X-Git-Url: https://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=progs%2Ftset.c;h=6ce3f50b8f49986b9e60199b02b6c95c3523a289;hp=03c8ffde33afa611a7391dbc012ef29f8dda23c4;hb=5a9c046f10f72b47ad32801a8e54fe3d05aa8051;hpb=46722468f47c2b77b3987729b4bcf2321cccfd01 diff --git a/progs/tset.c b/progs/tset.c index 03c8ffde..6ce3f50b 100644 --- a/progs/tset.c +++ b/progs/tset.c @@ -1,5 +1,5 @@ /**************************************************************************** - * Copyright (c) 1998-2001,2002 Free Software Foundation, Inc. * + * Copyright (c) 1998-2005,2006 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 +29,7 @@ /**************************************************************************** * Author: Zeyd M. Ben-Halim 1992,1995 * * and: Eric S. Raymond * + * and: Thomas E. Dickey 1996-on * ****************************************************************************/ /* @@ -99,11 +100,10 @@ char *ttyname(int fd); #include #endif -#include /* for bool typedef */ #include #include -MODULE_ID("$Id: tset.c,v 0.53 2002/08/24 23:18:16 tom Exp $") +MODULE_ID("$Id: tset.c,v 1.67 2006/09/16 17:51:10 tom Exp $") extern char **environ; @@ -114,6 +114,9 @@ const char *_nc_progname = "tset"; static TTY mode, oldmode, original; +static bool opt_c; /* set control-chars */ +static bool opt_w; /* set window-size */ + static bool can_restore = FALSE; static bool isreset = FALSE; /* invoked as reset */ static int terasechar = -1; /* new erase character */ @@ -142,7 +145,7 @@ exit_error(void) SET_TTY(STDERR_FILENO, &original); (void) fprintf(stderr, "\n"); fflush(stderr); - exit(EXIT_FAILURE); + ExitProgram(EXIT_FAILURE); /* NOTREACHED */ } @@ -151,7 +154,7 @@ err(const char *fmt,...) { va_list ap; va_start(ap, fmt); - (void) fprintf(stderr, "tset: "); + (void) fprintf(stderr, "%s: ", _nc_progname); (void) vfprintf(stderr, fmt, ap); va_end(ap); exit_error(); @@ -162,7 +165,15 @@ static void failed(const char *msg) { char temp[BUFSIZ]; - perror(strncat(strcpy(temp, "tset: "), msg, sizeof(temp) - 10)); + unsigned len = strlen(_nc_progname) + 2; + + if (len < sizeof(temp) - 12) { + strcpy(temp, _nc_progname); + strcat(temp, ": "); + } else { + strcpy(temp, "tset: "); + } + perror(strncat(temp, msg, sizeof(temp) - strlen(temp) - 2)); exit_error(); /* NOTREACHED */ } @@ -350,7 +361,7 @@ add_mapping(const char *port, char *arg) char *base = 0; copy = strdup(arg); - mapp = malloc(sizeof(MAP)); + mapp = (MAP *) malloc(sizeof(MAP)); if (copy == 0 || mapp == 0) failed("malloc"); mapp->next = 0; @@ -574,7 +585,7 @@ get_termcap_entry(char *userarg) * real entry from /etc/termcap. This prevents us from being fooled * by out of date stuff in the environment. */ - found:if ((p = getenv("TERMCAP")) != 0 && *p != '/') { + found:if ((p = getenv("TERMCAP")) != 0 && !_nc_is_abs_path(p)) { /* 'unsetenv("TERMCAP")' is not portable. * The 'environ' array is better. */ @@ -603,13 +614,13 @@ get_termcap_entry(char *userarg) while (setupterm((NCURSES_CONST char *) ttype, STDOUT_FILENO, &errret) != OK) { if (errret == 0) { - (void) fprintf(stderr, "tset: unknown terminal type %s\n", - ttype); + (void) fprintf(stderr, "%s: unknown terminal type %s\n", + _nc_progname, ttype); ttype = 0; } else { (void) fprintf(stderr, - "tset: can't initialize terminal type %s (error %d)\n", - ttype, errret); + "%s: can't initialize terminal type %s (error %d)\n", + _nc_progname, ttype, errret); ttype = 0; } ttype = askuser(ttype); @@ -627,8 +638,10 @@ get_termcap_entry(char *userarg) **************************************************************************/ /* some BSD systems have these built in, some systems are missing - * one or more definitions. The safest solution is to override. + * one or more definitions. The safest solution is to override unless the + * commonly-altered ones are defined. */ +#if !(defined(CERASE) && defined(CINTR) && defined(CKILL) && defined(CQUIT)) #undef CEOF #undef CERASE #undef CINTR @@ -639,20 +652,49 @@ get_termcap_entry(char *userarg) #undef CSTART #undef CSTOP #undef CSUSP +#endif /* control-character defaults */ +#ifndef CEOF #define CEOF CTRL('D') +#endif +#ifndef CERASE #define CERASE CTRL('H') +#endif +#ifndef CINTR #define CINTR 127 /* ^? */ +#endif +#ifndef CKILL #define CKILL CTRL('U') +#endif +#ifndef CLNEXT #define CLNEXT CTRL('v') +#endif +#ifndef CRPRNT #define CRPRNT CTRL('r') +#endif +#ifndef CQUIT #define CQUIT CTRL('\\') +#endif +#ifndef CSTART #define CSTART CTRL('Q') +#endif +#ifndef CSTOP #define CSTOP CTRL('S') +#endif +#ifndef CSUSP #define CSUSP CTRL('Z') +#endif + +#if defined(_POSIX_VDISABLE) +#define DISABLED(val) (((_POSIX_VDISABLE != -1) \ + && ((val) == _POSIX_VDISABLE)) \ + || ((val) <= 0)) +#else +#define DISABLED(val) ((int)(val) <= 0) +#endif -#define CHK(val, dft) ((int)val <= 0 ? dft : val) +#define CHK(val, dft) (DISABLED(val) ? dft : val) static bool set_tabs(void); @@ -804,13 +846,13 @@ static void set_control_chars(void) { #ifdef TERMIOS - if (mode.c_cc[VERASE] == 0 || terasechar >= 0) + if (DISABLED(mode.c_cc[VERASE]) || terasechar >= 0) mode.c_cc[VERASE] = terasechar >= 0 ? terasechar : default_erase(); - if (mode.c_cc[VINTR] == 0 || intrchar >= 0) + if (DISABLED(mode.c_cc[VINTR]) || intrchar >= 0) mode.c_cc[VINTR] = intrchar >= 0 ? intrchar : CINTR; - if (mode.c_cc[VKILL] == 0 || tkillchar >= 0) + if (DISABLED(mode.c_cc[VKILL]) || tkillchar >= 0) mode.c_cc[VKILL] = tkillchar >= 0 ? tkillchar : CKILL; #endif } @@ -936,7 +978,7 @@ set_init(void) * Return TRUE if we set any tab stops, FALSE if not. */ static bool -set_tabs() +set_tabs(void) { if (set_tab && clear_all_tabs) { int c; @@ -949,10 +991,10 @@ set_tabs() * used to try a bunch of half-clever things * with cup and hpa, for an average saving of * somewhat less than two character times per - * tab stop, less that .01 sec at 2400cps. We + * tab stop, less than .01 sec at 2400cps. We * lost all this cruft because it seemed to be * introducing some odd bugs. - * ----------12345678----------- */ + * -----------12345678----------- */ (void) fputs(" ", stderr); tputs(set_tab, 0, outc); } @@ -986,11 +1028,13 @@ report(const char *name, int which, unsigned def) (void) fprintf(stderr, "%s %s ", name, older == newer ? "is" : "set to"); + if (DISABLED(newer)) + (void) fprintf(stderr, "undef.\n"); /* * Check 'delete' before 'backspace', since the key_backspace value * is ambiguous. */ - if (newer == 0177) + else if (newer == 0177) (void) fprintf(stderr, "delete.\n"); else if ((p = key_backspace) != 0 && newer == (unsigned char) p[0] @@ -998,9 +1042,9 @@ report(const char *name, int which, unsigned def) (void) fprintf(stderr, "backspace.\n"); else if (newer < 040) { newer ^= 0100; - (void) fprintf(stderr, "control-%c (^%c).\n", newer, newer); + (void) fprintf(stderr, "control-%c (^%c).\n", UChar(newer), UChar(newer)); } else - (void) fprintf(stderr, "%c.\n", newer); + (void) fprintf(stderr, "%c.\n", UChar(newer)); } #endif @@ -1039,10 +1083,28 @@ obsolete(char **argv) } static void -usage(const char *pname) +usage(void) { - (void) fprintf(stderr, - "usage: %s [-IQVrs] [-] [-e ch] [-i ch] [-k ch] [-m mapping] [terminal]", pname); + static const char *tbl[] = + { + "" + ,"Options:" + ," -c set control characters" + ," -e ch erase character" + ," -I no initialization strings" + ," -i ch interrupt character" + ," -k ch kill character" + ," -m mapping map identifier to type" + ," -Q do not output control key settings" + ," -r display term on stderr" + ," -s output TERM set command" + ," -V print curses-version" + ," -w set window-size" + }; + unsigned n; + (void) fprintf(stderr, "Usage: %s [options] [terminal]\n", _nc_progname); + for (n = 0; n < sizeof(tbl) / sizeof(tbl[0]); ++n) + fprintf(stderr, "%s\n", tbl[n]); exit_error(); /* NOTREACHED */ } @@ -1065,28 +1127,12 @@ main(int argc, char **argv) const char *p; const char *ttype; - if (GET_TTY(STDERR_FILENO, &mode) < 0) - failed("standard error"); - can_restore = TRUE; - original = oldmode = mode; -#ifdef TERMIOS - ospeed = cfgetospeed(&mode); -#else - ospeed = mode.sg_ospeed; -#endif - - p = _nc_rootname(*argv); - if (!strcmp(p, PROG_RESET)) { - isreset = TRUE; - reset_mode(); - } - obsolete(argv); noinit = noset = quiet = Sflag = sflag = showterm = 0; - while ((ch = getopt(argc, argv, "a:d:e:Ii:k:m:np:qQSrsV")) != EOF) { + while ((ch = getopt(argc, argv, "a:cd:e:Ii:k:m:np:qQSrsVw")) != EOF) { switch (ch) { - case 'q': /* display term only */ - noset = 1; + case 'c': /* set control-chars */ + opt_c = TRUE; break; case 'a': /* OBSOLETE: map identifier to type */ add_mapping("arpanet", optarg); @@ -1117,28 +1163,54 @@ main(int argc, char **argv) case 'Q': /* don't output control key settings */ quiet = 1; break; - case 'S': /* OBSOLETE: output TERM & TERMCAP */ - Sflag = 1; + case 'q': /* display term only */ + noset = 1; break; case 'r': /* display term on stderr */ showterm = 1; break; + case 'S': /* OBSOLETE: output TERM & TERMCAP */ + Sflag = 1; + break; case 's': /* output TERM set command */ sflag = 1; break; - case 'V': + case 'V': /* print curses-version */ puts(curses_version()); - return EXIT_SUCCESS; + ExitProgram(EXIT_SUCCESS); + case 'w': /* set window-size */ + opt_w = TRUE; + break; case '?': default: - usage(*argv); + usage(); } } + + _nc_progname = _nc_rootname(*argv); argc -= optind; argv += optind; if (argc > 1) - usage(*argv); + usage(); + + if (!opt_c && !opt_w) + opt_c = opt_w = TRUE; + + if (GET_TTY(STDERR_FILENO, &mode) < 0) + failed("standard error"); + can_restore = TRUE; + original = oldmode = mode; +#ifdef TERMIOS + ospeed = cfgetospeed(&mode); +#else + ospeed = mode.sg_ospeed; +#endif + + if (!strcmp(_nc_progname, PROG_RESET)) { + isreset = TRUE; + reset_mode(); + } ttype = get_termcap_entry(*argv); @@ -1147,24 +1219,28 @@ main(int argc, char **argv) tlines = lines; #if defined(TIOCGWINSZ) && defined(TIOCSWINSZ) - /* Set window size */ - (void) ioctl(STDERR_FILENO, TIOCGWINSZ, &win); - if (win.ws_row == 0 && win.ws_col == 0 && - tlines > 0 && tcolumns > 0) { - win.ws_row = tlines; - win.ws_col = tcolumns; - (void) ioctl(STDERR_FILENO, TIOCSWINSZ, &win); + if (opt_w) { + /* Set window size */ + (void) ioctl(STDERR_FILENO, TIOCGWINSZ, &win); + if (win.ws_row == 0 && win.ws_col == 0 && + tlines > 0 && tcolumns > 0) { + win.ws_row = tlines; + win.ws_col = tcolumns; + (void) ioctl(STDERR_FILENO, TIOCSWINSZ, &win); + } } #endif - set_control_chars(); - set_conversions(); + if (opt_c) { + set_control_chars(); + set_conversions(); - if (!noinit) - set_init(); + if (!noinit) + set_init(); - /* Set the modes if they've changed. */ - if (memcmp(&mode, &oldmode, sizeof(mode))) { - SET_TTY(STDERR_FILENO, &mode); + /* Set the modes if they've changed. */ + if (memcmp(&mode, &oldmode, sizeof(mode))) { + SET_TTY(STDERR_FILENO, &mode); + } } } @@ -1183,8 +1259,8 @@ main(int argc, char **argv) #ifdef TERMIOS if (!quiet) { report("Erase", VERASE, CERASE); - report("Kill", VKILL, CINTR); - report("Interrupt", VINTR, CKILL); + report("Kill", VKILL, CKILL); + report("Interrupt", VINTR, CINTR); } #endif } @@ -1193,19 +1269,21 @@ main(int argc, char **argv) err("The -S option is not supported under terminfo."); if (sflag) { + int len; + char *var; + char *leaf; /* * Figure out what shell we're using. A hack, we look for an * environmental variable SHELL ending in "csh". */ - if ((p = getenv("SHELL")) != 0 - && !strcmp(p + strlen(p) - 3, "csh")) + if ((var = getenv("SHELL")) != 0 + && ((len = strlen(leaf = _nc_basename(var))) >= 3) + && !strcmp(leaf + len - 3, "csh")) p = "set noglob;\nsetenv TERM %s;\nunset noglob;\n"; else p = "TERM=%s;\n"; (void) printf(p, ttype); } - return EXIT_SUCCESS; + ExitProgram(EXIT_SUCCESS); } - -/* tset.c ends here */