/*
* Perform io redirection.
* We may or maynot be forked here.
*/
static void
doio(struct command *t, int *pipein, int *pipeout)
{
int fd;
Char *cp;
unsigned long flags = t->t_dflg;
if (didfds || (flags & F_REPEAT))
return;
if ((flags & F_READ) == 0) {/* F_READ already done */
if (t->t_dlef) {
char *tmp;
/*
* so < /dev/std{in,out,err} work
*/
(void) dcopy(SHIN, 0);
(void) dcopy(SHOUT, 1);
(void) dcopy(SHDIAG, 2);
cp = splicepipe(t, t->t_dlef);
tmp = strsave(short2str(cp));
xfree(cp);
cleanup_push(tmp, xfree);
if ((fd = xopen(tmp, O_RDONLY|O_LARGEFILE)) < 0)
stderror(ERR_SYSTEM, tmp, strerror(errno));
cleanup_until(tmp);
/* allow input files larger than 2Gb */
#ifndef WINNT_NATIVE
(void) fcntl(fd, F_SETFL, fcntl(fd, F_GETFL) | O_LARGEFILE);
#endif /*!WINNT_NATIVE*/
(void) dmove(fd, 0);
}
else if (flags & F_PIPEIN) {
xclose(0);
TCSH_IGNORE(dup(pipein[0]));
xclose(pipein[0]);
xclose(pipein[1]);
}
else if ((flags & F_NOINTERRUPT) && tpgrp == -1) {
xclose(0);
(void) xopen(_PATH_DEVNULL, O_RDONLY|O_LARGEFILE);
}
else {
xclose(0);
TCSH_IGNORE(dup(OLDSTD));
#if defined(CLOSE_ON_EXEC) && defined(CLEX_DUPS)
/*
* PWP: Unlike Bezerkeley 4.3, FIONCLEX for Pyramid is preserved
* across dup()s, so we have to UNSET it here or else we get a
* command with NO stdin, stdout, or stderr at all (a bad thing
* indeed)
*/
(void) close_on_exec(0, 0);
#endif /* CLOSE_ON_EXEC && CLEX_DUPS */
}
}
if (t->t_drit) {
char *tmp;
cp = splicepipe(t, t->t_drit);
tmp = strsave(short2str(cp));
xfree(cp);
cleanup_push(tmp, xfree);
/*
* so > /dev/std{out,err} work
*/
(void) dcopy(SHOUT, 1);
(void) dcopy(SHDIAG, 2);
if ((flags & F_APPEND) != 0) {
#ifdef O_APPEND
fd = xopen(tmp, O_WRONLY|O_APPEND|O_LARGEFILE);
#else /* !O_APPEND */
fd = xopen(tmp, O_WRONLY|O_LARGEFILE);
(void) lseek(fd, (off_t) 0, L_XTND);
#endif /* O_APPEND */
}
else
fd = 0;
if ((flags & F_APPEND) == 0 || fd == -1) {
if (!(flags & F_OVERWRITE) && adrof(STRnoclobber)) {
if (flags & F_APPEND)
stderror(ERR_SYSTEM, tmp, strerror(errno));
chkclob(tmp);
}
if ((fd = xcreat(tmp, 0666)) < 0)
stderror(ERR_SYSTEM, tmp, strerror(errno));
/* allow input files larger than 2Gb */
#ifndef WINNT_NATIVE
(void) fcntl(fd, F_SETFL, fcntl(fd, F_GETFL) | O_LARGEFILE);
#endif /*!WINNT_NATIVE*/
}
cleanup_until(tmp);
(void) dmove(fd, 1);
is1atty = isatty(1);
}
else if (flags & F_PIPEOUT) {
xclose(1);
TCSH_IGNORE(dup(pipeout[1]));
is1atty = 0;
}
else {
xclose(1);
TCSH_IGNORE(dup(SHOUT));
is1atty = isoutatty;
# if defined(CLOSE_ON_EXEC) && defined(CLEX_DUPS)
(void) close_on_exec(1, 0);
# endif /* CLOSE_ON_EXEC && CLEX_DUPS */
}
xclose(2);
if (flags & F_STDERR) {
TCSH_IGNORE(dup(1));
is2atty = is1atty;
}
else {
TCSH_IGNORE(dup(SHDIAG));
is2atty = isdiagatty;
# if defined(CLOSE_ON_EXEC) && defined(CLEX_DUPS)
(void) close_on_exec(2, 0);
# endif /* CLOSE_ON_EXEC && CLEX_DUPS */
}
didfds = 1;
}
/*
* Perform io redirection.
* We may or maynot be forked here.
*/
static void
doio(struct command *t, int *pipein, int *pipeout)
{
int fd;
Char *cp;
int flags = t->t_dflg;
if (didfds || (flags & F_REPEAT))
return;
if ((flags & F_READ) == 0) {/* F_READ already done */
if (t->t_dlef) {
char tmp[PATH_MAX];
/*
* so < /dev/std{in,out,err} work
*/
(void) dcopy(SHIN, 0);
(void) dcopy(SHOUT, 1);
(void) dcopy(SHERR, 2);
cp = splicepipe(t, t->t_dlef);
strlcpy(tmp, short2str(cp), sizeof tmp);
xfree(cp);
if ((fd = open(tmp, O_RDONLY)) < 0)
stderror(ERR_SYSTEM, tmp, strerror(errno));
(void) dmove(fd, 0);
}
else if (flags & F_PIPEIN) {
(void) close(0);
(void) dup(pipein[0]);
(void) close(pipein[0]);
(void) close(pipein[1]);
}
else if ((flags & F_NOINTERRUPT) && tpgrp == -1) {
(void) close(0);
(void) open(_PATH_DEVNULL, O_RDONLY);
}
else {
(void) close(0);
(void) dup(OLDSTD);
(void) ioctl(STDIN_FILENO, FIONCLEX, NULL);
}
}
if (t->t_drit) {
char tmp[PATH_MAX];
cp = splicepipe(t, t->t_drit);
strlcpy(tmp, short2str(cp), sizeof tmp);
xfree(cp);
/*
* so > /dev/std{out,err} work
*/
(void) dcopy(SHOUT, 1);
(void) dcopy(SHERR, 2);
if ((flags & F_APPEND) &&
(fd = open(tmp, O_WRONLY | O_APPEND)) >= 0);
else {
if (!(flags & F_OVERWRITE) && adrof(STRnoclobber)) {
if (flags & F_APPEND)
stderror(ERR_SYSTEM, tmp, strerror(errno));
chkclob(tmp);
}
if ((fd = open(tmp, O_WRONLY | O_CREAT | O_TRUNC, 0666)) < 0)
stderror(ERR_SYSTEM, tmp, strerror(errno));
}
(void) dmove(fd, 1);
}
else if (flags & F_PIPEOUT) {
(void) close(1);
(void) dup(pipeout[1]);
}
else {
(void) close(1);
(void) dup(SHOUT);
(void) ioctl(STDOUT_FILENO, FIONCLEX, NULL);
}
(void) close(2);
if (flags & F_STDERR) {
(void) dup(1);
}
else {
(void) dup(SHERR);
(void) ioctl(STDERR_FILENO, FIONCLEX, NULL);
}
didfds = 1;
}
