2 * Mini more implementation for busybox
4 * Copyright (C) 1998 by Erik Andersen <andersee@debian.org>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 /* Turning this off makes things a bit smaller (and less pretty) */
33 const char more_usage[] = "[file ...]";
39 #include <sys/ioctl.h>
42 struct termios initial_settings, new_settings;
44 void gotsig(int sig) {
45 tcsetattr(fileno(cin), TCSANOW, &initial_settings);
50 extern int more_main(int argc, char **argv)
52 int c, lines=0, input;
53 int next_page=0, rows = 24;
61 if ( strcmp(*argv,"--help")==0 || strcmp(*argv,"-h")==0 ) {
62 fprintf(stderr, "Usage: %s %s", *argv, more_usage);
69 file = fopen(*argv, "r");
71 perror("Can't open file");
74 fstat(fileno(file), &st);
75 fprintf(stderr, "hi\n");
78 cin = fopen("/dev/tty", "r");
79 tcgetattr(fileno(cin),&initial_settings);
80 new_settings = initial_settings;
81 new_settings.c_lflag &= ~ICANON;
82 new_settings.c_lflag &= ~ECHO;
83 tcsetattr(fileno(cin), TCSANOW, &new_settings);
85 (void) signal(SIGINT, gotsig);
87 ioctl(STDOUT_FILENO, TIOCGWINSZ, &win);
88 if (win.ws_row > 4) rows = win.ws_row - 2;
89 if (win.ws_col > 0) cols = win.ws_col - 1;
93 while ((c = getc(file)) != EOF) {
98 len = fprintf(stdout, "--More-- (%d%% of %ld bytes)%s",
99 (int) (100*( (double) ftell(file) / (double) st.st_size )),
109 input = getc( stdin);
112 /* Erase the "More" message */
125 if (input==' ' && c == '\n' )
127 if ( c == '\n' && ++lines == (rows + 1) )