X-Git-Url: https://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=progs%2Ftput.c;h=4bb771478d255964d7cd46d743c5224f1649d5ee;hp=e14140eba7c268e13e36199a3ae3fd8b6ba41d47;hb=73dd18dba5148d708638caa25c085d82f704e972;hpb=661078ddbde3ce0f3b06e95642fbb9b5fef7dca1 diff --git a/progs/tput.c b/progs/tput.c index e14140eb..4bb77147 100644 --- a/progs/tput.c +++ b/progs/tput.c @@ -1,5 +1,6 @@ /**************************************************************************** - * Copyright (c) 1998 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 * @@ -29,9 +30,9 @@ /**************************************************************************** * Author: Zeyd M. Ben-Halim 1992,1995 * * and: Eric S. Raymond * + * and: Thomas E. Dickey 1996-on * ****************************************************************************/ - /* * tput.c -- shellscript access to terminal capabilities * @@ -39,246 +40,354 @@ * Ross Ridge's mytinfo package. */ -#include +#include +#include +#include -#include +#if !PURE_TERMINFO +#include +#include +#endif +#include +#include -MODULE_ID("$Id: tput.c,v 1.11 1998/02/11 12:14:02 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) + +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, ...) +static void +quit(int status, const char *fmt, ...) { -va_list argp; + va_list argp; + + va_start(argp, fmt); + fprintf(stderr, "%s: ", prg_name); + vfprintf(stderr, fmt, argp); + fprintf(stderr, "\n"); + va_end(argp); + ExitProgram(status); +} - va_start(argp,fmt); - vfprintf (stderr, fmt, argp); - fprintf(stderr, "\n"); - va_end(argp); - exit(status); +static void +usage(void) +{ +#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); } -static void usage(void) +static char * +check_aliases(char *name, bool program) { - fprintf(stderr, "usage: %s [-S] [-T term] capname\n", prg_name); - exit(EXIT_FAILURE); + 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; } -static int tput(int argc, char *argv[]) +static int +exit_code(int token, int value) { -char *s; -int i, j, c; -int reset, status; -FILE *f; - - reset = 0; - if (strcmp(argv[0], "reset") == 0) { - reset = 1; - } - if (reset || strcmp(argv[0], "init") == 0) { - if (init_prog != NULL) { - system(init_prog); - } - FLUSH; + int result = 99; + + switch (token) { + case BOOLEAN: + result = !value; /* TRUE=0, FALSE=1 */ + break; + case NUMBER: + result = 0; /* always zero */ + break; + case STRING: + result = value; /* 0=normal, 1=missing */ + break; + } + return result; +} - if (reset && reset_1string != NULL) { - PUTS(reset_1string); - } else if (init_1string != NULL) { - PUTS(init_1string); - } - FLUSH; - - if (reset && reset_2string != NULL) { - PUTS(reset_2string); - } else if (init_2string != NULL) { - PUTS(init_2string); - } - FLUSH; - - if (set_lr_margin != NULL) { - PUTS(tparm(set_lr_margin, 0, columns - 1)); - } else if (set_left_margin_parm != NULL - && set_right_margin_parm != NULL) { - PUTS(tparm(set_left_margin_parm, 0)); - PUTS(tparm(set_right_margin_parm, columns - 1)); - } else if (clear_margins != NULL && set_left_margin != NULL - && set_right_margin != NULL) { - PUTS(clear_margins); - if (carriage_return != NULL) { - PUTS(carriage_return); - } else { - PUTCHAR('\r'); - } - PUTS(set_left_margin); - if (parm_right_cursor) { - PUTS(tparm(parm_right_cursor, columns - 1)); - } else { - for(i = 0; i < columns - 1; i++) { - PUTCHAR(' '); - } - } - PUTS(set_right_margin); - if (carriage_return != NULL) { - PUTS(carriage_return); - } else { - PUTCHAR('\r'); - } - } - FLUSH; - - if (init_tabs != 8) { - if (clear_all_tabs != NULL && set_tab != NULL) { - for(i = 0; i < columns - 1; i += 8) { - if (parm_right_cursor) { - PUTS(tparm(parm_right_cursor, 8)); - } else { - for(j = 0; j < 8; j++) - PUTCHAR(' '); - } - PUTS(set_tab); - } - FLUSH; - } - } - - if (reset && reset_file != NULL) { - f = fopen(reset_file, "r"); - if (f == NULL) { - quit(errno, "Can't open reset_file: '%s'", reset_file); - } - while((c = fgetc(f)) != EOF) { - PUTCHAR(c); - } - fclose(f); - } else if (init_file != NULL) { - f = fopen(init_file, "r"); - if (f == NULL) { - quit(errno, "Can't open init_file: '%s'", init_file); - } - while((c = fgetc(f)) != EOF) { - PUTCHAR(c); - } - fclose(f); - } - FLUSH; - - if (reset && reset_3string != NULL) { - PUTS(reset_3string); - } else if (init_2string != NULL) { - PUTS(init_2string); - } - FLUSH; - return 0; - } - - if (strcmp(argv[0], "longname") == 0) { - PUTS(longname()); - return 0; +/* + * Returns nonzero on error. + */ +static int +tput_cmd(int fd, TTY * saved_settings, bool opt_x, int argc, char *argv[]) +{ + NCURSES_CONST char *name; + char *s; + int status; +#if !PURE_TERMINFO + bool termcap = FALSE; +#endif + + name = check_aliases(argv[0], FALSE); + if (is_reset || is_init) { + TTY oldmode; + + int terasechar = -1; /* new erase character */ + int intrchar = -1; /* new interrupt character */ + int tkillchar = -1; /* new kill character */ + + if (is_reset) { + reset_start(stdout, TRUE, FALSE); + reset_tty_settings(fd, saved_settings); + } else { + reset_start(stdout, FALSE, TRUE); } - if ((status = tigetflag(argv[0])) != -1) - return(status != 0); - else if ((status = tigetnum(argv[0])) != CANCELLED_NUMERIC) { - (void) printf("%d\n", status); - return(0); +#if HAVE_SIZECHANGE + set_window_size(fd, &lines, &columns); +#else + (void) fd; +#endif + set_control_chars(saved_settings, terasechar, intrchar, tkillchar); + set_conversions(saved_settings); + if (send_init_strings(fd, &oldmode)) { + reset_flush(); } - else if ((s = tigetstr(argv[0])) == CANCELLED_STRING) - quit(4, "%s: unknown terminfo capability '%s'", prg_name, argv[0]); - else if (s != (char *)NULL) { - if (argc > 1) { - int k; - - /* Nasty hack time. The tparm function needs to see numeric - * parameters as numbers, not as pointers to their string - * representations - */ - - for (k = 1; k < argc; k++) - if (isdigit(argv[k][0])) { - long val = atol(argv[k]); - argv[k] = (char *)val; - } - - s = tparm(s,argv[1],argv[2],argv[3],argv[4], - argv[5],argv[6],argv[7],argv[8], - argv[9]); - } - /* use putp() in order to perform padding */ - putp(s); - return(0); + update_tty_settings(&oldmode, saved_settings); + return 0; + } + + if (strcmp(name, "longname") == 0) { + PUTS(longname()); + return 0; + } +#if !PURE_TERMINFO + 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; + + 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; + + case NUMBER: + name = numnames[np->nte_index]; + break; + + case STRING: + name = strnames[np->nte_index]; + break; + } + goto retry; + } } - return(0); -} +#endif + quit(ErrCapName, "unknown terminfo capability '%s'", name); + } else if (VALID_STRING(s)) { + if (argc > 1) { + int k; + int ignored; + long numbers[1 + NUM_PARM]; + char *strings[1 + NUM_PARM]; + char *p_is_s[NUM_PARM]; + + /* Nasty hack time. The tparm function needs to see numeric + * parameters as numbers, not as pointers to their string + * representations + */ + + for (k = 1; (k < argc) && (k < NUM_PARM); k++) { + char *tmp = 0; + strings[k] = argv[k]; + numbers[k] = strtol(argv[k], &tmp, 0); + if (tmp == 0 || *tmp != 0) + numbers[k] = 0; + } + for (k = argc; k <= NUM_PARM; k++) { + numbers[k] = 0; + strings[k] = 0; + } -int main(int argc, char **argv) -{ -char *s, *term; -int errret, cmdline = 1; -int c; -char buf[BUFSIZ]; -int errors = 0; - - prg_name = argv[0]; - s = strrchr(prg_name, '/'); - if (s != NULL && *++s != '\0') - prg_name = s; - - term = getenv("TERM"); - - while ((c = getopt (argc, argv, "ST:")) != EOF) - switch (c) - { - case 'S': - cmdline = 0; + switch (tparm_type(name)) { + case Num_Str: + s = TPARM_2(s, numbers[1], strings[2]); break; - case 'T': - use_env(FALSE); - term = optarg; + case Num_Str_Str: + 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: - usage(); - /* NOTREACHED */ + (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), + myParam(3), + myParam(4), + myParam(5), + myParam(6), + myParam(7), + myParam(8), + myParam(9)); +#undef myParam + break; } - argc -= optind; - argv += optind; - - if (cmdline && argc == 0) { - usage(); - /* NOTREACHED */ } - if (term == NULL || *term == '\0') - quit(2, "No value for $TERM and no -T specified"); - - if (setupterm(term, STDOUT_FILENO, &errret) != OK) - quit(3, "unknown terminal \"%s\"", term); - - if (cmdline) - return tput(argc, argv); - - while (fgets(buf, sizeof(buf), stdin) != (char *)NULL) { - char *argvec[16]; /* command, 9 parms, null, & slop */ - int argnum = 0; - char *cp; + /* use putp() in order to perform padding */ + putp(s); + return exit_code(STRING, 0); + } + return exit_code(STRING, 1); +} - /* crack the argument list into a dope vector */ - for (cp = buf; *cp; cp++) { - if (isspace(*cp)) - *cp = '\0'; - else if (cp == buf || cp[-1] == 0) - argvec[argnum++] = cp; - } - argvec[argnum] = (char *)NULL; +int +main(int argc, char **argv) +{ + char *term; + int errret; + bool cmdline = TRUE; + 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; + + prg_name = check_aliases(_nc_rootname(argv[0]), TRUE); + + term = getenv("TERM"); + + 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_alias) { + if (optind-- < argc) { + argc -= optind; + argv += optind; + } + argv[0] = prg_name; + } else { + argc -= optind; + argv += optind; + } + + if (term == 0 || *term == '\0') + quit(ErrUsage, "No value for $TERM and no -T specified"); + + fd = save_tty_settings(&tty_settings, need_tty); + + if (setupterm(term, fd, &errret) != OK && errret <= 0) + quit(ErrTermType, "unknown terminal \"%s\"", term); + + if (cmdline) { + if ((argc <= 0) && !is_alias) + usage(); + ExitProgram(tput_cmd(fd, &tty_settings, opt_x, argc, argv)); + } + + while (fgets(buf, sizeof(buf), stdin) != 0) { + char *argvec[16]; /* command, 9 parms, null, & slop */ + int argnum = 0; + char *cp; + + /* crack the argument list into a dope vector */ + for (cp = buf; *cp; cp++) { + if (isspace(UChar(*cp))) { + *cp = '\0'; + } else if (cp == buf || cp[-1] == 0) { + argvec[argnum++] = cp; + if (argnum >= (int) SIZEOF(argvec) - 1) + break; + } + } + argvec[argnum] = 0; - if (tput(argnum, argvec) != 0) - errors++; + if (argnum != 0 + && tput_cmd(fd, &tty_settings, opt_x, argnum, argvec) != 0) { + if (result == 0) + result = ErrSystem(0); /* will return value >4 */ + ++result; } + } - return errors > 0; + ExitProgram(result); } -