6 * Copyright (C) 2003 Greg Kroah-Hartman <greg@kroah.com>
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation version 2 of the License.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
17 * You should have received a copy of the GNU General Public License along
18 * with this program; if not, write to the Free Software Foundation, Inc.,
19 * 675 Mass Ave, Cambridge, MA 02139, USA.
28 #include <sysfs/libsysfs.h>
30 #include <sys/param.h>
32 #define COMMENT_CHARACTER '#'
39 #define ACTION_SIZE 30
40 #define DEVPATH_SIZE 255
41 #define SUBSYSTEM_SIZE 30
43 /* length of public data */
44 #define UDEVICE_LEN (offsetof(struct udevice, bus_id))
48 char owner[OWNER_SIZE];
49 char group[GROUP_SIZE];
53 unsigned int mode; /* not mode_t due to conflicting definitions in different libcs */
54 char symlink[NAME_SIZE];
57 /* private data that help us in building strings */
58 char bus_id[SYSFS_NAME_LEN];
59 char program_result[NAME_SIZE];
60 char kernel_number[NAME_SIZE];
61 char kernel_name[NAME_SIZE];
64 #define strfieldcpy(to, from) \
66 to[sizeof(to)-1] = '\0'; \
67 strncpy(to, from, sizeof(to)-1); \
70 #define strfieldcat(to, from) \
72 to[sizeof(to)-1] = '\0'; \
73 strncat(to, from, sizeof(to) - strlen(to)-1); \
76 #define strfieldcpymax(to, from, maxsize) \
78 to[maxsize-1] = '\0'; \
79 strncpy(to, from, maxsize-1); \
82 #define strfieldcatmax(to, from, maxsize) \
84 to[maxsize-1] = '\0'; \
85 strncat(to, from, maxsize - strlen(to)-1); \
88 #define strintcat(to, i) \
90 to[sizeof(to)-1] = '\0'; \
91 snprintf((to) + strlen(to), sizeof(to) - strlen(to)-1, "%u", i); \
94 #define strintcatmax(to, i, maxsize) \
96 to[maxsize-1] = '\0'; \
97 snprintf((to) + strlen(to), maxsize - strlen(to)-1, "%u", i); \
100 #define foreach_strpart(str, separator, pos, len) \
101 for(pos = str, len = 0; \
102 (pos) < ((str) + strlen(str)); \
103 pos = pos + len + strspn(pos, separator), len = strcspn(pos, separator)) \
106 static inline char *get_action(void)
110 action = getenv("ACTION");
111 if (action != NULL && strlen(action) > ACTION_SIZE)
112 action[ACTION_SIZE-1] = '\0';
117 static inline char *get_devpath(void)
121 devpath = getenv("DEVPATH");
122 if (devpath != NULL && strlen(devpath) > DEVPATH_SIZE)
123 devpath[DEVPATH_SIZE-1] = '\0';
128 static inline char *get_seqnum(void)
132 seqnum = getenv("SEQNUM");
137 static inline char *get_subsystem(char *subsystem)
139 if (subsystem != NULL && strlen(subsystem) > SUBSYSTEM_SIZE)
140 subsystem[SUBSYSTEM_SIZE-1] = '\0';
145 extern int udev_add_device(char *path, char *subsystem, int fake);
146 extern int udev_remove_device(char *path, char *subsystem);
147 extern void udev_init_config(void);
148 extern int parse_get_pair(char **orig_string, char **left, char **right);
150 extern char **main_argv;
151 extern char **main_envp;
152 extern char sysfs_path[SYSFS_PATH_MAX];
153 extern char udev_root[PATH_MAX];
154 extern char udev_db_filename[PATH_MAX+NAME_MAX];
155 extern char udev_permissions_filename[PATH_MAX+NAME_MAX];
156 extern char udev_config_filename[PATH_MAX+NAME_MAX];
157 extern char udev_rules_filename[PATH_MAX+NAME_MAX];
158 extern char default_mode_str[MODE_SIZE];
159 extern char default_owner_str[OWNER_SIZE];
160 extern char default_group_str[GROUP_SIZE];
162 extern int udev_sleep;