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authorGravatar Glenn L McGrath <bug1@ihug.co.nz>2001-06-26 02:06:08 +0000
committerGravatar Glenn L McGrath <bug1@ihug.co.nz>2001-06-26 02:06:08 +0000
commit78b0e379d7c2db84eec34ccd89cf9afb67b94901 (patch)
treeae5bb34caa3b88968102e93193a01e4d90109b92 /util-linux
parentaddabd6f16aece578d94d810d3a9e9dc88f2cdb7 (diff)
downloadbusybox-78b0e379d7c2db84eec34ccd89cf9afb67b94901.tar.gz
busybox-78b0e379d7c2db84eec34ccd89cf9afb67b94901.tar.bz2
Vladimir's last_patch_15
Diffstat (limited to 'util-linux')
-rw-r--r--util-linux/more.c100
1 files changed, 49 insertions, 51 deletions
diff --git a/util-linux/more.c b/util-linux/more.c
index 9f07633c3..6cdec729b 100644
--- a/util-linux/more.c
+++ b/util-linux/more.c
@@ -9,6 +9,8 @@
* based on the original more implementation by Bruce, and code from the
* Debian boot-floppies team.
*
+ * Termios corrects by Vladimir Oleynik <vodz@usa.net>
+ *
* 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
@@ -29,29 +31,26 @@
#include <fcntl.h>
#include <signal.h>
#include <stdlib.h>
+#include <unistd.h>
#include <sys/ioctl.h>
#include "busybox.h"
-/* ED: sparc termios is broken: revert back to old termio handling. */
-#ifdef BB_FEATURE_USE_TERMIOS
-# if #cpu(sparc)
-# include <termio.h>
-# define termios termio
-# define setTermSettings(fd,argp) ioctl(fd,TCSETAF,argp)
-# define getTermSettings(fd,argp) ioctl(fd,TCGETA,argp)
-# else
-# include <termios.h>
-# define setTermSettings(fd,argp) tcsetattr(fd,TCSANOW,argp)
-# define getTermSettings(fd,argp) tcgetattr(fd, argp);
-# endif
-
static FILE *cin;
+#ifdef BB_FEATURE_USE_TERMIOS
+#include <termios.h>
+#define setTermSettings(fd,argp) tcsetattr(fd,TCSANOW,argp)
+#define getTermSettings(fd,argp) tcgetattr(fd, argp);
+
static struct termios initial_settings, new_settings;
-static void gotsig(int sig)
+static void set_tty_to_initial_mode(void)
{
setTermSettings(fileno(cin), &initial_settings);
+}
+
+static void gotsig(int sig)
+{
putchar('\n');
exit(EXIT_FAILURE);
}
@@ -65,7 +64,7 @@ static int terminal_height = 24;
extern int more_main(int argc, char **argv)
{
int c, lines, input = 0;
- int please_display_more_prompt;
+ int please_display_more_prompt = -1;
struct stat st;
FILE *file;
int len, page_height;
@@ -77,46 +76,57 @@ extern int more_main(int argc, char **argv)
argc--;
argv++;
- do {
- if (argc == 0) {
- file = stdin;
- } else
- file = xfopen(*argv, "r");
- fstat(fileno(file), &st);
-
-#ifdef BB_FEATURE_USE_TERMIOS
+ /* not use inputing from terminal if usage: more > outfile */
+ if(isatty(fileno(stdout))) {
cin = fopen("/dev/tty", "r");
if (!cin)
cin = xfopen("/dev/console", "r");
+ please_display_more_prompt = 0;
+#ifdef BB_FEATURE_USE_TERMIOS
getTermSettings(fileno(cin), &initial_settings);
new_settings = initial_settings;
- new_settings.c_cc[VMIN] = 1;
- new_settings.c_cc[VTIME] = 0;
new_settings.c_lflag &= ~ICANON;
new_settings.c_lflag &= ~ECHO;
+#ifndef linux
+ /* Hmm, in linux c_cc[] not parsed if set ~ICANON */
+ new_settings.c_cc[VMIN] = 1;
+ new_settings.c_cc[VTIME] = 0;
+#endif
setTermSettings(fileno(cin), &new_settings);
+ atexit(set_tty_to_initial_mode);
+ (void) signal(SIGINT, gotsig);
+ (void) signal(SIGQUIT, gotsig);
+ (void) signal(SIGTERM, gotsig);
+#endif
+ }
+
+ do {
+ if (argc == 0) {
+ file = stdin;
+ } else
+ file = wfopen(*argv, "r");
+ if(file==0)
+ goto loop;
+
+ fstat(fileno(file), &st);
-# ifdef BB_FEATURE_AUTOWIDTH
+ if(please_display_more_prompt>0)
+ please_display_more_prompt = 0;
+
+#if defined BB_FEATURE_AUTOWIDTH && defined BB_FEATURE_USE_TERMIOS
ioctl(fileno(stdout), TIOCGWINSZ, &win);
if (win.ws_row > 4)
terminal_height = win.ws_row - 2;
if (win.ws_col > 0)
terminal_width = win.ws_col - 1;
-# endif
-
- (void) signal(SIGINT, gotsig);
- (void) signal(SIGQUIT, gotsig);
- (void) signal(SIGTERM, gotsig);
-
#endif
len=0;
lines = 0;
page_height = terminal_height;
- please_display_more_prompt = 0;
while ((c = getc(file)) != EOF) {
- if (please_display_more_prompt) {
+ if (please_display_more_prompt>0) {
len = printf("--More-- ");
if (file != stdin) {
#if _FILE_OFFSET_BITS == 64
@@ -129,13 +139,6 @@ extern int more_main(int argc, char **argv)
(double) st.st_size)), (long)st.st_size);
#endif
}
- len += printf("%s",
-#ifdef BB_FEATURE_USE_TERMIOS
- ""
-#else
- "\n"
-#endif
- );
fflush(stdout);
@@ -143,20 +146,16 @@ extern int more_main(int argc, char **argv)
* We've just displayed the "--More--" prompt, so now we need
* to get input from the user.
*/
-#ifdef BB_FEATURE_USE_TERMIOS
input = getc(cin);
-#else
- input = getc(stdin);
+#ifndef BB_FEATURE_USE_TERMIOS
+ printf("\033[A"); /* up cursor */
#endif
-
-#ifdef BB_FEATURE_USE_TERMIOS
/* Erase the "More" message */
putc('\r', stdout);
while (--len >= 0)
putc(' ', stdout);
putc('\r', stdout);
fflush(stdout);
-#endif
len=0;
lines = 0;
page_height = terminal_height;
@@ -180,6 +179,7 @@ extern int more_main(int argc, char **argv)
/* increment by just one line if we are at
* the end of this line */
if (input == '\n')
+ if(please_display_more_prompt==0)
please_display_more_prompt = 1;
/* Adjust the terminal height for any overlap, so that
* no lines get lost off the top. */
@@ -195,6 +195,7 @@ extern int more_main(int argc, char **argv)
}
}
if (++lines >= page_height) {
+ if(please_display_more_prompt==0)
please_display_more_prompt = 1;
}
len=0;
@@ -208,12 +209,9 @@ extern int more_main(int argc, char **argv)
}
fclose(file);
fflush(stdout);
-
+loop:
argv++;
} while (--argc > 0);
end:
-#ifdef BB_FEATURE_USE_TERMIOS
- setTermSettings(fileno(cin), &initial_settings);
-#endif
return 0;
}