf, sizeof (nameBuf), 337*0Sstevel@tonic-gate "%s (on %s)\n", printerName, Local_System); 338*0Sstevel@tonic-gate 339*0Sstevel@tonic-gate printerNameToShow = nameBuf; 340*0Sstevel@tonic-gate 341*0Sstevel@tonic-gate (void) time(&now); 342*0Sstevel@tonic-gate (void) strftime(time_buf, sizeof (time_buf), 343*0Sstevel@tonic-gate NULL, localtime(&now)); 344*0Sstevel@tonic-gate break; 345*0Sstevel@tonic-gate 346*0Sstevel@tonic-gate case EX_SLOWF: 347*0Sstevel@tonic-gate request = va_arg(args, RSTATUS *); 348*0Sstevel@tonic-gate ep = request->exec; 349*0Sstevel@tonic-gate break; 350*0Sstevel@tonic-gate 351*0Sstevel@tonic-gate case EX_NOTIFY: 352*0Sstevel@tonic-gate request = va_arg(args, RSTATUS *); 353*0Sstevel@tonic-gate if (request->request->actions & ACT_NOTIFY) { 354*0Sstevel@tonic-gate errno = EINVAL; 355*0Sstevel@tonic-gate return (-1); 356*0Sstevel@tonic-gate } 357*0Sstevel@tonic-gate ep = request->exec; 358*0Sstevel@tonic-gate break; 359*0Sstevel@tonic-gate 360*0Sstevel@tonic-gate case EX_ALERT: 361*0Sstevel@tonic-gate printer = va_arg(args, PSTATUS *); 362*0Sstevel@tonic-gate if (!(printer->printer->fault_alert.shcmd)) { 363*0Sstevel@tonic-gate errno = EINVAL; 364*0Sstevel@tonic-gate return(-1); 365*0Sstevel@tonic-gate } 366*0Sstevel@tonic-gate ep = printer->alert->exec; 367*0Sstevel@tonic-gate break; 368*0Sstevel@tonic-gate 369*0Sstevel@tonic-gate case EX_PALERT: 370*0Sstevel@tonic-gate pwheel = va_arg(args, PWSTATUS *); 371*0Sstevel@tonic-gate ep = pwheel->alert->exec; 372*0Sstevel@tonic-gate break; 373*0Sstevel@tonic-gate 374*0Sstevel@tonic-gate case EX_FORM_MESSAGE: 375*0Sstevel@tonic-gate (void) time(&now); 376*0Sstevel@tonic-gate (void) strftime(time_buf, sizeof (time_buf), 377*0Sstevel@tonic-gate NULL, localtime(&now)); 378*0Sstevel@tonic-gate 379*0Sstevel@tonic-gate /*FALLTHRU*/ 380*0Sstevel@tonic-gate case EX_FALERT: 381*0Sstevel@tonic-gate form = va_arg(args, FSTATUS *); 382*0Sstevel@tonic-gate ep = form->alert->exec; 383*0Sstevel@tonic-gate break; 384*0Sstevel@tonic-gate 385*0Sstevel@tonic-gate default: 386*0Sstevel@tonic-gate errno = EINVAL; 387*0Sstevel@tonic-gate return(-1); 388*0Sstevel@tonic-gate 389*0Sstevel@tonic-gate } 390*0Sstevel@tonic-gate va_end (args); 391*0Sstevel@tonic-gate 392*0Sstevel@tonic-gate if (!ep || (ep->pid > 0)) { 393*0Sstevel@tonic-gate errno = EBUSY; 394*0Sstevel@tonic-gate return(-1); 395*0Sstevel@tonic-gate } 396*0Sstevel@tonic-gate 397*0Sstevel@tonic-gate ep->flags = 0; 398*0Sstevel@tonic-gate 399*0Sstevel@tonic-gate key = ep->key = getkey(); 400*0Sstevel@tonic-gate slot = ep - Exec_Table; 401*0Sstevel@tonic-gate 402*0Sstevel@tonic-gate switch ((ep->pid = Fork1(ep))) { 403*0Sstevel@tonic-gate 404*0Sstevel@tonic-gate case -1: 405*0Sstevel@tonic-gate relock (); 406*0Sstevel@tonic-gate return(-1); 407*0Sstevel@tonic-gate 408*0Sstevel@tonic-gate case 0: 409*0Sstevel@tonic-gate /* 410*0Sstevel@tonic-gate * We want to be able to tell our parent how we died. 411*0Sstevel@tonic-gate */ 412*0Sstevel@tonic-gate lp_alloc_fail_handler = child_mallocfail; 413*0Sstevel@tonic-gate break; 414*0Sstevel@tonic-gate 415*0Sstevel@tonic-gate default: 416*0Sstevel@tonic-gate switch(type) { 417*0Sstevel@tonic-gate 418*0Sstevel@tonic-gate case EX_INTERF: 419*0Sstevel@tonic-gate request->request->outcome |= RS_PRINTING; 420*0Sstevel@tonic-gate break; 421*0Sstevel@tonic-gate 422*0Sstevel@tonic-gate case EX_NOTIFY: 423*0Sstevel@tonic-gate request->request->outcome |= RS_NOTIFYING; 424*0Sstevel@tonic-gate break; 425*0Sstevel@tonic-gate 426*0Sstevel@tonic-gate case EX_SLOWF: 427*0Sstevel@tonic-gate request->request->outcome |= RS_FILTERING; 428*0Sstevel@tonic-gate request->request->outcome &= ~RS_REFILTER; 429*0Sstevel@tonic-gate break; 430*0Sstevel@tonic-gate 431*0Sstevel@tonic-gate } 432*0Sstevel@tonic-gate return(0); 433*0Sstevel@tonic-gate 434*0Sstevel@tonic-gate } 435*0Sstevel@tonic-gate 436*0Sstevel@tonic-gate for (i = 0; i < NSIG; i++) 437*0Sstevel@tonic-gate (void)signal (i, SIG_DFL); 438*0Sstevel@tonic-gate (void)signal (SIGALRM, SIG_IGN); 439*0Sstevel@tonic-gate (void)signal (SIGTERM, sigtrap); 440*0Sstevel@tonic-gate 441*0Sstevel@tonic-gate for (i = 0; i < OpenMax; i++) 442*0Sstevel@tonic-gate if (i != ChildMd->writefd) 443*0Sstevel@tonic-gate Close (i); 444*0Sstevel@tonic-gate 445*0Sstevel@tonic-gate setpgrp(); 446*0Sstevel@tonic-gate 447*0Sstevel@tonic-gate /* Set a default path */ 448*0Sstevel@tonic-gate addenv (&envp, "PATH", "/usr/lib/lp/bin:/usr/bin:/bin:/usr/sbin:/sbin"); 449*0Sstevel@tonic-gate /* copy locale related variables */ 450*0Sstevel@tonic-gate addenv (&envp, "TZ", getenv("TZ")); 451*0Sstevel@tonic-gate addenv (&envp, "LANG", getenv("LANG")); 452*0Sstevel@tonic-gate addenv (&envp, "LC_ALL", getenv("LC_ALL")); 453*0Sstevel@tonic-gate addenv (&envp, "LC_COLLATE", getenv("LC_COLLATE")); 454*0Sstevel@tonic-gate addenv (&envp, "LC_CTYPE", getenv("LC_CTYPE")); 455*0Sstevel@tonic-gate addenv (&envp, "LC_MESSAGES", getenv("LC_MESSAGES")); 456*0Sstevel@tonic-gate addenv (&envp, "LC_MONETARY", getenv("LC_MONETARY")); 457*0Sstevel@tonic-gate addenv (&envp, "LC_NUMERIC", getenv("LC_NUMERIC")); 458*0Sstevel@tonic-gate addenv (&envp, "LC_TIME", getenv("LC_TIME")); 459*0Sstevel@tonic-gate 460*0Sstevel@tonic-gate sprintf ((cp = BIGGEST_NUMBER_S), "%ld", key); 461*0Sstevel@tonic-gate addenv (&envp, "SPOOLER_KEY", cp); 462*0Sstevel@tonic-gate 463*0Sstevel@tonic-gate #if defined(DEBUG) 464*0Sstevel@tonic-gate addenv (&envp, "LPDEBUG", (debug? "1" : "0")); 465*0Sstevel@tonic-gate #endif 466*0Sstevel@tonic-gate 467*0Sstevel@tonic-gate /* 468*0Sstevel@tonic-gate * Open the standard input, standard output, and standard error. 469*0Sstevel@tonic-gate */ 470*0Sstevel@tonic-gate switch (type) { 471*0Sstevel@tonic-gate 472*0Sstevel@tonic-gate case EX_SLOWF: 473*0Sstevel@tonic-gate case EX_INTERF: 474*0Sstevel@tonic-gate /* 475*0Sstevel@tonic-gate * stdin: /dev/null 476*0Sstevel@tonic-gate * stdout: /dev/null (EX_SLOWF), printer port (EX_INTERF) 477*0Sstevel@tonic-gate * stderr: req# 478*0Sstevel@tonic-gate */ 479*0Sstevel@tonic-gate infile = 0; 480*0Sstevel@tonic-gate outfile = 0; 481*0Sstevel@tonic-gate errfile = makereqerr(request); 482*0Sstevel@tonic-gate break; 483*0Sstevel@tonic-gate 484*0Sstevel@tonic-gate case EX_NOTIFY: 485*0Sstevel@tonic-gate /* 486*0Sstevel@tonic-gate * stdin: req# 487*0Sstevel@tonic-gate * stdout: /dev/null 488*0Sstevel@tonic-gate * stderr: /dev/null 489*0Sstevel@tonic-gate */ 490*0Sstevel@tonic-gate infile = makereqerr(request); 491*0Sstevel@tonic-gate outfile = 0; 492*0Sstevel@tonic-gate errfile = 0; 493*0Sstevel@tonic-gate 494*0Sstevel@tonic-gate break; 495*0Sstevel@tonic-gate 496*0Sstevel@tonic-gate case EX_ALERT: 497*0Sstevel@tonic-gate case EX_FALERT: 498*0Sstevel@tonic-gate case EX_PALERT: 499*0Sstevel@tonic-gate case EX_FAULT_MESSAGE: 500*0Sstevel@tonic-gate case EX_FORM_MESSAGE: 501*0Sstevel@tonic-gate /* 502*0Sstevel@tonic-gate * stdin: /dev/null 503*0Sstevel@tonic-gate * stdout: /dev/null 504*0Sstevel@tonic-gate * stderr: /dev/null 505*0Sstevel@tonic-gate */ 506*0Sstevel@tonic-gate infile = 0; 507*0Sstevel@tonic-gate outfile = 0; 508*0Sstevel@tonic-gate errfile = 0; 509*0Sstevel@tonic-gate break; 510*0Sstevel@tonic-gate 511*0Sstevel@tonic-gate } 512*0Sstevel@tonic-gate 513*0Sstevel@tonic-gate if (infile) { 514*0Sstevel@tonic-gate if (Open(infile, O_RDONLY) == -1) 515*0Sstevel@tonic-gate Done (EXEC_EXIT_NOPEN, errno); 516*0Sstevel@tonic-gate } else { 517*0Sstevel@tonic-gate if (Open("/dev/null", O_RDONLY) == -1) 518*0Sstevel@tonic-gate Done (EXEC_EXIT_NOPEN, errno); 519*0Sstevel@tonic-gate } 520*0Sstevel@tonic-gate 521*0Sstevel@tonic-gate if (outfile) { 522*0Sstevel@tonic-gate if (Open(outfile, O_CREAT|O_TRUNC|O_WRONLY, 0600) == -1) 523*0Sstevel@tonic-gate Done (EXEC_EXIT_NOPEN, errno); 524*0Sstevel@tonic-gate } else { 525*0Sstevel@tonic-gate /* 526*0Sstevel@tonic-gate * If EX_INTERF, this is still needed to cause the 527*0Sstevel@tonic-gate * standard error channel to be #2. 528*0Sstevel@tonic-gate */ 529*0Sstevel@tonic-gate if (Open("/dev/null", O_WRONLY) == -1) 530*0Sstevel@tonic-gate Done (EXEC_EXIT_NOPEN, errno); 531*0Sstevel@tonic-gate } 532*0Sstevel@tonic-gate 533*0Sstevel@tonic-gate if (errfile) { 534*0Sstevel@tonic-gate if (Open(errfile, O_CREAT|O_TRUNC|O_WRONLY, 0600) == -1) 535*0Sstevel@tonic-gate Done (EXEC_EXIT_NOPEN, errno); 536*0Sstevel@tonic-gate } else { 537*0Sstevel@tonic-gate if (Open("/dev/null", O_WRONLY) == -1) 538*0Sstevel@tonic-gate Done (EXEC_EXIT_NOPEN, errno); 539*0Sstevel@tonic-gate } 540*0Sstevel@tonic-gate 541*0Sstevel@tonic-gate switch (type) { 542*0Sstevel@tonic-gate 543*0Sstevel@tonic-gate case EX_INTERF: 544*0Sstevel@tonic-gate /* 545*0Sstevel@tonic-gate * Opening a ``port'' can be dangerous to our health: 546*0Sstevel@tonic-gate * 547*0Sstevel@tonic-gate * - Hangups can occur if the line is dropped. 548*0Sstevel@tonic-gate * - The printer may send an interrupt. 549*0Sstevel@tonic-gate * - A FIFO may be closed, generating SIGPIPE. 550*0Sstevel@tonic-gate * 551*0Sstevel@tonic-gate * We catch these so we can complain nicely. 552*0Sstevel@tonic-gate */ 553*0Sstevel@tonic-gate trap_fault_signals (); 554*0Sstevel@tonic-gate 555*0Sstevel@tonic-gate (void)Close (1); 556*0Sstevel@tonic-gate 557*0Sstevel@tonic-gate if (strchr (request->secure->user, '!')) 558*0Sstevel@tonic-gate { 559*0Sstevel@tonic-gate procuid = Lp_Uid; 560*0Sstevel@tonic-gate procgid = Lp_Gid; 561*0Sstevel@tonic-gate } 562*0Sstevel@tonic-gate else 563*0Sstevel@tonic-gate { 564*0Sstevel@tonic-gate procuid = request->secure->uid; 565*0Sstevel@tonic-gate procgid = request->secure->gid; 566*0Sstevel@tonic-gate } 567*0Sstevel@tonic-gate if (printer->printer->dial_info) 568*0Sstevel@tonic-gate { 569*0Sstevel@tonic-gate ret = open_dialup(request->printer_type, 570*0Sstevel@tonic-gate printer->printer); 571*0Sstevel@tonic-gate if (ret == 0) 572*0Sstevel@tonic-gate do_undial = 1; 573*0Sstevel@tonic-gate } 574*0Sstevel@tonic-gate else 575*0Sstevel@tonic-gate { 576*0Sstevel@tonic-gate ret = open_direct(request->printer_type, 577*0Sstevel@tonic-gate printer->printer); 578*0Sstevel@tonic-gate do_undial = 0; 579*0Sstevel@tonic-gate /* this is a URI */ 580*0Sstevel@tonic-gate if (is_printer_uri(printer->printer->device) == 0) 581*0Sstevel@tonic-gate addenv(&envp, "DEVICE_URI", 582*0Sstevel@tonic-gate printer->printer->device); 583*0Sstevel@tonic-gate } 584*0Sstevel@tonic-gate addenv(&envp, "DEVICE_URI", 585*0Sstevel@tonic-gate printer->printer->device); 586*0Sstevel@tonic-gate if (ret != 0) 587*0Sstevel@tonic-gate Done (ret, errno); 588*0Sstevel@tonic-gate 589*0Sstevel@tonic-gate if (!(request->request->outcome & RS_FILTERED)) 590*0Sstevel@tonic-gate file_list = request->request->file_list; 591*0Sstevel@tonic-gate 592*0Sstevel@tonic-gate else { 593*0Sstevel@tonic-gate register int count = 0; 594*0Sstevel@tonic-gate register char * num = BIGGEST_REQID_S; 595*0Sstevel@tonic-gate register char * prefix; 596*0Sstevel@tonic-gate 597*0Sstevel@tonic-gate prefix = makestr( 598*0Sstevel@tonic-gate Lp_Tmp, 599*0Sstevel@tonic-gate "/", 600*0Sstevel@tonic-gate (request->secure && request->secure->system ? 601*0Sstevel@tonic-gate request->secure->system : Local_System), 602*0Sstevel@tonic-gate "/F", 603*0Sstevel@tonic-gate getreqno(request->secure->req_id), 604*0Sstevel@tonic-gate "-", 605*0Sstevel@tonic-gate (char *)0 606*0Sstevel@tonic-gate ); 607*0Sstevel@tonic-gate 608*0Sstevel@tonic-gate file_list = (char **)Malloc( 609*0Sstevel@tonic-gate (lenlist(request->request->file_list) + 1) 610*0Sstevel@tonic-gate * sizeof(char *) 611*0Sstevel@tonic-gate ); 612*0Sstevel@tonic-gate 613*0Sstevel@tonic-gate for ( 614*0Sstevel@tonic-gate listp = request->request->file_list; 615*0Sstevel@tonic-gate *listp; 616*0Sstevel@tonic-gate listp++ 617*0Sstevel@tonic-gate ) { 618*0Sstevel@tonic-gate sprintf (num, "%d", count + 1); 619*0Sstevel@tonic-gate file_list[count] = makestr( 620*0Sstevel@tonic-gate prefix, 621*0Sstevel@tonic-gate num, 622*0Sstevel@tonic-gate (char *)0 623*0Sstevel@tonic-gate ); 624*0Sstevel@tonic-gate count++; 625*0Sstevel@tonic-gate } 626*0Sstevel@tonic-gate file_list[count] = 0; 627*0Sstevel@tonic-gate } 628*0Sstevel@tonic-gate 629*0Sstevel@tonic-gate #ifdef LP_USE_PAPI_ATTR 630*0Sstevel@tonic-gate /* 631*0Sstevel@tonic-gate * Check if the PAPI job attribute file exists, if it does 632*0Sstevel@tonic-gate * pass the file's pathname to the printer interface script 633*0Sstevel@tonic-gate * in an environment variable. This file is created when 634*0Sstevel@tonic-gate * print jobs are submitted via the PAPI interface. 635*0Sstevel@tonic-gate */ 636*0Sstevel@tonic-gate snprintf(tmpName, sizeof (tmpName), "%s-%s", 637*0Sstevel@tonic-gate getreqno(request->secure->req_id), LP_PAPIATTRNAME); 638*0Sstevel@tonic-gate path = makepath(SPOOLDIR, "temp", tmpName, (char *)0); 639*0Sstevel@tonic-gate if ((path != NULL) && (stat(path, &tmpBuf) == 0)) 640*0Sstevel@tonic-gate { 641*0Sstevel@tonic-gate /* 642*0Sstevel@tonic-gate * IPP job attribute file exists for this job so 643*0Sstevel@tonic-gate * set the environment variable 644*0Sstevel@tonic-gate */ 645*0Sstevel@tonic-gate syslog(LOG_DEBUG, "exec(): ATTRPATH='%s'", path); 646*0Sstevel@tonic-gate addenv(&envp, "ATTRPATH", path); 647*0Sstevel@tonic-gate } 648*0Sstevel@tonic-gate Free(path); 649*0Sstevel@tonic-gate 650*0Sstevel@tonic-gate /* 651*0Sstevel@tonic-gate * now set environment variable for the printer's PostScript 652*0Sstevel@tonic-gate * Printer Description (PPD) file, this is used by the filter 653*0Sstevel@tonic-gate * when forming the print data for this printer. 654*0Sstevel@tonic-gate */ 655*0Sstevel@tonic-gate if ((request->printer != NULL) && 656*0Sstevel@tonic-gate (request->printer->printer != NULL) && 657*0Sstevel@tonic-gate (request->printer->printer->name != NULL)) 658*0Sstevel@tonic-gate { 659*0Sstevel@tonic-gate snprintf(tmpName, sizeof (tmpName), "%s.ppd", 660*0Sstevel@tonic-gate request->printer->printer->name); 661*0Sstevel@tonic-gate path = makepath(ETCDIR, "ppd", tmpName, (char *)0); 662*0Sstevel@tonic-gate if ((path != NULL) && (stat(path, &tmpBuf) == 0)) 663*0Sstevel@tonic-gate { 664*0Sstevel@tonic-gate syslog(LOG_DEBUG, 665*0Sstevel@tonic-gate "exec(): Printer PPD='%s'", path); 666*0Sstevel@tonic-gate addenv(&envp, "PPD", path); 667*0Sstevel@tonic-gate } 668*0Sstevel@tonic-gate Free(path); 669*0Sstevel@tonic-gate } 670*0Sstevel@tonic-gate #endif 671*0Sstevel@tonic-gate 672*0Sstevel@tonic-gate if (request->printer_type) 673*0Sstevel@tonic-gate addenv(&envp, "TERM", request->printer_type); 674*0Sstevel@tonic-gate 675*0Sstevel@tonic-gate if (!(printer->printer->daisy)) { 676*0Sstevel@tonic-gate register char * chset = 0; 677*0Sstevel@tonic-gate register char * csp; 678*0Sstevel@tonic-gate 679*0Sstevel@tonic-gate if ( 680*0Sstevel@tonic-gate request->form 681*0Sstevel@tonic-gate && request->form->form->chset 682*0Sstevel@tonic-gate && request->form->form->mandatory 683*0Sstevel@tonic-gate && !STREQU(NAME_ANY, request->form->form->chset) 684*0Sstevel@tonic-gate ) 685*0Sstevel@tonic-gate chset = request->form->form->chset; 686*0Sstevel@tonic-gate 687*0Sstevel@tonic-gate else if ( 688*0Sstevel@tonic-gate request->request->charset 689*0Sstevel@tonic-gate && !STREQU(NAME_ANY, request->request->charset) 690*0Sstevel@tonic-gate ) 691*0Sstevel@tonic-gate chset = request->request->charset; 692*0Sstevel@tonic-gate 693*0Sstevel@tonic-gate if (chset) { 694*0Sstevel@tonic-gate csp = search_cslist( 695*0Sstevel@tonic-gate chset, 696*0Sstevel@tonic-gate printer->printer->char_sets 697*0Sstevel@tonic-gate ); 698*0Sstevel@tonic-gate 699*0Sstevel@tonic-gate /* 700*0Sstevel@tonic-gate * The "strtok()" below wrecks the string 701*0Sstevel@tonic-gate * for future use, but this is a child 702*0Sstevel@tonic-gate * process where it won't be needed again. 703*0Sstevel@tonic-gate */ 704*0Sstevel@tonic-gate addenv (&envp, "CHARSET", 705*0Sstevel@tonic-gate (csp? strtok(csp, "=") : chset) 706*0Sstevel@tonic-gate ); 707*0Sstevel@tonic-gate } 708*0Sstevel@tonic-gate } 709*0Sstevel@tonic-gate 710*0Sstevel@tonic-gate if (request->fast) 711*0Sstevel@tonic-gate addenv(&envp, "FILTER", request->fast); 712*0Sstevel@tonic-gate 713*0Sstevel@tonic-gate /* 714*0Sstevel@tonic-gate */ 715*0Sstevel@tonic-gate if (strcmp (request->secure->user, request->request->user)) 716*0Sstevel@tonic-gate { 717*0Sstevel@tonic-gate addenv (&envp, "ALIAS_USERNAME", 718*0Sstevel@tonic-gate request->request->user); 719*0Sstevel@tonic-gate } 720*0Sstevel@tonic-gate /* 721*0Sstevel@tonic-gate * Add the system name to the user name (ala system!user) 722*0Sstevel@tonic-gate * unless it is already there. RFS users may have trouble 723*0Sstevel@tonic-gate * here, sorry! 724*0Sstevel@tonic-gate */ 725*0Sstevel@tonic-gate cp = strchr(request->secure->user, '@'); 726*0Sstevel@tonic-gate 727*0Sstevel@tonic-gate allTraysWithForm(printer, request->form); 728*0Sstevel@tonic-gate 729*0Sstevel@tonic-gate /* 730*0Sstevel@tonic-gate * Fix for 4137389 731*0Sstevel@tonic-gate * Remove double quotes from title string. 732*0Sstevel@tonic-gate */ 733*0Sstevel@tonic-gate fr_flg = 1; 734*0Sstevel@tonic-gate clean_title = strdup(NB(request->request->title)); 735*0Sstevel@tonic-gate if (clean_title == NULL) { 736*0Sstevel@tonic-gate /* 737*0Sstevel@tonic-gate * strdup failed. We're probably hosed 738*0Sstevel@tonic-gate * but try setting clean_title 739*0Sstevel@tonic-gate * to original title and continuing. 740*0Sstevel@tonic-gate */ 741*0Sstevel@tonic-gate clean_title = NB(request->request->title); 742*0Sstevel@tonic-gate fr_flg = 0; 743*0Sstevel@tonic-gate } else if (strcmp(clean_title, "") != 0) { 744*0Sstevel@tonic-gate char *ct_p; 745*0Sstevel@tonic-gate 746*0Sstevel@tonic-gate for (ct_p = clean_title; *ct_p != NULL; ct_p++) { 747*0Sstevel@tonic-gate if (*ct_p == '"') 748*0Sstevel@tonic-gate *ct_p = ' '; 749*0Sstevel@tonic-gate } 750*0Sstevel@tonic-gate } 751*0Sstevel@tonic-gate 752*0Sstevel@tonic-gate av[ac++] = arg_string(TRUSTED, "%s/%s", Lp_A_Interfaces, 753*0Sstevel@tonic-gate printer->printer->name); 754*0Sstevel@tonic-gate av[ac++] = arg_string(TRUSTED, "%s", request->secure->req_id); 755*0Sstevel@tonic-gate av[ac++] = arg_string(UNTRUSTED, "%s%s%s", 756*0Sstevel@tonic-gate request->secure->user, 757*0Sstevel@tonic-gate (cp? "" : "@"), 758*0Sstevel@tonic-gate (cp? "" : request->secure->system)); 759*0Sstevel@tonic-gate av[ac++] = arg_string(TRUSTED, "%s", clean_title); 760*0Sstevel@tonic-gate av[ac++] = arg_string(TRUSTED, "%d", request->copies); 761*0Sstevel@tonic-gate 762*0Sstevel@tonic-gate if (fr_flg) 763*0Sstevel@tonic-gate free (clean_title); 764*0Sstevel@tonic-gate 765*0Sstevel@tonic-gate sep = ""; 766*0Sstevel@tonic-gate 767*0Sstevel@tonic-gate /* 768*0Sstevel@tonic-gate * Do the administrator defined key=value pair options 769*0Sstevel@tonic-gate */ 770*0Sstevel@tonic-gate 771*0Sstevel@tonic-gate argbuf[0] = '\0'; 772*0Sstevel@tonic-gate 773*0Sstevel@tonic-gate if (printer->printer->options) { 774*0Sstevel@tonic-gate char **tmp = printer->printer->options; 775*0Sstevel@tonic-gate while(*tmp != NULL) { 776*0Sstevel@tonic-gate STRLCAT(argbuf, sep, sizeof (argbuf)); 777*0Sstevel@tonic-gate sep = " "; 778*0Sstevel@tonic-gate STRLCAT(argbuf, *tmp++, sizeof (argbuf)); 779*0Sstevel@tonic-gate } 780*0Sstevel@tonic-gate } 781*0Sstevel@tonic-gate 782*0Sstevel@tonic-gate /* 783*0Sstevel@tonic-gate * Do the administrator defined ``stty'' stuff before 784*0Sstevel@tonic-gate * the user's -o options, to allow the user to override. 785*0Sstevel@tonic-gate */ 786*0Sstevel@tonic-gate if (printer->printer->stty) { 787*0Sstevel@tonic-gate STRLCAT (argbuf, sep, sizeof (argbuf)); 788*0Sstevel@tonic-gate sep = " "; 789*0Sstevel@tonic-gate STRLCAT (argbuf, "stty='", sizeof (argbuf)); 790*0Sstevel@tonic-gate STRLCAT (argbuf, printer->printer->stty, 791*0Sstevel@tonic-gate sizeof (argbuf)); 792*0Sstevel@tonic-gate STRLCAT (argbuf, "'", sizeof (argbuf)); 793*0Sstevel@tonic-gate } 794*0Sstevel@tonic-gate 795*0Sstevel@tonic-gate /* 796*0Sstevel@tonic-gate * Do all of the user's options except the cpi/lpi/etc. 797*0Sstevel@tonic-gate * stuff, which is done separately. 798*0Sstevel@tonic-gate */ 799*0Sstevel@tonic-gate if (request->request->options) { 800*0Sstevel@tonic-gate listp = dashos(request->request->options); 801*0Sstevel@tonic-gate while (*listp) { 802*0Sstevel@tonic-gate if ( 803*0Sstevel@tonic-gate !STRNEQU(*listp, "cpi=", 4) 804*0Sstevel@tonic-gate && !STRNEQU(*listp, "lpi=", 4) 805*0Sstevel@tonic-gate && !STRNEQU(*listp, "width=", 6) 806*0Sstevel@tonic-gate && !STRNEQU(*listp, "length=", 7) 807*0Sstevel@tonic-gate ) { 808*0Sstevel@tonic-gate STRLCAT (argbuf, sep, sizeof (argbuf)); 809*0Sstevel@tonic-gate sep = " "; 810*0Sstevel@tonic-gate STRLCAT (argbuf, *listp, 811*0Sstevel@tonic-gate sizeof (argbuf)); 812*0Sstevel@tonic-gate } 813*0Sstevel@tonic-gate listp++; 814*0Sstevel@tonic-gate } 815*0Sstevel@tonic-gate } 816*0Sstevel@tonic-gate 817*0Sstevel@tonic-gate /* 818*0Sstevel@tonic-gate * The "pickfilter()" routine (from "validate()") 819*0Sstevel@tonic-gate * stored the cpi/lpi/etc. stuff that should be 820*0Sstevel@tonic-gate * used for this request. It chose form over user, 821*0Sstevel@tonic-gate * and user over printer. 822*0Sstevel@tonic-gate */ 823*0Sstevel@tonic-gate if (request->cpi) { 824*0Sstevel@tonic-gate STRLCAT (argbuf, sep, sizeof (argbuf)); 825*0Sstevel@tonic-gate sep = " "; 826*0Sstevel@tonic-gate STRLCAT (argbuf, "cpi=", sizeof (argbuf)); 827*0Sstevel@tonic-gate STRLCAT (argbuf, request->cpi, sizeof (argbuf)); 828*0Sstevel@tonic-gate } 829*0Sstevel@tonic-gate if (request->lpi) { 830*0Sstevel@tonic-gate STRLCAT (argbuf, sep, sizeof (argbuf)); 831*0Sstevel@tonic-gate sep = " "; 832*0Sstevel@tonic-gate STRLCAT (argbuf, "lpi=", sizeof (argbuf)); 833*0Sstevel@tonic-gate STRLCAT (argbuf, request->lpi, sizeof (argbuf)); 834*0Sstevel@tonic-gate } 835*0Sstevel@tonic-gate if (request->pwid) { 836*0Sstevel@tonic-gate STRLCAT (argbuf, sep, sizeof (argbuf)); 837*0Sstevel@tonic-gate sep = " "; 838*0Sstevel@tonic-gate STRLCAT (argbuf, "width=", sizeof (argbuf)); 839*0Sstevel@tonic-gate STRLCAT (argbuf, request->pwid, sizeof (argbuf)); 840*0Sstevel@tonic-gate } 841*0Sstevel@tonic-gate if (request->plen) { 842*0Sstevel@tonic-gate STRLCAT (argbuf, sep, sizeof (argbuf)); 843*0Sstevel@tonic-gate sep = " "; 844*0Sstevel@tonic-gate STRLCAT (argbuf, "length=", sizeof (argbuf)); 845*0Sstevel@tonic-gate STRLCAT (argbuf, request->plen, sizeof (argbuf)); 846*0Sstevel@tonic-gate } 847*0Sstevel@tonic-gate 848*0Sstevel@tonic-gate /* 849*0Sstevel@tonic-gate * Do the ``raw'' bit last, to ensure it gets 850*0Sstevel@tonic-gate * done. If the user doesn't want this, then he or 851*0Sstevel@tonic-gate * she can do the correct thing using -o stty= 852*0Sstevel@tonic-gate * and leaving out the -r option. 853*0Sstevel@tonic-gate */ 854*0Sstevel@tonic-gate if (request->request->actions & ACT_RAW) { 855*0Sstevel@tonic-gate STRLCAT (argbuf, sep, sizeof (argbuf)); 856*0Sstevel@tonic-gate sep = " "; 857*0Sstevel@tonic-gate STRLCAT (argbuf, "stty=-opost", sizeof (argbuf)); 858*0Sstevel@tonic-gate } 859*0Sstevel@tonic-gate 860*0Sstevel@tonic-gate 861*0Sstevel@tonic-gate /* the "options" */ 862*0Sstevel@tonic-gate av[ac++] = arg_string(UNTRUSTED, "%s", argbuf); 863*0Sstevel@tonic-gate 864*0Sstevel@tonic-gate for (listp = file_list; *listp; listp++) 865*0Sstevel@tonic-gate av[ac++] = arg_string(TRUSTED, "%s", *listp); 866*0Sstevel@tonic-gate 867*0Sstevel@tonic-gate (void)chfiles (file_list, procuid, procgid); 868*0Sstevel@tonic-gate 869*0Sstevel@tonic-gate break; 870*0Sstevel@tonic-gate 871*0Sstevel@tonic-gate 872*0Sstevel@tonic-gate case EX_SLOWF: 873*0Sstevel@tonic-gate if (request->slow) 874*0Sstevel@tonic-gate addenv(&envp, "FILTER", request->slow); 875*0Sstevel@tonic-gate 876*0Sstevel@tonic-gate if (strchr (request->secure->user, '!')) 877*0Sstevel@tonic-gate { 878*0Sstevel@tonic-gate procuid = Lp_Uid; 879*0Sstevel@tonic-gate procgid = Lp_Gid; 880*0Sstevel@tonic-gate } 881*0Sstevel@tonic-gate else 882*0Sstevel@tonic-gate { 883*0Sstevel@tonic-gate procuid = request->secure->uid; 884*0Sstevel@tonic-gate procgid = request->secure->gid; 885*0Sstevel@tonic-gate } 886*0Sstevel@tonic-gate cp = _alloc_files( 887*0Sstevel@tonic-gate lenlist(request->request->file_list), 888*0Sstevel@tonic-gate getreqno(request->secure->req_id), 889*0Sstevel@tonic-gate procuid, 890*0Sstevel@tonic-gate procgid, 891*0Sstevel@tonic-gate (request->secure && request->secure->system ? 892*0Sstevel@tonic-gate request->secure->system : NULL ) 893*0Sstevel@tonic-gate ); 894*0Sstevel@tonic-gate 895*0Sstevel@tonic-gate av[ac++] = arg_string(TRUSTED, "%s", Lp_Slow_Filter); 896*0Sstevel@tonic-gate av[ac++] = arg_string(TRUSTED, "%s/%s/%s", Lp_Tmp, 897*0Sstevel@tonic-gate (request->secure && request->secure->system ? 898*0Sstevel@tonic-gate request->secure->system : Local_System), 899*0Sstevel@tonic-gate cp); 900*0Sstevel@tonic-gate for (listp = request->request->file_list; *listp; listp++) 901*0Sstevel@tonic-gate av[ac++] = arg_string(TRUSTED, "%s", *listp); 902*0Sstevel@tonic-gate 903*0Sstevel@tonic-gate (void)chfiles (request->request->file_list, procuid, procgid); 904*0Sstevel@tonic-gate 905*0Sstevel@tonic-gate #ifdef LP_USE_PAPI_ATTR 906*0Sstevel@tonic-gate /* 907*0Sstevel@tonic-gate * Check if the PAPI job attribute file exists, if it does 908*0Sstevel@tonic-gate * pass the file's pathname to the slow-filters in an 909*0Sstevel@tonic-gate * environment variable. Note: this file is created when 910*0Sstevel@tonic-gate * print jobs are submitted via the PAPI interface. 911*0Sstevel@tonic-gate */ 912*0Sstevel@tonic-gate snprintf(tmpName, sizeof (tmpName), "%s-%s", 913*0Sstevel@tonic-gate getreqno(request->secure->req_id), LP_PAPIATTRNAME); 914*0Sstevel@tonic-gate path = makepath(SPOOLDIR, "temp", tmpName, (char *)0); 915*0Sstevel@tonic-gate if ((path != NULL) && (stat(path, &tmpBuf) == 0)) 916*0Sstevel@tonic-gate { 917*0Sstevel@tonic-gate /* 918*0Sstevel@tonic-gate * IPP job attribute file exists for this job so 919*0Sstevel@tonic-gate * set the environment variable 920*0Sstevel@tonic-gate */ 921*0Sstevel@tonic-gate syslog(LOG_DEBUG, "exec(): ATTRPATH='%s'", path); 922*0Sstevel@tonic-gate addenv(&envp, "ATTRPATH", path); 923*0Sstevel@tonic-gate } 924*0Sstevel@tonic-gate Free(path); 925*0Sstevel@tonic-gate 926*0Sstevel@tonic-gate 927*0Sstevel@tonic-gate /* 928*0Sstevel@tonic-gate * now set environment variable for the printer's PostScript 929*0Sstevel@tonic-gate * Printer Description (PPD) file, this is used by the filter 930*0Sstevel@tonic-gate * when forming the print data for this printer. 931*0Sstevel@tonic-gate */ 932*0Sstevel@tonic-gate if ((request->printer != NULL) && 933*0Sstevel@tonic-gate (request->printer->printer != NULL) && 934*0Sstevel@tonic-gate (request->printer->printer->name != NULL)) 935*0Sstevel@tonic-gate { 936*0Sstevel@tonic-gate snprintf(tmpName, sizeof (tmpName), "%s.ppd", 937*0Sstevel@tonic-gate request->printer->printer->name); 938*0Sstevel@tonic-gate path = makepath(ETCDIR, "ppd", tmpName, (char *)0); 939*0Sstevel@tonic-gate if ((path != NULL) && (stat(path, &tmpBuf) == 0)) 940*0Sstevel@tonic-gate { 941*0Sstevel@tonic-gate syslog(LOG_DEBUG, 942*0Sstevel@tonic-gate "exec(): Printer PPD='%s'", path); 943*0Sstevel@tonic-gate addenv(&envp, "PPD", path); 944*0Sstevel@tonic-gate } 945*0Sstevel@tonic-gate Free(path); 946*0Sstevel@tonic-gate } 947*0Sstevel@tonic-gate #endif 948*0Sstevel@tonic-gate break; 949*0Sstevel@tonic-gate 950*0Sstevel@tonic-gate case EX_ALERT: 951*0Sstevel@tonic-gate procuid = Lp_Uid; 952*0Sstevel@tonic-gate procgid = Lp_Gid; 953*0Sstevel@tonic-gate (void)Chown (printer->alert->msgfile, procuid, procgid); 954*0Sstevel@tonic-gate 955*0Sstevel@tonic-gate av[ac++] = arg_string(TRUSTED, "%s/%s/%s", Lp_A_Printers, 956*0Sstevel@tonic-gate printer->printer->name, ALERTSHFILE); 957*0Sstevel@tonic-gate av[ac++] = arg_string(TRUSTED, "%s", printer->alert->msgfile); 958*0Sstevel@tonic-gate 959*0Sstevel@tonic-gate break; 960*0Sstevel@tonic-gate 961*0Sstevel@tonic-gate case EX_PALERT: 962*0Sstevel@tonic-gate procuid = Lp_Uid; 963*0Sstevel@tonic-gate procgid = Lp_Gid; 964*0Sstevel@tonic-gate (void)Chown (pwheel->alert->msgfile, procuid, procgid); 965*0Sstevel@tonic-gate 966*0Sstevel@tonic-gate av[ac++] = arg_string(TRUSTED, "%s/%s/%s", Lp_A_PrintWheels, 967*0Sstevel@tonic-gate pwheel->pwheel->name, ALERTSHFILE); 968*0Sstevel@tonic-gate av[ac++] = arg_string(TRUSTED, "%s", printer->alert->msgfile); 969*0Sstevel@tonic-gate 970*0Sstevel@tonic-gate break; 971*0Sstevel@tonic-gate 972*0Sstevel@tonic-gate case EX_FALERT: 973*0Sstevel@tonic-gate procuid = Lp_Uid; 974*0Sstevel@tonic-gate procgid = Lp_Gid; 975*0Sstevel@tonic-gate (void)Chown (form->alert->msgfile, procuid, procgid); 976*0Sstevel@tonic-gate 977*0Sstevel@tonic-gate av[ac++] = arg_string(TRUSTED, "%s/%s/%s", Lp_A_Forms, 978*0Sstevel@tonic-gate form->form->name, ALERTSHFILE); 979*0Sstevel@tonic-gate av[ac++] = arg_string(TRUSTED, "%s", printer->alert->msgfile); 980*0Sstevel@tonic-gate 981*0Sstevel@tonic-gate break; 982*0Sstevel@tonic-gate 983*0Sstevel@tonic-gate case EX_FORM_MESSAGE: 984*0Sstevel@tonic-gate procuid = Lp_Uid; 985*0Sstevel@tonic-gate procgid = Lp_Gid; 986*0Sstevel@tonic-gate 987*0Sstevel@tonic-gate av[ac++] = arg_string(TRUSTED, "%s/form", Lp_A_Faults); 988*0Sstevel@tonic-gate av[ac++] = arg_string(TRUSTED, "%s", form->form->name); 989*0Sstevel@tonic-gate av[ac++] = arg_string(TRUSTED, "%s", time_buf); 990*0Sstevel@tonic-gate av[ac++] = arg_string(TRUSTED, "%s/%s/%s", Lp_A_Forms, 991*0Sstevel@tonic-gate form->form->name, FORMMESSAGEFILE); 992*0Sstevel@tonic-gate 993*0Sstevel@tonic-gate break; 994*0Sstevel@tonic-gate 995*0Sstevel@tonic-gate case EX_FAULT_MESSAGE: 996*0Sstevel@tonic-gate procuid = Lp_Uid; 997*0Sstevel@tonic-gate procgid = Lp_Gid; 998*0Sstevel@tonic-gate 999*0Sstevel@tonic-gate av[ac++] = arg_string(TRUSTED, "%s/printer", Lp_A_Faults); 1000*0Sstevel@tonic-gate av[ac++] = arg_string(TRUSTED, "%s", printerNameToShow); 1001*0Sstevel@tonic-gate av[ac++] = arg_string(TRUSTED, "%s", time_buf); 1002*0Sstevel@tonic-gate av[ac++] = arg_string(TRUSTED, "%s/%s/%s", Lp_A_Printers, 1003*0Sstevel@tonic-gate printerName, FAULTMESSAGEFILE); 1004*0Sstevel@tonic-gate 1005*0Sstevel@tonic-gate break; 1006*0Sstevel@tonic-gate 1007*0Sstevel@tonic-gate case EX_NOTIFY: 1008*0Sstevel@tonic-gate if (request->request->alert) { 1009*0Sstevel@tonic-gate if (strchr(request->secure->user, '!')) { 1010*0Sstevel@tonic-gate procuid = Lp_Uid; 1011*0Sstevel@tonic-gate procgid = Lp_Gid; 1012*0Sstevel@tonic-gate } else { 1013*0Sstevel@tonic-gate procuid = request->secure->uid; 1014*0Sstevel@tonic-gate procgid = request->secure->gid; 1015*0Sstevel@tonic-gate } 1016*0Sstevel@tonic-gate av[ac++] = arg_string(TRUSTED, "%s", 1017*0Sstevel@tonic-gate request->request->alert); 1018*0Sstevel@tonic-gate } else { 1019*0Sstevel@tonic-gate char *user = strdup(request->secure->user); 1020*0Sstevel@tonic-gate procuid = Lp_Uid; 1021*0Sstevel@tonic-gate procgid = Lp_Gid; 1022*0Sstevel@tonic-gate clean_string(user); 1023*0Sstevel@tonic-gate 1024*0Sstevel@tonic-gate if ((request->request->actions & ACT_WRITE) && 1025*0Sstevel@tonic-gate (!request->secure->system || 1026*0Sstevel@tonic-gate STREQU(request->secure->system, Local_System))) { 1027*0Sstevel@tonic-gate av[ac++] = arg_string(TRUSTED, "%s", BINWRITE); 1028*0Sstevel@tonic-gate snprintf(argbuf, sizeof (argbuf), 1029*0Sstevel@tonic-gate "%s %s || %s %s", 1030*0Sstevel@tonic-gate BINWRITE, user, 1031*0Sstevel@tonic-gate BINMAIL, user 1032*0Sstevel@tonic-gate ); 1033*0Sstevel@tonic-gate av[ac++] = arg_string(TRUSTED, "/bin/sh"); 1034*0Sstevel@tonic-gate av[ac++] = arg_string(TRUSTED, "-c"); 1035*0Sstevel@tonic-gate av[ac++] = arg_string(TRUSTED, "%s", argbuf); 1036*0Sstevel@tonic-gate } else { 1037*0Sstevel@tonic-gate av[ac++] = arg_string(TRUSTED, "%s", BINMAIL); 1038*0Sstevel@tonic-gate av[ac++] = arg_string(UNTRUSTED, "%s", user); 1039*0Sstevel@tonic-gate } 1040*0Sstevel@tonic-gate 1041*0Sstevel@tonic-gate free(user); 1042*0Sstevel@tonic-gate } 1043*0Sstevel@tonic-gate break; 1044*0Sstevel@tonic-gate } 1045*0Sstevel@tonic-gate 1046*0Sstevel@tonic-gate av[ac++] = NULL; 1047*0Sstevel@tonic-gate 1048*0Sstevel@tonic-gate Fork2 (); 1049*0Sstevel@tonic-gate /* only the child returns */ 1050*0Sstevel@tonic-gate 1051*0Sstevel@tonic-gate /* 1052*0Sstevel@tonic-gate * Correctly set up the supplemental group list 1053*0Sstevel@tonic-gate * for proper file access (before execl the interface program) 1054*0Sstevel@tonic-gate */ 1055*0Sstevel@tonic-gate 1056*0Sstevel@tonic-gate pwp = getpwuid(procuid); 1057*0Sstevel@tonic-gate if (pwp == NULL) { 1058*0Sstevel@tonic-gate note("getpwuid(%d) call failed\n", procuid); 1059*0Sstevel@tonic-gate } else if (initgroups(pwp->pw_name, procgid) < 0) { 1060*0Sstevel@tonic-gate note("initgroups() call failed %d\n", errno); 1061*0Sstevel@tonic-gate } 1062*0Sstevel@tonic-gate 1063*0Sstevel@tonic-gate setgid (procgid); 1064*0Sstevel@tonic-gate setuid (procuid); 1065*0Sstevel@tonic-gate 1066*0Sstevel@tonic-gate /* 1067*0Sstevel@tonic-gate * The shell doesn't allow the "trap" builtin to set a trap 1068*0Sstevel@tonic-gate * for a signal ignored when the shell is started. Thus, don't 1069*0Sstevel@tonic-gate * turn off signals in the last child! 1070*0Sstevel@tonic-gate */ 1071*0Sstevel@tonic-gate 1072*0Sstevel@tonic-gate for (i = 0; av[i] != NULL; i++) 1073*0Sstevel@tonic-gate syslog(LOG_DEBUG, "exec: av[%d] = %s", i, av[i]); 1074*0Sstevel@tonic-gate for (i = 0; av[i] != NULL; i++) 1075*0Sstevel@tonic-gate syslog(LOG_DEBUG, "exec: envp[%d] = %s", i, envp[i]); 1076*0Sstevel@tonic-gate 1077*0Sstevel@tonic-gate execvpe(av[0], av, envp); 1078*0Sstevel@tonic-gate Done (EXEC_EXIT_NEXEC, errno); 1079*0Sstevel@tonic-gate /*NOTREACHED*/ 1080*0Sstevel@tonic-gate } 1081*0Sstevel@tonic-gate 1082*0Sstevel@tonic-gate /** 1083*0Sstevel@tonic-gate ** addenv() - ADD A VARIABLE TO THE ENVIRONMENT 1084*0Sstevel@tonic-gate **/ 1085*0Sstevel@tonic-gate 1086*0Sstevel@tonic-gate static void 1087*0Sstevel@tonic-gate addenv(char ***envp, char *name, char *value) 1088*0Sstevel@tonic-gate { 1089*0Sstevel@tonic-gate register char * cp; 1090*0Sstevel@tonic-gate 1091*0Sstevel@tonic-gate if ((name == NULL) || (value == NULL)) 1092*0Sstevel@tonic-gate return; 1093*0Sstevel@tonic-gate 1094*0Sstevel@tonic-gate if ((cp = makestr(name, "=", value, (char *)0))) 1095*0Sstevel@tonic-gate addlist(envp, cp); 1096*0Sstevel@tonic-gate return; 1097*0Sstevel@tonic-gate } 1098*0Sstevel@tonic-gate 1099*0Sstevel@tonic-gate /** 1100*0Sstevel@tonic-gate ** Fork1() - FORK FIRST CHILD, SET UP CONNECTION TO IT 1101*0Sstevel@tonic-gate **/ 1102*0Sstevel@tonic-gate 1103*0Sstevel@tonic-gate static int 1104*0Sstevel@tonic-gate Fork1(EXEC *ep) 1105*0Sstevel@tonic-gate { 1106*0Sstevel@tonic-gate int pid; 1107*0Sstevel@tonic-gate int fds[2]; 1108*0Sstevel@tonic-gate 1109*0Sstevel@tonic-gate if (pipe(fds) == -1) { 1110*0Sstevel@tonic-gate note("Failed to create pipe for child process (%s).\n", PERROR); 1111*0Sstevel@tonic-gate errno = EAGAIN ; 1112*0Sstevel@tonic-gate return(-1); 1113*0Sstevel@tonic-gate } 1114*0Sstevel@tonic-gate 1115*0Sstevel@tonic-gate ep->md = mconnect((char *)0, fds[0], fds[1]); 1116*0Sstevel@tonic-gate 1117*0Sstevel@tonic-gate switch (pid = fork()) { 1118*0Sstevel@tonic-gate 1119*0Sstevel@tonic-gate case -1: 1120*0Sstevel@tonic-gate mdisconnect(ep->md); 1121*0Sstevel@tonic-gate close(fds[0]); 1122*0Sstevel@tonic-gate close(fds[1]); 1123*0Sstevel@tonic-gate ep->md = 0; 1124*0Sstevel@tonic-gate return (-1); 1125*0Sstevel@tonic-gate 1126*0Sstevel@tonic-gate case 0: 1127*0Sstevel@tonic-gate ChildMd = mconnect(NULL, fds[1], fds[1]); 1128*0Sstevel@tonic-gate return (0); 1129*0Sstevel@tonic-gate 1130*0Sstevel@tonic-gate default: 1131*0Sstevel@tonic-gate mlistenadd(ep->md, POLLIN); 1132*0Sstevel@tonic-gate return (pid); 1133*0Sstevel@tonic-gate } 1134*0Sstevel@tonic-gate } 1135*0Sstevel@tonic-gate 1136*0Sstevel@tonic-gate /** 1137*0Sstevel@tonic-gate ** Fork2() - FORK SECOND CHILD AND WAIT FOR IT 1138*0Sstevel@tonic-gate **/ 1139*0Sstevel@tonic-gate 1140*0Sstevel@tonic-gate static void 1141*0Sstevel@tonic-gate Fork2(void) 1142*0Sstevel@tonic-gate { 1143*0Sstevel@tonic-gate switch ((ChildPid = fork())) { 1144*0Sstevel@tonic-gate 1145*0Sstevel@tonic-gate case -1: 1146*0Sstevel@tonic-gate Done (EXEC_EXIT_NFORK, errno); 1147*0Sstevel@tonic-gate /*NOTREACHED*/ 1148*0Sstevel@tonic-gate 1149*0Sstevel@tonic-gate case 0: 1150*0Sstevel@tonic-gate return; 1151*0Sstevel@tonic-gate 1152*0Sstevel@tonic-gate default: 1153*0Sstevel@tonic-gate /* 1154*0Sstevel@tonic-gate * Delay calling "ignore_fault_signals()" as long 1155*0Sstevel@tonic-gate * as possible, to give the child a chance to exec 1156*0Sstevel@tonic-gate * the interface program and turn on traps. 1157*0Sstevel@tonic-gate */ 1158*0Sstevel@tonic-gate 1159*0Sstevel@tonic-gate cool_heels (); 1160*0Sstevel@tonic-gate /*NOTREACHED*/ 1161*0Sstevel@tonic-gate 1162*0Sstevel@tonic-gate } 1163*0Sstevel@tonic-gate } 1164*0Sstevel@tonic-gate 1165*0Sstevel@tonic-gate 1166*0Sstevel@tonic-gate /** 1167*0Sstevel@tonic-gate ** cool_heels() - WAIT FOR CHILD TO "DIE" 1168*0Sstevel@tonic-gate **/ 1169*0Sstevel@tonic-gate 1170*0Sstevel@tonic-gate static void 1171*0Sstevel@tonic-gate cool_heels(void) 1172*0Sstevel@tonic-gate { 1173*0Sstevel@tonic-gate int status; 1174*0Sstevel@tonic-gate 1175*0Sstevel@tonic-gate /* 1176*0Sstevel@tonic-gate * At this point our only job is to wait for the child process. 1177*0Sstevel@tonic-gate * If we hang out for a bit longer, that's okay. 1178*0Sstevel@tonic-gate * By delaying before turning off the fault signals, 1179*0Sstevel@tonic-gate * we increase the chance that the child process has completed 1180*0Sstevel@tonic-gate * its exec and has turned on the fault traps. Nonetheless, 1181*0Sstevel@tonic-gate * we can't guarantee a zero chance of missing a fault. 1182*0Sstevel@tonic-gate * (We don't want to keep trapping the signals because the 1183*0Sstevel@tonic-gate * interface program is likely to have a better way to handle 1184*0Sstevel@tonic-gate * them; this process provides only rudimentary handling.) 1185*0Sstevel@tonic-gate * 1186*0Sstevel@tonic-gate * Note that on a very busy system, or with a very fast interface 1187*0Sstevel@tonic-gate * program, the tables could be turned: Our sleep below (coupled 1188*0Sstevel@tonic-gate * with a delay in the kernel scheduling us) may cause us to 1189*0Sstevel@tonic-gate * detect the fault instead of the interface program. 1190*0Sstevel@tonic-gate * 1191*0Sstevel@tonic-gate * What we need is a way to synchronize with the child process. 1192*0Sstevel@tonic-gate */ 1193*0Sstevel@tonic-gate sleep (1); 1194*0Sstevel@tonic-gate ignore_fault_signals (); 1195*0Sstevel@tonic-gate 1196*0Sstevel@tonic-gate WaitedChildPid = 0; 1197*0Sstevel@tonic-gate while ((WaitedChildPid = wait(&status)) != ChildPid) 1198*0Sstevel@tonic-gate ; 1199*0Sstevel@tonic-gate 1200*0Sstevel@tonic-gate if ( 1201*0Sstevel@tonic-gate EXITED(status) > EXEC_EXIT_USER 1202*0Sstevel@tonic-gate && EXITED(status) != EXEC_EXIT_FAULT 1203*0Sstevel@tonic-gate ) 1204*0Sstevel@tonic-gate Done (EXEC_EXIT_EXIT, EXITED(status)); 1205*0Sstevel@tonic-gate 1206*0Sstevel@tonic-gate done (status, 0); /* Don't use Done() */ 1207*0Sstevel@tonic-gate /*NOTREACHED*/ 1208*0Sstevel@tonic-gate } 1209*0Sstevel@tonic-gate 1210*0Sstevel@tonic-gate 1211*0Sstevel@tonic-gate /** 1212*0Sstevel@tonic-gate ** trap_fault_signals() - TRAP SIGNALS THAT CAN OCCUR ON PRINTER FAULT 1213*0Sstevel@tonic-gate ** ignore_fault_signals() - IGNORE SAME 1214*0Sstevel@tonic-gate **/ 1215*0Sstevel@tonic-gate 1216*0Sstevel@tonic-gate static void 1217*0Sstevel@tonic-gate trap_fault_signals(void) 1218*0Sstevel@tonic-gate { 1219*0Sstevel@tonic-gate signal (SIGHUP, sigtrap); 1220*0Sstevel@tonic-gate signal (SIGINT, sigtrap); 1221*0Sstevel@tonic-gate signal (SIGQUIT, sigtrap); 1222*0Sstevel@tonic-gate signal (SIGPIPE, sigtrap); 1223*0Sstevel@tonic-gate return; 1224*0Sstevel@tonic-gate } 1225*0Sstevel@tonic-gate 1226*0Sstevel@tonic-gate static void 1227*0Sstevel@tonic-gate ignore_fault_signals(void) 1228*0Sstevel@tonic-gate { 1229*0Sstevel@tonic-gate signal (SIGHUP, SIG_IGN); 1230*0Sstevel@tonic-gate signal (SIGINT, SIG_IGN); 1231*0Sstevel@tonic-gate signal (SIGQUIT, SIG_IGN); 1232*0Sstevel@tonic-gate signal (SIGPIPE, SIG_IGN); 1233*0Sstevel@tonic-gate return; 1234*0Sstevel@tonic-gate } 1235*0Sstevel@tonic-gate 1236*0Sstevel@tonic-gate /** 1237*0Sstevel@tonic-gate ** sigtrap() - TRAP VARIOUS SIGNALS 1238*0Sstevel@tonic-gate **/ 1239*0Sstevel@tonic-gate 1240*0Sstevel@tonic-gate static void 1241*0Sstevel@tonic-gate sigtrap(int sig) 1242*0Sstevel@tonic-gate { 1243*0Sstevel@tonic-gate signal (sig, SIG_IGN); 1244*0Sstevel@tonic-gate switch (sig) { 1245*0Sstevel@tonic-gate 1246*0Sstevel@tonic-gate case SIGHUP: 1247*0Sstevel@tonic-gate Done (EXEC_EXIT_HUP, 0); 1248*0Sstevel@tonic-gate /*NOTREACHED*/ 1249*0Sstevel@tonic-gate 1250*0Sstevel@tonic-gate case SIGQUIT: 1251*0Sstevel@tonic-gate case SIGINT: 1252*0Sstevel@tonic-gate Done (EXEC_EXIT_INTR, 0); 1253*0Sstevel@tonic-gate /*NOTREACHED*/ 1254*0Sstevel@tonic-gate 1255*0Sstevel@tonic-gate case SIGPIPE: 1256*0Sstevel@tonic-gate Done (EXEC_EXIT_PIPE, 0); 1257*0Sstevel@tonic-gate /*NOTREACHED*/ 1258*0Sstevel@tonic-gate 1259*0Sstevel@tonic-gate case SIGTERM: 1260*0Sstevel@tonic-gate /* 1261*0Sstevel@tonic-gate * If we were killed with SIGTERM, it should have been 1262*0Sstevel@tonic-gate * via the Spooler who should have killed the entire 1263*0Sstevel@tonic-gate * process group. We have to wait for the children, 1264*0Sstevel@tonic-gate * since we're their parent, but WE MAY HAVE WAITED 1265*0Sstevel@tonic-gate * FOR THEM ALREADY (in cool_heels()). 1266*0Sstevel@tonic-gate */ 1267*0Sstevel@tonic-gate if (ChildPid != WaitedChildPid) { 1268*0Sstevel@tonic-gate register int cpid; 1269*0Sstevel@tonic-gate 1270*0Sstevel@tonic-gate while ( 1271*0Sstevel@tonic-gate (cpid = wait((int *)0)) != ChildPid 1272*0Sstevel@tonic-gate && (cpid != -1 || errno != ECHILD) 1273*0Sstevel@tonic-gate ) 1274*0Sstevel@tonic-gate ; 1275*0Sstevel@tonic-gate } 1276*0Sstevel@tonic-gate 1277*0Sstevel@tonic-gate /* 1278*0Sstevel@tonic-gate * We can't rely on getting SIGTERM back in the wait() 1279*0Sstevel@tonic-gate * above, because, for instance, some shells trap SIGTERM 1280*0Sstevel@tonic-gate * and exit instead. Thus we force it. 1281*0Sstevel@tonic-gate */ 1282*0Sstevel@tonic-gate done (SIGTERM, 0); /* Don't use Done() */ 1283*0Sstevel@tonic-gate /*NOTREACHED*/ 1284*0Sstevel@tonic-gate } 1285*0Sstevel@tonic-gate } 1286*0Sstevel@tonic-gate 1287*0Sstevel@tonic-gate /** 1288*0Sstevel@tonic-gate ** done() - TELL SPOOLER THIS CHILD IS DONE 1289*0Sstevel@tonic-gate **/ 1290*0Sstevel@tonic-gate 1291*0Sstevel@tonic-gate static void 1292*0Sstevel@tonic-gate done(int status, int err) 1293*0Sstevel@tonic-gate { 1294*0Sstevel@tonic-gate if (do_undial) 1295*0Sstevel@tonic-gate undial (1); 1296*0Sstevel@tonic-gate 1297*0Sstevel@tonic-gate mputm (ChildMd, S_CHILD_DONE, key, slot, status, err); 1298*0Sstevel@tonic-gate mdisconnect (ChildMd); 1299*0Sstevel@tonic-gate 1300*0Sstevel@tonic-gate exit (0); 1301*0Sstevel@tonic-gate /*NOTREACHED*/ 1302*0Sstevel@tonic-gate } 1303*0Sstevel@tonic-gate 1304*0Sstevel@tonic-gate /** 1305*0Sstevel@tonic-gate ** child_mallocfail() 1306*0Sstevel@tonic-gate **/ 1307*0Sstevel@tonic-gate 1308*0Sstevel@tonic-gate static void 1309*0Sstevel@tonic-gate child_mallocfail(void) 1310*0Sstevel@tonic-gate { 1311*0Sstevel@tonic-gate Done (EXEC_EXIT_NOMEM, ENOMEM); 1312*0Sstevel@tonic-gate } 1313