X-Git-Url: https://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=progs%2Ftput.c;h=fe82d47235f5b3c0d103d4648f8f480ac487d772;hp=481ae6356d16efe48c1caa8a28f945479a06e909;hb=493e2f7b3fc309879f561a094fdfc15e5304b3d6;hpb=62ca6190a9a8ddccb2c4d5ca7b2ef9f88432da65 diff --git a/progs/tput.c b/progs/tput.c index 481ae635..fe82d472 100644 --- a/progs/tput.c +++ b/progs/tput.c @@ -1,5 +1,6 @@ /**************************************************************************** - * Copyright (c) 1998-2015,2016 Free Software Foundation, Inc. * + * Copyright 2018-2020,2021 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 * @@ -43,14 +44,10 @@ #include #include -#if !PURE_TERMINFO -#include -#include -#endif #include #include -MODULE_ID("$Id: tput.c,v 1.65 2016/12/24 18:44:32 tom Exp $") +MODULE_ID("$Id: tput.c,v 1.91 2021/08/21 00:24:45 tom Exp $") #define PUTS(s) fputs(s, stdout) @@ -61,8 +58,8 @@ static bool is_init = FALSE; static bool is_reset = FALSE; static bool is_clear = FALSE; -static void -quit(int status, const char *fmt,...) +static GCC_NORETURN void +quit(int status, const char *fmt, ...) { va_list argp; @@ -74,11 +71,29 @@ quit(int status, const char *fmt,...) ExitProgram(status); } -static void +static GCC_NORETURN void usage(void) { - fprintf(stderr, "usage: %s [-V] [-S] [-T term] capname\n", prg_name); - ExitProgram(EXIT_FAILURE); +#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 char * @@ -117,8 +132,11 @@ exit_code(int token, int value) return result; } +/* + * Returns nonzero on error. + */ static int -tput_cmd(int fd, TTY * saved_settings, int argc, char *argv[]) +tput_cmd(int fd, TTY * saved_settings, bool opt_x, int argc, char *argv[]) { NCURSES_CONST char *name; char *s; @@ -135,8 +153,12 @@ tput_cmd(int fd, TTY * saved_settings, int argc, char *argv[]) int intrchar = -1; /* new interrupt character */ int tkillchar = -1; /* new kill character */ - reset_start(stdout, is_reset, is_init); - reset_tty_settings(fd, saved_settings); + if (is_reset) { + reset_start(stdout, TRUE, FALSE); + reset_tty_settings(fd, saved_settings); + } else { + reset_start(stdout, FALSE, TRUE); + } #if HAVE_SIZECHANGE set_window_size(fd, &lines, &columns); @@ -161,7 +183,7 @@ tput_cmd(int fd, TTY * saved_settings, int argc, char *argv[]) retry: #endif if (strcmp(name, "clear") == 0) { - return clear_cmd(); + 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) { @@ -176,39 +198,37 @@ tput_cmd(int fd, TTY * saved_settings, int argc, char *argv[]) if ((np = _nc_find_entry(name, _nc_get_hash_table(termcap))) != 0) { switch (np->nte_type) { case BOOLEAN: - if (bool_from_termcap[np->nte_index]) - name = boolnames[np->nte_index]; + name = boolnames[np->nte_index]; break; case NUMBER: - if (num_from_termcap[np->nte_index]) - name = numnames[np->nte_index]; + name = numnames[np->nte_index]; break; case STRING: - if (str_from_termcap[np->nte_index]) - name = strnames[np->nte_index]; + name = strnames[np->nte_index]; break; } goto retry; } } #endif - 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 ignored; long numbers[1 + NUM_PARM]; char *strings[1 + NUM_PARM]; char *p_is_s[NUM_PARM]; + TParams paramType; /* 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++) { + for (k = 1; (k < argc) && (k <= NUM_PARM); k++) { char *tmp = 0; strings[k] = argv[k]; numbers[k] = strtol(argv[k], &tmp, 0); @@ -220,7 +240,21 @@ tput_cmd(int fd, TTY * saved_settings, int argc, char *argv[]) strings[k] = 0; } - switch (tparm_type(name)) { + paramType = tparm_type(name); +#if NCURSES_XNAMES + /* + * If the capability is an extended one, analyze the string. + */ + if (paramType == Numbers) { + struct name_table_entry const *entry_ptr; + entry_ptr = _nc_find_type_entry(name, STRING, FALSE); + if (entry_ptr == NULL) { + paramType = Other; + } + } +#endif + + switch (paramType) { case Num_Str: s = TPARM_2(s, numbers[1], strings[2]); break; @@ -228,8 +262,23 @@ tput_cmd(int fd, TTY * saved_settings, 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; + case Other: + /* FALLTHRU */ default: - (void) _nc_tparm_analyze(s, p_is_s, &ignored); + (void) _nc_tparm_analyze(NULL, 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), @@ -241,6 +290,7 @@ tput_cmd(int fd, TTY * saved_settings, int argc, char *argv[]) myParam(7), myParam(8), myParam(9)); +#undef myParam break; } } @@ -263,33 +313,46 @@ main(int argc, char **argv) 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: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_clear || is_reset || is_init) { + if (is_alias) { if (optind-- < argc) { argc -= optind; argv += optind; @@ -301,17 +364,17 @@ 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); + fd = save_tty_settings(&tty_settings, need_tty); if (setupterm(term, fd, &errret) != OK && errret <= 0) - quit(3, "unknown terminal \"%s\"", term); + quit(ErrTermType, "unknown terminal \"%s\"", term); if (cmdline) { - if ((argc <= 0) && !(is_clear || is_reset || is_init)) + if ((argc <= 0) && !is_alias) usage(); - ExitProgram(tput_cmd(fd, &tty_settings, argc, argv)); + ExitProgram(tput_cmd(fd, &tty_settings, opt_x, argc, argv)); } while (fgets(buf, sizeof(buf), stdin) != 0) { @@ -332,9 +395,9 @@ main(int argc, char **argv) argvec[argnum] = 0; if (argnum != 0 - && tput_cmd(fd, &tty_settings, 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; } }