static void
test_multiply_dollar_5x3x3() {
Expression *five = dollar( 5 );
Expression *product = multiply( multiply( five, 3 ), 3 );
Expression *fortyfive = dollar( 45 );
assert_true( equal( reduce( product, USD ), money_from( fortyfive ) ) );
free( five );
free( product );
free( fortyfive );
}
static void
test_multiply_dollar_5x3() {
Money *five = dollar( 5 );
Money *product = multiply( five, 3 );
Money *fifteen = dollar( 15 );
assert_true( equal( product, fifteen ) );
free( five );
free( product );
free( fifteen );
}
static void
test_multiply_dollar_5x2() {
Expression *five = dollar( 5 );
Expression *product = multiply( five, 2 );
Expression *ten = dollar( 10 );
assert_true( equal( reduce( product, USD ), money_from( ten ) ) );
free( five );
free( product );
free( ten );
}
static void
test_multiply_dollar_5x2() {
Money *five = dollar( 5 );
Money *product = multiply( five, 2 );
Money *ten = dollar( 10 );
assert_true( equal( product, ten ) );
free( five );
free( product );
free( ten );
}
static void
test_plus_returns_sum() {
Expression *five = dollar( 5 );
Expression *addend_five = dollar( 5 );
Expression *result = plus( five, addend_five );
Sum *sum = ( Sum * ) result->value;
assert_true( equal( money_from( five ), money_from( sum->augend ) ) );
assert_true( equal( money_from( addend_five ), money_from( sum->addend ) ) );
free_expression( five );
free_expression( addend_five );
free_expression( result );
delete_all_rates();
}
static void
test_multiply_dollar_5x2() {
Expression *five = dollar( 5 );
Expression *product = multiply( five, 2 );
Expression *ten = dollar( 10 );
Money *reduced = reduce( product, USD );
assert_true( equal( reduced, money_from( ten ) ) );
free_expression( five );
free_expression( product );
free_expression( ten );
free_money( reduced );
delete_all_rates();
}
static void
test_simple_addition() {
Expression *five = dollar( 5 );
Expression *addend_five = dollar( 5 );
Expression *ten = dollar( 10 );
Expression *sum = plus( five, addend_five );
Money *reduced = reduce( sum, USD );
assert_true( equal( money_from( ten ), reduced ) );
free( five );
free( addend_five );
free( sum );
free( reduced );
free( ten );
}
static void
test_equal() {
Money *five_dollar1 = money_from( dollar( 5 ) );
Money *five_dollar2 = money_from( dollar( 5 ) );
Money *six_dollar = money_from( dollar( 6 ) );
Money *five_franc = money_from( franc( 5 ) );
assert_true( equal( five_dollar1, five_dollar2 ) );
assert_false( equal( five_dollar1, six_dollar ) );
assert_false( equal( five_dollar1, five_franc ) );
free( five_dollar1 );
free( five_dollar2 );
free( six_dollar );
free( five_franc );
}
template <typename Container> inline std::size_t
find_replaces(std::string const &value, Container &cont) {
std::size_t max = 0;
cont.clear();
is_equal<char> dollar('$');
is_numeric<char> numeric_matcher;
std::string::const_iterator i = value.begin(), begin = value.begin(), end = value.end();
while (i != end) {
i = next_matched(i, end, dollar);
if (i == end) {
break;
}
std::string::const_iterator pos = next_not_matched(i + 1, end, numeric_matcher);
if (std::distance(i, pos) > 1) {
regex_data data = { i - begin, pos - begin, scan_integer<std::size_t>(i + 1, pos) };
cont.push_back(data);
std::string tmp(value.substr(i + 1 - begin, pos - i - 1));
std::size_t s = atoi(tmp.c_str());
max = std::max(max, s);
}
i = pos;
}
return max;
}
//PROGRAMA PRINCIPAL CD
void
ChangeDirectory(Comando* comando){
char* path;
int error;
char buf[1024];
char dir[1024];
if(comando->arg[1]!=NULL){
if(dollar(comando->arg[1][0])){
path=ConvertDollarVar(comando->arg[1]);
if(path!=NULL){
fprintf(stderr, "Error: cant change directory %s\n", path);
}
}
if(comando->arg[1][0]!='/'){
getcwd(buf, sizeof(buf));
sprintf(dir, "%s/%s", buf, comando->arg[1]);
error=change_directory(dir);
if(error){
fprintf(stderr, "Error: cant change directory %s\n", dir);
}
}else{
error=change_directory(comando->arg[1]);
if(error){
fprintf(stderr, "Error: cant change directory %s\n", dir);
}
}
}else{
path=getEnv("HOME");
error=change_directory(path);
if(error){
fprintf(stderr, "Error: cant change directory %s\n", path);
}
}
}
int check_cmd(t_shell *sh, t_node *tree)
{
int i;
i = -1;
number_reset(sh);
sh->cmd = my_str_to_wordtab(tree->str);
dollar(sh);
check_point_slash(sh, sh->env);
if (built_in(sh) == -1)
return (-1);
while (sh->path != NULL && sh->path[++i] != NULL && sh->ch == 0)
if (access(strcat(sh->path[i], sh->cmd[0]), X_OK) == 0)
exec_cmd(sh->path[i], sh->cmd, sh->env, sh);
if (sh->ch == 0)
exec_slah_bin(sh->cmd, sh);
if (sh->ch == 0)
{
fprintf(stderr, "Error: '%s' command not found\n", sh->cmd[0]);
sh->ok_cmd = -1;
return (0);
}
my_free(sh->cmd);
return (0);
}
static void
test_reduce_sum() {
Expression *three_usd = dollar( 3 );
Expression *four_usd = dollar( 4 );
Expression *seven_usd = dollar( 7 );
Expression *exp = plus( three_usd, four_usd );
Money *result = reduce( exp , USD );
assert_true( equal( result , money_from( seven_usd ) ) );
free_expression( three_usd );
free_expression( four_usd );
free_expression( seven_usd );
free_expression( exp );
free_money( result );
delete_all_rates();
}
static void
test_multiply_dollar_5x3x3() {
Expression *five = dollar( 5 );
Expression *product1 = multiply( five, 3 );
Expression *product2 = multiply( product1, 3 );
Expression *fortyfive = dollar( 45 );
Money *reduced = reduce( product2, USD );
assert_true( equal( reduced, money_from( fortyfive ) ) );
free_expression( five );
free_expression( product1 );
free_expression( product2 );
free_expression( fortyfive );
free_money( reduced );
delete_all_rates();
}
static void
test_equal() {
Expression *five_dollar1 = dollar( 5 );
Expression *five_dollar2 = dollar( 5 );
Expression *six_dollar = dollar( 6 );
Expression *five_franc = franc( 5 );
assert_true( equal( money_from( five_dollar1 ), money_from( five_dollar2 ) ) );
assert_false( equal( money_from( five_dollar1 ), money_from( six_dollar ) ) );
assert_false( equal( money_from( five_dollar1 ), money_from( five_franc ) ) );
free_expression( five_dollar1 );
free_expression( five_dollar2 );
free_expression( six_dollar );
free_expression( five_franc );
delete_all_rates();
}
static void
test_mixed_addition() {
Expression *five_bucks = dollar( 5 );
Expression *ten_francs = franc( 10 );
Expression *ten_usd = dollar( 10 );
add_rate( CHF, USD, 2 );
Expression *exp = plus( five_bucks, ten_francs );
Money *result = reduce( exp, USD );
assert_true( equal( money_from( ten_usd ), result ) );
free_expression( five_bucks );
free_expression( ten_francs );
free_expression( ten_usd );
free_expression( exp );
free_money( result );
delete_all_rates();
}
static void
test_multiple_addition() {
Expression *five_bucks = dollar( 5 );
Expression *ten_francs = franc( 10 );
Expression *fifteen_bucks = dollar( 15 );
add_rate( CHF, USD, 2 );
Expression *exp1 = plus( five_bucks, ten_francs );
Expression *exp2 = plus( exp1, five_bucks );
Money *result = reduce( exp2, USD );
assert_true( equal( money_from( fifteen_bucks ), result ) );
free_expression( five_bucks );
free_expression( ten_francs );
free_expression( fifteen_bucks );
free_expression( exp1 );
free_expression( exp2 );
free_money( result );
delete_all_rates();
}
static void
test_reduce_different_currency() {
Expression *two_franc = franc( 2 );
Expression *one_dollar = dollar( 1 );
add_rate( CHF, USD, 2 );
Money *result = reduce( two_franc, USD );
assert_true( equal( result, money_from( one_dollar ) ) );
free_expression( two_franc );
free_expression( one_dollar );
free_money( result );
delete_all_rates();
}
/* expand one blank-terminated string, processing quotes and $ signs */
char*
expand(Exec *e, char *s, char **ends)
{
char *p, *ep, *val;
int namelen, quoting;
p = ebuf;
ep = ebuf+sizeof ebuf-1;
quoting = 0;
while(p<ep && *s!='\0' && (quoting || (*s!=' ' && *s!='\t'))){
if(*s == '\''){
s++;
if(!quoting)
quoting = 1;
else if(*s == '\''){
*p++ = '\'';
s++;
}else
quoting = 0;
continue;
}
if(quoting || *s!='$'){
*p++ = *s++;
continue;
}
s++;
val = dollar(e, s, &namelen);
if(val == nil){
*p++ = '$';
continue;
}
if(ep-p < strlen(val))
return "string-too-long";
strcpy(p, val);
p += strlen(val);
s += namelen;
}
if(ends)
*ends = s;
*p = '\0';
/* disabled due to default plumbing having broken rule */
if(0 && quoting)
return "eof-in-quoted-string";
return ebuf;
}
static void
test_currency() {
assert_int_equal( USD, currency_of( dollar( 1 ) ) );
assert_int_equal( CHF, currency_of( franc( 1 ) ) );
}
void
cmd(void)
{
char *p, *a, *cp, *gotint;
char addr[128];
static char *cmdlet = ":$?/=>";
int n, i;
notify(catcher);
dot = reg.pc;
setjmp(errjmp);
for(;;) {
Bflush(bioout);
p = buf;
n = 0;
for(;;) {
i = Bgetc(bin);
if(i < 0)
exits(0);
*p++ = i;
n++;
if(i == '\n')
break;
}
if(buf[0] == '\n')
strcpy(buf, lastcmd);
else {
buf[n-1] = '\0';
strcpy(lastcmd, buf);
}
p = buf;
a = addr;
for(;;) {
p = nextc(p);
if(*p == 0 || strchr(cmdlet, *p))
break;
*a++ = *p++;
}
*a = '\0';
cmdcount = 1;
cp = strchr(addr, ',');
if(cp != 0) {
if(cp[1] == '#')
cmdcount = strtoul(cp+2, &gotint, 16);
else
cmdcount = strtoul(cp+1, &gotint, 0);
*cp = '\0';
}
switch(*p) {
case '$':
dollar(p+1);
break;
case ':':
colon(addr, p+1);
break;
case '/':
case '?':
dot = expr(addr);
for(i = 0; i < cmdcount; i++)
quesie(p+1);
break;
case '=':
eval(addr, p+1);
break;
case '>':
setreg(addr, p+1);
break;
default:
Bprint(bioout, "?\n");
break;
}
}
}
/*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();
}
