10Sstevel@tonic-gate /* 20Sstevel@tonic-gate * CDDL HEADER START 30Sstevel@tonic-gate * 40Sstevel@tonic-gate * The contents of this file are subject to the terms of the 52248Sraf * Common Development and Distribution License (the "License"). 62248Sraf * You may not use this file except in compliance with the License. 70Sstevel@tonic-gate * 80Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 90Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 100Sstevel@tonic-gate * See the License for the specific language governing permissions 110Sstevel@tonic-gate * and limitations under the License. 120Sstevel@tonic-gate * 130Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 140Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 150Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 160Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 170Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 180Sstevel@tonic-gate * 190Sstevel@tonic-gate * CDDL HEADER END 200Sstevel@tonic-gate */ 212248Sraf 220Sstevel@tonic-gate /* 235891Sraf * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 240Sstevel@tonic-gate * Use is subject to license terms. 250Sstevel@tonic-gate */ 260Sstevel@tonic-gate 270Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 280Sstevel@tonic-gate 290Sstevel@tonic-gate #include "lint.h" 300Sstevel@tonic-gate #include "thr_uberdata.h" 313086Sraf #include <sys/libc_kernel.h> 320Sstevel@tonic-gate #include <sys/procset.h> 333235Sraf #include <sys/fork.h> 340Sstevel@tonic-gate #include <alloca.h> 350Sstevel@tonic-gate #include <spawn.h> 360Sstevel@tonic-gate 370Sstevel@tonic-gate #define ALL_POSIX_SPAWN_FLAGS \ 380Sstevel@tonic-gate (POSIX_SPAWN_RESETIDS | \ 390Sstevel@tonic-gate POSIX_SPAWN_SETPGROUP | \ 400Sstevel@tonic-gate POSIX_SPAWN_SETSIGDEF | \ 410Sstevel@tonic-gate POSIX_SPAWN_SETSIGMASK | \ 420Sstevel@tonic-gate POSIX_SPAWN_SETSCHEDPARAM | \ 433235Sraf POSIX_SPAWN_SETSCHEDULER | \ 443235Sraf POSIX_SPAWN_NOSIGCHLD_NP | \ 453235Sraf POSIX_SPAWN_WAITPID_NP) 460Sstevel@tonic-gate 470Sstevel@tonic-gate typedef struct { 486247Sraf int sa_psflags; /* POSIX_SPAWN_* flags */ 496247Sraf int sa_priority; 500Sstevel@tonic-gate int sa_schedpolicy; 510Sstevel@tonic-gate pid_t sa_pgroup; 520Sstevel@tonic-gate sigset_t sa_sigdefault; 530Sstevel@tonic-gate sigset_t sa_sigmask; 540Sstevel@tonic-gate } spawn_attr_t; 550Sstevel@tonic-gate 560Sstevel@tonic-gate typedef struct file_attr { 570Sstevel@tonic-gate struct file_attr *fa_next; /* circular list of file actions */ 580Sstevel@tonic-gate struct file_attr *fa_prev; 590Sstevel@tonic-gate enum {FA_OPEN, FA_CLOSE, FA_DUP2} fa_type; 600Sstevel@tonic-gate uint_t fa_pathsize; /* size of fa_path[] array */ 610Sstevel@tonic-gate char *fa_path; /* copied pathname for open() */ 620Sstevel@tonic-gate int fa_oflag; /* oflag for open() */ 630Sstevel@tonic-gate mode_t fa_mode; /* mode for open() */ 640Sstevel@tonic-gate int fa_filedes; /* file descriptor for open()/close() */ 650Sstevel@tonic-gate int fa_newfiledes; /* new file descriptor for dup2() */ 660Sstevel@tonic-gate } file_attr_t; 670Sstevel@tonic-gate 680Sstevel@tonic-gate extern int __lwp_sigmask(int, const sigset_t *, sigset_t *); 690Sstevel@tonic-gate extern int __sigaction(int, const struct sigaction *, struct sigaction *); 700Sstevel@tonic-gate 713086Sraf static int 720Sstevel@tonic-gate perform_flag_actions(spawn_attr_t *sap) 730Sstevel@tonic-gate { 740Sstevel@tonic-gate int sig; 750Sstevel@tonic-gate 760Sstevel@tonic-gate if (sap->sa_psflags & POSIX_SPAWN_SETSIGMASK) { 770Sstevel@tonic-gate (void) __lwp_sigmask(SIG_SETMASK, &sap->sa_sigmask, NULL); 780Sstevel@tonic-gate } 790Sstevel@tonic-gate 800Sstevel@tonic-gate if (sap->sa_psflags & POSIX_SPAWN_SETSIGDEF) { 810Sstevel@tonic-gate struct sigaction sigdfl; 820Sstevel@tonic-gate 836515Sraf (void) memset(&sigdfl, 0, sizeof (sigdfl)); 840Sstevel@tonic-gate for (sig = 1; sig < NSIG; sig++) { 856515Sraf if (sigismember(&sap->sa_sigdefault, sig)) 860Sstevel@tonic-gate (void) __sigaction(sig, &sigdfl, NULL); 870Sstevel@tonic-gate } 880Sstevel@tonic-gate } 890Sstevel@tonic-gate 900Sstevel@tonic-gate if (sap->sa_psflags & POSIX_SPAWN_RESETIDS) { 916515Sraf if (setgid(getgid()) != 0 || setuid(getuid()) != 0) 923086Sraf return (errno); 930Sstevel@tonic-gate } 940Sstevel@tonic-gate 950Sstevel@tonic-gate if (sap->sa_psflags & POSIX_SPAWN_SETPGROUP) { 966515Sraf if (setpgid(0, sap->sa_pgroup) != 0) 973086Sraf return (errno); 980Sstevel@tonic-gate } 990Sstevel@tonic-gate 1000Sstevel@tonic-gate if (sap->sa_psflags & POSIX_SPAWN_SETSCHEDULER) { 1016247Sraf if (setparam(P_LWPID, P_MYID, 1026247Sraf sap->sa_schedpolicy, sap->sa_priority) == -1) 1033086Sraf return (errno); 1040Sstevel@tonic-gate } else if (sap->sa_psflags & POSIX_SPAWN_SETSCHEDPARAM) { 1056247Sraf if (setprio(P_LWPID, P_MYID, sap->sa_priority, NULL) == -1) 1063086Sraf return (errno); 1070Sstevel@tonic-gate } 1083086Sraf 1093086Sraf return (0); 1100Sstevel@tonic-gate } 1110Sstevel@tonic-gate 1123086Sraf static int 1130Sstevel@tonic-gate perform_file_actions(file_attr_t *fap) 1140Sstevel@tonic-gate { 1150Sstevel@tonic-gate file_attr_t *froot = fap; 1160Sstevel@tonic-gate int fd; 1170Sstevel@tonic-gate 1180Sstevel@tonic-gate do { 1190Sstevel@tonic-gate switch (fap->fa_type) { 1200Sstevel@tonic-gate case FA_OPEN: 1216515Sraf fd = __open(fap->fa_path, 1225891Sraf fap->fa_oflag, fap->fa_mode); 1230Sstevel@tonic-gate if (fd < 0) 1243086Sraf return (errno); 1250Sstevel@tonic-gate if (fd != fap->fa_filedes) { 1266515Sraf if (__fcntl(fd, F_DUP2FD, fap->fa_filedes) < 0) 1273086Sraf return (errno); 1286515Sraf (void) __close(fd); 1290Sstevel@tonic-gate } 1300Sstevel@tonic-gate break; 1310Sstevel@tonic-gate case FA_CLOSE: 1326515Sraf if (__close(fap->fa_filedes) == -1) 1333086Sraf return (errno); 1340Sstevel@tonic-gate break; 1350Sstevel@tonic-gate case FA_DUP2: 1366515Sraf fd = __fcntl(fap->fa_filedes, F_DUP2FD, 1375891Sraf fap->fa_newfiledes); 1380Sstevel@tonic-gate if (fd < 0) 1393086Sraf return (errno); 1400Sstevel@tonic-gate break; 1410Sstevel@tonic-gate } 1420Sstevel@tonic-gate } while ((fap = fap->fa_next) != froot); 1433086Sraf 1443086Sraf return (0); 1453086Sraf } 1463086Sraf 1473235Sraf static int 1483235Sraf forkflags(spawn_attr_t *sap) 1493235Sraf { 1503235Sraf int flags = 0; 1513235Sraf 1523235Sraf if (sap != NULL) { 1533235Sraf if (sap->sa_psflags & POSIX_SPAWN_NOSIGCHLD_NP) 1543235Sraf flags |= FORK_NOSIGCHLD; 1553235Sraf if (sap->sa_psflags & POSIX_SPAWN_WAITPID_NP) 1563235Sraf flags |= FORK_WAITPID; 1573235Sraf } 1583235Sraf 1593235Sraf return (flags); 1603235Sraf } 1613235Sraf 1623086Sraf /* 1633086Sraf * set_error() / get_error() are used to guarantee that the local variable 1643086Sraf * 'error' is set correctly in memory on return from vfork() in the parent. 1653086Sraf */ 1663086Sraf 1673086Sraf static int 1683086Sraf set_error(int *errp, int err) 1693086Sraf { 1703086Sraf return (*errp = err); 1713086Sraf } 1723086Sraf 1733086Sraf static int 1743086Sraf get_error(int *errp) 1753086Sraf { 1763086Sraf return (*errp); 1770Sstevel@tonic-gate } 1780Sstevel@tonic-gate 1790Sstevel@tonic-gate /* 1800Sstevel@tonic-gate * For MT safety, do not invoke the dynamic linker after calling vfork(). 1810Sstevel@tonic-gate * If some other thread was in the dynamic linker when this thread's parent 1820Sstevel@tonic-gate * called vfork() then the dynamic linker's lock would still be held here 1830Sstevel@tonic-gate * (with a defunct owner) and we would deadlock ourself if we invoked it. 1840Sstevel@tonic-gate * 1850Sstevel@tonic-gate * Therefore, all of the functions we call here after returning from 186*6812Sraf * vforkx() in the child are not and must never be exported from libc 1870Sstevel@tonic-gate * as global symbols. To do so would risk invoking the dynamic linker. 1880Sstevel@tonic-gate */ 1890Sstevel@tonic-gate 1900Sstevel@tonic-gate int 191*6812Sraf posix_spawn( 1920Sstevel@tonic-gate pid_t *pidp, 1930Sstevel@tonic-gate const char *path, 1940Sstevel@tonic-gate const posix_spawn_file_actions_t *file_actions, 1950Sstevel@tonic-gate const posix_spawnattr_t *attrp, 1960Sstevel@tonic-gate char *const argv[], 1970Sstevel@tonic-gate char *const envp[]) 1980Sstevel@tonic-gate { 1990Sstevel@tonic-gate spawn_attr_t *sap = attrp? attrp->__spawn_attrp : NULL; 2000Sstevel@tonic-gate file_attr_t *fap = file_actions? file_actions->__file_attrp : NULL; 2013086Sraf int error; /* this will be set by the child */ 2020Sstevel@tonic-gate pid_t pid; 2030Sstevel@tonic-gate 2040Sstevel@tonic-gate if (attrp != NULL && sap == NULL) 2050Sstevel@tonic-gate return (EINVAL); 2060Sstevel@tonic-gate 207*6812Sraf switch (pid = vforkx(forkflags(sap))) { 2080Sstevel@tonic-gate case 0: /* child */ 2090Sstevel@tonic-gate break; 2100Sstevel@tonic-gate case -1: /* parent, failure */ 2110Sstevel@tonic-gate return (errno); 2120Sstevel@tonic-gate default: /* parent, success */ 2133086Sraf /* 2143086Sraf * We don't get here until the child exec()s or exit()s 2153086Sraf */ 2163086Sraf if (pidp != NULL && get_error(&error) == 0) 2170Sstevel@tonic-gate *pidp = pid; 2183086Sraf return (get_error(&error)); 2190Sstevel@tonic-gate } 2200Sstevel@tonic-gate 2210Sstevel@tonic-gate if (sap != NULL) 2223086Sraf if (set_error(&error, perform_flag_actions(sap)) != 0) 2236515Sraf _exit(_EVAPORATE); 2240Sstevel@tonic-gate 2250Sstevel@tonic-gate if (fap != NULL) 2263086Sraf if (set_error(&error, perform_file_actions(fap)) != 0) 2276515Sraf _exit(_EVAPORATE); 2280Sstevel@tonic-gate 2293086Sraf (void) set_error(&error, 0); 2306515Sraf (void) execve(path, argv, envp); 2313086Sraf (void) set_error(&error, errno); 2326515Sraf _exit(_EVAPORATE); 2330Sstevel@tonic-gate return (0); /* not reached */ 2340Sstevel@tonic-gate } 2350Sstevel@tonic-gate 2360Sstevel@tonic-gate /* 2370Sstevel@tonic-gate * Much of posix_spawnp() blatently stolen from execvp() (port/gen/execvp.c). 2380Sstevel@tonic-gate */ 2390Sstevel@tonic-gate 2405891Sraf extern int libc__xpg4; 2410Sstevel@tonic-gate 2420Sstevel@tonic-gate static const char * 2430Sstevel@tonic-gate execat(const char *s1, const char *s2, char *si) 2440Sstevel@tonic-gate { 2450Sstevel@tonic-gate int cnt = PATH_MAX + 1; 2460Sstevel@tonic-gate char *s; 2470Sstevel@tonic-gate char c; 2480Sstevel@tonic-gate 2490Sstevel@tonic-gate for (s = si; (c = *s1) != '\0' && c != ':'; s1++) { 2500Sstevel@tonic-gate if (cnt > 0) { 2510Sstevel@tonic-gate *s++ = c; 2520Sstevel@tonic-gate cnt--; 2530Sstevel@tonic-gate } 2540Sstevel@tonic-gate } 2550Sstevel@tonic-gate if (si != s && cnt > 0) { 2560Sstevel@tonic-gate *s++ = '/'; 2570Sstevel@tonic-gate cnt--; 2580Sstevel@tonic-gate } 2590Sstevel@tonic-gate for (; (c = *s2) != '\0' && cnt > 0; s2++) { 2600Sstevel@tonic-gate *s++ = c; 2610Sstevel@tonic-gate cnt--; 2620Sstevel@tonic-gate } 2630Sstevel@tonic-gate *s = '\0'; 2640Sstevel@tonic-gate return (*s1? ++s1: NULL); 2650Sstevel@tonic-gate } 2660Sstevel@tonic-gate 2670Sstevel@tonic-gate /* ARGSUSED */ 2680Sstevel@tonic-gate int 269*6812Sraf posix_spawnp( 2700Sstevel@tonic-gate pid_t *pidp, 2710Sstevel@tonic-gate const char *file, 2720Sstevel@tonic-gate const posix_spawn_file_actions_t *file_actions, 2730Sstevel@tonic-gate const posix_spawnattr_t *attrp, 2740Sstevel@tonic-gate char *const argv[], 2750Sstevel@tonic-gate char *const envp[]) 2760Sstevel@tonic-gate { 2770Sstevel@tonic-gate spawn_attr_t *sap = attrp? attrp->__spawn_attrp : NULL; 2780Sstevel@tonic-gate file_attr_t *fap = file_actions? file_actions->__file_attrp : NULL; 2790Sstevel@tonic-gate const char *pathstr = (strchr(file, '/') == NULL)? getenv("PATH") : ""; 2805891Sraf int xpg4 = libc__xpg4; 2813086Sraf int error; /* this will be set by the child */ 2820Sstevel@tonic-gate char path[PATH_MAX+4]; 2830Sstevel@tonic-gate const char *cp; 2840Sstevel@tonic-gate pid_t pid; 2850Sstevel@tonic-gate char **newargs; 2860Sstevel@tonic-gate int argc; 2870Sstevel@tonic-gate int i; 2880Sstevel@tonic-gate static const char *sun_path = "/bin/sh"; 2890Sstevel@tonic-gate static const char *xpg4_path = "/usr/xpg4/bin/sh"; 2900Sstevel@tonic-gate static const char *shell = "sh"; 2910Sstevel@tonic-gate 2920Sstevel@tonic-gate if (attrp != NULL && sap == NULL) 2930Sstevel@tonic-gate return (EINVAL); 2940Sstevel@tonic-gate 2953086Sraf if (*file == '\0') 2963086Sraf return (EACCES); 2973086Sraf 2980Sstevel@tonic-gate /* 2990Sstevel@tonic-gate * We may need to invoke the shell with a slightly modified 3000Sstevel@tonic-gate * argv[] array. To do this we need to preallocate the array. 3010Sstevel@tonic-gate * We must call alloca() before calling vfork() because doing 3020Sstevel@tonic-gate * it after vfork() (in the child) would corrupt the parent. 3030Sstevel@tonic-gate */ 3040Sstevel@tonic-gate for (argc = 0; argv[argc] != NULL; argc++) 3050Sstevel@tonic-gate continue; 3060Sstevel@tonic-gate newargs = alloca((argc + 2) * sizeof (char *)); 3070Sstevel@tonic-gate 308*6812Sraf switch (pid = vforkx(forkflags(sap))) { 3090Sstevel@tonic-gate case 0: /* child */ 3100Sstevel@tonic-gate break; 3110Sstevel@tonic-gate case -1: /* parent, failure */ 3120Sstevel@tonic-gate return (errno); 3130Sstevel@tonic-gate default: /* parent, success */ 3143086Sraf /* 3153086Sraf * We don't get here until the child exec()s or exit()s 3163086Sraf */ 3173086Sraf if (pidp != NULL && get_error(&error) == 0) 3180Sstevel@tonic-gate *pidp = pid; 3193086Sraf return (get_error(&error)); 3200Sstevel@tonic-gate } 3210Sstevel@tonic-gate 3220Sstevel@tonic-gate if (sap != NULL) 3233086Sraf if (set_error(&error, perform_flag_actions(sap)) != 0) 3246515Sraf _exit(_EVAPORATE); 3250Sstevel@tonic-gate 3260Sstevel@tonic-gate if (fap != NULL) 3273086Sraf if (set_error(&error, perform_file_actions(fap)) != 0) 3286515Sraf _exit(_EVAPORATE); 3290Sstevel@tonic-gate 3300Sstevel@tonic-gate if (pathstr == NULL) { 3310Sstevel@tonic-gate /* 3320Sstevel@tonic-gate * XPG4: pathstr is equivalent to _CS_PATH, except that 3330Sstevel@tonic-gate * :/usr/sbin is appended when root, and pathstr must end 3340Sstevel@tonic-gate * with a colon when not root. Keep these paths in sync 3350Sstevel@tonic-gate * with _CS_PATH in confstr.c. Note that pathstr must end 3360Sstevel@tonic-gate * with a colon when not root so that when file doesn't 3370Sstevel@tonic-gate * contain '/', the last call to execat() will result in an 3380Sstevel@tonic-gate * attempt to execv file from the current directory. 3390Sstevel@tonic-gate */ 3406515Sraf if (geteuid() == 0 || getuid() == 0) { 3410Sstevel@tonic-gate if (!xpg4) 3420Sstevel@tonic-gate pathstr = "/usr/sbin:/usr/ccs/bin:/usr/bin"; 3430Sstevel@tonic-gate else 3440Sstevel@tonic-gate pathstr = "/usr/xpg4/bin:/usr/ccs/bin:" 3450Sstevel@tonic-gate "/usr/bin:/opt/SUNWspro/bin:/usr/sbin"; 3460Sstevel@tonic-gate } else { 3470Sstevel@tonic-gate if (!xpg4) 3480Sstevel@tonic-gate pathstr = "/usr/ccs/bin:/usr/bin:"; 3490Sstevel@tonic-gate else 3500Sstevel@tonic-gate pathstr = "/usr/xpg4/bin:/usr/ccs/bin:" 3510Sstevel@tonic-gate "/usr/bin:/opt/SUNWspro/bin:"; 3520Sstevel@tonic-gate } 3530Sstevel@tonic-gate } 3540Sstevel@tonic-gate 3550Sstevel@tonic-gate cp = pathstr; 3560Sstevel@tonic-gate do { 3570Sstevel@tonic-gate cp = execat(cp, file, path); 3580Sstevel@tonic-gate /* 3590Sstevel@tonic-gate * 4025035 and 4038378 3600Sstevel@tonic-gate * if a filename begins with a "-" prepend "./" so that 3610Sstevel@tonic-gate * the shell can't interpret it as an option 3620Sstevel@tonic-gate */ 3630Sstevel@tonic-gate if (*path == '-') { 3640Sstevel@tonic-gate char *s; 3650Sstevel@tonic-gate 3660Sstevel@tonic-gate for (s = path; *s != '\0'; s++) 3670Sstevel@tonic-gate continue; 3680Sstevel@tonic-gate for (; s >= path; s--) 3690Sstevel@tonic-gate *(s + 2) = *s; 3700Sstevel@tonic-gate path[0] = '.'; 3710Sstevel@tonic-gate path[1] = '/'; 3720Sstevel@tonic-gate } 3733086Sraf (void) set_error(&error, 0); 3746515Sraf (void) execve(path, argv, envp); 3753086Sraf if (set_error(&error, errno) == ENOEXEC) { 3760Sstevel@tonic-gate newargs[0] = (char *)shell; 3770Sstevel@tonic-gate newargs[1] = path; 3780Sstevel@tonic-gate for (i = 1; i <= argc; i++) 3790Sstevel@tonic-gate newargs[i + 1] = argv[i]; 3803086Sraf (void) set_error(&error, 0); 3816515Sraf (void) execve(xpg4? xpg4_path : sun_path, 3823086Sraf newargs, envp); 3833086Sraf (void) set_error(&error, errno); 3846515Sraf _exit(_EVAPORATE); 3850Sstevel@tonic-gate } 3860Sstevel@tonic-gate } while (cp); 3876515Sraf _exit(_EVAPORATE); 3880Sstevel@tonic-gate return (0); /* not reached */ 3890Sstevel@tonic-gate } 3900Sstevel@tonic-gate 3910Sstevel@tonic-gate int 392*6812Sraf posix_spawn_file_actions_init( 3930Sstevel@tonic-gate posix_spawn_file_actions_t *file_actions) 3940Sstevel@tonic-gate { 3950Sstevel@tonic-gate file_actions->__file_attrp = NULL; 3960Sstevel@tonic-gate return (0); 3970Sstevel@tonic-gate } 3980Sstevel@tonic-gate 3990Sstevel@tonic-gate int 400*6812Sraf posix_spawn_file_actions_destroy( 4010Sstevel@tonic-gate posix_spawn_file_actions_t *file_actions) 4020Sstevel@tonic-gate { 4030Sstevel@tonic-gate file_attr_t *froot = file_actions->__file_attrp; 4040Sstevel@tonic-gate file_attr_t *fap; 4050Sstevel@tonic-gate file_attr_t *next; 4060Sstevel@tonic-gate 4070Sstevel@tonic-gate if ((fap = froot) != NULL) { 4080Sstevel@tonic-gate do { 4090Sstevel@tonic-gate next = fap->fa_next; 4100Sstevel@tonic-gate if (fap-> fa_type == FA_OPEN) 4110Sstevel@tonic-gate lfree(fap->fa_path, fap->fa_pathsize); 4120Sstevel@tonic-gate lfree(fap, sizeof (*fap)); 4130Sstevel@tonic-gate } while ((fap = next) != froot); 4140Sstevel@tonic-gate } 4150Sstevel@tonic-gate file_actions->__file_attrp = NULL; 4160Sstevel@tonic-gate return (0); 4170Sstevel@tonic-gate } 4180Sstevel@tonic-gate 4190Sstevel@tonic-gate static void 4200Sstevel@tonic-gate add_file_attr(posix_spawn_file_actions_t *file_actions, file_attr_t *fap) 4210Sstevel@tonic-gate { 4220Sstevel@tonic-gate file_attr_t *froot = file_actions->__file_attrp; 4230Sstevel@tonic-gate 4240Sstevel@tonic-gate if (froot == NULL) { 4250Sstevel@tonic-gate fap->fa_next = fap->fa_prev = fap; 4260Sstevel@tonic-gate file_actions->__file_attrp = fap; 4270Sstevel@tonic-gate } else { 4280Sstevel@tonic-gate fap->fa_next = froot; 4290Sstevel@tonic-gate fap->fa_prev = froot->fa_prev; 4300Sstevel@tonic-gate froot->fa_prev->fa_next = fap; 4310Sstevel@tonic-gate froot->fa_prev = fap; 4320Sstevel@tonic-gate } 4330Sstevel@tonic-gate } 4340Sstevel@tonic-gate 4350Sstevel@tonic-gate int 436*6812Sraf posix_spawn_file_actions_addopen( 4370Sstevel@tonic-gate posix_spawn_file_actions_t *file_actions, 4380Sstevel@tonic-gate int filedes, 4390Sstevel@tonic-gate const char *path, 4400Sstevel@tonic-gate int oflag, 4410Sstevel@tonic-gate mode_t mode) 4420Sstevel@tonic-gate { 4430Sstevel@tonic-gate file_attr_t *fap; 4440Sstevel@tonic-gate 4450Sstevel@tonic-gate if (filedes < 0) 4460Sstevel@tonic-gate return (EBADF); 4470Sstevel@tonic-gate if ((fap = lmalloc(sizeof (*fap))) == NULL) 4480Sstevel@tonic-gate return (ENOMEM); 4490Sstevel@tonic-gate 4500Sstevel@tonic-gate fap->fa_pathsize = strlen(path) + 1; 4510Sstevel@tonic-gate if ((fap->fa_path = lmalloc(fap->fa_pathsize)) == NULL) { 4520Sstevel@tonic-gate lfree(fap, sizeof (*fap)); 4530Sstevel@tonic-gate return (ENOMEM); 4540Sstevel@tonic-gate } 4550Sstevel@tonic-gate (void) strcpy(fap->fa_path, path); 4560Sstevel@tonic-gate 4570Sstevel@tonic-gate fap->fa_type = FA_OPEN; 4580Sstevel@tonic-gate fap->fa_oflag = oflag; 4590Sstevel@tonic-gate fap->fa_mode = mode; 4600Sstevel@tonic-gate fap->fa_filedes = filedes; 4610Sstevel@tonic-gate add_file_attr(file_actions, fap); 4620Sstevel@tonic-gate 4630Sstevel@tonic-gate return (0); 4640Sstevel@tonic-gate } 4650Sstevel@tonic-gate 4660Sstevel@tonic-gate int 467*6812Sraf posix_spawn_file_actions_addclose( 4680Sstevel@tonic-gate posix_spawn_file_actions_t *file_actions, 4690Sstevel@tonic-gate int filedes) 4700Sstevel@tonic-gate { 4710Sstevel@tonic-gate file_attr_t *fap; 4720Sstevel@tonic-gate 4730Sstevel@tonic-gate if (filedes < 0) 4740Sstevel@tonic-gate return (EBADF); 4750Sstevel@tonic-gate if ((fap = lmalloc(sizeof (*fap))) == NULL) 4760Sstevel@tonic-gate return (ENOMEM); 4770Sstevel@tonic-gate 4780Sstevel@tonic-gate fap->fa_type = FA_CLOSE; 4790Sstevel@tonic-gate fap->fa_filedes = filedes; 4800Sstevel@tonic-gate add_file_attr(file_actions, fap); 4810Sstevel@tonic-gate 4820Sstevel@tonic-gate return (0); 4830Sstevel@tonic-gate } 4840Sstevel@tonic-gate 4850Sstevel@tonic-gate int 486*6812Sraf posix_spawn_file_actions_adddup2( 4870Sstevel@tonic-gate posix_spawn_file_actions_t *file_actions, 4880Sstevel@tonic-gate int filedes, 4890Sstevel@tonic-gate int newfiledes) 4900Sstevel@tonic-gate { 4910Sstevel@tonic-gate file_attr_t *fap; 4920Sstevel@tonic-gate 4930Sstevel@tonic-gate if (filedes < 0 || newfiledes < 0) 4940Sstevel@tonic-gate return (EBADF); 4950Sstevel@tonic-gate if ((fap = lmalloc(sizeof (*fap))) == NULL) 4960Sstevel@tonic-gate return (ENOMEM); 4970Sstevel@tonic-gate 4980Sstevel@tonic-gate fap->fa_type = FA_DUP2; 4990Sstevel@tonic-gate fap->fa_filedes = filedes; 5000Sstevel@tonic-gate fap->fa_newfiledes = newfiledes; 5010Sstevel@tonic-gate add_file_attr(file_actions, fap); 5020Sstevel@tonic-gate 5030Sstevel@tonic-gate return (0); 5040Sstevel@tonic-gate } 5050Sstevel@tonic-gate 5060Sstevel@tonic-gate int 507*6812Sraf posix_spawnattr_init( 5080Sstevel@tonic-gate posix_spawnattr_t *attr) 5090Sstevel@tonic-gate { 5103235Sraf if ((attr->__spawn_attrp = lmalloc(sizeof (posix_spawnattr_t))) == NULL) 5110Sstevel@tonic-gate return (ENOMEM); 5120Sstevel@tonic-gate /* 5130Sstevel@tonic-gate * Add default stuff here? 5140Sstevel@tonic-gate */ 5150Sstevel@tonic-gate return (0); 5160Sstevel@tonic-gate } 5170Sstevel@tonic-gate 5180Sstevel@tonic-gate int 519*6812Sraf posix_spawnattr_destroy( 5200Sstevel@tonic-gate posix_spawnattr_t *attr) 5210Sstevel@tonic-gate { 5220Sstevel@tonic-gate spawn_attr_t *sap = attr->__spawn_attrp; 5230Sstevel@tonic-gate 5240Sstevel@tonic-gate if (sap == NULL) 5250Sstevel@tonic-gate return (EINVAL); 5260Sstevel@tonic-gate 5270Sstevel@tonic-gate /* 5280Sstevel@tonic-gate * deallocate stuff here? 5290Sstevel@tonic-gate */ 5300Sstevel@tonic-gate lfree(sap, sizeof (*sap)); 5310Sstevel@tonic-gate attr->__spawn_attrp = NULL; 5320Sstevel@tonic-gate return (0); 5330Sstevel@tonic-gate } 5340Sstevel@tonic-gate 5350Sstevel@tonic-gate int 536*6812Sraf posix_spawnattr_setflags( 5370Sstevel@tonic-gate posix_spawnattr_t *attr, 5380Sstevel@tonic-gate short flags) 5390Sstevel@tonic-gate { 5400Sstevel@tonic-gate spawn_attr_t *sap = attr->__spawn_attrp; 5410Sstevel@tonic-gate 5420Sstevel@tonic-gate if (sap == NULL || 5430Sstevel@tonic-gate (flags & ~ALL_POSIX_SPAWN_FLAGS)) 5440Sstevel@tonic-gate return (EINVAL); 5450Sstevel@tonic-gate 5460Sstevel@tonic-gate sap->sa_psflags = flags; 5470Sstevel@tonic-gate return (0); 5480Sstevel@tonic-gate } 5490Sstevel@tonic-gate 5500Sstevel@tonic-gate int 551*6812Sraf posix_spawnattr_getflags( 5520Sstevel@tonic-gate const posix_spawnattr_t *attr, 5530Sstevel@tonic-gate short *flags) 5540Sstevel@tonic-gate { 5550Sstevel@tonic-gate spawn_attr_t *sap = attr->__spawn_attrp; 5560Sstevel@tonic-gate 5570Sstevel@tonic-gate if (sap == NULL) 5580Sstevel@tonic-gate return (EINVAL); 5590Sstevel@tonic-gate 5600Sstevel@tonic-gate *flags = sap->sa_psflags; 5610Sstevel@tonic-gate return (0); 5620Sstevel@tonic-gate } 5630Sstevel@tonic-gate 5640Sstevel@tonic-gate int 565*6812Sraf posix_spawnattr_setpgroup( 5660Sstevel@tonic-gate posix_spawnattr_t *attr, 5670Sstevel@tonic-gate pid_t pgroup) 5680Sstevel@tonic-gate { 5690Sstevel@tonic-gate spawn_attr_t *sap = attr->__spawn_attrp; 5700Sstevel@tonic-gate 5710Sstevel@tonic-gate if (sap == NULL) 5720Sstevel@tonic-gate return (EINVAL); 5730Sstevel@tonic-gate 5740Sstevel@tonic-gate sap->sa_pgroup = pgroup; 5750Sstevel@tonic-gate return (0); 5760Sstevel@tonic-gate } 5770Sstevel@tonic-gate 5780Sstevel@tonic-gate int 579*6812Sraf posix_spawnattr_getpgroup( 5800Sstevel@tonic-gate const posix_spawnattr_t *attr, 5810Sstevel@tonic-gate pid_t *pgroup) 5820Sstevel@tonic-gate { 5830Sstevel@tonic-gate spawn_attr_t *sap = attr->__spawn_attrp; 5840Sstevel@tonic-gate 5850Sstevel@tonic-gate if (sap == NULL) 5860Sstevel@tonic-gate return (EINVAL); 5870Sstevel@tonic-gate 5880Sstevel@tonic-gate *pgroup = sap->sa_pgroup; 5890Sstevel@tonic-gate return (0); 5900Sstevel@tonic-gate } 5910Sstevel@tonic-gate 5920Sstevel@tonic-gate int 593*6812Sraf posix_spawnattr_setschedparam( 5940Sstevel@tonic-gate posix_spawnattr_t *attr, 5950Sstevel@tonic-gate const struct sched_param *schedparam) 5960Sstevel@tonic-gate { 5970Sstevel@tonic-gate spawn_attr_t *sap = attr->__spawn_attrp; 5980Sstevel@tonic-gate 5990Sstevel@tonic-gate if (sap == NULL) 6000Sstevel@tonic-gate return (EINVAL); 6010Sstevel@tonic-gate 6020Sstevel@tonic-gate /* 6030Sstevel@tonic-gate * Check validity? 6040Sstevel@tonic-gate */ 6050Sstevel@tonic-gate sap->sa_priority = schedparam->sched_priority; 6060Sstevel@tonic-gate return (0); 6070Sstevel@tonic-gate } 6080Sstevel@tonic-gate 6090Sstevel@tonic-gate int 610*6812Sraf posix_spawnattr_getschedparam( 6110Sstevel@tonic-gate const posix_spawnattr_t *attr, 6120Sstevel@tonic-gate struct sched_param *schedparam) 6130Sstevel@tonic-gate { 6140Sstevel@tonic-gate spawn_attr_t *sap = attr->__spawn_attrp; 6150Sstevel@tonic-gate 6160Sstevel@tonic-gate if (sap == NULL) 6170Sstevel@tonic-gate return (EINVAL); 6180Sstevel@tonic-gate 6190Sstevel@tonic-gate schedparam->sched_priority = sap->sa_priority; 6200Sstevel@tonic-gate return (0); 6210Sstevel@tonic-gate } 6220Sstevel@tonic-gate 6230Sstevel@tonic-gate int 624*6812Sraf posix_spawnattr_setschedpolicy( 6250Sstevel@tonic-gate posix_spawnattr_t *attr, 6260Sstevel@tonic-gate int schedpolicy) 6270Sstevel@tonic-gate { 6280Sstevel@tonic-gate spawn_attr_t *sap = attr->__spawn_attrp; 6290Sstevel@tonic-gate 6306247Sraf if (sap == NULL || schedpolicy == SCHED_SYS) 6310Sstevel@tonic-gate return (EINVAL); 6320Sstevel@tonic-gate 6336247Sraf /* 6346247Sraf * Cache the policy information for later use 6356247Sraf * by the vfork() child of posix_spawn(). 6366247Sraf */ 6376247Sraf if (get_info_by_policy(schedpolicy) == NULL) 6386247Sraf return (errno); 6390Sstevel@tonic-gate 6400Sstevel@tonic-gate sap->sa_schedpolicy = schedpolicy; 6410Sstevel@tonic-gate return (0); 6420Sstevel@tonic-gate } 6430Sstevel@tonic-gate 6440Sstevel@tonic-gate int 645*6812Sraf posix_spawnattr_getschedpolicy( 6460Sstevel@tonic-gate const posix_spawnattr_t *attr, 6470Sstevel@tonic-gate int *schedpolicy) 6480Sstevel@tonic-gate { 6490Sstevel@tonic-gate spawn_attr_t *sap = attr->__spawn_attrp; 6500Sstevel@tonic-gate 6510Sstevel@tonic-gate if (sap == NULL) 6520Sstevel@tonic-gate return (EINVAL); 6530Sstevel@tonic-gate 6540Sstevel@tonic-gate *schedpolicy = sap->sa_schedpolicy; 6550Sstevel@tonic-gate return (0); 6560Sstevel@tonic-gate } 6570Sstevel@tonic-gate 6580Sstevel@tonic-gate int 659*6812Sraf posix_spawnattr_setsigdefault( 6600Sstevel@tonic-gate posix_spawnattr_t *attr, 6610Sstevel@tonic-gate const sigset_t *sigdefault) 6620Sstevel@tonic-gate { 6630Sstevel@tonic-gate spawn_attr_t *sap = attr->__spawn_attrp; 6640Sstevel@tonic-gate 6650Sstevel@tonic-gate if (sap == NULL) 6660Sstevel@tonic-gate return (EINVAL); 6670Sstevel@tonic-gate 6680Sstevel@tonic-gate sap->sa_sigdefault = *sigdefault; 6690Sstevel@tonic-gate return (0); 6700Sstevel@tonic-gate } 6710Sstevel@tonic-gate 6720Sstevel@tonic-gate int 673*6812Sraf posix_spawnattr_getsigdefault( 6740Sstevel@tonic-gate const posix_spawnattr_t *attr, 6750Sstevel@tonic-gate sigset_t *sigdefault) 6760Sstevel@tonic-gate { 6770Sstevel@tonic-gate spawn_attr_t *sap = attr->__spawn_attrp; 6780Sstevel@tonic-gate 6790Sstevel@tonic-gate if (sap == NULL) 6800Sstevel@tonic-gate return (EINVAL); 6810Sstevel@tonic-gate 6820Sstevel@tonic-gate *sigdefault = sap->sa_sigdefault; 6830Sstevel@tonic-gate return (0); 6840Sstevel@tonic-gate } 6850Sstevel@tonic-gate 6860Sstevel@tonic-gate int 687*6812Sraf posix_spawnattr_setsigmask( 6880Sstevel@tonic-gate posix_spawnattr_t *attr, 6890Sstevel@tonic-gate const sigset_t *sigmask) 6900Sstevel@tonic-gate { 6910Sstevel@tonic-gate spawn_attr_t *sap = attr->__spawn_attrp; 6920Sstevel@tonic-gate 6930Sstevel@tonic-gate if (sap == NULL) 6940Sstevel@tonic-gate return (EINVAL); 6950Sstevel@tonic-gate 6960Sstevel@tonic-gate sap->sa_sigmask = *sigmask; 6970Sstevel@tonic-gate return (0); 6980Sstevel@tonic-gate } 6990Sstevel@tonic-gate 7000Sstevel@tonic-gate int 701*6812Sraf posix_spawnattr_getsigmask( 7020Sstevel@tonic-gate const posix_spawnattr_t *attr, 7030Sstevel@tonic-gate sigset_t *sigmask) 7040Sstevel@tonic-gate { 7050Sstevel@tonic-gate spawn_attr_t *sap = attr->__spawn_attrp; 7060Sstevel@tonic-gate 7070Sstevel@tonic-gate if (sap == NULL) 7080Sstevel@tonic-gate return (EINVAL); 7090Sstevel@tonic-gate 7100Sstevel@tonic-gate *sigmask = sap->sa_sigmask; 7110Sstevel@tonic-gate return (0); 7120Sstevel@tonic-gate } 713