X-Git-Url: http://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=ncurses%2Ftinfo%2Flib_setup.c;h=434d5633a7dcb8388e8eceb43b82c1b233c0d4b0;hp=dddf808fd07236a05169fb13096ff5749547beae;hb=HEAD;hpb=01cec7497c02ab7ca6f0791cc2c7dfbdb2ba9272 diff --git a/ncurses/tinfo/lib_setup.c b/ncurses/tinfo/lib_setup.c index dddf808f..99097f00 100644 --- a/ncurses/tinfo/lib_setup.c +++ b/ncurses/tinfo/lib_setup.c @@ -1,5 +1,6 @@ /**************************************************************************** - * Copyright (c) 1998-2007,2008 Free Software Foundation, Inc. * + * Copyright 2018-2023,2024 Thomas E. Dickey * + * Copyright 1998-2016,2017 Free Software Foundation, Inc. * * * * Permission is hereby granted, free of charge, to any person obtaining a * * copy of this software and associated documentation files (the * @@ -30,30 +31,25 @@ * Author: Zeyd M. Ben-Halim 1992,1995 * * and: Eric S. Raymond * * and: Thomas E. Dickey 1996-on * + * and: Juergen Pfeifer 2009 * ****************************************************************************/ /* * Terminal setup routines common to termcap and terminfo: * * use_env(bool) + * use_tioctl(bool) * setupterm(char *, int, int *) */ #include #include /* for MAX_NAME_SIZE */ -#include - -#if SVR4_TERMIO && !defined(_POSIX_SOURCE) -#define _POSIX_SOURCE -#endif #if HAVE_LOCALE_H #include #endif -#include /* lines, columns, cur_term */ - -MODULE_ID("$Id: lib_setup.c,v 1.110 2008/07/12 18:40:23 tom Exp $") +MODULE_ID("$Id: lib_setup.c,v 1.240 2024/04/20 17:04:05 tom Exp $") /**************************************************************************** * @@ -70,7 +66,7 @@ MODULE_ID("$Id: lib_setup.c,v 1.110 2008/07/12 18:40:23 tom Exp $") #endif #if NEED_PTEM_H - /* On SCO, they neglected to define struct winsize in termios.h -- it's only + /* On SCO, they neglected to define struct winsize in termios.h -- it is only * in termio.h and ptem.h (the former conflicts with other definitions). */ # include @@ -103,67 +99,106 @@ MODULE_ID("$Id: lib_setup.c,v 1.110 2008/07/12 18:40:23 tom Exp $") * Reduce explicit use of "cur_term" global variable. */ #undef CUR -#define CUR termp->type. +#define CUR TerminalType(termp). /* * Wrap global variables in this module. */ #if USE_REENTRANT + NCURSES_EXPORT(char *) NCURSES_PUBLIC_VAR(ttytype) (void) { static char empty[] = ""; - return cur_term ? cur_term->type.term_names : empty; + char *result = empty; + +#if NCURSES_SP_FUNCS + if (CURRENT_SCREEN) { + TERMINAL *termp = TerminalOf(CURRENT_SCREEN); + if (termp != 0) { + result = TerminalType(termp).term_names; + } + } +#else + if (cur_term != 0) { + result = TerminalType(cur_term).term_names; + } +#endif + return result; } + NCURSES_EXPORT(int *) -_nc_ptr_Lines(void) +_nc_ptr_Lines(SCREEN *sp) { - return ptrLines(); + return ptrLines(sp); } + NCURSES_EXPORT(int) NCURSES_PUBLIC_VAR(LINES) (void) { - return *_nc_ptr_Lines(); + return *_nc_ptr_Lines(CURRENT_SCREEN); } + NCURSES_EXPORT(int *) -_nc_ptr_Cols(void) +_nc_ptr_Cols(SCREEN *sp) { - return ptrCols(); + return ptrCols(sp); } + NCURSES_EXPORT(int) NCURSES_PUBLIC_VAR(COLS) (void) { - return *_nc_ptr_Cols(); + return *_nc_ptr_Cols(CURRENT_SCREEN); +} + +NCURSES_EXPORT(int *) +_nc_ptr_Tabsize(SCREEN *sp) +{ + return ptrTabsize(sp); } + NCURSES_EXPORT(int) NCURSES_PUBLIC_VAR(TABSIZE) (void) { - return SP ? SP->_TABSIZE : 8; + return *_nc_ptr_Tabsize(CURRENT_SCREEN); } #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; +NCURSES_EXPORT_VAR(int) TABSIZE = 8; #endif #if NCURSES_EXT_FUNCS NCURSES_EXPORT(int) -set_tabsize(int value) +NCURSES_SP_NAME(set_tabsize) (NCURSES_SP_DCLx int value) { int code = OK; -#if USE_REENTRANT - if (SP) { - SP->_TABSIZE = value; - } else { + if (value <= 0) { code = ERR; - } + } else { +#if USE_REENTRANT + if (SP_PARM) { + SP_PARM->_TABSIZE = value; + } else { + code = ERR; + } #else - TABSIZE = value; + (void) SP_PARM; + TABSIZE = value; #endif + } return code; } + +#if NCURSES_SP_FUNCS +NCURSES_EXPORT(int) +set_tabsize(int value) +{ + return NCURSES_SP_NAME(set_tabsize) (CURRENT_SCREEN, value); +} #endif +#endif /* NCURSES_EXT_FUNCS */ #if USE_SIGWINCH /* @@ -187,101 +222,380 @@ _nc_handle_sigwinch(SCREEN *sp) #endif +NCURSES_EXPORT(void) +NCURSES_SP_NAME(use_env) (NCURSES_SP_DCLx bool f) +{ + START_TRACE(); + T((T_CALLED("use_env(%p,%d)"), (void *) SP_PARM, (int) f)); +#if NCURSES_SP_FUNCS + if (IsPreScreen(SP_PARM)) { + SP_PARM->_use_env = f; + } +#else + _nc_prescreen.use_env = f; +#endif + returnVoid; +} + +NCURSES_EXPORT(void) +NCURSES_SP_NAME(use_tioctl) (NCURSES_SP_DCLx bool f) +{ + START_TRACE(); + T((T_CALLED("use_tioctl(%p,%d)"), (void *) SP_PARM, (int) f)); +#if NCURSES_SP_FUNCS + if (IsPreScreen(SP_PARM)) { + SP_PARM->use_tioctl = f; + } +#else + _nc_prescreen.use_tioctl = f; +#endif + returnVoid; +} + +#if NCURSES_SP_FUNCS NCURSES_EXPORT(void) use_env(bool f) { - T((T_CALLED("use_env()"))); + START_TRACE(); + T((T_CALLED("use_env(%d)"), (int) f)); _nc_prescreen.use_env = f; returnVoid; } NCURSES_EXPORT(void) -_nc_get_screensize(SCREEN *sp, int *linep, int *colp) +use_tioctl(bool f) +{ + START_TRACE(); + T((T_CALLED("use_tioctl(%d)"), (int) f)); + _nc_prescreen.use_tioctl = f; + returnVoid; +} +#endif + +#if !(defined(USE_TERM_DRIVER) || defined(EXP_WIN32_DRIVER)) +static void +_nc_default_screensize(TERMINAL *termp, int *linep, int *colp) +{ + /* if we can't get dynamic info about the size, use static */ + if (*linep <= 0) { + *linep = (int) lines; + } + if (*colp <= 0) { + *colp = (int) columns; + } + + /* the ultimate fallback, assume fixed 24x80 size */ + if (*linep <= 0) { + *linep = 24; + } + if (*colp <= 0) { + *colp = 80; + } +} + +#if defined(USE_CHECK_SIZE) && defined(user6) && defined(user7) +static const char * +skip_csi(const char *value) +{ + if (UChar(*value) == CSI_CHR) { + ++value; + } else if (*value == ESC_CHR && value[1] == L_BLOCK) { + value += 2; + } + return value; +} + +static bool +is_expected(const char *value, const char *expected) +{ + bool result = FALSE; + if (VALID_STRING(value)) { + const char *skipped = skip_csi(value); + if (skipped != value) { + if (!strcmp(skipped, expected)) + result = TRUE; + } + } + return result; +} + +static bool +get_position(TERMINAL *termp, int fd, int *row, int *col) +{ + bool result = FALSE; + size_t need = strlen(user7); + int have; + + have = (int) write(fd, user7, need); + + if (have == (int) need) { + int y, x; + char buf[20]; + char *s; + char cc; + const char *skipped; + int scanned; + + s = memset(buf, '\0', sizeof(buf)); + do { + size_t ask = (sizeof(buf) - 1 - (size_t) (s - buf)); + int got = (int) read(fd, s, ask); + if (got == 0) + break; + s += got; + *s = '\0'; + } while (strchr(buf, 'R') == NULL && (size_t) (s + 1 - buf) < sizeof(buf)); + T(("CPR response %s", _nc_visbuf(buf))); + skipped = skip_csi(buf); + cc = '\0'; + if (skipped != buf + && *skipped != '\0' + && (scanned = sscanf(skip_csi(buf), "%d;%d%c", &y, &x, &cc)) == 3 + && (cc == 'R')) { + *row = y; + *col = x; + result = TRUE; + } + } + T(("get_position %s %d,%d", result ? "OK" : "ERR", *row, *col)); + return result; +} + +static bool +set_position(NCURSES_SP_DCLx TERMINAL *termp, int row, int col) +{ + bool result; + char *actual = TIPARM_2(cursor_address, row, col); + T((T_CALLED("set_position %d,%d)"), row, col)); +#if NCURSES_SP_FUNCS + result = (NCURSES_SP_NAME(_nc_putp) (NCURSES_SP_ARGx "set_position", + actual) == OK); + NCURSES_SP_NAME(_nc_flush) (NCURSES_SP_ARG); +#else + /* This does not support padding because without sp-funcs, we have only + * the interface using stdio, but we are not guaranteed that Filedes + * is the same as fileno(stdout). + */ + result = FALSE; + if (actual != NULL) { + size_t want = strlen(actual); + int have = (int) write(termp->Filedes, actual, want); + result = ((int) want == have); + } +#endif + returnBool(result); +} + +/* + * This is a little more complicated than one might expect, because we do this + * before setting up the terminal modes, etc., and cannot use the timeout or + * buffering functions. + * + * We check if the terminal description has the ECMA-48 CPR (cursor position + * report) in u7 and the response in u6. The two variations of is_expected() + * cover the termcap style and terminfo style, and are equivalent as far as we + * are concerned. For analyzing the response, we wait (a short time) for 'R' + * to be echoed, and then check if we received two integers in the response. + * + * In principle, this could run on "any" ECMA-48 terminal, but in practice, + * there is a scenario using GNU screen where it uses ncurses with a partially + * configured pseudo-terminal, and the CPR response goes to the wrong place. + * So we do a simple check to exclude pseudo-terminals. + */ +static void +_nc_check_screensize(SCREEN *sp, TERMINAL *termp, int *linep, int *colp) +{ + int fd = termp->Filedes; + TTY saved; + const char *name = NULL; + + if (IsRealTty(fd, name) + && VALID_STRING(cursor_address) + && is_expected(user7, "6n") + && (is_expected(user6, "%i%d;%dR") || + is_expected(user6, "%i%p1%d;%p2%dR")) + && GET_TTY(fd, &saved) == OK) { + int current_y = -1, current_x = -1; + int updated_y = -1, updated_x = -1; + TTY alter = saved; + +#if NCURSES_SP_FUNCS + if (sp == NULL) { + sp = new_prescr(); + sp->_term = termp; + NCURSES_SP_NAME(baudrate) (NCURSES_SP_ARG); + } +#else + (void) sp; +#endif + + T(("trying CPR (u7/u6) with %s", name)); + alter.c_lflag &= (unsigned) ~(ECHO | ICANON | ISIG | IEXTEN); + alter.c_iflag &= (unsigned) ~(IXON | BRKINT | PARMRK); + alter.c_cc[VMIN] = 0; + alter.c_cc[VTIME] = 1; + SET_TTY(fd, &alter); + + if (get_position(termp, fd, ¤t_y, ¤t_x) + && set_position(NCURSES_SP_ARGx termp, 9999, 9999) + && get_position(termp, fd, &updated_y, &updated_x)) { + *linep = updated_y; + *colp = updated_x; + set_position(NCURSES_SP_ARGx termp, current_y, current_x); + } + /* restore tty modes */ + SET_TTY(fd, &saved); + } else { + T(("NOT trying CPR with fd %d (%s): %s", + fd, NonNull(name), NC_ISATTY(fd) ? "tty" : "not a tty")); + } + + _nc_default_screensize(termp, linep, colp); +} +#else /* !USE_CHECK_SIZE */ +#define _nc_check_screensize(sp, termp, linep, colp) /* nothing */ +#endif +#endif /* !(defined(USE_TERM_DRIVER) || defined(EXP_WIN32_DRIVER)) */ + +NCURSES_EXPORT(void) +_nc_get_screensize(SCREEN *sp, +#ifdef USE_TERM_DRIVER + TERMINAL *termp, +#endif + int *linep, int *colp) /* Obtain lines/columns values from the environment and/or terminfo entry */ { +#ifdef USE_TERM_DRIVER + TERMINAL_CONTROL_BLOCK *TCB; + int my_tabsize; + + assert(termp != 0 && linep != 0 && colp != 0); + TCB = (TERMINAL_CONTROL_BLOCK *) termp; + + my_tabsize = TCB->info.tabsize; + TCB->drv->td_size(TCB, linep, colp); + +#if USE_REENTRANT + if (sp != 0) { + sp->_TABSIZE = my_tabsize; + } +#else + (void) sp; + TABSIZE = my_tabsize; +#endif + T(("TABSIZE = %d", my_tabsize)); +#else /* !USE_TERM_DRIVER */ TERMINAL *termp = cur_term; int my_tabsize; + bool useEnv = _nc_prescreen.use_env; + bool useTioctl = _nc_prescreen.use_tioctl; + T((T_CALLED("_nc_get_screensize (%p)"), (void *) sp)); +#ifdef EXP_WIN32_DRIVER + /* If we are here, then Windows console is used in terminfo mode. + We need to figure out the size using the console API + */ + _nc_console_size(linep, colp); + T(("screen size: winconsole lines = %d columns = %d", *linep, *colp)); +#else /* figure out the size of the screen */ T(("screen size: terminfo lines = %d columns = %d", lines, columns)); - if (!_nc_prescreen.use_env) { - *linep = (int) lines; - *colp = (int) columns; - } else { /* usually want to query LINES and COLUMNS from environment */ - int value; - - *linep = *colp = 0; + *linep = (int) lines; + *colp = (int) columns; +#endif - /* first, look for environment variables */ - 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)); +#if NCURSES_SP_FUNCS + if (sp) { + useEnv = sp->_use_env; + useTioctl = sp->use_tioctl; + } +#endif + T(("useEnv:%d useTioctl:%d", useEnv, useTioctl)); + if (useEnv || useTioctl) { #ifdef __EMX__ - if (*linep <= 0 || *colp <= 0) { + { int screendata[2]; _scrsize(screendata); *colp = screendata[0]; - *linep = screendata[1]; + *linep = ((sp != 0 && sp->_filtered) + ? 1 + : screendata[1]); T(("EMX screen size: environment LINES = %d COLUMNS = %d", *linep, *colp)); } #endif #if HAVE_SIZECHANGE - /* if that didn't work, maybe we can try asking the OS */ - 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); + /* try asking the OS */ + if (NC_ISATTY(cur_term->Filedes)) { + STRUCT_WINSIZE size; + + errno = 0; + do { + if (ioctl(cur_term->Filedes, IOCTL_WINSIZE, &size) >= 0) { + *linep = ((sp != 0 && sp->_filtered) + ? 1 + : WINSIZE_ROWS(size)); + *colp = WINSIZE_COLS(size); + T(("SYS screen size: environment LINES = %d COLUMNS = %d", + *linep, *colp)); + break; + } + } while + (errno == EINTR); + } +#endif /* HAVE_SIZECHANGE */ + + if (useEnv) { + int value; + if (useTioctl) { /* - * Solaris lets users override either dimension with an - * environment variable. + * If environment variables are used, update them. */ - if (*linep <= 0) - *linep = (sp != 0 && sp->_filtered) ? 1 : WINSIZE_ROWS(size); - if (*colp <= 0) - *colp = WINSIZE_COLS(size); + if ((sp == 0 || !sp->_filtered) && _nc_getenv_num("LINES") > 0) { + _nc_setenv_num("LINES", *linep); + } + if (_nc_getenv_num("COLUMNS") > 0) { + _nc_setenv_num("COLUMNS", *colp); + } } - /* FALLTHRU */ - failure:; - } -#endif /* HAVE_SIZECHANGE */ - /* if we can't get dynamic info about the size, use static */ - if (*linep <= 0) { - *linep = (int) lines; - } - if (*colp <= 0) { - *colp = (int) columns; - } + /* + * Finally, look for environment variables. + * + * Solaris lets users override either dimension with an environment + * variable. + */ + if ((value = _nc_getenv_num("LINES")) > 0) { + *linep = value; + T(("screen size: environment LINES = %d", *linep)); + } + if ((value = _nc_getenv_num("COLUMNS")) > 0) { + *colp = value; + T(("screen size: environment COLUMNS = %d", *colp)); + } - /* the ultimate fallback, assume fixed 24x80 size */ - if (*linep <= 0) { - *linep = 24; - } - if (*colp <= 0) { - *colp = 80; + _nc_default_screensize(termp, linep, colp); + } else { + _nc_check_screensize(sp, termp, linep, colp); } /* * Put the derived values back in the screen-size caps, so * tigetnum() and tgetnum() will do the right thing. */ - lines = (short) (*linep); - columns = (short) (*colp); + lines = (NCURSES_INT2) (*linep); + columns = (NCURSES_INT2) (*colp); +#if NCURSES_EXT_NUMBERS +#define OldNumber(termp,name) \ + (termp)->type.Numbers[(&name - (termp)->type2.Numbers)] + OldNumber(termp, lines) = (short) (*linep); + OldNumber(termp, columns) = (short) (*colp); +#endif + } else { + _nc_check_screensize(sp, termp, linep, colp); } T(("screen size is %dx%d", *linep, *colp)); @@ -298,33 +612,49 @@ _nc_get_screensize(SCREEN *sp, int *linep, int *colp) TABSIZE = my_tabsize; #endif T(("TABSIZE = %d", TABSIZE)); + returnVoid; +#endif /* USE_TERM_DRIVER */ } #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); +#ifdef USE_TERM_DRIVER + int old_lines; + int old_cols; - /* - * See is_term_resized() and resizeterm(). - * We're doing it this way because those functions belong to the upper - * ncurses library, while this resides in the lower terminfo library. - */ - 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; + assert(sp != 0); + + CallDriver_2(sp, td_getsize, &old_lines, &old_cols); + +#else + TERMINAL *termp = cur_term; + int old_lines = lines; + int old_cols = columns; +#endif + + if (sp != 0) { + TINFO_GET_SIZE(sp, sp->_term, &new_lines, &new_cols); + /* + * See is_term_resized() and resizeterm(). + * We're doing it this way because those functions belong to the upper + * ncurses library, while this resides in the lower terminfo library. + */ + if (sp->_resize != 0) { + if ((new_lines != old_lines) || (new_cols != old_cols)) { + sp->_resize(NCURSES_SP_ARGx new_lines, new_cols); + } else if (sp->_sig_winch && (sp->_ungetch != 0)) { + sp->_ungetch(SP_PARM, KEY_RESIZE); /* so application can know this */ + } + sp->_sig_winch = FALSE; + } } } -#endif +#endif /* USE_SIZECHANGE */ /**************************************************************************** * @@ -332,32 +662,16 @@ _nc_update_screensize(SCREEN *sp) * ****************************************************************************/ -#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 +#if NCURSES_USE_DATABASE || NCURSES_USE_TERMCAP /* * Return 1 if entry found, 0 if not found, -1 if database not accessible, * just like tgetent(). */ -static int -grab_entry(const char *const tn, TERMTYPE *const tp) +int +_nc_setup_tinfo(const char *const tn, TERMTYPE2 *const tp) { char filename[PATH_MAX]; - int status = _nc_read_entry(tn, filename, tp); + int status = _nc_read_entry2(tn, filename, tp); /* * If we have an entry, force all of the cancelled strings to null @@ -367,6 +681,7 @@ grab_entry(const char *const tn, TERMTYPE *const tp) */ if (status == TGETENT_YES) { unsigned n; + T(("_nc_setup_tinfo - resetting invalid booleans/strings")); for_each_boolean(n, tp) { if (!VALID_BOOLEAN(tp->Booleans[n])) tp->Booleans[n] = FALSE; @@ -381,27 +696,31 @@ grab_entry(const char *const tn, TERMTYPE *const tp) #endif /* -** do_prototype() -** -** Take the real command character out of the CC environment variable -** and substitute it in for the prototype given in 'command_character'. -*/ -static void -do_prototype(TERMINAL * termp) + * Take the real command character out of the CC environment variable + * and substitute it in for the prototype given in 'command_character'. + */ +void +_nc_tinfo_cmdch(TERMINAL *termp, int proto) { - unsigned i; - char CC; - char proto; char *tmp; - tmp = getenv("CC"); - CC = *tmp; - proto = *command_character; - - for_each_string(i, &(termp->type)) { - for (tmp = termp->type.Strings[i]; *tmp; tmp++) { - if (*tmp == proto) - *tmp = CC; + /* + * Only use the character if the string is a single character, + * since it is fairly common for developers to set the C compiler + * name as an environment variable - using the same symbol. + */ + if ((tmp = getenv("CC")) != 0 && strlen(tmp) == 1) { + unsigned i; + char CC = *tmp; + + for_each_string(i, &(termp->type)) { + tmp = termp->type.Strings[i]; + if (VALID_STRING(tmp)) { + for (; *tmp; ++tmp) { + if (UChar(*tmp) == proto) + *tmp = CC; + } + } } } } @@ -420,9 +739,9 @@ _nc_get_locale(void) */ env = setlocale(LC_CTYPE, 0); #else - if (((env = getenv("LC_ALL")) != 0 && *env != '\0') + if (((env = getenv("LANG")) != 0 && *env != '\0') || ((env = getenv("LC_CTYPE")) != 0 && *env != '\0') - || ((env = getenv("LANG")) != 0 && *env != '\0')) { + || ((env = getenv("LC_ALL")) != 0 && *env != '\0')) { ; } #endif @@ -436,20 +755,27 @@ _nc_get_locale(void) 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)); + static bool initialized = FALSE; + static int result = 0; + + if (!initialized) { +#if defined(_NC_WINDOWS) && USE_WIDEC_SUPPORT + result = 1; +#elif 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)); + 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 + initialized = TRUE; + } return result; } @@ -461,63 +787,104 @@ _nc_unicode_locale(void) * character set. */ NCURSES_EXPORT(int) -_nc_locale_breaks_acs(TERMINAL * termp) +_nc_locale_breaks_acs(TERMINAL *termp) { - char *env; + const char *env_name = "NCURSES_NO_UTF8_ACS"; + const char *env; + int value; + int result = 0; - if ((env = getenv("NCURSES_NO_UTF8_ACS")) != 0) { - return atoi(env); + T((T_CALLED("_nc_locale_breaks_acs:%d"), result)); + if (getenv(env_name) != 0) { + result = _nc_getenv_num(env_name); + } else if ((value = tigetnum("U8")) >= 0) { + result = value; /* use extension feature */ } else if ((env = getenv("TERM")) != 0) { - if (strstr(env, "linux")) - return 1; /* always broken */ - if (strstr(env, "screen") != 0 - && ((env = getenv("TERMCAP")) != 0 - && strstr(env, "screen") != 0) - && strstr(env, "hhII00") != 0) { + if (strstr(env, "linux")) { + result = 1; /* always broken */ + } else 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; + CONTROL_O(set_attributes)) { + result = 1; + } } } - return 0; + returnCode(result); } -/* - * This entrypoint is called from tgetent() to allow a special case of reusing - * the same TERMINAL data (see comment). - */ NCURSES_EXPORT(int) -_nc_setupterm(NCURSES_CONST char *tname, int Filedes, int *errret, bool reuse) +TINFO_SETUP_TERM(TERMINAL **tp, + const char *tname, + int Filedes, + int *errret, + int reuse) { +#ifdef USE_TERM_DRIVER + TERMINAL_CONTROL_BLOCK *TCB = 0; +#endif TERMINAL *termp; - int status; + SCREEN *sp = 0; + char *myname; + int code = ERR; START_TRACE(); - T((T_CALLED("setupterm(%s,%d,%p)"), _nc_visbuf(tname), Filedes, errret)); + +#ifdef USE_TERM_DRIVER + T((T_CALLED("_nc_setupterm_ex(%p,%s,%d,%p)"), + (void *) tp, _nc_visbuf(tname), Filedes, (void *) errret)); + + if (tp == 0) { + ret_error0(TGETENT_ERR, + "Invalid parameter, internal error.\n"); + } else + termp = *tp; +#else + termp = cur_term; + T((T_CALLED("setupterm(%s,%d,%p)"), _nc_visbuf(tname), Filedes, (void *) errret)); +#endif if (tname == 0) { tname = getenv("TERM"); - if (tname == 0 || *tname == '\0') { +#if defined(EXP_WIN32_DRIVER) + if (!VALID_TERM_ENV(tname, NO_TERMINAL)) { + T(("Failure with TERM=%s", NonNull(tname))); + ret_error0(TGETENT_ERR, "TERM environment variable not set.\n"); + } +#elif defined(USE_TERM_DRIVER) + if (!NonEmpty(tname)) + tname = "unknown"; +#else + if (!NonEmpty(tname)) { + T(("Failure with TERM=%s", NonNull(tname))); ret_error0(TGETENT_ERR, "TERM environment variable not set.\n"); } +#endif } - - if (strlen(tname) > MAX_NAME_SIZE) { + myname = strdup(tname); + if (myname == NULL || strlen(myname) > MAX_NAME_SIZE) { ret_error(TGETENT_ERR, - "TERM environment must be <= %d characters.\n", - MAX_NAME_SIZE); + "TERM environment must be 1..%d characters.\n", + MAX_NAME_SIZE, + free(myname)); } - T(("your terminal name is %s", tname)); + T(("your terminal name is %s", myname)); /* * Allow output redirection. This is what SVr3 does. If stdout is * directed to a file, screen updates go to standard error. */ - if (Filedes == STDOUT_FILENO && !isatty(Filedes)) + if (Filedes == STDOUT_FILENO && !NC_ISATTY(Filedes)) Filedes = STDERR_FILENO; +#if defined(EXP_WIN32_DRIVER) + if (Filedes != STDERR_FILENO && NC_ISATTY(Filedes)) + _setmode(Filedes, _O_BINARY); +#endif /* * Check if we have already initialized to use this terminal. If so, we @@ -536,32 +903,83 @@ _nc_setupterm(NCURSES_CONST char *tname, int Filedes, int *errret, bool reuse) * properly with this feature). */ if (reuse - && (termp = cur_term) != 0 + && (termp != 0) && termp->Filedes == Filedes && termp->_termname != 0 - && !strcmp(termp->_termname, tname) - && _nc_name_match(termp->type.term_names, tname, "|")) { + && !strcmp(termp->_termname, myname) + && _nc_name_match(TerminalType(termp).term_names, myname, "|")) { T(("reusing existing terminal information and mode-settings")); + code = OK; +#ifdef USE_TERM_DRIVER + TCB = (TERMINAL_CONTROL_BLOCK *) termp; +#endif } else { +#ifdef USE_TERM_DRIVER + TERMINAL_CONTROL_BLOCK *my_tcb; + termp = 0; + if ((my_tcb = typeCalloc(TERMINAL_CONTROL_BLOCK, 1)) != 0) + termp = &(my_tcb->term); +#else + int status; termp = typeCalloc(TERMINAL, 1); - +#endif if (termp == 0) { - ret_error0(TGETENT_ERR, - "Not enough memory to create terminal structure.\n"); + ret_error1(TGETENT_ERR, + "Not enough memory to create terminal structure.\n", + myname, free(myname)); + } + ++_nc_globals.terminal_count; +#if HAVE_SYSCONF + { + long limit; +#ifdef LINE_MAX + limit = LINE_MAX; +#else + limit = _nc_globals.getstr_limit; +#endif +#ifdef _SC_LINE_MAX + if (limit < sysconf(_SC_LINE_MAX)) + limit = sysconf(_SC_LINE_MAX); +#endif + if (_nc_globals.getstr_limit < (int) limit) + _nc_globals.getstr_limit = (int) limit; + } +#endif /* HAVE_SYSCONF */ + T(("using %d for getstr limit", _nc_globals.getstr_limit)); + +#ifdef USE_TERM_DRIVER + INIT_TERM_DRIVER(); + /* + * _nc_get_driver() will call td_CanHandle() for each driver, and win_driver + * needs file descriptor to do the test, so set it before calling. + */ + termp->Filedes = (short) Filedes; + TCB = (TERMINAL_CONTROL_BLOCK *) termp; + code = _nc_globals.term_driver(TCB, myname, errret); + if (code == OK) { + termp->_termname = strdup(myname); + } else { + ret_error1(errret ? *errret : TGETENT_ERR, + "Could not find any driver to handle terminal.\n", + myname, free(myname)); } -#if USE_DATABASE || USE_TERMCAP - status = grab_entry(tname, &termp->type); #else +#if NCURSES_USE_DATABASE || NCURSES_USE_TERMCAP + status = _nc_setup_tinfo(myname, &TerminalType(termp)); + T(("_nc_setup_tinfo returns %d", status)); +#else + T(("no database available")); status = TGETENT_NO; #endif /* try fallback list if entry on disk */ if (status != TGETENT_YES) { - const TERMTYPE *fallback = _nc_fallback(tname); + const TERMTYPE2 *fallback = _nc_fallback2(myname); if (fallback) { - termp->type = *fallback; + T(("found fallback entry")); + _nc_copy_termtype2(&(TerminalType(termp)), fallback); status = TGETENT_YES; } } @@ -569,52 +987,215 @@ _nc_setupterm(NCURSES_CONST char *tname, int Filedes, int *errret, bool reuse) if (status != TGETENT_YES) { del_curterm(termp); if (status == TGETENT_ERR) { + free(myname); ret_error0(status, "terminals database is inaccessible\n"); } else if (status == TGETENT_NO) { - ret_error(status, "'%s': unknown terminal type.\n", tname); + ret_error1(status, "unknown terminal type.\n", + myname, free(myname)); + } else { + free(myname); + ret_error0(status, "unexpected return-code\n"); } } +#if NCURSES_EXT_NUMBERS + _nc_export_termtype2(&termp->type, &TerminalType(termp)); +#endif #if !USE_REENTRANT - strncpy(ttytype, termp->type.term_names, NAMESIZE - 1); - ttytype[NAMESIZE - 1] = '\0'; + save_ttytype(termp); #endif - termp->Filedes = Filedes; - termp->_termname = strdup(tname); + termp->Filedes = (short) Filedes; + termp->_termname = strdup(myname); set_curterm(termp); - if (command_character && getenv("CC")) - do_prototype(termp); + if (VALID_STRING(command_character)) + _nc_tinfo_cmdch(termp, UChar(*command_character)); /* * If an application calls setupterm() rather than initscr() or * newterm(), we will not have the def_prog_mode() call in * _nc_setupscreen(). Do it now anyway, so we can initialize the - * baudrate. + * baudrate. Also get the shell-mode so that erasechar() works. */ - if (isatty(Filedes)) { - def_prog_mode(); - baudrate(); + if (NC_ISATTY(Filedes)) { + NCURSES_SP_NAME(def_shell_mode) (NCURSES_SP_ARG); + NCURSES_SP_NAME(def_prog_mode) (NCURSES_SP_ARG); + NCURSES_SP_NAME(baudrate) (NCURSES_SP_ARG); } + code = OK; +#endif } +#ifdef USE_TERM_DRIVER + *tp = termp; + NCURSES_SP_NAME(set_curterm) (sp, termp); + TCB->drv->td_init(TCB); +#else + sp = SP; +#endif + /* * We should always check the screensize, just in case. */ - _nc_get_screensize(SP, ptrLines(), ptrCols()); + TINFO_GET_SIZE(sp, termp, ptrLines(sp), ptrCols(sp)); if (errret) *errret = TGETENT_YES; +#ifndef USE_TERM_DRIVER if (generic_type) { - ret_error(TGETENT_NO, "'%s': I need something more specific.\n", tname); + /* + * BSD 4.3's termcap contains mis-typed "gn" for wy99. Do a sanity + * check before giving up. + */ + if ((VALID_STRING(cursor_address) + || (VALID_STRING(cursor_down) && VALID_STRING(cursor_home))) + && VALID_STRING(clear_screen)) { + ret_error1(TGETENT_YES, "terminal is not really generic.\n", + myname, free(myname)); + } else { + del_curterm(termp); + ret_error1(TGETENT_NO, "I need something more specific.\n", + myname, free(myname)); + } + } else if (hard_copy) { + ret_error1(TGETENT_YES, "I can't handle hardcopy terminals.\n", + myname, free(myname)); + } +#endif + free(myname); + returnCode(code); +} + +#ifdef USE_PTHREADS +/* + * Returns a non-null pointer unless a new screen should be allocated because + * no match was found in the pre-screen cache. + */ +NCURSES_EXPORT(SCREEN *) +_nc_find_prescr(void) +{ + SCREEN *result = 0; + PRESCREEN_LIST *p; + pthread_t id = GetThreadID(); + for (p = _nc_prescreen.allocated; p != 0; p = p->next) { + if (p->id == id) { + result = p->sp; + break; + } + } + return result; +} + +/* + * Tells ncurses to forget that this thread was associated with the pre-screen + * cache. It does not modify the pre-screen cache itself, since that is used + * for creating new screens. + */ +NCURSES_EXPORT(void) +_nc_forget_prescr(void) +{ + PRESCREEN_LIST *p, *q; + pthread_t id = GetThreadID(); + _nc_lock_global(screen); + for (p = _nc_prescreen.allocated, q = 0; p != 0; q = p, p = p->next) { + if (p->id == id) { + if (q) { + q->next = p->next; + } else { + _nc_prescreen.allocated = p->next; + } + free(p); + break; + } } - if (hard_copy) { - ret_error(TGETENT_YES, "'%s': I can't handle hardcopy terminals.\n", tname); + _nc_unlock_global(screen); +} +#endif /* USE_PTHREADS */ + +#if NCURSES_SP_FUNCS +/* + * In case of handling multiple screens, we need to have a screen before + * initialization in _nc_setupscreen takes place. This is to extend the + * substitute for some of the stuff in _nc_prescreen, especially for slk and + * ripoff handling which should be done per screen. + */ +NCURSES_EXPORT(SCREEN *) +new_prescr(void) +{ + SCREEN *sp; + + START_TRACE(); + T((T_CALLED("new_prescr()"))); + + _nc_lock_global(screen); + if ((sp = _nc_find_prescr()) == 0) { + sp = _nc_alloc_screen_sp(); + T(("_nc_alloc_screen_sp %p", (void *) sp)); + if (sp != 0) { +#ifdef USE_PTHREADS + PRESCREEN_LIST *p = typeCalloc(PRESCREEN_LIST, 1); + if (p != 0) { + p->id = GetThreadID(); + p->sp = sp; + p->next = _nc_prescreen.allocated; + _nc_prescreen.allocated = p; + } +#else + _nc_prescreen.allocated = sp; +#endif + sp->rsp = sp->rippedoff; + sp->_filtered = _nc_prescreen.filter_mode; + sp->_use_env = _nc_prescreen.use_env; +#if NCURSES_NO_PADDING + sp->_no_padding = _nc_prescreen._no_padding; +#endif + sp->slk_format = 0; + sp->_slk = 0; + sp->_prescreen = TRUE; + SP_PRE_INIT(sp); +#if USE_REENTRANT + sp->_TABSIZE = _nc_prescreen._TABSIZE; + sp->_ESCDELAY = _nc_prescreen._ESCDELAY; +#endif + } + } else { + T(("_nc_alloc_screen_sp %p (reuse)", (void *) sp)); } - returnCode(OK); + _nc_unlock_global(screen); + returnSP(sp); } +#endif + +#ifdef USE_TERM_DRIVER +/* + * This entrypoint is called from tgetent() to allow a special case of reusing + * the same TERMINAL data (see comment). + */ +NCURSES_EXPORT(int) +_nc_setupterm(const char *tname, + int Filedes, + int *errret, + int reuse) +{ + int rc = ERR; + TERMINAL *termp = 0; + + _nc_init_pthreads(); + _nc_lock_global(prescreen); + START_TRACE(); + if (TINFO_SETUP_TERM(&termp, tname, Filedes, errret, reuse) == OK) { + _nc_forget_prescr(); + if (NCURSES_SP_NAME(set_curterm) (CURRENT_SCREEN_PRE, termp) != 0) { + rc = OK; + } + } + _nc_unlock_global(prescreen); + + return rc; +} +#endif /* * setupterm(termname, Filedes, errret) @@ -623,7 +1204,8 @@ _nc_setupterm(NCURSES_CONST char *tname, int Filedes, int *errret, bool reuse) * Make cur_term point to the structure. */ NCURSES_EXPORT(int) -setupterm(NCURSES_CONST char *tname, int Filedes, int *errret) +setupterm(const char *tname, int Filedes, int *errret) { + START_TRACE(); return _nc_setupterm(tname, Filedes, errret, FALSE); }