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 # include <time.h> /* time_t */
  45 #endif
  46
  47 #ifndef HAVE_LLDIV
  48 typedef struct
  49 {
  50     long long quot; /* Quotient. */
  51     long long rem;  /* Remainder. */
  52 } lldiv_t;
  53 #endif
  54
  55 #if !defined(HAVE_GETENV) || \
  56     !defined(HAVE_USELOCALE)
  57 # include <stddef.h> /* NULL */
  58 #endif
  59
  60 #if !defined (HAVE_REWIND) || \
  61     !defined (HAVE_GETDELIM)
  62 # include <stdio.h> /* FILE */
  63 #endif
  64
  65 #if !defined (HAVE_POSIX_MEMALIGN) || \
  66     !defined (HAVE_STRLCPY) || \
  67     !defined (HAVE_STRNDUP) || \
  68     !defined (HAVE_STRNLEN)
  69 # include <stddef.h> /* size_t */
  70 #endif
  71
  72 #ifndef HAVE_VASPRINTF
  73 # include <stdarg.h> /* va_list */
  74 #endif
  75
  76 #if !defined (HAVE_GETDELIM) || \
  77     !defined (HAVE_GETPID)   || \
  78     !defined (HAVE_SWAB)
  79 # include <sys/types.h> /* ssize_t, pid_t */
  80 #endif
  81
  82 #if !defined (HAVE_DIRFD) || \
  83     !defined (HAVE_FDOPENDIR)
  84 # include <dirent.h>
  85 #endif
  86
  87 #ifdef __cplusplus
  88 # define VLC_NOTHROW throw ()
  89 extern "C" {
  90 #else
  91 # define VLC_NOTHROW
  92 #endif
  93
  94 /* stdio.h */
  95 #ifndef HAVE_ASPRINTF
  96 int asprintf (char **, const char *, ...);
  97 #endif
  98
  99 #ifndef HAVE_FLOCKFILE
 100 void flockfile (FILE *);
 101 int ftrylockfile (FILE *);
 102 void funlockfile (FILE *);
 103 int getc_unlocked (FILE *);
 104 int getchar_unlocked (void);
 105 int putc_unlocked (int, FILE *);
 106 int putchar_unlocked (int);
 107 #endif
 108
 109 #ifndef HAVE_GETDELIM
 110 ssize_t getdelim (char **, size_t *, int, FILE *);
 111 ssize_t getline (char **, size_t *, FILE *);
 112 #endif
 113
 114 #ifndef HAVE_REWIND
 115 void rewind (FILE *);
 116 #endif
 117
 118 #ifndef HAVE_VASPRINTF
 119 int vasprintf (char **, const char *, va_list);
 120 #endif
 121
 122 /* string.h */
 123 #ifndef HAVE_FFSLL
 124 int ffsll(unsigned long long);
 125 #endif
 126
 127 #ifndef HAVE_STRCASECMP
 128 int strcasecmp (const char *, const char *);
 129 #endif
 130
 131 #ifndef HAVE_STRCASESTR
 132 char *strcasestr (const char *, const char *);
 133 #endif
 134
 135 #ifndef HAVE_STRDUP
 136 char *strdup (const char *);
 137 #endif
 138
 139 #ifndef HAVE_STRVERSCMP
 140 int strverscmp (const char *, const char *);
 141 #endif
 142
 143 #ifndef HAVE_STRNLEN
 144 size_t strnlen (const char *, size_t);
 145 #endif
 146
 147 #ifndef HAVE_STRNDUP
 148 char *strndup (const char *, size_t);
 149 #endif
 150
 151 #ifndef HAVE_STRLCPY
 152 size_t strlcpy (char *, const char *, size_t);
 153 #endif
 154
 155 #ifndef HAVE_STRSEP
 156 char *strsep (char **, const char *);
 157 #endif
 158
 159 #ifndef HAVE_STRTOK_R
 160 char *strtok_r(char *, const char *, char **);
 161 #endif
 162
 163 /* stdlib.h */
 164 #ifndef HAVE_ATOF
 165 #ifndef __ANDROID__
 166 double atof (const char *);
 167 #endif
 168 #endif
 169
 170 #ifndef HAVE_ATOLL
 171 long long atoll (const char *);
 172 #endif
 173
 174 #ifndef HAVE_LLDIV
 175 lldiv_t lldiv (long long, long long);
 176 #endif
 177
 178 #ifndef HAVE_STRTOF
 179 #ifndef __ANDROID__
 180 float strtof (const char *, char **);
 181 #endif
 182 #endif
 183
 184 #ifndef HAVE_STRTOLL
 185 long long int strtoll (const char *, char **, int);
 186 #endif
 187
 188 /* time.h */
 189 #ifndef HAVE_GMTIME_R
 190 struct tm *gmtime_r (const time_t *, struct tm *);
 191 #endif
 192
 193 #ifndef HAVE_LOCALTIME_R
 194 struct tm *localtime_r (const time_t *, struct tm *);
 195 #endif
 196
 197 /* unistd.h */
 198 #ifndef HAVE_GETPID
 199 pid_t getpid (void) VLC_NOTHROW;
 200 #endif
 201
 202 #ifndef HAVE_FSYNC
 203 int fsync (int fd);
 204 #endif
 205
 206 /* dirent.h */
 207 #ifndef HAVE_DIRFD
 208 int (dirfd) (DIR *);
 209 #endif
 210
 211 #ifndef HAVE_FDOPENDIR
 212 DIR *fdopendir (int);
 213 #endif
 214
 215 #ifdef __cplusplus
 216 } /* extern "C" */
 217 #endif
 218
 219 /* stdlib.h */
 220 #ifndef HAVE_GETENV
 221 static inline char *getenv (const char *name)
 222 {
 223     (void)name;
 224     return NULL;
 225 }
 226 #endif
 227
 228 #ifndef HAVE_SETENV
 229 int setenv (const char *, const char *, int);
 230 int unsetenv (const char *);
 231 #endif
 232
 233 #ifndef HAVE_POSIX_MEMALIGN
 234 int posix_memalign (void **, size_t, size_t);
 235 #endif
 236
 237 /* locale.h */
 238 #ifndef HAVE_USELOCALE
 239 #define LC_ALL_MASK      0
 240 #define LC_NUMERIC_MASK  0
 241 #define LC_MESSAGES_MASK 0
 242 #define LC_GLOBAL_LOCALE ((locale_t)(uintptr_t)1)
 243 typedef void *locale_t;
 244 static inline locale_t uselocale(locale_t loc)
 245 {
 246     (void)loc;
 247     return NULL;
 248 }
 249 static inline void freelocale(locale_t loc)
 250 {
 251     (void)loc;
 252 }
 253 static inline locale_t newlocale(int mask, const char * locale, locale_t base)
 254 {
 255     (void)mask; (void)locale; (void)base;
 256     return NULL;
 257 }
 258 #endif
 259
 260 #if !defined (HAVE_STATIC_ASSERT) && !defined(__cpp_static_assert)
 261 # define _Static_assert(x, s) ((void) sizeof (struct { unsigned:-!(x); }))
 262 # define static_assert _Static_assert
 263 #endif
 264
 265 /* Alignment of critical static data structures */
 266 #ifdef ATTRIBUTE_ALIGNED_MAX
 267 #   define ATTR_ALIGN(align) __attribute__ ((__aligned__ ((ATTRIBUTE_ALIGNED_MAX < align) ? ATTRIBUTE_ALIGNED_MAX : align)))
 268 #else
 269 #   define ATTR_ALIGN(align)
 270 #endif
 271
 272 /* libintl support */
 273 #define _(str)            vlc_gettext (str)
 274 #define N_(str)           gettext_noop (str)
 275 #define gettext_noop(str) (str)
 276
 277 #ifdef __cplusplus
 278 extern "C" {
 279 #endif
 280
 281 #ifndef HAVE_SWAB
 282 void swab (const void *, void *, ssize_t);
 283 #endif
 284
 285 /* Socket stuff */
 286 #ifndef HAVE_INET_PTON
 287 int inet_pton(int, const char *, void *);
 288 const char *inet_ntop(int, const void *, char *, int);
 289 #endif
 290
 291 #ifndef HAVE_STRUCT_POLLFD
 292 enum
 293 {
 294     POLLERR=0x1,
 295     POLLHUP=0x2,
 296     POLLNVAL=0x4,
 297     POLLWRNORM=0x10,
 298     POLLWRBAND=0x20,
 299     POLLRDNORM=0x100,
 300     POLLRDBAND=0x200,
 301     POLLPRI=0x400,
 302 };
 303 #define POLLIN  (POLLRDNORM|POLLRDBAND)
 304 #define POLLOUT (POLLWRNORM|POLLWRBAND)
 305
 306 struct pollfd
 307 {
 308     int fd;
 309     unsigned events;
 310     unsigned revents;
 311 };
 312 #endif
 313 #ifndef HAVE_POLL
 314 struct pollfd;
 315 int poll (struct pollfd *, unsigned, int);
 316 #endif
 317
 318 #ifndef HAVE_IF_NAMEINDEX
 319 #include <errno.h>
 320 struct if_nameindex
 321 {
 322     unsigned if_index;
 323     char    *if_name;
 324 };
 325 # ifndef HAVE_IF_NAMETOINDEX
 326 #  define if_nametoindex(name)   atoi(name)
 327 # endif
 328 # define if_nameindex()         (errno = ENOBUFS, NULL)
 329 # define if_freenameindex(list) (void)0
 330 #endif
 331
 332 /* search.h */
 333 #ifndef HAVE_SEARCH_H
 334 typedef struct entry {
 335     char *key;
 336     void *data;
 337 } ENTRY;
 338
 339 typedef enum {
 340     FIND, ENTER
 341 } ACTION;
 342
 343 typedef enum {
 344     preorder,
 345     postorder,
 346     endorder,
 347     leaf
 348 } VISIT;
 349
 350 void *tsearch( const void *key, void **rootp, int(*cmp)(const void *, const void *) );
 351 void *tfind( const void *key, const void **rootp, int(*cmp)(const void *, const void *) );
 352 void *tdelete( const void *key, void **rootp, int(*cmp)(const void *, const void *) );
 353 void twalk( const void *root, void(*action)(const void *nodep, VISIT which, int depth) );
 354 void tdestroy( void *root, void (*free_node)(void *nodep) );
 355 #else // HAVE_SEARCH_H
 356 # ifndef HAVE_TDESTROY
 357 #  define tdestroy vlc_tdestroy
 358 # endif
 359 #endif
 360
 361 /* Random numbers */
 362 #ifndef HAVE_NRAND48
 363 double erand48 (unsigned short subi[3]);
 364 long jrand48 (unsigned short subi[3]);
 365 long nrand48 (unsigned short subi[3]);
 366 #endif
 367
 368 #ifdef __OS2__
 369 # undef HAVE_FORK   /* Implementation of fork() is imperfect on OS/2 */
 370
 371 struct addrinfo
 372 {
 373     int ai_flags;
 374     int ai_family;
 375     int ai_socktype;
 376     int ai_protocol;
 377     size_t ai_addrlen;
 378     struct sockaddr *ai_addr;
 379     char *ai_canonname;
 380     struct addrinfo *ai_next;
 381 };
 382
 383 void freeaddrinfo (struct addrinfo *res);
 384 #endif
 385
 386 /* math.h */
 387
 388 #ifndef HAVE_NANF
 389 #define nanf(tagp) NAN
 390 #endif
 391
 392 #ifdef _WIN32
 393 FILE *vlc_win32_tmpfile(void);
 394 #endif
 395
 396 #ifdef __cplusplus
 397 } /* extern "C" */
 398 #endif
 399
 400 #endif /* !LIBVLC_FIXUPS_H */