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     !defined (HAVE_GETCWD)
  55 # include <stddef.h> /* size_t */
  56 #endif
  57
  58 #ifndef HAVE_VASPRINTF
  59 # include <stdarg.h> /* va_list */
  60 #endif
  61
  62 #if !defined (HAVE_GETDELIM) || \
  63     !defined (HAVE_GETPID)   || \
  64     !defined (HAVE_SWAB)
  65 # include <sys/types.h> /* ssize_t, pid_t */
  66 #endif
  67
  68 #ifndef HAVE_DIRFD
  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_GETCWD
 177 char *getcwd (char *buf, size_t size);
 178 #endif
 179
 180 #ifndef HAVE_GETPID
 181 pid_t getpid (void);
 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 #ifdef __cplusplus
 193 } /* extern "C" */
 194 #endif
 195
 196 /* stdlib.h */
 197 #ifndef HAVE_GETENV
 198 static inline char *getenv (const char *name)
 199 {
 200     (void)name;
 201     return NULL;
 202 }
 203 #endif
 204
 205 #ifndef HAVE_SETENV
 206 int setenv (const char *, const char *, int);
 207 int unsetenv (const char *);
 208 #endif
 209
 210 /* locale.h */
 211 #ifndef HAVE_USELOCALE
 212 #define LC_NUMERIC_MASK  0
 213 #define LC_MESSAGES_MASK 0
 214 typedef void *locale_t;
 215 static inline locale_t uselocale(locale_t loc)
 216 {
 217     (void)loc;
 218     return NULL;
 219 }
 220 static inline void freelocale(locale_t loc)
 221 {
 222     (void)loc;
 223 }
 224 static inline locale_t newlocale(int mask, const char * locale, locale_t base)
 225 {
 226     (void)mask; (void)locale; (void)base;
 227     return NULL;
 228 }
 229 #endif
 230
 231 /* Alignment of critical static data structures */
 232 #ifdef ATTRIBUTE_ALIGNED_MAX
 233 #   define ATTR_ALIGN(align) __attribute__ ((__aligned__ ((ATTRIBUTE_ALIGNED_MAX < align) ? ATTRIBUTE_ALIGNED_MAX : align)))
 234 #else
 235 #   define ATTR_ALIGN(align)
 236 #endif
 237
 238 /* libintl support */
 239 #define _(str)            vlc_gettext (str)
 240 #define N_(str)           gettext_noop (str)
 241 #define gettext_noop(str) (str)
 242
 243 #ifndef HAVE_SWAB
 244 void swab (const void *, void *, ssize_t);
 245 #endif
 246
 247 /* Socket stuff */
 248 #ifndef HAVE_INET_PTON
 249 # define inet_pton vlc_inet_pton
 250 #endif
 251
 252 #ifndef HAVE_INET_NTOP
 253 # define inet_ntop vlc_inet_ntop
 254 #endif
 255
 256 #ifndef HAVE_POLL
 257 enum
 258 {
 259     POLLIN=1,
 260     POLLOUT=2,
 261     POLLPRI=4,
 262     POLLERR=8,  // unsupported stub
 263     POLLHUP=16, // unsupported stub
 264     POLLNVAL=32 // unsupported stub
 265 };
 266
 267 struct pollfd
 268 {
 269     int fd;
 270     unsigned events;
 271     unsigned revents;
 272 };
 273
 274 # define poll(a, b, c) vlc_poll(a, b, c)
 275 #elif defined (HAVE_MAEMO)
 276 # include <poll.h>
 277 # define poll(a, b, c) vlc_poll(a, b, c)
 278 int vlc_poll (struct pollfd *, unsigned, int);
 279 #endif
 280
 281 /* search.h */
 282 #ifndef HAVE_SEARCH_H
 283 typedef struct entry {
 284     char *key;
 285     void *data;
 286 } ENTRY;
 287
 288 typedef enum {
 289     FIND, ENTER
 290 } ACTION;
 291
 292 typedef enum {
 293     preorder,
 294     postorder,
 295     endorder,
 296     leaf
 297 } VISIT;
 298
 299 void *tsearch( const void *key, void **rootp, int(*cmp)(const void *, const void *) );
 300 void *tfind( const void *key, const void **rootp, int(*cmp)(const void *, const void *) );
 301 void *tdelete( const void *key, void **rootp, int(*cmp)(const void *, const void *) );
 302 void twalk( const void *root, void(*action)(const void *nodep, VISIT which, int depth) );
 303 void tdestroy( void *root, void (*free_node)(void *nodep) );
 304 #else // HAVE_SEARCH_H
 305 # ifndef HAVE_TDESTROY
 306 #  define tdestroy vlc_tdestroy
 307 # endif
 308 #endif
 309
 310 /* Random numbers */
 311 #ifndef HAVE_NRAND48
 312 double erand48 (unsigned short subi[3]);
 313 long jrand48 (unsigned short subi[3]);
 314 long nrand48 (unsigned short subi[3]);
 315 #endif
 316
 317 #ifdef __ANDROID__
 318 # undef __linux__
 319 # ifndef __cplusplus
 320 #  define __cplusplus 0
 321 # endif
 322 # include <pthread.h>
 323 # if __cplusplus == 0
 324 #  undef __cplusplus
 325 # endif
 326 char *tempnam(const char *, const char *);
 327 #endif // ANDROID
 328
 329 #ifdef __OS2__
 330 # undef HAVE_FORK   /* Implementation of fork() is imperfect on OS/2 */
 331 #endif
 332
 333 #endif /* !LIBVLC_FIXUPS_H */