static void dset(Char *dp) { /* * Don't call set() directly cause if the directory contains ` or * other junk characters glob will fail. */ setcopy(STRowd, varval(STRcwd), VAR_READWRITE|VAR_NOGLOB); setcopy(STRcwd, dp, VAR_READWRITE|VAR_NOGLOB); tsetenv(STRPWD, dp); }
/*ARGSUSED*/ void dover(Char **v, struct command *c) { Char *p; setname(short2str(*v++)); if (!*v) { if (!(p = tgetenv(STRSYSTYPE))) stderror(ERR_NAME | ERR_STRING, CGETS(23, 29, "System type is not set")); xprintf("%S\n", p); } else { tsetenv(STRSYSTYPE, getv(*v) ? STRbsd43 : STRsys53); dohash(NULL, NULL); } }
static void exportpath(Char **val) { struct Strbuf buf = Strbuf_INIT; Char *exppath; if (val) while (*val) { Strbuf_append(&buf, *val++); if (*val == 0 || eq(*val, STRRparen)) break; Strbuf_append1(&buf, PATHSEP); } exppath = Strbuf_finish(&buf); cleanup_push(exppath, xfree); tsetenv(STRKPATH, exppath); cleanup_until(exppath); }
static void update_vars(Char *vp) { if (eq(vp, STRpath)) { struct varent *p = adrof(STRpath); if (p == NULL) stderror(ERR_NAME | ERR_UNDVAR); else { exportpath(p->vec); dohash(NULL, NULL); } } else if (eq(vp, STRnoclobber)) { struct varent *p = adrof(STRnoclobber); if (p == NULL) stderror(ERR_NAME | ERR_UNDVAR); else no_clobber = set_noclobber(p->vec); } else if (eq(vp, STRhistchars)) { Char *pn = varval(vp); HIST = *pn++; if (HIST) HISTSUB = *pn; else HISTSUB = HIST; } else if (eq(vp, STRpromptchars)) { Char *pn = varval(vp); PRCH = *pn++; if (PRCH) PRCHROOT = *pn; else PRCHROOT = PRCH; } else if (eq(vp, STRhistlit)) { HistLit = 1; } else if (eq(vp, STRuser)) { tsetenv(STRKUSER, varval(vp)); tsetenv(STRLOGNAME, varval(vp)); } else if (eq(vp, STRgroup)) { tsetenv(STRKGROUP, varval(vp)); } else if (eq(vp, STRwordchars)) { word_chars = varval(vp); } else if (eq(vp, STRloginsh)) { loginsh = 1; } else if (eq(vp, STRanyerror)) { anyerror = 1; } else if (eq(vp, STRsymlinks)) { Char *pn = varval(vp); if (eq(pn, STRignore)) symlinks = SYM_IGNORE; else if (eq(pn, STRexpand)) symlinks = SYM_EXPAND; else if (eq(pn, STRchase)) symlinks = SYM_CHASE; else symlinks = 0; } else if (eq(vp, STRterm)) { Char *cp = varval(vp); tsetenv(STRKTERM, cp); #ifdef DOESNT_WORK_RIGHT cp = getenv("TERMCAP"); if (cp && (*cp != '/')) /* if TERMCAP and not a path */ Unsetenv(STRTERMCAP); #endif /* DOESNT_WORK_RIGHT */ GotTermCaps = 0; if (noediting && Strcmp(cp, STRnetwork) != 0 && Strcmp(cp, STRunknown) != 0 && Strcmp(cp, STRdumb) != 0) { editing = 1; noediting = 0; setNS(STRedit); } ed_Init(); /* reset the editor */ } else if (eq(vp, STRhome)) { Char *cp, *canon; cp = Strsave(varval(vp)); /* get the old value back */ cleanup_push(cp, xfree); /* * convert to cononical pathname (possibly resolving symlinks) */ canon = dcanon(cp, cp); cleanup_ignore(cp); cleanup_until(cp); cleanup_push(canon, xfree); setcopy(vp, canon, VAR_READWRITE); /* have to save the new val */ /* and now mirror home with HOME */ tsetenv(STRKHOME, canon); /* fix directory stack for new tilde home */ dtilde(); cleanup_until(canon); } else if (eq(vp, STRedit)) { editing = 1; noediting = 0; /* PWP: add more stuff in here later */ } else if (eq(vp, STRvimode)) { VImode = 1; update_wordchars(); } else if (eq(vp, STRshlvl)) { tsetenv(STRKSHLVL, varval(vp)); } else if (eq(vp, STRignoreeof)) { Char *cp; numeof = 0; for ((cp = varval(STRignoreeof)); cp && *cp; cp++) { if (!Isdigit(*cp)) { numeof = 0; break; } numeof = numeof * 10 + *cp - '0'; } if (numeof <= 0) numeof = 26; /* Sanity check */ } else if (eq(vp, STRbackslash_quote)) { bslash_quote = 1; } else if (eq(vp, STRcompat_expr)) { compat_expr = 1; } else if (eq(vp, STRdirstack)) { dsetstack(); } else if (eq(vp, STRrecognize_only_executables)) { tw_cmd_free(); } else if (eq(vp, STRkillring)) { SetKillRing((int)getn(varval(vp))); } else if (eq(vp, STRhistory)) { sethistory((int)getn(varval(vp))); } #ifndef HAVENOUTMP else if (eq(vp, STRwatch)) { resetwatch(); } #endif /* HAVENOUTMP */ else if (eq(vp, STRimplicitcd)) { implicit_cd = ((eq(varval(vp), STRverbose)) ? 2 : 1); } else if (eq(vp, STRcdtohome)) { cdtohome = 1; } #ifdef COLOR_LS_F else if (eq(vp, STRcolor)) { set_color_context(); } #endif /* COLOR_LS_F */ #if defined(KANJI) && defined(SHORT_STRINGS) && defined(DSPMBYTE) else if(eq(vp, CHECK_MBYTEVAR) || eq(vp, STRnokanji)) { update_dspmbyte_vars(); } #endif #ifdef NLS_CATALOGS else if (eq(vp, STRcatalog)) { nlsclose(); nlsinit(); } #if defined(FILEC) && defined(TIOCSTI) else if (eq(vp, STRfilec)) filec = 1; #endif #endif /* NLS_CATALOGS */ }
/* tw_complete(): * Return the appropriate completion for the command * * valid completion strings are: * p/<range>/<completion>/[<suffix>/] positional * c/<pattern>/<completion>/[<suffix>/] current word ignore pattern * C/<pattern>/<completion>/[<suffix>/] current word with pattern * n/<pattern>/<completion>/[<suffix>/] next word * N/<pattern>/<completion>/[<suffix>/] next-next word */ int tw_complete(const Char *line, Char **word, Char **pat, int looking, eChar *suf) { Char *buf, **vec, **wl; static Char nomatch[2] = { (Char) ~0, 0x00 }; const Char *ptr; size_t wordno; int n; buf = Strsave(line); cleanup_push(buf, xfree); /* Single-character words, empty current word, terminating NULL */ wl = xmalloc(((Strlen(line) + 1) / 2 + 2) * sizeof (*wl)); cleanup_push(wl, xfree); /* find the command */ if ((wl[0] = tw_tok(buf)) == NULL || wl[0] == INVPTR) { cleanup_until(buf); return TW_ZERO; } /* * look for hardwired command completions using a globbing * search and for arguments using a normal search. */ if ((vec = tw_find(wl[0], &completions, (looking == TW_COMMAND))) == NULL) { cleanup_until(buf); return looking; } /* tokenize the line one more time :-( */ for (wordno = 1; (wl[wordno] = tw_tok(NULL)) != NULL && wl[wordno] != INVPTR; wordno++) continue; if (wl[wordno] == INVPTR) { /* Found a meta character */ cleanup_until(buf); return TW_ZERO; /* de-activate completions */ } #ifdef TDEBUG { size_t i; for (i = 0; i < wordno; i++) xprintf("'%s' ", short2str(wl[i])); xprintf("\n"); } #endif /* TDEBUG */ /* if the current word is empty move the last word to the next */ if (**word == '\0') { wl[wordno] = *word; wordno++; } wl[wordno] = NULL; #ifdef TDEBUG xprintf("\r\n"); xprintf(" w#: %lu\n", (unsigned long)wordno); xprintf("line: %s\n", short2str(line)); xprintf(" cmd: %s\n", short2str(wl[0])); xprintf("word: %s\n", short2str(*word)); xprintf("last: %s\n", wordno >= 2 ? short2str(wl[wordno-2]) : "n/a"); xprintf("this: %s\n", wordno >= 1 ? short2str(wl[wordno-1]) : "n/a"); #endif /* TDEBUG */ for (;vec != NULL && (ptr = vec[0]) != NULL; vec++) { Char *ran, /* The pattern or range X/<range>/XXXX/ */ *com, /* The completion X/XXXXX/<completion>/ */ *pos = NULL; /* scratch pointer */ int cmd, res; Char sep; /* the command and separator characters */ int exact; if (ptr[0] == '\0') continue; #ifdef TDEBUG xprintf("match %s\n", short2str(ptr)); #endif /* TDEBUG */ switch (cmd = ptr[0]) { case 'N': pos = (wordno < 3) ? nomatch : wl[wordno - 3]; break; case 'n': pos = (wordno < 2) ? nomatch : wl[wordno - 2]; break; case 'c': case 'C': pos = (wordno < 1) ? nomatch : wl[wordno - 1]; break; case 'p': break; default: stderror(ERR_COMPINV, CGETS(27, 1, "command"), cmd); return TW_ZERO; } sep = ptr[1]; if (!Ispunct(sep)) { /* Truncates data if WIDE_STRINGS */ stderror(ERR_COMPINV, CGETS(27, 2, "separator"), (int)sep); return TW_ZERO; } ptr = tw_dollar(&ptr[2], wl, wordno, &ran, sep, CGETS(27, 3, "pattern")); cleanup_push(ran, xfree); if (ran[0] == '\0') /* check for empty pattern (disallowed) */ { stderror(ERR_COMPINC, cmd == 'p' ? CGETS(27, 4, "range") : CGETS(27, 3, "pattern"), ""); return TW_ZERO; } ptr = tw_dollar(ptr, wl, wordno, &com, sep, CGETS(27, 5, "completion")); cleanup_push(com, xfree); if (*ptr != '\0') { if (*ptr == sep) *suf = CHAR_ERR; else *suf = *ptr; } else *suf = '\0'; #ifdef TDEBUG xprintf("command: %c\nseparator: %c\n", cmd, (int)sep); xprintf("pattern: %s\n", short2str(ran)); xprintf("completion: %s\n", short2str(com)); xprintf("suffix: "); switch (*suf) { case 0: xprintf("*auto suffix*\n"); break; case CHAR_ERR: xprintf("*no suffix*\n"); break; default: xprintf("%c\n", (int)*suf); break; } #endif /* TDEBUG */ exact = 0; switch (cmd) { case 'p': /* positional completion */ #ifdef TDEBUG xprintf("p: tw_pos(%s, %lu) = ", short2str(ran), (unsigned long)wordno - 1); xprintf("%d\n", tw_pos(ran, wordno - 1)); #endif /* TDEBUG */ if (!tw_pos(ran, wordno - 1)) { cleanup_until(ran); continue; } break; case 'N': /* match with the next-next word */ case 'n': /* match with the next word */ exact = 1; /*FALLTHROUGH*/ case 'c': /* match with the current word */ case 'C': #ifdef TDEBUG xprintf("%c: ", cmd); #endif /* TDEBUG */ if ((n = tw_match(pos, ran, exact)) < 0) { cleanup_until(ran); continue; } if (cmd == 'c') *word += n; break; default: abort(); /* Cannot happen */ } tsetenv(STRCOMMAND_LINE, line); res = tw_result(com, pat); Unsetenv(STRCOMMAND_LINE); cleanup_until(buf); return res; } cleanup_until(buf); *suf = '\0'; return TW_ZERO; } /* end tw_complete */
/*VARARGS 1*/ void execute(struct command *t, volatile int wanttty, int *pipein, int *pipeout, int do_glob) { int forked = 0; const struct biltins * volatile bifunc; pid_t pid = 0; int pv[2]; sigset_t set; static sigset_t csigset; #ifdef VFORK static int onosigchld = 0; #endif /* VFORK */ static int nosigchld = 0; (void) &wanttty; (void) &forked; (void) &bifunc; if (t == 0) return; #ifdef WINNT_NATIVE { if ((varval(STRNTslowexec) == STRNULL) && !t->t_dcdr && !t->t_dcar && !t->t_dflg && !didfds && (intty || intact) && (t->t_dtyp == NODE_COMMAND) && !isbfunc(t)) { if ((t->t_dcom[0][0] & (QUOTE | TRIM)) == QUOTE) (void) Strcpy(t->t_dcom[0], t->t_dcom[0] + 1); Dfix(t); if (nt_try_fast_exec(t) == 0) return; } } #endif /* WINNT_NATIVE */ /* * Ed [email protected] & Dominic [email protected] * Sat Feb 25 03:13:11 PST 1995 * try implicit cd if we have a 1 word command */ if (implicit_cd && (intty || intact) && t->t_dcom && t->t_dcom[0] && t->t_dcom[0][0] && (blklen(t->t_dcom) == 1) && !noexec) { Char *sCName; struct stat stbuf; char *pathname; sCName = dollar(t->t_dcom[0]); if (sCName != NULL && sCName[0] == '~') { struct Strbuf buf = Strbuf_INIT; const Char *name_end; for (name_end = sCName + 1; *name_end != '\0' && *name_end != '/'; name_end++) continue; if (name_end != sCName + 1) { Char *name, *home; name = Strnsave(sCName + 1, name_end - (sCName + 1)); home = gethdir(name); if (home != NULL) { Strbuf_append(&buf, home); xfree(home); } else Strbuf_append(&buf, name); xfree(name); } else Strbuf_append(&buf, varval(STRhome)); Strbuf_append(&buf, name_end); xfree(sCName); sCName = Strbuf_finish(&buf); } pathname = short2str(sCName); xfree(sCName); /* if this is a dir, tack a "cd" on as the first arg */ if (pathname != NULL && ((stat(pathname, &stbuf) != -1 && S_ISDIR(stbuf.st_mode)) #ifdef WINNT_NATIVE || (pathname[0] && pathname[1] == ':' && pathname[2] == '\0') #endif /* WINNT_NATIVE */ )) { Char *vCD[2]; Char **ot_dcom = t->t_dcom; vCD[0] = Strsave(STRcd); vCD[1] = NULL; t->t_dcom = blkspl(vCD, ot_dcom); xfree(ot_dcom); if (implicit_cd > 1) { blkpr(t->t_dcom); xputchar( '\n' ); } } } /* * From: Michael Schroeder <*****@*****.**> * Don't check for wantty > 0... */ if (t->t_dflg & F_AMPERSAND) wanttty = 0; switch (t->t_dtyp) { case NODE_COMMAND: if ((t->t_dcom[0][0] & (QUOTE | TRIM)) == QUOTE) memmove(t->t_dcom[0], t->t_dcom[0] + 1, (Strlen(t->t_dcom[0] + 1) + 1) * sizeof (*t->t_dcom[0])); if ((t->t_dflg & F_REPEAT) == 0) Dfix(t); /* $ " ' \ */ if (t->t_dcom[0] == 0) { return; } /*FALLTHROUGH*/ case NODE_PAREN: #ifdef BACKPIPE if (t->t_dflg & F_PIPEIN) mypipe(pipein); #else /* !BACKPIPE */ if (t->t_dflg & F_PIPEOUT) mypipe(pipeout); #endif /* BACKPIPE */ /* * Must do << early so parent will know where input pointer should be. * If noexec then this is all we do. */ if (t->t_dflg & F_READ) { xclose(0); heredoc(t->t_dlef); if (noexec) xclose(0); } setcopy(STRstatus, STR0, VAR_READWRITE); /* * This mess is the necessary kludge to handle the prefix builtins: * nice, nohup, time. These commands can also be used by themselves, * and this is not handled here. This will also work when loops are * parsed. */ while (t->t_dtyp == NODE_COMMAND) if (eq(t->t_dcom[0], STRnice)) { if (t->t_dcom[1]) { if (strchr("+-", t->t_dcom[1][0])) { if (t->t_dcom[2]) { setname("nice"); t->t_nice = (unsigned char)getn(t->t_dcom[1]); lshift(t->t_dcom, 2); t->t_dflg |= F_NICE; } else break; } else { t->t_nice = 4; lshift(t->t_dcom, 1); t->t_dflg |= F_NICE; } } else break; } else if (eq(t->t_dcom[0], STRnohup)) { if (t->t_dcom[1]) { t->t_dflg |= F_NOHUP; lshift(t->t_dcom, 1); } else break; } else if (eq(t->t_dcom[0], STRhup)) { if (t->t_dcom[1]) { t->t_dflg |= F_HUP; lshift(t->t_dcom, 1); } else break; } else if (eq(t->t_dcom[0], STRtime)) { if (t->t_dcom[1]) { t->t_dflg |= F_TIME; lshift(t->t_dcom, 1); } else break; } #ifdef F_VER else if (eq(t->t_dcom[0], STRver)) if (t->t_dcom[1] && t->t_dcom[2]) { setname("ver"); t->t_systype = getv(t->t_dcom[1]); lshift(t->t_dcom, 2); t->t_dflg |= F_VER; } else break; #endif /* F_VER */ else break; /* is it a command */ if (t->t_dtyp == NODE_COMMAND) { /* * Check if we have a builtin function and remember which one. */ bifunc = isbfunc(t); if (noexec) { /* * Continue for builtins that are part of the scripting language */ if (bifunc == NULL) break; if (bifunc->bfunct != (bfunc_t)dobreak && bifunc->bfunct != (bfunc_t)docontin && bifunc->bfunct != (bfunc_t)doelse && bifunc->bfunct != (bfunc_t)doend && bifunc->bfunct != (bfunc_t)doforeach&& bifunc->bfunct != (bfunc_t)dogoto && bifunc->bfunct != (bfunc_t)doif && bifunc->bfunct != (bfunc_t)dorepeat && bifunc->bfunct != (bfunc_t)doswbrk && bifunc->bfunct != (bfunc_t)doswitch && bifunc->bfunct != (bfunc_t)dowhile && bifunc->bfunct != (bfunc_t)dozip) break; } } else { /* not a command */ bifunc = NULL; if (noexec) break; } /* * GrP Executing a command - run jobcmd hook * Don't run for builtins * Don't run if we're not in a tty * Don't run if we're not really executing */ /* * CR - Charles Ross Aug 2005 * added "isoutatty". * The new behavior is that the jobcmd won't be executed * if stdout (SHOUT) isnt attached to a tty.. IE when * redirecting, or using backquotes etc.. */ if (t->t_dtyp == NODE_COMMAND && !bifunc && !noexec && intty && isoutatty) { Char *cmd = unparse(t); cleanup_push(cmd, xfree); job_cmd(cmd); cleanup_until(cmd); } /* * We fork only if we are timed, or are not the end of a parenthesized * list and not a simple builtin function. Simple meaning one that is * not pipedout, niced, nohupped, or &'d. It would be nice(?) to not * fork in some of these cases. */ #ifdef BACKPIPE /* * Can't have NOFORK for the tail of a pipe - because it is not the * last command spawned (even if it is at the end of a parenthesised * list). */ if (t->t_dflg & F_PIPEIN) t->t_dflg &= ~(F_NOFORK); #else /* * "command | builtin" may cause major misbehaviour as noted in * in the BUGS file entry * Subject: Redirected input to built-in functions misbehaves badly * forking when the builtin is the end of the pipe corrects the * problem. */ if (bifunc && (t->t_dflg & F_PIPEIN)) t->t_dflg &= ~(F_NOFORK); #endif /* BACKPIPE */ /* * Prevent forking cd, pushd, popd, chdir cause this will cause the * shell not to change dir! (XXX: but only for nice?) */ if (bifunc && (bifunc->bfunct == (bfunc_t)dochngd || bifunc->bfunct == (bfunc_t)dopushd || bifunc->bfunct == (bfunc_t)dopopd)) t->t_dflg &= ~(F_NICE); if (((t->t_dflg & F_TIME) || ((t->t_dflg & F_NOFORK) == 0 && (!bifunc || t->t_dflg & (F_PIPEOUT | F_AMPERSAND | F_NICE | F_NOHUP | F_HUP)))) || /* * We have to fork for eval too. */ (bifunc && (t->t_dflg & F_PIPEIN) != 0 && bifunc->bfunct == (bfunc_t)doeval)) { #ifdef VFORK if (t->t_dtyp == NODE_PAREN || t->t_dflg & (F_REPEAT | F_AMPERSAND) || bifunc) #endif /* VFORK */ { forked++; /* * We need to block SIGCHLD here, so that if the process does * not die before we can set the process group */ if (wanttty >= 0 && !nosigchld) { sigemptyset(&set); sigaddset(&set, SIGCHLD); (void)sigprocmask(SIG_BLOCK, &set, &csigset); nosigchld = 1; } pid = pfork(t, wanttty); if (pid == 0 && nosigchld) { sigprocmask(SIG_SETMASK, &csigset, NULL); nosigchld = 0; } else if (pid != 0 && (t->t_dflg & F_AMPERSAND)) backpid = pid; } #ifdef VFORK else { int ochild, osetintr, ohaderr, odidfds; int oSHIN, oSHOUT, oSHDIAG, oOLDSTD, otpgrp; int oisoutatty, oisdiagatty; sigset_t oset, ocsigset; # ifndef CLOSE_ON_EXEC int odidcch; # endif /* !CLOSE_ON_EXEC */ /* * Prepare for the vfork by saving everything that the child * corrupts before it exec's. Note that in some signal * implementations which keep the signal info in user space * (e.g. Sun's) it will also be necessary to save and restore * the current sigvec's for the signals the child touches * before it exec's. */ /* * Sooooo true... If this is a Sun, save the sigvec's. (Skip * Gilbrech - 11/22/87) */ # ifdef SAVESIGVEC struct sigaction savesv[NSIGSAVED]; sigset_t savesm; # endif /* SAVESIGVEC */ if (wanttty >= 0 && !nosigchld && !noexec) { sigemptyset(&set); sigaddset(&set, SIGCHLD); (void)sigprocmask(SIG_BLOCK, &set, &csigset); nosigchld = 1; } sigemptyset(&set); sigaddset(&set, SIGCHLD); sigaddset(&set, SIGINT); (void)sigprocmask(SIG_BLOCK, &set, &oset); ochild = child; osetintr = setintr; ohaderr = haderr; odidfds = didfds; # ifndef CLOSE_ON_EXEC odidcch = didcch; # endif /* !CLOSE_ON_EXEC */ oSHIN = SHIN; oSHOUT = SHOUT; oSHDIAG = SHDIAG; oOLDSTD = OLDSTD; otpgrp = tpgrp; oisoutatty = isoutatty; oisdiagatty = isdiagatty; ocsigset = csigset; onosigchld = nosigchld; Vsav = Vdp = 0; Vexpath = 0; Vt = 0; # ifdef SAVESIGVEC savesigvec(savesv, savesm); # endif /* SAVESIGVEC */ if (use_fork) pid = fork(); else pid = vfork(); if (pid < 0) { # ifdef SAVESIGVEC restoresigvec(savesv, savesm); # endif /* SAVESIGVEC */ sigprocmask(SIG_SETMASK, &oset, NULL); stderror(ERR_NOPROC); } forked++; if (pid) { /* parent */ # ifdef SAVESIGVEC restoresigvec(savesv, savesm); # endif /* SAVESIGVEC */ child = ochild; setintr = osetintr; haderr = ohaderr; didfds = odidfds; SHIN = oSHIN; # ifndef CLOSE_ON_EXEC didcch = odidcch; # endif /* !CLOSE_ON_EXEC */ SHOUT = oSHOUT; SHDIAG = oSHDIAG; OLDSTD = oOLDSTD; tpgrp = otpgrp; isoutatty = oisoutatty; isdiagatty = oisdiagatty; csigset = ocsigset; nosigchld = onosigchld; xfree(Vsav); Vsav = 0; xfree(Vdp); Vdp = 0; xfree(Vexpath); Vexpath = 0; blk_cleanup(Vt); Vt = 0; /* this is from pfork() */ palloc(pid, t); sigprocmask(SIG_SETMASK, &oset, NULL); } else { /* child */ /* this is from pfork() */ pid_t pgrp; int ignint = 0; if (nosigchld) { sigprocmask(SIG_SETMASK, &csigset, NULL); nosigchld = 0; } if (setintr) ignint = (tpgrp == -1 && (t->t_dflg & F_NOINTERRUPT)) || (gointr && eq(gointr, STRminus)); pgrp = pcurrjob ? pcurrjob->p_jobid : getpid(); child++; if (setintr) { setintr = 0; /* * casts made right for SunOS 4.0 by Douglas C. Schmidt * <*****@*****.**> * (thanks! -- PWP) * * ignint ifs cleaned by Johan Widen <[email protected]> * (thanks again) */ if (ignint) { (void) signal(SIGINT, SIG_IGN); (void) signal(SIGQUIT, SIG_IGN); } else { (void) signal(SIGINT, vffree); (void) signal(SIGQUIT, SIG_DFL); } # ifdef BSDJOBS if (wanttty >= 0) { (void) signal(SIGTSTP, SIG_DFL); (void) signal(SIGTTIN, SIG_DFL); (void) signal(SIGTTOU, SIG_DFL); } # endif /* BSDJOBS */ sigaction(SIGTERM, &parterm, NULL); } else if (tpgrp == -1 && (t->t_dflg & F_NOINTERRUPT)) { (void) signal(SIGINT, SIG_IGN); (void) signal(SIGQUIT, SIG_IGN); } pgetty(wanttty, pgrp); if (t->t_dflg & F_NOHUP) (void) signal(SIGHUP, SIG_IGN); if (t->t_dflg & F_HUP) (void) signal(SIGHUP, SIG_DFL); if (t->t_dflg & F_NICE) { int nval = SIGN_EXTEND_CHAR(t->t_nice); # if defined(HAVE_SETPRIORITY) && defined(PRIO_PROCESS) if (setpriority(PRIO_PROCESS, 0, nval) == -1 && errno) stderror(ERR_SYSTEM, "setpriority", strerror(errno)); # else /* !HAVE_SETPRIORITY || !PRIO_PROCESS */ (void) nice(nval); # endif /* HAVE_SETPRIORITY && PRIO_PROCESS */ } # ifdef F_VER if (t->t_dflg & F_VER) { tsetenv(STRSYSTYPE, t->t_systype ? STRbsd43 : STRsys53); dohash(NULL, NULL); } # endif /* F_VER */ } } #endif /* VFORK */ } if (pid != 0) { /* * It would be better if we could wait for the whole job when we * knew the last process had been started. Pwait, in fact, does * wait for the whole job anyway, but this test doesn't really * express our intentions. */ #ifdef BACKPIPE if (didfds == 0 && t->t_dflg & F_PIPEOUT) { xclose(pipeout[0]); xclose(pipeout[1]); } if ((t->t_dflg & F_PIPEIN) != 0) break; #else /* !BACKPIPE */ if (didfds == 0 && t->t_dflg & F_PIPEIN) { xclose(pipein[0]); xclose(pipein[1]); } if ((t->t_dflg & F_PIPEOUT) != 0) break; #endif /* BACKPIPE */ if (nosigchld) { sigprocmask(SIG_SETMASK, &csigset, NULL); nosigchld = 0; } if ((t->t_dflg & F_AMPERSAND) == 0) pwait(); break; } doio(t, pipein, pipeout); #ifdef BACKPIPE if (t->t_dflg & F_PIPEIN) { xclose(pipein[0]); xclose(pipein[1]); } #else /* !BACKPIPE */ if (t->t_dflg & F_PIPEOUT) { xclose(pipeout[0]); xclose(pipeout[1]); } #endif /* BACKPIPE */ /* * Perform a builtin function. If we are not forked, arrange for * possible stopping */ if (bifunc) { if (forked) { func(t, bifunc); exitstat(); } else { jmp_buf_t oldexit; int ohaderr = haderr; getexit(oldexit); if (setexit() == 0) func(t, bifunc); resexit(oldexit); haderr = ohaderr; if (adrof(STRprintexitvalue)) { int rv = getn(varval(STRstatus)); if (rv != 0) xprintf(CGETS(17, 2, "Exit %d\n"), rv); } } break; } if (t->t_dtyp != NODE_PAREN) { doexec(t, do_glob); /* NOTREACHED */ } /* * For () commands must put new 0,1,2 in FSH* and recurse */ if ((OLDSTD = dcopy(0, FOLDSTD)) >= 0) (void)close_on_exec(OLDSTD, 1); if ((SHOUT = dcopy(1, FSHOUT)) >= 0) { (void)close_on_exec(SHOUT, 1); isoutatty = isatty(SHOUT); } if ((SHDIAG = dcopy(2, FSHDIAG)) >= 0) { (void)close_on_exec(SHDIAG, 1); isdiagatty = isatty(SHDIAG); } xclose(SHIN); SHIN = -1; #ifndef CLOSE_ON_EXEC didcch = 0; #else (void) close_on_exec(FSHOUT, 1); (void) close_on_exec(FSHDIAG, 1); (void) close_on_exec(FOLDSTD, 1); #endif /* !CLOSE_ON_EXEC */ didfds = 0; wanttty = -1; t->t_dspr->t_dflg |= t->t_dflg & (F_NOINTERRUPT | F_BACKQ); execute(t->t_dspr, wanttty, NULL, NULL, do_glob); exitstat(); case NODE_PIPE: #ifdef BACKPIPE t->t_dcdr->t_dflg |= F_PIPEIN | (t->t_dflg & (F_PIPEOUT | F_AMPERSAND | F_NOFORK | F_NOINTERRUPT | F_BACKQ)); execute(t->t_dcdr, wanttty, pv, pipeout, do_glob); t->t_dcar->t_dflg |= F_PIPEOUT | (t->t_dflg & (F_PIPEIN | F_AMPERSAND | F_STDERR | F_NOINTERRUPT | F_BACKQ)); execute(t->t_dcar, wanttty, pipein, pv, do_glob); #else /* !BACKPIPE */ t->t_dcar->t_dflg |= F_PIPEOUT | (t->t_dflg & (F_PIPEIN | F_AMPERSAND | F_STDERR | F_NOINTERRUPT | F_BACKQ)); execute(t->t_dcar, wanttty, pipein, pv, do_glob); t->t_dcdr->t_dflg |= F_PIPEIN | (t->t_dflg & (F_PIPEOUT | F_AMPERSAND | F_NOFORK | F_NOINTERRUPT | F_BACKQ)); execute(t->t_dcdr, wanttty, pv, pipeout, do_glob); #endif /* BACKPIPE */ break; case NODE_LIST: if (t->t_dcar) { t->t_dcar->t_dflg |= t->t_dflg & (F_NOINTERRUPT | F_BACKQ); execute(t->t_dcar, wanttty, NULL, NULL, do_glob); /* * In strange case of A&B make a new job after A */ if (t->t_dcar->t_dflg & F_AMPERSAND && t->t_dcdr && (t->t_dcdr->t_dflg & F_AMPERSAND) == 0) pendjob(); } if (t->t_dcdr) { t->t_dcdr->t_dflg |= t->t_dflg & (F_NOFORK | F_NOINTERRUPT | F_BACKQ); execute(t->t_dcdr, wanttty, NULL, NULL, do_glob); } break; case NODE_OR: case NODE_AND: if (t->t_dcar) { t->t_dcar->t_dflg |= t->t_dflg & (F_NOINTERRUPT | F_BACKQ); execute(t->t_dcar, wanttty, NULL, NULL, do_glob); if ((getn(varval(STRstatus)) == 0) != (t->t_dtyp == NODE_AND)) { return; } } if (t->t_dcdr) { t->t_dcdr->t_dflg |= t->t_dflg & (F_NOFORK | F_NOINTERRUPT | F_BACKQ); execute(t->t_dcdr, wanttty, NULL, NULL, do_glob); } break; default: break; } /* * Fall through for all breaks from switch * * If there will be no more executions of this command, flush all file * descriptors. Places that turn on the F_REPEAT bit are responsible for * doing donefds after the last re-execution */ if (didfds && !(t->t_dflg & F_REPEAT)) donefds(); }
/*ARGSUSED*/ void dosetpath(Char **arglist, struct command *c) { extern char *getenv(); Char **pathvars, **cmdargs; char **spaths, **cpaths, **cmds; char *tcp; unsigned int npaths, ncmds; int i, sysflag; pintr_disabled++; cleanup_push(&pintr_disabled, disabled_cleanup); /* * setpath(3) uses stdio and we want 0, 1, 2 to work... */ if (!didfds) { (void) dcopy(SHIN, 0); (void) dcopy(SHOUT, 1); (void) dcopy(SHDIAG, 2); didfds = 1; } for (i = 1; arglist[i] && (arglist[i][0] != '-'); i++); npaths = i - 1; cmdargs = &arglist[i]; for (; arglist[i]; i++); ncmds = i - npaths - 1; if (npaths) { sysflag = 0; pathvars = &arglist[1]; } else { sysflag = 1; npaths = (sizeof syspaths / sizeof *syspaths) - 1; pathvars = syspaths; } /* note that npaths != 0 */ spaths = xmalloc(npaths * sizeof *spaths); setzero(spaths, npaths * sizeof *spaths); cpaths = xmalloc((npaths + 1) * sizeof *cpaths); setzero(cpaths, (npaths + 1) * sizeof *cpaths); cmds = xmalloc((ncmds + 1) * sizeof *cmds); setzero(cmds, (ncmds + 1) * sizeof *cmds); for (i = 0; i < npaths; i++) { char *val = getenv(short2str(pathvars[i])); if (val == NULL) val = ""; spaths[i] = xmalloc((Strlen(pathvars[i]) + strlen(val) + 2) * sizeof **spaths); (void) strcpy(spaths[i], short2str(pathvars[i])); (void) strcat(spaths[i], "="); (void) strcat(spaths[i], val); cpaths[i] = spaths[i]; } for (i = 0; i < ncmds; i++) { Char *val = globone(cmdargs[i], G_ERROR);/*FIXRESET*/ if (val == NULL) goto abortpath; cmds[i] = strsave(short2str(val)); } if (setpath(cpaths, cmds, LOCALSYSPATH, sysflag, 1) < 0) { abortpath: if (spaths) { for (i = 0; i < npaths; i++) xfree(spaths[i]); xfree(spaths); } xfree(cpaths); if (cmds) { for (i = 0; i < ncmds; i++) xfree(cmds[i]); xfree(cmds); } cleanup_until(&pintr_disabled); donefds(); return; } for (i = 0; i < npaths; i++) { Char *val, *name; name = str2short(cpaths[i]); for (val = str2short(cpaths[i]); val && *val && *val != '='; val++); if (val && *val == '=') { *val++ = '\0'; tsetenv(name, val);/*FIXRESET*/ if (Strcmp(name, STRKPATH) == 0) { importpath(val);/*FIXRESET*/ if (havhash) dohash(NULL, NULL);/*FIXRESET*/ } *--val = '='; } } cleanup_until(&pintr_disabled); donefds(); }
void getmachine (void) { char temp[256]; char *vendor, *ostype; OSVERSIONINFO osver; SYSTEM_INFO sysinfo; memset(&osver,0,sizeof(osver)); memset(&sysinfo,0,sizeof(sysinfo)); vendor = "Microsoft"; tsetenv(STRVENDOR,str2short(vendor)); osver.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); if (!GetVersionEx(&osver)) { MessageBox(NULL,"GetVersionEx failed in getmachine", "tcsh",MB_ICONHAND); ExitProcess(0xFF); } GetSystemInfo(&sysinfo); if(osver.dwPlatformId == VER_PLATFORM_WIN32_NT) { char *ostr; switch(osver.dwMajorVersion) { case 5: switch (osver.dwMinorVersion) { case 0: ostype = "Windows2000"; ostr = "Windows 2000"; break; case 1: ostype = "WindowsXP"; ostr = "Windows XP"; break; case 2: ostype = "WindowsServer2003"; ostr = "Windows Server 2003"; break; default: ostype = "Windows-Post-2000"; ostr = "Windows Post Windows-2000"; } break; default: ostype = "WindowsNT"; ostr = "Windows NT"; } wsprintf(temp,"%s %d.%d Build %d (%s)", ostr, osver.dwMajorVersion,osver.dwMinorVersion, osver.dwBuildNumber, osver.szCSDVersion[0]?osver.szCSDVersion:""); tsetenv(STRHOSTTYPE,str2short(temp)); } else if (osver.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS) { ostype = "Windows9x"; wsprintf(temp,"Win9x %d.%d:%d",osver.dwMajorVersion,osver.dwMinorVersion, LOWORD(osver.dwBuildNumber)); tsetenv(STRHOSTTYPE,str2short(temp)); } else { MessageBox(NULL,"Unknown platform","tcsh",MB_ICONHAND); } tsetenv(STROSTYPE,str2short(ostype)); switch (sysinfo.wProcessorArchitecture) { case PROCESSOR_ARCHITECTURE_INTEL: if ( ( sysinfo.wProcessorLevel < 3) || ( sysinfo.wProcessorLevel > 9) ) sysinfo.wProcessorLevel = 3; wsprintf(temp,"i%d86",sysinfo.wProcessorLevel); break; case PROCESSOR_ARCHITECTURE_ALPHA: wsprintf(temp,"Alpha"); break; case PROCESSOR_ARCHITECTURE_MIPS: wsprintf(temp,"Mips"); break; case PROCESSOR_ARCHITECTURE_PPC: wsprintf(temp,"PPC"); break; default: wsprintf(temp,"Unknown"); break; } tsetenv(STRMACHTYPE,str2short(temp)); }