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/*
* pathnames.c - syslogd implementation for windows, miscellaneous functions
* operating with file names and paths
*
* Created by Alexander Yaworsky
*
* THIS SOFTWARE IS NOT COPYRIGHTED
*
* This source code is offered for use in the public domain. You may
* use, modify or distribute it freely.
*
* This code is distributed in the hope that it will be useful but
* WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
* DISCLAIMED. This includes but is not limited to warranties of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <windows.h>
#include <glib.h>
#include <syslog.h>
#include <syslogd.h>
/******************************************************************************
* make_absolute_log_pathname
*
* Make absolute pathname inside logdir.
*/
gchar* make_absolute_log_pathname( char* path_appendix )
{
gchar *path, *ret;
if( logdir && g_path_is_absolute( logdir ) )
path = g_strdup( logdir );
else
{
gchar *dir = g_path_get_dirname( __argv[0] );
path = g_build_filename( dir, logdir, NULL );
g_free( dir );
}
ret = g_build_filename( path, path_appendix, NULL );
g_free( path );
return ret;
}
/******************************************************************************
* create_directories
*
* Create all the directories in pathname.
*/
void create_directories( gchar* pathname )
{
gchar *p;
gchar saved;
TRACE_ENTER( "%s\n", pathname );
p = (gchar*) g_path_skip_root( pathname );
if( !p )
p = pathname;
for(;;)
{
while( *p != '\0' && *p != '/' && *p != '\\' )
p++;
if( *p == '\0' )
break;
saved = *p;
*p = '\0';
CreateDirectory( pathname, NULL );
*p++ = saved;
}
TRACE_LEAVE( "done\n" );
}
/******************************************************************************
* normalize_pathname
*
* Remove . and .. from pathname.
* Pathname should be in UTF-8 encoding.
* Return NULL if pathname is invalid or normalized pathname
* in locale encoding.
*/
gchar* normalize_pathname( const gchar* pathname )
{
gchar *ret = g_locale_from_utf8( pathname, -1, NULL, NULL, NULL );
gchar *first_element, *current_element, *next_element;
TRACE_ENTER( "%s\n", ret );
first_element = (gchar*) g_path_skip_root( ret );
if( !first_element )
first_element = ret;
for( current_element = first_element; *current_element != '\0'; )
{
next_element = current_element;
while( *next_element != '\0' && *next_element != '/' && *next_element != '\\' )
next_element++;
if( *next_element != '\0' )
next_element++; /* skip separator */
if( current_element[0] != '.' )
current_element = next_element;
else
{
if( current_element[1] == '/'
|| current_element[1] == '\\' || current_element[1] == '\0' )
/* /./ remove current element */
memmove( current_element, next_element, strlen( next_element ) + 1 );
else if( current_element[1] == '.'
&& (current_element[2] == '/'
|| current_element[2] == '\\' || current_element[2] == '\0') )
{
/* /../ find and remove previous element */
gchar *prev_element = current_element - 2;
if( prev_element < first_element )
{
ERR( "Invalid pathname: %s\n", pathname );
g_free( ret );
ret = NULL;
break;
}
while( prev_element > first_element && *prev_element != '/' && *prev_element != '\\' )
prev_element--;
if( prev_element > first_element )
prev_element++; /* skip separator */
memmove( prev_element, next_element, strlen( next_element ) + 1 );
current_element = prev_element;
}
else
current_element = next_element;
}
}
TRACE_LEAVE( "ret=%s\n", ret? ret : "NULL" );
return ret;
}
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