diff options
Diffstat (limited to 'coreutils')
-rw-r--r-- | coreutils/stty.c | 84 |
1 files changed, 41 insertions, 43 deletions
diff --git a/coreutils/stty.c b/coreutils/stty.c index cbd2c22..2175963 100644 --- a/coreutils/stty.c +++ b/coreutils/stty.c @@ -399,6 +399,7 @@ static const struct control_info control_info[] = { static const int NUM_control_info = (sizeof(control_info) / sizeof(struct control_info)); +#define EMT(t) ((enum mode_type)(t)) static const char * visible(unsigned int ch); static int recover_mode(char *arg, struct termios *mode); @@ -407,17 +408,17 @@ static int set_mode(const struct mode_info *info, int reversed, struct termios *mode); static speed_t string_to_baud(const char *arg); static tcflag_t* mode_type_flag(enum mode_type type, struct termios *mode); -static void display_all(struct termios *mode, int fd); -static void display_changed(struct termios *mode, int fd); -static void display_recoverable(struct termios *mode, int fd); +static void display_all(struct termios *mode); +static void display_changed(struct termios *mode); +static void display_recoverable(struct termios *mode); static void display_speed(struct termios *mode, int fancy); -static void display_window_size(int fancy, int fd); +static void display_window_size(int fancy); static void sane_mode(struct termios *mode); static void set_control_char(const struct control_info *info, const char *arg, struct termios *mode); static void set_speed(enum speed_setting type, const char *arg, struct termios *mode); -static void set_window_size(int rows, int cols, int fd); +static void set_window_size(int rows, int cols); static const char *device_name; @@ -473,7 +474,7 @@ extern int main(int argc, char **argv) #endif { struct termios mode; - void (*output_func)(struct termios *, int); + void (*output_func)(struct termios *); int optc; int require_set_attr; int speed_was_set; @@ -482,8 +483,6 @@ extern int main(int argc, char **argv) int k; int noargs = 1; char * file_name = NULL; - int fd; - output_func = display_changed; verbose_output = 0; @@ -539,25 +538,25 @@ extern int main(int argc, char **argv) int fdflags; device_name = file_name; - fd = bb_xopen(device_name, O_RDONLY | O_NONBLOCK); - if ((fdflags = fcntl(fd, F_GETFL)) == -1 - || fcntl(fd, F_SETFL, fdflags & ~O_NONBLOCK) < 0) + fclose(stdin); + bb_xopen(device_name, O_RDONLY | O_NONBLOCK); + if ((fdflags = fcntl(STDIN_FILENO, F_GETFL)) == -1 + || fcntl(STDIN_FILENO, F_SETFL, fdflags & ~O_NONBLOCK) < 0) perror_on_device("%s: couldn't reset non-blocking mode"); } else { - fd = 0; device_name = bb_msg_standard_input; } /* Initialize to all zeroes so there is no risk memcmp will report a spurious difference in an uninitialized portion of the structure. */ memset(&mode, 0, sizeof(mode)); - if (tcgetattr(fd, &mode)) + if (tcgetattr(STDIN_FILENO, &mode)) perror_on_device("%s"); if (verbose_output | recoverable_output | noargs) { max_col = screen_columns(); current_col = 0; - output_func(&mode, fd); + output_func(&mode); return EXIT_SUCCESS; } @@ -637,18 +636,17 @@ extern int main(int argc, char **argv) bb_error_msg_and_die("missing argument to `%s'", argv[k]); ++k; set_window_size((int) bb_xparse_number(argv[k], stty_suffixes), - -1, fd); + -1); } else if (STREQ(argv[k], "cols") || STREQ(argv[k], "columns")) { if (k == argc - 1) bb_error_msg_and_die("missing argument to `%s'", argv[k]); ++k; set_window_size(-1, - (int) bb_xparse_number(argv[k], stty_suffixes), - fd); + (int) bb_xparse_number(argv[k], stty_suffixes)); } else if (STREQ(argv[k], "size")) { max_col = screen_columns(); current_col = 0; - display_window_size(0, fd); + display_window_size(0); } #endif #ifdef HAVE_C_LINE @@ -677,7 +675,7 @@ extern int main(int argc, char **argv) if (require_set_attr) { struct termios new_mode; - if (tcsetattr(fd, TCSADRAIN, &mode)) + if (tcsetattr(STDIN_FILENO, TCSADRAIN, &mode)) perror_on_device("%s"); /* POSIX (according to Zlotnick's book) tcsetattr returns zero if @@ -690,7 +688,7 @@ extern int main(int argc, char **argv) /* Initialize to all zeroes so there is no risk memcmp will report a spurious difference in an uninitialized portion of the structure. */ memset(&new_mode, 0, sizeof(new_mode)); - if (tcgetattr(fd, &new_mode)) + if (tcgetattr(STDIN_FILENO, &new_mode)) perror_on_device("%s"); /* Normally, one shouldn't use memcmp to compare structures that @@ -731,7 +729,7 @@ set_mode(const struct mode_info *info, int reversed, struct termios *mode) if (reversed && (info->flags & REV) == 0) return 0; - bitsp = mode_type_flag(info->type, mode); + bitsp = mode_type_flag(EMT(info->type), mode); if (bitsp == NULL) { /* Combination mode. */ @@ -922,10 +920,10 @@ set_speed(enum speed_setting type, const char *arg, struct termios *mode) baud = string_to_baud(arg); - if (type != output_speed) { /* either input or both */ + if (type != output_speed) { /* either input or both */ cfsetispeed(mode, baud); } - if (type != input_speed) { /* either output or both */ + if (type != input_speed) { /* either output or both */ cfsetospeed(mode, baud); } } @@ -940,11 +938,11 @@ static int get_win_size(int fd, struct winsize *win) } static void -set_window_size(int rows, int cols, int fd) +set_window_size(int rows, int cols) { struct winsize win; - if (get_win_size(fd, &win)) { + if (get_win_size(STDIN_FILENO, &win)) { if (errno != EINVAL) perror_on_device("%s"); memset(&win, 0, sizeof(win)); @@ -970,24 +968,24 @@ set_window_size(int rows, int cols, int fd) win.ws_row = win.ws_col = 1; - if ((ioctl(fd, TIOCSWINSZ, (char *) &win) != 0) - || (ioctl(fd, TIOCSSIZE, (char *) &ttysz) != 0)) { + if ((ioctl(STDIN_FILENO, TIOCSWINSZ, (char *) &win) != 0) + || (ioctl(STDIN_FILENO, TIOCSSIZE, (char *) &ttysz) != 0)) { perror_on_device("%s"); } return; } # endif - if (ioctl(fd, TIOCSWINSZ, (char *) &win)) + if (ioctl(STDIN_FILENO, TIOCSWINSZ, (char *) &win)) perror_on_device("%s"); } -static void display_window_size(int fancy, int fd) +static void display_window_size(int fancy) { const char *fmt_str = "%s" "\0" "%s: no size information for this device"; struct winsize win; - if (get_win_size(fd, &win)) { + if (get_win_size(STDIN_FILENO, &win)) { if ((errno != EINVAL) || ((fmt_str += 2), !fancy)) { perror_on_device(fmt_str); } @@ -1040,7 +1038,7 @@ static tcflag_t *mode_type_flag(enum mode_type type, struct termios *mode) return NULL; } -static void display_changed(struct termios *mode, int fd) +static void display_changed(struct termios *mode) { int i; int empty_line; @@ -1086,16 +1084,16 @@ static void display_changed(struct termios *mode, int fd) for (i = 0; i < NUM_mode_info; ++i) { if (mode_info[i].flags & OMIT) continue; - if (mode_info[i].type != prev_type) { + if (EMT(mode_info[i].type) != prev_type) { if (empty_line == 0) { putchar('\n'); current_col = 0; empty_line = 1; } - prev_type = mode_info[i].type; + prev_type = EMT(mode_info[i].type); } - bitsp = mode_type_flag(mode_info[i].type, mode); + bitsp = mode_type_flag(EMT(mode_info[i].type), mode); mask = mode_info[i].mask ? mode_info[i].mask : mode_info[i].bits; if ((*bitsp & mask) == mode_info[i].bits) { if (mode_info[i].flags & SANE_UNSET) { @@ -1115,7 +1113,7 @@ static void display_changed(struct termios *mode, int fd) } static void -display_all(struct termios *mode, int fd) +display_all(struct termios *mode) { int i; tcflag_t *bitsp; @@ -1124,7 +1122,7 @@ display_all(struct termios *mode, int fd) display_speed(mode, 1); #ifdef TIOCGWINSZ - display_window_size(1, fd); + display_window_size(1); #endif #ifdef HAVE_C_LINE wrapf("line = %d;", mode->c_line); @@ -1158,13 +1156,13 @@ display_all(struct termios *mode, int fd) for (i = 0; i < NUM_mode_info; ++i) { if (mode_info[i].flags & OMIT) continue; - if (mode_info[i].type != prev_type) { + if (EMT(mode_info[i].type) != prev_type) { putchar('\n'); current_col = 0; - prev_type = mode_info[i].type; + prev_type = EMT(mode_info[i].type); } - bitsp = mode_type_flag(mode_info[i].type, mode); + bitsp = mode_type_flag(EMT(mode_info[i].type), mode); mask = mode_info[i].mask ? mode_info[i].mask : mode_info[i].bits; if ((*bitsp & mask) == mode_info[i].bits) wrapf("%s", mode_info[i].name); @@ -1184,7 +1182,7 @@ static void display_speed(struct termios *mode, int fancy) ospeed = ispeed = cfgetispeed(mode); if (ispeed == 0 || ispeed == (ospeed = cfgetospeed(mode))) { - ispeed = ospeed; /* in case ispeed was 0 */ + ispeed = ospeed; /* in case ispeed was 0 */ fmt_str += 43; } if (fancy) { @@ -1195,7 +1193,7 @@ static void display_speed(struct termios *mode, int fancy) current_col = 0; } -static void display_recoverable(struct termios *mode, int fd) +static void display_recoverable(struct termios *mode) { int i; @@ -1257,11 +1255,11 @@ static void sane_mode(struct termios *mode) for (i = 0; i < NUM_mode_info; ++i) { if (mode_info[i].flags & SANE_SET) { - bitsp = mode_type_flag(mode_info[i].type, mode); + bitsp = mode_type_flag(EMT(mode_info[i].type), mode); *bitsp = (*bitsp & ~((unsigned long)mode_info[i].mask)) | mode_info[i].bits; } else if (mode_info[i].flags & SANE_UNSET) { - bitsp = mode_type_flag(mode_info[i].type, mode); + bitsp = mode_type_flag(EMT(mode_info[i].type), mode); *bitsp = *bitsp & ~((unsigned long)mode_info[i].mask) & ~mode_info[i].bits; } |