2 * Configuration parameters shared between Wine server and clients
4 * Copyright 2002 Alexandre Julliard
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library 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 GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
22 #include "wine/port.h"
36 #include "wine/library.h"
38 static const char server_config_dir[] = "/.wine"; /* config dir relative to $HOME */
39 static const char server_root_prefix[] = "/tmp/.wine-"; /* prefix for server root dir */
40 static const char server_dir_prefix[] = "/server-"; /* prefix for server dir */
45 static char *config_dir;
46 static char *server_dir;
47 static char *build_dir;
48 static char *user_name;
49 static char *argv0_name;
52 static void fatal_error( const char *err, ... ) __attribute__((noreturn,format(printf,1,2)));
53 static void fatal_perror( const char *err, ... ) __attribute__((noreturn,format(printf,1,2)));
56 /* die on a fatal error */
57 static void fatal_error( const char *err, ... )
61 va_start( args, err );
62 fprintf( stderr, "wine: " );
63 vfprintf( stderr, err, args );
68 /* die on a fatal error */
69 static void fatal_perror( const char *err, ... )
73 va_start( args, err );
74 fprintf( stderr, "wine: " );
75 vfprintf( stderr, err, args );
82 static void *xmalloc( size_t size )
87 if (!(res = malloc( size ))) fatal_error( "virtual memory exhausted\n");
92 static char *xstrdup( const char *str )
94 size_t len = strlen(str) + 1;
95 char *res = xmalloc( len );
96 memcpy( res, str, len );
100 /* remove all trailing slashes from a path name */
101 inline static void remove_trailing_slashes( char *path )
103 int len = strlen( path );
104 while (len > 1 && path[len-1] == '/') path[--len] = 0;
107 /* build a path from the specified dir and name */
108 static char *build_path( const char *dir, const char *name )
110 size_t len = strlen(dir);
111 char *ret = xmalloc( len + strlen(name) + 2 );
113 memcpy( ret, dir, len );
114 if (len && ret[len-1] != '/') ret[len++] = '/';
115 strcpy( ret + len, name );
119 /* return the directory that contains the library at run-time */
120 static char *get_runtime_libdir(void)
126 if (dladdr( get_runtime_libdir, &info ) && info.dli_fname[0] == '/')
128 const char *p = strrchr( info.dli_fname, '/' );
129 unsigned int len = p - info.dli_fname;
130 if (!len) len++; /* include initial slash */
131 libdir = xmalloc( len + 1 );
132 memcpy( libdir, info.dli_fname, len );
136 #endif /* HAVE_DLADDR */
140 /* initialize the server directory value */
141 static void init_server_dir( dev_t dev, ino_t ino )
145 const unsigned int uid = getuid();
147 const unsigned int uid = 0;
150 server_dir = xmalloc( sizeof(server_root_prefix) + 32 + sizeof(server_dir_prefix) +
151 2*sizeof(dev) + 2*sizeof(ino) );
152 sprintf( server_dir, "%s%u%s", server_root_prefix, uid, server_dir_prefix );
153 p = server_dir + strlen(server_dir);
155 if (sizeof(dev) > sizeof(unsigned long) && dev > ~0UL)
156 p += sprintf( p, "%lx%08lx-", (unsigned long)((unsigned long long)dev >> 32), (unsigned long)dev );
158 p += sprintf( p, "%lx-", (unsigned long)dev );
160 if (sizeof(ino) > sizeof(unsigned long) && ino > ~0UL)
161 sprintf( p, "%lx%08lx", (unsigned long)((unsigned long long)ino >> 32), (unsigned long)ino );
163 sprintf( p, "%lx", (unsigned long)ino );
166 /* retrieve the default dll dir */
167 const char *get_dlldir( const char **default_dlldir )
169 *default_dlldir = DLLDIR;
173 /* initialize all the paths values */
174 static void init_paths(void)
178 const char *home = getenv( "HOME" );
179 const char *user = NULL;
180 const char *prefix = getenv( "WINEPREFIX" );
184 struct passwd *pwd = getpwuid( getuid() );
189 if (!home) home = pwd->pw_dir;
193 sprintf( uid_str, "%lu", (unsigned long)getuid() );
196 #else /* HAVE_GETPWUID */
197 if (!(user = getenv( "USER" )))
198 fatal_error( "cannot determine your user name, set the USER environment variable\n" );
199 #endif /* HAVE_GETPWUID */
200 user_name = xstrdup( user );
202 /* build config_dir */
206 if (!(config_dir = strdup( prefix ))) fatal_error( "virtual memory exhausted\n");
207 remove_trailing_slashes( config_dir );
208 if (config_dir[0] != '/')
209 fatal_error( "invalid directory %s in WINEPREFIX: not an absolute path\n", prefix );
210 if (stat( config_dir, &st ) == -1)
213 fatal_perror( "cannot open %s as specified in WINEPREFIX", config_dir );
214 fatal_error( "the '%s' directory specified in WINEPREFIX doesn't exist.\n"
215 "You may want to create it by running 'wineprefixcreate'.\n", config_dir );
220 if (!home) fatal_error( "could not determine your home directory\n" );
221 if (home[0] != '/') fatal_error( "your home directory %s is not an absolute path\n", home );
222 config_dir = xmalloc( strlen(home) + sizeof(server_config_dir) );
223 strcpy( config_dir, home );
224 remove_trailing_slashes( config_dir );
225 strcat( config_dir, server_config_dir );
226 if (stat( config_dir, &st ) == -1)
228 if (errno == ENOENT) return; /* will be created later on */
229 fatal_perror( "cannot open %s", config_dir );
232 if (!S_ISDIR(st.st_mode)) fatal_error( "%s is not a directory\n", config_dir );
234 init_server_dir( st.st_dev, st.st_ino );
237 /* check if basedir is a valid build dir by checking for wineserver and ntdll */
238 /* helper for running_from_build_dir */
239 static inline int is_valid_build_dir( char *basedir, int baselen )
243 strcpy( basedir + baselen, "/server/wineserver" );
244 if (stat( basedir, &st ) == -1) return 0; /* no wineserver found */
245 /* check for ntdll too to make sure */
246 strcpy( basedir + baselen, "/dlls/ntdll/ntdll.dll.so" );
247 if (stat( basedir, &st ) == -1) return 0; /* no ntdll found */
249 basedir[baselen] = 0;
253 /* check if we are running from the build directory */
254 static char *running_from_build_dir( const char *basedir, const char *bindir )
261 if (!(path = build_path( bindir, "wineserver" ))) return NULL;
262 res = stat( path, &st );
264 if (res != -1) return NULL; /* the real bindir is valid */
266 /* remove last component from basedir */
267 p = basedir + strlen(basedir) - 1;
268 while (p > basedir && *p == '/') p--;
269 while (p > basedir && *p != '/') p--;
270 if (p == basedir) return NULL;
271 path = xmalloc( p - basedir + sizeof("/dlls/ntdll/ntdll.dll.so") );
272 memcpy( path, basedir, p - basedir );
274 if (!is_valid_build_dir( path, p - basedir ))
276 /* remove another component */
277 while (p > basedir && *p == '/') p--;
278 while (p > basedir && *p != '/') p--;
279 if (p == basedir || !is_valid_build_dir( path, p - basedir ))
288 /* initialize the argv0 path */
289 void wine_init_argv0_path( const char *argv0 )
292 const char *p, *basename;
295 if (!(p = strrchr( argv0, '/' )))
300 argv0_name = xstrdup( basename );
302 if ((libdir = get_runtime_libdir()))
304 bindir = build_path( libdir, LIB_TO_BINDIR );
305 if ((build_dir = running_from_build_dir( libdir, bindir )))
310 dlldir = build_path( libdir, LIB_TO_DLLDIR );
311 datadir = build_path( libdir, LIB_TO_DATADIR );
316 if (!p) return; /* if argv0 doesn't contain a path, don't store anything */
319 if (!len) len++; /* include leading slash */
321 if (argv0[0] == '/') /* absolute path */
323 bindir = xmalloc( len + 1 );
324 memcpy( bindir, argv0, len );
329 /* relative path, make it absolute */
330 for (size = 256 + len; ; size *= 2)
332 if (!(cwd = malloc( size ))) return;
333 if (getcwd( cwd, size - len ))
338 memcpy( cwd, argv0, len );
343 if (errno != ERANGE) return;
347 if ((build_dir = running_from_build_dir( bindir, bindir ))) goto in_build_dir;
349 dlldir = build_path( bindir, BIN_TO_DLLDIR );
350 datadir = build_path( bindir, BIN_TO_DATADIR );
357 argv0_name = build_path( "loader/", basename );
360 /* return the configuration directory ($WINEPREFIX or $HOME/.wine) */
361 const char *wine_get_config_dir(void)
363 if (!config_dir) init_paths();
367 /* retrieve the wine data dir */
368 const char *wine_get_data_dir(void)
373 /* retrieve the wine build dir (if we are running from there) */
374 const char *wine_get_build_dir(void)
379 /* return the full name of the server directory (the one containing the socket) */
380 const char *wine_get_server_dir(void)
384 if (!config_dir) init_paths();
389 if (stat( config_dir, &st ) == -1)
391 if (errno != ENOENT) fatal_error( "cannot stat %s\n", config_dir );
392 return NULL; /* will have to try again once config_dir has been created */
394 init_server_dir( st.st_dev, st.st_ino );
400 /* return the current user name */
401 const char *wine_get_user_name(void)
403 if (!user_name) init_paths();
407 /* exec a binary using the preloader if requested; helper for wine_exec_wine_binary */
408 static void preloader_exec( char **argv, int use_preloader )
413 static const char preloader[] = "wine-preloader";
415 char **last_arg = argv, **new_argv;
417 if (!(p = strrchr( argv[0], '/' ))) p = argv[0];
420 full_name = xmalloc( p - argv[0] + sizeof(preloader) );
421 memcpy( full_name, argv[0], p - argv[0] );
422 memcpy( full_name + (p - argv[0]), preloader, sizeof(preloader) );
424 /* make a copy of argv */
425 while (*last_arg) last_arg++;
426 new_argv = xmalloc( (last_arg - argv + 2) * sizeof(*argv) );
427 memcpy( new_argv + 1, argv, (last_arg - argv + 1) * sizeof(*argv) );
428 new_argv[0] = full_name;
429 execv( full_name, new_argv );
435 execv( argv[0], argv );
438 /* exec a wine internal binary (either the wine loader or the wine server) */
439 void wine_exec_wine_binary( const char *name, char **argv, const char *env_var )
441 const char *path, *pos, *ptr;
442 int use_preloader = 0;
444 if (!name) /* no name means default loader */
450 if ((ptr = strrchr( name, '/' )))
452 /* if we are in build dir and name contains a path, try that */
455 argv[0] = build_path( build_dir, name );
456 preloader_exec( argv, use_preloader );
459 name = ptr + 1; /* get rid of path */
462 /* first, bin directory from the current libdir or argv0 */
465 argv[0] = build_path( bindir, name );
466 preloader_exec( argv, use_preloader );
470 /* then specified environment variable */
473 argv[0] = (char *)env_var;
474 preloader_exec( argv, use_preloader );
477 /* now search in the Unix path */
478 if ((path = getenv( "PATH" )))
480 argv[0] = xmalloc( strlen(path) + strlen(name) + 2 );
484 while (*pos == ':') pos++;
486 if (!(ptr = strchr( pos, ':' ))) ptr = pos + strlen(pos);
487 memcpy( argv[0], pos, ptr - pos );
488 strcpy( argv[0] + (ptr - pos), "/" );
489 strcat( argv[0] + (ptr - pos), name );
490 preloader_exec( argv, use_preloader );
496 /* and finally try BINDIR */
497 argv[0] = build_path( BINDIR, name );
498 preloader_exec( argv, use_preloader );