NCURSES_SP_NAME(tgetent) (NCURSES_SP_DCLx char *bufp, const char *name) { int rc = ERR; int n; bool found_cache = FALSE; #ifdef USE_TERM_DRIVER TERMINAL *termp = 0; #endif START_TRACE(); T((T_CALLED("tgetent()"))); TINFO_SETUP_TERM(&termp, (NCURSES_CONST char *) name, STDOUT_FILENO, &rc, TRUE); #ifdef USE_TERM_DRIVER if (termp == 0 || !((TERMINAL_CONTROL_BLOCK *) termp)->drv->isTerminfo) returnCode(rc); #endif /* * In general we cannot tell if the fixed sgr0 is still used by the * caller, but if tgetent() is called with the same buffer, that is * good enough, since the previous data would be invalidated by the * current call. * * bufp may be a null pointer, e.g., GNU termcap. That allocates data, * which is good until the next tgetent() call. The conventional termcap * is inconvenient because of the fixed buffer size, but because it uses * caller-supplied buffers, can have multiple terminal descriptions in * use at a given time. */ for (n = 0; n < TGETENT_MAX; ++n) { bool same_result = (MyCache[n].last_used && MyCache[n].last_bufp == bufp); if (same_result) { CacheInx = n; if (FIX_SGR0 != 0) { FreeAndNull(FIX_SGR0); } /* * Also free the terminfo data that we loaded (much bigger leak). */ if (LAST_TRM != 0 && LAST_TRM != TerminalOf(SP_PARM)) { TERMINAL *trm = LAST_TRM; NCURSES_SP_NAME(del_curterm) (NCURSES_SP_ARGx LAST_TRM); for (CacheInx = 0; CacheInx < TGETENT_MAX; ++CacheInx) if (LAST_TRM == trm) LAST_TRM = 0; CacheInx = n; } found_cache = TRUE; break; } } if (!found_cache) { int best = 0; for (CacheInx = 0; CacheInx < TGETENT_MAX; ++CacheInx) { if (LAST_SEQ < MyCache[best].sequence) { best = CacheInx; } } CacheInx = best; } if (rc == 1) { LAST_TRM = TerminalOf(SP_PARM); LAST_SEQ = ++CacheSeq; } else { LAST_TRM = 0; } PC = 0; UP = 0; BC = 0; FIX_SGR0 = 0; /* don't free it - application may still use */ if (rc == 1) { if (cursor_left) if ((backspaces_with_bs = (char) !strcmp(cursor_left, "\b")) == 0) backspace_if_not_bs = cursor_left; /* we're required to export these */ if (pad_char != NULL) PC = pad_char[0]; if (cursor_up != NULL) UP = cursor_up; if (backspace_if_not_bs != NULL) BC = backspace_if_not_bs; if ((FIX_SGR0 = _nc_trim_sgr0(&TerminalType(TerminalOf(SP_PARM)))) != 0) { if (!strcmp(FIX_SGR0, exit_attribute_mode)) { if (FIX_SGR0 != exit_attribute_mode) { free(FIX_SGR0); } FIX_SGR0 = 0; } } LAST_BUF = bufp; LAST_USE = TRUE; SetNoPadding(SP_PARM); (void) NCURSES_SP_NAME(baudrate) (NCURSES_SP_ARG); /* sets ospeed as a side-effect */ /* LINT_PREPRO #if 0*/ #include <capdefaults.c> /* LINT_PREPRO #endif*/ } returnCode(rc); }
NCURSES_SP_NAME(newterm) (NCURSES_SP_DCLx NCURSES_CONST char *name, FILE *ofp, FILE *ifp) { int value; int errret; SCREEN *result = 0; SCREEN *current; TERMINAL *its_term; FILE *_ofp = ofp ? ofp : stdout; FILE *_ifp = ifp ? ifp : stdin; int cols; int slk_format; int filter_mode; TERMINAL *new_term = 0; START_TRACE(); T((T_CALLED("newterm(%p, \"%s\", %p,%p)"), (void *) SP_PARM, name, (void *) ofp, (void *) ifp)); #if NCURSES_SP_FUNCS assert(SP_PARM != 0); if (SP_PARM == 0) returnSP(SP_PARM); #endif _nc_init_pthreads(); _nc_lock_global(curses); current = CURRENT_SCREEN; its_term = (current ? current->_term : 0); INIT_TERM_DRIVER(); /* this loads the capability entry, then sets LINES and COLS */ if ( #if NCURSES_SP_FUNCS SP_PARM->_prescreen && #endif TINFO_SETUP_TERM(&new_term, name, fileno(_ofp), &errret, FALSE) != ERR) { _nc_set_screen(0); #ifdef USE_TERM_DRIVER assert(new_term != 0); #endif #if NCURSES_SP_FUNCS slk_format = SP_PARM->slk_format; filter_mode = SP_PARM->_filtered; #else slk_format = _nc_globals.slk_format; filter_mode = _nc_prescreen.filter_mode; #endif /* * This actually allocates the screen structure, and saves the original * terminal settings. */ if (NCURSES_SP_NAME(_nc_setupscreen) ( #if NCURSES_SP_FUNCS &SP_PARM, #endif *(ptrLines(SP_PARM)), *(ptrCols(SP_PARM)), _ofp, filter_mode, slk_format) == ERR) { _nc_set_screen(current); result = 0; } else { #ifdef USE_TERM_DRIVER TERMINAL_CONTROL_BLOCK *TCB; #elif !NCURSES_SP_FUNCS SP_PARM = CURRENT_SCREEN; #endif assert(SP_PARM != 0); cols = *(ptrCols(SP_PARM)); #ifdef USE_TERM_DRIVER _nc_set_screen(SP_PARM); TCB = (TERMINAL_CONTROL_BLOCK *) new_term; TCB->csp = SP_PARM; #endif /* * In setupterm() we did a set_curterm(), but it was before we set * CURRENT_SCREEN. So the "current" screen's terminal pointer was * overwritten with a different terminal. Later, in * _nc_setupscreen(), we set CURRENT_SCREEN and the terminal * pointer in the new screen. * * Restore the terminal-pointer for the pre-existing screen, if * any. */ if (current) current->_term = its_term; #ifdef USE_TERM_DRIVER SP_PARM->_term = new_term; #else new_term = SP_PARM->_term; #endif /* allow user to set maximum escape delay from the environment */ if ((value = _nc_getenv_num("ESCDELAY")) >= 0) { NCURSES_SP_NAME(set_escdelay) (NCURSES_SP_ARGx value); } /* if the terminal type has real soft labels, set those up */ if (slk_format && NumLabels > 0 && SLK_STDFMT(slk_format)) _nc_slk_initialize(StdScreen(SP_PARM), cols); SP_PARM->_ifd = fileno(_ifp); NCURSES_SP_NAME(typeahead) (NCURSES_SP_ARGx fileno(_ifp)); #ifdef TERMIOS SP_PARM->_use_meta = ((new_term->Ottyb.c_cflag & CSIZE) == CS8 && !(new_term->Ottyb.c_iflag & ISTRIP)); #else SP_PARM->_use_meta = FALSE; #endif SP_PARM->_endwin = FALSE; #ifndef USE_TERM_DRIVER /* * Check whether we can optimize scrolling under dumb terminals in * case we do not have any of these capabilities, scrolling * optimization will be useless. */ SP_PARM->_scrolling = ((scroll_forward && scroll_reverse) || ((parm_rindex || parm_insert_line || insert_line) && (parm_index || parm_delete_line || delete_line))); #endif NCURSES_SP_NAME(baudrate) (NCURSES_SP_ARG); /* sets a field in the screen structure */ SP_PARM->_keytry = 0; /* compute movement costs so we can do better move optimization */ #ifdef USE_TERM_DRIVER TCBOf(SP_PARM)->drv->scinit(SP_PARM); #else /* * Check for mismatched graphic-rendition capabilities. Most SVr4 * terminfo trees contain entries that have rmul or rmso equated to * sgr0 (Solaris curses copes with those entries). We do this only * for curses, since many termcap applications assume that * smso/rmso and smul/rmul are paired, and will not function * properly if we remove rmso or rmul. Curses applications * shouldn't be looking at this detail. */ #define SGR0_TEST(mode) (mode != 0) && (exit_attribute_mode == 0 || strcmp(mode, exit_attribute_mode)) SP_PARM->_use_rmso = SGR0_TEST(exit_standout_mode); SP_PARM->_use_rmul = SGR0_TEST(exit_underline_mode); /* compute movement costs so we can do better move optimization */ _nc_mvcur_init(); /* initialize terminal to a sane state */ _nc_screen_init(); #endif /* Initialize the terminal line settings. */ _nc_initscr(NCURSES_SP_ARG); _nc_signal_handler(TRUE); result = SP_PARM; } } _nc_unlock_global(curses); returnSP(result); }