static int
herein(struct ioword *iop, char **resbuf)
{
int fd = -1;
struct shf *shf;
struct temp *h;
int i;
/* ksh -c 'cat << EOF' can cause this... */
if (iop->heredoc == NULL) {
warningf(true, "%s missing", "here document");
/* special to iosetup(): don't print error */
return (-2);
}
/* lexer substitution flags */
i = (iop->flag & IOEVAL) ? (ONEWORD | HEREDOC) : 0;
/* skip all the fd setup if we just want the value */
if (resbuf != NULL)
return (hereinval(iop->heredoc, i, resbuf, NULL));
/*
* Create temp file to hold content (done before newenv
* so temp doesn't get removed too soon).
*/
h = maketemp(ATEMP, TT_HEREDOC_EXP, &e->temps);
if (!(shf = h->shf) || (fd = open(h->tffn, O_RDONLY, 0)) < 0) {
i = errno;
warningf(true, "can't %s temporary file %s: %s",
!shf ? "create" : "open", h->tffn, cstrerror(i));
if (shf)
shf_close(shf);
/* special to iosetup(): don't print error */
return (-2);
}
if (hereinval(iop->heredoc, i, NULL, shf) == -2) {
close(fd);
/* special to iosetup(): don't print error */
return (-2);
}
if (shf_close(shf) == EOF) {
i = errno;
close(fd);
warningf(true, "can't %s temporary file %s: %s",
"write", h->tffn, cstrerror(i));
/* special to iosetup(): don't print error */
return (-2);
}
return (fd);
}
void
kshdebug_init_(void)
{
if (kshdebug_shf)
shf_close(kshdebug_shf);
kshdebug_shf = shf_open("/tmp/ksh-debug.log",
O_WRONLY|O_APPEND|O_CREAT, 0600, SHF_WR|SHF_MAPHI);
if (kshdebug_shf) {
shf_fprintf(kshdebug_shf, "\nNew shell[pid %d]\n", getpid());
shf_flush(kshdebug_shf);
}
}
void
quitenv(struct shf *shf)
{
struct env *ep = e;
char *cp;
int fd;
yyrecursive_pop(true);
while (ep->oenv && ep->oenv->loc != ep->loc)
popblock();
if (ep->savefd != NULL) {
for (fd = 0; fd < NUFILE; fd++)
/* if ep->savefd[fd] < 0, means fd was closed */
if (ep->savefd[fd])
restfd(fd, ep->savefd[fd]);
if (ep->savefd[2])
/* Clear any write errors */
shf_reopen(2, SHF_WR, shl_out);
}
/*
* Bottom of the stack.
* Either main shell is exiting or cleanup_parents_env() was called.
*/
if (ep->oenv == NULL) {
#ifdef DEBUG_LEAKS
int i;
#endif
if (ep->type == E_NONE) {
/* Main shell exiting? */
#if HAVE_PERSISTENT_HISTORY
if (Flag(FTALKING))
hist_finish();
#endif
j_exit();
if (ep->flags & EF_FAKE_SIGDIE) {
int sig = (exstat & 0xFF) - 128;
/*
* ham up our death a bit (AT&T ksh
* only seems to do this for SIGTERM)
* Don't do it for SIGQUIT, since we'd
* dump a core..
*/
if ((sig == SIGINT || sig == SIGTERM) &&
(kshpgrp == kshpid)) {
setsig(&sigtraps[sig], SIG_DFL,
SS_RESTORE_CURR | SS_FORCE);
kill(0, sig);
}
}
}
if (shf)
shf_close(shf);
reclaim();
#ifdef DEBUG_LEAKS
#ifndef MKSH_NO_CMDLINE_EDITING
x_done();
#endif
#ifndef MKSH_NOPROSPECTOFWORK
/* block at least SIGCHLD during/after afreeall */
sigprocmask(SIG_BLOCK, &sm_sigchld, NULL);
#endif
afreeall(APERM);
for (fd = 3; fd < NUFILE; fd++)
if ((i = fcntl(fd, F_GETFD, 0)) != -1 &&
(i & FD_CLOEXEC))
close(fd);
close(2);
close(1);
close(0);
#endif
exit(exstat & 0xFF);
}
if (shf)
shf_close(shf);
reclaim();
e = e->oenv;
/* free the struct env - tricky due to the ALLOC_ITEM inside */
cp = (void *)ep;
afree(cp + sizeof(ALLOC_ITEM), ATEMP);
}