| 1 | #define PERL_NO_GET_CONTEXT |
| 2 | #define WIN32_LEAN_AND_MEAN |
| 3 | #define WIN32IO_IS_STDIO |
| 4 | #include <tchar.h> |
| 5 | #ifdef __GNUC__ |
| 6 | #define Win32_Winsock |
| 7 | #endif |
| 8 | #include <windows.h> |
| 9 | |
| 10 | #include <sys/stat.h> |
| 11 | #include "EXTERN.h" |
| 12 | #include "perl.h" |
| 13 | #include "perliol.h" |
| 14 | |
| 15 | #define NO_XSLOCKS |
| 16 | #include "XSUB.h" |
| 17 | |
| 18 | /* Bottom-most level for Win32 case */ |
| 19 | |
| 20 | typedef struct |
| 21 | { |
| 22 | struct _PerlIO base; /* The generic part */ |
| 23 | HANDLE h; /* OS level handle */ |
| 24 | IV refcnt; /* REFCNT for the "fd" this represents */ |
| 25 | int fd; /* UNIX like file descriptor - index into fdtable */ |
| 26 | } PerlIOWin32; |
| 27 | |
| 28 | PerlIOWin32 *fdtable[256]; |
| 29 | IV max_open_fd = -1; |
| 30 | |
| 31 | IV |
| 32 | PerlIOWin32_popped(PerlIO *f) |
| 33 | { |
| 34 | PerlIOWin32 *s = PerlIOSelf(f,PerlIOWin32); |
| 35 | if (--s->refcnt > 0) |
| 36 | { |
| 37 | *f = PerlIOBase(f)->next; |
| 38 | return 1; |
| 39 | } |
| 40 | fdtable[s->fd] = NULL; |
| 41 | return 0; |
| 42 | } |
| 43 | |
| 44 | IV |
| 45 | PerlIOWin32_fileno(PerlIO *f) |
| 46 | { |
| 47 | return PerlIOSelf(f,PerlIOWin32)->fd; |
| 48 | } |
| 49 | |
| 50 | IV |
| 51 | PerlIOWin32_pushed(PerlIO *f, const char *mode, SV *arg) |
| 52 | { |
| 53 | IV code = PerlIOBase_pushed(f,mode,arg); |
| 54 | if (*PerlIONext(f)) |
| 55 | { |
| 56 | PerlIOWin32 *s = PerlIOSelf(f,PerlIOWin32); |
| 57 | s->fd = PerlIO_fileno(PerlIONext(f)); |
| 58 | } |
| 59 | PerlIOBase(f)->flags |= PERLIO_F_OPEN; |
| 60 | return code; |
| 61 | } |
| 62 | |
| 63 | PerlIO * |
| 64 | PerlIOWin32_open(pTHX_ PerlIO_funcs *self, PerlIO_list_t *layers, IV n, const char *mode, int fd, int imode, int perm, PerlIO *f, int narg, SV **args) |
| 65 | { |
| 66 | const char *tmode = mode; |
| 67 | HANDLE h = INVALID_HANDLE_VALUE; |
| 68 | if (f) |
| 69 | { |
| 70 | /* Close if already open */ |
| 71 | if (PerlIOBase(f)->flags & PERLIO_F_OPEN) |
| 72 | (*PerlIOBase(f)->tab->Close)(f); |
| 73 | } |
| 74 | if (narg > 0) |
| 75 | { |
| 76 | char *path = SvPV_nolen(*args); |
| 77 | DWORD access = 0; |
| 78 | DWORD share = 0; |
| 79 | DWORD create = -1; |
| 80 | DWORD attr = FILE_ATTRIBUTE_NORMAL; |
| 81 | if (*mode == '#') |
| 82 | { |
| 83 | /* sysopen - imode is UNIX-like O_RDONLY etc. |
| 84 | - do_open has converted that back to string form in mode as well |
| 85 | - perm is UNIX like permissions |
| 86 | */ |
| 87 | mode++; |
| 88 | } |
| 89 | else |
| 90 | { |
| 91 | /* Normal open - decode mode string */ |
| 92 | } |
| 93 | switch(*mode) |
| 94 | { |
| 95 | case 'r': |
| 96 | access = GENERIC_READ; |
| 97 | create = OPEN_EXISTING; |
| 98 | if (*++mode == '+') |
| 99 | { |
| 100 | access |= GENERIC_WRITE; |
| 101 | create = OPEN_ALWAYS; |
| 102 | mode++; |
| 103 | } |
| 104 | break; |
| 105 | |
| 106 | case 'w': |
| 107 | access = GENERIC_WRITE; |
| 108 | create = TRUNCATE_EXISTING; |
| 109 | if (*++mode == '+') |
| 110 | { |
| 111 | access |= GENERIC_READ; |
| 112 | mode++; |
| 113 | } |
| 114 | break; |
| 115 | |
| 116 | case 'a': |
| 117 | access = GENERIC_WRITE; |
| 118 | create = OPEN_ALWAYS; |
| 119 | if (*++mode == '+') |
| 120 | { |
| 121 | access |= GENERIC_READ; |
| 122 | mode++; |
| 123 | } |
| 124 | break; |
| 125 | } |
| 126 | if (*mode == 'b') |
| 127 | { |
| 128 | mode++; |
| 129 | } |
| 130 | else if (*mode == 't') |
| 131 | { |
| 132 | mode++; |
| 133 | } |
| 134 | if (*mode || create == -1) |
| 135 | { |
| 136 | SETERRNO(EINVAL,LIB$_INVARG); |
| 137 | return NULL; |
| 138 | } |
| 139 | if (!(access & GENERIC_WRITE)) |
| 140 | share = FILE_SHARE_READ; |
| 141 | h = CreateFile(path,access,share,NULL,create,attr,NULL); |
| 142 | if (h == INVALID_HANDLE_VALUE) |
| 143 | { |
| 144 | if (create == TRUNCATE_EXISTING) |
| 145 | h = CreateFile(path,access,share,NULL,(create = OPEN_ALWAYS),attr,NULL); |
| 146 | } |
| 147 | } |
| 148 | else |
| 149 | { |
| 150 | /* fd open */ |
| 151 | h = INVALID_HANDLE_VALUE; |
| 152 | if (fd >= 0 && fd <= max_open_fd) |
| 153 | { |
| 154 | PerlIOWin32 *s = fdtable[fd]; |
| 155 | if (s) |
| 156 | { |
| 157 | s->refcnt++; |
| 158 | if (!f) |
| 159 | f = PerlIO_allocate(aTHX); |
| 160 | *f = &s->base; |
| 161 | return f; |
| 162 | } |
| 163 | } |
| 164 | if (*mode == 'I') |
| 165 | { |
| 166 | mode++; |
| 167 | switch(fd) |
| 168 | { |
| 169 | case 0: |
| 170 | h = GetStdHandle(STD_INPUT_HANDLE); |
| 171 | break; |
| 172 | case 1: |
| 173 | h = GetStdHandle(STD_OUTPUT_HANDLE); |
| 174 | break; |
| 175 | case 2: |
| 176 | h = GetStdHandle(STD_ERROR_HANDLE); |
| 177 | break; |
| 178 | } |
| 179 | } |
| 180 | } |
| 181 | if (h != INVALID_HANDLE_VALUE) |
| 182 | fd = win32_open_osfhandle((long) h, PerlIOUnix_oflags(tmode)); |
| 183 | if (fd >= 0) |
| 184 | { |
| 185 | PerlIOWin32 *s; |
| 186 | if (!f) |
| 187 | f = PerlIO_allocate(aTHX); |
| 188 | s = PerlIOSelf(PerlIO_push(aTHX_ f,self,tmode,PerlIOArg),PerlIOWin32); |
| 189 | s->h = h; |
| 190 | s->fd = fd; |
| 191 | s->refcnt = 1; |
| 192 | if (fd >= 0) |
| 193 | { |
| 194 | fdtable[fd] = s; |
| 195 | if (fd > max_open_fd) |
| 196 | max_open_fd = fd; |
| 197 | } |
| 198 | return f; |
| 199 | } |
| 200 | if (f) |
| 201 | { |
| 202 | /* FIXME: pop layers ??? */ |
| 203 | } |
| 204 | return NULL; |
| 205 | } |
| 206 | |
| 207 | SSize_t |
| 208 | PerlIOWin32_read(PerlIO *f, void *vbuf, Size_t count) |
| 209 | { |
| 210 | PerlIOWin32 *s = PerlIOSelf(f,PerlIOWin32); |
| 211 | DWORD len; |
| 212 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANREAD)) |
| 213 | return 0; |
| 214 | if (ReadFile(s->h,vbuf,count,&len,NULL)) |
| 215 | { |
| 216 | return len; |
| 217 | } |
| 218 | else |
| 219 | { |
| 220 | if (GetLastError() != NO_ERROR) |
| 221 | { |
| 222 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; |
| 223 | return -1; |
| 224 | } |
| 225 | else |
| 226 | { |
| 227 | if (count != 0) |
| 228 | PerlIOBase(f)->flags |= PERLIO_F_EOF; |
| 229 | return 0; |
| 230 | } |
| 231 | } |
| 232 | } |
| 233 | |
| 234 | SSize_t |
| 235 | PerlIOWin32_write(PerlIO *f, const void *vbuf, Size_t count) |
| 236 | { |
| 237 | PerlIOWin32 *s = PerlIOSelf(f,PerlIOWin32); |
| 238 | DWORD len; |
| 239 | if (WriteFile(s->h,vbuf,count,&len,NULL)) |
| 240 | { |
| 241 | return len; |
| 242 | } |
| 243 | else |
| 244 | { |
| 245 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; |
| 246 | return -1; |
| 247 | } |
| 248 | } |
| 249 | |
| 250 | IV |
| 251 | PerlIOWin32_seek(PerlIO *f, Off_t offset, int whence) |
| 252 | { |
| 253 | static const DWORD where[3] = { FILE_BEGIN, FILE_CURRENT, FILE_END }; |
| 254 | PerlIOWin32 *s = PerlIOSelf(f,PerlIOWin32); |
| 255 | DWORD high = (sizeof(offset) > sizeof(DWORD)) ? (DWORD)(offset >> 32) : 0; |
| 256 | DWORD low = (DWORD) offset; |
| 257 | DWORD res = SetFilePointer(s->h,low,&high,where[whence]); |
| 258 | if (res != 0xFFFFFFFF || GetLastError() != NO_ERROR) |
| 259 | { |
| 260 | return 0; |
| 261 | } |
| 262 | else |
| 263 | { |
| 264 | return -1; |
| 265 | } |
| 266 | } |
| 267 | |
| 268 | Off_t |
| 269 | PerlIOWin32_tell(PerlIO *f) |
| 270 | { |
| 271 | PerlIOWin32 *s = PerlIOSelf(f,PerlIOWin32); |
| 272 | DWORD high = 0; |
| 273 | DWORD res = SetFilePointer(s->h,0,&high,FILE_CURRENT); |
| 274 | if (res != 0xFFFFFFFF || GetLastError() != NO_ERROR) |
| 275 | { |
| 276 | return ((Off_t) high << 32) | res; |
| 277 | } |
| 278 | return (Off_t) -1; |
| 279 | } |
| 280 | |
| 281 | IV |
| 282 | PerlIOWin32_close(PerlIO *f) |
| 283 | { |
| 284 | PerlIOWin32 *s = PerlIOSelf(f,PerlIOWin32); |
| 285 | if (s->refcnt == 1) |
| 286 | { |
| 287 | if (CloseHandle(s->h)) |
| 288 | { |
| 289 | s->h = INVALID_HANDLE_VALUE; |
| 290 | return -1; |
| 291 | } |
| 292 | } |
| 293 | PerlIOBase(f)->flags &= ~PERLIO_F_OPEN; |
| 294 | return 0; |
| 295 | } |
| 296 | |
| 297 | PerlIO * |
| 298 | PerlIOWin32_dup(pTHX_ PerlIO *f, PerlIO *o, CLONE_PARAMS *params, int flags) |
| 299 | { |
| 300 | PerlIOWin32 *os = PerlIOSelf(f,PerlIOWin32); |
| 301 | HANDLE proc = GetCurrentProcess(); |
| 302 | HANDLE new; |
| 303 | if (DuplicateHandle(proc, os->h, proc, &new, 0, FALSE, DUPLICATE_SAME_ACCESS)) |
| 304 | { |
| 305 | char mode[8]; |
| 306 | int fd = win32_open_osfhandle((long) new, PerlIOUnix_oflags(PerlIO_modestr(o,mode))); |
| 307 | if (fd >= 0) |
| 308 | { |
| 309 | f = PerlIOBase_dup(aTHX_ f, o, params, flags); |
| 310 | if (f) |
| 311 | { |
| 312 | PerlIOWin32 *fs = PerlIOSelf(f,PerlIOWin32); |
| 313 | fs->h = new; |
| 314 | fs->fd = fd; |
| 315 | fs->refcnt = 1; |
| 316 | fdtable[fd] = fs; |
| 317 | if (fd > max_open_fd) |
| 318 | max_open_fd = fd; |
| 319 | } |
| 320 | else |
| 321 | { |
| 322 | win32_close(fd); |
| 323 | } |
| 324 | } |
| 325 | else |
| 326 | { |
| 327 | CloseHandle(new); |
| 328 | } |
| 329 | } |
| 330 | return f; |
| 331 | } |
| 332 | |
| 333 | PerlIO_funcs PerlIO_win32 = { |
| 334 | "win32", |
| 335 | sizeof(PerlIOWin32), |
| 336 | PERLIO_K_RAW, |
| 337 | PerlIOWin32_pushed, |
| 338 | PerlIOWin32_popped, |
| 339 | PerlIOWin32_open, |
| 340 | NULL, /* getarg */ |
| 341 | PerlIOWin32_fileno, |
| 342 | PerlIOWin32_dup, |
| 343 | PerlIOWin32_read, |
| 344 | PerlIOBase_unread, |
| 345 | PerlIOWin32_write, |
| 346 | PerlIOWin32_seek, |
| 347 | PerlIOWin32_tell, |
| 348 | PerlIOWin32_close, |
| 349 | PerlIOBase_noop_ok, /* flush */ |
| 350 | PerlIOBase_noop_fail, /* fill */ |
| 351 | PerlIOBase_eof, |
| 352 | PerlIOBase_error, |
| 353 | PerlIOBase_clearerr, |
| 354 | PerlIOBase_setlinebuf, |
| 355 | NULL, /* get_base */ |
| 356 | NULL, /* get_bufsiz */ |
| 357 | NULL, /* get_ptr */ |
| 358 | NULL, /* get_cnt */ |
| 359 | NULL, /* set_ptrcnt */ |
| 360 | }; |
| 361 | |
| 362 | |