1 files changed, 49 insertions, 51 deletions

diff --git a/more.c b/more.c
index 9f07633c3..6cdec729b 100644
--- a/more.c
+++ b/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;
 }