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/*
* Mini more implementation for busybox
*
* Copyright (C) 1998 by Erik Andersen <andersee@debian.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
/* Turning this off makes things a bit smaller (and less pretty) */
#define BB_MORE_TERM
#include "internal.h"
#include <stdio.h>
#include <signal.h>
const char more_usage[] = "[file ...]";
#ifdef BB_MORE_TERM
#include <termios.h>
#include <signal.h>
#include <sys/ioctl.h>
FILE *cin;
struct termios initial_settings, new_settings;
void gotsig(int sig) {
tcsetattr(fileno(cin), TCSANOW, &initial_settings);
exit( TRUE);
}
#endif
extern int more_main(int argc, char **argv)
{
int c, lines=0, input=0;
int next_page=0, rows = 24;
#ifdef BB_MORE_TERM
int cols=79;
struct winsize win;
#endif
struct stat st;
FILE *file = stdin;
if ( strcmp(*argv,"--help")==0 || strcmp(*argv,"-h")==0 ) {
fprintf(stderr, "Usage: %s %s", *argv, more_usage);
exit(FALSE);
}
argc--;
argv++;
while (argc-- > 0) {
file = fopen(*argv, "r");
if (file == NULL) {
perror("Can't open file");
exit(FALSE);
}
fstat(fileno(file), &st);
fprintf(stderr, "hi\n");
#ifdef BB_MORE_TERM
cin = fopen("/dev/tty", "r");
tcgetattr(fileno(cin),&initial_settings);
new_settings = initial_settings;
new_settings.c_lflag &= ~ICANON;
new_settings.c_lflag &= ~ECHO;
tcsetattr(fileno(cin), TCSANOW, &new_settings);
(void) signal(SIGINT, gotsig);
ioctl(STDOUT_FILENO, TIOCGWINSZ, &win);
if (win.ws_row > 4) rows = win.ws_row - 2;
if (win.ws_col > 0) cols = win.ws_col - 1;
#endif
while ((c = getc(file)) != EOF) {
if ( next_page ) {
int len=0;
next_page = 0;
lines=0;
len = fprintf(stdout, "--More-- (%d%% of %ld bytes)%s",
(int) (100*( (double) ftell(file) / (double) st.st_size )),
st.st_size,
#ifdef BB_MORE_TERM
""
#else
"\n"
#endif
);
fflush(stdout);
input = getc( stdin);
#ifdef BB_MORE_TERM
/* Erase the "More" message */
while(len-- > 0)
putc('\b', stdout);
while(len++ < cols)
putc(' ', stdout);
while(len-- > 0)
putc('\b', stdout);
fflush(stdout);
#endif
}
if (input=='q')
goto end;
if (input==' ' && c == '\n' )
next_page = 1;
if ( c == '\n' && ++lines == (rows + 1) )
next_page = 1;
putc(c, stdout);
}
fclose(file);
fflush(stdout);
argc--;
argv++;
}
end:
#ifdef BB_MORE_TERM
gotsig(0);
#endif
exit(TRUE);
}
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