/**************************************************************************** * Copyright (c) 1998-2015,2016 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 * * "Software"), to deal in the Software without restriction, including * * without limitation the rights to use, copy, modify, merge, publish, * * distribute, distribute with modifications, sublicense, and/or sell * * copies of the Software, and to permit persons to whom the Software is * * furnished to do so, subject to the following conditions: * * * * The above copyright notice and this permission notice shall be included * * in all copies or substantial portions of the Software. * * * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * * * * Except as contained in this notice, the name(s) of the above copyright * * holders shall not be used in advertising or otherwise to promote the * * sale, use or other dealings in this Software without prior written * * authorization. * ****************************************************************************/ /**************************************************************************** * Author: Zeyd M. Ben-Halim 1992,1995 * * and: Eric S. Raymond * * and: Thomas E. Dickey 1996-on * ****************************************************************************/ /* * tput.c -- shellscript access to terminal capabilities * * by Eric S. Raymond , portions based on code from * Ross Ridge's mytinfo package. */ #include #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 $") #define PUTS(s) fputs(s, 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,...) { va_list argp; va_start(argp, fmt); fprintf(stderr, "%s: ", prg_name); vfprintf(stderr, fmt, argp); fprintf(stderr, "\n"); va_end(argp); ExitProgram(status); } static void usage(void) { fprintf(stderr, "usage: %s [-V] [-S] [-T term] capname\n", prg_name); ExitProgram(EXIT_FAILURE); } static char * check_aliases(char *name, bool program) { 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 exit_code(int token, int value) { 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; } static int tput_cmd(int fd, TTY * saved_settings, 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 */ reset_start(stdout, is_reset, is_init); reset_tty_settings(fd, saved_settings); #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(); } 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(); } 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: if (bool_from_termcap[np->nte_index]) name = boolnames[np->nte_index]; break; case NUMBER: if (num_from_termcap[np->nte_index]) name = numnames[np->nte_index]; break; case STRING: if (str_from_termcap[np->nte_index]) name = strnames[np->nte_index]; break; } goto retry; } } #endif quit(4, "unknown terminfo capability '%s'", name); } else if (s != ABSENT_STRING) { 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++) { 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; } switch (tparm_type(name)) { case Num_Str: s = TPARM_2(s, numbers[1], strings[2]); break; case Num_Str_Str: s = TPARM_3(s, numbers[1], strings[2], strings[3]); break; case Numbers: default: (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)); break; } } /* use putp() in order to perform padding */ putp(s); return exit_code(STRING, 0); } return exit_code(STRING, 1); } 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; prg_name = check_aliases(_nc_rootname(argv[0]), TRUE); term = getenv("TERM"); while ((c = getopt(argc, argv, "ST:V")) != -1) { switch (c) { case 'S': cmdline = FALSE; break; case 'T': use_env(FALSE); term = optarg; break; case 'V': puts(curses_version()); ExitProgram(EXIT_SUCCESS); default: usage(); /* NOTREACHED */ } } /* * Modify the argument list to omit the options we processed. */ if (is_clear || is_reset || is_init) { if (optind-- < argc) { argc -= optind; argv += optind; } argv[0] = prg_name; } else { argc -= optind; argv += optind; } if (term == 0 || *term == '\0') quit(2, "No value for $TERM and no -T specified"); fd = save_tty_settings(&tty_settings); if (setupterm(term, fd, &errret) != OK && errret <= 0) quit(3, "unknown terminal \"%s\"", term); if (cmdline) { if ((argc <= 0) && !(is_clear || is_reset || is_init)) usage(); ExitProgram(tput_cmd(fd, &tty_settings, 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 (argnum != 0 && tput_cmd(fd, &tty_settings, argnum, argvec) != 0) { if (result == 0) result = 4; /* will return value >4 */ ++result; } } ExitProgram(result); }