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805 lines
46 KiB
HTML
805 lines
46 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<!-- This HTML file generated by cxref (version 1.6a). -->
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<!-- cxref program (c) Andrew M. Bishop 1995,96,97,98,99,2000,01,02,03,04,05. -->
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<!--
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Cxref: cxref -block-comments -verbatim-comments -xref-all -index-all -html-src -Oxref cmdPath.c
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CPP : cxref-cpp -lang-c -C -dD -dI
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-->
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<HTML>
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<HEAD>
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<TITLE>Source File cmdPath.c</TITLE>
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<LINK rel="stylesheet" href="cxref.css" type="text/css">
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</HEAD>
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<BODY>
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<pre>
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<a name="line1">1 |</a> /*****
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<a name="line2">2 |</a> ** ** Module Header ******************************************************* **
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<a name="line3">3 |</a> ** **
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<a name="line4">4 |</a> ** Modules Revision 3.0 **
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<a name="line5">5 |</a> ** Providing a flexible user environment **
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<a name="line6">6 |</a> ** **
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<a name="line7">7 |</a> ** File: cmdPath.c **
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<a name="line8">8 |</a> ** First Edition: 1991/10/23 **
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<a name="line9">9 |</a> ** **
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<a name="line10">10 |</a> ** Authors: John Furlan, jlf@behere.com **
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<a name="line11">11 |</a> ** Jens Hamisch, jens@Strawberry.COM **
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<a name="line12">12 |</a> ** **
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<a name="line13">13 |</a> ** Description: The path manipulation routines. Much of the heart of **
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<a name="line14">14 |</a> ** Modules is contained in this file. These routines **
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<a name="line15">15 |</a> ** are responsible for adding and removing directories **
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<a name="line16">16 |</a> ** from given PATH-like variables. **
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<a name="line17">17 |</a> ** **
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<a name="line18">18 |</a> ** Exports: cmdSetPath **
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<a name="line19">19 |</a> ** cmdRemovePath **
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<a name="line20">20 |</a> ** **
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<a name="line21">21 |</a> ** Notes: **
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<a name="line22">22 |</a> ** **
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<a name="line23">23 |</a> ** ************************************************************************ **
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<a name="line24">24 |</a> ****/
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<a name="line25">25 |</a>
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<a name="line26">26 |</a> /** ** Copyright *********************************************************** **
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<a name="line27">27 |</a> ** **
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<a name="line28">28 |</a> ** Copyright 1991-1994 by John L. Furlan. **
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<a name="line29">29 |</a> ** see LICENSE.GPL, which must be provided, for details **
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<a name="line30">30 |</a> ** **
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<a name="line31">31 |</a> ** ************************************************************************ **/
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<a name="line32">32 |</a>
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<a name="line33">33 |</a> static char Id[] = "@(#)$Id: cmdPath.c.src.html,v 1.6 2006/01/18 05:35:11 rkowen Exp $";
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<a name="line34">34 |</a> static void *UseId[] = { &UseId, Id };
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<a name="line35">35 |</a>
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<a name="line36">36 |</a> /** ************************************************************************ **/
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<a name="line37">37 |</a> /** HEADERS **/
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<a name="line38">38 |</a> /** ************************************************************************ **/
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<a name="line39">39 |</a>
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<a name="line40">40 |</a> #include "modules_def.h"
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<a name="line41">41 |</a> #ifdef HAS_SYS_PARAM_H
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<a name="line42">42 |</a> #include <sys/param.h>
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<a name="line43">43 |</a> #endif
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<a name="line44">44 |</a>
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<a name="line45">45 |</a> /** ************************************************************************ **/
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<a name="line46">46 |</a> /** LOCAL DATATYPES **/
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<a name="line47">47 |</a> /** ************************************************************************ **/
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<a name="line48">48 |</a>
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<a name="line49">49 |</a> /** not applicable **/
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<a name="line50">50 |</a>
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<a name="line51">51 |</a> /** ************************************************************************ **/
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<a name="line52">52 |</a> /** CONSTANTS **/
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<a name="line53">53 |</a> /** ************************************************************************ **/
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<a name="line54">54 |</a>
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<a name="line55">55 |</a> #ifdef MAXPATHLEN
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<a name="line56">56 |</a> #define PATH_BUFLEN MAXPATHLEN
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<a name="line57">57 |</a> #else
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<a name="line58">58 |</a> #define PATH_BUFLEN 1024
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<a name="line59">59 |</a> #endif
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<a name="line60">60 |</a>
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<a name="line61">61 |</a> /** ************************************************************************ **/
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<a name="line62">62 |</a> /** MACROS **/
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<a name="line63">63 |</a> /** ************************************************************************ **/
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<a name="line64">64 |</a>
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<a name="line65">65 |</a> #define _TCLCHK(a) \
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<a name="line66">66 |</a> {if (*(a)->result) ErrorLogger(ERR_EXEC,LOC,(a)->result,NULL);}
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<a name="line67">67 |</a>
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<a name="line68">68 |</a> /** ************************************************************************ **/
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<a name="line69">69 |</a> /** LOCAL DATA **/
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<a name="line70">70 |</a> /** ************************************************************************ **/
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<a name="line71">71 |</a>
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<a name="line72">72 |</a> static char module_name[] = "cmdPath.c"; /** File name of this module **/
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<a name="line73">73 |</a>
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<a name="line74">74 |</a> #if WITH_DEBUGGING_CALLBACK
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<a name="line75">75 |</a> static char _proc_cmdSetPath[] = "cmdSetPath";
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<a name="line76">76 |</a> static char _proc_cmdRemovePath[] = "cmdRemovePath";
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<a name="line77">77 |</a> static char _proc_Remove_Path[] = "Remove_Path";
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<a name="line78">78 |</a> #endif
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<a name="line79">79 |</a>
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<a name="line80">80 |</a> static char buffer[ PATH_BUFLEN];
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<a name="line81">81 |</a>
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<a name="line82">82 |</a> /** ************************************************************************ **/
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<a name="line83">83 |</a> /** PROTOTYPES **/
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<a name="line84">84 |</a> /** ************************************************************************ **/
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<a name="line85">85 |</a>
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<a name="line86">86 |</a> static int Remove_Path( Tcl_Interp *interp, char *variable, char *item,
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<a name="line87">87 |</a> char *sw_marker);
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<a name="line88">88 |</a>
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<a name="line89">89 |</a>
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<a name="line90">90 |</a> /*++++
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<a name="line91">91 |</a> ** ** Function-Header ***************************************************** **
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<a name="line92">92 |</a> ** **
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<a name="line93">93 |</a> ** Function: cmdSetPath **
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<a name="line94">94 |</a> ** **
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<a name="line95">95 |</a> ** Description: Add the passed value (argv[2]) to the specified vari-**
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<a name="line96">96 |</a> ** able (argv[1]). argv[0] specifies, if the variable **
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<a name="line97">97 |</a> ** is to be appended or prepended. Each directory in **
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<a name="line98">98 |</a> ** the path is checked to see whether it is already **
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<a name="line99">99 |</a> ** in the path. If so it is not added. **
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<a name="line100">100 |</a> ** **
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<a name="line101">101 |</a> ** First Edition: 1991/10/23 **
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<a name="line102">102 |</a> ** **
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<a name="line103">103 |</a> ** Parameters: ClientData client_data **
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<a name="line104">104 |</a> ** Tcl_Interp *interp According Tcl interp.**
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<a name="line105">105 |</a> ** int argc Number of arguments **
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<a name="line106">106 |</a> ** char *argv[] Argument array **
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<a name="line107">107 |</a> ** **
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<a name="line108">108 |</a> ** Result: int TCL_OK Successfull completion **
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<a name="line109">109 |</a> ** TCL_ERROR Any error **
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<a name="line110">110 |</a> ** **
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<a name="line111">111 |</a> ** Attached Globals: g_flags These are set up accordingly before **
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<a name="line112">112 |</a> ** this function is called in order to **
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<a name="line113">113 |</a> ** control everything **
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<a name="line114">114 |</a> ** **
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<a name="line115">115 |</a> ** ************************************************************************ **
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<a name="line116">116 |</a> ++++*/
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<a name="line117">117 |</a>
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<a name="line118">118 |</a> int cmdSetPath( ClientData client_data,
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<a name="line119">119 |</a> Tcl_Interp *interp,
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<a name="line120">120 |</a> int argc,
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<a name="line121">121 |</a> CONST84 char *argv[])
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<a name="line122">122 |</a> {
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<a name="line123">123 |</a> Tcl_RegExp chkexpPtr; /** Regular expression for **/
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<a name="line124">124 |</a> /** marker checking **/
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<a name="line125">125 |</a> char *oldpath, /** Old value of 'var' **/
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<a name="line126">126 |</a> *newpath, /** New value of 'var' **/
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<a name="line127">127 |</a> *sw_marker = APP_SW_MARKER, /** arbitrary default **/
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<a name="line128">128 |</a> *startp=NULL, *endp=NULL, /** regexp match endpts **/
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<a name="line129">129 |</a> *qualifiedpath, /** List of dirs which
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<a name="line130">130 |</a> aren't already in path **/
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<a name="line131">131 |</a> **pathlist; /** List of dirs **/
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<a name="line132">132 |</a> int append = 1, /** append or prepend **/
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<a name="line133">133 |</a> numpaths, /** number of dirs in path **/
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<a name="line134">134 |</a> qpathlen, /** qualifiedpath length **/
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<a name="line135">135 |</a> x; /** loop index **/
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<a name="line136">136 |</a>
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<a name="line137">137 |</a> #if WITH_DEBUGGING_CALLBACK
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<a name="line138">138 |</a> ErrorLogger( NO_ERR_START, LOC, _proc_cmdSetPath, NULL);
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<a name="line139">139 |</a> #endif
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<a name="line140">140 |</a>
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<a name="line141">141 |</a> /**
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<a name="line142">142 |</a> ** Whatis mode?
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<a name="line143">143 |</a> **/
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<a name="line144">144 |</a> if( g_flags & (M_WHATIS | M_HELP))
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<a name="line145">145 |</a> goto success0;
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<a name="line146">146 |</a>
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<a name="line147">147 |</a> /**
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<a name="line148">148 |</a> ** Check arguments. There should be give 3 args:
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<a name="line149">149 |</a> ** argv[0] - prepend/append
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<a name="line150">150 |</a> ** argv[1] - varname
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<a name="line151">151 |</a> ** argv[2] - value
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<a name="line152">152 |</a> **/
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<a name="line153">153 |</a> if(argc != 3)
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<a name="line154">154 |</a> if( OK != ErrorLogger(ERR_USAGE, LOC, argv[0],"path-variable directory",
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<a name="line155">155 |</a> NULL))
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<a name="line156">156 |</a> goto unwind0;
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<a name="line157">157 |</a>
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<a name="line158">158 |</a> /**
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<a name="line159">159 |</a> ** Should this guy be removed from the variable ... If yes, do so!
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<a name="line160">160 |</a> **/
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<a name="line161">161 |</a> if(g_flags & M_REMOVE)
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<a name="line162">162 |</a> return( cmdRemovePath(client_data, interp, argc, argv)); /** ----> **/
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<a name="line163">163 |</a>
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<a name="line164">164 |</a> /**
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<a name="line165">165 |</a> ** prepend or append. The default is append.
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<a name="line166">166 |</a> **/
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<a name="line167">167 |</a> if( !( append = !!strncmp( argv[0], "pre", 3)))
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<a name="line168">168 |</a> sw_marker = PRE_SW_MARKER;
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<a name="line169">169 |</a>
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<a name="line170">170 |</a> /**
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<a name="line171">171 |</a> ** Non-persist mode?
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<a name="line172">172 |</a> **/
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<a name="line173">173 |</a>
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<a name="line174">174 |</a> if (g_flags & M_NONPERSIST) {
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<a name="line175">175 |</a> return (TCL_OK);
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<a name="line176">176 |</a> }
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<a name="line177">177 |</a>
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<a name="line178">178 |</a> /**
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<a name="line179">179 |</a> ** Display only ... ok, let's do so!
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<a name="line180">180 |</a> **/
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<a name="line181">181 |</a> if(g_flags & M_DISPLAY) {
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<a name="line182">182 |</a> fprintf( stderr, "%s\t ", argv[ 0]);
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<a name="line183">183 |</a> while( --argc)
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<a name="line184">184 |</a> fprintf( stderr, "%s ", *++argv);
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<a name="line185">185 |</a> fprintf( stderr, "\n");
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<a name="line186">186 |</a> goto success0;
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<a name="line187">187 |</a> }
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<a name="line188">188 |</a>
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<a name="line189">189 |</a> /**
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<a name="line190">190 |</a> ** Get the old value of the variable. MANPATH defaults to "/usr/man".
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<a name="line191">191 |</a> ** Put a \ in front of each '.' and '+'.
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<a name="line192">192 |</a> ** (this is an intentional memory leak)
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<a name="line193">193 |</a> **/
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<a name="line194">194 |</a> oldpath = (char *) Tcl_GetVar2( interp, "env", argv[1], TCL_GLOBAL_ONLY);
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<a name="line195">195 |</a> _TCLCHK(interp)
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<a name="line196">196 |</a>
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<a name="line197">197 |</a> if( oldpath == NULL)
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<a name="line198">198 |</a> oldpath = !strcmp( argv[1], "MANPATH") ? "/usr/man" : "";
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<a name="line199">199 |</a>
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<a name="line200">200 |</a> /**
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<a name="line201">201 |</a> ** Split the new path into its components directories so each
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<a name="line202">202 |</a> ** directory can be checked to see whether it is already in the
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<a name="line203">203 |</a> ** existing path.
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<a name="line204">204 |</a> **/
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<a name="line205">205 |</a> if( !( pathlist = SplitIntoList( interp, (char *) argv[2], &numpaths)))
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<a name="line206">206 |</a> goto unwind0;
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<a name="line207">207 |</a>
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<a name="line208">208 |</a> /**
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<a name="line209">209 |</a> ** Some space for the list of paths which
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<a name="line210">210 |</a> ** are not already in the existing path.
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<a name="line211">211 |</a> **/
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<a name="line212">212 |</a> if((char *) NULL == (qualifiedpath = stringer(NULL,0, argv[2], ":", NULL)))
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<a name="line213">213 |</a> if( OK != ErrorLogger( ERR_STRING, LOC, NULL))
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<a name="line214">214 |</a> goto unwind1;
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<a name="line215">215 |</a>
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<a name="line216">216 |</a> qpathlen = strlen(qualifiedpath)+1;
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<a name="line217">217 |</a> *qualifiedpath = '\0'; /** make sure null for later **/
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<a name="line218">218 |</a>
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<a name="line219">219 |</a> for( x = 0; x < numpaths; x++) {
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<a name="line220">220 |</a>
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<a name="line221">221 |</a> cleanse_path( pathlist[x], buffer, PATH_BUFLEN);
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<a name="line222">222 |</a>
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<a name="line223">223 |</a> /**
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<a name="line224">224 |</a> ** Check to see if path is already in this path variable.
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<a name="line225">225 |</a> ** It could be at the
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<a name="line226">226 |</a> ** beginning ... ^path:
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<a name="line227">227 |</a> ** middle ... :path:
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<a name="line228">228 |</a> ** end ... :path$
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<a name="line229">229 |</a> ** only one ... ^path$
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<a name="line230">230 |</a> **/
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<a name="line231">231 |</a> if((char *) NULL == (newpath = stringer(NULL,0,
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<a name="line232">232 |</a> "(^", buffer, ":)|(:", buffer, ":)|(:",
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<a name="line233">233 |</a> buffer, "$)|(^", buffer, "$)",NULL)))
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<a name="line234">234 |</a> if( OK != ErrorLogger( ERR_STRING, LOC, NULL))
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<a name="line235">235 |</a> goto unwind2;
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<a name="line236">236 |</a>
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<a name="line237">237 |</a> chkexpPtr = Tcl_RegExpCompile(interp, newpath);
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<a name="line238">238 |</a> _TCLCHK(interp)
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<a name="line239">239 |</a> null_free((void *) &newpath);
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<a name="line240">240 |</a>
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<a name="line241">241 |</a> /**
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<a name="line242">242 |</a> ** If the directory is not already in the path,
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<a name="line243">243 |</a> ** add it to the qualified path.
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<a name="line244">244 |</a> **/
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<a name="line245">245 |</a> if( !Tcl_RegExpExec(interp, chkexpPtr, oldpath, oldpath))
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<a name="line246">246 |</a> if ((char *) NULL ==
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<a name="line247">247 |</a> stringer(qualifiedpath + strlen(qualifiedpath),
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<a name="line248">248 |</a> qpathlen - strlen(qualifiedpath),
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<a name="line249">249 |</a> pathlist[x], ":", NULL))
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<a name="line250">250 |</a> if( OK != ErrorLogger( ERR_STRING, LOC, NULL))
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<a name="line251">251 |</a> goto unwind2;
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<a name="line252">252 |</a>
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<a name="line253">253 |</a> } /** End of loop that checks for
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<a name="line254">254 |</a> ** already existent path
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<a name="line255">255 |</a> **/
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<a name="line256">256 |</a> /**
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<a name="line257">257 |</a> ** If all of the directories in the new path already exist,
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<a name="line258">258 |</a> ** exit doing nothing.
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<a name="line259">259 |</a> **/
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<a name="line260">260 |</a> if( ! *qualifiedpath)
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<a name="line261">261 |</a> goto success1;
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<a name="line262">262 |</a>
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<a name="line263">263 |</a> /* remove trailing ':' */
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<a name="line264">264 |</a> qualifiedpath[strlen(qualifiedpath) - 1] = '\0';
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<a name="line265">265 |</a>
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<a name="line266">266 |</a> /**
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<a name="line267">267 |</a> ** Some space for our newly created path.
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<a name="line268">268 |</a> ** We size at the oldpath plus the addition.
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<a name="line269">269 |</a> **/
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<a name="line270">270 |</a> if((char *)NULL == (newpath = stringer(NULL, strlen( oldpath) +
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<a name="line271">271 |</a> strlen(qualifiedpath) + 2,NULL)))
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<a name="line272">272 |</a> if( OK != ErrorLogger( ERR_STRING, LOC, NULL))
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<a name="line273">273 |</a> goto unwind2;
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<a name="line274">274 |</a> *newpath = '\0';
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<a name="line275">275 |</a>
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<a name="line276">276 |</a> /**
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<a name="line277">277 |</a> ** Easy job to do, if the old path has not been set up so far ...
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<a name="line278">278 |</a> **/
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<a name="line279">279 |</a> if( !strcmp( oldpath, "")) {
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<a name="line280">280 |</a> strcpy( newpath, qualifiedpath);
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<a name="line281">281 |</a>
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<a name="line282">282 |</a> /**
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<a name="line283">283 |</a> ** Otherwise we have to take care on prepending vs. appending ...
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<a name="line284">284 |</a> ** If there is a append or prepend marker within the variable (see
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<a name="line285">285 |</a> ** modules_def.h) the changes are made according to this markers. Other-
|
|
<a name="line286">286 |</a> ** wise append and prepend will be relative to the strings begin or end.
|
|
<a name="line287">287 |</a> **/
|
|
<a name="line288">288 |</a>
|
|
<a name="line289">289 |</a> } else {
|
|
<a name="line290">290 |</a>
|
|
<a name="line291">291 |</a> Tcl_RegExp markexpPtr = Tcl_RegExpCompile(interp, sw_marker);
|
|
<a name="line292">292 |</a> _TCLCHK(interp)
|
|
<a name="line293">293 |</a>
|
|
<a name="line294">294 |</a> strcpy( newpath, oldpath);
|
|
<a name="line295">295 |</a>
|
|
<a name="line296">296 |</a> if( Tcl_RegExpExec(interp, markexpPtr, oldpath, oldpath)) {
|
|
<a name="line297">297 |</a> _TCLCHK(interp)
|
|
<a name="line298">298 |</a> Tcl_RegExpRange(markexpPtr, 0,
|
|
<a name="line299">299 |</a> (CONST84 char **) &startp, (CONST84 char **) &endp);
|
|
<a name="line300">300 |</a>
|
|
<a name="line301">301 |</a> /**
|
|
<a name="line302">302 |</a> ** Append/Prepend marker found
|
|
<a name="line303">303 |</a> **/
|
|
<a name="line304">304 |</a> if( append) {
|
|
<a name="line305">305 |</a> char ch = *endp;
|
|
<a name="line306">306 |</a> *endp = '\0';
|
|
<a name="line307">307 |</a> strcpy(newpath, oldpath);
|
|
<a name="line308">308 |</a> if (newpath[strlen(newpath)-1] != ':') strcat(newpath, ":");
|
|
<a name="line309">309 |</a> strcat(newpath, qualifiedpath);
|
|
<a name="line310">310 |</a> *endp = ch;
|
|
<a name="line311">311 |</a> strcat(newpath, endp);
|
|
<a name="line312">312 |</a> } else {
|
|
<a name="line313">313 |</a> char ch = *startp;
|
|
<a name="line314">314 |</a> *startp = '\0';
|
|
<a name="line315">315 |</a> strcpy(newpath, oldpath);
|
|
<a name="line316">316 |</a> if (newpath[strlen(newpath)-1] != ':') strcat(newpath, ":");
|
|
<a name="line317">317 |</a> strcpy(newpath, qualifiedpath);
|
|
<a name="line318">318 |</a> if (*oldpath != ':') strcat(newpath, ":");
|
|
<a name="line319">319 |</a> strcat(newpath, oldpath);
|
|
<a name="line320">320 |</a> *startp = ch;
|
|
<a name="line321">321 |</a> strcat(newpath, startp);
|
|
<a name="line322">322 |</a> }
|
|
<a name="line323">323 |</a>
|
|
<a name="line324">324 |</a> } else {
|
|
<a name="line325">325 |</a>
|
|
<a name="line326">326 |</a> /**
|
|
<a name="line327">327 |</a> ** No marker set
|
|
<a name="line328">328 |</a> **/
|
|
<a name="line329">329 |</a> if( !append) {
|
|
<a name="line330">330 |</a> strcpy(newpath, qualifiedpath);
|
|
<a name="line331">331 |</a> if (*oldpath != ':') strcat(newpath, ":");
|
|
<a name="line332">332 |</a> strcat(newpath, oldpath);
|
|
<a name="line333">333 |</a> } else {
|
|
<a name="line334">334 |</a> strcpy(newpath, oldpath);
|
|
<a name="line335">335 |</a> if (newpath[strlen(newpath)-1] != ':') strcat(newpath, ":");
|
|
<a name="line336">336 |</a> strcat(newpath, qualifiedpath);
|
|
<a name="line337">337 |</a> }
|
|
<a name="line338">338 |</a>
|
|
<a name="line339">339 |</a> } /** if( marker) **/
|
|
<a name="line340">340 |</a>
|
|
<a name="line341">341 |</a> } /** if( strcmp) **/
|
|
<a name="line342">342 |</a>
|
|
<a name="line343">343 |</a> /**
|
|
<a name="line344">344 |</a> ** Now the new value to be set resides in 'newpath'. Set it up.
|
|
<a name="line345">345 |</a> **/
|
|
<a name="line346">346 |</a> moduleSetenv( interp, (char *) argv[1], newpath, 1);
|
|
<a name="line347">347 |</a> _TCLCHK(interp)
|
|
<a name="line348">348 |</a>
|
|
<a name="line349">349 |</a> #if WITH_DEBUGGING_CALLBACK
|
|
<a name="line350">350 |</a> ErrorLogger( NO_ERR_END, LOC, _proc_cmdSetPath, NULL);
|
|
<a name="line351">351 |</a> #endif
|
|
<a name="line352">352 |</a>
|
|
<a name="line353">353 |</a> /**
|
|
<a name="line354">354 |</a> ** Free resources
|
|
<a name="line355">355 |</a> **/
|
|
<a name="line356">356 |</a> null_free((void *) &newpath);
|
|
<a name="line357">357 |</a> success1:
|
|
<a name="line358">358 |</a> null_free((void *) &qualifiedpath);
|
|
<a name="line359">359 |</a> FreeList( pathlist, numpaths);
|
|
<a name="line360">360 |</a> success0:
|
|
<a name="line361">361 |</a> return( TCL_OK); /** -------- EXIT (SUCCESS) -------> **/
|
|
<a name="line362">362 |</a>
|
|
<a name="line363">363 |</a> unwind2:
|
|
<a name="line364">364 |</a> null_free((void *) &qualifiedpath);
|
|
<a name="line365">365 |</a> unwind1:
|
|
<a name="line366">366 |</a> FreeList( pathlist, numpaths);
|
|
<a name="line367">367 |</a> unwind0:
|
|
<a name="line368">368 |</a> return( TCL_ERROR); /** -------- EXIT (FAILURE) -------> **/
|
|
<a name="line369">369 |</a>
|
|
<a name="line370">370 |</a> } /** End of 'cmdSetPath' **/
|
|
<a name="line371">371 |</a>
|
|
<a name="line372">372 |</a> /*++++
|
|
<a name="line373">373 |</a> ** ** Function-Header ***************************************************** **
|
|
<a name="line374">374 |</a> ** **
|
|
<a name="line375">375 |</a> ** Function: cmdRemovePath **
|
|
<a name="line376">376 |</a> ** **
|
|
<a name="line377">377 |</a> ** Description: Remove the passed value (argv[2]) from the specified **
|
|
<a name="line378">378 |</a> ** variable (argv[1]). In case of switching this pro- **
|
|
<a name="line379">379 |</a> ** cedure removes markers from the path, too. argv[0] **
|
|
<a name="line380">380 |</a> ** specifies, if the append- or prepend-marker is af- **
|
|
<a name="line381">381 |</a> ** fected **
|
|
<a name="line382">382 |</a> ** **
|
|
<a name="line383">383 |</a> ** First Edition: 1991/10/23 **
|
|
<a name="line384">384 |</a> ** **
|
|
<a name="line385">385 |</a> ** Parameters: ClientData client_data **
|
|
<a name="line386">386 |</a> ** Tcl_Interp *interp According Tcl interp.**
|
|
<a name="line387">387 |</a> ** int argc Number of arguments **
|
|
<a name="line388">388 |</a> ** char *argv[] Argument array **
|
|
<a name="line389">389 |</a> ** **
|
|
<a name="line390">390 |</a> ** Result: int TCL_OK Successfull completion **
|
|
<a name="line391">391 |</a> ** TCL_ERROR Any error **
|
|
<a name="line392">392 |</a> ** **
|
|
<a name="line393">393 |</a> ** Attached Globals: g_flags These are set up accordingly before **
|
|
<a name="line394">394 |</a> ** this function is called in order to **
|
|
<a name="line395">395 |</a> ** control everything **
|
|
<a name="line396">396 |</a> ** **
|
|
<a name="line397">397 |</a> ** ************************************************************************ **
|
|
<a name="line398">398 |</a> ++++*/
|
|
<a name="line399">399 |</a>
|
|
<a name="line400">400 |</a> int cmdRemovePath( ClientData client_data,
|
|
<a name="line401">401 |</a> Tcl_Interp *interp,
|
|
<a name="line402">402 |</a> int argc,
|
|
<a name="line403">403 |</a> CONST84 char *argv[])
|
|
<a name="line404">404 |</a> {
|
|
<a name="line405">405 |</a> char *sw_marker = APP_SW_MARKER; /** arbitrary default **/
|
|
<a name="line406">406 |</a> char **pathlist; /** List of dirs **/
|
|
<a name="line407">407 |</a> int numpaths; /** number of dirs in path **/
|
|
<a name="line408">408 |</a> int x; /** loop index **/
|
|
<a name="line409">409 |</a>
|
|
<a name="line410">410 |</a>
|
|
<a name="line411">411 |</a> #if WITH_DEBUGGING_CALLBACK
|
|
<a name="line412">412 |</a> ErrorLogger( NO_ERR_START, LOC, _proc_cmdRemovePath, NULL);
|
|
<a name="line413">413 |</a> #endif
|
|
<a name="line414">414 |</a>
|
|
<a name="line415">415 |</a> /**
|
|
<a name="line416">416 |</a> ** Check arguments. There should be give 3 args:
|
|
<a name="line417">417 |</a> ** argv[0] - prepend/append/remove-path
|
|
<a name="line418">418 |</a> ** argv[1] - varname
|
|
<a name="line419">419 |</a> ** argv[2] - value
|
|
<a name="line420">420 |</a> **/
|
|
<a name="line421">421 |</a> if(argc != 3)
|
|
<a name="line422">422 |</a> if( OK != ErrorLogger(ERR_USAGE,LOC,argv[0],"path-variable directory",
|
|
<a name="line423">423 |</a> NULL))
|
|
<a name="line424">424 |</a> goto unwind0;
|
|
<a name="line425">425 |</a>
|
|
<a name="line426">426 |</a>
|
|
<a name="line427">427 |</a> /**
|
|
<a name="line428">428 |</a> ** Non-persist mode?
|
|
<a name="line429">429 |</a> **/
|
|
<a name="line430">430 |</a>
|
|
<a name="line431">431 |</a> if (g_flags & M_NONPERSIST) {
|
|
<a name="line432">432 |</a> return (TCL_OK);
|
|
<a name="line433">433 |</a> }
|
|
<a name="line434">434 |</a>
|
|
<a name="line435">435 |</a> /**
|
|
<a name="line436">436 |</a> ** Display only ... ok, let's do so!
|
|
<a name="line437">437 |</a> **/
|
|
<a name="line438">438 |</a> if(g_flags & M_DISPLAY) {
|
|
<a name="line439">439 |</a> fprintf( stderr, "%s\t ", argv[ 0]);
|
|
<a name="line440">440 |</a> while( --argc)
|
|
<a name="line441">441 |</a> fprintf( stderr, "%s ", *++argv);
|
|
<a name="line442">442 |</a> fprintf( stderr, "\n");
|
|
<a name="line443">443 |</a> goto success0;
|
|
<a name="line444">444 |</a> }
|
|
<a name="line445">445 |</a>
|
|
<a name="line446">446 |</a> /**
|
|
<a name="line447">447 |</a> ** prepend or append. The default is append.
|
|
<a name="line448">448 |</a> **/
|
|
<a name="line449">449 |</a> if( ! strncmp( argv[0], "pre", 3))
|
|
<a name="line450">450 |</a> sw_marker = PRE_SW_MARKER;
|
|
<a name="line451">451 |</a>
|
|
<a name="line452">452 |</a> /**
|
|
<a name="line453">453 |</a> ** For switch state3, we're looking to remove the markers.
|
|
<a name="line454">454 |</a> **/
|
|
<a name="line455">455 |</a> if( g_flags & M_SWSTATE3)
|
|
<a name="line456">456 |</a> argv[2] = sw_marker;
|
|
<a name="line457">457 |</a>
|
|
<a name="line458">458 |</a> /**
|
|
<a name="line459">459 |</a> ** Split the path into its components so each item can be removed
|
|
<a name="line460">460 |</a> ** individually from the variable.
|
|
<a name="line461">461 |</a> **/
|
|
<a name="line462">462 |</a> if( !( pathlist = SplitIntoList( interp, (char *) argv[2], &numpaths)))
|
|
<a name="line463">463 |</a> goto unwind0;
|
|
<a name="line464">464 |</a>
|
|
<a name="line465">465 |</a> /**
|
|
<a name="line466">466 |</a> ** Remove each item individually
|
|
<a name="line467">467 |</a> **/
|
|
<a name="line468">468 |</a> for( x = 0; x < numpaths; x++)
|
|
<a name="line469">469 |</a> if(TCL_OK != Remove_Path(interp,(char *) argv[1],pathlist[x],sw_marker))
|
|
<a name="line470">470 |</a> goto unwind1;
|
|
<a name="line471">471 |</a>
|
|
<a name="line472">472 |</a> #if WITH_DEBUGGING_CALLBACK
|
|
<a name="line473">473 |</a> ErrorLogger( NO_ERR_END, LOC, _proc_cmdRemovePath, NULL);
|
|
<a name="line474">474 |</a> #endif
|
|
<a name="line475">475 |</a>
|
|
<a name="line476">476 |</a> /**
|
|
<a name="line477">477 |</a> ** Free resources
|
|
<a name="line478">478 |</a> **/
|
|
<a name="line479">479 |</a> FreeList(pathlist, numpaths);
|
|
<a name="line480">480 |</a>
|
|
<a name="line481">481 |</a> success0:
|
|
<a name="line482">482 |</a> return( TCL_OK); /** -------- EXIT (SUCCESS) -------> **/
|
|
<a name="line483">483 |</a>
|
|
<a name="line484">484 |</a> unwind1:
|
|
<a name="line485">485 |</a> FreeList(pathlist, numpaths);
|
|
<a name="line486">486 |</a> unwind0:
|
|
<a name="line487">487 |</a> return( TCL_ERROR); /** -------- EXIT (FAILURE) -------> **/
|
|
<a name="line488">488 |</a>
|
|
<a name="line489">489 |</a> } /** End of 'cmdRemovePath' **/
|
|
<a name="line490">490 |</a>
|
|
<a name="line491">491 |</a> /*++++
|
|
<a name="line492">492 |</a> ** ** Function-Header ***************************************************** **
|
|
<a name="line493">493 |</a> ** **
|
|
<a name="line494">494 |</a> ** Function: Remove_Path **
|
|
<a name="line495">495 |</a> ** **
|
|
<a name="line496">496 |</a> ** Description: This function actually does the work of removing **
|
|
<a name="line497">497 |</a> ** the item from the path. It is done this way to **
|
|
<a name="line498">498 |</a> ** support multiple items (often directories) **
|
|
<a name="line499">499 |</a> ** separated by colons in the variable value. **
|
|
<a name="line500">500 |</a> ** **
|
|
<a name="line501">501 |</a> ** First Edition: 2001/08/08 **
|
|
<a name="line502">502 |</a> ** **
|
|
<a name="line503">503 |</a> ** Parameters: Tcl_Interp *interp According Tcl interp.**
|
|
<a name="line504">504 |</a> ** char *variable Variable from which **
|
|
<a name="line505">505 |</a> ** to remove item **
|
|
<a name="line506">506 |</a> ** char *item Item to remove **
|
|
<a name="line507">507 |</a> ** char *sw_marker Switch marker **
|
|
<a name="line508">508 |</a> ** **
|
|
<a name="line509">509 |</a> ** Result: int TCL_OK Successfull completion **
|
|
<a name="line510">510 |</a> ** TCL_ERROR Any error **
|
|
<a name="line511">511 |</a> ** **
|
|
<a name="line512">512 |</a> ** Attached Globals: g_flags These are set up accordingly before **
|
|
<a name="line513">513 |</a> ** this function is called in order to **
|
|
<a name="line514">514 |</a> ** control everything **
|
|
<a name="line515">515 |</a> ** **
|
|
<a name="line516">516 |</a> ** ************************************************************************ **
|
|
<a name="line517">517 |</a> ++++*/
|
|
<a name="line518">518 |</a>
|
|
<a name="line519">519 |</a> static int Remove_Path( Tcl_Interp *interp,
|
|
<a name="line520">520 |</a> char *variable,
|
|
<a name="line521">521 |</a> char *item,
|
|
<a name="line522">522 |</a> char *sw_marker)
|
|
<a name="line523">523 |</a> {
|
|
<a name="line524">524 |</a> char *oldpath, /** Old value of 'var' **/
|
|
<a name="line525">525 |</a> *tmppath, /** Temp. buffer for 'var' **/
|
|
<a name="line526">526 |</a> *searchpath,
|
|
<a name="line527">527 |</a> *startp=NULL, *endp=NULL; /** regexp match endpts **/
|
|
<a name="line528">528 |</a> int start_offset = 0, /** match offsets **/
|
|
<a name="line529">529 |</a> end_offset = 0,
|
|
<a name="line530">530 |</a> path_len = 0; /** length of unmatched path **/
|
|
<a name="line531">531 |</a> Tcl_RegExp regexpPtr = (Tcl_RegExp) NULL,
|
|
<a name="line532">532 |</a> begexpPtr = (Tcl_RegExp) NULL,
|
|
<a name="line533">533 |</a> midexpPtr = (Tcl_RegExp) NULL,
|
|
<a name="line534">534 |</a> endexpPtr = (Tcl_RegExp) NULL,
|
|
<a name="line535">535 |</a> onlyexpPtr = (Tcl_RegExp) NULL,
|
|
<a name="line536">536 |</a> markexpPtr = (Tcl_RegExp) NULL;
|
|
<a name="line537">537 |</a>
|
|
<a name="line538">538 |</a> #if WITH_DEBUGGING_CALLBACK
|
|
<a name="line539">539 |</a> ErrorLogger( NO_ERR_START, LOC, _proc_Remove_Path, NULL);
|
|
<a name="line540">540 |</a> #endif
|
|
<a name="line541">541 |</a>
|
|
<a name="line542">542 |</a> /**
|
|
<a name="line543">543 |</a> ** Get the current value of the "PATH" environment variable
|
|
<a name="line544">544 |</a> **/
|
|
<a name="line545">545 |</a> if( NULL == (tmppath = (char *) Tcl_GetVar2( interp, "env", variable,
|
|
<a name="line546">546 |</a> TCL_GLOBAL_ONLY))) {
|
|
<a name="line547">547 |</a> _TCLCHK(interp)
|
|
<a name="line548">548 |</a> return( TCL_OK); /** -------- EXIT (SUCCESS) -------> **/
|
|
<a name="line549">549 |</a> }
|
|
<a name="line550">550 |</a>
|
|
<a name="line551">551 |</a> /**
|
|
<a name="line552">552 |</a> ** We want to make a local copy of old path because we're going
|
|
<a name="line553">553 |</a> ** to be butchering it and the environ one doesn't need to be
|
|
<a name="line554">554 |</a> ** changed in this manner.
|
|
<a name="line555">555 |</a> ** Put a \ in front of each . and + in the passed value to remove.
|
|
<a name="line556">556 |</a> **/
|
|
<a name="line557">557 |</a> if((char *) NULL == (oldpath = stringer(NULL,0, tmppath, NULL)))
|
|
<a name="line558">558 |</a> if( OK != ErrorLogger( ERR_STRING, LOC, NULL))
|
|
<a name="line559">559 |</a> goto unwind0;
|
|
<a name="line560">560 |</a> path_len = strlen(oldpath);
|
|
<a name="line561">561 |</a> cleanse_path( item, buffer, PATH_BUFLEN);
|
|
<a name="line562">562 |</a>
|
|
<a name="line563">563 |</a> /**
|
|
<a name="line564">564 |</a> ** Now we need to find it in the path variable. So, we create
|
|
<a name="line565">565 |</a> ** space enough to build search expressions.
|
|
<a name="line566">566 |</a> **/
|
|
<a name="line567">567 |</a> if((char *) NULL == (searchpath = stringer(NULL,0,"^", buffer, ":", NULL)))
|
|
<a name="line568">568 |</a> if( OK != ErrorLogger( ERR_STRING, LOC, NULL))
|
|
<a name="line569">569 |</a> goto unwind1;
|
|
<a name="line570">570 |</a>
|
|
<a name="line571">571 |</a> /**
|
|
<a name="line572">572 |</a> ** This section searches for the oldpath in the PATH variable.
|
|
<a name="line573">573 |</a> ** There are four cases because the colons must be used as markers
|
|
<a name="line574">574 |</a> ** in order to guarantee that a partial match isn't being found.
|
|
<a name="line575">575 |</a> **
|
|
<a name="line576">576 |</a> ** The start_offset and end_offset variables indicate how much to
|
|
<a name="line577">577 |</a> ** cut or not to cut off of each end of the located
|
|
<a name="line578">578 |</a> ** string. They differ for each case...beginning of
|
|
<a name="line579">579 |</a> ** the path, middle of the path, end of the path,
|
|
<a name="line580">580 |</a> ** and for the only path.
|
|
<a name="line581">581 |</a> **
|
|
<a name="line582">582 |</a> ** This is to ensure the colons get cut off properly.
|
|
<a name="line583">583 |</a> **/
|
|
<a name="line584">584 |</a>
|
|
<a name="line585">585 |</a> begexpPtr = Tcl_RegExpCompile(interp, searchpath);
|
|
<a name="line586">586 |</a> _TCLCHK(interp)
|
|
<a name="line587">587 |</a>
|
|
<a name="line588">588 |</a> if( Tcl_RegExpExec(interp, begexpPtr, oldpath, oldpath) > 0) {
|
|
<a name="line589">589 |</a> _TCLCHK(interp)
|
|
<a name="line590">590 |</a> regexpPtr = begexpPtr;
|
|
<a name="line591">591 |</a>
|
|
<a name="line592">592 |</a> /**
|
|
<a name="line593">593 |</a> ** Copy from the beginning of the startp to one
|
|
<a name="line594">594 |</a> ** character before endp
|
|
<a name="line595">595 |</a> **/
|
|
<a name="line596">596 |</a>
|
|
<a name="line597">597 |</a> Tcl_RegExpRange(begexpPtr, 0,
|
|
<a name="line598">598 |</a> (CONST84 char **) &startp, (CONST84 char **) &endp);
|
|
<a name="line599">599 |</a> start_offset = 0; end_offset = -1;
|
|
<a name="line600">600 |</a> path_len -= (endp - startp - 1);
|
|
<a name="line601">601 |</a>
|
|
<a name="line602">602 |</a> } else {
|
|
<a name="line603">603 |</a>
|
|
<a name="line604">604 |</a> *searchpath = ':'; /* :buffer: */
|
|
<a name="line605">605 |</a> midexpPtr = Tcl_RegExpCompile(interp, searchpath);
|
|
<a name="line606">606 |</a> _TCLCHK(interp)
|
|
<a name="line607">607 |</a>
|
|
<a name="line608">608 |</a> if( Tcl_RegExpExec(interp, midexpPtr, oldpath, oldpath) > 0) {
|
|
<a name="line609">609 |</a> _TCLCHK(interp)
|
|
<a name="line610">610 |</a> regexpPtr = midexpPtr;
|
|
<a name="line611">611 |</a>
|
|
<a name="line612">612 |</a> /**
|
|
<a name="line613">613 |</a> ** Copy from one character after stringp[0] to one
|
|
<a name="line614">614 |</a> ** character before endp[0]
|
|
<a name="line615">615 |</a> **/
|
|
<a name="line616">616 |</a>
|
|
<a name="line617">617 |</a> Tcl_RegExpRange(midexpPtr, 0,
|
|
<a name="line618">618 |</a> (CONST84 char **) &startp, (CONST84 char **) &endp);
|
|
<a name="line619">619 |</a> start_offset = 1; end_offset = -1;
|
|
<a name="line620">620 |</a> path_len -= (endp - startp - 2);
|
|
<a name="line621">621 |</a>
|
|
<a name="line622">622 |</a> } else {
|
|
<a name="line623">623 |</a>
|
|
<a name="line624">624 |</a> searchpath[strlen(searchpath)-1] = '$'; /* :buffer$ */
|
|
<a name="line625">625 |</a> endexpPtr = Tcl_RegExpCompile(interp, searchpath);
|
|
<a name="line626">626 |</a> _TCLCHK(interp)
|
|
<a name="line627">627 |</a>
|
|
<a name="line628">628 |</a> if( Tcl_RegExpExec(interp, endexpPtr, oldpath, oldpath) > 0) {
|
|
<a name="line629">629 |</a> _TCLCHK(interp)
|
|
<a name="line630">630 |</a> regexpPtr = endexpPtr;
|
|
<a name="line631">631 |</a>
|
|
<a name="line632">632 |</a> /**
|
|
<a name="line633">633 |</a> ** Copy from one character after stringp[0]
|
|
<a name="line634">634 |</a> ** through endp[0]
|
|
<a name="line635">635 |</a> **/
|
|
<a name="line636">636 |</a>
|
|
<a name="line637">637 |</a> Tcl_RegExpRange(endexpPtr, 0,
|
|
<a name="line638">638 |</a> (CONST84 char **) &startp, (CONST84 char **) &endp);
|
|
<a name="line639">639 |</a> start_offset = 0; end_offset = 0;
|
|
<a name="line640">640 |</a> path_len -= (endp - startp - 1);
|
|
<a name="line641">641 |</a>
|
|
<a name="line642">642 |</a> } else {
|
|
<a name="line643">643 |</a>
|
|
<a name="line644">644 |</a> *searchpath = '^'; /* ^buffer$ */
|
|
<a name="line645">645 |</a> onlyexpPtr = Tcl_RegExpCompile(interp, searchpath);
|
|
<a name="line646">646 |</a> _TCLCHK(interp)
|
|
<a name="line647">647 |</a>
|
|
<a name="line648">648 |</a> if(Tcl_RegExpExec(interp, onlyexpPtr, oldpath, oldpath) > 0) {
|
|
<a name="line649">649 |</a> _TCLCHK(interp)
|
|
<a name="line650">650 |</a>
|
|
<a name="line651">651 |</a> /**
|
|
<a name="line652">652 |</a> ** In this case, I should go ahead and unset the variable
|
|
<a name="line653">653 |</a> ** from the environment because I'm removing the very last
|
|
<a name="line654">654 |</a> ** path.
|
|
<a name="line655">655 |</a> **
|
|
<a name="line656">656 |</a> ** First I'm going to clear the variable from the
|
|
<a name="line657">657 |</a> ** setenvHashTable just in case its already been altered
|
|
<a name="line658">658 |</a> ** and had a significant value at the time. It's very
|
|
<a name="line659">659 |</a> ** possible that I'm removing the only two or three paths
|
|
<a name="line660">660 |</a> ** from this variable. If that's the case, then all the
|
|
<a name="line661">661 |</a> ** earlier paths were marked for output in this hashTable.
|
|
<a name="line662">662 |</a> **
|
|
<a name="line663">663 |</a> ** Secondly, I actually mark the the environment variable
|
|
<a name="line664">664 |</a> ** to be unset when output.
|
|
<a name="line665">665 |</a> **/
|
|
<a name="line666">666 |</a> clear_hash_value( setenvHashTable, variable);
|
|
<a name="line667">667 |</a> moduleUnsetenv( interp, variable);
|
|
<a name="line668">668 |</a>
|
|
<a name="line669">669 |</a> /**
|
|
<a name="line670">670 |</a> ** moduleUnsetenv doesn't unset the variable in the Tcl
|
|
<a name="line671">671 |</a> ** space because the $env variable might need to be
|
|
<a name="line672">672 |</a> ** used again in the modulefile for locating other
|
|
<a name="line673">673 |</a> ** paths. BUT, since this was a path-type environment
|
|
<a name="line674">674 |</a> ** variable, the user is expecting this to be empty
|
|
<a name="line675">675 |</a> ** after removing the only remaining path. So, I set
|
|
<a name="line676">676 |</a> ** the variable empty here.
|
|
<a name="line677">677 |</a> **/
|
|
<a name="line678">678 |</a> (void) Tcl_SetVar2( interp, "env", variable, "",
|
|
<a name="line679">679 |</a> TCL_GLOBAL_ONLY);
|
|
<a name="line680">680 |</a> _TCLCHK(interp)
|
|
<a name="line681">681 |</a> null_free((void *) &searchpath);
|
|
<a name="line682">682 |</a> goto success1;
|
|
<a name="line683">683 |</a> }
|
|
<a name="line684">684 |</a> }
|
|
<a name="line685">685 |</a> }
|
|
<a name="line686">686 |</a> }
|
|
<a name="line687">687 |</a> null_free((void *) &searchpath);
|
|
<a name="line688">688 |</a>
|
|
<a name="line689">689 |</a> /**
|
|
<a name="line690">690 |</a> ** If I couldn't find it assume it wasn't there
|
|
<a name="line691">691 |</a> ** and return.
|
|
<a name="line692">692 |</a> **/
|
|
<a name="line693">693 |</a> if( !regexpPtr)
|
|
<a name="line694">694 |</a> goto success1;
|
|
<a name="line695">695 |</a>
|
|
<a name="line696">696 |</a> markexpPtr = Tcl_RegExpCompile(interp, sw_marker);
|
|
<a name="line697">697 |</a> _TCLCHK(interp)
|
|
<a name="line698">698 |</a>
|
|
<a name="line699">699 |</a> /**
|
|
<a name="line700">700 |</a> ** In state1, we're actually replacing old paths with
|
|
<a name="line701">701 |</a> ** the markers for future appends and prepends.
|
|
<a name="line702">702 |</a> **
|
|
<a name="line703">703 |</a> ** We only want to do this once to mark the location
|
|
<a name="line704">704 |</a> ** the module was formed around.
|
|
<a name="line705">705 |</a> **/
|
|
<a name="line706">706 |</a> if((g_flags & M_SWSTATE1) && ! (Tcl_RegExpExec(interp,
|
|
<a name="line707">707 |</a> markexpPtr, oldpath, oldpath) > 0)) {
|
|
<a name="line708">708 |</a>
|
|
<a name="line709">709 |</a> /**
|
|
<a name="line710">710 |</a> ** If I don't have enough space to replace the oldpath with the
|
|
<a name="line711">711 |</a> ** marker, then I must create space for the marker and thus
|
|
<a name="line712">712 |</a> ** recreate the PATH variable.
|
|
<a name="line713">713 |</a> **/
|
|
<a name="line714">714 |</a> char* newenv;
|
|
<a name="line715">715 |</a> int newlen = path_len + strlen(sw_marker) + 1;
|
|
<a name="line716">716 |</a>
|
|
<a name="line717">717 |</a> if((char *) NULL==(newenv = stringer(NULL, newlen ,NULL) ))
|
|
<a name="line718">718 |</a> if( OK != ErrorLogger( ERR_STRING, LOC, NULL))
|
|
<a name="line719">719 |</a> goto unwind1;
|
|
<a name="line720">720 |</a>
|
|
<a name="line721">721 |</a> *(startp + start_offset) = '\0';
|
|
<a name="line722">722 |</a>
|
|
<a name="line723">723 |</a> if(*(endp + end_offset) == '\0') {
|
|
<a name="line724">724 |</a> (void) stringer(newenv, newlen, oldpath,":",sw_marker,NULL);
|
|
<a name="line725">725 |</a> } else {
|
|
<a name="line726">726 |</a> (void) stringer(newenv, newlen, oldpath,sw_marker,
|
|
<a name="line727">727 |</a> endp + end_offset, NULL);
|
|
<a name="line728">728 |</a> }
|
|
<a name="line729">729 |</a>
|
|
<a name="line730">730 |</a> /**
|
|
<a name="line731">731 |</a> ** Just store the value with the marker into the environment. I'm not
|
|
<a name="line732">732 |</a> ** checking if it changed because the only case that a PATH-type
|
|
<a name="line733">733 |</a> ** variable will be unset is when I remove the only path remaining in
|
|
<a name="line734">734 |</a> ** the variable. So, using moduleSetenv is not necessary here.
|
|
<a name="line735">735 |</a> **/
|
|
<a name="line736">736 |</a> Tcl_SetVar2( interp, "env", variable, newenv, TCL_GLOBAL_ONLY);
|
|
<a name="line737">737 |</a> _TCLCHK(interp)
|
|
<a name="line738">738 |</a> null_free((void *) &newenv);
|
|
<a name="line739">739 |</a>
|
|
<a name="line740">740 |</a> } else { /** SW_STATE1 **/
|
|
<a name="line741">741 |</a>
|
|
<a name="line742">742 |</a> /**
|
|
<a name="line743">743 |</a> ** We must be in SW_STATE3 or not in SW_STATE at all.
|
|
<a name="line744">744 |</a> ** Removing the marker should be just like removing any other path.
|
|
<a name="line745">745 |</a> **/
|
|
<a name="line746">746 |</a> strcpy( startp + start_offset, endp);
|
|
<a name="line747">747 |</a>
|
|
<a name="line748">748 |</a> /**
|
|
<a name="line749">749 |</a> ** Cache the set. Clear the variable from the unset table just
|
|
<a name="line750">750 |</a> ** in case it was previously unset.
|
|
<a name="line751">751 |</a> **/
|
|
<a name="line752">752 |</a> store_hash_value( setenvHashTable, variable, oldpath);
|
|
<a name="line753">753 |</a> clear_hash_value( unsetenvHashTable, variable);
|
|
<a name="line754">754 |</a>
|
|
<a name="line755">755 |</a> /**
|
|
<a name="line756">756 |</a> ** Store the new PATH value into the environment.
|
|
<a name="line757">757 |</a> **/
|
|
<a name="line758">758 |</a> Tcl_SetVar2( interp, "env", variable, oldpath, TCL_GLOBAL_ONLY);
|
|
<a name="line759">759 |</a> _TCLCHK(interp)
|
|
<a name="line760">760 |</a>
|
|
<a name="line761">761 |</a> } /** ! SW_STATE1 **/
|
|
<a name="line762">762 |</a>
|
|
<a name="line763">763 |</a> #if WITH_DEBUGGING_CALLBACK
|
|
<a name="line764">764 |</a> ErrorLogger( NO_ERR_END, LOC, _proc_cmdRemovePath, NULL);
|
|
<a name="line765">765 |</a> #endif
|
|
<a name="line766">766 |</a>
|
|
<a name="line767">767 |</a> /**
|
|
<a name="line768">768 |</a> ** Free what has been used and return on success
|
|
<a name="line769">769 |</a> **/
|
|
<a name="line770">770 |</a> success1:
|
|
<a name="line771">771 |</a> null_free((void *) &oldpath);
|
|
<a name="line772">772 |</a> success0:
|
|
<a name="line773">773 |</a> return( TCL_OK); /** -------- EXIT (SUCCESS) -------> **/
|
|
<a name="line774">774 |</a>
|
|
<a name="line775">775 |</a> unwind1:
|
|
<a name="line776">776 |</a> null_free((void *) &oldpath);
|
|
<a name="line777">777 |</a> unwind0:
|
|
<a name="line778">778 |</a> return( TCL_ERROR); /** -------- EXIT (FAILURE) -------> **/
|
|
<a name="line779">779 |</a>
|
|
<a name="line780">780 |</a> } /** End of 'Remove_Path' **/
|
|
</pre>
|
|
|
|
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|