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-rw-r--r--jam-files/engine/pathunix.c457
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diff --git a/jam-files/engine/pathunix.c b/jam-files/engine/pathunix.c
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-/*
- * Copyright 1993-2002 Christopher Seiwald and Perforce Software, Inc.
- *
- * This file is part of Jam - see jam.c for Copyright information.
- */
-
-/* This file is ALSO:
- * Copyright 2001-2004 David Abrahams.
- * Copyright 2005 Rene Rivera.
- * Distributed under the Boost Software License, Version 1.0.
- * (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
- */
-
-# include "jam.h"
-# include "pathsys.h"
-# include "strings.h"
-# include "newstr.h"
-# include "filesys.h"
-# include <time.h>
-# include <stdlib.h>
-# ifndef OS_NT
-# include <unistd.h>
-# endif
-
-# ifdef USE_PATHUNIX
-
-/*
- * pathunix.c - manipulate file names on UNIX, NT, OS2, AmigaOS
- *
- * External routines:
- *
- * path_parse() - split a file name into dir/base/suffix/member
- * path_build() - build a filename given dir/base/suffix/member
- * path_parent() - make a PATHNAME point to its parent dir
- *
- * File_parse() and path_build() just manipuate a string and a structure;
- * they do not make system calls.
- *
- * 04/08/94 (seiwald) - Coherent/386 support added.
- * 12/26/93 (seiwald) - handle dir/.suffix properly in path_build()
- * 12/19/94 (mikem) - solaris string table insanity support
- * 12/21/94 (wingerd) Use backslashes for pathnames - the NT way.
- * 02/14/95 (seiwald) - parse and build /xxx properly
- * 02/23/95 (wingerd) Compilers on NT can handle "/" in pathnames, so we
- * should expect hdr searches to come up with strings
- * like "thing/thing.h". So we need to test for "/" as
- * well as "\" when parsing pathnames.
- * 03/16/95 (seiwald) - fixed accursed typo on line 69.
- * 05/03/96 (seiwald) - split from filent.c, fileunix.c
- * 12/20/96 (seiwald) - when looking for the rightmost . in a file name,
- * don't include the archive member name.
- * 01/13/01 (seiwald) - turn on \ handling on UNIX, on by accident
- */
-
-/*
- * path_parse() - split a file name into dir/base/suffix/member
- */
-
-void path_parse( char * file, PATHNAME * f )
-{
- char * p;
- char * q;
- char * end;
-
- memset( (char *)f, 0, sizeof( *f ) );
-
- /* Look for <grist> */
-
- if ( ( file[0] == '<' ) && ( p = strchr( file, '>' ) ) )
- {
- f->f_grist.ptr = file;
- f->f_grist.len = p - file;
- file = p + 1;
- }
-
- /* Look for dir/ */
-
- p = strrchr( file, '/' );
-
-# if PATH_DELIM == '\\'
- /* On NT, look for dir\ as well */
- {
- char *p1 = strrchr( file, '\\' );
- p = p1 > p ? p1 : p;
- }
-# endif
-
- if ( p )
- {
- f->f_dir.ptr = file;
- f->f_dir.len = p - file;
-
- /* Special case for / - dirname is /, not "" */
-
- if ( !f->f_dir.len )
- f->f_dir.len = 1;
-
-# if PATH_DELIM == '\\'
- /* Special case for D:/ - dirname is D:/, not "D:" */
-
- if ( f->f_dir.len == 2 && file[1] == ':' )
- f->f_dir.len = 3;
-# endif
-
- file = p + 1;
- }
-
- end = file + strlen( file );
-
- /* Look for (member) */
-
- if ( ( p = strchr( file, '(' ) ) && ( end[ -1 ] == ')' ) )
- {
- f->f_member.ptr = p + 1;
- f->f_member.len = end - p - 2;
- end = p;
- }
-
- /* Look for .suffix */
- /* This would be memrchr() */
-
- p = 0;
- q = file;
-
- while ( ( q = (char *)memchr( q, '.', end - q ) ) )
- p = q++;
-
- if ( p )
- {
- f->f_suffix.ptr = p;
- f->f_suffix.len = end - p;
- end = p;
- }
-
- /* Leaves base */
-
- f->f_base.ptr = file;
- f->f_base.len = end - file;
-}
-
-/*
- * path_delims - the string of legal path delimiters
- */
-static char path_delims[] = {
- PATH_DELIM,
-# if PATH_DELIM == '\\'
- '/',
-# endif
- 0
-};
-
-/*
- * is_path_delim() - true iff c is a path delimiter
- */
-static int is_path_delim( char c )
-{
- char* p = strchr( path_delims, c );
- return p && *p;
-}
-
-/*
- * as_path_delim() - convert c to a path delimiter if it isn't one
- * already
- */
-static char as_path_delim( char c )
-{
- return is_path_delim( c ) ? c : PATH_DELIM;
-}
-
-/*
- * path_build() - build a filename given dir/base/suffix/member
- *
- * To avoid changing slash direction on NT when reconstituting paths,
- * instead of unconditionally appending PATH_DELIM we check the
- * past-the-end character of the previous path element. If it is in
- * path_delims, we append that, and only append PATH_DELIM as a last
- * resort. This heuristic is based on the fact that PATHNAME objects
- * are usually the result of calling path_parse, which leaves the
- * original slashes in the past-the-end position. Correctness depends
- * on the assumption that all strings are zero terminated, so a
- * past-the-end character will always be available.
- *
- * As an attendant patch, we had to ensure that backslashes are used
- * explicitly in timestamp.c
- */
-
-void
-path_build(
- PATHNAME *f,
- string *file,
- int binding )
-{
- file_build1( f, file );
-
- /* Don't prepend root if it's . or directory is rooted */
-# if PATH_DELIM == '/'
-
- if ( f->f_root.len
- && !( f->f_root.len == 1 && f->f_root.ptr[0] == '.' )
- && !( f->f_dir.len && f->f_dir.ptr[0] == '/' ) )
-
-# else /* unix */
-
- if ( f->f_root.len
- && !( f->f_root.len == 1 && f->f_root.ptr[0] == '.' )
- && !( f->f_dir.len && f->f_dir.ptr[0] == '/' )
- && !( f->f_dir.len && f->f_dir.ptr[0] == '\\' )
- && !( f->f_dir.len && f->f_dir.ptr[1] == ':' ) )
-
-# endif /* unix */
-
- {
- string_append_range( file, f->f_root.ptr, f->f_root.ptr + f->f_root.len );
- /* If 'root' already ends with path delimeter,
- don't add yet another one. */
- if ( ! is_path_delim( f->f_root.ptr[f->f_root.len-1] ) )
- string_push_back( file, as_path_delim( f->f_root.ptr[f->f_root.len] ) );
- }
-
- if ( f->f_dir.len )
- string_append_range( file, f->f_dir.ptr, f->f_dir.ptr + f->f_dir.len );
-
- /* UNIX: Put / between dir and file */
- /* NT: Put \ between dir and file */
-
- if ( f->f_dir.len && ( f->f_base.len || f->f_suffix.len ) )
- {
- /* UNIX: Special case for dir \ : don't add another \ */
- /* NT: Special case for dir / : don't add another / */
-
-# if PATH_DELIM == '\\'
- if ( !( f->f_dir.len == 3 && f->f_dir.ptr[1] == ':' ) )
-# endif
- if ( !( f->f_dir.len == 1 && is_path_delim( f->f_dir.ptr[0] ) ) )
- string_push_back( file, as_path_delim( f->f_dir.ptr[f->f_dir.len] ) );
- }
-
- if ( f->f_base.len )
- {
- string_append_range( file, f->f_base.ptr, f->f_base.ptr + f->f_base.len );
- }
-
- if ( f->f_suffix.len )
- {
- string_append_range( file, f->f_suffix.ptr, f->f_suffix.ptr + f->f_suffix.len );
- }
-
- if ( f->f_member.len )
- {
- string_push_back( file, '(' );
- string_append_range( file, f->f_member.ptr, f->f_member.ptr + f->f_member.len );
- string_push_back( file, ')' );
- }
-}
-
-/*
- * path_parent() - make a PATHNAME point to its parent dir
- */
-
-void
-path_parent( PATHNAME *f )
-{
- /* just set everything else to nothing */
-
- f->f_base.ptr =
- f->f_suffix.ptr =
- f->f_member.ptr = "";
-
- f->f_base.len =
- f->f_suffix.len =
- f->f_member.len = 0;
-}
-
-#ifdef NT
-#include <windows.h>
-#include <tchar.h>
-
-/* The definition of this in winnt.h is not ANSI-C compatible. */
-#undef INVALID_FILE_ATTRIBUTES
-#define INVALID_FILE_ATTRIBUTES ((DWORD)-1)
-
-
-DWORD ShortPathToLongPath(LPCTSTR lpszShortPath,LPTSTR lpszLongPath,DWORD
- cchBuffer)
-{
- LONG i=0;
- TCHAR path[_MAX_PATH]={0};
- TCHAR ret[_MAX_PATH]={0};
- LONG pos=0, prev_pos=0;
- LONG len=_tcslen(lpszShortPath);
-
- /* Is the string valid? */
- if (!lpszShortPath) {
- SetLastError(ERROR_INVALID_PARAMETER);
- return 0;
- }
-
- /* Is the path valid? */
- if (GetFileAttributes(lpszShortPath)==INVALID_FILE_ATTRIBUTES)
- return 0;
-
- /* Convert "/" to "\" */
- for (i=0;i<len;++i) {
- if (lpszShortPath[i]==_T('/'))
- path[i]=_T('\\');
- else
- path[i]=lpszShortPath[i];
- }
-
- /* UNC path? */
- if (path[0]==_T('\\') && path[1]==_T('\\')) {
- pos=2;
- for (i=0;i<2;++i) {
- while (path[pos]!=_T('\\') && path[pos]!=_T('\0'))
- ++pos;
- ++pos;
- }
- _tcsncpy(ret,path,pos-1);
- } /* Drive letter? */
- else if (path[1]==_T(':')) {
- if (path[2]==_T('\\'))
- pos=3;
- if (len==3) {
- if (cchBuffer>3)
- _tcscpy(lpszLongPath,lpszShortPath);
- return len;
- }
- _tcsncpy(ret,path,2);
- }
-
- /* Expand the path for each subpath, and strip trailing backslashes */
- for (prev_pos = pos-1;pos<=len;++pos) {
- if (path[pos]==_T('\\') || (path[pos]==_T('\0') &&
- path[pos-1]!=_T('\\'))) {
- WIN32_FIND_DATA fd;
- HANDLE hf=0;
- TCHAR c=path[pos];
- char* new_element;
- path[pos]=_T('\0');
-
- /* the path[prev_pos+1]... path[pos] range is the part of
- path we're handling right now. We need to find long
- name for that element and add it. */
- new_element = path + prev_pos + 1;
-
- /* First add separator, but only if there's something in result already. */
- if (ret[0] != _T('\0'))
- {
- _tcscat(ret,_T("\\"));
- }
-
- /* If it's ".." element, we need to append it, not
- the name in parent that FindFirstFile will return.
- Same goes for "." */
-
- if (new_element[0] == _T('.') && new_element[1] == _T('\0') ||
- new_element[0] == _T('.') && new_element[1] == _T('.')
- && new_element[2] == _T('\0'))
- {
- _tcscat(ret, new_element);
- }
- else
- {
- hf=FindFirstFile(path, &fd);
- if (hf==INVALID_HANDLE_VALUE)
- return 0;
-
- _tcscat(ret,fd.cFileName);
- FindClose(hf);
- }
-
- path[pos]=c;
-
- prev_pos = pos;
- }
- }
-
- len=_tcslen(ret)+1;
- if (cchBuffer>=len)
- _tcscpy(lpszLongPath,ret);
-
- return len;
-}
-
-char* short_path_to_long_path(char* short_path)
-{
- char buffer2[_MAX_PATH];
- int ret = ShortPathToLongPath(short_path, buffer2, _MAX_PATH);
-
- if (ret)
- return newstr(buffer2);
- else
- return newstr(short_path);
-}
-
-#endif
-
-static string path_tmpdir_buffer[1];
-static const char * path_tmpdir_result = 0;
-
-const char * path_tmpdir()
-{
- if (!path_tmpdir_result)
- {
- # ifdef OS_NT
- DWORD pathLength = 0;
- pathLength = GetTempPath(pathLength,NULL);
- string_new(path_tmpdir_buffer);
- string_reserve(path_tmpdir_buffer,pathLength);
- pathLength = GetTempPathA(pathLength,path_tmpdir_buffer[0].value);
- path_tmpdir_buffer[0].value[pathLength-1] = '\0';
- path_tmpdir_buffer[0].size = pathLength-1;
- # else
- const char * t = getenv("TMPDIR");
- if (!t)
- {
- t = "/tmp";
- }
- string_new(path_tmpdir_buffer);
- string_append(path_tmpdir_buffer,t);
- # endif
- path_tmpdir_result = path_tmpdir_buffer[0].value;
- }
- return path_tmpdir_result;
-}
-
-const char * path_tmpnam(void)
-{
- char name_buffer[64];
- # ifdef OS_NT
- unsigned long c0 = GetCurrentProcessId();
- # else
- unsigned long c0 = getpid();
- # endif
- static unsigned long c1 = 0;
- if (0 == c1) c1 = time(0)&0xffff;
- c1 += 1;
- sprintf(name_buffer,"jam%lx%lx.000",c0,c1);
- return newstr(name_buffer);
-}
-
-const char * path_tmpfile(void)
-{
- const char * result = 0;
-
- string file_path;
- string_copy(&file_path,path_tmpdir());
- string_push_back(&file_path,PATH_DELIM);
- string_append(&file_path,path_tmpnam());
- result = newstr(file_path.value);
- string_free(&file_path);
-
- return result;
-}
-
-
-# endif /* unix, NT, OS/2, AmigaOS */