Commit | Line | Data |
68dc0745 |
1 | |
2 | #ifdef __cplusplus |
3 | extern "C" { |
4 | #endif |
5 | |
6 | #define WIN32_LEAN_AND_MEAN |
7 | #define WIN32IO_IS_STDIO |
8 | #define EXT |
9 | #include <windows.h> |
10 | #include <stdio.h> |
11 | #include <stdlib.h> |
12 | #include <io.h> |
13 | #include <sys/stat.h> |
14 | #include <sys/socket.h> |
15 | #include <fcntl.h> |
16 | #include <assert.h> |
17 | #include <errno.h> |
18 | #include <process.h> |
19 | |
20 | #include "win32iop.h" |
21 | |
22 | /* |
23 | * The following is just a basic wrapping of the stdio |
24 | * |
25 | * redirected io subsystem for all XS modules |
26 | */ |
27 | |
28 | static int * |
29 | dummy_errno(void) |
30 | { |
31 | return (&(errno)); |
32 | } |
33 | |
34 | /* the rest are the remapped stdio routines */ |
35 | static FILE * |
36 | dummy_stderr(void) |
37 | { |
38 | return stderr; |
39 | } |
40 | |
41 | static FILE * |
42 | dummy_stdin(void) |
43 | { |
44 | return stdin; |
45 | } |
46 | |
47 | static FILE * |
48 | dummy_stdout(void) |
49 | { |
50 | return stdout; |
51 | } |
52 | |
53 | static int |
54 | dummy_globalmode(int mode) |
55 | { |
56 | int o = _fmode; |
57 | _fmode = mode; |
58 | |
59 | return o; |
60 | } |
61 | |
62 | |
63 | #if defined(_WIN32) && !defined(WIN95_OSFHANDLE_FIXED) && defined(_M_IX86) |
64 | |
65 | # ifdef __cplusplus |
66 | #define EXT_C_FUNC extern "C" |
67 | # else |
68 | #define EXT_C_FUNC extern |
69 | # endif |
70 | |
71 | EXT_C_FUNC int __cdecl _alloc_osfhnd(void); |
72 | EXT_C_FUNC int __cdecl _set_osfhnd(int fh, long value); |
73 | EXT_C_FUNC void __cdecl _lock_fhandle(int); |
74 | EXT_C_FUNC void __cdecl _unlock_fhandle(int); |
75 | EXT_C_FUNC void __cdecl _unlock(int); |
76 | |
77 | #if (_MSC_VER >= 1000) |
78 | typedef struct { |
79 | long osfhnd; /* underlying OS file HANDLE */ |
80 | char osfile; /* attributes of file (e.g., open in text mode?) */ |
81 | char pipech; /* one char buffer for handles opened on pipes */ |
82 | #if defined (_MT) && !defined (DLL_FOR_WIN32S) |
83 | int lockinitflag; |
84 | CRITICAL_SECTION lock; |
85 | #endif /* defined (_MT) && !defined (DLL_FOR_WIN32S) */ |
86 | } ioinfo; |
87 | |
88 | EXT_C_FUNC ioinfo * __pioinfo[]; |
89 | |
90 | #define IOINFO_L2E 5 |
91 | #define IOINFO_ARRAY_ELTS (1 << IOINFO_L2E) |
92 | #define _pioinfo(i) (__pioinfo[i >> IOINFO_L2E] + (i & (IOINFO_ARRAY_ELTS - 1))) |
93 | #define _osfile(i) (_pioinfo(i)->osfile) |
94 | |
95 | #else /* (_MSC_VER >= 1000) */ |
96 | extern char _osfile[]; |
97 | #endif /* (_MSC_VER >= 1000) */ |
98 | |
99 | #define FOPEN 0x01 /* file handle open */ |
100 | #define FAPPEND 0x20 /* file handle opened O_APPEND */ |
101 | #define FDEV 0x40 /* file handle refers to device */ |
102 | #define FTEXT 0x80 /* file handle is in text mode */ |
103 | |
104 | #define _STREAM_LOCKS 26 /* Table of stream locks */ |
105 | #define _LAST_STREAM_LOCK (_STREAM_LOCKS+_NSTREAM_-1) /* Last stream lock */ |
106 | #define _FH_LOCKS (_LAST_STREAM_LOCK+1) /* Table of fh locks */ |
107 | |
108 | /*** |
109 | *int _patch_open_osfhandle(long osfhandle, int flags) - open C Runtime file handle |
110 | * |
111 | *Purpose: |
112 | * This function allocates a free C Runtime file handle and associates |
113 | * it with the Win32 HANDLE specified by the first parameter. This is a |
114 | * temperary fix for WIN95's brain damage GetFileType() error on socket |
115 | * we just bypass that call for socket |
116 | * |
117 | *Entry: |
118 | * long osfhandle - Win32 HANDLE to associate with C Runtime file handle. |
119 | * int flags - flags to associate with C Runtime file handle. |
120 | * |
121 | *Exit: |
122 | * returns index of entry in fh, if successful |
123 | * return -1, if no free entry is found |
124 | * |
125 | *Exceptions: |
126 | * |
127 | *******************************************************************************/ |
128 | |
129 | int |
130 | my_open_osfhandle(long osfhandle, int flags) |
131 | { |
132 | int fh; |
133 | char fileflags; /* _osfile flags */ |
134 | |
135 | /* copy relevant flags from second parameter */ |
136 | fileflags = FDEV; |
137 | |
138 | if(flags & _O_APPEND) |
139 | fileflags |= FAPPEND; |
140 | |
141 | if(flags & _O_TEXT) |
142 | fileflags |= FTEXT; |
143 | |
144 | /* attempt to allocate a C Runtime file handle */ |
145 | if((fh = _alloc_osfhnd()) == -1) { |
146 | errno = EMFILE; /* too many open files */ |
147 | _doserrno = 0L; /* not an OS error */ |
148 | return -1; /* return error to caller */ |
149 | } |
150 | |
151 | /* the file is open. now, set the info in _osfhnd array */ |
152 | _set_osfhnd(fh, osfhandle); |
153 | |
154 | fileflags |= FOPEN; /* mark as open */ |
155 | |
156 | #if (_MSC_VER >= 1000) |
157 | _osfile(fh) = fileflags; /* set osfile entry */ |
158 | _unlock_fhandle(fh); |
159 | #else |
160 | _osfile[fh] = fileflags; /* set osfile entry */ |
161 | _unlock(fh+_FH_LOCKS); /* unlock handle */ |
162 | #endif |
163 | |
164 | return fh; /* return handle */ |
165 | } |
166 | #else |
167 | |
168 | int __cdecl |
169 | stolen_open_osfhandle(long osfhandle, int flags) |
170 | { |
171 | return _open_osfhandle(osfhandle, flags); |
172 | } |
173 | #endif /* _M_IX86 */ |
174 | |
175 | long |
176 | my_get_osfhandle( int filehandle ) |
177 | { |
178 | return _get_osfhandle(filehandle); |
179 | } |
180 | |
181 | WIN32_IOSUBSYSTEM win32stdio = { |
182 | 12345678L, /* begin of structure; */ |
183 | dummy_errno, /* (*pfunc_errno)(void); */ |
184 | dummy_stdin, /* (*pfunc_stdin)(void); */ |
185 | dummy_stdout, /* (*pfunc_stdout)(void); */ |
186 | dummy_stderr, /* (*pfunc_stderr)(void); */ |
187 | ferror, /* (*pfunc_ferror)(FILE *fp); */ |
188 | feof, /* (*pfunc_feof)(FILE *fp); */ |
189 | strerror, /* (*strerror)(int e); */ |
190 | vfprintf, /* (*pfunc_vfprintf)(FILE *pf, const char *format, va_list arg); */ |
191 | vprintf, /* (*pfunc_vprintf)(const char *format, va_list arg); */ |
192 | fread, /* (*pfunc_fread)(void *buf, size_t size, size_t count, FILE *pf); */ |
193 | fwrite, /* (*pfunc_fwrite)(void *buf, size_t size, size_t count, FILE *pf); */ |
194 | fopen, /* (*pfunc_fopen)(const char *path, const char *mode); */ |
195 | fdopen, /* (*pfunc_fdopen)(int fh, const char *mode); */ |
196 | freopen, /* (*pfunc_freopen)(const char *path, const char *mode, FILE *pf); */ |
197 | fclose, /* (*pfunc_fclose)(FILE *pf); */ |
198 | fputs, /* (*pfunc_fputs)(const char *s,FILE *pf); */ |
199 | fputc, /* (*pfunc_fputc)(int c,FILE *pf); */ |
200 | ungetc, /* (*pfunc_ungetc)(int c,FILE *pf); */ |
201 | getc, /* (*pfunc_getc)(FILE *pf); */ |
202 | fileno, /* (*pfunc_fileno)(FILE *pf); */ |
203 | clearerr, /* (*pfunc_clearerr)(FILE *pf); */ |
204 | fflush, /* (*pfunc_fflush)(FILE *pf); */ |
205 | ftell, /* (*pfunc_ftell)(FILE *pf); */ |
206 | fseek, /* (*pfunc_fseek)(FILE *pf,long offset,int origin); */ |
207 | fgetpos, /* (*pfunc_fgetpos)(FILE *pf,fpos_t *p); */ |
208 | fsetpos, /* (*pfunc_fsetpos)(FILE *pf,fpos_t *p); */ |
209 | rewind, /* (*pfunc_rewind)(FILE *pf); */ |
210 | tmpfile, /* (*pfunc_tmpfile)(void); */ |
211 | abort, /* (*pfunc_abort)(void); */ |
212 | fstat, /* (*pfunc_fstat)(int fd,struct stat *bufptr); */ |
213 | stat, /* (*pfunc_stat)(const char *name,struct stat *bufptr); */ |
214 | _pipe, /* (*pfunc_pipe)( int *phandles, unsigned int psize, int textmode ); */ |
215 | _popen, /* (*pfunc_popen)( const char *command, const char *mode ); */ |
216 | _pclose, /* (*pfunc_pclose)( FILE *pf); */ |
217 | setmode, /* (*pfunc_setmode)( int fd, int mode); */ |
218 | lseek, /* (*pfunc_lseek)( int fd, long offset, int origin); */ |
219 | tell, /* (*pfunc_tell)( int fd); */ |
220 | dup, /* (*pfunc_dup)( int fd); */ |
221 | dup2, /* (*pfunc_dup2)(int h1, int h2); */ |
222 | open, /* (*pfunc_open)(const char *path, int oflag,...); */ |
223 | close, /* (*pfunc_close)(int fd); */ |
224 | eof, /* (*pfunc_eof)(int fd); */ |
225 | read, /* (*pfunc_read)(int fd, void *buf, unsigned int cnt); */ |
226 | write, /* (*pfunc_write)(int fd, const void *buf, unsigned int cnt); */ |
227 | dummy_globalmode, /* (*pfunc_globalmode)(int mode) */ |
228 | my_open_osfhandle, |
229 | my_get_osfhandle, |
230 | spawnvpe, |
231 | 87654321L, /* end of structure */ |
232 | }; |
233 | |
234 | |
235 | #ifdef __cplusplus |
236 | } |
237 | #endif |
238 | |