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authorEric Andersen <andersen@codepoet.org>1999-10-06 00:30:51 +0000
committerEric Andersen <andersen@codepoet.org>1999-10-06 00:30:51 +0000
commit4bea32abb5d25e3b83047c22fd3f4e8fae2479cd (patch)
treec8aad7a8b8c573c2421b7fb3e58fdd00a3c1fe9b /util-linux
parent2b69c40e8060934c115922c012737bd471956f09 (diff)
downloadbusybox-4bea32abb5d25e3b83047c22fd3f4e8fae2479cd.tar.gz
latest and greatest.
Diffstat (limited to 'util-linux')
-rw-r--r--util-linux/more.c169
1 files changed, 72 insertions, 97 deletions
diff --git a/util-linux/more.c b/util-linux/more.c
index 65409999b..2ea709278 100644
--- a/util-linux/more.c
+++ b/util-linux/more.c
@@ -1,110 +1,85 @@
+/*
+ * 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
+ *
+ */
+
#include "internal.h"
#include <stdio.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/ioctl.h>
-#include <fcntl.h>
-
-#define BB_MORE_TERM
-
-#ifdef BB_MORE_TERM
- #include <termios.h>
- #include <signal.h>
+#include <signal.h>
- FILE *cin;
- struct termios initial_settings, new_settings;
+const char more_usage[] = "[file ...]";
- void gotsig(int sig) {
- tcsetattr(fileno(cin), TCSANOW, &initial_settings);
- exit(0);
- }
-#endif
-const char more_usage[] = "more [file]\n"
-"\n"
-"\tDisplays a file, one page at a time.\n"
-"\tIf there are no arguments, the standard input is displayed.\n";
-extern int
-more_fn(const struct FileInfo * i)
+extern int more_main(int argc, char **argv)
{
- FILE * f = stdin;
- int c;
- int lines = 0, tlines = 0;
- int next_page = 0;
- int rows = 24, cols = 79;
-#ifdef BB_MORE_TERM
- long sizeb = 0;
- struct stat st;
- struct winsize win;
-#endif
-
- if ( i ) {
- if (! (f = fopen(i->source, "r") )) {
- name_and_error(i->source);
- return 1;
- }
- fstat(fileno(f), &st);
- sizeb = st.st_size / 100;
- }
-
-#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);
+ int c, lines=0;
+ int next_page=0, rows = 24, cols=79;
+ struct stat st;
+ FILE *file = stdin;
- 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;
+ if ( strcmp(*argv,"--help")==0 || strcmp(*argv,"-h")==0 ) {
+ fprintf(stderr, "Usage: %s %s", *argv, more_usage);
+ return(FALSE);
+ }
+ argc--;
+ argv++;
+ while (argc-- > 0) {
+ file = fopen(*argv, "r");
+ if (file == NULL) {
+ perror(*argv);
+ return(FALSE);
+ }
+ fstat(fileno(file), &st);
+ while ((c = getc(file)) != EOF) {
+ if ( next_page ) {
+ int len=0;
+ next_page = 0;
+ lines=0;
+ len = fprintf(stdout, "--More-- (%d%% of %ld bytes)\n",
+ (int) (100*( (double) ftell(file) / (double) st.st_size )),
+ st.st_size);
+ fflush(stdout);
+ getc( stdin);
+#if 0
+ while(len-- > 0)
+ putc('\b', stdout);
+ while(len++ < cols)
+ putc('8', stdout);
+ while(len-- > 0)
+ putc('\b', stdout);
+ fflush(stdout);
#endif
-
- while ( (c = getc(f)) != EOF ) {
- if ( next_page ) {
- char garbage;
- int len;
- tlines += lines;
- lines = 0;
- next_page = 0; //Percentage is based on bytes, not lines.
- if ( i && i->source ) //It is not very acurate, but still useful.
- len = printf("%s - %%%2ld - line: %d", i->source, (ftell(f) - sizeb - sizeb) / sizeb, tlines);
- else
- len = printf("line: %d", tlines);
-
- fflush(stdout);
-#ifndef BB_MORE_TERM
- read(2, &garbage, 1);
-#else
- do {
- fread(&garbage, 1, 1, cin);
- } while ((garbage != ' ') && (garbage != '\n'));
-
- if (garbage == '\n') {
- lines = rows;
- tlines -= rows;
- }
- garbage = 0;
- //clear line, since tabs don't overwrite.
- while(len-- > 0) putchar('\b');
- while(len++ < cols) putchar(' ');
- while(len-- > 0) putchar('\b');
- fflush(stdout);
-#endif
- }
- putchar(c);
- if ( c == '\n' && ++lines == (rows + 1) )
- next_page = 1;
+ }
+ if ( c == '\n' && ++lines == (rows + 1) )
+ next_page = 1;
+ putc(c, stdout);
}
- if ( f != stdin )
- fclose(f);
-#ifdef BB_MORE_TERM
- gotsig(0);
-#endif
- return 0;
+ fclose(file);
+ fflush(stdout);
+
+ argc--;
+ argv++;
+ }
+ return(TRUE);
}
+
+