1 /*    Win32CORE.c
2  *
3  *    Copyright (C) 2007 by Larry Wall and others
4  *
5  *    You may distribute under the terms of either the GNU General Public
6  *    License or the Artistic License, as specified in the README file.
7  *
8  */
9 
10 #define WIN32_LEAN_AND_MEAN
11 #include <windows.h>
12 
13 #if defined(__CYGWIN__) && !defined(USEIMPORTLIB)
14   #undef WIN32
15 #endif
16 #define PERL_NO_GET_CONTEXT
17 #include "EXTERN.h"
18 #if defined(__CYGWIN__) && !defined(USEIMPORTLIB)
19   #define EXTCONST extern const
20 #endif
21 #include "perl.h"
22 #include "XSUB.h"
23 
24 
XS(w32_CORE_all)25 XS(w32_CORE_all){
26     /* I'd use dSAVE_ERRNO() here, but it doesn't save the Win32 error code
27      * under cygwin, if that changes this code should change to use that.
28      */
29     int saved_errno = errno;
30     DWORD err = GetLastError();
31     /* capture the XSANY value before Perl_load_module, the CV's any member will
32      * be overwritten by Perl_load_module and subsequent newXSes or pure perl
33      * subs
34      */
35     const char *function  = (const char *) XSANY.any_ptr;
36     Perl_load_module(aTHX_ PERL_LOADMOD_NOIMPORT, newSVpvs("Win32"), newSVnv(0.27));
37     SetLastError(err);
38     errno = saved_errno;
39     /* mark and SP from caller are passed through unchanged */
40     call_pv(function, GIMME_V);
41 }
42 
43 #ifdef __cplusplus
44 extern "C"
45 #endif
XS_EXTERNAL(boot_Win32CORE)46 XS_EXTERNAL(boot_Win32CORE)
47 {
48     /* This function only exists because writemain.SH, lib/ExtUtils/Embed.pm
49      * and win32/buildext.pl will all generate references to it.  The function
50      * should never be called though, as Win32CORE.pm doesn't use DynaLoader.
51      */
52     PERL_UNUSED_ARG(cv);
53 }
54 
55 EXTERN_C
56 #if !defined(__CYGWIN__) || defined(USEIMPORTLIB)
57 __declspec(dllexport)
58 #endif
59 void
init_Win32CORE(pTHX)60 init_Win32CORE(pTHX)
61 {
62     /* This function is called from init_os_extras().  The Perl interpreter
63      * is not yet fully initialized, so don't do anything fancy in here.
64      */
65 
66     static const struct {
67         char Win32__GetCwd [sizeof("Win32::GetCwd")];
68         char Win32__SetCwd [sizeof("Win32::SetCwd")];
69         char Win32__GetNextAvailDrive [sizeof("Win32::GetNextAvailDrive")];
70         char Win32__GetLastError [sizeof("Win32::GetLastError")];
71         char Win32__SetLastError [sizeof("Win32::SetLastError")];
72         char Win32__LoginName [sizeof("Win32::LoginName")];
73         char Win32__NodeName [sizeof("Win32::NodeName")];
74         char Win32__DomainName [sizeof("Win32::DomainName")];
75         char Win32__FsType [sizeof("Win32::FsType")];
76         char Win32__GetOSVersion [sizeof("Win32::GetOSVersion")];
77         char Win32__IsWinNT [sizeof("Win32::IsWinNT")];
78         char Win32__IsWin95 [sizeof("Win32::IsWin95")];
79         char Win32__FormatMessage [sizeof("Win32::FormatMessage")];
80         char Win32__Spawn [sizeof("Win32::Spawn")];
81         char Win32__GetTickCount [sizeof("Win32::GetTickCount")];
82         char Win32__GetShortPathName [sizeof("Win32::GetShortPathName")];
83         char Win32__GetFullPathName [sizeof("Win32::GetFullPathName")];
84         char Win32__GetLongPathName [sizeof("Win32::GetLongPathName")];
85         char Win32__CopyFile [sizeof("Win32::CopyFile")];
86         char Win32__Sleep [sizeof("Win32::Sleep")];
87     } fnname_table = {
88         "Win32::GetCwd",
89         "Win32::SetCwd",
90         "Win32::GetNextAvailDrive",
91         "Win32::GetLastError",
92         "Win32::SetLastError",
93         "Win32::LoginName",
94         "Win32::NodeName",
95         "Win32::DomainName",
96         "Win32::FsType",
97         "Win32::GetOSVersion",
98         "Win32::IsWinNT",
99         "Win32::IsWin95",
100         "Win32::FormatMessage",
101         "Win32::Spawn",
102         "Win32::GetTickCount",
103         "Win32::GetShortPathName",
104         "Win32::GetFullPathName",
105         "Win32::GetLongPathName",
106         "Win32::CopyFile",
107         "Win32::Sleep"
108     };
109 
110     static const unsigned char fnname_lens [] = {
111         sizeof("Win32::GetCwd"),
112         sizeof("Win32::SetCwd"),
113         sizeof("Win32::GetNextAvailDrive"),
114         sizeof("Win32::GetLastError"),
115         sizeof("Win32::SetLastError"),
116         sizeof("Win32::LoginName"),
117         sizeof("Win32::NodeName"),
118         sizeof("Win32::DomainName"),
119         sizeof("Win32::FsType"),
120         sizeof("Win32::GetOSVersion"),
121         sizeof("Win32::IsWinNT"),
122         sizeof("Win32::IsWin95"),
123         sizeof("Win32::FormatMessage"),
124         sizeof("Win32::Spawn"),
125         sizeof("Win32::GetTickCount"),
126         sizeof("Win32::GetShortPathName"),
127         sizeof("Win32::GetFullPathName"),
128         sizeof("Win32::GetLongPathName"),
129         sizeof("Win32::CopyFile"),
130         sizeof("Win32::Sleep")
131     };
132     const unsigned char * len = (const unsigned char *)&fnname_lens;
133     const char * function = (char *)&fnname_table;
134     while (function < (char *)&fnname_table + sizeof(fnname_table)) {
135         const char * const file = __FILE__;
136         CV * const cv = newXS(function, w32_CORE_all, file);
137         XSANY.any_ptr = (void *)function;
138         function += *len++;
139     }
140 
141 
142     /* Don't forward Win32::SetChildShowWindow().  It accesses the internal variable
143      * w32_showwindow in thread_intern and is therefore not implemented in Win32.xs.
144      */
145     /* newXS("Win32::SetChildShowWindow", w32_SetChildShowWindow, file); */
146 }
147