include/vlc_fixups.h

   1 /*****************************************************************************
   2  * vlc_fixups.h: portability fixups included from config.h
   3  *****************************************************************************
   4  * Copyright © 1998-2008 the VideoLAN project
   5  *
   6  * This program is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU Lesser General Public License as published by
   8  * the Free Software Foundation; either version 2.1 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  14  * GNU Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public License
  17  * along with this program; if not, write to the Free Software Foundation,
  18  * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  19  *****************************************************************************/
  20
  21 /**
  22  * \file
  23  * This file is a collection of portability fixes
  24  */
  25
  26 #ifndef LIBVLC_FIXUPS_H
  27 # define LIBVLC_FIXUPS_H 1
  28
  29 /* C++11 says there's no need to define __STDC_*_MACROS when including
  30  * inttypes.h and stdint.h. */
  31 #if defined (__cplusplus) && (!defined(HAVE_CXX11) || defined(__MINGW32__))
  32 # ifndef __STDC_FORMAT_MACROS
  33 #  define __STDC_FORMAT_MACROS 1
  34 # endif
  35 # ifndef __STDC_CONSTANT_MACROS
  36 #  define __STDC_CONSTANT_MACROS 1
  37 # endif
  38 # ifndef __STDC_LIMIT_MACROS
  39 #  define __STDC_LIMIT_MACROS 1
  40 # endif
  41 #endif
  42
  43 #if !defined (HAVE_GMTIME_R) || !defined (HAVE_LOCALTIME_R) \
  44  || !defined (HAVE_TIMEGM)
  45 # include <time.h> /* time_t */
  46 #endif
  47
  48 #ifndef HAVE_LLDIV
  49 typedef struct
  50 {
  51     long long quot; /* Quotient. */
  52     long long rem;  /* Remainder. */
  53 } lldiv_t;
  54 #endif
  55
  56 #if !defined(HAVE_GETENV) || \
  57     !defined(HAVE_USELOCALE)
  58 # include <stddef.h> /* NULL */
  59 #endif
  60
  61 #if !defined (HAVE_REWIND) || \
  62     !defined (HAVE_GETDELIM)
  63 # include <stdio.h> /* FILE */
  64 #endif
  65
  66 #if !defined (HAVE_POSIX_MEMALIGN) || \
  67     !defined (HAVE_STRLCPY) || \
  68     !defined (HAVE_STRNDUP) || \
  69     !defined (HAVE_STRNLEN)
  70 # include <stddef.h> /* size_t */
  71 #endif
  72
  73 #ifndef HAVE_VASPRINTF
  74 # include <stdarg.h> /* va_list */
  75 #endif
  76
  77 #if !defined (HAVE_GETDELIM) || \
  78     !defined (HAVE_GETPID)   || \
  79     !defined (HAVE_SWAB)
  80 # include <sys/types.h> /* ssize_t, pid_t */
  81 #endif
  82
  83 #if !defined (HAVE_DIRFD) || \
  84     !defined (HAVE_FDOPENDIR)
  85 # include <dirent.h>
  86 #endif
  87
  88 #ifdef __cplusplus
  89 # define VLC_NOTHROW throw ()
  90 extern "C" {
  91 #else
  92 # define VLC_NOTHROW
  93 #endif
  94
  95 /* stdio.h */
  96 #ifndef HAVE_ASPRINTF
  97 int asprintf (char **, const char *, ...);
  98 #endif
  99
 100 #ifndef HAVE_FLOCKFILE
 101 void flockfile (FILE *);
 102 int ftrylockfile (FILE *);
 103 void funlockfile (FILE *);
 104 int getc_unlocked (FILE *);
 105 int getchar_unlocked (void);
 106 int putc_unlocked (int, FILE *);
 107 int putchar_unlocked (int);
 108 #endif
 109
 110 #ifndef HAVE_GETDELIM
 111 ssize_t getdelim (char **, size_t *, int, FILE *);
 112 ssize_t getline (char **, size_t *, FILE *);
 113 #endif
 114
 115 #ifndef HAVE_REWIND
 116 void rewind (FILE *);
 117 #endif
 118
 119 #ifndef HAVE_VASPRINTF
 120 int vasprintf (char **, const char *, va_list);
 121 #endif
 122
 123 /* string.h */
 124 #ifndef HAVE_FFSLL
 125 int ffsll(unsigned long long);
 126 #endif
 127
 128 #ifndef HAVE_STRCASECMP
 129 int strcasecmp (const char *, const char *);
 130 #endif
 131
 132 #ifndef HAVE_STRCASESTR
 133 char *strcasestr (const char *, const char *);
 134 #endif
 135
 136 #ifndef HAVE_STRDUP
 137 char *strdup (const char *);
 138 #endif
 139
 140 #ifndef HAVE_STRVERSCMP
 141 int strverscmp (const char *, const char *);
 142 #endif
 143
 144 #ifndef HAVE_STRNLEN
 145 size_t strnlen (const char *, size_t);
 146 #endif
 147
 148 #ifndef HAVE_STRNSTR
 149 char * strnstr (const char *, const char *, size_t);
 150 #endif
 151
 152 #ifndef HAVE_STRNDUP
 153 char *strndup (const char *, size_t);
 154 #endif
 155
 156 #ifndef HAVE_STRLCPY
 157 size_t strlcpy (char *, const char *, size_t);
 158 #endif
 159
 160 #ifndef HAVE_STRSEP
 161 char *strsep (char **, const char *);
 162 #endif
 163
 164 #ifndef HAVE_STRTOK_R
 165 char *strtok_r(char *, const char *, char **);
 166 #endif
 167
 168 /* stdlib.h */
 169 #ifndef HAVE_ATOF
 170 #ifndef __ANDROID__
 171 double atof (const char *);
 172 #endif
 173 #endif
 174
 175 #ifndef HAVE_ATOLL
 176 long long atoll (const char *);
 177 #endif
 178
 179 #ifndef HAVE_LLDIV
 180 lldiv_t lldiv (long long, long long);
 181 #endif
 182
 183 #ifndef HAVE_STRTOF
 184 #ifndef __ANDROID__
 185 float strtof (const char *, char **);
 186 #endif
 187 #endif
 188
 189 #ifndef HAVE_STRTOLL
 190 long long int strtoll (const char *, char **, int);
 191 #endif
 192
 193 /* time.h */
 194 #ifndef HAVE_GMTIME_R
 195 struct tm *gmtime_r (const time_t *, struct tm *);
 196 #endif
 197
 198 #ifndef HAVE_LOCALTIME_R
 199 struct tm *localtime_r (const time_t *, struct tm *);
 200 #endif
 201
 202 #ifndef HAVE_TIMEGM
 203 time_t timegm(struct tm *);
 204 #endif
 205
 206 #ifndef HAVE_TIMESPEC_GET
 207 #define TIME_UTC 1
 208 struct timespec;
 209 int timespec_get(struct timespec *, int);
 210 #endif
 211
 212 /* unistd.h */
 213 #ifndef HAVE_GETPID
 214 pid_t getpid (void) VLC_NOTHROW;
 215 #endif
 216
 217 #ifndef HAVE_FSYNC
 218 int fsync (int fd);
 219 #endif
 220
 221 /* dirent.h */
 222 #ifndef HAVE_DIRFD
 223 int (dirfd) (DIR *);
 224 #endif
 225
 226 #ifndef HAVE_FDOPENDIR
 227 DIR *fdopendir (int);
 228 #endif
 229
 230 #ifdef __cplusplus
 231 } /* extern "C" */
 232 #endif
 233
 234 /* stdlib.h */
 235 #ifndef HAVE_GETENV
 236 static inline char *getenv (const char *name)
 237 {
 238     (void)name;
 239     return NULL;
 240 }
 241 #endif
 242
 243 #ifndef HAVE_SETENV
 244 int setenv (const char *, const char *, int);
 245 int unsetenv (const char *);
 246 #endif
 247
 248 #ifndef HAVE_POSIX_MEMALIGN
 249 int posix_memalign (void **, size_t, size_t);
 250 #endif
 251
 252 /* locale.h */
 253 #ifndef HAVE_USELOCALE
 254 #define LC_ALL_MASK      0
 255 #define LC_NUMERIC_MASK  0
 256 #define LC_MESSAGES_MASK 0
 257 #define LC_GLOBAL_LOCALE ((locale_t)(uintptr_t)1)
 258 typedef void *locale_t;
 259 static inline locale_t uselocale(locale_t loc)
 260 {
 261     (void)loc;
 262     return NULL;
 263 }
 264 static inline void freelocale(locale_t loc)
 265 {
 266     (void)loc;
 267 }
 268 static inline locale_t newlocale(int mask, const char * locale, locale_t base)
 269 {
 270     (void)mask; (void)locale; (void)base;
 271     return NULL;
 272 }
 273 #endif
 274
 275 #if !defined (HAVE_STATIC_ASSERT) && !defined(__cpp_static_assert)
 276 # define _Static_assert(x, s) ((void) sizeof (struct { unsigned:-!(x); }))
 277 # define static_assert _Static_assert
 278 #endif
 279
 280 /* Alignment of critical static data structures */
 281 #ifdef ATTRIBUTE_ALIGNED_MAX
 282 #   define ATTR_ALIGN(align) __attribute__ ((__aligned__ ((ATTRIBUTE_ALIGNED_MAX < align) ? ATTRIBUTE_ALIGNED_MAX : align)))
 283 #else
 284 #   define ATTR_ALIGN(align)
 285 #endif
 286
 287 /* libintl support */
 288 #define _(str)            vlc_gettext (str)
 289 #define N_(str)           gettext_noop (str)
 290 #define gettext_noop(str) (str)
 291
 292 #ifdef __cplusplus
 293 extern "C" {
 294 #endif
 295
 296 #ifndef HAVE_SWAB
 297 void swab (const void *, void *, ssize_t);
 298 #endif
 299
 300 /* Socket stuff */
 301 #ifndef HAVE_INET_PTON
 302 int inet_pton(int, const char *, void *);
 303 const char *inet_ntop(int, const void *, char *, int);
 304 #endif
 305
 306 #ifndef HAVE_STRUCT_POLLFD
 307 enum
 308 {
 309     POLLERR=0x1,
 310     POLLHUP=0x2,
 311     POLLNVAL=0x4,
 312     POLLWRNORM=0x10,
 313     POLLWRBAND=0x20,
 314     POLLRDNORM=0x100,
 315     POLLRDBAND=0x200,
 316     POLLPRI=0x400,
 317 };
 318 #define POLLIN  (POLLRDNORM|POLLRDBAND)
 319 #define POLLOUT (POLLWRNORM|POLLWRBAND)
 320
 321 struct pollfd
 322 {
 323     int fd;
 324     unsigned events;
 325     unsigned revents;
 326 };
 327 #endif
 328 #ifndef HAVE_POLL
 329 struct pollfd;
 330 int poll (struct pollfd *, unsigned, int);
 331 #endif
 332
 333 #ifndef HAVE_IF_NAMEINDEX
 334 #include <errno.h>
 335 struct if_nameindex
 336 {
 337     unsigned if_index;
 338     char    *if_name;
 339 };
 340 # ifndef HAVE_IF_NAMETOINDEX
 341 #  define if_nametoindex(name)   atoi(name)
 342 # endif
 343 # define if_nameindex()         (errno = ENOBUFS, NULL)
 344 # define if_freenameindex(list) (void)0
 345 #endif
 346
 347 /* search.h */
 348 #ifndef HAVE_SEARCH_H
 349 typedef struct entry {
 350     char *key;
 351     void *data;
 352 } ENTRY;
 353
 354 typedef enum {
 355     FIND, ENTER
 356 } ACTION;
 357
 358 typedef enum {
 359     preorder,
 360     postorder,
 361     endorder,
 362     leaf
 363 } VISIT;
 364
 365 void *tsearch( const void *key, void **rootp, int(*cmp)(const void *, const void *) );
 366 void *tfind( const void *key, const void **rootp, int(*cmp)(const void *, const void *) );
 367 void *tdelete( const void *key, void **rootp, int(*cmp)(const void *, const void *) );
 368 void twalk( const void *root, void(*action)(const void *nodep, VISIT which, int depth) );
 369 void tdestroy( void *root, void (*free_node)(void *nodep) );
 370 #else // HAVE_SEARCH_H
 371 # ifndef HAVE_TDESTROY
 372 #  define tdestroy vlc_tdestroy
 373 # endif
 374 #endif
 375
 376 /* Random numbers */
 377 #ifndef HAVE_NRAND48
 378 double erand48 (unsigned short subi[3]);
 379 long jrand48 (unsigned short subi[3]);
 380 long nrand48 (unsigned short subi[3]);
 381 #endif
 382
 383 #ifdef __OS2__
 384 # undef HAVE_FORK   /* Implementation of fork() is imperfect on OS/2 */
 385
 386 struct addrinfo
 387 {
 388     int ai_flags;
 389     int ai_family;
 390     int ai_socktype;
 391     int ai_protocol;
 392     size_t ai_addrlen;
 393     struct sockaddr *ai_addr;
 394     char *ai_canonname;
 395     struct addrinfo *ai_next;
 396 };
 397
 398 void freeaddrinfo (struct addrinfo *res);
 399 #endif
 400
 401 /* math.h */
 402
 403 #ifndef HAVE_NANF
 404 #define nanf(tagp) NAN
 405 #endif
 406
 407 #ifdef _WIN32
 408 FILE *vlc_win32_tmpfile(void);
 409 #endif
 410
 411 #ifdef __cplusplus
 412 } /* extern "C" */
 413 #endif
 414
 415 #endif /* !LIBVLC_FIXUPS_H */