2 * udev_libc_wrapper - wrapping of functions missing in a specific libc
3 * or not working in a statically compiled binary
5 * Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org>
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the
9 * Free Software Foundation version 2 of the License.
11 * This program is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * General Public License for more details.
16 * You should have received a copy of the GNU General Public License along
17 * with this program; if not, write to the Free Software Foundation, Inc.,
18 * 675 Mass Ave, Cambridge, MA 02139, USA.
22 #ifndef _UDEV_LIBC_WRAPPER_H_
23 #define _UDEV_LIBC_WRAPPER_H_
29 /* needed until Inotify! syscalls reach glibc */
30 #include <sys/syscall.h>
31 #ifndef __NR_inotify_init
33 # define __NR_inotify_init 291
34 # define __NR_inotify_add_watch 292
35 # define __NR_inotify_rm_watch 293
36 #elif defined(__x86_64__)
37 # define __NR_inotify_init 253
38 # define __NR_inotify_add_watch 254
39 # define __NR_inotify_rm_watch 255
40 #elif defined(__powerpc__) || defined(__powerpc64__)
41 # define __NR_inotify_init 275
42 # define __NR_inotify_add_watch 276
43 # define __NR_inotify_rm_watch 277
44 #elif defined (__ia64__)
45 # define __NR_inotify_init 1277
46 # define __NR_inotify_add_watch 1278
47 # define __NR_inotify_rm_watch 1279
48 #elif defined (__s390__)
49 # define __NR_inotify_init 284
50 # define __NR_inotify_add_watch 285
51 # define __NR_inotify_rm_watch 286
52 #elif defined (__alpha__)
53 # define __NR_inotify_init 444
54 # define __NR_inotify_add_watch 445
55 # define __NR_inotify_rm_watch 446
56 #elif defined (__sparc__) || defined (__sparc64__)
57 # define __NR_inotify_init 151
58 # define __NR_inotify_add_watch 152
59 # define __NR_inotify_rm_watch 156
60 #elif defined (__arm__)
61 # define __NR_inotify_init 316
62 # define __NR_inotify_add_watch 317
63 # define __NR_inotify_rm_watch 318
64 #elif defined (__sh__)
65 # define __NR_inotify_init 290
66 # define __NR_inotify_add_watch 291
67 # define __NR_inotify_rm_watch 292
69 # error "Unsupported architecture!"
71 #endif /* __NR_inotify_init */
73 /* needed until /usr/include/sys/inotify.h is working */
75 #include <sys/inotify.h>
77 static inline int inotify_init(void)
79 return syscall(__NR_inotify_init);
82 static inline int inotify_add_watch(int fd, const char *name, uint32_t mask)
84 return syscall(__NR_inotify_add_watch, fd, name, mask);
86 #define IN_CREATE 0x00000100 /* Subfile was created */
87 #define IN_MOVED_FROM 0x00000040 /* File was moved from X */
88 #define IN_MOVED_TO 0x00000080 /* File was moved to Y */
89 #define IN_DELETE 0x00000200 /* Subfile was deleted */
90 #define IN_CLOSE_WRITE 0x00000008 /* Writtable file was closed */
91 #define IN_MOVE (IN_MOVED_FROM | IN_MOVED_TO) /* moves */
92 #endif /* __KLIBC__ */
94 /* needed for our signal handlers to work */
97 #define asmlinkage __attribute__((regparm(0)))
100 #endif /* __i386__ */
102 /* headers are broken on some lazy platforms */
104 #define __FD_SET(d, set) ((set)->fds_bits[__FDELT(d)] |= __FDMASK(d))
107 #define __FD_CLR(d, set) ((set)->fds_bits[__FDELT(d)] &= ~__FDMASK(d))
110 #define __FD_ISSET(d, set) (((set)->fds_bits[__FDELT(d)] & __FDMASK(d)) != 0)
113 #define __FD_ZERO(set) ((void) memset ((void*) (set), 0, sizeof (fd_set)))
116 /* missing in some lazy distros */
117 #ifndef NETLINK_KOBJECT_UEVENT
118 #define NETLINK_KOBJECT_UEVENT 15
121 #ifndef SO_RCVBUFFORCE
122 #define SO_RCVBUFFORCE 33
126 static inline int clearenv(void)
133 extern uid_t lookup_user(const char *user);
134 extern gid_t lookup_group(const char *group);
136 extern size_t strlcpy(char *dst, const char *src, size_t size);
137 extern size_t strlcat(char *dst, const char *src, size_t size);
139 #endif /* _UDEV_LIBC_WRAPPER_H_ */