1 /*****************************************************************************
2 * libc.c: Extra libc function for some systems.
3 *****************************************************************************
4 * Copyright (C) 2002-2006 the VideoLAN team
7 * Authors: Jon Lech Johansen <jon-vl@nanocrew.net>
8 * Samuel Hocevar <sam@zoy.org>
9 * Gildas Bazin <gbazin@videolan.org>
10 * Derk-Jan Hartman <hartman at videolan dot org>
11 * Christophe Massiot <massiot@via.ecp.fr>
12 * Rémi Denis-Courmont <rem à videolan.org>
14 * This program is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License as published by
16 * the Free Software Foundation; either version 2 of the License, or
17 * (at your option) any later version.
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
27 *****************************************************************************/
32 #include <vlc_common.h>
42 #if defined(HAVE_ICONV)
49 # include <sys/wait.h>
50 # include <sys/socket.h>
51 # include <sys/poll.h>
53 # define PF_LOCAL PF_UNIX
57 #if defined(WIN32) || defined(UNDER_CE)
62 # define WIN32_LEAN_AND_MEAN
66 /*****************************************************************************
67 * vlc_*dir_wrapper: wrapper under Windows to return the list of drive letters
68 * when called with an empty argument or just '\'
69 *****************************************************************************/
73 typedef struct vlc_DIR
77 struct _wdirent dd_dir;
81 void *vlc_wopendir( const wchar_t *wpath )
83 vlc_DIR *p_dir = NULL;
84 _WDIR *p_real_dir = NULL;
86 if ( wpath == NULL || wpath[0] == '\0'
87 || (wcscmp (wpath, L"\\") == 0) )
89 /* Special mode to list drive letters */
90 p_dir = malloc( sizeof(vlc_DIR) );
93 p_dir->p_real_dir = NULL;
95 p_dir->i_drives = NULL;
97 p_dir->i_drives = GetLogicalDrives();
102 p_real_dir = _wopendir( wpath );
103 if ( p_real_dir == NULL )
106 p_dir = malloc( sizeof(vlc_DIR) );
109 _wclosedir( p_real_dir );
112 p_dir->p_real_dir = p_real_dir;
114 assert (wpath[0]); // wpath[1] is defined
115 p_dir->b_insert_back = !wcscmp (wpath + 1, L":\\");
116 return (void *)p_dir;
119 struct _wdirent *vlc_wreaddir( void *_p_dir )
121 vlc_DIR *p_dir = (vlc_DIR *)_p_dir;
124 if ( p_dir->p_real_dir != NULL )
126 if ( p_dir->b_insert_back )
128 /* Adds "..", gruik! */
129 p_dir->dd_dir.d_ino = 0;
130 p_dir->dd_dir.d_reclen = 0;
131 p_dir->dd_dir.d_namlen = 2;
132 wcscpy( p_dir->dd_dir.d_name, L".." );
133 p_dir->b_insert_back = false;
134 return &p_dir->dd_dir;
137 return _wreaddir( p_dir->p_real_dir );
140 /* Drive letters mode */
141 i_drives = p_dir->i_drives;
143 swprintf( p_dir->dd_dir.d_name, L"\\");
144 p_dir->dd_dir.d_namlen = wcslen(p_dir->dd_dir.d_name);
148 return NULL; /* end */
150 for ( i = 0; i < sizeof(DWORD)*8; i++, i_drives >>= 1 )
151 if ( i_drives & 1 ) break;
154 return NULL; /* this should not happen */
156 swprintf( p_dir->dd_dir.d_name, L"%c:\\", 'A' + i );
157 p_dir->dd_dir.d_namlen = wcslen(p_dir->dd_dir.d_name);
158 p_dir->i_drives &= ~(1UL << i);
160 return &p_dir->dd_dir;
163 void vlc_rewinddir( void *_p_dir )
165 vlc_DIR *p_dir = (vlc_DIR *)_p_dir;
167 if ( p_dir->p_real_dir != NULL )
168 _wrewinddir( p_dir->p_real_dir );
172 /* This one is in the libvlccore exported symbol list */
173 int vlc_wclosedir( void *_p_dir )
176 vlc_DIR *p_dir = (vlc_DIR *)_p_dir;
179 if ( p_dir->p_real_dir != NULL )
180 i_ret = _wclosedir( p_dir->p_real_dir );
185 return closedir( _p_dir );
190 # include <libintl.h>
194 * In-tree plugins share their gettext domain with LibVLC.
196 char *vlc_gettext( const char *msgid )
199 return dgettext( PACKAGE_NAME, msgid );
201 return (char *)msgid;
205 /*****************************************************************************
206 * Local conversion routine from ISO_6937 to UTF-8 charset. Support for this
207 * is still missing in libiconv, hence multiple operating systems lack it.
208 * The conversion table adds Euro sign (0xA4) as per ETSI EN 300 468 Annex A
209 *****************************************************************************/
211 static const uint16_t to_ucs4[128] =
213 /* 0x80 */ 0x0080, 0x0081, 0x0082, 0x0083, 0x0084, 0x0085, 0x0086, 0x0087,
214 /* 0x88 */ 0x0088, 0x0089, 0x008a, 0x008b, 0x008c, 0x008d, 0x008e, 0x008f,
215 /* 0x90 */ 0x0090, 0x0091, 0x0092, 0x0093, 0x0094, 0x0095, 0x0096, 0x0097,
216 /* 0x98 */ 0x0098, 0x0099, 0x009a, 0x009b, 0x009c, 0x009d, 0x009e, 0x009f,
217 /* 0xa0 */ 0x00a0, 0x00a1, 0x00a2, 0x00a3, 0x20ac, 0x00a5, 0x0000, 0x00a7,
218 /* 0xa8 */ 0x00a4, 0x2018, 0x201c, 0x00ab, 0x2190, 0x2191, 0x2192, 0x2193,
219 /* 0xb0 */ 0x00b0, 0x00b1, 0x00b2, 0x00b3, 0x00d7, 0x00b5, 0x00b6, 0x00b7,
220 /* 0xb8 */ 0x00f7, 0x2019, 0x201d, 0x00bb, 0x00bc, 0x00bd, 0x00be, 0x00bf,
221 /* 0xc0 */ 0x0000, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
222 /* 0xc8 */ 0xffff, 0x0000, 0xffff, 0xffff, 0x0000, 0xffff, 0xffff, 0xffff,
223 /* 0xd0 */ 0x2014, 0x00b9, 0x00ae, 0x00a9, 0x2122, 0x266a, 0x00ac, 0x00a6,
224 /* 0xd8 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x215b, 0x215c, 0x215d, 0x215e,
225 /* 0xe0 */ 0x2126, 0x00c6, 0x00d0, 0x00aa, 0x0126, 0x0000, 0x0132, 0x013f,
226 /* 0xe8 */ 0x0141, 0x00d8, 0x0152, 0x00ba, 0x00de, 0x0166, 0x014a, 0x0149,
227 /* 0xf0 */ 0x0138, 0x00e6, 0x0111, 0x00f0, 0x0127, 0x0131, 0x0133, 0x0140,
228 /* 0xf8 */ 0x0142, 0x00f8, 0x0153, 0x00df, 0x00fe, 0x0167, 0x014b, 0x00ad
231 /* The outer array range runs from 0xc1 to 0xcf, the inner range from 0x40
233 static const uint16_t to_ucs4_comb[15][64] =
237 /* 0x40 */ 0x0000, 0x00c0, 0x0000, 0x0000, 0x0000, 0x00c8, 0x0000, 0x0000,
238 /* 0x48 */ 0x0000, 0x00cc, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x00d2,
239 /* 0x50 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x00d9, 0x0000, 0x0000,
240 /* 0x58 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
241 /* 0x60 */ 0x0000, 0x00e0, 0x0000, 0x0000, 0x0000, 0x00e8, 0x0000, 0x0000,
242 /* 0x68 */ 0x0000, 0x00ec, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x00f2,
243 /* 0x70 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x00f9, 0x0000, 0x0000,
244 /* 0x78 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000
248 /* 0x40 */ 0x0000, 0x00c1, 0x0000, 0x0106, 0x0000, 0x00c9, 0x0000, 0x0000,
249 /* 0x48 */ 0x0000, 0x00cd, 0x0000, 0x0000, 0x0139, 0x0000, 0x0143, 0x00d3,
250 /* 0x50 */ 0x0000, 0x0000, 0x0154, 0x015a, 0x0000, 0x00da, 0x0000, 0x0000,
251 /* 0x58 */ 0x0000, 0x00dd, 0x0179, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
252 /* 0x60 */ 0x0000, 0x00e1, 0x0000, 0x0107, 0x0000, 0x00e9, 0x0000, 0x0000,
253 /* 0x68 */ 0x0000, 0x00ed, 0x0000, 0x0000, 0x013a, 0x0000, 0x0144, 0x00f3,
254 /* 0x70 */ 0x0000, 0x0000, 0x0155, 0x015b, 0x0000, 0x00fa, 0x0000, 0x0000,
255 /* 0x78 */ 0x0000, 0x00fd, 0x017a, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000
259 /* 0x40 */ 0x0000, 0x00c2, 0x0000, 0x0108, 0x0000, 0x00ca, 0x0000, 0x011c,
260 /* 0x48 */ 0x0124, 0x00ce, 0x0134, 0x0000, 0x0000, 0x0000, 0x0000, 0x00d4,
261 /* 0x50 */ 0x0000, 0x0000, 0x0000, 0x015c, 0x0000, 0x00db, 0x0000, 0x0174,
262 /* 0x58 */ 0x0000, 0x0176, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
263 /* 0x60 */ 0x0000, 0x00e2, 0x0000, 0x0109, 0x0000, 0x00ea, 0x0000, 0x011d,
264 /* 0x68 */ 0x0125, 0x00ee, 0x0135, 0x0000, 0x0000, 0x0000, 0x0000, 0x00f4,
265 /* 0x70 */ 0x0000, 0x0000, 0x0000, 0x015d, 0x0000, 0x00fb, 0x0000, 0x0175,
266 /* 0x78 */ 0x0000, 0x0177, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000
270 /* 0x40 */ 0x0000, 0x00c3, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
271 /* 0x48 */ 0x0000, 0x0128, 0x0000, 0x0000, 0x0000, 0x0000, 0x00d1, 0x00d5,
272 /* 0x50 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0168, 0x0000, 0x0000,
273 /* 0x58 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
274 /* 0x60 */ 0x0000, 0x00e3, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
275 /* 0x68 */ 0x0000, 0x0129, 0x0000, 0x0000, 0x0000, 0x0000, 0x00f1, 0x00f5,
276 /* 0x70 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0169, 0x0000, 0x0000,
277 /* 0x78 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000
281 /* 0x40 */ 0x0000, 0x0100, 0x0000, 0x0000, 0x0000, 0x0112, 0x0000, 0x0000,
282 /* 0x48 */ 0x0000, 0x012a, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x014c,
283 /* 0x50 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x016a, 0x0000, 0x0000,
284 /* 0x58 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
285 /* 0x60 */ 0x0000, 0x0101, 0x0000, 0x0000, 0x0000, 0x0113, 0x0000, 0x0000,
286 /* 0x68 */ 0x0000, 0x012b, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x014d,
287 /* 0x70 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x016b, 0x0000, 0x0000,
288 /* 0x78 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000
292 /* 0x40 */ 0x0000, 0x0102, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x011e,
293 /* 0x48 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
294 /* 0x50 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x016c, 0x0000, 0x0000,
295 /* 0x58 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
296 /* 0x60 */ 0x0000, 0x0103, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x011f,
297 /* 0x68 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
298 /* 0x70 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x016d, 0x0000, 0x0000,
299 /* 0x78 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000
303 /* 0x40 */ 0x0000, 0x0000, 0x0000, 0x010a, 0x0000, 0x0116, 0x0000, 0x0120,
304 /* 0x48 */ 0x0000, 0x0130, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
305 /* 0x50 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
306 /* 0x58 */ 0x0000, 0x0000, 0x017b, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
307 /* 0x60 */ 0x0000, 0x0000, 0x0000, 0x010b, 0x0000, 0x0117, 0x0000, 0x0121,
308 /* 0x68 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
309 /* 0x70 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
310 /* 0x78 */ 0x0000, 0x0000, 0x017c, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000
314 /* 0x40 */ 0x0000, 0x00c4, 0x0000, 0x0000, 0x0000, 0x00cb, 0x0000, 0x0000,
315 /* 0x48 */ 0x0000, 0x00cf, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x00d6,
316 /* 0x50 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x00dc, 0x0000, 0x0000,
317 /* 0x58 */ 0x0000, 0x0178, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
318 /* 0x60 */ 0x0000, 0x00e4, 0x0000, 0x0000, 0x0000, 0x00eb, 0x0000, 0x0000,
319 /* 0x68 */ 0x0000, 0x00ef, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x00f6,
320 /* 0x70 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x00fc, 0x0000, 0x0000,
321 /* 0x78 */ 0x0000, 0x00ff, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000
329 /* 0x40 */ 0x0000, 0x00c5, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
330 /* 0x48 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
331 /* 0x50 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x016e, 0x0000, 0x0000,
332 /* 0x58 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
333 /* 0x60 */ 0x0000, 0x00e5, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
334 /* 0x68 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
335 /* 0x70 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x016f, 0x0000, 0x0000,
336 /* 0x78 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000
340 /* 0x40 */ 0x0000, 0x0000, 0x0000, 0x00c7, 0x0000, 0x0000, 0x0000, 0x0122,
341 /* 0x48 */ 0x0000, 0x0000, 0x0000, 0x0136, 0x013b, 0x0000, 0x0145, 0x0000,
342 /* 0x50 */ 0x0000, 0x0000, 0x0156, 0x015e, 0x0162, 0x0000, 0x0000, 0x0000,
343 /* 0x58 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
344 /* 0x60 */ 0x0000, 0x0000, 0x0000, 0x00e7, 0x0000, 0x0000, 0x0000, 0x0123,
345 /* 0x68 */ 0x0000, 0x0000, 0x0000, 0x0137, 0x013c, 0x0000, 0x0146, 0x0000,
346 /* 0x70 */ 0x0000, 0x0000, 0x0157, 0x015f, 0x0163, 0x0000, 0x0000, 0x0000,
347 /* 0x78 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000
355 /* 0x40 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
356 /* 0x48 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0150,
357 /* 0x50 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0170, 0x0000, 0x0000,
358 /* 0x58 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
359 /* 0x60 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
360 /* 0x68 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0151,
361 /* 0x70 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0171, 0x0000, 0x0000,
362 /* 0x78 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000
366 /* 0x40 */ 0x0000, 0x0104, 0x0000, 0x0000, 0x0000, 0x0118, 0x0000, 0x0000,
367 /* 0x48 */ 0x0000, 0x012e, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
368 /* 0x50 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0172, 0x0000, 0x0000,
369 /* 0x58 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
370 /* 0x60 */ 0x0000, 0x0105, 0x0000, 0x0000, 0x0000, 0x0119, 0x0000, 0x0000,
371 /* 0x68 */ 0x0000, 0x012f, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
372 /* 0x70 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0173, 0x0000, 0x0000,
373 /* 0x78 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000
377 /* 0x40 */ 0x0000, 0x0000, 0x0000, 0x010c, 0x010e, 0x011a, 0x0000, 0x0000,
378 /* 0x48 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x013d, 0x0000, 0x0147, 0x0000,
379 /* 0x50 */ 0x0000, 0x0000, 0x0158, 0x0160, 0x0164, 0x0000, 0x0000, 0x0000,
380 /* 0x58 */ 0x0000, 0x0000, 0x017d, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
381 /* 0x60 */ 0x0000, 0x0000, 0x0000, 0x010d, 0x010f, 0x011b, 0x0000, 0x0000,
382 /* 0x68 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x013e, 0x0000, 0x0148, 0x0000,
383 /* 0x70 */ 0x0000, 0x0000, 0x0159, 0x0161, 0x0165, 0x0000, 0x0000, 0x0000,
384 /* 0x78 */ 0x0000, 0x0000, 0x017e, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000
388 static size_t ISO6937toUTF8( const unsigned char **inbuf, size_t *inbytesleft,
389 unsigned char **outbuf, size_t *outbytesleft )
393 if( !inbuf || !(*inbuf) )
394 return (size_t)(0); /* Reset state requested */
396 const unsigned char *iptr = *inbuf;
397 const unsigned char *iend = iptr + *inbytesleft;
398 unsigned char *optr = *outbuf;
399 unsigned char *oend = optr + *outbytesleft;
403 while ( iptr < iend )
410 break; /* No space in outbuf */
417 if ( optr + 2 >= oend )
420 break; /* No space in outbuf for multibyte char */
423 ch = to_ucs4[*iptr - 0x80];
427 /* Composed character */
428 if ( iptr + 1 >= iend )
431 break; /* No next character */
433 if ( iptr[1] < 0x40 || iptr[1] >= 0x80 ||
434 !(ch = to_ucs4_comb[iptr[0] - 0xc1][iptr[1] - 0x40]) )
437 break; /* Illegal combination */
454 optr[1] = 0x80 | (ch & 0x3f);
455 optr[0] = 0xc0 | (ch >> 6);
460 optr[2] = 0x80 | (ch & 0x3f);
462 optr[1] = 0x80 | (ch & 0x3f);
463 optr[0] = 0xe0 | (ch >> 6);
470 *inbytesleft = iend - iptr;
471 *outbytesleft = oend - optr;
484 /*****************************************************************************
486 *****************************************************************************/
487 vlc_iconv_t vlc_iconv_open( const char *tocode, const char *fromcode )
490 if( !strcasecmp(tocode, "UTF-8") && !strcasecmp(fromcode, "ISO_6937") )
491 return (vlc_iconv_t)(-2);
493 #if defined(HAVE_ICONV)
494 return iconv_open( tocode, fromcode );
496 return (vlc_iconv_t)(-1);
500 size_t vlc_iconv( vlc_iconv_t cd, const char **inbuf, size_t *inbytesleft,
501 char **outbuf, size_t *outbytesleft )
504 if ( cd == (vlc_iconv_t)(-2) )
505 return ISO6937toUTF8( (const unsigned char **)inbuf, inbytesleft,
506 (unsigned char **)outbuf, outbytesleft );
508 #if defined(HAVE_ICONV)
509 return iconv( cd, (ICONV_CONST char **)inbuf, inbytesleft,
510 outbuf, outbytesleft );
516 int vlc_iconv_close( vlc_iconv_t cd )
519 if ( cd == (vlc_iconv_t)(-2) )
522 #if defined(HAVE_ICONV)
523 return iconv_close( cd );
529 /*****************************************************************************
531 * (adapted from libavcodec, author Michael Niedermayer <michaelni@gmx.at>)
532 *****************************************************************************/
533 bool vlc_ureduce( unsigned *pi_dst_nom, unsigned *pi_dst_den,
534 uint64_t i_nom, uint64_t i_den, uint64_t i_max )
546 i_gcd = GCD( i_nom, i_den );
550 if( i_max == 0 ) i_max = INT64_C(0xFFFFFFFF);
552 if( i_nom > i_max || i_den > i_max )
554 uint64_t i_a0_num = 0, i_a0_den = 1, i_a1_num = 1, i_a1_den = 0;
559 uint64_t i_x = i_nom / i_den;
560 uint64_t i_a2n = i_x * i_a1_num + i_a0_num;
561 uint64_t i_a2d = i_x * i_a1_den + i_a0_den;
563 if( i_a2n > i_max || i_a2d > i_max ) break;
567 i_a0_num = i_a1_num; i_a0_den = i_a1_den;
568 i_a1_num = i_a2n; i_a1_den = i_a2d;
569 if( i_nom == 0 ) break;
570 i_x = i_nom; i_nom = i_den; i_den = i_x;
583 /*************************************************************************
584 * vlc_execve: Execute an external program with a given environment,
585 * wait until it finishes and return its standard output
586 *************************************************************************/
587 int vlc_execve( vlc_object_t *p_object, int i_argc, char *const *ppsz_argv,
588 char *const *ppsz_env, const char *psz_cwd,
589 const char *p_in, size_t i_in,
590 char **pp_data, size_t *pi_data )
592 (void)i_argc; // <-- hmph
594 # define BUFSIZE 1024
595 int fds[2], i_status;
597 if (socketpair (PF_LOCAL, SOCK_STREAM, 0, fds))
601 if ((fds[0] > 2) && (fds[1] > 2))
607 msg_Err (p_object, "unable to fork (%m)");
616 pthread_sigmask (SIG_SETMASK, &set, NULL);
619 * Like it or not, close can fail (and not only with EBADF)
621 if ((dup2 (fds[1], 0) == 0) && (dup2 (fds[1], 1) == 1)
622 && ((psz_cwd == NULL) || (chdir (psz_cwd) == 0)))
623 execve (ppsz_argv[0], ppsz_argv, ppsz_env);
625 _exit (EXIT_FAILURE);
637 shutdown (fds[0], SHUT_WR);
639 while (!p_object->b_die)
641 struct pollfd ufd[1];
642 memset (ufd, 0, sizeof (ufd));
644 ufd[0].events = POLLIN;
647 ufd[0].events |= POLLOUT;
649 if (poll (ufd, 1, 10) <= 0)
652 if (ufd[0].revents & ~POLLOUT)
654 char *ptr = realloc (*pp_data, *pi_data + BUFSIZE + 1);
656 break; /* safely abort */
660 ssize_t val = read (fds[0], ptr + *pi_data, BUFSIZE);
665 shutdown (fds[0], SHUT_RD);
673 if (ufd[0].revents & POLLOUT)
675 ssize_t val = write (fds[0], p_in, i_in);
681 shutdown (fds[0], SHUT_WR);
693 while (waitpid (pid, &i_status, 0) == -1);
695 if (WIFEXITED (i_status))
697 i_status = WEXITSTATUS (i_status);
699 msg_Warn (p_object, "child %s (PID %d) exited with error code %d",
700 ppsz_argv[0], (int)pid, i_status);
703 if (WIFSIGNALED (i_status)) // <-- this should be redumdant a check
705 i_status = WTERMSIG (i_status);
706 msg_Warn (p_object, "child %s (PID %d) exited on signal %d (%s)",
707 ppsz_argv[0], (int)pid, i_status, strsignal (i_status));
710 #elif defined( WIN32 ) && !defined( UNDER_CE )
711 SECURITY_ATTRIBUTES saAttr;
712 PROCESS_INFORMATION piProcInfo;
713 STARTUPINFO siStartInfo;
714 BOOL bFuncRetn = FALSE;
715 HANDLE hChildStdinRd, hChildStdinWr, hChildStdoutRd, hChildStdoutWr;
717 char *psz_cmd = NULL, *p_env = NULL, *p = NULL;
721 /* Set the bInheritHandle flag so pipe handles are inherited. */
722 saAttr.nLength = sizeof(SECURITY_ATTRIBUTES);
723 saAttr.bInheritHandle = TRUE;
724 saAttr.lpSecurityDescriptor = NULL;
726 /* Create a pipe for the child process's STDOUT. */
727 if ( !CreatePipe( &hChildStdoutRd, &hChildStdoutWr, &saAttr, 0 ) )
729 msg_Err( p_object, "stdout pipe creation failed" );
733 /* Ensure the read handle to the pipe for STDOUT is not inherited. */
734 SetHandleInformation( hChildStdoutRd, HANDLE_FLAG_INHERIT, 0 );
736 /* Create a pipe for the child process's STDIN. */
737 if ( !CreatePipe( &hChildStdinRd, &hChildStdinWr, &saAttr, 0 ) )
739 msg_Err( p_object, "stdin pipe creation failed" );
743 /* Ensure the write handle to the pipe for STDIN is not inherited. */
744 SetHandleInformation( hChildStdinWr, HANDLE_FLAG_INHERIT, 0 );
746 /* Set up members of the PROCESS_INFORMATION structure. */
747 ZeroMemory( &piProcInfo, sizeof(PROCESS_INFORMATION) );
749 /* Set up members of the STARTUPINFO structure. */
750 ZeroMemory( &siStartInfo, sizeof(STARTUPINFO) );
751 siStartInfo.cb = sizeof(STARTUPINFO);
752 siStartInfo.hStdError = hChildStdoutWr;
753 siStartInfo.hStdOutput = hChildStdoutWr;
754 siStartInfo.hStdInput = hChildStdinRd;
755 siStartInfo.wShowWindow = SW_HIDE;
756 siStartInfo.dwFlags |= STARTF_USESTDHANDLES | STARTF_USESHOWWINDOW;
758 /* Set up the command line. */
759 psz_cmd = malloc(32768);
764 ppsz_parser = &ppsz_argv[0];
765 while ( ppsz_parser[0] != NULL && i_size > 0 )
767 /* Protect the last argument with quotes ; the other arguments
768 * are supposed to be already protected because they have been
769 * passed as a command-line option. */
770 if ( ppsz_parser[1] == NULL )
772 strncat( psz_cmd, "\"", i_size );
775 strncat( psz_cmd, *ppsz_parser, i_size );
776 i_size -= strlen( *ppsz_parser );
777 if ( ppsz_parser[1] == NULL )
779 strncat( psz_cmd, "\"", i_size );
782 strncat( psz_cmd, " ", i_size );
787 /* Set up the environment. */
788 p = p_env = malloc(32768);
796 ppsz_parser = &ppsz_env[0];
797 while ( *ppsz_parser != NULL && i_size > 0 )
799 memcpy( p, *ppsz_parser,
800 __MIN((int)(strlen(*ppsz_parser) + 1), i_size) );
801 p += strlen(*ppsz_parser) + 1;
802 i_size -= strlen(*ppsz_parser) + 1;
807 /* Create the child process. */
808 bFuncRetn = CreateProcess( NULL,
809 psz_cmd, // command line
810 NULL, // process security attributes
811 NULL, // primary thread security attributes
812 TRUE, // handles are inherited
816 &siStartInfo, // STARTUPINFO pointer
817 &piProcInfo ); // receives PROCESS_INFORMATION
822 if ( bFuncRetn == 0 )
824 msg_Err( p_object, "child creation failed" );
828 /* Read from a file and write its contents to a pipe. */
829 while ( i_in > 0 && !p_object->b_die )
832 if ( !WriteFile( hChildStdinWr, p_in, i_in, &i_written, NULL ) )
838 /* Close the pipe handle so the child process stops reading. */
839 CloseHandle(hChildStdinWr);
841 /* Close the write end of the pipe before reading from the
842 * read end of the pipe. */
843 CloseHandle(hChildStdoutWr);
845 /* Read output from the child process. */
850 *pp_data = malloc( 1025 ); /* +1 for \0 */
852 while ( !p_object->b_die )
855 if ( !ReadFile( hChildStdoutRd, &(*pp_data)[*pi_data], 1024, &i_read,
860 *pp_data = xrealloc( *pp_data, *pi_data + 1025 );
863 while ( !p_object->b_die
864 && !GetExitCodeProcess( piProcInfo.hProcess, &i_status )
865 && i_status != STILL_ACTIVE )
868 CloseHandle(piProcInfo.hProcess);
869 CloseHandle(piProcInfo.hThread);
873 "child %s returned with error code %ld",
874 ppsz_argv[0], i_status );
877 msg_Err( p_object, "vlc_execve called but no implementation is available" );
882 if (*pp_data == NULL)
885 (*pp_data)[*pi_data] = '\0';