Garbo/Garbo.cdr/pc/source/ms_sh16.lzh/ms_sh.7

Text File | 1990-05-06 | 39.1 KB | 1,098 lines

#!/bin/sh
# this is part 7 of a multipart archive
# do not concatenate these parts, unpack them in order with /bin/sh
# file Patch1.6 continued
#
CurArch=7
if test ! -r s2_seq_.tmp
then echo "Please unpack part 1 first!"
     exit 1; fi
( read Scheck
  if test "$Scheck" != $CurArch
  then echo "Please unpack part $Scheck next!"
       exit 1;
  else exit 0; fi
) < s2_seq_.tmp || exit 1
echo "x - Continuing file Patch1.6"
sed 's/^X//' << 'SHAR_EOF' >> Patch1.6
X
X***************
X*** 13,21 ****
X   2.  The sources (or parts thereof) or objects generated from the
X       sources (or parts of sources) cannot be sold under any circumstances.
X
X!     $Header: readme 1.3 90/02/16 16:58:10 MS_user Exp $
X
X      $Log:    readme $
X      Revision 1.3  90/02/16  16:58:10  MS_user
X      Set up 1.5 release
X
X--- 13,33 ----
X   2.  The sources (or parts thereof) or objects generated from the
X       sources (or parts of sources) cannot be sold under any circumstances.
X
X!     $Header: readme 1.7 90/04/03 18:07:01 MS_user Exp $
X
X      $Log:    readme $
X+     Revision 1.7  90/04/03  18:07:01  MS_user
X+     Some changes for 1.6 (Int 24 and Config file)
X+
X+     Revision 1.6  90/03/14  12:37:23  MS_user
X+     Add some more 1.6 changes
X+
X+     Revision 1.5  90/03/06  17:01:00  MS_user
X+     1.6 release
X+
X+     Revision 1.4  90/02/22  16:52:41  MS_user
X+     Add XMS support
X+
X      Revision 1.3  90/02/16  16:58:10  MS_user
X      Set up 1.5 release
X
X***************
X*** 59,69 ****
X      child process is executing.
X
X      Note: Swapping to Extended memory is probably the most dangerous
X!       because there is no memory manager available for it.
X
X  2)  History processing has been added.
X
X! 3)  Command line editing has been added.
X
X  4)  The command line prompt can be programmed to display 'useful'
X      information.
X--- 71,85 ----
X      child process is executing.
X
X      Note: Swapping to Extended memory is probably the most dangerous
X!       unless you have an XMS memory manager available.  The shell
X!       requires the XMS manager to support the version 2 XMS
X!       specification.
X
X  2)  History processing has been added.
X
X! 3)  Command line editing has been added.  A configuration file (sh.ini)
X!     allows the Command Line editing keys to be tailored to the users
X!     requirements
X
X  4)  The command line prompt can be programmed to display 'useful'
X      information.
X***************
X*** 83,92 ****
X  7)  Wild cards on drives (ie echo *:*.c will echo all the C files in
X      the current directories of each drive) are supported.
X
X! 8)  Interrupt 24 processing has been added.
X
X! The shell was built using MS-DOS C and MASM v5.1 in large model mode.
X
X  In order to rebuild this program, you need the DIRECTORY(3) functions
X  for MSDOS (also included) and the version of open in your library must
X  pass the O_NOINHERIT bit on the MSDOS kernel.  The Microsoft C V5.1
X--- 99,115 ----
X  7)  Wild cards on drives (ie echo *:*.c will echo all the C files in
X      the current directories of each drive) are supported.
X
X! 8)  Full Interrupt 24 processing has been added.
X
X! 9)  Filename completion has been added.
X
X+ 10) Alternate command interpreters are supported in shell scripts a la
X+     Unix V.4.
X+
X+ 11) A configuration file is supported to allow edit key specification.
X+
X+ The shell was built using MS-DOS C and MASM v5.1 in large model mode.
X+
X  In order to rebuild this program, you need the DIRECTORY(3) functions
X  for MSDOS (also included) and the version of open in your library must
X  pass the O_NOINHERIT bit on the MSDOS kernel.  The Microsoft C V5.1
X***************
X*** 94,100 ****
X  fixed this using CodeView to find where the library function masks off
X  the bottom 2 bits.  Extracted the object from the library and patched
X  mask from 0x03 to 0x83 in the object and reload into the library.  No
X! Problem.
X
X  You can do want you like with this software as long as you don't sell
X  it or remove the Copyright notices in the sources or object.
X--- 117,123 ----
X  fixed this using CodeView to find where the library function masks off
X  the bottom 2 bits.  Extracted the object from the library and patched
X  mask from 0x03 to 0x83 in the object and reload into the library.  No
X! Problem.  The Patch.Lib document describes the process in more detail.
X
X  You can do want you like with this software as long as you don't sell
X  it or remove the Copyright notices in the sources or object.
XIndex: sh.1
XPrereq: 1.2
X*** ../sh15/sh.1    Wed Mar  7 11:09:03 1990
X--- sh.1    Tue May  1 20:02:16 1990
X***************
X*** 1,3 ****
X--- 1,4 ----
X+ .\"!ts -t -msqan
X  .\"
X  .\" MS-DOS SHELL - Manual Page
X  .\"
X***************
X*** 13,21 ****
X  .\" 2.  The sources (or parts thereof) or objects generated from the sources
X  .\"     (or parts of sources) cannot be sold under any circumstances.
X  .\"
X! .\"    $Header: sh.1 1.2 90/02/16 16:58:27 MS_user Exp $
X  .\"
X  .\"    $Log:    sh.1 $
X  .\"    Revision 1.2  90/02/16  16:58:27  MS_user
X  .\"    Set up 1.5 release
X  .\"
X--- 14,46 ----
X  .\" 2.  The sources (or parts thereof) or objects generated from the sources
X  .\"     (or parts of sources) cannot be sold under any circumstances.
X  .\"
X! .\"    $Header: sh.1 1.10 90/05/01 19:58:38 MS_user Exp $
X  .\"
X  .\"    $Log:    sh.1 $
X+ .\"    Revision 1.10  90/05/01  19:58:38  MS_user
X+ .\"    Fix typing error
X+ .\"
X+ .\"    Revision 1.9  90/04/04  11:31:14  MS_user
X+ .\"    Change MAILPATH to use a semi-colon and not a colon for DOS
X+ .\"
X+ .\"    Revision 1.8  90/03/28  19:42:29  MS_user
X+ .\"    Full Interrupt 24 handler included
X+ .\"
X+ .\"    Revision 1.7  90/03/14  19:43:46  MS_user
X+ .\"    Add new initialisation file processing
X+ .\"
X+ .\"    Revision 1.6  90/03/09  16:04:37  MS_user
X+ .\"    Add SH_BELL and SH_ALT_KEYS description
X+ .\"
X+ .\"    Revision 1.5  90/03/06  16:03:00  MS_user
X+ .\"    Final clean up for 1.6
X+ .\"
X+ .\"    Revision 1.4  90/03/05  13:46:27  MS_user
X+ .\"    Add functionality changes for Command Line editor
X+ .\"
X+ .\"    Revision 1.3  90/02/22  16:55:13  MS_user
X+ .\"    Add XMS driver support
X+ .\"
X  .\"    Revision 1.2  90/02/16  16:58:27  MS_user
X  .\"    Set up 1.5 release
X  .\"
X***************
X*** 23,38 ****
X  .\"    Initial revision
X  .\"
X  .\"
X! .\"
X  .ds OK [\|
X  .ds CK \|]
X! .TH SH 1L "Data Logic Limited" "MS-DOS Version 1.5"
X  .SH NAME
X  sh, rsh - shell, the standard/restricted command programming language
X  .SH SYNOPSIS
X! \fBsh\fR [ \fB-acefhiknmrstuvx\fR ] [ args ]
X  .br
X! \fBrsh\fR [ \fB-acefhiknmrstuvx\fR ] [ args ]
X  .SH DESCRIPTION
X  \fISh\fR is a command programming language that executes commands read from a
X  terminal or a file.  \fIRsh\fR is a restricted version of the standard command
X--- 48,63 ----
X  .\"    Initial revision
X  .\"
X  .\"
X! .\"    This man page requires tbl.
X  .ds OK [\|
X  .ds CK \|]
X! .TH SH 1L "Data Logic Limited" "MS-DOS Version 1.6"
X  .SH NAME
X  sh, rsh - shell, the standard/restricted command programming language
X  .SH SYNOPSIS
X! \fBsh\fR [ \fB-acefhiknmrstuvx0\fR ] [ args ]
X  .br
X! \fBrsh\fR [ \fB-acefhiknmrstuvx0\fR ] [ args ]
X  .SH DESCRIPTION
X  \fISh\fR is a command programming language that executes commands read from a
X  terminal or a file.  \fIRsh\fR is a restricted version of the standard command
X***************
X*** 114,124 ****
X  which to execute the \fIlist\fR, but does not fork a sub-shell as a Unix
X  system would.  The original environment is restored on completion.
X  .TP
X! \fB{\fIlist\fB;}\fR
X  .br
X  \fIlist\fR is simply executed.
X  .TP
X! \fIname \fB() {\fIlist\fB;}\fR
X  Define a function which is referenced by \fIname\fR.  The body of the function
X  is the \fIlist\fR of commands between \fB{\fR and \fB}\fR.  Execution of
X  functions is described below (see \fIExecution\fR).
X--- 139,149 ----
X  which to execute the \fIlist\fR, but does not fork a sub-shell as a Unix
X  system would.  The original environment is restored on completion.
X  .TP
X! \fB{ \fIlist\fB; }\fR
X  .br
X  \fIlist\fR is simply executed.
X  .TP
X! \fIname \fB() { \fIlist\fB; }\fR
X  Define a function which is referenced by \fIname\fR.  The body of the function
X  is the \fIlist\fR of commands between \fB{\fR and \fB}\fR.  Execution of
X  functions is described below (see \fIExecution\fR).
X***************
X*** 225,236 ****
X  .TP
X  .B
X  .SM CDPATH
X! The search path for the \fIcd\fR command.  (Note that becuase a colon is used
X  by MSDOS to indicate a drive, a semi-colon is used to separate the path names
X  instead of a colon - this implies that the CDPATH variable must be set using
X  single or double quotes to surround the value).
X  .TP
X  .B
X  .SM EXTENDED_LINE
X  This parameter defines a file containing a list of command which can accept
X  an Extended Command Line using the indirect command file character \fB@\fR.
X--- 250,268 ----
X  .TP
X  .B
X  .SM CDPATH
X! The search path for the \fIcd\fR command.  (Note that because a colon is used
X  by MSDOS to indicate a drive, a semi-colon is used to separate the path names
X  instead of a colon - this implies that the CDPATH variable must be set using
X  single or double quotes to surround the value).
X  .TP
X  .B
X+ .SM COMSPEC
X+ When the shell has to process an MSDOS \fI.bat\fR file, it expects the file
X+ indicated by the value of this environment variable to be an executable
X+ program capable of processing the MSDOS \fI.bat\fR file.  The program is
X+ invoked with the arguments \fB/c bat_file_name\fR.
X+ .TP
X+ .B
X  .SM EXTENDED_LINE
X  This parameter defines a file containing a list of command which can accept
X  an Extended Command Line using the indirect command file character \fB@\fR.
X***************
X*** 273,279 ****
X  .TP
X  .B
X  .SM MAILPATH
X! A colon (\fB:\fR) separated list of file names.  If this parameter is set,
X  the shell informs the user of the arrival of mail in any of the specified
X  files. Each file name can be followed by \fB%\fR and a message that will be
X  printed when the modification time changes.  The default message is
X--- 305,311 ----
X  .TP
X  .B
X  .SM MAILPATH
X! A semi-colon (\fB;\fR) separated list of file names.  If this parameter is set,
X  the shell informs the user of the arrival of mail in any of the specified
X  files. Each file name can be followed by \fB%\fR and a message that will be
X  printed when the modification time changes.  The default message is
X***************
X*** 285,291 ****
X  change \fB\s-1PATH\s+1\fR if executing under \fIrsh\fR.  (Note that because a
X  colon is used by MSDOS to indicate a drive, a semi-colon is used to separate
X  the path names instead of a colon - this implies that the PATH variable must
X! be set using single or double quotes to surround the value).
X  .TP
X  .B
X  .SM PS1
X--- 317,327 ----
X  change \fB\s-1PATH\s+1\fR if executing under \fIrsh\fR.  (Note that because a
X  colon is used by MSDOS to indicate a drive, a semi-colon is used to separate
X  the path names instead of a colon - this implies that the PATH variable must
X! be set using single or double quotes to surround the value).  The Shell
X! automatically converts Unix format \fB\s-1PATH\s+1\fR assignments to MSDOS
X! format when appropriate.  A assignment is converted if there are no semi-colons,
X! no backslashes and one or more colons.  If there is only one colon, it must
X! not be the second character of the new value.
X  .TP
X  .B
X  .SM PS1
X***************
X*** 299,314 ****
X  .SM SHELL
X  When the shell is invoked, it scans the environment (see \fIEnvironment\fR
X  below) for this name.  If it is found and there is an 'r' in the file name
X! part of its value, the shell becomes a restricted shell.
X  .TP
X  .B
X  .SM TMP
X! The location of temporary files created by the shell.
X  .RE
X  .PP
X  The shell gives default values to \fB\s-1PATH\s+1\fR, \fB\s-1PS1\s+1\fR,
X  \fB\s-1PS2\s+1\fR, \fB\s-1SHELL\s+1\fR, \fB\s-1HOME\s+1\fR and
X  \fB\s-1IFS\s+1\fR.
X  .SS Blank Interpretation
X  After parameter and command substitution, the results of substitution are
X  scanned for internal field separator characters (those found in
X--- 335,356 ----
X  .SM SHELL
X  When the shell is invoked, it scans the environment (see \fIEnvironment\fR
X  below) for this name.  If it is found and there is an 'r' in the file name
X! part of its value, the shell becomes a restricted shell.  The shell also
X! uses this variable to decide which program to spawn to interpret shell
X! scripts (see \fIExecution\fR below).
X  .TP
X  .B
X  .SM TMP
X! The location of temporary files created by the shell.  If this variable is
X! not defined, the Shell uses the \fB\s-1HOME\s+1\fR directory for temporary
X! files.  Failing that, the root directory of the current drive is used.
X  .RE
X  .PP
X+ .sp
X  The shell gives default values to \fB\s-1PATH\s+1\fR, \fB\s-1PS1\s+1\fR,
X  \fB\s-1PS2\s+1\fR, \fB\s-1SHELL\s+1\fR, \fB\s-1HOME\s+1\fR and
X  \fB\s-1IFS\s+1\fR.
X+ .sp
X  .SS Blank Interpretation
X  After parameter and command substitution, the results of substitution are
X  scanned for internal field separator characters (those found in
X***************
X*** 343,348 ****
X--- 385,396 ----
X  \fB\(ga\(ga!\(aa\(aa\fR any character not enclosed is matched.
X  .PD
X  .RE
X+ .PP
X+ If the shell has to open or create the file \fB/dev/tty\fR or \fB/dev/null\fR
X+ (which are Unix special files), they are converted to the equivalent MSDOS
X+ file names (\fB/dev/con\fR and \fB/dev/nul\fR respectively).  Any user
X+ programs which could expect \fB/dev/tty\fR or \fB/dev/null\fR as
X+ arguments must do its own mapping to the MSDOS equivalents.
X  .SS Quoting
X  The following characters have a special meaning to the shell and cause
X  termination of a word unless quoted:
X***************
X*** 520,528 ****
X  the shell for normal processing.  A history substitution takes the form:
X  .RS
X  .PP
X! \fB!\fR \*(OK \fIstr\fR \(br \fInum\fR \*(CK \fIterminator\fR
X  .RE
X  .PP
X  \fB!\fInum\fR will place the history command with the specified number
X  in the command line.  \fB!\fIstr\fR will find the most recent command
X  line that started with the characters in \fIstr\fR.
X--- 568,577 ----
X  the shell for normal processing.  A history substitution takes the form:
X  .RS
X  .PP
X! \fB!\fR \*(OK ! \(br \fIstr\fR \(br \fInum\fR \*(CK \fIterminator\fR
X  .RE
X  .PP
X+ \fB!!\fR will place the previous command in the command line.
X  \fB!\fInum\fR will place the history command with the specified number
X  in the command line.  \fB!\fIstr\fR will find the most recent command
X  line that started with the characters in \fIstr\fR.
X***************
X*** 534,595 ****
X  manner described below.
X  .SS Command Line Editing
X  When reading input from an interactive terminal, certain keystrokes allow
X! the current input line to be edited.  The following keystrokes are
X! available:
X  .TP
X! .SM "Cursor Right"
X  Move the cursor right one character
X  .TP
X! .SM "Control-Cursor Right"
X  Move the cursor right one word
X  .TP
X! .SM "Cursor Left"
X  Move the cursor left one character
X  .TP
X! .SM "Control-Cursor Left"
X  Move the cursor left one word
X  .TP
X! .SM "Cursor Up"
X  Get the previous command from the history file
X  .TP
X! .SM "Cursor Down"
X  Get the next command from the history file
X  .TP
X  .SM "Insert"
X! Toggle insert/overwrite mode
X  .TP
X! .SM "Delete"
X! Delete the current character
X  .TP
X! .SM "Home"
X  Move the cursor to the start of the command
X  .TP
X  .SM "End"
X  Move the cursor to the end of the command, unless the first character of
X  the command is a \fB!\fR, in which case the appropriate history search is
X! done.
X  .TP
X! .SM "Control-End"
X  Delete to the end of the line
X  .TP
X! .SM "Page-Up"
X  Search backwards from the current history command for the next match against
X! the last history request.  This command can only be used after \fBEnd\fR has
X! been used to select a history line.
X  .TP
X! .SM "Page-Down"
X  Search forewards from the current history command for the next match against
X! the last history request.  This command can only be used after \fBEnd\fR has
X! been used to select a history line.
X  .TP
X! .SM "Backspace"
X! Move the cursor back one character, erasing the current character.
X  .TP
X  .SM "Return"
X  Execute the command line, unless the first character of the command is a
X! \fB!\fR, in which case the appropriate history processing is done.
X  .PD
X  .RE
X  .SS Execution
X  Each time a command is executed, the above substitutions are carried out.  If
X  the command name matches one of the \fISpecial Commands\fR listed below, it
X--- 583,753 ----
X  manner described below.
X  .SS Command Line Editing
X  When reading input from an interactive terminal, certain keystrokes allow
X! the current input line to be edited.  The following keystrokes
X! corresponding to the following functions are defined in the initialisation
X! file \fBsh.ini\fR.  The keywords in the initialisation file which provide
X! the functions are listed below:
X  .TP
X! .B
X! .SM "Right"
X  Move the cursor right one character
X  .TP
X! .B
X! .SM "WordRight"
X  Move the cursor right one word
X  .TP
X! .B
X! .SM "Left"
X  Move the cursor left one character
X  .TP
X! .B
X! .SM "WordLeft"
X  Move the cursor left one word
X  .TP
X! .B
X! .SM "Previous"
X  Get the previous command from the history file
X  .TP
X! .B
X! .SM "Next"
X  Get the next command from the history file
X  .TP
X+ .B
X  .SM "Insert"
X! Toggle insert/overwrite mode (note the shape of the cursor changes to
X! indicate the current mode)
X  .TP
X! .B
X! .SM "DeleteRight
X! Delete the current character unless the cursor is at the end of line when
X! no action is taken
X  .TP
X! .B
X! .SM "Start"
X  Move the cursor to the start of the command
X  .TP
X+ .B
X+ .SM "Complete"
X+ Attempt to complete the filename.  The shell attempts to complete the file
X+ name at the current cursor position.  The file name is delimited by white
X+ space characters.  If the shell is unable to complete the file name (ie no
X+ match can be found in the appropriate directory), the bell is rung.  If a
X+ single match is found, the new file name is displayed.  If multiple matches
X+ are found, the file name is replaced by the longest non-unique part of the
X+ file name and the bell is rung.
X+ .TP
X+ .B
X  .SM "End"
X  Move the cursor to the end of the command, unless the first character of
X  the command is a \fB!\fR, in which case the appropriate history search is
X! done.  The cursor is placed at the end of the command line.
X  .TP
X! .B
X! .SM "Flush"
X  Delete to the end of the line
X  .TP
X! .B
X! .SM "ScanBackward"
X  Search backwards from the current history command for the next match against
X! the last history request or the string currently in the command line if
X! there has been no previous history request.
X  .TP
X! .B
X! .SM "ScanForeward"
X  Search forewards from the current history command for the next match against
X! the last history request or the string currently in the command line if
X! there has been no previous history request.
X  .TP
X! .B
X! .SM "Clear"
X! Erase the complete line.
X  .TP
X+ .B
X+ .SM "Directory"
X+ Display the file name list matching the partially entered file name under
X+ the cursor.  If no matches are found the bell is rung.  To display the
X+ whole directory, enter the directory name followed by a slash \fB/\fR.
X+ After the directory listing has been displayed, the entered command line is
X+ redisplayed.
X+ .TP
X+ .B
X+ .SM "DeleteLeft"
X+ Delete the character to the left of the cursor.
X+ .TP
X+ .B
X  .SM "Return"
X  Execute the command line, unless the first character of the command is a
X! \fB!\fR, in which case the appropriate history processing is done.  \fIThis
X! is the actual key pressed and cannot be modified by the initialisation file.\fR
X  .PD
X  .RE
X+ .SS Initialisation File
X+ When the shell is run in interactive mode, the Command Line Editing keys
X+ and other user configuration parameters are read from the initialisation
X+ file \fIsh.ini\fR.  This shell looks for this file in the same directory as
X+ the \fBsh\fR executable which is running.  It does not use the \fBSHELL\fR
X+ environment variable or search the directories in the \fBPATH\fR
X+ environment variable.  At present, there are two types of entry in this
X+ file: keyboard configuration; and others.  The entry is contained in a
X+ single line and consists of a keyword (in upper or lower case), white space,
X+ an equals symbols, white space and one or two numeric values (see \fIstrtol\fR
X+ for valid formats where \fIbase\fR parameter is zero), followed by an end
X+ of line character.
X+ .PP
X+ For the keyboard entries, the numeric values give the MSDOS Function 8 (Console
X+ Input without Echo) return values for that entry.  Note that extended codes
X+ (function keys) require two calls to this function.  The first call returns
X+ zero and the second the extended code.  In the configuration file, a first
X+ numeric value of zero indicates a extended code and must be followed by a
X+ second value.  A non-zero first numeric value must not be followed by
X+ anything else on the line.
X+ .PP
X+ Other entries must only have one numeric value.  A zero value disables the
X+ function and a non-zero value enables the function.  At present, there are
X+ two other functions:
X+ .TP
X+ .B
X+ .SM "Bell"
X+ Enable/disable warning bells
X+ .TP
X+ .B
X+ .SM "HalfHeight"
X+ Use full or halfheight block cursor to indicate Insert mode
X+ .PD
X+ .RE
X+ .PP
X+ Invalid lines or lines beginning with a \fB#\fR are ignored.
X+ .PP
X+ The following table gives the list of valid keywords and their default
X+ values:
X+ .TS
X+ box;
X+ l l l l.
X+ Keyword    First numeric    Second numeric    Actual Key
X+ _
X+ KEYBOARD ENTRIES
X+ ScanBackward    0    0x49    PAGE UP
X+ ScanForeward    0    0x51    PAGE DOWN
X+ Previous    0    0x48    UP ARROW
X+ Next    0    0x50    DOWN ARROW
X+ Left    0    0x4b    LEFT ARROW
X+ Right    0    0x4d    RIGHT ARROW
X+ WordRight    0    0x74    Control RIGHT ARROW
X+ WordLeft    0    0x73    Control LEFT ARROW
X+ Start    0    0x47    HOME
X+ Clear    0    0x76    Control PAGE DOWN
X+ Flush    0    0x75    Control END
X+ End    0    0x4f    END
X+ Insert    0    0x52    INSERT
X+ DeleteRight    0    0x53    DELETE
X+ DeleteLeft    0x08        BACKSPACE
X+ Complete    0    0x77    Control HOME
X+ Directory    0    0x0f    Shift TAB
X+ _
X+ OTHER FUNCTIONS
X+ Bell    0
X+ HalfHeight    0
X+ .TE
X  .SS Execution
X  Each time a command is executed, the above substitutions are carried out.  If
X  the command name matches one of the \fISpecial Commands\fR listed below, it
X***************
X*** 611,624 ****
X  anywhere else in the path list.  If the command name contains a \fB/\fR or
X  starts with \fBx:\fR (where x is a drive letter) the search path is not used;
X  such commands will not be executed by the restricted shell.  Otherwise, each
X! directory in the path is searched for an executable file.
X  .PP
X! If the file does not have a .com or .exe extension, it is opened and the first
X! 5 characters are read.  If the first 5 characters are the string
X! \fB#!sh\\n\fR it is assumed to be a file containing shell commands.  Note
X! that the shell will check the file and if that file does not exist or is not a
X! script, it will try the file with an extension of \fB.sh\fR.  If a \fB.sh\fR
X! file is found, that will be processed.  A sub-shell is spawned to read it.
X  A parenthesized command is also executed in a sub-shell.
X  .SS Special Commands
X  Input/output redirection is permitted for these commands.  File descriptor 1
X--- 769,807 ----
X  anywhere else in the path list.  If the command name contains a \fB/\fR or
X  starts with \fBx:\fR (where x is a drive letter) the search path is not used;
X  such commands will not be executed by the restricted shell.  Otherwise, each
X! directory in the path is searched for an executable file.  Executable files
X! are indicated by a .exe or .com extension.  This extension is automatically
X! supplied by the shell and not have to be entered by the user.
X  .PP
X! If the file with a .com or .exe extension cannot be found in the
X! directory, the file is opened and first 512 characters are read.  If there are
X! no characters in the block with a value in the range 0 to 7, the file is
X! assumed to be a script file containing shell commands.  Note that the shell
X! will check the file and if that file does not exist or is not a script, it
X! will try the file with an extension of \fB.sh\fR.  If a \fB.sh\fR file is
X! found, that will be processed.  A sub-shell (given by the environment
X! variable \fBSHELL\fR) is spawned to read
X! it.
X! .PP
X! If the script file starts with the a line of the form \fI#! interpreter\fR
X! \*(OK\fIarguments\fR\*(CK, the interpreter is invoked instead of the shell
X! to process the script.  Optional arguments can be supplied in the script
X! file which are passed before the name of the script file.  Thus, if the
X! file \fIdemo\fR contained the following string as the first line
X! .RS
X! .PP
X! #! perl -sP
X! .RE
X! .PP
X! Entering \fIdemo name\fR would be equivalent to entering the \fIperl -sP name\fR
X! at the command prompt.  Note that no other processing of the first line
X! other that the separation (by white space) into arguments is done.
X! .PP
X! If none of the above conditions for a executable file are detected and a file
X! with a .bat extension exists in the directory, the command processor given by
X! the \fBCOMSPEC\fR environment variable is spawned to process the file.  This
X! is normally the standard MSDOS \fIcommand.com\fR processor.
X! .PP
X  A parenthesized command is also executed in a sub-shell.
X  .SS Special Commands
X  Input/output redirection is permitted for these commands.  File descriptor 1
X***************
X*** 796,802 ****
X  \fBmsdos\fR \*(OK \fIname\fR ... \*(CK
X  The given \fIname\fRs are marked \fImsdos\fR format and if the \fB-m\fR flag
X  is set, the values of the these \fIname\fRs are exported to child processes
X! with the any slashes in the value replaced by backslashes.
X  .TP
X  \fBpwd\fR
X  Print the current working directory.
X--- 979,985 ----
X  \fBmsdos\fR \*(OK \fIname\fR ... \*(CK
X  The given \fIname\fRs are marked \fImsdos\fR format and if the \fB-m\fR flag
X  is set, the values of the these \fIname\fRs are exported to child processes
X! with any slashes in the value replaced by backslashes.
X  .TP
X  \fBpwd\fR
X  Print the current working directory.
X***************
X*** 884,896 ****
X  swapped, the shell reduces the available memory by about 3K.
X  .TP
X  \fBexpand\fR
X! Enable swapping to Expanded Memory.  The EMS drive must exist on your
X  system for this to work.
X  .TP
X  \fBextent\fR \*(OK \fIstart address\fR \*(CK
X! Enable swapping to Extended Memory.  The optional start address defines the
X! based address in the Extended Memory at which point the shell writes its
X! swap area.  The default location is \fI0x100000\fR.
X  .TP
X  \fBdisk\fR
X  Enable swapping to disk.  The shell creates a temporary file and saves
X--- 1067,1081 ----
X  swapped, the shell reduces the available memory by about 3K.
X  .TP
X  \fBexpand\fR
X! Enable swapping to Expanded Memory.  The EMS driver must exist on your
X  system for this to work.
X  .TP
X  \fBextent\fR \*(OK \fIstart address\fR \*(CK
X! Enable swapping to Extended Memory.  If you have an XMS driver on your
X! system, the shell will use the XMS driver.  Otherwise, the BIOS Interrupt
X! 15 interface is used.  The optional start address defines the based address
X! in the Extended Memory at which point the shell writes its swap area when
X! the BIOS interface is used.  The default location is \fI0x100000\fR.
X  .TP
X  \fBdisk\fR
X  Enable swapping to disk.  The shell creates a temporary file and saves
X***************
X*** 937,943 ****
X  true if the open file whose file descriptor number is \fIfildes\fR (1 by
X  default) is associated with a terminal device.
X  .TP
X! \fB-n \fIs1\fR
X  true if the length of the string \fIs1\fR is zero.
X  .TP
X  \fB-n \fIs1\fR
X--- 1122,1128 ----
X  true if the open file whose file descriptor number is \fIfildes\fR (1 by
X  default) is associated with a terminal device.
X  .TP
X! \fB-z \fIs1\fR
X  true if the length of the string \fIs1\fR is zero.
X  .TP
X  \fB-n \fIs1\fR
X***************
X*** 1089,1094 ****
X--- 1274,1285 ----
X  \s-1$HOME\s+1/profile.sh
X  .br
X  \s-1$TMP\s+1/sh\(**
X+ .br
X+ ??/sh.ini
X+ .SH CRITICAL ERRORS
X+ The Shell provide a Critical Error Handler (Interrupt 24) similar to the
X+ standard MSDOS handler.  In addition to the standard message, the handler
X+ also displays the Extended Error Code information in hexadecimal.
X  .SH LIMIITATIONS
X  Any TSR (Terminate Stay Resident) programs must be loaded before loading
X  \fISh\fR as the shell will overwrite the TSR when it reloads itself after
X***************
X*** 1105,1110 ****
X--- 1296,1302 ----
X  signal(2),
X  umask(2),
X  wait(2),
X+ strtol(3),
X  profile(4),
X  environ(5) in the
X  \fI\s-1UNIX\s+1 System Programmer Reference Manual\fR.
SHAR_EOF
echo "File Patch1.6 is complete"
chmod 0644 Patch1.6 || echo "restore of Patch1.6 fails"
set `wc -c Patch1.6`;Sum=$1
if test "$Sum" != "223824"
then echo original size 223824, current size $Sum;fi
echo "x - extracting Notes1.6 (Text)"
sed 's/^X//' << 'SHAR_EOF' > Notes1.6 &&
XVersion 1.6 Release Notes:
X
XThe following problems have been fixed in 1.6
X
X   1.   Traps did now work correctly (as far as possible for DOS) la System
X    V.3
X   2.   File descriptor duplication closed standard input.
X   3.   !! has been implemented to return the previous command in the history
X    file
X   4.   erase_to_end_of_line has been improved/fixed
X   5.   The processing of . filename has been fixed so that the script is
X    now executed immediately.  This is the area most likely to contain
X    bugs.
X   6.   History does not double prompt
X   7.    Bugs in the 'here' document code delete backslashes and prevented
X    `command` in a here document from working.
X   8.   Interrupting a pipeline could result in std??? remaining redirected
X   9.   exec >filename did not work
X  10.   Some temporary files were not deleted.
X  11.   The swapper failed to check for disk full errors
X
XThe following enhancements have been made:
X
X   1.   /dev/tty and /dev/null are mapped to /dev/con and /dev/nul internally
X   2.   <up arrow> returns the previous history command
X   3.   <page up> will now search for the previous history entry matching
X    the entered string
X   4.   The shell determines the number of columns on the screen from the
X    BIOS
X   5.   Shell scripts are detected in a new manner.  For a file to be a
X    shell script, it must contain no characters with values in the
X    range 0 to 7 in the first 512 bytes.
X   6.   #! <command> <arguments> processing on the first line of script files
X    has been implemented a la System V.4
X   7.   XMS drivers are now supported
X   8.   Some static buffers are now 'malloced' instead and some length
X    checks have been added
X   9.   Insert command selects a full or halfheight block cursor
X   10.  .bat files are processed by the shell specified by the variable
X    COMSPEC.
X   11.  UNIX format PATH variables are converted MSDOS format
X   12.  The shell attempts to find the number of lines on the screen from
X    the BIOS
X   13.  File name completion has been implemented
X   14.  Erase input buffer has been implemented
X   15.  A Configuration file (sh.ini) allows the user to configure the
X    editor keys
X   16.  Quoting of arugments with white space in them to MSDOS commands
X    has been added.
X   17.  Full internal Interrup 24 support is provided.
X
XThe following enhancements/bugs remain outstanding:
X
X    1.  The processing of the escape character (\) is not consistent with
X    the System V shell.  The MS-Shell always strips the first escape
X    character.  The System V shell only strips escape characters when
X    it detects a shell special character following (Release 1.7).
X
X    ie.  echo "\033[H" works under System V however echo "\\033[H" is
X    required in the MSDOS shell.
X
X    2.  8 Bit character are not supported.  This is tied in with the
X    processing of escape characters.  The shell uses the 8-bit to
X    mark escaped characters (Release 1.7).
X
X    3.  Reduce the amount of data written to swap file by only dumping the
X    data and stack space after the first write (Release 1.7+).
X
XThanks are due to
X
X    Greg Yachuk
X    Leo Vermeulen
X    Lee Fisher
X    John B Thiel
X    Harry McGavran
X    Bill Davidsen
X
Xfor their comments, fixes, tolerance etc in testing release 1.6
X
XIan Stewartson.
SHAR_EOF
chmod 0644 Notes1.6 || echo "restore of Notes1.6 fails"
set `wc -c Notes1.6`;Sum=$1
if test "$Sum" != "3216"
then echo original size 3216, current size $Sum;fi
echo "x - extracting Notes1.5 (Text)"
sed 's/^X//' << 'SHAR_EOF' > Notes1.5 &&
XVersion 1.6 Release Notes:
X
XThe following enhancements have been included:
X
X1)  Interrupt 24 processing is now handled correctly.  The shell does not
X    exit on Abort, it terminates the system call instead.
X
X2)  Some of the other interrupt processing has been cleaned up.
X
X3)  A bug in the Interrupt 23 detection code in sh0.asm has been fixed
X
X4)  The dependency on ANSI.SYS or NANSI.SYS has been removed (thanks to
X    Tom Horsley)
X
X5)  A missing source acknowledgement in sh7.c for the test command code
X    has been added.  The code came from Minix news group and was based
X    on the version written by Erik Baalbergen.
X
X6)  The executable version of this release has been send to the moderator
X    of comp.binaries.ibm.pc.
SHAR_EOF
chmod 0644 Notes1.5 || echo "restore of Notes1.5 fails"
set `wc -c Notes1.5`;Sum=$1
if test "$Sum" != "731"
then echo original size 731, current size $Sum;fi
echo "x - extracting Patch.Lib (Text)"
sed 's/^X//' << 'SHAR_EOF' > Patch.Lib &&
X MS-DOS Shell Version 1.6    Patch.Lib            March 1990
X
X MS-DOS SHELL - Copyright (c) 1990 Data Logic Limited and Charles Forsyth
X
X This code is based on (in part) the shell program written by Charles
X Forsyth and is subject to the following copyright restrictions:
X
X 1.  Redistribution and use in source and binary forms are permitted
X     provided that the above copyright notice is duplicated in the
X     source form and the copyright notice in file sh6.c is displayed
X     on entry to the program.
X
X 2.  The sources (or parts thereof) or objects generated from the
X     sources (or parts of sources) cannot be sold under any circumstances.
X
X    $Header: patch.lib 1.1 90/03/14 11:47:03 MS_user Exp $
X
X    $Log:    patch.lib $
X    Revision 1.1  90/03/14  11:47:03  MS_user
X    Initial revision
X
X________________________________________________________________________________
X
XThis document provides a set of instructions for modifying the Microsoft C
Xv5.1 Library function open so that the O_NOINHERIT flag is passed to MSDOS.
XThe CodeView commands are given where appropriate.
X
X1.  Using CodeView (or a similar debugger), set a breakpoint on the call to
X    open in S_open.
X
X    - v S_open
X    move cursor to open
X    - <F9>
X
X2.  Execute to the break point.  You may have to enter a command which opens
X    a file.
X
X    - g
X
X3.  Display the Assembly listing
X
X    - <F3>
X
X4.  Single step the debugger into the open function
X
X    - <F8> (5 times on my system)
X
X5.  Page through the assembler listing until you find the Interrupt 21 call.
X    In my version, this is about 16 assembler instructions into the open
X    function.  The call sequence is:
X
X    mov        byte ptr [bp - 4], 80H
X    push    ds
X    lds        dx, dword ptr [bp + 6]
X    and        al, 03
X    or        al, bh
X    mov        ah, 3d
X    int        21H
X
X6.  Record the machine code values for this sequence (especially the last 4
X    instructions).  On my system these are:
X
X    2403    and        al, 03
X    0AC7    or        al, bh
X    B43D    mov        ah, 3d
X    CD21    int        21H
X
X7.  Exit CodeView
X
X8.  Extract the module open.obj from your library.
X
X    lib llibce "*open.obj;"
X
X9.  Using an appropriate binary editor (or hex dump program) look for the
X    sequence of machine code values leading up to the interrupt (see step 6
X    above).  In my version of open.obj, it starts at offset 0x0f2 in the
X    file.  Change the AND AL, 03 instruction to AND AL, 83 by changing 24
X    03 to 24 83.
X
X    You may have to write a little program to open the file in binary mode,
X    seek to the appropriate location and write 0x83 to the file and close
X    it.
X
X10. Re-load the module in the library (you may want to keep a copy of the
X    original module/library in case of problems).
X
X    lib llibce "-+open.obj;"
X
X11. Re-link the shell
X
X12. Check that the AND AL, 03 has become an AND AL, 83 using steps 1 to 5.
X
XNote:
X    Microsoft, MSDOS and CodeView are registered trademarks of Microsoft
X    Corporation
SHAR_EOF
chmod 0644 Patch.Lib || echo "restore of Patch.Lib fails"
set `wc -c Patch.Lib`;Sum=$1
if test "$Sum" != "2900"
then echo original size 2900, current size $Sum;fi
echo "x - extracting ms_dio.2 (Text)"
sed 's/^X//' << 'SHAR_EOF' > ms_dio.2 &&
X.TH DIO_FUNCTION 2L "Data Logic Limited" "MS-DOS Version 1.1"
X.SH NAME
Xdio_functions - MSDOS Raw Disk/Memory I/O Functions
X.SH SYNOPSIS
X\fB#include <sys/types.h>
X.br
X#include <sys/stat.h>
X.br
X#include <fcntl.h>
X.br
X#include <ms_dio.h>
X.sp
Xint dio_access (path, amode)
X.br
Xint dio_chmod (path, mode)
X.br
Xint dio_close (fildes)
X.br
Xint dio_creat (path, mode)
X.br
Xint dio_dup (fildes)
X.br
Xint dio_isatty (fildes)
X.br
Xlong dio_lseek (fildes, offset, whence)
X.br
Xint dio_open (path, oflag\fR [ \fB, mode\fR ] \fB)
X.br
Xint dio_read (fildes, buf, nbyte)
X.br
Xint dio_stat (path, statb)
X.br
Xint dio_fstat (fildes, statb)
X.br
Xint dio_write (fildes, buf, nbyte)
X.br
Xlong dio_tell (fildes)
X.sp
Xchar *path;
X.br
Xchar *buf;
X.br
Xint amode;
X.br
Xint mode;
X.br
Xint fildes;
X.br
Xint whence;
X.br
Xint oflag;
X.br
Xlong offset;
X.br
Xunsigned int nbyte;
X.br
Xstruct stat *statb;
X.SH DESCRIPTION
XThese functions provide replacements for the standard MS-DOS library
Xfunction of similar name.  The object of these functions is to allow the
Xuser to access either the files, or raw disks or memory using standard
Xlibrary calls, in a similar manner to UNIX where files or devices can be
Xaccessed using the standard library functions.  A set of macros is provided
Xin the include file \fBms_dio.h\fR which maps the standard library functions
Xonto one of these functions.  If the file name or file descriptor refers to
Xa normal MSDOS file, the standard library function is invoked to perform
Xthe required function.  Otherwise, the appropriate action is taken by these
Xreplacement functions.  The functionality of the libraries is described on
Xthe appropriate manual pages for the standard function.
X.PP
XThese libraries recognise three devices - hard disks, floppy disks or
Xmemory and these are accessed using the following file names:
X.PP
X.PD 0
X.TP
X\fB/dev/fd\fIn\fR
XThis device allows the user to access a floppy disk.  The digit \fIn\fR
Xgives the drive number (from 0 to 9).  The topological information for
Xthis device (heads, tracks, sectors) is obtained from MS-DOS.  The open
Xfunction then checks to see what type of disk is loaded.  The following
Xdisks are recognised (8, 9 or 15 sectors, 1 or 2 heads, double or single
Xdensity).  The drive density is selected when necessary by attempting to
Xread sector 0 from the disk.
X.TP
X\fB/dev/hd\fIxy\fR
XThis device allows the user to access a hard disk.  The first digit \fIx\fR
Xgives the drive number (from 0 to 9) and the second digit \fIy\fR gives the
Xpartition number on the disk (from 0 to 9).  Partition zero refers to the
Xwhole disk.  Note that the open function sorts the partition table before
Xdeciding which partition is referred to.  All topological information for
SHAR_EOF
echo "End of part 7"
echo "File ms_dio.2 is continued in part 8"
echo "8" > s2_seq_.tmp
exit 0