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35 static char sccsid[] = "@(#)eval.c 8.9 (Berkeley) 6/8/95";
38 #include <sys/cdefs.h>
39 __FBSDID("$FreeBSD$");
45 #include <sys/resource.h>
72 #include "myhistedit.h"
76 int evalskip; /* set if we are skipping commands */
77 int skipcount; /* number of levels to skip */
78 static int loopnest; /* current loop nesting level */
79 int funcnest; /* depth of function calls */
80 static int builtin_flags; /* evalcommand flags for builtins */
84 struct arglist *cmdenviron;
85 int exitstatus; /* exit status of last command */
86 int oexitstatus; /* saved exit status */
89 static void evalloop(union node *, int);
90 static void evalfor(union node *, int);
91 static union node *evalcase(union node *);
92 static void evalsubshell(union node *, int);
93 static void evalredir(union node *, int);
94 static void exphere(union node *, struct arglist *);
95 static void expredir(union node *);
96 static void evalpipe(union node *);
97 static int is_valid_fast_cmdsubst(union node *n);
98 static void evalcommand(union node *, int, struct backcmd *);
99 static void prehash(union node *);
103 * Called to reset things after an exception.
119 evalcmd(int argc, char **argv)
128 STARTSTACKSTR(concat);
132 if ((p = *ap++) == NULL)
136 STPUTC('\0', concat);
137 p = grabstackstr(concat);
139 evalstring(p, builtin_flags);
147 * Execute a command or commands contained in a string.
151 evalstring(const char *s, int flags)
154 struct stackmark smark;
158 flags_exit = flags & EV_EXIT;
161 setstackmark(&smark);
162 setinputstring(s, 1);
163 while ((n = parsecmd(0)) != NEOF) {
164 if (n != NULL && !nflag) {
165 if (flags_exit && preadateof())
166 evaltree(n, flags | EV_EXIT);
173 popstackmark(&smark);
174 setstackmark(&smark);
177 popstackmark(&smark);
186 * Evaluate a parse tree. The value is left in the global variable
191 evaltree(union node *n, int flags)
195 struct stackmark smark;
197 setstackmark(&smark);
200 TRACE(("evaltree(NULL) called\n"));
207 displayhist = 1; /* show history substitutions done with fc */
209 TRACE(("evaltree(%p: %d) called\n", (void *)n, n->type));
212 evaltree(n->nbinary.ch1, flags & ~EV_EXIT);
215 next = n->nbinary.ch2;
218 evaltree(n->nbinary.ch1, EV_TESTED);
219 if (evalskip || exitstatus != 0) {
222 next = n->nbinary.ch2;
225 evaltree(n->nbinary.ch1, EV_TESTED);
226 if (evalskip || exitstatus == 0)
228 next = n->nbinary.ch2;
234 evalsubshell(n, flags);
235 do_etest = !(flags & EV_TESTED);
238 evalsubshell(n, flags);
241 evaltree(n->nif.test, EV_TESTED);
245 next = n->nif.ifpart;
246 else if (n->nif.elsepart)
247 next = n->nif.elsepart;
254 evalloop(n, flags & ~EV_EXIT);
257 evalfor(n, flags & ~EV_EXIT);
263 next = n->nclist.body;
266 if (n->nclist.body) {
267 evaltree(n->nclist.body, flags & ~EV_EXIT);
271 next = n->nclist.next;
274 defun(n->narg.text, n->narg.next);
278 evaltree(n->nnot.com, EV_TESTED);
281 exitstatus = !exitstatus;
286 do_etest = !(flags & EV_TESTED);
289 evalcommand(n, flags, (struct backcmd *)NULL);
290 do_etest = !(flags & EV_TESTED);
293 out1fmt("Node type = %d\n", n->type);
298 popstackmark(&smark);
299 setstackmark(&smark);
302 popstackmark(&smark);
305 if (eflag && exitstatus != 0 && do_etest)
306 exitshell(exitstatus);
313 evalloop(union node *n, int flags)
321 evaltree(n->nbinary.ch1, EV_TESTED);
323 if (evalskip == SKIPCONT && --skipcount <= 0) {
327 if (evalskip == SKIPBREAK && --skipcount <= 0)
329 if (evalskip == SKIPRETURN)
333 if (n->type == NWHILE) {
340 evaltree(n->nbinary.ch2, flags);
350 evalfor(union node *n, int flags)
352 struct arglist arglist;
357 emptyarglist(&arglist);
358 for (argp = n->nfor.args ; argp ; argp = argp->narg.next) {
359 oexitstatus = exitstatus;
360 expandarg(argp, &arglist, EXP_FULL | EXP_TILDE);
365 for (i = 0; i < arglist.count; i++) {
366 setvar(n->nfor.var, arglist.args[i], 0);
367 evaltree(n->nfor.body, flags);
370 if (evalskip == SKIPCONT && --skipcount <= 0) {
374 if (evalskip == SKIPBREAK && --skipcount <= 0)
385 * Evaluate a case statement, returning the selected tree.
387 * The exit status needs care to get right.
391 evalcase(union node *n)
395 struct arglist arglist;
397 emptyarglist(&arglist);
398 oexitstatus = exitstatus;
399 expandarg(n->ncase.expr, &arglist, EXP_TILDE);
400 for (cp = n->ncase.cases ; cp ; cp = cp->nclist.next) {
401 for (patp = cp->nclist.pattern ; patp ; patp = patp->narg.next) {
402 if (casematch(patp, arglist.args[0])) {
403 while (cp->nclist.next &&
404 cp->type == NCLISTFALLTHRU &&
405 cp->nclist.body == NULL)
406 cp = cp->nclist.next;
407 if (cp->nclist.next &&
408 cp->type == NCLISTFALLTHRU)
410 if (cp->nclist.body == NULL)
412 return (cp->nclist.body);
423 * Kick off a subshell to evaluate a tree.
427 evalsubshell(union node *n, int flags)
430 int backgnd = (n->type == NBACKGND);
432 oexitstatus = exitstatus;
433 expredir(n->nredir.redirect);
434 if ((!backgnd && flags & EV_EXIT && !have_traps()) ||
435 forkshell(jp = makejob(n, 1), n, backgnd) == 0) {
438 redirect(n->nredir.redirect, 0);
439 evaltree(n->nredir.n, flags | EV_EXIT); /* never returns */
440 } else if (! backgnd) {
442 exitstatus = waitforjob(jp, (int *)NULL);
450 * Evaluate a redirected compound command.
454 evalredir(union node *n, int flags)
456 struct jmploc jmploc;
457 struct jmploc *savehandler;
458 volatile int in_redirect = 1;
460 oexitstatus = exitstatus;
461 expredir(n->nredir.redirect);
462 savehandler = handler;
463 if (setjmp(jmploc.loc)) {
466 handler = savehandler;
469 if (e == EXERROR && in_redirect) {
473 longjmp(handler->loc, 1);
477 redirect(n->nredir.redirect, REDIR_PUSH);
480 evaltree(n->nredir.n, flags);
483 handler = savehandler;
490 exphere(union node *redir, struct arglist *fn)
492 struct jmploc jmploc;
493 struct jmploc *savehandler;
494 struct localvar *savelocalvars;
495 int need_longjmp = 0;
496 unsigned char saveoptreset;
498 redir->nhere.expdoc = "";
499 savelocalvars = localvars;
501 saveoptreset = shellparam.reset;
503 savehandler = handler;
504 if (setjmp(jmploc.loc))
505 need_longjmp = exception != EXERROR;
508 expandarg(redir->nhere.doc, fn, 0);
509 redir->nhere.expdoc = fn->args[0];
512 handler = savehandler;
515 localvars = savelocalvars;
516 shellparam.reset = saveoptreset;
518 longjmp(handler->loc, 1);
524 * Compute the names of the files in a redirection list.
528 expredir(union node *n)
532 for (redir = n ; redir ; redir = redir->nfile.next) {
535 switch (redir->type) {
541 expandarg(redir->nfile.fname, &fn, EXP_TILDE);
542 redir->nfile.expfname = fn.args[0];
546 if (redir->ndup.vname) {
547 expandarg(redir->ndup.vname, &fn, EXP_TILDE);
548 fixredir(redir, fn.args[0], 1);
561 * Evaluate a pipeline. All the processes in the pipeline are children
562 * of the process creating the pipeline. (This differs from some versions
563 * of the shell, which make the last process in a pipeline the parent
568 evalpipe(union node *n)
576 TRACE(("evalpipe(%p) called\n", (void *)n));
578 for (lp = n->npipe.cmdlist ; lp ; lp = lp->next)
581 jp = makejob(n, pipelen);
583 for (lp = n->npipe.cmdlist ; lp ; lp = lp->next) {
590 error("Pipe call failed: %s", strerror(errno));
593 if (forkshell(jp, lp->n, n->npipe.backgnd) == 0) {
600 if (!(prevfd >= 0 && pip[0] == 0))
607 evaltree(lp->n, EV_EXIT);
616 if (n->npipe.backgnd == 0) {
618 exitstatus = waitforjob(jp, (int *)NULL);
619 TRACE(("evalpipe: job done exit status %d\n", exitstatus));
628 is_valid_fast_cmdsubst(union node *n)
631 return (n->type == NCMD);
635 * Execute a command inside back quotes. If it's a builtin command, we
636 * want to save its output in a block obtained from malloc. Otherwise
637 * we fork off a subprocess and get the output of the command via a pipe.
638 * Should be called with interrupts off.
642 evalbackcmd(union node *n, struct backcmd *result)
646 struct stackmark smark;
647 struct jmploc jmploc;
648 struct jmploc *savehandler;
649 struct localvar *savelocalvars;
650 unsigned char saveoptreset;
660 setstackmark(&smark);
661 exitstatus = oexitstatus;
662 if (is_valid_fast_cmdsubst(n)) {
663 savelocalvars = localvars;
665 saveoptreset = shellparam.reset;
667 savehandler = handler;
668 if (setjmp(jmploc.loc)) {
669 if (exception == EXERROR)
671 else if (exception != 0) {
672 handler = savehandler;
675 localvars = savelocalvars;
676 shellparam.reset = saveoptreset;
677 longjmp(handler->loc, 1);
681 evalcommand(n, EV_BACKCMD, result);
683 handler = savehandler;
686 localvars = savelocalvars;
687 shellparam.reset = saveoptreset;
690 error("Pipe call failed: %s", strerror(errno));
692 if (forkshell(jp, n, FORK_NOJOB) == 0) {
699 evaltree(n, EV_EXIT);
705 popstackmark(&smark);
706 TRACE(("evalbackcmd done: fd=%d buf=%p nleft=%d jp=%p\n",
707 result->fd, result->buf, result->nleft, result->jp));
711 mustexpandto(const char *argtext, const char *mask)
714 if (*argtext == CTLQUOTEMARK || *argtext == CTLQUOTEEND) {
718 if (*argtext == CTLESC)
720 else if (BASESYNTAX[(int)*argtext] == CCTL)
722 if (*argtext != *mask)
724 if (*argtext == '\0')
732 isdeclarationcmd(struct narg *arg)
734 int have_command = 0;
738 while (mustexpandto(arg->text, "command")) {
740 arg = &arg->next->narg;
744 * To also allow "command -p" and "command --" as part of
745 * a declaration command, add code here.
746 * We do not do this, as ksh does not do it either and it
747 * is not required by POSIX.
750 return (mustexpandto(arg->text, "export") ||
751 mustexpandto(arg->text, "readonly") ||
752 (mustexpandto(arg->text, "local") &&
753 (have_command || !isfunc("local"))));
757 xtracecommand(struct arglist *varlist, int argc, char **argv)
760 const char *text, *p, *ps4;
763 ps4 = expandstr(ps4val());
764 out2str(ps4 != NULL ? ps4 : ps4val());
765 for (i = 0; i < varlist->count; i++) {
766 text = varlist->args[i];
769 p = strchr(text, '=');
772 outbin(text, p - text, out2);
778 for (i = 0; i < argc; i++) {
790 * Check if a builtin can safely be executed in the same process,
791 * even though it should be in a subshell (command substitution).
792 * Note that jobid, jobs, times and trap can show information not
793 * available in a child process; this is deliberate.
794 * The arguments should already have been expanded.
797 safe_builtin(int idx, int argc, char **argv)
799 /* Generated from builtins.def. */
800 if (safe_builtin_always(idx))
802 if (idx == EXPORTCMD || idx == TRAPCMD || idx == ULIMITCMD ||
804 return (argc <= 1 || (argc == 2 && argv[1][0] == '-'));
806 return (argc <= 1 || (argc == 2 && (argv[1][0] == '-' ||
807 argv[1][0] == '+') && argv[1][1] == 'o' &&
808 argv[1][2] == '\0'));
813 * Execute a simple command.
814 * Note: This may or may not return if (flags & EV_EXIT).
818 evalcommand(union node *cmd, int flags, struct backcmd *backcmd)
821 struct arglist arglist;
822 struct arglist varlist;
829 struct cmdentry cmdentry;
831 struct jmploc jmploc;
832 struct jmploc *savehandler;
834 struct shparam saveparam;
835 struct localvar *savelocalvars;
836 struct parsefile *savetopfile;
840 int do_clearcmdentry;
841 const char *path = pathval();
844 /* First expand the arguments. */
845 TRACE(("evalcommand(%p, %d) called\n", (void *)cmd, flags));
846 emptyarglist(&arglist);
847 emptyarglist(&varlist);
850 do_clearcmdentry = 0;
851 oexitstatus = exitstatus;
853 /* Add one slot at the beginning for tryexec(). */
854 appendarglist(&arglist, nullstr);
855 for (argp = cmd->ncmd.args ; argp ; argp = argp->narg.next) {
856 if (varflag && isassignment(argp->narg.text)) {
857 expandarg(argp, varflag == 1 ? &varlist : &arglist,
860 } else if (varflag == 1)
861 varflag = isdeclarationcmd(&argp->narg) ? 2 : 0;
862 expandarg(argp, &arglist, EXP_FULL | EXP_TILDE);
864 appendarglist(&arglist, nullstr);
865 expredir(cmd->ncmd.redirect);
866 argc = arglist.count - 2;
867 argv = &arglist.args[1];
871 if (iflag && funcnest == 0 && argc > 0)
872 lastarg = argv[argc - 1];
874 /* Print the command if xflag is set. */
876 xtracecommand(&varlist, argc, argv);
878 /* Now locate the command. */
880 /* Variable assignment(s) without command */
881 cmdentry.cmdtype = CMDBUILTIN;
882 cmdentry.u.index = BLTINCMD;
883 cmdentry.special = 0;
885 static const char PATH[] = "PATH=";
886 int cmd_flags = 0, bltinonly = 0;
889 * Modify the command lookup path, if a PATH= assignment
892 for (i = 0; i < varlist.count; i++)
893 if (strncmp(varlist.args[i], PATH, sizeof(PATH) - 1) == 0) {
894 path = varlist.args[i] + sizeof(PATH) - 1;
896 * On `PATH=... command`, we need to make
897 * sure that the command isn't using the
898 * non-updated hash table of the outer PATH
899 * setting and we need to make sure that
900 * the hash table isn't filled with items
901 * from the temporary setting.
903 * It would be better to forbid using and
904 * updating the table while this command
905 * runs, by the command finding mechanism
906 * is heavily integrated with hash handling,
907 * so we just delete the hash before and after
908 * the command runs. Partly deleting like
909 * changepatch() does doesn't seem worth the
910 * bookinging effort, since most such runs add
911 * directories in front of the new PATH.
914 do_clearcmdentry = 1;
919 cmdentry.u.index = find_builtin(*argv, &cmdentry.special);
920 if (cmdentry.u.index < 0) {
921 cmdentry.u.index = BLTINCMD;
927 find_command(argv[0], &cmdentry, cmd_flags, path);
928 /* implement the bltin and command builtins here */
929 if (cmdentry.cmdtype != CMDBUILTIN)
931 if (cmdentry.u.index == BLTINCMD) {
937 } else if (cmdentry.u.index == COMMANDCMD) {
940 if (!strcmp(argv[1], "-p")) {
943 if (argv[2][0] == '-') {
944 if (strcmp(argv[2], "--"))
954 path = _PATH_STDPATH;
956 do_clearcmdentry = 1;
957 } else if (!strcmp(argv[1], "--")) {
962 } else if (argv[1][0] == '-')
968 cmd_flags |= DO_NOFUNC;
974 * Special builtins lose their special properties when
975 * called via 'command'.
977 if (cmd_flags & DO_NOFUNC)
978 cmdentry.special = 0;
981 /* Fork off a child process if necessary. */
982 if (((cmdentry.cmdtype == CMDNORMAL || cmdentry.cmdtype == CMDUNKNOWN)
983 && ((flags & EV_EXIT) == 0 || have_traps()))
984 || ((flags & EV_BACKCMD) != 0
985 && (cmdentry.cmdtype != CMDBUILTIN ||
986 !safe_builtin(cmdentry.u.index, argc, argv)))) {
987 jp = makejob(cmd, 1);
989 if (flags & EV_BACKCMD) {
992 error("Pipe call failed: %s", strerror(errno));
994 if (cmdentry.cmdtype == CMDNORMAL &&
995 cmd->ncmd.redirect == NULL &&
996 varlist.count == 0 &&
997 (mode == FORK_FG || mode == FORK_NOJOB) &&
998 !disvforkset() && !iflag && !mflag) {
999 vforkexecshell(jp, argv, environment(), path,
1000 cmdentry.u.index, flags & EV_BACKCMD ? pip : NULL);
1003 if (forkshell(jp, cmd, mode) != 0)
1004 goto parent; /* at end of routine */
1005 if (flags & EV_BACKCMD) {
1012 flags &= ~EV_BACKCMD;
1017 /* This is the child process if a fork occurred. */
1018 /* Execute the command. */
1019 if (cmdentry.cmdtype == CMDFUNCTION) {
1021 trputs("Shell function: "); trargs(argv);
1023 saveparam = shellparam;
1024 shellparam.malloc = 0;
1025 shellparam.reset = 1;
1026 shellparam.nparam = argc - 1;
1027 shellparam.p = argv + 1;
1028 shellparam.optp = NULL;
1029 shellparam.optnext = NULL;
1031 savelocalvars = localvars;
1033 reffunc(cmdentry.u.func);
1034 savehandler = handler;
1035 if (setjmp(jmploc.loc)) {
1037 unreffunc(cmdentry.u.func);
1039 localvars = savelocalvars;
1040 freeparam(&shellparam);
1041 shellparam = saveparam;
1043 handler = savehandler;
1044 longjmp(handler->loc, 1);
1048 redirect(cmd->ncmd.redirect, REDIR_PUSH);
1050 for (i = 0; i < varlist.count; i++)
1051 mklocal(varlist.args[i]);
1052 exitstatus = oexitstatus;
1053 evaltree(getfuncnode(cmdentry.u.func),
1054 flags & (EV_TESTED | EV_EXIT));
1056 unreffunc(cmdentry.u.func);
1058 localvars = savelocalvars;
1059 freeparam(&shellparam);
1060 shellparam = saveparam;
1061 handler = savehandler;
1065 if (evalskip == SKIPRETURN) {
1070 exitshell(exitstatus);
1071 } else if (cmdentry.cmdtype == CMDBUILTIN) {
1073 trputs("builtin command: "); trargs(argv);
1075 mode = (cmdentry.u.index == EXECCMD)? 0 : REDIR_PUSH;
1076 if (flags == EV_BACKCMD) {
1077 memout.nextc = memout.buf;
1078 mode |= REDIR_BACKQ;
1080 savecmdname = commandname;
1081 savetopfile = getcurrentfile();
1082 cmdenviron = &varlist;
1084 savehandler = handler;
1085 if (setjmp(jmploc.loc)) {
1088 exitstatus = SIGINT+128;
1092 redirect(cmd->ncmd.redirect, mode);
1093 outclearerror(out1);
1095 * If there is no command word, redirection errors should
1096 * not be fatal but assignment errors should.
1099 cmdentry.special = 1;
1100 listsetvar(cmdenviron, cmdentry.special ? 0 : VNOSET);
1103 commandname = argv[0];
1105 nextopt_optptr = NULL; /* initialize nextopt */
1106 builtin_flags = flags;
1107 exitstatus = (*builtinfunc[cmdentry.u.index])(argc, argv);
1109 if (outiserror(out1)) {
1110 warning("write error on stdout");
1111 if (exitstatus == 0 || exitstatus == 1)
1121 handler = savehandler;
1122 commandname = savecmdname;
1124 exitshell(exitstatus);
1125 if (flags == EV_BACKCMD) {
1126 backcmd->buf = memout.buf;
1127 backcmd->nleft = memout.buf != NULL ?
1128 memout.nextc - memout.buf : 0;
1130 memout.nextc = NULL;
1131 memout.bufend = NULL;
1132 memout.bufsize = 64;
1134 if (cmdentry.u.index != EXECCMD)
1137 if (e != EXERROR || cmdentry.special)
1139 popfilesupto(savetopfile);
1140 if (flags != EV_BACKCMD)
1145 trputs("normal command: "); trargs(argv);
1147 redirect(cmd->ncmd.redirect, 0);
1148 for (i = 0; i < varlist.count; i++)
1149 setvareq(varlist.args[i], VEXPORT|VSTACK);
1150 envp = environment();
1151 shellexec(argv, envp, path, cmdentry.u.index);
1156 parent: /* parent process gets here (if we forked) */
1157 if (mode == FORK_FG) { /* argument to fork */
1159 exitstatus = waitforjob(jp, &signaled);
1161 if (iflag && loopnest > 0 && signaled) {
1162 evalskip = SKIPBREAK;
1163 skipcount = loopnest;
1165 } else if (mode == FORK_NOJOB) {
1166 backcmd->fd = pip[0];
1173 setvar("_", lastarg, 0);
1174 if (do_clearcmdentry)
1181 * Search for a command. This is called before we fork so that the
1182 * location of the command will be available in the parent as well as
1183 * the child. The check for "goodname" is an overly conservative
1184 * check that the name will not be subject to expansion.
1188 prehash(union node *n)
1190 struct cmdentry entry;
1192 if (n && n->type == NCMD && n->ncmd.args)
1193 if (goodname(n->ncmd.args->narg.text))
1194 find_command(n->ncmd.args->narg.text, &entry, 0,
1201 * Builtin commands. Builtin commands whose functions are closely
1202 * tied to evaluation are implemented here.
1206 * No command given, a bltin command with no arguments, or a bltin command
1207 * with an invalid name.
1211 bltincmd(int argc, char **argv)
1214 out2fmt_flush("%s: not found\n", argv[1]);
1218 * Preserve exitstatus of a previous possible command substitution
1226 * Handle break and continue commands. Break, continue, and return are
1227 * all handled by setting the evalskip flag. The evaluation routines
1228 * above all check this flag, and if it is set they start skipping
1229 * commands rather than executing them. The variable skipcount is
1230 * the number of loops to break/continue, or the number of function
1231 * levels to return. (The latter is always 1.) It should probably
1232 * be an error to break out of more loops than exist, but it isn't
1233 * in the standard shell so we don't make it one here.
1237 breakcmd(int argc, char **argv)
1243 /* Allow arbitrarily large numbers. */
1244 n = strtol(argv[1], &end, 10);
1245 if (!is_digit(argv[1][0]) || *end != '\0')
1246 error("Illegal number: %s", argv[1]);
1252 evalskip = (**argv == 'c')? SKIPCONT : SKIPBREAK;
1259 * The `command' command.
1262 commandcmd(int argc __unused, char **argv __unused)
1268 path = bltinlookup("PATH", 1);
1270 while ((ch = nextopt("pvV")) != '\0') {
1273 path = _PATH_STDPATH;
1276 cmd = TYPECMD_SMALLV;
1285 if (*argptr == NULL || argptr[1] != NULL)
1286 error("wrong number of arguments");
1287 return typecmd_impl(2, argptr - 1, cmd, path);
1289 if (*argptr != NULL)
1290 error("commandcmd bad call");
1293 * Do nothing successfully if no command was specified;
1294 * ksh also does this.
1301 * The return command.
1305 returncmd(int argc, char **argv)
1307 int ret = argc > 1 ? number(argv[1]) : oexitstatus;
1309 evalskip = SKIPRETURN;
1316 falsecmd(int argc __unused, char **argv __unused)
1323 truecmd(int argc __unused, char **argv __unused)
1330 execcmd(int argc, char **argv)
1335 * Because we have historically not supported any options,
1336 * only treat "--" specially.
1338 if (argc > 1 && strcmp(argv[1], "--") == 0)
1341 iflag = 0; /* exit on error */
1344 for (i = 0; i < cmdenviron->count; i++)
1345 setvareq(cmdenviron->args[i], VEXPORT|VSTACK);
1346 shellexec(argv + 1, environment(), pathval(), 0);
1354 timescmd(int argc __unused, char **argv __unused)
1357 long shumins, shsmins, chumins, chsmins;
1358 double shusecs, shssecs, chusecs, chssecs;
1360 if (getrusage(RUSAGE_SELF, &ru) < 0)
1362 shumins = ru.ru_utime.tv_sec / 60;
1363 shusecs = ru.ru_utime.tv_sec % 60 + ru.ru_utime.tv_usec / 1000000.;
1364 shsmins = ru.ru_stime.tv_sec / 60;
1365 shssecs = ru.ru_stime.tv_sec % 60 + ru.ru_stime.tv_usec / 1000000.;
1366 if (getrusage(RUSAGE_CHILDREN, &ru) < 0)
1368 chumins = ru.ru_utime.tv_sec / 60;
1369 chusecs = ru.ru_utime.tv_sec % 60 + ru.ru_utime.tv_usec / 1000000.;
1370 chsmins = ru.ru_stime.tv_sec / 60;
1371 chssecs = ru.ru_stime.tv_sec % 60 + ru.ru_stime.tv_usec / 1000000.;
1372 out1fmt("%ldm%.3fs %ldm%.3fs\n%ldm%.3fs %ldm%.3fs\n", shumins,
1373 shusecs, shsmins, shssecs, chumins, chusecs, chsmins, chssecs);