src/core/sip-prefix.h

   1 /*
   2  * I made the following modifications, be sure to readd these when
   3  * upgrading these files.
   4  *
   5  * Added this comment.
   6  * Added "gaim_ ## " to the namespace
   7  * Changed the lib macro to use /lib/gaim instead of just /lib
   8  *  (why does gaim do that in the -DLIBDIR autoconf thing anyway?)
   9  *
  10  */
  11
  12 /*
  13  * BinReloc - a library for creating relocatable executables
  14  * Written by: Mike Hearn <mike@theoretic.com>
  15  *             Hongli Lai <h.lai@chello.nl>
  16  * http://autopackage.org/
  17  *
  18  * This source code is public domain. You can relicense this code
  19  * under whatever license you want.
  20  *
  21  * See http://autopackage.org/docs/binreloc/ for
  22  * more information and how to use this.
  23  *
  24  * NOTE: if you're using C++ and are getting "undefined reference
  25  * to br_*", try renaming prefix.c to prefix.cpp
  26  */
  27
  28 #ifndef _PREFIX_H_
  29 #define _PREFIX_H_
  30
  31 #ifdef __cplusplus
  32 extern "C" {
  33 #endif /* __cplusplus */
  34
  35 /* WARNING, BEFORE YOU MODIFY PREFIX.C:
  36  *
  37  * If you make changes to any of the functions in prefix.c, you MUST
  38  * change the BR_NAMESPACE macro.
  39  * This way you can avoid symbol table conflicts with other libraries
  40  * that also happen to use BinReloc.
  41  *
  42  * Example:
  43  * #define BR_NAMESPACE(funcName) foobar_ ## funcName
  44  * --> expands br_locate to foobar_br_locate
  45  */
  46 #undef BR_NAMESPACE
  47 #define BR_NAMESPACE(funcName) gaim_ ## funcName
  48
  49
  50 #ifdef ENABLE_BINRELOC
  51
  52 #define br_thread_local_store BR_NAMESPACE(br_thread_local_store)
  53 #define br_locate BR_NAMESPACE(br_locate)
  54 #define br_locate_prefix BR_NAMESPACE(br_locate_prefix)
  55 #define br_prepend_prefix BR_NAMESPACE(br_prepend_prefix)
  56
  57 #ifndef BR_NO_MACROS
  58         /* These are convenience macros that replace the ones usually used
  59            in Autoconf/Automake projects */
  60         #undef SELFPATH
  61         #undef PREFIX
  62         #undef PREFIXDIR
  63         #undef BINDIR
  64         #undef SBINDIR
  65         #undef DATADIR
  66         #undef LIBDIR
  67         #undef LIBEXECDIR
  68         #undef ETCDIR
  69         #undef SYSCONFDIR
  70         #undef CONFDIR
  71         #undef LOCALEDIR
  72
  73         #define SELFPATH        (br_thread_local_store (br_locate ((void *) "")))
  74         #define PREFIX          (br_thread_local_store (br_locate_prefix ((void *) "")))
  75         #define PREFIXDIR       (br_thread_local_store (br_locate_prefix ((void *) "")))
  76         #define BINDIR          (br_thread_local_store (br_prepend_prefix ((void *) "", "/bin")))
  77         #define SBINDIR         (br_thread_local_store (br_prepend_prefix ((void *) "", "/sbin")))
  78         #define DATADIR         (br_thread_local_store (br_prepend_prefix ((void *) "", "/share")))
  79         #define LIBDIR          (br_thread_local_store (br_prepend_prefix ((void *) "", "/lib/gaim")))
  80         #define LIBEXECDIR      (br_thread_local_store (br_prepend_prefix ((void *) "", "/libexec")))
  81         #define ETCDIR          (br_thread_local_store (br_prepend_prefix ((void *) "", "/etc")))
  82         #define SYSCONFDIR      (br_thread_local_store (br_prepend_prefix ((void *) "", "/etc")))
  83         #define CONFDIR         (br_thread_local_store (br_prepend_prefix ((void *) "", "/etc")))
  84         #define LOCALEDIR       (br_thread_local_store (br_prepend_prefix ((void *) "", "/share/locale")))
  85 #endif /* BR_NO_MACROS */
  86
  87
  88 /* The following functions are used internally by BinReloc
  89    and shouldn't be used directly in applications. */
  90
  91 char *br_locate         (void *symbol);
  92 char *br_locate_prefix  (void *symbol);
  93 char *br_prepend_prefix (void *symbol, char *path);
  94
  95 #endif /* ENABLE_BINRELOC */
  96
  97 const char *br_thread_local_store (char *str);
  98
  99
 100 /* These macros and functions are not guarded by the ENABLE_BINRELOC
 101  * macro because they are portable. You can use these functions.
 102  */
 103
 104 #define br_strcat BR_NAMESPACE(br_strcat)
 105 #define br_extract_dir BR_NAMESPACE(br_extract_dir)
 106 #define br_extract_prefix BR_NAMESPACE(br_extract_prefix)
 107 #define br_set_locate_fallback_func BR_NAMESPACE(br_set_locate_fallback_func)
 108
 109 #ifndef BR_NO_MACROS
 110         /* Convenience functions for concatenating paths */
 111
 112         /* Each time you call one, the previous result will be freed. So don't do this:
 113          *
 114          *   some_function( BR_DATADIR("/one"), BR_DATADIR("/two") )
 115          *
 116          * as the first parameter will now be bogus!
 117          */
 118
 119         #define BR_SELFPATH(suffix)     (br_thread_local_store (br_strcat (SELFPATH, suffix)))
 120         #define BR_PREFIX(suffix)       (br_thread_local_store (br_strcat (PREFIX, suffix)))
 121         #define BR_PREFIXDIR(suffix)    (br_thread_local_store (br_strcat (BR_PREFIX, suffix)))
 122         #define BR_BINDIR(suffix)       (br_thread_local_store (br_strcat (BINDIR, suffix)))
 123         #define BR_SBINDIR(suffix)      (br_thread_local_store (br_strcat (SBINDIR, suffix)))
 124         #define BR_DATADIR(suffix)      (br_thread_local_store (br_strcat (DATADIR, suffix)))
 125         #define BR_LIBDIR(suffix)       (br_thread_local_store (br_strcat (LIBDIR, suffix)))
 126         #define BR_LIBEXECDIR(suffix)   (br_thread_local_store (br_strcat (LIBEXECDIR, suffix)))
 127         #define BR_ETCDIR(suffix)       (br_thread_local_store (br_strcat (ETCDIR, suffix)))
 128         #define BR_SYSCONFDIR(suffix)   (br_thread_local_store (br_strcat (SYSCONFDIR, suffix)))
 129         #define BR_CONFDIR(suffix)      (br_thread_local_store (br_strcat (CONFDIR, suffix)))
 130         #define BR_LOCALEDIR(suffix)    (br_thread_local_store (br_strcat (LOCALEDIR, suffix)))
 131 #endif
 132
 133 char *br_strcat (const char *str1, const char *str2);
 134 char *br_extract_dir    (const char *path);
 135 char *br_extract_prefix(const char *path);
 136 typedef char *(*br_locate_fallback_func) (void *symbol, void *data);
 137 void br_set_locate_fallback_func (br_locate_fallback_func func, void *data);
 138
 139
 140 #ifdef __cplusplus
 141 }
 142 #endif /* __cplusplus */
 143
 144 #endif /* _PREFIX_H_ */