include/vlc_fixups.h

   1 /*****************************************************************************
   2  * 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
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 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 General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, 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 #if !defined (HAVE_GMTIME_R) || !defined (HAVE_LOCALTIME_R)
  30 # include <time.h> /* time_t */
  31 #endif
  32
  33 #ifndef HAVE_LLDIV
  34 typedef struct
  35 {
  36     long long quot; /* Quotient. */
  37     long long rem;  /* Remainder. */
  38 } lldiv_t;
  39 #endif
  40
  41 #if !defined(HAVE_GETENV) || \
  42     !defined(HAVE_USELOCALE)
  43 # include <stddef.h> /* NULL */
  44 #endif
  45
  46 #if !defined (HAVE_REWIND) || \
  47     !defined (HAVE_GETDELIM)
  48 # include <stdio.h> /* FILE */
  49 #endif
  50
  51 #if !defined (HAVE_STRLCPY) || \
  52     !defined (HAVE_STRNDUP) || \
  53     !defined (HAVE_STRNLEN)
  54 # include <stddef.h> /* size_t */
  55 #endif
  56
  57 #ifndef HAVE_VASPRINTF
  58 # include <stdarg.h> /* va_list */
  59 #endif
  60
  61 #if !defined (HAVE_GETDELIM) || \
  62     !defined (HAVE_GETPID)   || \
  63     !defined (HAVE_SWAB)
  64 # include <sys/types.h> /* ssize_t, pid_t */
  65 #endif
  66
  67 #if !defined (HAVE_DIRFD) || \
  68     !defined (HAVE_FDOPENDIR)
  69 # include <dirent.h>
  70 #endif
  71
  72 #ifdef __cplusplus
  73 extern "C" {
  74 #endif
  75
  76 /* stdio.h */
  77 #ifndef HAVE_ASPRINTF
  78 int asprintf (char **, const char *, ...);
  79 #endif
  80
  81 #ifndef HAVE_FLOCKFILE
  82 void flockfile (FILE *);
  83 int ftrylockfile (FILE *);
  84 void funlockfile (FILE *);
  85 int getc_unlocked (FILE *);
  86 int getchar_unlocked (void);
  87 int putc_unlocked (int, FILE *);
  88 int putchar_unlocked (int);
  89 #endif
  90
  91 #ifndef HAVE_GETDELIM
  92 ssize_t getdelim (char **, size_t *, int, FILE *);
  93 ssize_t getline (char **, size_t *, FILE *);
  94 #endif
  95
  96 #ifndef HAVE_REWIND
  97 void rewind (FILE *);
  98 #endif
  99
 100 #ifndef HAVE_VASPRINTF
 101 int vasprintf (char **, const char *, va_list);
 102 #endif
 103
 104 /* string.h */
 105 #ifndef HAVE_STRCASECMP
 106 int strcasecmp (const char *, const char *);
 107 #endif
 108
 109 #ifndef HAVE_STRCASESTR
 110 char *strcasestr (const char *, const char *);
 111 #endif
 112
 113 #ifndef HAVE_STRDUP
 114 char *strdup (const char *);
 115 #endif
 116
 117 #ifndef HAVE_STRNCASECMP
 118 int strncasecmp (const char *, const char *, size_t);
 119 #endif
 120
 121 #ifndef HAVE_STRNLEN
 122 size_t strnlen (const char *, size_t);
 123 #endif
 124
 125 #ifndef HAVE_STRNDUP
 126 char *strndup (const char *, size_t);
 127 #endif
 128
 129 #ifndef HAVE_STRLCPY
 130 size_t strlcpy (char *, const char *, size_t);
 131 #endif
 132
 133 #ifndef HAVE_STRSEP
 134 char *strsep (char **, const char *);
 135 #endif
 136
 137 #ifndef HAVE_STRTOK_R
 138 char *strtok_r(char *, const char *, char **);
 139 #endif
 140
 141 /* stdlib.h */
 142 #ifndef HAVE_ATOF
 143 #ifndef __ANDROID__
 144 double atof (const char *);
 145 #endif
 146 #endif
 147
 148 #ifndef HAVE_ATOLL
 149 long long atoll (const char *);
 150 #endif
 151
 152 #ifndef HAVE_LLDIV
 153 lldiv_t lldiv (long long, long long);
 154 #endif
 155
 156 #ifndef HAVE_STRTOF
 157 #ifndef __ANDROID__
 158 float strtof (const char *, char **);
 159 #endif
 160 #endif
 161
 162 #ifndef HAVE_STRTOLL
 163 long long int strtoll (const char *, char **, int);
 164 #endif
 165
 166 /* time.h */
 167 #ifndef HAVE_GMTIME_R
 168 struct tm *gmtime_r (const time_t *, struct tm *);
 169 #endif
 170
 171 #ifndef HAVE_LOCALTIME_R
 172 struct tm *localtime_r (const time_t *, struct tm *);
 173 #endif
 174
 175 /* unistd.h */
 176 #ifndef HAVE_GETPID
 177 pid_t getpid (void);
 178 #endif
 179
 180 #ifndef HAVE_FSYNC
 181 int fsync (int fd);
 182 #endif
 183
 184 /* dirent.h */
 185 #ifndef HAVE_DIRFD
 186 #ifdef __APPLE__
 187 #undef dirfd
 188 #endif
 189 int dirfd (DIR *);
 190 #endif
 191
 192 #ifndef HAVE_FDOPENDIR
 193 DIR *fdopendir (int);
 194 #endif
 195
 196 #ifdef __cplusplus
 197 } /* extern "C" */
 198 #endif
 199
 200 /* stdlib.h */
 201 #ifndef HAVE_GETENV
 202 static inline char *getenv (const char *name)
 203 {
 204     (void)name;
 205     return NULL;
 206 }
 207 #endif
 208
 209 #ifndef HAVE_SETENV
 210 int setenv (const char *, const char *, int);
 211 int unsetenv (const char *);
 212 #endif
 213
 214 /* locale.h */
 215 #ifndef HAVE_USELOCALE
 216 #define LC_NUMERIC_MASK  0
 217 #define LC_MESSAGES_MASK 0
 218 typedef void *locale_t;
 219 static inline locale_t uselocale(locale_t loc)
 220 {
 221     (void)loc;
 222     return NULL;
 223 }
 224 static inline void freelocale(locale_t loc)
 225 {
 226     (void)loc;
 227 }
 228 static inline locale_t newlocale(int mask, const char * locale, locale_t base)
 229 {
 230     (void)mask; (void)locale; (void)base;
 231     return NULL;
 232 }
 233 #endif
 234
 235 /* Alignment of critical static data structures */
 236 #ifdef ATTRIBUTE_ALIGNED_MAX
 237 #   define ATTR_ALIGN(align) __attribute__ ((__aligned__ ((ATTRIBUTE_ALIGNED_MAX < align) ? ATTRIBUTE_ALIGNED_MAX : align)))
 238 #else
 239 #   define ATTR_ALIGN(align)
 240 #endif
 241
 242 /* libintl support */
 243 #define _(str)            vlc_gettext (str)
 244 #define N_(str)           gettext_noop (str)
 245 #define gettext_noop(str) (str)
 246
 247 #ifndef HAVE_SWAB
 248 void swab (const void *, void *, ssize_t);
 249 #endif
 250
 251 /* Socket stuff */
 252 #ifndef HAVE_INET_PTON
 253 # define inet_pton vlc_inet_pton
 254 #endif
 255
 256 #ifndef HAVE_INET_NTOP
 257 # define inet_ntop vlc_inet_ntop
 258 #endif
 259
 260 #ifndef HAVE_STRUCT_POLLFD
 261 enum
 262 {
 263     POLLIN=1,
 264     POLLOUT=2,
 265     POLLPRI=4,
 266     POLLERR=8,  // unsupported stub
 267     POLLHUP=16, // unsupported stub
 268     POLLNVAL=32 // unsupported stub
 269 };
 270
 271 struct pollfd
 272 {
 273     int fd;
 274     unsigned events;
 275     unsigned revents;
 276 };
 277 #endif
 278 #ifndef HAVE_POLL
 279 # define poll(a, b, c) vlc_poll(a, b, c)
 280 #elif defined (HAVE_MAEMO)
 281 # include <poll.h>
 282 # define poll(a, b, c) vlc_poll(a, b, c)
 283 int vlc_poll (struct pollfd *, unsigned, int);
 284 #endif
 285
 286 #ifndef HAVE_IF_NAMEINDEX
 287 #include <errno.h>
 288 struct if_nameindex
 289 {
 290     unsigned if_index;
 291     char    *if_name;
 292 };
 293 # ifndef HAVE_IF_NAMETOINDEX
 294 #  define if_nametoindex(name)   atoi(name)
 295 # endif
 296 # define if_nameindex()         (errno = ENOBUFS, NULL)
 297 # define if_freenameindex(list) (void)0
 298 #endif
 299
 300 /* search.h */
 301 #ifndef HAVE_SEARCH_H
 302 typedef struct entry {
 303     char *key;
 304     void *data;
 305 } ENTRY;
 306
 307 typedef enum {
 308     FIND, ENTER
 309 } ACTION;
 310
 311 typedef enum {
 312     preorder,
 313     postorder,
 314     endorder,
 315     leaf
 316 } VISIT;
 317
 318 void *tsearch( const void *key, void **rootp, int(*cmp)(const void *, const void *) );
 319 void *tfind( const void *key, const void **rootp, int(*cmp)(const void *, const void *) );
 320 void *tdelete( const void *key, void **rootp, int(*cmp)(const void *, const void *) );
 321 void twalk( const void *root, void(*action)(const void *nodep, VISIT which, int depth) );
 322 void tdestroy( void *root, void (*free_node)(void *nodep) );
 323 #else // HAVE_SEARCH_H
 324 # ifndef HAVE_TDESTROY
 325 #  define tdestroy vlc_tdestroy
 326 # endif
 327 #endif
 328
 329 /* Random numbers */
 330 #ifndef HAVE_NRAND48
 331 double erand48 (unsigned short subi[3]);
 332 long jrand48 (unsigned short subi[3]);
 333 long nrand48 (unsigned short subi[3]);
 334 #endif
 335
 336 #ifdef __ANDROID__
 337 # undef __linux__
 338 # ifndef __cplusplus
 339 #  define __cplusplus 0
 340 # endif
 341 # include <pthread.h>
 342 # if __cplusplus == 0
 343 #  undef __cplusplus
 344 # endif
 345 char *tempnam(const char *, const char *);
 346 #endif // ANDROID
 347
 348 #ifdef __OS2__
 349 # undef HAVE_FORK   /* Implementation of fork() is imperfect on OS/2 */
 350 #endif
 351
 352 #endif /* !LIBVLC_FIXUPS_H */