diff options
Diffstat (limited to 'coreutils/stty.c')
| -rw-r--r-- | coreutils/stty.c | 58 |
1 files changed, 30 insertions, 28 deletions
diff --git a/coreutils/stty.c b/coreutils/stty.c index 7206f2d..3ce8bf3 100644 --- a/coreutils/stty.c +++ b/coreutils/stty.c @@ -901,19 +901,21 @@ static void set_control_char_or_die(const struct control_info *info, mode->c_cc[info->offset] = value; } -#define STTY_require_set_attr (1<<0) -#define STTY_speed_was_set (1<<1) -#define STTY_verbose_output (1<<2) -#define STTY_recoverable_output (1<<3) -#define STTY_noargs (1<<4) +#define STTY_require_set_attr (1<<0) +#define STTY_speed_was_set (1<<1) +#define STTY_verbose_output (1<<2) +#define STTY_recoverable_output (1<<3) +#define STTY_noargs (1<<4) int stty_main(int argc, char **argv) { struct termios mode; void (*output_func)(const struct termios *, const int); const char *file_name = NULL; - int k; int display_all = 0; - option_mask32 = STTY_noargs; + int stty_state; + int k; + + stty_state = STTY_noargs; output_func = do_display; /* First pass: only parse/verify command line params */ @@ -931,7 +933,7 @@ int stty_main(int argc, char **argv) if (mp) { if (!(mp->flags & REV)) goto invalid_argument; - option_mask32 &= ~STTY_noargs; + stty_state &= ~STTY_noargs; continue; } /* It is an option - parse it */ @@ -939,12 +941,12 @@ int stty_main(int argc, char **argv) while (arg[++i]) { switch (arg[i]) { case 'a': - option_mask32 |= STTY_verbose_output; + stty_state |= STTY_verbose_output; output_func = do_display; display_all = 1; break; case 'g': - option_mask32 |= STTY_recoverable_output; + stty_state |= STTY_recoverable_output; output_func = display_recoverable; break; case 'F': @@ -971,7 +973,7 @@ end_option: mp = find_mode(arg); if (mp) { - option_mask32 &= ~STTY_noargs; + stty_state &= ~STTY_noargs; continue; } @@ -981,7 +983,7 @@ end_option: bb_error_msg_and_die(bb_msg_requires_arg, arg); /* called for the side effect of xfunc death only */ set_control_char_or_die(cp, argnext, &mode); - option_mask32 &= ~STTY_noargs; + stty_state &= ~STTY_noargs; ++k; continue; } @@ -1024,16 +1026,16 @@ end_option: invalid_argument: bb_error_msg_and_die("invalid argument '%s'", arg); } - option_mask32 &= ~STTY_noargs; + stty_state &= ~STTY_noargs; } /* Specifying both -a and -g is an error */ - if ((option_mask32 & (STTY_verbose_output | STTY_recoverable_output)) == + if ((stty_state & (STTY_verbose_output | STTY_recoverable_output)) == (STTY_verbose_output | STTY_recoverable_output)) bb_error_msg_and_die("verbose and stty-readable output styles are mutually exclusive"); /* Specifying -a or -g with non-options is an error */ - if (!(option_mask32 & STTY_noargs) && - (option_mask32 & (STTY_verbose_output | STTY_recoverable_output))) + if (!(stty_state & STTY_noargs) && + (stty_state & (STTY_verbose_output | STTY_recoverable_output))) bb_error_msg_and_die("modes may not be set when specifying an output style"); /* Now it is safe to start doing things */ @@ -1057,7 +1059,7 @@ invalid_argument: if (tcgetattr(STDIN_FILENO, &mode)) perror_on_device_and_die("%s"); - if (option_mask32 & (STTY_verbose_output | STTY_recoverable_output | STTY_noargs)) { + if (stty_state & (STTY_verbose_output | STTY_recoverable_output | STTY_noargs)) { get_terminal_width_height(STDOUT_FILENO, &max_col, NULL); output_func(&mode, display_all); return EXIT_SUCCESS; @@ -1076,7 +1078,7 @@ invalid_argument: mp = find_mode(arg+1); if (mp) { set_mode(mp, 1 /* reversed */, &mode); - option_mask32 |= STTY_require_set_attr; + stty_state |= STTY_require_set_attr; } /* It is an option - already parsed. Skip it */ continue; @@ -1085,7 +1087,7 @@ invalid_argument: mp = find_mode(arg); if (mp) { set_mode(mp, 0 /* non-reversed */, &mode); - option_mask32 |= STTY_require_set_attr; + stty_state |= STTY_require_set_attr; continue; } @@ -1093,7 +1095,7 @@ invalid_argument: if (cp) { ++k; set_control_char_or_die(cp, argnext, &mode); - option_mask32 |= STTY_require_set_attr; + stty_state |= STTY_require_set_attr; continue; } @@ -1106,7 +1108,7 @@ invalid_argument: #ifdef HAVE_C_LINE case param_line: mode.c_line = xatoul_sfx(argnext, stty_suffixes); - option_mask32 |= STTY_require_set_attr; + stty_state |= STTY_require_set_attr; break; #endif #ifdef TIOCGWINSZ @@ -1125,24 +1127,24 @@ invalid_argument: break; case param_ispeed: set_speed_or_die(input_speed, argnext, &mode); - option_mask32 |= (STTY_require_set_attr | STTY_speed_was_set); + stty_state |= (STTY_require_set_attr | STTY_speed_was_set); break; case param_ospeed: set_speed_or_die(output_speed, argnext, &mode); - option_mask32 |= (STTY_require_set_attr | STTY_speed_was_set); + stty_state |= (STTY_require_set_attr | STTY_speed_was_set); break; default: if (recover_mode(arg, &mode) == 1) - option_mask32 |= STTY_require_set_attr; + stty_state |= STTY_require_set_attr; else /* true: if (tty_value_to_baud(xatou(arg)) != (speed_t) -1) */{ set_speed_or_die(both_speeds, arg, &mode); - option_mask32 |= (STTY_require_set_attr | STTY_speed_was_set); + stty_state |= (STTY_require_set_attr | STTY_speed_was_set); } /* else - impossible (caught in the first pass): bb_error_msg_and_die("invalid argument '%s'", arg); */ } } - if (option_mask32 & STTY_require_set_attr) { + if (stty_state & STTY_require_set_attr) { struct termios new_mode; if (tcsetattr(STDIN_FILENO, TCSADRAIN, &mode)) @@ -1173,8 +1175,8 @@ invalid_argument: error for a true failure to set the baud rate */ new_mode.c_cflag &= (~CIBAUD); - if (option_mask32 & STTY_speed_was_set || - memcmp(&mode, &new_mode, sizeof(mode)) != 0) + if ((stty_state & STTY_speed_was_set) + || memcmp(&mode, &new_mode, sizeof(mode)) != 0) #endif perror_on_device_and_die("%s: cannot perform all requested operations"); } |