X-Git-Url: https://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=progs%2Ftput.c;h=4bb771478d255964d7cd46d743c5224f1649d5ee;hp=d594adbef3b52f37c0af79790e312464b747eeff;hb=1f7a36fe16b11bb4aab51be89bbc1b0f75936b78;hpb=772f879d17117c5b766022f28099e341ebea825b diff --git a/progs/tput.c b/progs/tput.c index d594adbe..4bb77147 100644 --- a/progs/tput.c +++ b/progs/tput.c @@ -1,5 +1,6 @@ /**************************************************************************** - * Copyright (c) 1998-2006,2007 Free Software Foundation, Inc. * + * Copyright 2018-2019,2020 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 * @@ -29,6 +30,7 @@ /**************************************************************************** * Author: Zeyd M. Ben-Halim 1992,1995 * * and: Eric S. Raymond * + * and: Thomas E. Dickey 1996-on * ****************************************************************************/ /* @@ -38,31 +40,30 @@ * Ross Ridge's mytinfo package. */ -#include +#include +#include +#include #if !PURE_TERMINFO +#include #include #endif #include +#include -MODULE_ID("$Id: tput.c,v 1.40 2007/07/21 17:45:59 tom Exp $") +MODULE_ID("$Id: tput.c,v 1.83 2020/05/27 23:47:51 tom Exp $") #define PUTS(s) fputs(s, stdout) -#define PUTCHAR(c) putchar(c) -#define FLUSH fflush(stdout) -typedef enum { - Numbers = 0 - ,Num_Str - ,Num_Str_Str -} TParams; +const char *_nc_progname = "tput"; static char *prg_name; static bool is_init = FALSE; static bool is_reset = FALSE; +static bool is_clear = FALSE; static void -quit(int status, const char *fmt,...) +quit(int status, const char *fmt, ...) { va_list argp; @@ -77,50 +78,42 @@ quit(int status, const char *fmt,...) static void usage(void) { - fprintf(stderr, "usage: %s [-V] [-S] [-T term] capname\n", prg_name); - ExitProgram(EXIT_FAILURE); -} - -static void -check_aliases(const char *name) -{ - is_init = (strcmp(name, PROG_INIT) == 0); - is_reset = (strcmp(name, PROG_RESET) == 0); +#define KEEP(s) s "\n" + static const char msg[] = + { + KEEP("") + KEEP("Options:") + KEEP(" -S << read commands from standard input") + KEEP(" -T TERM use this instead of $TERM") + KEEP(" -V print curses-version") + KEEP(" -x do not try to clear scrollback") + KEEP("") + KEEP("Commands:") + KEEP(" clear clear the screen") + KEEP(" init initialize the terminal") + KEEP(" reset reinitialize the terminal") + KEEP(" capname unlike clear/init/reset, print value for capability \"capname\"") + }; +#undef KEEP + (void) fprintf(stderr, "Usage: %s [options] [command]\n", prg_name); + fputs(msg, stderr); + ExitProgram(ErrUsage); } -/* - * Lookup the type of call we should make to tparm(). This ignores the actual - * terminfo capability (bad, because it is not extensible), but makes this - * code portable to platforms where sizeof(int) != sizeof(char *). - * - * FIXME: If we want extensibility, analyze the capability string as we do - * in tparm() to decide how to parse the varargs list. - */ -static TParams -tparm_type(const char *name) +static char * +check_aliases(char *name, bool program) { -#define TD(code, longname, ti, tc) {code,longname},{code,ti},{code,tc} - TParams result = Numbers; - /* *INDENT-OFF* */ - static const struct { - TParams code; - const char *name; - } table[] = { - TD(Num_Str, "pkey_key", "pfkey", "pk"), - TD(Num_Str, "pkey_local", "pfloc", "pl"), - TD(Num_Str, "pkey_xmit", "pfx", "px"), - TD(Num_Str, "plab_norm", "pln", "pn"), - TD(Num_Str_Str, "pkey_plab", "pfxl", "xl"), - }; - /* *INDENT-ON* */ - - unsigned n; - for (n = 0; n < SIZEOF(table); n++) { - if (!strcmp(name, table[n].name)) { - result = table[n].code; - break; - } - } + static char my_init[] = "init"; + static char my_reset[] = "reset"; + static char my_clear[] = "clear"; + + char *result = name; + if ((is_init = same_program(name, program ? PROG_INIT : my_init))) + result = my_init; + if ((is_reset = same_program(name, program ? PROG_RESET : my_reset))) + result = my_reset; + if ((is_clear = same_program(name, program ? PROG_CLEAR : my_clear))) + result = my_clear; return result; } @@ -143,118 +136,46 @@ exit_code(int token, int value) return result; } +/* + * Returns nonzero on error. + */ static int -tput(int argc, char *argv[]) +tput_cmd(int fd, TTY * saved_settings, bool opt_x, int argc, char *argv[]) { NCURSES_CONST char *name; char *s; - int i, j, c; int status; - FILE *f; +#if !PURE_TERMINFO + bool termcap = FALSE; +#endif - if ((name = argv[0]) == 0) - name = ""; - check_aliases(name); + name = check_aliases(argv[0], FALSE); if (is_reset || is_init) { - if (init_prog != 0) { - system(init_prog); - } - FLUSH; + TTY oldmode; - if (is_reset && reset_1string != 0) { - PUTS(reset_1string); - } else if (init_1string != 0) { - PUTS(init_1string); - } - FLUSH; + int terasechar = -1; /* new erase character */ + int intrchar = -1; /* new interrupt character */ + int tkillchar = -1; /* new kill character */ - if (is_reset && reset_2string != 0) { - PUTS(reset_2string); - } else if (init_2string != 0) { - PUTS(init_2string); + if (is_reset) { + reset_start(stdout, TRUE, FALSE); + reset_tty_settings(fd, saved_settings); + } else { + reset_start(stdout, FALSE, TRUE); } - FLUSH; -#ifdef set_lr_margin - if (set_lr_margin != 0) { - PUTS(TPARM_2(set_lr_margin, 0, columns - 1)); - } else +#if HAVE_SIZECHANGE + set_window_size(fd, &lines, &columns); +#else + (void) fd; #endif -#ifdef set_left_margin_parm - if (set_left_margin_parm != 0 - && set_right_margin_parm != 0) { - PUTS(TPARM_1(set_left_margin_parm, 0)); - PUTS(TPARM_1(set_right_margin_parm, columns - 1)); - } else -#endif - if (clear_margins != 0 - && set_left_margin != 0 - && set_right_margin != 0) { - PUTS(clear_margins); - if (carriage_return != 0) { - PUTS(carriage_return); - } else { - PUTCHAR('\r'); - } - PUTS(set_left_margin); - if (parm_right_cursor) { - PUTS(TPARM_1(parm_right_cursor, columns - 1)); - } else { - for (i = 0; i < columns - 1; i++) { - PUTCHAR(' '); - } - } - PUTS(set_right_margin); - if (carriage_return != 0) { - PUTS(carriage_return); - } else { - PUTCHAR('\r'); - } - } - FLUSH; - - if (init_tabs != 8) { - if (clear_all_tabs != 0 && set_tab != 0) { - for (i = 0; i < columns - 1; i += 8) { - if (parm_right_cursor) { - PUTS(TPARM_1(parm_right_cursor, 8)); - } else { - for (j = 0; j < 8; j++) - PUTCHAR(' '); - } - PUTS(set_tab); - } - FLUSH; - } + set_control_chars(saved_settings, terasechar, intrchar, tkillchar); + set_conversions(saved_settings); + if (send_init_strings(fd, &oldmode)) { + reset_flush(); } - if (is_reset && reset_file != 0) { - f = fopen(reset_file, "r"); - if (f == 0) { - quit(4 + errno, "Can't open reset_file: '%s'", reset_file); - } - while ((c = fgetc(f)) != EOF) { - PUTCHAR(c); - } - fclose(f); - } else if (init_file != 0) { - f = fopen(init_file, "r"); - if (f == 0) { - quit(4 + errno, "Can't open init_file: '%s'", init_file); - } - while ((c = fgetc(f)) != EOF) { - PUTCHAR(c); - } - fclose(f); - } - FLUSH; - - if (is_reset && reset_3string != 0) { - PUTS(reset_3string); - } else if (init_3string != 0) { - PUTS(init_3string); - } - FLUSH; + update_tty_settings(&oldmode, saved_settings); return 0; } @@ -263,40 +184,44 @@ tput(int argc, char *argv[]) return 0; } #if !PURE_TERMINFO - { - const struct name_table_entry *np; + retry: +#endif + if (strcmp(name, "clear") == 0) { + return (clear_cmd(opt_x) == ERR) ? ErrUsage : 0; + } else if ((status = tigetflag(name)) != -1) { + return exit_code(BOOLEAN, status); + } else if ((status = tigetnum(name)) != CANCELLED_NUMERIC) { + (void) printf("%d\n", status); + return exit_code(NUMBER, 0); + } else if ((s = tigetstr(name)) == CANCELLED_STRING) { +#if !PURE_TERMINFO + if (!termcap) { + const struct name_table_entry *np; - if ((np = _nc_find_entry(name, _nc_get_hash_table(1))) != 0) - switch (np->nte_type) { - case BOOLEAN: - if (bool_from_termcap[np->nte_index]) + termcap = TRUE; + if ((np = _nc_find_entry(name, _nc_get_hash_table(termcap))) != 0) { + switch (np->nte_type) { + case BOOLEAN: name = boolnames[np->nte_index]; - break; + break; - case NUMBER: - if (num_from_termcap[np->nte_index]) + case NUMBER: name = numnames[np->nte_index]; - break; + break; - case STRING: - if (str_from_termcap[np->nte_index]) + case STRING: name = strnames[np->nte_index]; - break; + break; + } + goto retry; } - } + } #endif - - if ((status = tigetflag(name)) != -1) { - return exit_code(BOOLEAN, status); - } else if ((status = tigetnum(name)) != CANCELLED_NUMERIC) { - (void) printf("%d\n", status); - return exit_code(NUMBER, 0); - } else if ((s = tigetstr(name)) == CANCELLED_STRING) { - quit(4, "unknown terminfo capability '%s'", name); - } else if (s != ABSENT_STRING) { + quit(ErrCapName, "unknown terminfo capability '%s'", name); + } else if (VALID_STRING(s)) { if (argc > 1) { int k; - int popcount; + int ignored; long numbers[1 + NUM_PARM]; char *strings[1 + NUM_PARM]; char *p_is_s[NUM_PARM]; @@ -306,7 +231,7 @@ tput(int argc, char *argv[]) * representations */ - for (k = 1; k < argc; k++) { + for (k = 1; (k < argc) && (k < NUM_PARM); k++) { char *tmp = 0; strings[k] = argv[k]; numbers[k] = strtol(argv[k], &tmp, 0); @@ -326,9 +251,22 @@ tput(int argc, char *argv[]) s = TPARM_3(s, numbers[1], strings[2], strings[3]); break; case Numbers: +#define myParam(n) numbers[n] + s = TIPARM_9(s, + myParam(1), + myParam(2), + myParam(3), + myParam(4), + myParam(5), + myParam(6), + myParam(7), + myParam(8), + myParam(9)); +#undef myParam + break; default: - (void) _nc_tparm_analyze(s, p_is_s, &popcount); -#define myParam(n) (p_is_s[n - 1] != 0 ? ((long) strings[n]) : numbers[n]) + (void) _nc_tparm_analyze(s, p_is_s, &ignored); +#define myParam(n) (p_is_s[n - 1] != 0 ? ((TPARM_ARG) strings[n]) : numbers[n]) s = TPARM_9(s, myParam(1), myParam(2), @@ -339,6 +277,7 @@ tput(int argc, char *argv[]) myParam(7), myParam(8), myParam(9)); +#undef myParam break; } } @@ -359,33 +298,48 @@ main(int argc, char **argv) int c; char buf[BUFSIZ]; int result = 0; + int fd; + TTY tty_settings; + bool opt_x = FALSE; /* clear scrollback if possible */ + bool is_alias; + bool need_tty; - check_aliases(prg_name = _nc_rootname(argv[0])); + prg_name = check_aliases(_nc_rootname(argv[0]), TRUE); term = getenv("TERM"); - while ((c = getopt(argc, argv, "ST:V")) != -1) { + while ((c = getopt(argc, argv, "ST:Vx")) != -1) { switch (c) { case 'S': cmdline = FALSE; break; case 'T': use_env(FALSE); + use_tioctl(TRUE); term = optarg; break; case 'V': puts(curses_version()); ExitProgram(EXIT_SUCCESS); + case 'x': /* do not try to clear scrollback */ + opt_x = TRUE; + break; default: usage(); /* NOTREACHED */ } } + is_alias = (is_clear || is_reset || is_init); + need_tty = ((is_reset || is_init) || + (optind < argc && + (!strcmp(argv[optind], "reset") || + !strcmp(argv[optind], "init")))); + /* * Modify the argument list to omit the options we processed. */ - if (is_reset || is_init) { + if (is_alias) { if (optind-- < argc) { argc -= optind; argv += optind; @@ -397,15 +351,17 @@ main(int argc, char **argv) } if (term == 0 || *term == '\0') - quit(2, "No value for $TERM and no -T specified"); + quit(ErrUsage, "No value for $TERM and no -T specified"); + + fd = save_tty_settings(&tty_settings, need_tty); - if (setupterm(term, STDOUT_FILENO, &errret) != OK && errret <= 0) - quit(3, "unknown terminal \"%s\"", term); + if (setupterm(term, fd, &errret) != OK && errret <= 0) + quit(ErrTermType, "unknown terminal \"%s\"", term); if (cmdline) { - if ((argc <= 0) && !is_reset && !is_init) + if ((argc <= 0) && !is_alias) usage(); - ExitProgram(tput(argc, argv)); + ExitProgram(tput_cmd(fd, &tty_settings, opt_x, argc, argv)); } while (fgets(buf, sizeof(buf), stdin) != 0) { @@ -426,9 +382,9 @@ main(int argc, char **argv) argvec[argnum] = 0; if (argnum != 0 - && tput(argnum, argvec) != 0) { + && tput_cmd(fd, &tty_settings, opt_x, argnum, argvec) != 0) { if (result == 0) - result = 4; /* will return value >4 */ + result = ErrSystem(0); /* will return value >4 */ ++result; } }