1*7c478bd9Sstevel@tonic-gate /* 2*7c478bd9Sstevel@tonic-gate * CDDL HEADER START 3*7c478bd9Sstevel@tonic-gate * 4*7c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*7c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*7c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*7c478bd9Sstevel@tonic-gate * with the License. 8*7c478bd9Sstevel@tonic-gate * 9*7c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*7c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*7c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 12*7c478bd9Sstevel@tonic-gate * and limitations under the License. 13*7c478bd9Sstevel@tonic-gate * 14*7c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*7c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*7c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*7c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*7c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*7c478bd9Sstevel@tonic-gate * 20*7c478bd9Sstevel@tonic-gate * CDDL HEADER END 21*7c478bd9Sstevel@tonic-gate */ 22*7c478bd9Sstevel@tonic-gate /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 23*7c478bd9Sstevel@tonic-gate /* All Rights Reserved */ 24*7c478bd9Sstevel@tonic-gate 25*7c478bd9Sstevel@tonic-gate 26*7c478bd9Sstevel@tonic-gate /* 27*7c478bd9Sstevel@tonic-gate * Copyright (c) 1996, by Sun Microsystems, Inc. 28*7c478bd9Sstevel@tonic-gate * All rights reserved. 29*7c478bd9Sstevel@tonic-gate */ 30*7c478bd9Sstevel@tonic-gate 31*7c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 32*7c478bd9Sstevel@tonic-gate /* 33*7c478bd9Sstevel@tonic-gate * Job control for UNIX Shell 34*7c478bd9Sstevel@tonic-gate */ 35*7c478bd9Sstevel@tonic-gate 36*7c478bd9Sstevel@tonic-gate #include <sys/termio.h> 37*7c478bd9Sstevel@tonic-gate #include <sys/types.h> 38*7c478bd9Sstevel@tonic-gate #include <sys/wait.h> 39*7c478bd9Sstevel@tonic-gate #include <sys/param.h> 40*7c478bd9Sstevel@tonic-gate #include <fcntl.h> 41*7c478bd9Sstevel@tonic-gate #include <errno.h> 42*7c478bd9Sstevel@tonic-gate #include "defs.h" 43*7c478bd9Sstevel@tonic-gate 44*7c478bd9Sstevel@tonic-gate /* 45*7c478bd9Sstevel@tonic-gate * one of these for each active job 46*7c478bd9Sstevel@tonic-gate */ 47*7c478bd9Sstevel@tonic-gate 48*7c478bd9Sstevel@tonic-gate struct job 49*7c478bd9Sstevel@tonic-gate { 50*7c478bd9Sstevel@tonic-gate struct job *j_nxtp; /* next job in job ID order */ 51*7c478bd9Sstevel@tonic-gate struct job *j_curp; /* next job in job currency order */ 52*7c478bd9Sstevel@tonic-gate struct termios j_stty; /* termio save area when job stops */ 53*7c478bd9Sstevel@tonic-gate pid_t j_pid; /* job leader's process ID */ 54*7c478bd9Sstevel@tonic-gate pid_t j_pgid; /* job's process group ID */ 55*7c478bd9Sstevel@tonic-gate pid_t j_tgid; /* job's foreground process group ID */ 56*7c478bd9Sstevel@tonic-gate uint j_jid; /* job ID */ 57*7c478bd9Sstevel@tonic-gate ushort j_xval; /* exit code, or exit or stop signal */ 58*7c478bd9Sstevel@tonic-gate ushort j_flag; /* various status flags defined below */ 59*7c478bd9Sstevel@tonic-gate char *j_pwd; /* job's working directory */ 60*7c478bd9Sstevel@tonic-gate char *j_cmd; /* cmd used to invoke this job */ 61*7c478bd9Sstevel@tonic-gate }; 62*7c478bd9Sstevel@tonic-gate 63*7c478bd9Sstevel@tonic-gate /* defines for j_flag */ 64*7c478bd9Sstevel@tonic-gate 65*7c478bd9Sstevel@tonic-gate #define J_DUMPED 0001 /* job has core dumped */ 66*7c478bd9Sstevel@tonic-gate #define J_NOTIFY 0002 /* job has changed status */ 67*7c478bd9Sstevel@tonic-gate #define J_SAVETTY 0004 /* job was stopped in foreground, and its */ 68*7c478bd9Sstevel@tonic-gate /* termio settings were saved */ 69*7c478bd9Sstevel@tonic-gate #define J_STOPPED 0010 /* job has been stopped */ 70*7c478bd9Sstevel@tonic-gate #define J_SIGNALED 0020 /* job has received signal; j_xval has it */ 71*7c478bd9Sstevel@tonic-gate #define J_DONE 0040 /* job has finished */ 72*7c478bd9Sstevel@tonic-gate #define J_RUNNING 0100 /* job is currently running */ 73*7c478bd9Sstevel@tonic-gate #define J_FOREGND 0200 /* job was put in foreground by shell */ 74*7c478bd9Sstevel@tonic-gate 75*7c478bd9Sstevel@tonic-gate /* options to the printjob() function defined below */ 76*7c478bd9Sstevel@tonic-gate 77*7c478bd9Sstevel@tonic-gate #define PR_CUR 00001 /* print job currency ('+', '-', or ' ') */ 78*7c478bd9Sstevel@tonic-gate #define PR_JID 00002 /* print job ID */ 79*7c478bd9Sstevel@tonic-gate #define PR_PGID 00004 /* print job's process group ID */ 80*7c478bd9Sstevel@tonic-gate #define PR_STAT 00010 /* print status obtained from wait */ 81*7c478bd9Sstevel@tonic-gate #define PR_CMD 00020 /* print cmd that invoked job */ 82*7c478bd9Sstevel@tonic-gate #define PR_AMP 00040 /* print a '&' if in the background */ 83*7c478bd9Sstevel@tonic-gate #define PR_PWD 00100 /* print jobs present working directory */ 84*7c478bd9Sstevel@tonic-gate 85*7c478bd9Sstevel@tonic-gate #define PR_DFL (PR_CUR|PR_JID|PR_STAT|PR_CMD) /* default options */ 86*7c478bd9Sstevel@tonic-gate #define PR_LONG (PR_DFL|PR_PGID|PR_PWD) /* long options */ 87*7c478bd9Sstevel@tonic-gate 88*7c478bd9Sstevel@tonic-gate static struct termios mystty; /* default termio settings */ 89*7c478bd9Sstevel@tonic-gate static int eofflg, 90*7c478bd9Sstevel@tonic-gate jobcnt, /* number of active jobs */ 91*7c478bd9Sstevel@tonic-gate jobdone, /* number of active but finished jobs */ 92*7c478bd9Sstevel@tonic-gate jobnote; /* jobs requiring notification */ 93*7c478bd9Sstevel@tonic-gate static pid_t svpgid, /* saved process group ID */ 94*7c478bd9Sstevel@tonic-gate svtgid; /* saved foreground process group ID */ 95*7c478bd9Sstevel@tonic-gate static struct job *jobcur, /* active jobs listed in currency order */ 96*7c478bd9Sstevel@tonic-gate **nextjob, 97*7c478bd9Sstevel@tonic-gate *thisjob, 98*7c478bd9Sstevel@tonic-gate *joblst; /* active jobs listed in job ID order */ 99*7c478bd9Sstevel@tonic-gate 100*7c478bd9Sstevel@tonic-gate pid_t 101*7c478bd9Sstevel@tonic-gate tcgetpgrp(fd) 102*7c478bd9Sstevel@tonic-gate { 103*7c478bd9Sstevel@tonic-gate pid_t pgid; 104*7c478bd9Sstevel@tonic-gate if (ioctl(fd, TIOCGPGRP, &pgid) == 0) 105*7c478bd9Sstevel@tonic-gate return (pgid); 106*7c478bd9Sstevel@tonic-gate return ((pid_t)-1); 107*7c478bd9Sstevel@tonic-gate } 108*7c478bd9Sstevel@tonic-gate 109*7c478bd9Sstevel@tonic-gate int 110*7c478bd9Sstevel@tonic-gate tcsetpgrp(fd, pgid) 111*7c478bd9Sstevel@tonic-gate int fd; 112*7c478bd9Sstevel@tonic-gate pid_t pgid; 113*7c478bd9Sstevel@tonic-gate { 114*7c478bd9Sstevel@tonic-gate return (ioctl(fd, TIOCSPGRP, &pgid)); 115*7c478bd9Sstevel@tonic-gate } 116*7c478bd9Sstevel@tonic-gate 117*7c478bd9Sstevel@tonic-gate static struct job * 118*7c478bd9Sstevel@tonic-gate pgid2job(pgid) 119*7c478bd9Sstevel@tonic-gate register pid_t pgid; 120*7c478bd9Sstevel@tonic-gate { 121*7c478bd9Sstevel@tonic-gate register struct job *jp; 122*7c478bd9Sstevel@tonic-gate 123*7c478bd9Sstevel@tonic-gate for (jp = joblst; jp != 0 && jp->j_pid != pgid; jp = jp->j_nxtp) 124*7c478bd9Sstevel@tonic-gate continue; 125*7c478bd9Sstevel@tonic-gate 126*7c478bd9Sstevel@tonic-gate return (jp); 127*7c478bd9Sstevel@tonic-gate } 128*7c478bd9Sstevel@tonic-gate 129*7c478bd9Sstevel@tonic-gate static struct job * 130*7c478bd9Sstevel@tonic-gate str2job(cmd, job, mustbejob) 131*7c478bd9Sstevel@tonic-gate register char *cmd; 132*7c478bd9Sstevel@tonic-gate register char *job; 133*7c478bd9Sstevel@tonic-gate int mustbejob; 134*7c478bd9Sstevel@tonic-gate { 135*7c478bd9Sstevel@tonic-gate register struct job *jp, *njp; 136*7c478bd9Sstevel@tonic-gate register i; 137*7c478bd9Sstevel@tonic-gate 138*7c478bd9Sstevel@tonic-gate if (*job != '%') 139*7c478bd9Sstevel@tonic-gate jp = pgid2job(stoi(job)); 140*7c478bd9Sstevel@tonic-gate else if (*++job == 0 || *job == '+' || *job == '%' || *job == '-') { 141*7c478bd9Sstevel@tonic-gate jp = jobcur; 142*7c478bd9Sstevel@tonic-gate if (*job == '-' && jp) 143*7c478bd9Sstevel@tonic-gate jp = jp->j_curp; 144*7c478bd9Sstevel@tonic-gate } else if (*job >= '0' && *job <= '9') { 145*7c478bd9Sstevel@tonic-gate i = stoi(job); 146*7c478bd9Sstevel@tonic-gate for (jp = joblst; jp && jp->j_jid != i; jp = jp->j_nxtp) 147*7c478bd9Sstevel@tonic-gate continue; 148*7c478bd9Sstevel@tonic-gate } else if (*job == '?') { 149*7c478bd9Sstevel@tonic-gate register j; 150*7c478bd9Sstevel@tonic-gate register char *p; 151*7c478bd9Sstevel@tonic-gate i = strlen(++job); 152*7c478bd9Sstevel@tonic-gate jp = 0; 153*7c478bd9Sstevel@tonic-gate for (njp = jobcur; njp; njp = njp->j_curp) { 154*7c478bd9Sstevel@tonic-gate if (njp->j_jid == 0) 155*7c478bd9Sstevel@tonic-gate continue; 156*7c478bd9Sstevel@tonic-gate for (p = njp->j_cmd, j = strlen(p); j >= i; p++, j--) { 157*7c478bd9Sstevel@tonic-gate if (strncmp(job, p, i) == 0) { 158*7c478bd9Sstevel@tonic-gate if (jp != 0) 159*7c478bd9Sstevel@tonic-gate failed(cmd, ambiguous); 160*7c478bd9Sstevel@tonic-gate jp = njp; 161*7c478bd9Sstevel@tonic-gate break; 162*7c478bd9Sstevel@tonic-gate } 163*7c478bd9Sstevel@tonic-gate } 164*7c478bd9Sstevel@tonic-gate } 165*7c478bd9Sstevel@tonic-gate } else { 166*7c478bd9Sstevel@tonic-gate i = strlen(job); 167*7c478bd9Sstevel@tonic-gate jp = 0; 168*7c478bd9Sstevel@tonic-gate for (njp = jobcur; njp; njp = njp->j_curp) { 169*7c478bd9Sstevel@tonic-gate if (njp->j_jid == 0) 170*7c478bd9Sstevel@tonic-gate continue; 171*7c478bd9Sstevel@tonic-gate if (strncmp(job, njp->j_cmd, i) == 0) { 172*7c478bd9Sstevel@tonic-gate if (jp != 0) 173*7c478bd9Sstevel@tonic-gate failed(cmd, ambiguous); 174*7c478bd9Sstevel@tonic-gate jp = njp; 175*7c478bd9Sstevel@tonic-gate } 176*7c478bd9Sstevel@tonic-gate } 177*7c478bd9Sstevel@tonic-gate } 178*7c478bd9Sstevel@tonic-gate 179*7c478bd9Sstevel@tonic-gate if (mustbejob && (jp == 0 || jp->j_jid == 0)) 180*7c478bd9Sstevel@tonic-gate failed(cmd, nosuchjob); 181*7c478bd9Sstevel@tonic-gate 182*7c478bd9Sstevel@tonic-gate return (jp); 183*7c478bd9Sstevel@tonic-gate } 184*7c478bd9Sstevel@tonic-gate 185*7c478bd9Sstevel@tonic-gate static void 186*7c478bd9Sstevel@tonic-gate freejob(jp) 187*7c478bd9Sstevel@tonic-gate register struct job *jp; 188*7c478bd9Sstevel@tonic-gate { 189*7c478bd9Sstevel@tonic-gate register struct job **njp; 190*7c478bd9Sstevel@tonic-gate register struct job **cjp; 191*7c478bd9Sstevel@tonic-gate 192*7c478bd9Sstevel@tonic-gate for (njp = &joblst; *njp != jp; njp = &(*njp)->j_nxtp) 193*7c478bd9Sstevel@tonic-gate continue; 194*7c478bd9Sstevel@tonic-gate 195*7c478bd9Sstevel@tonic-gate for (cjp = &jobcur; *cjp != jp; cjp = &(*cjp)->j_curp) 196*7c478bd9Sstevel@tonic-gate continue; 197*7c478bd9Sstevel@tonic-gate 198*7c478bd9Sstevel@tonic-gate *njp = jp->j_nxtp; 199*7c478bd9Sstevel@tonic-gate *cjp = jp->j_curp; 200*7c478bd9Sstevel@tonic-gate free(jp); 201*7c478bd9Sstevel@tonic-gate jobcnt--; 202*7c478bd9Sstevel@tonic-gate jobdone--; 203*7c478bd9Sstevel@tonic-gate } 204*7c478bd9Sstevel@tonic-gate 205*7c478bd9Sstevel@tonic-gate /* 206*7c478bd9Sstevel@tonic-gate * Collect the foreground job. 207*7c478bd9Sstevel@tonic-gate * Used in the case where the subshell wants 208*7c478bd9Sstevel@tonic-gate * to exit, but needs to wait until the fg job 209*7c478bd9Sstevel@tonic-gate * is done. 210*7c478bd9Sstevel@tonic-gate */ 211*7c478bd9Sstevel@tonic-gate collect_fg_job() 212*7c478bd9Sstevel@tonic-gate { 213*7c478bd9Sstevel@tonic-gate register struct job *jp; 214*7c478bd9Sstevel@tonic-gate register pid_t pid; 215*7c478bd9Sstevel@tonic-gate int stat; 216*7c478bd9Sstevel@tonic-gate 217*7c478bd9Sstevel@tonic-gate for (jp = joblst; jp; jp = jp->j_nxtp) 218*7c478bd9Sstevel@tonic-gate if (jp->j_flag & J_FOREGND) 219*7c478bd9Sstevel@tonic-gate break; 220*7c478bd9Sstevel@tonic-gate 221*7c478bd9Sstevel@tonic-gate if (!jp) 222*7c478bd9Sstevel@tonic-gate /* no foreground job */ 223*7c478bd9Sstevel@tonic-gate return; 224*7c478bd9Sstevel@tonic-gate 225*7c478bd9Sstevel@tonic-gate /* 226*7c478bd9Sstevel@tonic-gate * Wait on fg job until wait succeeds 227*7c478bd9Sstevel@tonic-gate * or it fails due to no waitable children. 228*7c478bd9Sstevel@tonic-gate */ 229*7c478bd9Sstevel@tonic-gate 230*7c478bd9Sstevel@tonic-gate while (1) { 231*7c478bd9Sstevel@tonic-gate errno = 0; 232*7c478bd9Sstevel@tonic-gate pid = waitpid(jp->j_pid, &stat, 0); 233*7c478bd9Sstevel@tonic-gate if (pid == jp->j_pid || (pid == -1 && errno == ECHILD)) 234*7c478bd9Sstevel@tonic-gate break; 235*7c478bd9Sstevel@tonic-gate } 236*7c478bd9Sstevel@tonic-gate } 237*7c478bd9Sstevel@tonic-gate 238*7c478bd9Sstevel@tonic-gate /* 239*7c478bd9Sstevel@tonic-gate * analyze the status of a job 240*7c478bd9Sstevel@tonic-gate */ 241*7c478bd9Sstevel@tonic-gate 242*7c478bd9Sstevel@tonic-gate static int 243*7c478bd9Sstevel@tonic-gate statjob(jp, stat, fg, rc) 244*7c478bd9Sstevel@tonic-gate register struct job *jp; 245*7c478bd9Sstevel@tonic-gate register stat; 246*7c478bd9Sstevel@tonic-gate int fg; 247*7c478bd9Sstevel@tonic-gate int rc; 248*7c478bd9Sstevel@tonic-gate { 249*7c478bd9Sstevel@tonic-gate pid_t tgid; 250*7c478bd9Sstevel@tonic-gate int done = 0; 251*7c478bd9Sstevel@tonic-gate 252*7c478bd9Sstevel@tonic-gate if (WIFCONTINUED(stat)) { 253*7c478bd9Sstevel@tonic-gate if (jp->j_flag & J_STOPPED) { 254*7c478bd9Sstevel@tonic-gate jp->j_flag &= ~(J_STOPPED|J_SIGNALED|J_SAVETTY); 255*7c478bd9Sstevel@tonic-gate jp->j_flag |= J_RUNNING; 256*7c478bd9Sstevel@tonic-gate if (!fg && jp->j_jid) { 257*7c478bd9Sstevel@tonic-gate jp->j_flag |= J_NOTIFY; 258*7c478bd9Sstevel@tonic-gate jobnote++; 259*7c478bd9Sstevel@tonic-gate } 260*7c478bd9Sstevel@tonic-gate } 261*7c478bd9Sstevel@tonic-gate } else if (WIFSTOPPED(stat)) { 262*7c478bd9Sstevel@tonic-gate jp->j_xval = WSTOPSIG(stat); 263*7c478bd9Sstevel@tonic-gate jp->j_flag &= ~J_RUNNING; 264*7c478bd9Sstevel@tonic-gate jp->j_flag |= (J_SIGNALED|J_STOPPED); 265*7c478bd9Sstevel@tonic-gate jp->j_pgid = getpgid(jp->j_pid); 266*7c478bd9Sstevel@tonic-gate jp->j_tgid = jp->j_pgid; 267*7c478bd9Sstevel@tonic-gate if (fg) { 268*7c478bd9Sstevel@tonic-gate if (tgid = settgid(mypgid, jp->j_pgid)) 269*7c478bd9Sstevel@tonic-gate jp->j_tgid = tgid; 270*7c478bd9Sstevel@tonic-gate else { 271*7c478bd9Sstevel@tonic-gate jp->j_flag |= J_SAVETTY; 272*7c478bd9Sstevel@tonic-gate tcgetattr(0, &jp->j_stty); 273*7c478bd9Sstevel@tonic-gate (void) tcsetattr(0, TCSANOW, &mystty); 274*7c478bd9Sstevel@tonic-gate } 275*7c478bd9Sstevel@tonic-gate } 276*7c478bd9Sstevel@tonic-gate if (jp->j_jid) { 277*7c478bd9Sstevel@tonic-gate jp->j_flag |= J_NOTIFY; 278*7c478bd9Sstevel@tonic-gate jobnote++; 279*7c478bd9Sstevel@tonic-gate } 280*7c478bd9Sstevel@tonic-gate } else { 281*7c478bd9Sstevel@tonic-gate jp->j_flag &= ~J_RUNNING; 282*7c478bd9Sstevel@tonic-gate jp->j_flag |= J_DONE; 283*7c478bd9Sstevel@tonic-gate done++; 284*7c478bd9Sstevel@tonic-gate jobdone++; 285*7c478bd9Sstevel@tonic-gate if (WIFSIGNALED(stat)) { 286*7c478bd9Sstevel@tonic-gate jp->j_xval = WTERMSIG(stat); 287*7c478bd9Sstevel@tonic-gate jp->j_flag |= J_SIGNALED; 288*7c478bd9Sstevel@tonic-gate if (WCOREDUMP(stat)) 289*7c478bd9Sstevel@tonic-gate jp->j_flag |= J_DUMPED; 290*7c478bd9Sstevel@tonic-gate if (!fg || jp->j_xval != SIGINT) { 291*7c478bd9Sstevel@tonic-gate jp->j_flag |= J_NOTIFY; 292*7c478bd9Sstevel@tonic-gate jobnote++; 293*7c478bd9Sstevel@tonic-gate } 294*7c478bd9Sstevel@tonic-gate } else { /* WIFEXITED */ 295*7c478bd9Sstevel@tonic-gate jp->j_xval = WEXITSTATUS(stat); 296*7c478bd9Sstevel@tonic-gate jp->j_flag &= ~J_SIGNALED; 297*7c478bd9Sstevel@tonic-gate if (!fg && jp->j_jid) { 298*7c478bd9Sstevel@tonic-gate jp->j_flag |= J_NOTIFY; 299*7c478bd9Sstevel@tonic-gate jobnote++; 300*7c478bd9Sstevel@tonic-gate } 301*7c478bd9Sstevel@tonic-gate } 302*7c478bd9Sstevel@tonic-gate if (fg) { 303*7c478bd9Sstevel@tonic-gate if (!settgid(mypgid, jp->j_pgid) || 304*7c478bd9Sstevel@tonic-gate !settgid(mypgid, getpgid(jp->j_pid))) 305*7c478bd9Sstevel@tonic-gate tcgetattr(0, &mystty); 306*7c478bd9Sstevel@tonic-gate } 307*7c478bd9Sstevel@tonic-gate } 308*7c478bd9Sstevel@tonic-gate if (rc) { 309*7c478bd9Sstevel@tonic-gate exitval = jp->j_xval; 310*7c478bd9Sstevel@tonic-gate if (jp->j_flag & J_SIGNALED) 311*7c478bd9Sstevel@tonic-gate exitval |= SIGFLG; 312*7c478bd9Sstevel@tonic-gate exitset(); 313*7c478bd9Sstevel@tonic-gate } 314*7c478bd9Sstevel@tonic-gate if (done && !(jp->j_flag & J_NOTIFY)) 315*7c478bd9Sstevel@tonic-gate freejob(jp); 316*7c478bd9Sstevel@tonic-gate return (done); 317*7c478bd9Sstevel@tonic-gate } 318*7c478bd9Sstevel@tonic-gate 319*7c478bd9Sstevel@tonic-gate /* 320*7c478bd9Sstevel@tonic-gate * collect the status of jobs that have recently exited or stopped - 321*7c478bd9Sstevel@tonic-gate * if wnohang == WNOHANG, wait until error, or all jobs are accounted for; 322*7c478bd9Sstevel@tonic-gate * 323*7c478bd9Sstevel@tonic-gate * called after each command is executed, with wnohang == 0, and as part 324*7c478bd9Sstevel@tonic-gate * of "wait" builtin with wnohang == WNOHANG 325*7c478bd9Sstevel@tonic-gate * 326*7c478bd9Sstevel@tonic-gate * We do not need to call chktrap here if waitpid(2) is called with 327*7c478bd9Sstevel@tonic-gate * wnohang == 0, because that only happens from syswait() which is called 328*7c478bd9Sstevel@tonic-gate * from builtin() where chktrap() is already called. 329*7c478bd9Sstevel@tonic-gate */ 330*7c478bd9Sstevel@tonic-gate 331*7c478bd9Sstevel@tonic-gate static void 332*7c478bd9Sstevel@tonic-gate collectjobs(wnohang) 333*7c478bd9Sstevel@tonic-gate { 334*7c478bd9Sstevel@tonic-gate pid_t pid; 335*7c478bd9Sstevel@tonic-gate register struct job *jp; 336*7c478bd9Sstevel@tonic-gate int stat, n; 337*7c478bd9Sstevel@tonic-gate int wflags; 338*7c478bd9Sstevel@tonic-gate 339*7c478bd9Sstevel@tonic-gate if ((flags & (monitorflg|jcflg|jcoff)) == (monitorflg|jcflg)) 340*7c478bd9Sstevel@tonic-gate wflags = WUNTRACED|WCONTINUED; 341*7c478bd9Sstevel@tonic-gate else 342*7c478bd9Sstevel@tonic-gate wflags = 0; 343*7c478bd9Sstevel@tonic-gate 344*7c478bd9Sstevel@tonic-gate for (n = jobcnt - jobdone; n > 0; n--) { 345*7c478bd9Sstevel@tonic-gate if ((pid = waitpid(-1, &stat, wnohang|wflags)) <= 0) 346*7c478bd9Sstevel@tonic-gate break; 347*7c478bd9Sstevel@tonic-gate if (jp = pgid2job(pid)) 348*7c478bd9Sstevel@tonic-gate (void) statjob(jp, stat, 0, 0); 349*7c478bd9Sstevel@tonic-gate } 350*7c478bd9Sstevel@tonic-gate 351*7c478bd9Sstevel@tonic-gate } 352*7c478bd9Sstevel@tonic-gate 353*7c478bd9Sstevel@tonic-gate void 354*7c478bd9Sstevel@tonic-gate freejobs() 355*7c478bd9Sstevel@tonic-gate { 356*7c478bd9Sstevel@tonic-gate register struct job *jp; 357*7c478bd9Sstevel@tonic-gate 358*7c478bd9Sstevel@tonic-gate collectjobs(WNOHANG); 359*7c478bd9Sstevel@tonic-gate 360*7c478bd9Sstevel@tonic-gate if (jobnote) { 361*7c478bd9Sstevel@tonic-gate register int savefd = setb(2); 362*7c478bd9Sstevel@tonic-gate for (jp = joblst; jp; jp = jp->j_nxtp) { 363*7c478bd9Sstevel@tonic-gate if (jp->j_flag & J_NOTIFY) { 364*7c478bd9Sstevel@tonic-gate if (jp->j_jid) 365*7c478bd9Sstevel@tonic-gate printjob(jp, PR_DFL); 366*7c478bd9Sstevel@tonic-gate else if (jp->j_flag & J_FOREGND) 367*7c478bd9Sstevel@tonic-gate printjob(jp, PR_STAT); 368*7c478bd9Sstevel@tonic-gate else 369*7c478bd9Sstevel@tonic-gate printjob(jp, PR_STAT|PR_PGID); 370*7c478bd9Sstevel@tonic-gate } 371*7c478bd9Sstevel@tonic-gate } 372*7c478bd9Sstevel@tonic-gate (void) setb(savefd); 373*7c478bd9Sstevel@tonic-gate } 374*7c478bd9Sstevel@tonic-gate 375*7c478bd9Sstevel@tonic-gate if (jobdone) { 376*7c478bd9Sstevel@tonic-gate for (jp = joblst; jp; jp = jp->j_nxtp) { 377*7c478bd9Sstevel@tonic-gate if (jp->j_flag & J_DONE) 378*7c478bd9Sstevel@tonic-gate freejob(jp); 379*7c478bd9Sstevel@tonic-gate } 380*7c478bd9Sstevel@tonic-gate } 381*7c478bd9Sstevel@tonic-gate } 382*7c478bd9Sstevel@tonic-gate 383*7c478bd9Sstevel@tonic-gate static void 384*7c478bd9Sstevel@tonic-gate waitjob(jp) 385*7c478bd9Sstevel@tonic-gate register struct job *jp; 386*7c478bd9Sstevel@tonic-gate { 387*7c478bd9Sstevel@tonic-gate int stat; 388*7c478bd9Sstevel@tonic-gate int done; 389*7c478bd9Sstevel@tonic-gate pid_t pid = jp->j_pid; 390*7c478bd9Sstevel@tonic-gate int wflags; 391*7c478bd9Sstevel@tonic-gate int ret = 0; 392*7c478bd9Sstevel@tonic-gate int err = 0; 393*7c478bd9Sstevel@tonic-gate 394*7c478bd9Sstevel@tonic-gate if ((flags & (monitorflg|jcflg|jcoff)) == (monitorflg|jcflg)) 395*7c478bd9Sstevel@tonic-gate wflags = WUNTRACED; 396*7c478bd9Sstevel@tonic-gate else 397*7c478bd9Sstevel@tonic-gate wflags = 0; 398*7c478bd9Sstevel@tonic-gate do { 399*7c478bd9Sstevel@tonic-gate errno = 0; 400*7c478bd9Sstevel@tonic-gate ret = waitpid(pid, &stat, wflags|WNOWAIT); 401*7c478bd9Sstevel@tonic-gate err = errno; 402*7c478bd9Sstevel@tonic-gate if (ret == -1 && err == ECHILD) { 403*7c478bd9Sstevel@tonic-gate stat = 0; 404*7c478bd9Sstevel@tonic-gate break; 405*7c478bd9Sstevel@tonic-gate } 406*7c478bd9Sstevel@tonic-gate } while (ret != pid); 407*7c478bd9Sstevel@tonic-gate 408*7c478bd9Sstevel@tonic-gate done = statjob(jp, stat, 1, 1); 409*7c478bd9Sstevel@tonic-gate waitpid(pid, 0, wflags); 410*7c478bd9Sstevel@tonic-gate if (done && exitval && (flags & errflg)) 411*7c478bd9Sstevel@tonic-gate exitsh(exitval); 412*7c478bd9Sstevel@tonic-gate flags |= eflag; 413*7c478bd9Sstevel@tonic-gate } 414*7c478bd9Sstevel@tonic-gate 415*7c478bd9Sstevel@tonic-gate /* 416*7c478bd9Sstevel@tonic-gate * modify the foreground process group to *new* only if the 417*7c478bd9Sstevel@tonic-gate * current foreground process group is equal to *expected* 418*7c478bd9Sstevel@tonic-gate */ 419*7c478bd9Sstevel@tonic-gate 420*7c478bd9Sstevel@tonic-gate int 421*7c478bd9Sstevel@tonic-gate settgid(new, expected) 422*7c478bd9Sstevel@tonic-gate pid_t new, expected; 423*7c478bd9Sstevel@tonic-gate { 424*7c478bd9Sstevel@tonic-gate register pid_t current = tcgetpgrp(0); 425*7c478bd9Sstevel@tonic-gate 426*7c478bd9Sstevel@tonic-gate if (current != expected) 427*7c478bd9Sstevel@tonic-gate return (current); 428*7c478bd9Sstevel@tonic-gate 429*7c478bd9Sstevel@tonic-gate if (new != current) 430*7c478bd9Sstevel@tonic-gate tcsetpgrp(0, new); 431*7c478bd9Sstevel@tonic-gate 432*7c478bd9Sstevel@tonic-gate return (0); 433*7c478bd9Sstevel@tonic-gate } 434*7c478bd9Sstevel@tonic-gate 435*7c478bd9Sstevel@tonic-gate static void 436*7c478bd9Sstevel@tonic-gate restartjob(jp, fg) 437*7c478bd9Sstevel@tonic-gate register struct job *jp; 438*7c478bd9Sstevel@tonic-gate { 439*7c478bd9Sstevel@tonic-gate if (jp != jobcur) { 440*7c478bd9Sstevel@tonic-gate register struct job *t; 441*7c478bd9Sstevel@tonic-gate for (t = jobcur; t->j_curp != jp; t = t->j_curp); 442*7c478bd9Sstevel@tonic-gate t->j_curp = jp->j_curp; 443*7c478bd9Sstevel@tonic-gate jp->j_curp = jobcur; 444*7c478bd9Sstevel@tonic-gate jobcur = jp; 445*7c478bd9Sstevel@tonic-gate } 446*7c478bd9Sstevel@tonic-gate if (fg) { 447*7c478bd9Sstevel@tonic-gate if (jp->j_flag & J_SAVETTY) { 448*7c478bd9Sstevel@tonic-gate jp->j_stty.c_lflag &= ~TOSTOP; 449*7c478bd9Sstevel@tonic-gate jp->j_stty.c_lflag |= (mystty.c_lflag&TOSTOP); 450*7c478bd9Sstevel@tonic-gate jp->j_stty.c_cc[VSUSP] = mystty.c_cc[VSUSP]; 451*7c478bd9Sstevel@tonic-gate jp->j_stty.c_cc[VDSUSP] = mystty.c_cc[VDSUSP]; 452*7c478bd9Sstevel@tonic-gate (void) tcsetattr(0, TCSADRAIN, &jp->j_stty); 453*7c478bd9Sstevel@tonic-gate } 454*7c478bd9Sstevel@tonic-gate (void) settgid(jp->j_tgid, mypgid); 455*7c478bd9Sstevel@tonic-gate } 456*7c478bd9Sstevel@tonic-gate (void) kill(-(jp->j_pgid), SIGCONT); 457*7c478bd9Sstevel@tonic-gate if (jp->j_tgid != jp->j_pgid) 458*7c478bd9Sstevel@tonic-gate (void) kill(-(jp->j_tgid), SIGCONT); 459*7c478bd9Sstevel@tonic-gate jp->j_flag &= ~(J_STOPPED|J_SIGNALED|J_SAVETTY); 460*7c478bd9Sstevel@tonic-gate jp->j_flag |= J_RUNNING; 461*7c478bd9Sstevel@tonic-gate if (fg) { 462*7c478bd9Sstevel@tonic-gate jp->j_flag |= J_FOREGND; 463*7c478bd9Sstevel@tonic-gate printjob(jp, PR_JID|PR_CMD); 464*7c478bd9Sstevel@tonic-gate waitjob(jp); 465*7c478bd9Sstevel@tonic-gate } else { 466*7c478bd9Sstevel@tonic-gate jp->j_flag &= ~J_FOREGND; 467*7c478bd9Sstevel@tonic-gate printjob(jp, PR_JID|PR_CMD|PR_AMP); 468*7c478bd9Sstevel@tonic-gate } 469*7c478bd9Sstevel@tonic-gate } 470*7c478bd9Sstevel@tonic-gate 471*7c478bd9Sstevel@tonic-gate static 472*7c478bd9Sstevel@tonic-gate printjob(jp, propts) 473*7c478bd9Sstevel@tonic-gate register struct job *jp; 474*7c478bd9Sstevel@tonic-gate { 475*7c478bd9Sstevel@tonic-gate int sp = 0; 476*7c478bd9Sstevel@tonic-gate 477*7c478bd9Sstevel@tonic-gate if (jp->j_flag & J_NOTIFY) { 478*7c478bd9Sstevel@tonic-gate jobnote--; 479*7c478bd9Sstevel@tonic-gate jp->j_flag &= ~J_NOTIFY; 480*7c478bd9Sstevel@tonic-gate } 481*7c478bd9Sstevel@tonic-gate 482*7c478bd9Sstevel@tonic-gate if (propts & PR_JID) { 483*7c478bd9Sstevel@tonic-gate prc_buff('['); 484*7c478bd9Sstevel@tonic-gate prn_buff(jp->j_jid); 485*7c478bd9Sstevel@tonic-gate prc_buff(']'); 486*7c478bd9Sstevel@tonic-gate sp = 1; 487*7c478bd9Sstevel@tonic-gate } 488*7c478bd9Sstevel@tonic-gate 489*7c478bd9Sstevel@tonic-gate if (propts & PR_CUR) { 490*7c478bd9Sstevel@tonic-gate while (sp-- > 0) 491*7c478bd9Sstevel@tonic-gate prc_buff(SPACE); 492*7c478bd9Sstevel@tonic-gate sp = 1; 493*7c478bd9Sstevel@tonic-gate if (jobcur == jp) 494*7c478bd9Sstevel@tonic-gate prc_buff('+'); 495*7c478bd9Sstevel@tonic-gate else if (jobcur != 0 && jobcur->j_curp == jp) 496*7c478bd9Sstevel@tonic-gate prc_buff('-'); 497*7c478bd9Sstevel@tonic-gate else 498*7c478bd9Sstevel@tonic-gate sp++; 499*7c478bd9Sstevel@tonic-gate } 500*7c478bd9Sstevel@tonic-gate 501*7c478bd9Sstevel@tonic-gate if (propts & PR_PGID) { 502*7c478bd9Sstevel@tonic-gate while (sp-- > 0) 503*7c478bd9Sstevel@tonic-gate prc_buff(SPACE); 504*7c478bd9Sstevel@tonic-gate prn_buff(jp->j_pid); 505*7c478bd9Sstevel@tonic-gate sp = 1; 506*7c478bd9Sstevel@tonic-gate } 507*7c478bd9Sstevel@tonic-gate 508*7c478bd9Sstevel@tonic-gate if (propts & PR_STAT) { 509*7c478bd9Sstevel@tonic-gate while (sp-- > 0) 510*7c478bd9Sstevel@tonic-gate prc_buff(SPACE); 511*7c478bd9Sstevel@tonic-gate sp = 28; 512*7c478bd9Sstevel@tonic-gate if (jp->j_flag & J_SIGNALED) { 513*7c478bd9Sstevel@tonic-gate char *sigstr, *strsignal(); 514*7c478bd9Sstevel@tonic-gate if ((sigstr = strsignal(jp->j_xval)) != NULL) { 515*7c478bd9Sstevel@tonic-gate sp -= strlen(sigstr); 516*7c478bd9Sstevel@tonic-gate prs_buff(sigstr); 517*7c478bd9Sstevel@tonic-gate } else { 518*7c478bd9Sstevel@tonic-gate itos(jp->j_xval); 519*7c478bd9Sstevel@tonic-gate sp -= strlen(numbuf) + 7; 520*7c478bd9Sstevel@tonic-gate prs_buff("Signal "); 521*7c478bd9Sstevel@tonic-gate prs_buff(numbuf); 522*7c478bd9Sstevel@tonic-gate } 523*7c478bd9Sstevel@tonic-gate if (jp->j_flag & J_DUMPED) { 524*7c478bd9Sstevel@tonic-gate sp -= strlen(coredump); 525*7c478bd9Sstevel@tonic-gate prs_buff(coredump); 526*7c478bd9Sstevel@tonic-gate } 527*7c478bd9Sstevel@tonic-gate } else if (jp->j_flag & J_DONE) { 528*7c478bd9Sstevel@tonic-gate itos(jp->j_xval); 529*7c478bd9Sstevel@tonic-gate sp -= strlen(exited) + strlen(numbuf) + 2; 530*7c478bd9Sstevel@tonic-gate prs_buff(exited); 531*7c478bd9Sstevel@tonic-gate prc_buff('('); 532*7c478bd9Sstevel@tonic-gate itos(jp->j_xval); 533*7c478bd9Sstevel@tonic-gate prs_buff(numbuf); 534*7c478bd9Sstevel@tonic-gate prc_buff(')'); 535*7c478bd9Sstevel@tonic-gate } else { 536*7c478bd9Sstevel@tonic-gate sp -= strlen(running); 537*7c478bd9Sstevel@tonic-gate prs_buff(running); 538*7c478bd9Sstevel@tonic-gate } 539*7c478bd9Sstevel@tonic-gate if (sp < 1) 540*7c478bd9Sstevel@tonic-gate sp = 1; 541*7c478bd9Sstevel@tonic-gate } 542*7c478bd9Sstevel@tonic-gate 543*7c478bd9Sstevel@tonic-gate if (propts & PR_CMD) { 544*7c478bd9Sstevel@tonic-gate while (sp-- > 0) 545*7c478bd9Sstevel@tonic-gate prc_buff(SPACE); 546*7c478bd9Sstevel@tonic-gate prs_buff(jp->j_cmd); 547*7c478bd9Sstevel@tonic-gate sp = 1; 548*7c478bd9Sstevel@tonic-gate } 549*7c478bd9Sstevel@tonic-gate 550*7c478bd9Sstevel@tonic-gate if (propts & PR_AMP) { 551*7c478bd9Sstevel@tonic-gate while (sp-- > 0) 552*7c478bd9Sstevel@tonic-gate prc_buff(SPACE); 553*7c478bd9Sstevel@tonic-gate prc_buff('&'); 554*7c478bd9Sstevel@tonic-gate sp = 1; 555*7c478bd9Sstevel@tonic-gate } 556*7c478bd9Sstevel@tonic-gate 557*7c478bd9Sstevel@tonic-gate if (propts & PR_PWD) { 558*7c478bd9Sstevel@tonic-gate while (sp-- > 0) 559*7c478bd9Sstevel@tonic-gate prc_buff(SPACE); 560*7c478bd9Sstevel@tonic-gate prs_buff("(wd: "); 561*7c478bd9Sstevel@tonic-gate prs_buff(jp->j_pwd); 562*7c478bd9Sstevel@tonic-gate prc_buff(')'); 563*7c478bd9Sstevel@tonic-gate } 564*7c478bd9Sstevel@tonic-gate 565*7c478bd9Sstevel@tonic-gate prc_buff(NL); 566*7c478bd9Sstevel@tonic-gate flushb(); 567*7c478bd9Sstevel@tonic-gate 568*7c478bd9Sstevel@tonic-gate } 569*7c478bd9Sstevel@tonic-gate 570*7c478bd9Sstevel@tonic-gate 571*7c478bd9Sstevel@tonic-gate /* 572*7c478bd9Sstevel@tonic-gate * called to initialize job control for each new input file to the shell, 573*7c478bd9Sstevel@tonic-gate * and after the "exec" builtin 574*7c478bd9Sstevel@tonic-gate */ 575*7c478bd9Sstevel@tonic-gate 576*7c478bd9Sstevel@tonic-gate void 577*7c478bd9Sstevel@tonic-gate startjobs() 578*7c478bd9Sstevel@tonic-gate { 579*7c478bd9Sstevel@tonic-gate svpgid = mypgid; 580*7c478bd9Sstevel@tonic-gate 581*7c478bd9Sstevel@tonic-gate if (tcgetattr(0, &mystty) == -1 || (svtgid = tcgetpgrp(0)) == -1) { 582*7c478bd9Sstevel@tonic-gate flags &= ~jcflg; 583*7c478bd9Sstevel@tonic-gate return; 584*7c478bd9Sstevel@tonic-gate } 585*7c478bd9Sstevel@tonic-gate 586*7c478bd9Sstevel@tonic-gate flags |= jcflg; 587*7c478bd9Sstevel@tonic-gate 588*7c478bd9Sstevel@tonic-gate handle(SIGTTOU, SIG_IGN); 589*7c478bd9Sstevel@tonic-gate handle(SIGTSTP, SIG_DFL); 590*7c478bd9Sstevel@tonic-gate 591*7c478bd9Sstevel@tonic-gate if (mysid != mypgid) { 592*7c478bd9Sstevel@tonic-gate setpgid(0, 0); 593*7c478bd9Sstevel@tonic-gate mypgid = mypid; 594*7c478bd9Sstevel@tonic-gate (void) settgid(mypgid, svpgid); 595*7c478bd9Sstevel@tonic-gate } 596*7c478bd9Sstevel@tonic-gate 597*7c478bd9Sstevel@tonic-gate } 598*7c478bd9Sstevel@tonic-gate 599*7c478bd9Sstevel@tonic-gate int 600*7c478bd9Sstevel@tonic-gate endjobs(check_if) 601*7c478bd9Sstevel@tonic-gate int check_if; 602*7c478bd9Sstevel@tonic-gate { 603*7c478bd9Sstevel@tonic-gate if ((flags & (jcoff|jcflg)) != jcflg) 604*7c478bd9Sstevel@tonic-gate return (1); 605*7c478bd9Sstevel@tonic-gate 606*7c478bd9Sstevel@tonic-gate if (check_if && jobcnt && eofflg++ == 0) { 607*7c478bd9Sstevel@tonic-gate register struct job *jp; 608*7c478bd9Sstevel@tonic-gate if (check_if & JOB_STOPPED) { 609*7c478bd9Sstevel@tonic-gate for (jp = joblst; jp; jp = jp->j_nxtp) { 610*7c478bd9Sstevel@tonic-gate if (jp->j_jid && (jp->j_flag & J_STOPPED)) { 611*7c478bd9Sstevel@tonic-gate prs(jobsstopped); 612*7c478bd9Sstevel@tonic-gate prc(NL); 613*7c478bd9Sstevel@tonic-gate return (0); 614*7c478bd9Sstevel@tonic-gate } 615*7c478bd9Sstevel@tonic-gate } 616*7c478bd9Sstevel@tonic-gate } 617*7c478bd9Sstevel@tonic-gate if (check_if & JOB_RUNNING) { 618*7c478bd9Sstevel@tonic-gate for (jp = joblst; jp; jp = jp->j_nxtp) { 619*7c478bd9Sstevel@tonic-gate if (jp->j_jid && (jp->j_flag & J_RUNNING)) { 620*7c478bd9Sstevel@tonic-gate prs(jobsrunning); 621*7c478bd9Sstevel@tonic-gate prc(NL); 622*7c478bd9Sstevel@tonic-gate return (0); 623*7c478bd9Sstevel@tonic-gate } 624*7c478bd9Sstevel@tonic-gate } 625*7c478bd9Sstevel@tonic-gate } 626*7c478bd9Sstevel@tonic-gate } 627*7c478bd9Sstevel@tonic-gate 628*7c478bd9Sstevel@tonic-gate if (svpgid != mypgid) { 629*7c478bd9Sstevel@tonic-gate (void) settgid(svtgid, mypgid); 630*7c478bd9Sstevel@tonic-gate setpgid(0, svpgid); 631*7c478bd9Sstevel@tonic-gate } 632*7c478bd9Sstevel@tonic-gate 633*7c478bd9Sstevel@tonic-gate return (1); 634*7c478bd9Sstevel@tonic-gate } 635*7c478bd9Sstevel@tonic-gate 636*7c478bd9Sstevel@tonic-gate 637*7c478bd9Sstevel@tonic-gate /* 638*7c478bd9Sstevel@tonic-gate * called by the shell to reserve a job slot for a job about to be spawned 639*7c478bd9Sstevel@tonic-gate */ 640*7c478bd9Sstevel@tonic-gate 641*7c478bd9Sstevel@tonic-gate void 642*7c478bd9Sstevel@tonic-gate deallocjob() 643*7c478bd9Sstevel@tonic-gate { 644*7c478bd9Sstevel@tonic-gate free(thisjob); 645*7c478bd9Sstevel@tonic-gate jobcnt--; 646*7c478bd9Sstevel@tonic-gate } 647*7c478bd9Sstevel@tonic-gate 648*7c478bd9Sstevel@tonic-gate allocjob(cmd, cwd, monitor) 649*7c478bd9Sstevel@tonic-gate register char *cmd; 650*7c478bd9Sstevel@tonic-gate register unchar *cwd; 651*7c478bd9Sstevel@tonic-gate int monitor; 652*7c478bd9Sstevel@tonic-gate { 653*7c478bd9Sstevel@tonic-gate register struct job *jp, **jpp; 654*7c478bd9Sstevel@tonic-gate register int jid, cmdlen, cwdlen; 655*7c478bd9Sstevel@tonic-gate 656*7c478bd9Sstevel@tonic-gate cmdlen = strlen(cmd) + 1; 657*7c478bd9Sstevel@tonic-gate if (cmd[cmdlen-2] == '&') { 658*7c478bd9Sstevel@tonic-gate cmd[cmdlen-3] = 0; 659*7c478bd9Sstevel@tonic-gate cmdlen -= 2; 660*7c478bd9Sstevel@tonic-gate } 661*7c478bd9Sstevel@tonic-gate cwdlen = strlen(cwd) + 1; 662*7c478bd9Sstevel@tonic-gate jp = (struct job *) alloc(sizeof (struct job) + cmdlen + cwdlen); 663*7c478bd9Sstevel@tonic-gate if (jp == 0) 664*7c478bd9Sstevel@tonic-gate error(nostack); 665*7c478bd9Sstevel@tonic-gate jobcnt++; 666*7c478bd9Sstevel@tonic-gate jp->j_cmd = ((char *)jp) + sizeof (struct job); 667*7c478bd9Sstevel@tonic-gate strcpy(jp->j_cmd, cmd); 668*7c478bd9Sstevel@tonic-gate jp->j_pwd = jp->j_cmd + cmdlen; 669*7c478bd9Sstevel@tonic-gate strcpy(jp->j_pwd, cwd); 670*7c478bd9Sstevel@tonic-gate 671*7c478bd9Sstevel@tonic-gate jpp = &joblst; 672*7c478bd9Sstevel@tonic-gate 673*7c478bd9Sstevel@tonic-gate if (monitor) { 674*7c478bd9Sstevel@tonic-gate for (; *jpp; jpp = &(*jpp)->j_nxtp) 675*7c478bd9Sstevel@tonic-gate if ((*jpp)->j_jid != 0) 676*7c478bd9Sstevel@tonic-gate break; 677*7c478bd9Sstevel@tonic-gate for (jid = 1; *jpp; jpp = &(*jpp)->j_nxtp, jid++) 678*7c478bd9Sstevel@tonic-gate if ((*jpp)->j_jid != jid) 679*7c478bd9Sstevel@tonic-gate break; 680*7c478bd9Sstevel@tonic-gate } else 681*7c478bd9Sstevel@tonic-gate jid = 0; 682*7c478bd9Sstevel@tonic-gate 683*7c478bd9Sstevel@tonic-gate jp->j_jid = jid; 684*7c478bd9Sstevel@tonic-gate nextjob = jpp; 685*7c478bd9Sstevel@tonic-gate thisjob = jp; 686*7c478bd9Sstevel@tonic-gate } 687*7c478bd9Sstevel@tonic-gate 688*7c478bd9Sstevel@tonic-gate clearjobs() 689*7c478bd9Sstevel@tonic-gate { 690*7c478bd9Sstevel@tonic-gate register struct job *jp, *sjp; 691*7c478bd9Sstevel@tonic-gate 692*7c478bd9Sstevel@tonic-gate for (jp = joblst; jp; jp = sjp) { 693*7c478bd9Sstevel@tonic-gate sjp = jp->j_nxtp; 694*7c478bd9Sstevel@tonic-gate free(jp); 695*7c478bd9Sstevel@tonic-gate } 696*7c478bd9Sstevel@tonic-gate joblst = NULL; 697*7c478bd9Sstevel@tonic-gate jobcnt = 0; 698*7c478bd9Sstevel@tonic-gate jobnote = 0; 699*7c478bd9Sstevel@tonic-gate jobdone = 0; 700*7c478bd9Sstevel@tonic-gate 701*7c478bd9Sstevel@tonic-gate } 702*7c478bd9Sstevel@tonic-gate 703*7c478bd9Sstevel@tonic-gate makejob(monitor, fg) 704*7c478bd9Sstevel@tonic-gate int monitor, fg; 705*7c478bd9Sstevel@tonic-gate { 706*7c478bd9Sstevel@tonic-gate if (monitor) { 707*7c478bd9Sstevel@tonic-gate mypgid = mypid; 708*7c478bd9Sstevel@tonic-gate setpgid(0, 0); 709*7c478bd9Sstevel@tonic-gate if (fg) 710*7c478bd9Sstevel@tonic-gate tcsetpgrp(0, mypid); 711*7c478bd9Sstevel@tonic-gate handle(SIGTTOU, SIG_DFL); 712*7c478bd9Sstevel@tonic-gate handle(SIGTSTP, SIG_DFL); 713*7c478bd9Sstevel@tonic-gate } else if (!fg) { 714*7c478bd9Sstevel@tonic-gate #ifdef NICE 715*7c478bd9Sstevel@tonic-gate nice(NICE); 716*7c478bd9Sstevel@tonic-gate #endif 717*7c478bd9Sstevel@tonic-gate handle(SIGTTIN, SIG_IGN); 718*7c478bd9Sstevel@tonic-gate handle(SIGINT, SIG_IGN); 719*7c478bd9Sstevel@tonic-gate handle(SIGQUIT, SIG_IGN); 720*7c478bd9Sstevel@tonic-gate if (!ioset) 721*7c478bd9Sstevel@tonic-gate renamef(chkopen(devnull, 0), 0); 722*7c478bd9Sstevel@tonic-gate } 723*7c478bd9Sstevel@tonic-gate } 724*7c478bd9Sstevel@tonic-gate 725*7c478bd9Sstevel@tonic-gate /* 726*7c478bd9Sstevel@tonic-gate * called by the shell after job has been spawned, to fill in the 727*7c478bd9Sstevel@tonic-gate * job slot, and wait for the job if in the foreground 728*7c478bd9Sstevel@tonic-gate */ 729*7c478bd9Sstevel@tonic-gate 730*7c478bd9Sstevel@tonic-gate void 731*7c478bd9Sstevel@tonic-gate postjob(pid, fg) 732*7c478bd9Sstevel@tonic-gate pid_t pid; 733*7c478bd9Sstevel@tonic-gate int fg; 734*7c478bd9Sstevel@tonic-gate { 735*7c478bd9Sstevel@tonic-gate 736*7c478bd9Sstevel@tonic-gate register propts; 737*7c478bd9Sstevel@tonic-gate 738*7c478bd9Sstevel@tonic-gate thisjob->j_nxtp = *nextjob; 739*7c478bd9Sstevel@tonic-gate *nextjob = thisjob; 740*7c478bd9Sstevel@tonic-gate thisjob->j_curp = jobcur; 741*7c478bd9Sstevel@tonic-gate jobcur = thisjob; 742*7c478bd9Sstevel@tonic-gate 743*7c478bd9Sstevel@tonic-gate if (thisjob->j_jid) { 744*7c478bd9Sstevel@tonic-gate thisjob->j_pgid = pid; 745*7c478bd9Sstevel@tonic-gate propts = PR_JID|PR_PGID; 746*7c478bd9Sstevel@tonic-gate } else { 747*7c478bd9Sstevel@tonic-gate thisjob->j_pgid = mypgid; 748*7c478bd9Sstevel@tonic-gate propts = PR_PGID; 749*7c478bd9Sstevel@tonic-gate } 750*7c478bd9Sstevel@tonic-gate 751*7c478bd9Sstevel@tonic-gate thisjob->j_flag = J_RUNNING; 752*7c478bd9Sstevel@tonic-gate thisjob->j_tgid = thisjob->j_pgid; 753*7c478bd9Sstevel@tonic-gate thisjob->j_pid = pid; 754*7c478bd9Sstevel@tonic-gate eofflg = 0; 755*7c478bd9Sstevel@tonic-gate 756*7c478bd9Sstevel@tonic-gate if (fg) { 757*7c478bd9Sstevel@tonic-gate thisjob->j_flag |= J_FOREGND; 758*7c478bd9Sstevel@tonic-gate waitjob(thisjob); 759*7c478bd9Sstevel@tonic-gate } else { 760*7c478bd9Sstevel@tonic-gate if (flags & ttyflg) 761*7c478bd9Sstevel@tonic-gate printjob(thisjob, propts); 762*7c478bd9Sstevel@tonic-gate assnum(&pcsadr, (long)pid); 763*7c478bd9Sstevel@tonic-gate } 764*7c478bd9Sstevel@tonic-gate } 765*7c478bd9Sstevel@tonic-gate 766*7c478bd9Sstevel@tonic-gate /* 767*7c478bd9Sstevel@tonic-gate * the builtin "jobs" command 768*7c478bd9Sstevel@tonic-gate */ 769*7c478bd9Sstevel@tonic-gate 770*7c478bd9Sstevel@tonic-gate void 771*7c478bd9Sstevel@tonic-gate sysjobs(argc, argv) 772*7c478bd9Sstevel@tonic-gate int argc; 773*7c478bd9Sstevel@tonic-gate char *argv[]; 774*7c478bd9Sstevel@tonic-gate { 775*7c478bd9Sstevel@tonic-gate register char *cmd = *argv; 776*7c478bd9Sstevel@tonic-gate register struct job *jp; 777*7c478bd9Sstevel@tonic-gate register propts, c; 778*7c478bd9Sstevel@tonic-gate extern int opterr, i; 779*7c478bd9Sstevel@tonic-gate int savoptind = optind; 780*7c478bd9Sstevel@tonic-gate int loptind = -1; 781*7c478bd9Sstevel@tonic-gate int savopterr = opterr; 782*7c478bd9Sstevel@tonic-gate int savsp = _sp; 783*7c478bd9Sstevel@tonic-gate char *savoptarg = optarg; 784*7c478bd9Sstevel@tonic-gate optind = 1; 785*7c478bd9Sstevel@tonic-gate opterr = 0; 786*7c478bd9Sstevel@tonic-gate _sp = 1; 787*7c478bd9Sstevel@tonic-gate propts = 0; 788*7c478bd9Sstevel@tonic-gate 789*7c478bd9Sstevel@tonic-gate if ((flags & jcflg) == 0) 790*7c478bd9Sstevel@tonic-gate failed(cmd, nojc); 791*7c478bd9Sstevel@tonic-gate 792*7c478bd9Sstevel@tonic-gate while ((c = getopt(argc, argv, "lpx")) != -1) { 793*7c478bd9Sstevel@tonic-gate if (propts) { 794*7c478bd9Sstevel@tonic-gate failure(usage, jobsuse); 795*7c478bd9Sstevel@tonic-gate goto err; 796*7c478bd9Sstevel@tonic-gate } 797*7c478bd9Sstevel@tonic-gate switch (c) { 798*7c478bd9Sstevel@tonic-gate case 'x': 799*7c478bd9Sstevel@tonic-gate propts = -1; 800*7c478bd9Sstevel@tonic-gate break; 801*7c478bd9Sstevel@tonic-gate case 'p': 802*7c478bd9Sstevel@tonic-gate propts = PR_PGID; 803*7c478bd9Sstevel@tonic-gate break; 804*7c478bd9Sstevel@tonic-gate case 'l': 805*7c478bd9Sstevel@tonic-gate propts = PR_LONG; 806*7c478bd9Sstevel@tonic-gate break; 807*7c478bd9Sstevel@tonic-gate case '?': 808*7c478bd9Sstevel@tonic-gate failure(usage, jobsuse); 809*7c478bd9Sstevel@tonic-gate goto err; 810*7c478bd9Sstevel@tonic-gate } 811*7c478bd9Sstevel@tonic-gate } 812*7c478bd9Sstevel@tonic-gate 813*7c478bd9Sstevel@tonic-gate loptind = optind; 814*7c478bd9Sstevel@tonic-gate err: 815*7c478bd9Sstevel@tonic-gate optind = savoptind; 816*7c478bd9Sstevel@tonic-gate optarg = savoptarg; 817*7c478bd9Sstevel@tonic-gate opterr = savopterr; 818*7c478bd9Sstevel@tonic-gate _sp = savsp; 819*7c478bd9Sstevel@tonic-gate if (loptind == -1) 820*7c478bd9Sstevel@tonic-gate return; 821*7c478bd9Sstevel@tonic-gate 822*7c478bd9Sstevel@tonic-gate if (propts == -1) { 823*7c478bd9Sstevel@tonic-gate register unsigned char *bp; 824*7c478bd9Sstevel@tonic-gate register char *cp; 825*7c478bd9Sstevel@tonic-gate unsigned char *savebp; 826*7c478bd9Sstevel@tonic-gate for (savebp = bp = locstak(); loptind < argc; loptind++) { 827*7c478bd9Sstevel@tonic-gate cp = argv[loptind]; 828*7c478bd9Sstevel@tonic-gate if (*cp == '%') { 829*7c478bd9Sstevel@tonic-gate jp = str2job(cmd, cp, 1); 830*7c478bd9Sstevel@tonic-gate itos(jp->j_pid); 831*7c478bd9Sstevel@tonic-gate cp = (char *)numbuf; 832*7c478bd9Sstevel@tonic-gate } 833*7c478bd9Sstevel@tonic-gate while (*cp) { 834*7c478bd9Sstevel@tonic-gate if (bp >= brkend) 835*7c478bd9Sstevel@tonic-gate growstak(bp); 836*7c478bd9Sstevel@tonic-gate *bp++ = *cp++; 837*7c478bd9Sstevel@tonic-gate } 838*7c478bd9Sstevel@tonic-gate if (bp >= brkend) 839*7c478bd9Sstevel@tonic-gate growstak(bp); 840*7c478bd9Sstevel@tonic-gate *bp++ = SPACE; 841*7c478bd9Sstevel@tonic-gate } 842*7c478bd9Sstevel@tonic-gate endstak(bp); 843*7c478bd9Sstevel@tonic-gate execexp(savebp, 0); 844*7c478bd9Sstevel@tonic-gate return; 845*7c478bd9Sstevel@tonic-gate } 846*7c478bd9Sstevel@tonic-gate 847*7c478bd9Sstevel@tonic-gate collectjobs(WNOHANG); 848*7c478bd9Sstevel@tonic-gate 849*7c478bd9Sstevel@tonic-gate if (propts == 0) 850*7c478bd9Sstevel@tonic-gate propts = PR_DFL; 851*7c478bd9Sstevel@tonic-gate 852*7c478bd9Sstevel@tonic-gate if (loptind == argc) { 853*7c478bd9Sstevel@tonic-gate for (jp = joblst; jp; jp = jp->j_nxtp) { 854*7c478bd9Sstevel@tonic-gate if (jp->j_jid) 855*7c478bd9Sstevel@tonic-gate printjob(jp, propts); 856*7c478bd9Sstevel@tonic-gate } 857*7c478bd9Sstevel@tonic-gate } else do 858*7c478bd9Sstevel@tonic-gate printjob(str2job(cmd, argv[loptind++], 1), propts); 859*7c478bd9Sstevel@tonic-gate while (loptind < argc); 860*7c478bd9Sstevel@tonic-gate 861*7c478bd9Sstevel@tonic-gate } 862*7c478bd9Sstevel@tonic-gate 863*7c478bd9Sstevel@tonic-gate /* 864*7c478bd9Sstevel@tonic-gate * the builtin "fg" and "bg" commands 865*7c478bd9Sstevel@tonic-gate */ 866*7c478bd9Sstevel@tonic-gate 867*7c478bd9Sstevel@tonic-gate sysfgbg(argc, argv) 868*7c478bd9Sstevel@tonic-gate int argc; 869*7c478bd9Sstevel@tonic-gate char *argv[]; 870*7c478bd9Sstevel@tonic-gate { 871*7c478bd9Sstevel@tonic-gate register char *cmd = *argv; 872*7c478bd9Sstevel@tonic-gate register fg; 873*7c478bd9Sstevel@tonic-gate 874*7c478bd9Sstevel@tonic-gate if ((flags & jcflg) == 0) 875*7c478bd9Sstevel@tonic-gate failed(cmd, nojc); 876*7c478bd9Sstevel@tonic-gate 877*7c478bd9Sstevel@tonic-gate fg = eq("fg", cmd); 878*7c478bd9Sstevel@tonic-gate 879*7c478bd9Sstevel@tonic-gate if (*++argv == 0) { 880*7c478bd9Sstevel@tonic-gate struct job *jp; 881*7c478bd9Sstevel@tonic-gate for (jp = jobcur; ; jp = jp->j_curp) { 882*7c478bd9Sstevel@tonic-gate if (jp == 0) 883*7c478bd9Sstevel@tonic-gate failed(cmd, nocurjob); 884*7c478bd9Sstevel@tonic-gate if (jp->j_jid) 885*7c478bd9Sstevel@tonic-gate break; 886*7c478bd9Sstevel@tonic-gate } 887*7c478bd9Sstevel@tonic-gate restartjob(jp, fg); 888*7c478bd9Sstevel@tonic-gate } 889*7c478bd9Sstevel@tonic-gate 890*7c478bd9Sstevel@tonic-gate else do 891*7c478bd9Sstevel@tonic-gate restartjob(str2job(cmd, *argv, 1), fg); 892*7c478bd9Sstevel@tonic-gate while (*++argv); 893*7c478bd9Sstevel@tonic-gate 894*7c478bd9Sstevel@tonic-gate } 895*7c478bd9Sstevel@tonic-gate 896*7c478bd9Sstevel@tonic-gate /* 897*7c478bd9Sstevel@tonic-gate * the builtin "wait" commands 898*7c478bd9Sstevel@tonic-gate */ 899*7c478bd9Sstevel@tonic-gate 900*7c478bd9Sstevel@tonic-gate void 901*7c478bd9Sstevel@tonic-gate syswait(argc, argv) 902*7c478bd9Sstevel@tonic-gate int argc; 903*7c478bd9Sstevel@tonic-gate char *argv[]; 904*7c478bd9Sstevel@tonic-gate { 905*7c478bd9Sstevel@tonic-gate register char *cmd = *argv; 906*7c478bd9Sstevel@tonic-gate register struct job *jp; 907*7c478bd9Sstevel@tonic-gate int stat; 908*7c478bd9Sstevel@tonic-gate int wflags; 909*7c478bd9Sstevel@tonic-gate 910*7c478bd9Sstevel@tonic-gate if ((flags & (monitorflg|jcflg|jcoff)) == (monitorflg|jcflg)) 911*7c478bd9Sstevel@tonic-gate wflags = WUNTRACED; 912*7c478bd9Sstevel@tonic-gate else 913*7c478bd9Sstevel@tonic-gate wflags = 0; 914*7c478bd9Sstevel@tonic-gate 915*7c478bd9Sstevel@tonic-gate if (argc == 1) 916*7c478bd9Sstevel@tonic-gate collectjobs(0); 917*7c478bd9Sstevel@tonic-gate else while (--argc) { 918*7c478bd9Sstevel@tonic-gate if ((jp = str2job(cmd, *++argv, 0)) == 0) 919*7c478bd9Sstevel@tonic-gate continue; 920*7c478bd9Sstevel@tonic-gate if (!(jp->j_flag & J_RUNNING)) 921*7c478bd9Sstevel@tonic-gate continue; 922*7c478bd9Sstevel@tonic-gate if (waitpid(jp->j_pid, &stat, wflags) <= 0) 923*7c478bd9Sstevel@tonic-gate break; 924*7c478bd9Sstevel@tonic-gate (void) statjob(jp, stat, 0, 1); 925*7c478bd9Sstevel@tonic-gate } 926*7c478bd9Sstevel@tonic-gate } 927*7c478bd9Sstevel@tonic-gate 928*7c478bd9Sstevel@tonic-gate static 929*7c478bd9Sstevel@tonic-gate sigv(cmd, sig, args) 930*7c478bd9Sstevel@tonic-gate char *cmd; 931*7c478bd9Sstevel@tonic-gate int sig; 932*7c478bd9Sstevel@tonic-gate char *args; 933*7c478bd9Sstevel@tonic-gate { 934*7c478bd9Sstevel@tonic-gate int pgrp = 0; 935*7c478bd9Sstevel@tonic-gate int stopme = 0; 936*7c478bd9Sstevel@tonic-gate pid_t id; 937*7c478bd9Sstevel@tonic-gate 938*7c478bd9Sstevel@tonic-gate if (*args == '%') { 939*7c478bd9Sstevel@tonic-gate register struct job *jp; 940*7c478bd9Sstevel@tonic-gate jp = str2job(cmd, args, 1); 941*7c478bd9Sstevel@tonic-gate id = jp->j_pgid; 942*7c478bd9Sstevel@tonic-gate pgrp++; 943*7c478bd9Sstevel@tonic-gate } else { 944*7c478bd9Sstevel@tonic-gate if (*args == '-') { 945*7c478bd9Sstevel@tonic-gate pgrp++; 946*7c478bd9Sstevel@tonic-gate args++; 947*7c478bd9Sstevel@tonic-gate } 948*7c478bd9Sstevel@tonic-gate id = 0; 949*7c478bd9Sstevel@tonic-gate do { 950*7c478bd9Sstevel@tonic-gate if (*args < '0' || *args > '9') { 951*7c478bd9Sstevel@tonic-gate failure(cmd, badid); 952*7c478bd9Sstevel@tonic-gate return; 953*7c478bd9Sstevel@tonic-gate } 954*7c478bd9Sstevel@tonic-gate id = (id * 10) + (*args - '0'); 955*7c478bd9Sstevel@tonic-gate } while (*++args); 956*7c478bd9Sstevel@tonic-gate if (id == 0) { 957*7c478bd9Sstevel@tonic-gate id = mypgid; 958*7c478bd9Sstevel@tonic-gate pgrp++; 959*7c478bd9Sstevel@tonic-gate } 960*7c478bd9Sstevel@tonic-gate } 961*7c478bd9Sstevel@tonic-gate 962*7c478bd9Sstevel@tonic-gate if (sig == SIGSTOP) { 963*7c478bd9Sstevel@tonic-gate if (id == mysid || id == mypid && mypgid == mysid) { 964*7c478bd9Sstevel@tonic-gate failure(cmd, loginsh); 965*7c478bd9Sstevel@tonic-gate return; 966*7c478bd9Sstevel@tonic-gate } 967*7c478bd9Sstevel@tonic-gate if (id == mypgid && mypgid != svpgid) { 968*7c478bd9Sstevel@tonic-gate (void) settgid(svtgid, mypgid); 969*7c478bd9Sstevel@tonic-gate setpgid(0, svpgid); 970*7c478bd9Sstevel@tonic-gate stopme++; 971*7c478bd9Sstevel@tonic-gate } 972*7c478bd9Sstevel@tonic-gate } 973*7c478bd9Sstevel@tonic-gate 974*7c478bd9Sstevel@tonic-gate if (pgrp) 975*7c478bd9Sstevel@tonic-gate id = -id; 976*7c478bd9Sstevel@tonic-gate 977*7c478bd9Sstevel@tonic-gate if (kill(id, sig) < 0) { 978*7c478bd9Sstevel@tonic-gate 979*7c478bd9Sstevel@tonic-gate switch (errno) { 980*7c478bd9Sstevel@tonic-gate case EPERM: 981*7c478bd9Sstevel@tonic-gate failure(cmd, eacces); 982*7c478bd9Sstevel@tonic-gate break; 983*7c478bd9Sstevel@tonic-gate 984*7c478bd9Sstevel@tonic-gate case EINVAL: 985*7c478bd9Sstevel@tonic-gate failure(cmd, badsig); 986*7c478bd9Sstevel@tonic-gate break; 987*7c478bd9Sstevel@tonic-gate 988*7c478bd9Sstevel@tonic-gate default: 989*7c478bd9Sstevel@tonic-gate if (pgrp) 990*7c478bd9Sstevel@tonic-gate failure(cmd, nosuchpgid); 991*7c478bd9Sstevel@tonic-gate else 992*7c478bd9Sstevel@tonic-gate failure(cmd, nosuchpid); 993*7c478bd9Sstevel@tonic-gate break; 994*7c478bd9Sstevel@tonic-gate } 995*7c478bd9Sstevel@tonic-gate 996*7c478bd9Sstevel@tonic-gate } else if (sig == SIGTERM && pgrp) 997*7c478bd9Sstevel@tonic-gate (void) kill(id, SIGCONT); 998*7c478bd9Sstevel@tonic-gate 999*7c478bd9Sstevel@tonic-gate if (stopme) { 1000*7c478bd9Sstevel@tonic-gate setpgid(0, mypgid); 1001*7c478bd9Sstevel@tonic-gate (void) settgid(mypgid, svpgid); 1002*7c478bd9Sstevel@tonic-gate } 1003*7c478bd9Sstevel@tonic-gate 1004*7c478bd9Sstevel@tonic-gate } 1005*7c478bd9Sstevel@tonic-gate 1006*7c478bd9Sstevel@tonic-gate sysstop(argc, argv) 1007*7c478bd9Sstevel@tonic-gate int argc; 1008*7c478bd9Sstevel@tonic-gate char *argv[]; 1009*7c478bd9Sstevel@tonic-gate { 1010*7c478bd9Sstevel@tonic-gate char *cmd = *argv; 1011*7c478bd9Sstevel@tonic-gate if (argc <= 1) 1012*7c478bd9Sstevel@tonic-gate failed(usage, stopuse); 1013*7c478bd9Sstevel@tonic-gate while (*++argv) 1014*7c478bd9Sstevel@tonic-gate sigv(cmd, SIGSTOP, *argv); 1015*7c478bd9Sstevel@tonic-gate } 1016*7c478bd9Sstevel@tonic-gate 1017*7c478bd9Sstevel@tonic-gate syskill(argc, argv) 1018*7c478bd9Sstevel@tonic-gate int argc; 1019*7c478bd9Sstevel@tonic-gate char *argv[]; 1020*7c478bd9Sstevel@tonic-gate { 1021*7c478bd9Sstevel@tonic-gate char *cmd = *argv; 1022*7c478bd9Sstevel@tonic-gate int sig = SIGTERM; 1023*7c478bd9Sstevel@tonic-gate 1024*7c478bd9Sstevel@tonic-gate if (argc == 1) { 1025*7c478bd9Sstevel@tonic-gate failure(usage, killuse); 1026*7c478bd9Sstevel@tonic-gate return; 1027*7c478bd9Sstevel@tonic-gate } 1028*7c478bd9Sstevel@tonic-gate 1029*7c478bd9Sstevel@tonic-gate if (argv[1][0] == '-') { 1030*7c478bd9Sstevel@tonic-gate 1031*7c478bd9Sstevel@tonic-gate if (argc == 2) { 1032*7c478bd9Sstevel@tonic-gate 1033*7c478bd9Sstevel@tonic-gate register i; 1034*7c478bd9Sstevel@tonic-gate register cnt = 0; 1035*7c478bd9Sstevel@tonic-gate register char sep = 0; 1036*7c478bd9Sstevel@tonic-gate char buf[12]; 1037*7c478bd9Sstevel@tonic-gate 1038*7c478bd9Sstevel@tonic-gate if (!eq(argv[1], "-l")) { 1039*7c478bd9Sstevel@tonic-gate failure(usage, killuse); 1040*7c478bd9Sstevel@tonic-gate return; 1041*7c478bd9Sstevel@tonic-gate } 1042*7c478bd9Sstevel@tonic-gate 1043*7c478bd9Sstevel@tonic-gate for (i = 1; i < MAXTRAP; i++) { 1044*7c478bd9Sstevel@tonic-gate if (sig2str(i, buf) < 0) 1045*7c478bd9Sstevel@tonic-gate continue; 1046*7c478bd9Sstevel@tonic-gate if (sep) 1047*7c478bd9Sstevel@tonic-gate prc_buff(sep); 1048*7c478bd9Sstevel@tonic-gate prs_buff(buf); 1049*7c478bd9Sstevel@tonic-gate if ((flags & ttyflg) && (++cnt % 10)) 1050*7c478bd9Sstevel@tonic-gate sep = TAB; 1051*7c478bd9Sstevel@tonic-gate else 1052*7c478bd9Sstevel@tonic-gate sep = NL; 1053*7c478bd9Sstevel@tonic-gate } 1054*7c478bd9Sstevel@tonic-gate prc_buff(NL); 1055*7c478bd9Sstevel@tonic-gate return; 1056*7c478bd9Sstevel@tonic-gate } 1057*7c478bd9Sstevel@tonic-gate 1058*7c478bd9Sstevel@tonic-gate if (str2sig(&argv[1][1], &sig)) { 1059*7c478bd9Sstevel@tonic-gate failure(cmd, badsig); 1060*7c478bd9Sstevel@tonic-gate return; 1061*7c478bd9Sstevel@tonic-gate } 1062*7c478bd9Sstevel@tonic-gate argv++; 1063*7c478bd9Sstevel@tonic-gate } 1064*7c478bd9Sstevel@tonic-gate 1065*7c478bd9Sstevel@tonic-gate while (*++argv) 1066*7c478bd9Sstevel@tonic-gate sigv(cmd, sig, *argv); 1067*7c478bd9Sstevel@tonic-gate 1068*7c478bd9Sstevel@tonic-gate } 1069*7c478bd9Sstevel@tonic-gate 1070*7c478bd9Sstevel@tonic-gate syssusp(argc, argv) 1071*7c478bd9Sstevel@tonic-gate int argc; 1072*7c478bd9Sstevel@tonic-gate char *argv[]; 1073*7c478bd9Sstevel@tonic-gate { 1074*7c478bd9Sstevel@tonic-gate if (argc != 1) 1075*7c478bd9Sstevel@tonic-gate failed(argv[0], badopt); 1076*7c478bd9Sstevel@tonic-gate sigv(argv[0], SIGSTOP, "0"); 1077*7c478bd9Sstevel@tonic-gate } 1078