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 2005 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 28*0Sstevel@tonic-gate 29*0Sstevel@tonic-gate #include "lint.h" 30*0Sstevel@tonic-gate #include "thr_uberdata.h" 31*0Sstevel@tonic-gate #include <sys/procset.h> 32*0Sstevel@tonic-gate #include <sys/rtpriocntl.h> 33*0Sstevel@tonic-gate #include <sys/tspriocntl.h> 34*0Sstevel@tonic-gate #include <sys/rt.h> 35*0Sstevel@tonic-gate #include <sys/ts.h> 36*0Sstevel@tonic-gate #include <alloca.h> 37*0Sstevel@tonic-gate #include <spawn.h> 38*0Sstevel@tonic-gate 39*0Sstevel@tonic-gate #define ALL_POSIX_SPAWN_FLAGS \ 40*0Sstevel@tonic-gate (POSIX_SPAWN_RESETIDS | \ 41*0Sstevel@tonic-gate POSIX_SPAWN_SETPGROUP | \ 42*0Sstevel@tonic-gate POSIX_SPAWN_SETSIGDEF | \ 43*0Sstevel@tonic-gate POSIX_SPAWN_SETSIGMASK | \ 44*0Sstevel@tonic-gate POSIX_SPAWN_SETSCHEDPARAM | \ 45*0Sstevel@tonic-gate POSIX_SPAWN_SETSCHEDULER) 46*0Sstevel@tonic-gate 47*0Sstevel@tonic-gate typedef struct { 48*0Sstevel@tonic-gate short sa_psflags; /* POSIX_SPAWN_* flags */ 49*0Sstevel@tonic-gate pri_t sa_priority; 50*0Sstevel@tonic-gate int sa_schedpolicy; 51*0Sstevel@tonic-gate pid_t sa_pgroup; 52*0Sstevel@tonic-gate sigset_t sa_sigdefault; 53*0Sstevel@tonic-gate sigset_t sa_sigmask; 54*0Sstevel@tonic-gate } spawn_attr_t; 55*0Sstevel@tonic-gate 56*0Sstevel@tonic-gate typedef struct file_attr { 57*0Sstevel@tonic-gate struct file_attr *fa_next; /* circular list of file actions */ 58*0Sstevel@tonic-gate struct file_attr *fa_prev; 59*0Sstevel@tonic-gate enum {FA_OPEN, FA_CLOSE, FA_DUP2} fa_type; 60*0Sstevel@tonic-gate uint_t fa_pathsize; /* size of fa_path[] array */ 61*0Sstevel@tonic-gate char *fa_path; /* copied pathname for open() */ 62*0Sstevel@tonic-gate int fa_oflag; /* oflag for open() */ 63*0Sstevel@tonic-gate mode_t fa_mode; /* mode for open() */ 64*0Sstevel@tonic-gate int fa_filedes; /* file descriptor for open()/close() */ 65*0Sstevel@tonic-gate int fa_newfiledes; /* new file descriptor for dup2() */ 66*0Sstevel@tonic-gate } file_attr_t; 67*0Sstevel@tonic-gate 68*0Sstevel@tonic-gate extern pid_t _vfork(void); 69*0Sstevel@tonic-gate #pragma unknown_control_flow(_vfork) 70*0Sstevel@tonic-gate extern void *_private_memset(void *, int, size_t); 71*0Sstevel@tonic-gate extern int __lwp_sigmask(int, const sigset_t *, sigset_t *); 72*0Sstevel@tonic-gate extern int __open(const char *, int, mode_t); 73*0Sstevel@tonic-gate extern int __sigaction(int, const struct sigaction *, struct sigaction *); 74*0Sstevel@tonic-gate extern int _private_close(int); 75*0Sstevel@tonic-gate extern int _private_execve(const char *, char *const *, char *const *); 76*0Sstevel@tonic-gate extern int _private_fcntl(int, int, intptr_t); 77*0Sstevel@tonic-gate extern int _private_setgid(gid_t); 78*0Sstevel@tonic-gate extern int _private_setpgid(pid_t, pid_t); 79*0Sstevel@tonic-gate extern int _private_setuid(uid_t); 80*0Sstevel@tonic-gate extern int _private_sigismember(sigset_t *, int); 81*0Sstevel@tonic-gate extern gid_t _private_getgid(void); 82*0Sstevel@tonic-gate extern uid_t _private_getuid(void); 83*0Sstevel@tonic-gate extern uid_t _private_geteuid(void); 84*0Sstevel@tonic-gate extern void _private_exit(int); 85*0Sstevel@tonic-gate 86*0Sstevel@tonic-gate /* 87*0Sstevel@tonic-gate * We call this function rather than priocntl() because we must not call 88*0Sstevel@tonic-gate * any function that is exported from libc while in the child of vfork(). 89*0Sstevel@tonic-gate * Also, we are not using PC_GETXPARMS or PC_SETXPARMS so we can use 90*0Sstevel@tonic-gate * the simple call to __priocntlset() rather than the varargs version. 91*0Sstevel@tonic-gate */ 92*0Sstevel@tonic-gate static long 93*0Sstevel@tonic-gate _private_priocntl(idtype_t idtype, id_t id, int cmd, caddr_t arg) 94*0Sstevel@tonic-gate { 95*0Sstevel@tonic-gate extern long _private__priocntlset(int, procset_t *, int, caddr_t, ...); 96*0Sstevel@tonic-gate procset_t procset; 97*0Sstevel@tonic-gate 98*0Sstevel@tonic-gate setprocset(&procset, POP_AND, idtype, id, P_ALL, 0); 99*0Sstevel@tonic-gate return (_private__priocntlset(PC_VERSION, &procset, cmd, arg, 0)); 100*0Sstevel@tonic-gate } 101*0Sstevel@tonic-gate 102*0Sstevel@tonic-gate /* 103*0Sstevel@tonic-gate * The following two functions are blatently stolen from 104*0Sstevel@tonic-gate * sched_setscheduler() and sched_setparam() in librt. 105*0Sstevel@tonic-gate * This would be a lot easier if librt were folded into libc. 106*0Sstevel@tonic-gate */ 107*0Sstevel@tonic-gate static int 108*0Sstevel@tonic-gate setscheduler(int policy, pri_t prio) 109*0Sstevel@tonic-gate { 110*0Sstevel@tonic-gate pcparms_t pcparm; 111*0Sstevel@tonic-gate tsinfo_t *tsi; 112*0Sstevel@tonic-gate tsparms_t *tsp; 113*0Sstevel@tonic-gate int scale; 114*0Sstevel@tonic-gate 115*0Sstevel@tonic-gate switch (policy) { 116*0Sstevel@tonic-gate case SCHED_FIFO: 117*0Sstevel@tonic-gate case SCHED_RR: 118*0Sstevel@tonic-gate if (prio < rt_class.pcc_primin || prio > rt_class.pcc_primax) { 119*0Sstevel@tonic-gate errno = EINVAL; 120*0Sstevel@tonic-gate return (-1); 121*0Sstevel@tonic-gate } 122*0Sstevel@tonic-gate pcparm.pc_cid = rt_class.pcc_info.pc_cid; 123*0Sstevel@tonic-gate ((rtparms_t *)pcparm.pc_clparms)->rt_pri = prio; 124*0Sstevel@tonic-gate ((rtparms_t *)pcparm.pc_clparms)->rt_tqnsecs = 125*0Sstevel@tonic-gate (policy == SCHED_RR ? RT_TQDEF : RT_TQINF); 126*0Sstevel@tonic-gate break; 127*0Sstevel@tonic-gate 128*0Sstevel@tonic-gate case SCHED_OTHER: 129*0Sstevel@tonic-gate pcparm.pc_cid = ts_class.pcc_info.pc_cid; 130*0Sstevel@tonic-gate tsi = (tsinfo_t *)ts_class.pcc_info.pc_clinfo; 131*0Sstevel@tonic-gate scale = tsi->ts_maxupri; 132*0Sstevel@tonic-gate tsp = (tsparms_t *)pcparm.pc_clparms; 133*0Sstevel@tonic-gate tsp->ts_uprilim = tsp->ts_upri = -(scale * prio) / 20; 134*0Sstevel@tonic-gate break; 135*0Sstevel@tonic-gate 136*0Sstevel@tonic-gate default: 137*0Sstevel@tonic-gate errno = EINVAL; 138*0Sstevel@tonic-gate return (-1); 139*0Sstevel@tonic-gate } 140*0Sstevel@tonic-gate 141*0Sstevel@tonic-gate return (_private_priocntl(P_PID, P_MYID, 142*0Sstevel@tonic-gate PC_SETPARMS, (caddr_t)&pcparm)); 143*0Sstevel@tonic-gate } 144*0Sstevel@tonic-gate 145*0Sstevel@tonic-gate static int 146*0Sstevel@tonic-gate setparam(pcparms_t *pcparmp, pri_t prio) 147*0Sstevel@tonic-gate { 148*0Sstevel@tonic-gate tsparms_t *tsp; 149*0Sstevel@tonic-gate tsinfo_t *tsi; 150*0Sstevel@tonic-gate int scale; 151*0Sstevel@tonic-gate 152*0Sstevel@tonic-gate if (pcparmp->pc_cid == rt_class.pcc_info.pc_cid) { 153*0Sstevel@tonic-gate /* SCHED_FIFO or SCHED_RR policy */ 154*0Sstevel@tonic-gate if (prio < rt_class.pcc_primin || prio > rt_class.pcc_primax) { 155*0Sstevel@tonic-gate errno = EINVAL; 156*0Sstevel@tonic-gate return (-1); 157*0Sstevel@tonic-gate } 158*0Sstevel@tonic-gate ((rtparms_t *)pcparmp->pc_clparms)->rt_tqnsecs = RT_NOCHANGE; 159*0Sstevel@tonic-gate ((rtparms_t *)pcparmp->pc_clparms)->rt_pri = prio; 160*0Sstevel@tonic-gate } else if (pcparmp->pc_cid == ts_class.pcc_info.pc_cid) { 161*0Sstevel@tonic-gate /* SCHED_OTHER policy */ 162*0Sstevel@tonic-gate tsi = (tsinfo_t *)ts_class.pcc_info.pc_clinfo; 163*0Sstevel@tonic-gate scale = tsi->ts_maxupri; 164*0Sstevel@tonic-gate tsp = (tsparms_t *)pcparmp->pc_clparms; 165*0Sstevel@tonic-gate tsp->ts_uprilim = tsp->ts_upri = -(scale * prio) / 20; 166*0Sstevel@tonic-gate } else { 167*0Sstevel@tonic-gate errno = EINVAL; 168*0Sstevel@tonic-gate return (-1); 169*0Sstevel@tonic-gate } 170*0Sstevel@tonic-gate 171*0Sstevel@tonic-gate return (_private_priocntl(P_PID, P_MYID, 172*0Sstevel@tonic-gate PC_SETPARMS, (caddr_t)pcparmp)); 173*0Sstevel@tonic-gate } 174*0Sstevel@tonic-gate 175*0Sstevel@tonic-gate static void 176*0Sstevel@tonic-gate perform_flag_actions(spawn_attr_t *sap) 177*0Sstevel@tonic-gate { 178*0Sstevel@tonic-gate int sig; 179*0Sstevel@tonic-gate 180*0Sstevel@tonic-gate if (sap->sa_psflags & POSIX_SPAWN_SETSIGMASK) { 181*0Sstevel@tonic-gate (void) __lwp_sigmask(SIG_SETMASK, &sap->sa_sigmask, NULL); 182*0Sstevel@tonic-gate } 183*0Sstevel@tonic-gate 184*0Sstevel@tonic-gate if (sap->sa_psflags & POSIX_SPAWN_SETSIGDEF) { 185*0Sstevel@tonic-gate struct sigaction sigdfl; 186*0Sstevel@tonic-gate 187*0Sstevel@tonic-gate (void) _private_memset(&sigdfl, 0, sizeof (sigdfl)); 188*0Sstevel@tonic-gate for (sig = 1; sig < NSIG; sig++) { 189*0Sstevel@tonic-gate if (_private_sigismember(&sap->sa_sigdefault, sig)) 190*0Sstevel@tonic-gate (void) __sigaction(sig, &sigdfl, NULL); 191*0Sstevel@tonic-gate } 192*0Sstevel@tonic-gate } 193*0Sstevel@tonic-gate 194*0Sstevel@tonic-gate if (sap->sa_psflags & POSIX_SPAWN_RESETIDS) { 195*0Sstevel@tonic-gate if (_private_setgid(_private_getgid()) != 0 || 196*0Sstevel@tonic-gate _private_setuid(_private_getuid()) != 0) 197*0Sstevel@tonic-gate _private_exit(127); 198*0Sstevel@tonic-gate } 199*0Sstevel@tonic-gate 200*0Sstevel@tonic-gate if (sap->sa_psflags & POSIX_SPAWN_SETPGROUP) { 201*0Sstevel@tonic-gate if (_private_setpgid(0, sap->sa_pgroup) != 0) 202*0Sstevel@tonic-gate _private_exit(127); 203*0Sstevel@tonic-gate } 204*0Sstevel@tonic-gate 205*0Sstevel@tonic-gate if (sap->sa_psflags & POSIX_SPAWN_SETSCHEDULER) { 206*0Sstevel@tonic-gate if (setscheduler(sap->sa_schedpolicy, sap->sa_priority) != 0) 207*0Sstevel@tonic-gate _private_exit(127); 208*0Sstevel@tonic-gate } else if (sap->sa_psflags & POSIX_SPAWN_SETSCHEDPARAM) { 209*0Sstevel@tonic-gate /* 210*0Sstevel@tonic-gate * Get the process's current scheduling parameters, 211*0Sstevel@tonic-gate * then modify to set the new priority. 212*0Sstevel@tonic-gate */ 213*0Sstevel@tonic-gate pcparms_t pcparm; 214*0Sstevel@tonic-gate 215*0Sstevel@tonic-gate pcparm.pc_cid = PC_CLNULL; 216*0Sstevel@tonic-gate if (_private_priocntl(P_PID, P_MYID, 217*0Sstevel@tonic-gate PC_GETPARMS, (caddr_t)&pcparm) == -1) 218*0Sstevel@tonic-gate _private_exit(127); 219*0Sstevel@tonic-gate if (setparam(&pcparm, sap->sa_priority) != 0) 220*0Sstevel@tonic-gate _private_exit(127); 221*0Sstevel@tonic-gate } 222*0Sstevel@tonic-gate } 223*0Sstevel@tonic-gate 224*0Sstevel@tonic-gate static void 225*0Sstevel@tonic-gate perform_file_actions(file_attr_t *fap) 226*0Sstevel@tonic-gate { 227*0Sstevel@tonic-gate file_attr_t *froot = fap; 228*0Sstevel@tonic-gate int fd; 229*0Sstevel@tonic-gate 230*0Sstevel@tonic-gate do { 231*0Sstevel@tonic-gate switch (fap->fa_type) { 232*0Sstevel@tonic-gate case FA_OPEN: 233*0Sstevel@tonic-gate fd = __open(fap->fa_path, fap->fa_oflag, fap->fa_mode); 234*0Sstevel@tonic-gate if (fd < 0) 235*0Sstevel@tonic-gate _private_exit(127); 236*0Sstevel@tonic-gate if (fd != fap->fa_filedes) { 237*0Sstevel@tonic-gate if (_private_fcntl(fd, F_DUP2FD, 238*0Sstevel@tonic-gate fap->fa_filedes) < 0) 239*0Sstevel@tonic-gate _private_exit(127); 240*0Sstevel@tonic-gate (void) _private_close(fd); 241*0Sstevel@tonic-gate } 242*0Sstevel@tonic-gate break; 243*0Sstevel@tonic-gate case FA_CLOSE: 244*0Sstevel@tonic-gate if (_private_close(fap->fa_filedes) == -1) 245*0Sstevel@tonic-gate _private_exit(127); 246*0Sstevel@tonic-gate break; 247*0Sstevel@tonic-gate case FA_DUP2: 248*0Sstevel@tonic-gate fd = _private_fcntl(fap->fa_filedes, F_DUP2FD, 249*0Sstevel@tonic-gate fap->fa_newfiledes); 250*0Sstevel@tonic-gate if (fd < 0) 251*0Sstevel@tonic-gate _private_exit(127); 252*0Sstevel@tonic-gate break; 253*0Sstevel@tonic-gate } 254*0Sstevel@tonic-gate } while ((fap = fap->fa_next) != froot); 255*0Sstevel@tonic-gate } 256*0Sstevel@tonic-gate 257*0Sstevel@tonic-gate /* 258*0Sstevel@tonic-gate * For MT safety, do not invoke the dynamic linker after calling vfork(). 259*0Sstevel@tonic-gate * If some other thread was in the dynamic linker when this thread's parent 260*0Sstevel@tonic-gate * called vfork() then the dynamic linker's lock would still be held here 261*0Sstevel@tonic-gate * (with a defunct owner) and we would deadlock ourself if we invoked it. 262*0Sstevel@tonic-gate * 263*0Sstevel@tonic-gate * Therefore, all of the functions we call here after returning from 264*0Sstevel@tonic-gate * _vfork() in the child are not and must never be exported from libc 265*0Sstevel@tonic-gate * as global symbols. To do so would risk invoking the dynamic linker. 266*0Sstevel@tonic-gate */ 267*0Sstevel@tonic-gate 268*0Sstevel@tonic-gate #pragma weak posix_spawn = _posix_spawn 269*0Sstevel@tonic-gate int 270*0Sstevel@tonic-gate _posix_spawn( 271*0Sstevel@tonic-gate pid_t *pidp, 272*0Sstevel@tonic-gate const char *path, 273*0Sstevel@tonic-gate const posix_spawn_file_actions_t *file_actions, 274*0Sstevel@tonic-gate const posix_spawnattr_t *attrp, 275*0Sstevel@tonic-gate char *const argv[], 276*0Sstevel@tonic-gate char *const envp[]) 277*0Sstevel@tonic-gate { 278*0Sstevel@tonic-gate spawn_attr_t *sap = attrp? attrp->__spawn_attrp : NULL; 279*0Sstevel@tonic-gate file_attr_t *fap = file_actions? file_actions->__file_attrp : NULL; 280*0Sstevel@tonic-gate pid_t pid; 281*0Sstevel@tonic-gate 282*0Sstevel@tonic-gate if (attrp != NULL && sap == NULL) 283*0Sstevel@tonic-gate return (EINVAL); 284*0Sstevel@tonic-gate 285*0Sstevel@tonic-gate switch (pid = _vfork()) { 286*0Sstevel@tonic-gate case 0: /* child */ 287*0Sstevel@tonic-gate break; 288*0Sstevel@tonic-gate case -1: /* parent, failure */ 289*0Sstevel@tonic-gate return (errno); 290*0Sstevel@tonic-gate default: /* parent, success */ 291*0Sstevel@tonic-gate if (pidp != NULL) 292*0Sstevel@tonic-gate *pidp = pid; 293*0Sstevel@tonic-gate return (0); 294*0Sstevel@tonic-gate } 295*0Sstevel@tonic-gate 296*0Sstevel@tonic-gate if (sap != NULL) 297*0Sstevel@tonic-gate perform_flag_actions(sap); 298*0Sstevel@tonic-gate 299*0Sstevel@tonic-gate if (fap != NULL) 300*0Sstevel@tonic-gate perform_file_actions(fap); 301*0Sstevel@tonic-gate 302*0Sstevel@tonic-gate (void) _private_execve(path, argv, envp); 303*0Sstevel@tonic-gate _private_exit(127); 304*0Sstevel@tonic-gate return (0); /* not reached */ 305*0Sstevel@tonic-gate } 306*0Sstevel@tonic-gate 307*0Sstevel@tonic-gate /* 308*0Sstevel@tonic-gate * Much of posix_spawnp() blatently stolen from execvp() (port/gen/execvp.c). 309*0Sstevel@tonic-gate */ 310*0Sstevel@tonic-gate 311*0Sstevel@tonic-gate extern int __xpg4; /* defined in xpg4.c; 0 if not xpg4-compiled program */ 312*0Sstevel@tonic-gate 313*0Sstevel@tonic-gate static const char * 314*0Sstevel@tonic-gate execat(const char *s1, const char *s2, char *si) 315*0Sstevel@tonic-gate { 316*0Sstevel@tonic-gate int cnt = PATH_MAX + 1; 317*0Sstevel@tonic-gate char *s; 318*0Sstevel@tonic-gate char c; 319*0Sstevel@tonic-gate 320*0Sstevel@tonic-gate for (s = si; (c = *s1) != '\0' && c != ':'; s1++) { 321*0Sstevel@tonic-gate if (cnt > 0) { 322*0Sstevel@tonic-gate *s++ = c; 323*0Sstevel@tonic-gate cnt--; 324*0Sstevel@tonic-gate } 325*0Sstevel@tonic-gate } 326*0Sstevel@tonic-gate if (si != s && cnt > 0) { 327*0Sstevel@tonic-gate *s++ = '/'; 328*0Sstevel@tonic-gate cnt--; 329*0Sstevel@tonic-gate } 330*0Sstevel@tonic-gate for (; (c = *s2) != '\0' && cnt > 0; s2++) { 331*0Sstevel@tonic-gate *s++ = c; 332*0Sstevel@tonic-gate cnt--; 333*0Sstevel@tonic-gate } 334*0Sstevel@tonic-gate *s = '\0'; 335*0Sstevel@tonic-gate return (*s1? ++s1: NULL); 336*0Sstevel@tonic-gate } 337*0Sstevel@tonic-gate 338*0Sstevel@tonic-gate #pragma weak posix_spawnp = _posix_spawnp 339*0Sstevel@tonic-gate /* ARGSUSED */ 340*0Sstevel@tonic-gate int 341*0Sstevel@tonic-gate _posix_spawnp( 342*0Sstevel@tonic-gate pid_t *pidp, 343*0Sstevel@tonic-gate const char *file, 344*0Sstevel@tonic-gate const posix_spawn_file_actions_t *file_actions, 345*0Sstevel@tonic-gate const posix_spawnattr_t *attrp, 346*0Sstevel@tonic-gate char *const argv[], 347*0Sstevel@tonic-gate char *const envp[]) 348*0Sstevel@tonic-gate { 349*0Sstevel@tonic-gate spawn_attr_t *sap = attrp? attrp->__spawn_attrp : NULL; 350*0Sstevel@tonic-gate file_attr_t *fap = file_actions? file_actions->__file_attrp : NULL; 351*0Sstevel@tonic-gate const char *pathstr = (strchr(file, '/') == NULL)? getenv("PATH") : ""; 352*0Sstevel@tonic-gate int xpg4 = __xpg4; 353*0Sstevel@tonic-gate char path[PATH_MAX+4]; 354*0Sstevel@tonic-gate const char *cp; 355*0Sstevel@tonic-gate pid_t pid; 356*0Sstevel@tonic-gate char **newargs; 357*0Sstevel@tonic-gate int argc; 358*0Sstevel@tonic-gate int i; 359*0Sstevel@tonic-gate static const char *sun_path = "/bin/sh"; 360*0Sstevel@tonic-gate static const char *xpg4_path = "/usr/xpg4/bin/sh"; 361*0Sstevel@tonic-gate static const char *shell = "sh"; 362*0Sstevel@tonic-gate 363*0Sstevel@tonic-gate if (attrp != NULL && sap == NULL) 364*0Sstevel@tonic-gate return (EINVAL); 365*0Sstevel@tonic-gate 366*0Sstevel@tonic-gate /* 367*0Sstevel@tonic-gate * We may need to invoke the shell with a slightly modified 368*0Sstevel@tonic-gate * argv[] array. To do this we need to preallocate the array. 369*0Sstevel@tonic-gate * We must call alloca() before calling vfork() because doing 370*0Sstevel@tonic-gate * it after vfork() (in the child) would corrupt the parent. 371*0Sstevel@tonic-gate */ 372*0Sstevel@tonic-gate for (argc = 0; argv[argc] != NULL; argc++) 373*0Sstevel@tonic-gate continue; 374*0Sstevel@tonic-gate newargs = alloca((argc + 2) * sizeof (char *)); 375*0Sstevel@tonic-gate 376*0Sstevel@tonic-gate switch (pid = _vfork()) { 377*0Sstevel@tonic-gate case 0: /* child */ 378*0Sstevel@tonic-gate break; 379*0Sstevel@tonic-gate case -1: /* parent, failure */ 380*0Sstevel@tonic-gate return (errno); 381*0Sstevel@tonic-gate default: /* parent, success */ 382*0Sstevel@tonic-gate if (pidp != NULL) 383*0Sstevel@tonic-gate *pidp = pid; 384*0Sstevel@tonic-gate return (0); 385*0Sstevel@tonic-gate } 386*0Sstevel@tonic-gate 387*0Sstevel@tonic-gate if (*file == '\0') 388*0Sstevel@tonic-gate _private_exit(127); 389*0Sstevel@tonic-gate 390*0Sstevel@tonic-gate if (sap != NULL) 391*0Sstevel@tonic-gate perform_flag_actions(sap); 392*0Sstevel@tonic-gate 393*0Sstevel@tonic-gate if (fap != NULL) 394*0Sstevel@tonic-gate perform_file_actions(fap); 395*0Sstevel@tonic-gate 396*0Sstevel@tonic-gate if (pathstr == NULL) { 397*0Sstevel@tonic-gate /* 398*0Sstevel@tonic-gate * XPG4: pathstr is equivalent to _CS_PATH, except that 399*0Sstevel@tonic-gate * :/usr/sbin is appended when root, and pathstr must end 400*0Sstevel@tonic-gate * with a colon when not root. Keep these paths in sync 401*0Sstevel@tonic-gate * with _CS_PATH in confstr.c. Note that pathstr must end 402*0Sstevel@tonic-gate * with a colon when not root so that when file doesn't 403*0Sstevel@tonic-gate * contain '/', the last call to execat() will result in an 404*0Sstevel@tonic-gate * attempt to execv file from the current directory. 405*0Sstevel@tonic-gate */ 406*0Sstevel@tonic-gate if (_private_geteuid() == 0 || _private_getuid() == 0) { 407*0Sstevel@tonic-gate if (!xpg4) 408*0Sstevel@tonic-gate pathstr = "/usr/sbin:/usr/ccs/bin:/usr/bin"; 409*0Sstevel@tonic-gate else 410*0Sstevel@tonic-gate pathstr = "/usr/xpg4/bin:/usr/ccs/bin:" 411*0Sstevel@tonic-gate "/usr/bin:/opt/SUNWspro/bin:/usr/sbin"; 412*0Sstevel@tonic-gate } else { 413*0Sstevel@tonic-gate if (!xpg4) 414*0Sstevel@tonic-gate pathstr = "/usr/ccs/bin:/usr/bin:"; 415*0Sstevel@tonic-gate else 416*0Sstevel@tonic-gate pathstr = "/usr/xpg4/bin:/usr/ccs/bin:" 417*0Sstevel@tonic-gate "/usr/bin:/opt/SUNWspro/bin:"; 418*0Sstevel@tonic-gate } 419*0Sstevel@tonic-gate } 420*0Sstevel@tonic-gate 421*0Sstevel@tonic-gate cp = pathstr; 422*0Sstevel@tonic-gate do { 423*0Sstevel@tonic-gate cp = execat(cp, file, path); 424*0Sstevel@tonic-gate /* 425*0Sstevel@tonic-gate * 4025035 and 4038378 426*0Sstevel@tonic-gate * if a filename begins with a "-" prepend "./" so that 427*0Sstevel@tonic-gate * the shell can't interpret it as an option 428*0Sstevel@tonic-gate */ 429*0Sstevel@tonic-gate if (*path == '-') { 430*0Sstevel@tonic-gate char *s; 431*0Sstevel@tonic-gate 432*0Sstevel@tonic-gate for (s = path; *s != '\0'; s++) 433*0Sstevel@tonic-gate continue; 434*0Sstevel@tonic-gate for (; s >= path; s--) 435*0Sstevel@tonic-gate *(s + 2) = *s; 436*0Sstevel@tonic-gate path[0] = '.'; 437*0Sstevel@tonic-gate path[1] = '/'; 438*0Sstevel@tonic-gate } 439*0Sstevel@tonic-gate (void) _private_execve(path, argv, envp); 440*0Sstevel@tonic-gate if (errno == ENOEXEC) { 441*0Sstevel@tonic-gate newargs[0] = (char *)shell; 442*0Sstevel@tonic-gate newargs[1] = path; 443*0Sstevel@tonic-gate for (i = 1; i <= argc; i++) 444*0Sstevel@tonic-gate newargs[i + 1] = argv[i]; 445*0Sstevel@tonic-gate (void) _private_execve(xpg4? xpg4_path : sun_path, 446*0Sstevel@tonic-gate newargs, envp); 447*0Sstevel@tonic-gate _private_exit(127); 448*0Sstevel@tonic-gate } 449*0Sstevel@tonic-gate } while (cp); 450*0Sstevel@tonic-gate _private_exit(127); 451*0Sstevel@tonic-gate return (0); /* not reached */ 452*0Sstevel@tonic-gate } 453*0Sstevel@tonic-gate 454*0Sstevel@tonic-gate #pragma weak posix_spawn_file_actions_init = \ 455*0Sstevel@tonic-gate _posix_spawn_file_actions_init 456*0Sstevel@tonic-gate int 457*0Sstevel@tonic-gate _posix_spawn_file_actions_init( 458*0Sstevel@tonic-gate posix_spawn_file_actions_t *file_actions) 459*0Sstevel@tonic-gate { 460*0Sstevel@tonic-gate file_actions->__file_attrp = NULL; 461*0Sstevel@tonic-gate return (0); 462*0Sstevel@tonic-gate } 463*0Sstevel@tonic-gate 464*0Sstevel@tonic-gate #pragma weak posix_spawn_file_actions_destroy = \ 465*0Sstevel@tonic-gate _posix_spawn_file_actions_destroy 466*0Sstevel@tonic-gate int 467*0Sstevel@tonic-gate _posix_spawn_file_actions_destroy( 468*0Sstevel@tonic-gate posix_spawn_file_actions_t *file_actions) 469*0Sstevel@tonic-gate { 470*0Sstevel@tonic-gate file_attr_t *froot = file_actions->__file_attrp; 471*0Sstevel@tonic-gate file_attr_t *fap; 472*0Sstevel@tonic-gate file_attr_t *next; 473*0Sstevel@tonic-gate 474*0Sstevel@tonic-gate if ((fap = froot) != NULL) { 475*0Sstevel@tonic-gate do { 476*0Sstevel@tonic-gate next = fap->fa_next; 477*0Sstevel@tonic-gate if (fap-> fa_type == FA_OPEN) 478*0Sstevel@tonic-gate lfree(fap->fa_path, fap->fa_pathsize); 479*0Sstevel@tonic-gate lfree(fap, sizeof (*fap)); 480*0Sstevel@tonic-gate } while ((fap = next) != froot); 481*0Sstevel@tonic-gate } 482*0Sstevel@tonic-gate file_actions->__file_attrp = NULL; 483*0Sstevel@tonic-gate return (0); 484*0Sstevel@tonic-gate } 485*0Sstevel@tonic-gate 486*0Sstevel@tonic-gate static void 487*0Sstevel@tonic-gate add_file_attr(posix_spawn_file_actions_t *file_actions, file_attr_t *fap) 488*0Sstevel@tonic-gate { 489*0Sstevel@tonic-gate file_attr_t *froot = file_actions->__file_attrp; 490*0Sstevel@tonic-gate 491*0Sstevel@tonic-gate if (froot == NULL) { 492*0Sstevel@tonic-gate fap->fa_next = fap->fa_prev = fap; 493*0Sstevel@tonic-gate file_actions->__file_attrp = fap; 494*0Sstevel@tonic-gate } else { 495*0Sstevel@tonic-gate fap->fa_next = froot; 496*0Sstevel@tonic-gate fap->fa_prev = froot->fa_prev; 497*0Sstevel@tonic-gate froot->fa_prev->fa_next = fap; 498*0Sstevel@tonic-gate froot->fa_prev = fap; 499*0Sstevel@tonic-gate } 500*0Sstevel@tonic-gate } 501*0Sstevel@tonic-gate 502*0Sstevel@tonic-gate #pragma weak posix_spawn_file_actions_addopen = \ 503*0Sstevel@tonic-gate _posix_spawn_file_actions_addopen 504*0Sstevel@tonic-gate int 505*0Sstevel@tonic-gate _posix_spawn_file_actions_addopen( 506*0Sstevel@tonic-gate posix_spawn_file_actions_t *file_actions, 507*0Sstevel@tonic-gate int filedes, 508*0Sstevel@tonic-gate const char *path, 509*0Sstevel@tonic-gate int oflag, 510*0Sstevel@tonic-gate mode_t mode) 511*0Sstevel@tonic-gate { 512*0Sstevel@tonic-gate file_attr_t *fap; 513*0Sstevel@tonic-gate 514*0Sstevel@tonic-gate if (filedes < 0) 515*0Sstevel@tonic-gate return (EBADF); 516*0Sstevel@tonic-gate if ((fap = lmalloc(sizeof (*fap))) == NULL) 517*0Sstevel@tonic-gate return (ENOMEM); 518*0Sstevel@tonic-gate 519*0Sstevel@tonic-gate fap->fa_pathsize = strlen(path) + 1; 520*0Sstevel@tonic-gate if ((fap->fa_path = lmalloc(fap->fa_pathsize)) == NULL) { 521*0Sstevel@tonic-gate lfree(fap, sizeof (*fap)); 522*0Sstevel@tonic-gate return (ENOMEM); 523*0Sstevel@tonic-gate } 524*0Sstevel@tonic-gate (void) strcpy(fap->fa_path, path); 525*0Sstevel@tonic-gate 526*0Sstevel@tonic-gate fap->fa_type = FA_OPEN; 527*0Sstevel@tonic-gate fap->fa_oflag = oflag; 528*0Sstevel@tonic-gate fap->fa_mode = mode; 529*0Sstevel@tonic-gate fap->fa_filedes = filedes; 530*0Sstevel@tonic-gate add_file_attr(file_actions, fap); 531*0Sstevel@tonic-gate 532*0Sstevel@tonic-gate return (0); 533*0Sstevel@tonic-gate } 534*0Sstevel@tonic-gate 535*0Sstevel@tonic-gate #pragma weak posix_spawn_file_actions_addclose = \ 536*0Sstevel@tonic-gate _posix_spawn_file_actions_addclose 537*0Sstevel@tonic-gate int 538*0Sstevel@tonic-gate _posix_spawn_file_actions_addclose( 539*0Sstevel@tonic-gate posix_spawn_file_actions_t *file_actions, 540*0Sstevel@tonic-gate int filedes) 541*0Sstevel@tonic-gate { 542*0Sstevel@tonic-gate file_attr_t *fap; 543*0Sstevel@tonic-gate 544*0Sstevel@tonic-gate if (filedes < 0) 545*0Sstevel@tonic-gate return (EBADF); 546*0Sstevel@tonic-gate if ((fap = lmalloc(sizeof (*fap))) == NULL) 547*0Sstevel@tonic-gate return (ENOMEM); 548*0Sstevel@tonic-gate 549*0Sstevel@tonic-gate fap->fa_type = FA_CLOSE; 550*0Sstevel@tonic-gate fap->fa_filedes = filedes; 551*0Sstevel@tonic-gate add_file_attr(file_actions, fap); 552*0Sstevel@tonic-gate 553*0Sstevel@tonic-gate return (0); 554*0Sstevel@tonic-gate } 555*0Sstevel@tonic-gate 556*0Sstevel@tonic-gate #pragma weak posix_spawn_file_actions_adddup2 = \ 557*0Sstevel@tonic-gate _posix_spawn_file_actions_adddup2 558*0Sstevel@tonic-gate int 559*0Sstevel@tonic-gate _posix_spawn_file_actions_adddup2( 560*0Sstevel@tonic-gate posix_spawn_file_actions_t *file_actions, 561*0Sstevel@tonic-gate int filedes, 562*0Sstevel@tonic-gate int newfiledes) 563*0Sstevel@tonic-gate { 564*0Sstevel@tonic-gate file_attr_t *fap; 565*0Sstevel@tonic-gate 566*0Sstevel@tonic-gate if (filedes < 0 || newfiledes < 0) 567*0Sstevel@tonic-gate return (EBADF); 568*0Sstevel@tonic-gate if ((fap = lmalloc(sizeof (*fap))) == NULL) 569*0Sstevel@tonic-gate return (ENOMEM); 570*0Sstevel@tonic-gate 571*0Sstevel@tonic-gate fap->fa_type = FA_DUP2; 572*0Sstevel@tonic-gate fap->fa_filedes = filedes; 573*0Sstevel@tonic-gate fap->fa_newfiledes = newfiledes; 574*0Sstevel@tonic-gate add_file_attr(file_actions, fap); 575*0Sstevel@tonic-gate 576*0Sstevel@tonic-gate return (0); 577*0Sstevel@tonic-gate } 578*0Sstevel@tonic-gate 579*0Sstevel@tonic-gate #pragma weak posix_spawnattr_init = \ 580*0Sstevel@tonic-gate _posix_spawnattr_init 581*0Sstevel@tonic-gate int 582*0Sstevel@tonic-gate _posix_spawnattr_init( 583*0Sstevel@tonic-gate posix_spawnattr_t *attr) 584*0Sstevel@tonic-gate { 585*0Sstevel@tonic-gate spawn_attr_t *sap; 586*0Sstevel@tonic-gate 587*0Sstevel@tonic-gate if ((sap = lmalloc(sizeof (*sap))) == NULL) 588*0Sstevel@tonic-gate return (ENOMEM); 589*0Sstevel@tonic-gate 590*0Sstevel@tonic-gate /* 591*0Sstevel@tonic-gate * Add default stuff here? 592*0Sstevel@tonic-gate */ 593*0Sstevel@tonic-gate attr->__spawn_attrp = sap; 594*0Sstevel@tonic-gate return (0); 595*0Sstevel@tonic-gate } 596*0Sstevel@tonic-gate 597*0Sstevel@tonic-gate #pragma weak posix_spawnattr_destroy = \ 598*0Sstevel@tonic-gate _posix_spawnattr_destroy 599*0Sstevel@tonic-gate int 600*0Sstevel@tonic-gate _posix_spawnattr_destroy( 601*0Sstevel@tonic-gate posix_spawnattr_t *attr) 602*0Sstevel@tonic-gate { 603*0Sstevel@tonic-gate spawn_attr_t *sap = attr->__spawn_attrp; 604*0Sstevel@tonic-gate 605*0Sstevel@tonic-gate if (sap == NULL) 606*0Sstevel@tonic-gate return (EINVAL); 607*0Sstevel@tonic-gate 608*0Sstevel@tonic-gate /* 609*0Sstevel@tonic-gate * deallocate stuff here? 610*0Sstevel@tonic-gate */ 611*0Sstevel@tonic-gate lfree(sap, sizeof (*sap)); 612*0Sstevel@tonic-gate attr->__spawn_attrp = NULL; 613*0Sstevel@tonic-gate return (0); 614*0Sstevel@tonic-gate } 615*0Sstevel@tonic-gate 616*0Sstevel@tonic-gate #pragma weak posix_spawnattr_setflags = \ 617*0Sstevel@tonic-gate _posix_spawnattr_setflags 618*0Sstevel@tonic-gate int 619*0Sstevel@tonic-gate _posix_spawnattr_setflags( 620*0Sstevel@tonic-gate posix_spawnattr_t *attr, 621*0Sstevel@tonic-gate short flags) 622*0Sstevel@tonic-gate { 623*0Sstevel@tonic-gate spawn_attr_t *sap = attr->__spawn_attrp; 624*0Sstevel@tonic-gate 625*0Sstevel@tonic-gate if (sap == NULL || 626*0Sstevel@tonic-gate (flags & ~ALL_POSIX_SPAWN_FLAGS)) 627*0Sstevel@tonic-gate return (EINVAL); 628*0Sstevel@tonic-gate 629*0Sstevel@tonic-gate if (flags & (POSIX_SPAWN_SETSCHEDPARAM | POSIX_SPAWN_SETSCHEDULER)) { 630*0Sstevel@tonic-gate /* 631*0Sstevel@tonic-gate * Populate ts_class and rt_class. 632*0Sstevel@tonic-gate * We will need them in the child of vfork(). 633*0Sstevel@tonic-gate */ 634*0Sstevel@tonic-gate (void) _map_rtpri_to_gp(0); 635*0Sstevel@tonic-gate } 636*0Sstevel@tonic-gate 637*0Sstevel@tonic-gate sap->sa_psflags = flags; 638*0Sstevel@tonic-gate return (0); 639*0Sstevel@tonic-gate } 640*0Sstevel@tonic-gate 641*0Sstevel@tonic-gate #pragma weak posix_spawnattr_getflags = \ 642*0Sstevel@tonic-gate _posix_spawnattr_getflags 643*0Sstevel@tonic-gate int 644*0Sstevel@tonic-gate _posix_spawnattr_getflags( 645*0Sstevel@tonic-gate const posix_spawnattr_t *attr, 646*0Sstevel@tonic-gate short *flags) 647*0Sstevel@tonic-gate { 648*0Sstevel@tonic-gate spawn_attr_t *sap = attr->__spawn_attrp; 649*0Sstevel@tonic-gate 650*0Sstevel@tonic-gate if (sap == NULL) 651*0Sstevel@tonic-gate return (EINVAL); 652*0Sstevel@tonic-gate 653*0Sstevel@tonic-gate *flags = sap->sa_psflags; 654*0Sstevel@tonic-gate return (0); 655*0Sstevel@tonic-gate } 656*0Sstevel@tonic-gate 657*0Sstevel@tonic-gate #pragma weak posix_spawnattr_setpgroup = \ 658*0Sstevel@tonic-gate _posix_spawnattr_setpgroup 659*0Sstevel@tonic-gate int 660*0Sstevel@tonic-gate _posix_spawnattr_setpgroup( 661*0Sstevel@tonic-gate posix_spawnattr_t *attr, 662*0Sstevel@tonic-gate pid_t pgroup) 663*0Sstevel@tonic-gate { 664*0Sstevel@tonic-gate spawn_attr_t *sap = attr->__spawn_attrp; 665*0Sstevel@tonic-gate 666*0Sstevel@tonic-gate if (sap == NULL) 667*0Sstevel@tonic-gate return (EINVAL); 668*0Sstevel@tonic-gate 669*0Sstevel@tonic-gate sap->sa_pgroup = pgroup; 670*0Sstevel@tonic-gate return (0); 671*0Sstevel@tonic-gate } 672*0Sstevel@tonic-gate 673*0Sstevel@tonic-gate #pragma weak posix_spawnattr_getpgroup = \ 674*0Sstevel@tonic-gate _posix_spawnattr_getpgroup 675*0Sstevel@tonic-gate int 676*0Sstevel@tonic-gate _posix_spawnattr_getpgroup( 677*0Sstevel@tonic-gate const posix_spawnattr_t *attr, 678*0Sstevel@tonic-gate pid_t *pgroup) 679*0Sstevel@tonic-gate { 680*0Sstevel@tonic-gate spawn_attr_t *sap = attr->__spawn_attrp; 681*0Sstevel@tonic-gate 682*0Sstevel@tonic-gate if (sap == NULL) 683*0Sstevel@tonic-gate return (EINVAL); 684*0Sstevel@tonic-gate 685*0Sstevel@tonic-gate *pgroup = sap->sa_pgroup; 686*0Sstevel@tonic-gate return (0); 687*0Sstevel@tonic-gate } 688*0Sstevel@tonic-gate 689*0Sstevel@tonic-gate #pragma weak posix_spawnattr_setschedparam = \ 690*0Sstevel@tonic-gate _posix_spawnattr_setschedparam 691*0Sstevel@tonic-gate int 692*0Sstevel@tonic-gate _posix_spawnattr_setschedparam( 693*0Sstevel@tonic-gate posix_spawnattr_t *attr, 694*0Sstevel@tonic-gate const struct sched_param *schedparam) 695*0Sstevel@tonic-gate { 696*0Sstevel@tonic-gate spawn_attr_t *sap = attr->__spawn_attrp; 697*0Sstevel@tonic-gate 698*0Sstevel@tonic-gate if (sap == NULL) 699*0Sstevel@tonic-gate return (EINVAL); 700*0Sstevel@tonic-gate 701*0Sstevel@tonic-gate /* 702*0Sstevel@tonic-gate * Check validity? 703*0Sstevel@tonic-gate */ 704*0Sstevel@tonic-gate sap->sa_priority = schedparam->sched_priority; 705*0Sstevel@tonic-gate return (0); 706*0Sstevel@tonic-gate } 707*0Sstevel@tonic-gate 708*0Sstevel@tonic-gate #pragma weak posix_spawnattr_getschedparam = \ 709*0Sstevel@tonic-gate _posix_spawnattr_getschedparam 710*0Sstevel@tonic-gate int 711*0Sstevel@tonic-gate _posix_spawnattr_getschedparam( 712*0Sstevel@tonic-gate const posix_spawnattr_t *attr, 713*0Sstevel@tonic-gate struct sched_param *schedparam) 714*0Sstevel@tonic-gate { 715*0Sstevel@tonic-gate spawn_attr_t *sap = attr->__spawn_attrp; 716*0Sstevel@tonic-gate 717*0Sstevel@tonic-gate if (sap == NULL) 718*0Sstevel@tonic-gate return (EINVAL); 719*0Sstevel@tonic-gate 720*0Sstevel@tonic-gate schedparam->sched_priority = sap->sa_priority; 721*0Sstevel@tonic-gate return (0); 722*0Sstevel@tonic-gate } 723*0Sstevel@tonic-gate 724*0Sstevel@tonic-gate #pragma weak posix_spawnattr_setschedpolicy = \ 725*0Sstevel@tonic-gate _posix_spawnattr_setschedpolicy 726*0Sstevel@tonic-gate int 727*0Sstevel@tonic-gate _posix_spawnattr_setschedpolicy( 728*0Sstevel@tonic-gate posix_spawnattr_t *attr, 729*0Sstevel@tonic-gate int schedpolicy) 730*0Sstevel@tonic-gate { 731*0Sstevel@tonic-gate spawn_attr_t *sap = attr->__spawn_attrp; 732*0Sstevel@tonic-gate 733*0Sstevel@tonic-gate if (sap == NULL) 734*0Sstevel@tonic-gate return (EINVAL); 735*0Sstevel@tonic-gate 736*0Sstevel@tonic-gate switch (schedpolicy) { 737*0Sstevel@tonic-gate case SCHED_OTHER: 738*0Sstevel@tonic-gate case SCHED_FIFO: 739*0Sstevel@tonic-gate case SCHED_RR: 740*0Sstevel@tonic-gate break; 741*0Sstevel@tonic-gate default: 742*0Sstevel@tonic-gate return (EINVAL); 743*0Sstevel@tonic-gate } 744*0Sstevel@tonic-gate 745*0Sstevel@tonic-gate sap->sa_schedpolicy = schedpolicy; 746*0Sstevel@tonic-gate return (0); 747*0Sstevel@tonic-gate } 748*0Sstevel@tonic-gate 749*0Sstevel@tonic-gate #pragma weak posix_spawnattr_getschedpolicy = \ 750*0Sstevel@tonic-gate _posix_spawnattr_getschedpolicy 751*0Sstevel@tonic-gate int 752*0Sstevel@tonic-gate _posix_spawnattr_getschedpolicy( 753*0Sstevel@tonic-gate const posix_spawnattr_t *attr, 754*0Sstevel@tonic-gate int *schedpolicy) 755*0Sstevel@tonic-gate { 756*0Sstevel@tonic-gate spawn_attr_t *sap = attr->__spawn_attrp; 757*0Sstevel@tonic-gate 758*0Sstevel@tonic-gate if (sap == NULL) 759*0Sstevel@tonic-gate return (EINVAL); 760*0Sstevel@tonic-gate 761*0Sstevel@tonic-gate *schedpolicy = sap->sa_schedpolicy; 762*0Sstevel@tonic-gate return (0); 763*0Sstevel@tonic-gate } 764*0Sstevel@tonic-gate 765*0Sstevel@tonic-gate #pragma weak posix_spawnattr_setsigdefault = \ 766*0Sstevel@tonic-gate _posix_spawnattr_setsigdefault 767*0Sstevel@tonic-gate int 768*0Sstevel@tonic-gate _posix_spawnattr_setsigdefault( 769*0Sstevel@tonic-gate posix_spawnattr_t *attr, 770*0Sstevel@tonic-gate const sigset_t *sigdefault) 771*0Sstevel@tonic-gate { 772*0Sstevel@tonic-gate spawn_attr_t *sap = attr->__spawn_attrp; 773*0Sstevel@tonic-gate 774*0Sstevel@tonic-gate if (sap == NULL) 775*0Sstevel@tonic-gate return (EINVAL); 776*0Sstevel@tonic-gate 777*0Sstevel@tonic-gate sap->sa_sigdefault = *sigdefault; 778*0Sstevel@tonic-gate return (0); 779*0Sstevel@tonic-gate } 780*0Sstevel@tonic-gate 781*0Sstevel@tonic-gate #pragma weak posix_spawnattr_getsigdefault = \ 782*0Sstevel@tonic-gate _posix_spawnattr_getsigdefault 783*0Sstevel@tonic-gate int 784*0Sstevel@tonic-gate _posix_spawnattr_getsigdefault( 785*0Sstevel@tonic-gate const posix_spawnattr_t *attr, 786*0Sstevel@tonic-gate sigset_t *sigdefault) 787*0Sstevel@tonic-gate { 788*0Sstevel@tonic-gate spawn_attr_t *sap = attr->__spawn_attrp; 789*0Sstevel@tonic-gate 790*0Sstevel@tonic-gate if (sap == NULL) 791*0Sstevel@tonic-gate return (EINVAL); 792*0Sstevel@tonic-gate 793*0Sstevel@tonic-gate *sigdefault = sap->sa_sigdefault; 794*0Sstevel@tonic-gate return (0); 795*0Sstevel@tonic-gate } 796*0Sstevel@tonic-gate 797*0Sstevel@tonic-gate #pragma weak posix_spawnattr_setsigmask = \ 798*0Sstevel@tonic-gate _posix_spawnattr_setsigmask 799*0Sstevel@tonic-gate int 800*0Sstevel@tonic-gate _posix_spawnattr_setsigmask( 801*0Sstevel@tonic-gate posix_spawnattr_t *attr, 802*0Sstevel@tonic-gate const sigset_t *sigmask) 803*0Sstevel@tonic-gate { 804*0Sstevel@tonic-gate spawn_attr_t *sap = attr->__spawn_attrp; 805*0Sstevel@tonic-gate 806*0Sstevel@tonic-gate if (sap == NULL) 807*0Sstevel@tonic-gate return (EINVAL); 808*0Sstevel@tonic-gate 809*0Sstevel@tonic-gate sap->sa_sigmask = *sigmask; 810*0Sstevel@tonic-gate return (0); 811*0Sstevel@tonic-gate } 812*0Sstevel@tonic-gate 813*0Sstevel@tonic-gate #pragma weak posix_spawnattr_getsigmask = \ 814*0Sstevel@tonic-gate _posix_spawnattr_getsigmask 815*0Sstevel@tonic-gate int 816*0Sstevel@tonic-gate _posix_spawnattr_getsigmask( 817*0Sstevel@tonic-gate const posix_spawnattr_t *attr, 818*0Sstevel@tonic-gate sigset_t *sigmask) 819*0Sstevel@tonic-gate { 820*0Sstevel@tonic-gate spawn_attr_t *sap = attr->__spawn_attrp; 821*0Sstevel@tonic-gate 822*0Sstevel@tonic-gate if (sap == NULL) 823*0Sstevel@tonic-gate return (EINVAL); 824*0Sstevel@tonic-gate 825*0Sstevel@tonic-gate *sigmask = sap->sa_sigmask; 826*0Sstevel@tonic-gate return (0); 827*0Sstevel@tonic-gate } 828