#include <curses.priv.h>
#include <tic.h>
#include <term_entry.h>
#if SVR4_TERMIO && !defined(_POSIX_SOURCE)
#define _POSIX_SOURCE
#endif
#if HAVE_LOCALE_H
#include <locale.h>
#endif
#include <term.h>
MODULE_ID("$Id: lib_setup.c,v 1.111 2008/08/03 22:42:33 tom Exp $")
#if HAVE_SIZECHANGE
# if !defined(sun) || !TERMIOS
# if HAVE_SYS_IOCTL_H
# include <sys/ioctl.h>
# endif
# endif
#endif
#if NEED_PTEM_H
# include <sys/stream.h>
# include <sys/ptem.h>
#endif
#if HAVE_LANGINFO_CODESET
#include <langinfo.h>
#endif
#ifdef TIOCGSIZE
# define IOCTL_WINSIZE TIOCGSIZE
# define STRUCT_WINSIZE struct ttysize
# define WINSIZE_ROWS(n) (int)n.ts_lines
# define WINSIZE_COLS(n) (int)n.ts_cols
#else
# ifdef TIOCGWINSZ
# define IOCTL_WINSIZE TIOCGWINSZ
# define STRUCT_WINSIZE struct winsize
# define WINSIZE_ROWS(n) (int)n.ws_row
# define WINSIZE_COLS(n) (int)n.ws_col
# endif
#endif
#undef CUR
#define CUR termp->type.
#if USE_REENTRANT
NCURSES_EXPORT(char *)
NCURSES_PUBLIC_VAR(ttytype) (void)
{
static char empty[] = "";
return cur_term ? cur_term->type.term_names : empty;
}
NCURSES_EXPORT(int *)
_nc_ptr_Lines(void)
{
return ptrLines();
}
NCURSES_EXPORT(int)
NCURSES_PUBLIC_VAR(LINES) (void)
{
return *_nc_ptr_Lines();
}
NCURSES_EXPORT(int *)
_nc_ptr_Cols(void)
{
return ptrCols();
}
NCURSES_EXPORT(int)
NCURSES_PUBLIC_VAR(COLS) (void)
{
return *_nc_ptr_Cols();
}
NCURSES_EXPORT(int)
NCURSES_PUBLIC_VAR(TABSIZE) (void)
{
return SP ? SP->_TABSIZE : 8;
}
#else
NCURSES_EXPORT_VAR(char) ttytype[NAMESIZE] = "";
NCURSES_EXPORT_VAR(int) LINES = 0;
NCURSES_EXPORT_VAR(int) COLS = 0;
NCURSES_EXPORT_VAR(int) TABSIZE = 0;
#endif
#if NCURSES_EXT_FUNCS
NCURSES_EXPORT(int)
set_tabsize(int value)
{
int code = OK;
#if USE_REENTRANT
if (SP) {
SP->_TABSIZE = value;
} else {
code = ERR;
}
#else
TABSIZE = value;
#endif
return code;
}
#endif
#if USE_SIGWINCH
NCURSES_EXPORT(int)
_nc_handle_sigwinch(SCREEN *sp)
{
SCREEN *scan;
if (_nc_globals.have_sigwinch) {
_nc_globals.have_sigwinch = 0;
for (each_screen(scan)) {
scan->_sig_winch = TRUE;
}
}
return (sp ? sp->_sig_winch : 0);
}
#endif
NCURSES_EXPORT(void)
use_env(bool f)
{
T((T_CALLED("use_env()")));
_nc_prescreen.use_env = f;
returnVoid;
}
NCURSES_EXPORT(void)
_nc_get_screensize(SCREEN *sp, int *linep, int *colp)
{
TERMINAL *termp = cur_term;
int my_tabsize;
T(("screen size: terminfo lines = %d columns = %d", lines, columns));
if (!_nc_prescreen.use_env) {
*linep = (int) lines;
*colp = (int) columns;
} else {
int value;
*linep = *colp = 0;
if ((value = _nc_getenv_num("LINES")) > 0) {
*linep = value;
}
if ((value = _nc_getenv_num("COLUMNS")) > 0) {
*colp = value;
}
T(("screen size: environment LINES = %d COLUMNS = %d", *linep, *colp));
#ifdef __EMX__
if (*linep <= 0 || *colp <= 0) {
int screendata[2];
_scrsize(screendata);
*colp = screendata[0];
*linep = screendata[1];
T(("EMX screen size: environment LINES = %d COLUMNS = %d",
*linep, *colp));
}
#endif
#if HAVE_SIZECHANGE
if (*linep <= 0 || *colp <= 0) {
if (isatty(cur_term->Filedes)) {
STRUCT_WINSIZE size;
errno = 0;
do {
if (ioctl(cur_term->Filedes, IOCTL_WINSIZE, &size) < 0
&& errno != EINTR)
goto failure;
} while
(errno == EINTR);
if (*linep <= 0)
*linep = (sp != 0 && sp->_filtered) ? 1 : WINSIZE_ROWS(size);
if (*colp <= 0)
*colp = WINSIZE_COLS(size);
}
failure:;
}
#endif
if (*linep <= 0) {
*linep = (int) lines;
}
if (*colp <= 0) {
*colp = (int) columns;
}
if (*linep <= 0) {
*linep = 24;
}
if (*colp <= 0) {
*colp = 80;
}
lines = (short) (*linep);
columns = (short) (*colp);
}
T(("screen size is %dx%d", *linep, *colp));
if (VALID_NUMERIC(init_tabs))
my_tabsize = (int) init_tabs;
else
my_tabsize = 8;
#if USE_REENTRANT
if (sp != 0)
sp->_TABSIZE = my_tabsize;
#else
TABSIZE = my_tabsize;
#endif
T(("TABSIZE = %d", TABSIZE));
}
#if USE_SIZECHANGE
NCURSES_EXPORT(void)
_nc_update_screensize(SCREEN *sp)
{
TERMINAL *termp = cur_term;
int old_lines = lines;
int new_lines;
int old_cols = columns;
int new_cols;
_nc_get_screensize(sp, &new_lines, &new_cols);
if (sp != 0
&& sp->_resize != 0) {
if ((new_lines != old_lines) || (new_cols != old_cols))
sp->_resize(new_lines, new_cols);
sp->_sig_winch = FALSE;
}
}
#endif
#define ret_error(code, fmt, arg) if (errret) {\
*errret = code;\
returnCode(ERR);\
} else {\
fprintf(stderr, fmt, arg);\
exit(EXIT_FAILURE);\
}
#define ret_error0(code, msg) if (errret) {\
*errret = code;\
returnCode(ERR);\
} else {\
fprintf(stderr, msg);\
exit(EXIT_FAILURE);\
}
#if USE_DATABASE || USE_TERMCAP
static int
grab_entry(const char *const tn, TERMTYPE *const tp)
{
char filename[PATH_MAX];
int status = _nc_read_entry(tn, filename, tp);
if (status == TGETENT_YES) {
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;
}
}
return (status);
}
#endif
static void
do_prototype(TERMINAL * termp)
{
unsigned i;
char CC;
char proto;
char *tmp;
if ((tmp = getenv("CC")) != 0) {
if ((CC = *tmp) != 0) {
proto = *command_character;
for_each_string(i, &(termp->type)) {
for (tmp = termp->type.Strings[i]; *tmp; tmp++) {
if (*tmp == proto)
*tmp = CC;
}
}
}
}
}
NCURSES_EXPORT(char *)
_nc_get_locale(void)
{
char *env;
#if HAVE_LOCALE_H
env = setlocale(LC_CTYPE, 0);
#else
if (((env = getenv("LC_ALL")) != 0 && *env != '\0')
|| ((env = getenv("LC_CTYPE")) != 0 && *env != '\0')
|| ((env = getenv("LANG")) != 0 && *env != '\0')) {
;
}
#endif
T(("_nc_get_locale %s", _nc_visbuf(env)));
return env;
}
NCURSES_EXPORT(int)
_nc_unicode_locale(void)
{
int result = 0;
#if HAVE_LANGINFO_CODESET
char *env = nl_langinfo(CODESET);
result = !strcmp(env, "UTF-8");
T(("_nc_unicode_locale(%s) ->%d", env, result));
#else
char *env = _nc_get_locale();
if (env != 0) {
if (strstr(env, ".UTF-8") != 0) {
result = 1;
T(("_nc_unicode_locale(%s) ->%d", env, result));
}
}
#endif
return result;
}
#define CONTROL_N(s) ((s) != 0 && strstr(s, "\016") != 0)
#define CONTROL_O(s) ((s) != 0 && strstr(s, "\017") != 0)
NCURSES_EXPORT(int)
_nc_locale_breaks_acs(TERMINAL * termp)
{
char *env;
if ((env = getenv("NCURSES_NO_UTF8_ACS")) != 0) {
return atoi(env);
} else if ((env = getenv("TERM")) != 0) {
if (strstr(env, "linux"))
return 1;
if (strstr(env, "screen") != 0
&& ((env = getenv("TERMCAP")) != 0
&& strstr(env, "screen") != 0)
&& strstr(env, "hhII00") != 0) {
if (CONTROL_N(enter_alt_charset_mode) ||
CONTROL_O(enter_alt_charset_mode) ||
CONTROL_N(set_attributes) ||
CONTROL_O(set_attributes))
return 1;
}
}
return 0;
}
NCURSES_EXPORT(int)
_nc_setupterm(NCURSES_CONST char *tname, int Filedes, int *errret, bool reuse)
{
TERMINAL *termp;
int status;
START_TRACE();
T((T_CALLED("setupterm(%s,%d,%p)"), _nc_visbuf(tname), Filedes, errret));
if (tname == 0) {
tname = getenv("TERM");
if (tname == 0 || *tname == '\0') {
ret_error0(TGETENT_ERR, "TERM environment variable not set.\n");
}
}
if (strlen(tname) > MAX_NAME_SIZE) {
ret_error(TGETENT_ERR,
"TERM environment must be <= %d characters.\n",
MAX_NAME_SIZE);
}
T(("your terminal name is %s", tname));
if (Filedes == STDOUT_FILENO && !isatty(Filedes))
Filedes = STDERR_FILENO;
if (reuse
&& (termp = cur_term) != 0
&& termp->Filedes == Filedes
&& termp->_termname != 0
&& !strcmp(termp->_termname, tname)
&& _nc_name_match(termp->type.term_names, tname, "|")) {
T(("reusing existing terminal information and mode-settings"));
} else {
termp = typeCalloc(TERMINAL, 1);
if (termp == 0) {
ret_error0(TGETENT_ERR,
"Not enough memory to create terminal structure.\n");
}
#if USE_DATABASE || USE_TERMCAP
status = grab_entry(tname, &termp->type);
#else
status = TGETENT_NO;
#endif
if (status != TGETENT_YES) {
const TERMTYPE *fallback = _nc_fallback(tname);
if (fallback) {
termp->type = *fallback;
status = TGETENT_YES;
}
}
if (status != TGETENT_YES) {
del_curterm(termp);
if (status == TGETENT_ERR) {
ret_error0(status, "terminals database is inaccessible\n");
} else if (status == TGETENT_NO) {
ret_error(status, "'%s': unknown terminal type.\n", tname);
}
}
#if !USE_REENTRANT
strncpy(ttytype, termp->type.term_names, NAMESIZE - 1);
ttytype[NAMESIZE - 1] = '\0';
#endif
termp->Filedes = Filedes;
termp->_termname = strdup(tname);
set_curterm(termp);
if (command_character && getenv("CC"))
do_prototype(termp);
if (isatty(Filedes)) {
def_prog_mode();
baudrate();
}
}
_nc_get_screensize(SP, ptrLines(), ptrCols());
if (errret)
*errret = TGETENT_YES;
if (generic_type) {
ret_error(TGETENT_NO, "'%s': I need something more specific.\n", tname);
}
if (hard_copy) {
ret_error(TGETENT_YES, "'%s': I can't handle hardcopy terminals.\n", tname);
}
returnCode(OK);
}
NCURSES_EXPORT(int)
setupterm(NCURSES_CONST char *tname, int Filedes, int *errret)
{
return _nc_setupterm(tname, Filedes, errret, FALSE);
}