static int grab_entry(const char *const tn, TERMTYPE *const tp)
/* return 1 if entry found, 0 if not found, -1 if database not accessible */
{
char filename[PATH_MAX];
int status;
int _nc_read_bsd_terminfo_entry(const char *, TERMTYPE *); /* XXX */
#ifdef __OpenBSD__
if ((status = _nc_read_bsd_terminfo_entry(tn, tp)) == 1)
return(1);
#endif /* __OpenBSD__ */
if ((status = _nc_read_entry(tn, filename, tp)) == 1)
return(1);
#ifndef PURE_TERMINFO
/*
* Try falling back on the termcap file. Note: allowing this call
* links the entire terminfo/termcap compiler into the startup code.
* It's preferable to build a real terminfo database and use that.
*/
status = _nc_read_termcap_entry(tn, tp);
#endif /* PURE_TERMINFO */
return(status);
}
static int
grab_entry(const char *const tn, TERMTYPE *const tp)
/* return 1 if entry found, 0 if not found, -1 if database not accessible */
{
#if USE_DATABASE
char filename[PATH_MAX];
#endif
int status;
/*
* $TERM shouldn't contain pathname delimiters.
*/
if (strchr(tn, '/'))
return 0;
#if USE_DATABASE
if ((status = _nc_read_entry(tn, filename, tp)) != 1) {
#if !PURE_TERMINFO
/*
* Try falling back on the termcap file.
* Note: allowing this call links the entire terminfo/termcap
* compiler into the startup code. It's preferable to build a
* real terminfo database and use that.
*/
status = _nc_read_termcap_entry(tn, tp);
#endif /* PURE_TERMINFO */
}
#else
status = _nc_read_termcap_entry(tn, tp);
#endif
/*
* If we have an entry, force all of the cancelled strings to null
* pointers so we don't have to test them in the rest of the library.
* (The terminfo compiler bypasses this logic, since it must know if
* a string is cancelled, for merging entries).
*/
if (status == 1) {
unsigned n;
for_each_boolean(n, tp) {
if (!VALID_BOOLEAN(tp->Booleans[n]))
tp->Booleans[n] = FALSE;
}
for_each_string(n, tp) {
if (tp->Strings[n] == CANCELLED_STRING)
tp->Strings[n] = ABSENT_STRING;
}
}
_nc_resolve_uses2(bool fullresolve, bool literal)
/* try to resolve all use capabilities */
{
ENTRY *qp, *rp, *lastread = 0;
bool keepgoing;
unsigned i;
int unresolved, total_unresolved, multiples;
DEBUG(2, ("RESOLUTION BEGINNING"));
/*
* Check for multiple occurrences of the same name.
*/
multiples = 0;
for_entry_list(qp) {
int matchcount = 0;
for_entry_list(rp) {
if (qp > rp
&& _nc_entry_match(qp->tterm.term_names, rp->tterm.term_names)) {
matchcount++;
if (matchcount == 1) {
(void) fprintf(stderr, "Name collision between %s",
_nc_first_name(qp->tterm.term_names));
multiples++;
}
if (matchcount >= 1)
(void) fprintf(stderr, " %s", _nc_first_name(rp->tterm.term_names));
}
}
if (matchcount >= 1)
(void) putc('\n', stderr);
}
if (multiples > 0)
return (FALSE);
DEBUG(2, ("NO MULTIPLE NAME OCCURRENCES"));
/*
* First resolution stage: compute link pointers corresponding to names.
*/
total_unresolved = 0;
_nc_curr_col = -1;
for_entry_list(qp) {
unresolved = 0;
for (i = 0; i < qp->nuses; i++) {
bool foundit;
char *child = _nc_first_name(qp->tterm.term_names);
char *lookfor = qp->uses[i].name;
long lookline = qp->uses[i].line;
foundit = FALSE;
_nc_set_type(child);
/* first, try to resolve from in-core records */
for_entry_list(rp) {
if (rp != qp
&& _nc_name_match(rp->tterm.term_names, lookfor, "|")) {
DEBUG(2, ("%s: resolving use=%s (in core)",
child, lookfor));
qp->uses[i].link = rp;
foundit = TRUE;
}
}
/* if that didn't work, try to merge in a compiled entry */
if (!foundit) {
TERMTYPE thisterm;
char filename[PATH_MAX];
memset(&thisterm, 0, sizeof(thisterm));
if (_nc_read_entry(lookfor, filename, &thisterm) == 1) {
DEBUG(2, ("%s: resolving use=%s (compiled)",
child, lookfor));
rp = typeMalloc(ENTRY, 1);
if (rp == 0)
_nc_err_abort(MSG_NO_MEMORY);
rp->tterm = thisterm;
rp->nuses = 0;
rp->next = lastread;
lastread = rp;
qp->uses[i].link = rp;
foundit = TRUE;
}
}
/* no good, mark this one unresolvable and complain */
if (!foundit) {
unresolved++;
total_unresolved++;
_nc_curr_line = lookline;
_nc_warning("resolution of use=%s failed", lookfor);
qp->uses[i].link = 0;
}
}
}
if (total_unresolved) {
/* free entries read in off disk */
_nc_free_entries(lastread);
return (FALSE);
}
DEBUG(2, ("NAME RESOLUTION COMPLETED OK"));
/*
* OK, at this point all (char *) references in `name' members
* have been successfully converted to (ENTRY *) pointers in
* `link' members. Time to do the actual merges.
*/
if (fullresolve) {
do {
TERMTYPE merged;
keepgoing = FALSE;
for_entry_list(qp) {
if (qp->nuses > 0) {
DEBUG(2, ("%s: attempting merge",
_nc_first_name(qp->tterm.term_names)));
/*
* If any of the use entries we're looking for is
* incomplete, punt. We'll catch this entry on a
* subsequent pass.
*/
for (i = 0; i < qp->nuses; i++)
if (qp->uses[i].link->nuses) {
DEBUG(2, ("%s: use entry %d unresolved",
_nc_first_name(qp->tterm.term_names), i));
goto incomplete;
}
/*
* First, make sure there is no garbage in the
* merge block. As a side effect, copy into
* the merged entry the name field and string
* table pointer.
*/
_nc_copy_termtype(&merged, &(qp->tterm));
/*
* Now merge in each use entry in the proper
* (reverse) order.
*/
for (; qp->nuses; qp->nuses--)
_nc_merge_entry(&merged,
&qp->uses[qp->nuses - 1].link->tterm);
/*
* Now merge in the original entry.
*/
_nc_merge_entry(&merged, &qp->tterm);
/*
* Replace the original entry with the merged one.
*/
FreeIfNeeded(qp->tterm.Booleans);
FreeIfNeeded(qp->tterm.Numbers);
FreeIfNeeded(qp->tterm.Strings);
#if NCURSES_XNAMES
FreeIfNeeded(qp->tterm.ext_Names);
#endif
qp->tterm = merged;
_nc_wrap_entry(qp, TRUE);
/*
* We know every entry is resolvable because name resolution
* didn't bomb. So go back for another pass.
*/
/* FALLTHRU */
incomplete:
keepgoing = TRUE;
}
}
} while
(keepgoing);
DEBUG(2, ("MERGES COMPLETED OK"));
}
/*
* We'd like to free entries read in off disk at this point, but can't.
* The merge_entry() code doesn't copy the strings in the use entries,
* it just aliases them. If this ever changes, do a
* free_entries(lastread) here.
*/
DEBUG(2, ("RESOLUTION FINISHED"));
if (fullresolve)
if (_nc_check_termtype != 0) {
_nc_curr_col = -1;
for_entry_list(qp) {
_nc_curr_line = qp->startline;
_nc_set_type(_nc_first_name(qp->tterm.term_names));
_nc_check_termtype2(&qp->tterm, literal);
}
DEBUG(2, ("SANITY CHECK FINISHED"));
}
/*
** curses_setup(exec_name)
**
** Startup ncurses
*/
void
curses_setup(
char *exec_name)
{
int status;
static TERMTYPE term;
char tty_filename[2048];
tty_init();
/**
See if the terminal is in the terminfo data base. This call has
two useful benefits, 1) it returns the filename of the terminfo entry,
and 2) it searches only terminfo's. This allows us to abort before
ncurses starts scanning the termcap file.
**/
if ((status = _nc_read_entry(tty_basename, tty_filename, &term)) == 0) {
const TERMTYPE *fallback = _nc_fallback(tty_basename);
if (fallback) {
term = *fallback;
sprintf(tty_filename, "(fallback)%s", tty_basename);
status = 1;
} else {
fprintf(stderr, "Terminal not found: TERM=%s\n", tty_basename);
show_usage(exec_name);
exit(1);
}
}
if (status == -1) {
fprintf(stderr, "Terminfo database is inaccessible\n");
exit(1);
}
/**
This call will load the terminfo data base and set the cur-term
variable. Only terminals that actually exist will get here so its
OK to ignore errors. This is a good thing since ncurses does not
permit (os) or (gn) to be set.
**/
setupterm(tty_basename, 1, &status);
/**
Get the current terminal definitions. This must be done before
getting the baudrate.
**/
_nc_get_curterm(&cur_term->Nttyb);
tty_baud_rate = baudrate();
tty_cps = (tty_baud_rate << 1) / tty_frame_size;
/* set up the defaults */
replace_mode = TRUE;
scan_mode = 0;
char_count = 0;
select_delay_type = debug_level = 0;
char_mask = (meta_on && meta_on[0] == '\0') ? ALLOW_PARITY : STRIP_PARITY;
/* Don't change the XON/XOFF modes yet. */
select_xon_xoff = initial_stty_query(TTY_XON_XOFF) ? 1 : needs_xon_xoff;
fflush(stdout); /* flush any output */
tty_set();
go_home(); /* set can_go_home */
put_clear(); /* set can_clear_screen */
if (send_reset_init) {
reset_init();
}
/*
I assume that the reset and init strings may not have the correct
pads. (Because that part of the test comes much later.) Because
of this, I allow the terminal some time to catch up.
*/
fflush(stdout); /* waste some time */
sleep(1); /* waste more time */
charset_can_test();
can_test("lines cols cr nxon rf if iprog rmp smcup rmcup", FLAG_CAN_TEST);
edit_init(); /* initialize the edit data base */
if (send_reset_init && enter_ca_mode) {
tc_putp(enter_ca_mode);
put_clear(); /* just in case we switched pages */
}
put_crlf();
ptext("Using terminfo from: ");
ptextln(tty_filename);
put_crlf();
if (tty_can_sync == SYNC_NEEDED) {
verify_time();
}
display_basic();
}
