Eric Andersen | 4bea32a | 1999-10-06 00:30:51 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Mini more implementation for busybox |
| 3 | * |
| 4 | * Copyright (C) 1998 by Erik Andersen <andersee@debian.org> |
| 5 | * |
| 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. |
| 10 | * |
| 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. |
| 15 | * |
| 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 |
| 19 | * |
| 20 | */ |
| 21 | |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 22 | #include "internal.h" |
| 23 | #include <stdio.h> |
Eric Andersen | 4bea32a | 1999-10-06 00:30:51 +0000 | [diff] [blame] | 24 | #include <signal.h> |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 25 | |
Eric Andersen | 4bea32a | 1999-10-06 00:30:51 +0000 | [diff] [blame] | 26 | const char more_usage[] = "[file ...]"; |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 27 | |
Eric Andersen | 9d3aba7 | 1999-10-06 09:04:55 +0000 | [diff] [blame^] | 28 | //#define ERASE_STUFF |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 29 | |
Eric Andersen | 4bea32a | 1999-10-06 00:30:51 +0000 | [diff] [blame] | 30 | extern int more_main(int argc, char **argv) |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 31 | { |
Eric Andersen | 4bea32a | 1999-10-06 00:30:51 +0000 | [diff] [blame] | 32 | int c, lines=0; |
Eric Andersen | 9d3aba7 | 1999-10-06 09:04:55 +0000 | [diff] [blame^] | 33 | int next_page=0, rows = 24; |
| 34 | #ifdef ERASE_STUFF |
| 35 | int cols=79; |
| 36 | #endif |
Eric Andersen | 4bea32a | 1999-10-06 00:30:51 +0000 | [diff] [blame] | 37 | struct stat st; |
| 38 | FILE *file = stdin; |
| 39 | |
| 40 | if ( strcmp(*argv,"--help")==0 || strcmp(*argv,"-h")==0 ) { |
| 41 | fprintf(stderr, "Usage: %s %s", *argv, more_usage); |
| 42 | return(FALSE); |
| 43 | } |
| 44 | argc--; |
| 45 | argv++; |
| 46 | |
| 47 | while (argc-- > 0) { |
Eric Andersen | 9d3aba7 | 1999-10-06 09:04:55 +0000 | [diff] [blame^] | 48 | file = fopen(*argv, "r"); |
Eric Andersen | 4bea32a | 1999-10-06 00:30:51 +0000 | [diff] [blame] | 49 | if (file == NULL) { |
Eric Andersen | 9d3aba7 | 1999-10-06 09:04:55 +0000 | [diff] [blame^] | 50 | perror("Can't open file"); |
Eric Andersen | 4bea32a | 1999-10-06 00:30:51 +0000 | [diff] [blame] | 51 | return(FALSE); |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 52 | } |
Eric Andersen | 4bea32a | 1999-10-06 00:30:51 +0000 | [diff] [blame] | 53 | fstat(fileno(file), &st); |
Eric Andersen | 9d3aba7 | 1999-10-06 09:04:55 +0000 | [diff] [blame^] | 54 | fprintf(stderr, "hi\n"); |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 55 | |
Eric Andersen | 4bea32a | 1999-10-06 00:30:51 +0000 | [diff] [blame] | 56 | while ((c = getc(file)) != EOF) { |
| 57 | if ( next_page ) { |
| 58 | int len=0; |
| 59 | next_page = 0; |
| 60 | lines=0; |
Eric Andersen | 9d3aba7 | 1999-10-06 09:04:55 +0000 | [diff] [blame^] | 61 | len = fprintf(stdout, "--More-- (%d%% of %ld bytes)", |
Eric Andersen | 4bea32a | 1999-10-06 00:30:51 +0000 | [diff] [blame] | 62 | (int) (100*( (double) ftell(file) / (double) st.st_size )), |
| 63 | st.st_size); |
| 64 | fflush(stdout); |
| 65 | getc( stdin); |
Eric Andersen | 9d3aba7 | 1999-10-06 09:04:55 +0000 | [diff] [blame^] | 66 | #ifdef ERASE_STUFF |
| 67 | /* Try to erase the "More" message */ |
Eric Andersen | 4bea32a | 1999-10-06 00:30:51 +0000 | [diff] [blame] | 68 | while(len-- > 0) |
| 69 | putc('\b', stdout); |
| 70 | while(len++ < cols) |
Eric Andersen | 9d3aba7 | 1999-10-06 09:04:55 +0000 | [diff] [blame^] | 71 | putc(' ', stdout); |
Eric Andersen | 4bea32a | 1999-10-06 00:30:51 +0000 | [diff] [blame] | 72 | while(len-- > 0) |
| 73 | putc('\b', stdout); |
| 74 | fflush(stdout); |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 75 | #endif |
Eric Andersen | 4bea32a | 1999-10-06 00:30:51 +0000 | [diff] [blame] | 76 | } |
| 77 | if ( c == '\n' && ++lines == (rows + 1) ) |
| 78 | next_page = 1; |
| 79 | putc(c, stdout); |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 80 | } |
Eric Andersen | 4bea32a | 1999-10-06 00:30:51 +0000 | [diff] [blame] | 81 | fclose(file); |
| 82 | fflush(stdout); |
| 83 | |
| 84 | argc--; |
| 85 | argv++; |
| 86 | } |
| 87 | return(TRUE); |
Eric Andersen | cc8ed39 | 1999-10-05 16:24:54 +0000 | [diff] [blame] | 88 | } |
Eric Andersen | 4bea32a | 1999-10-06 00:30:51 +0000 | [diff] [blame] | 89 | |
| 90 | |