3 * Netatalk utility functions
5 * Utility functions for these areas: \n
8 * * misc UNIX function wrappers, eg for getcwd
12 #define _ATALK_UTIL_H 1
14 #include <sys/types.h>
15 #include <sys/socket.h>
20 #include <atalk/unicode.h>
21 #include <atalk/bstrlib.h>
22 #include <atalk/cnid.h>
24 /* exit error codes */
25 #define EXITERR_CLNT 1 /* client related error */
26 #define EXITERR_CONF 2 /* error in config files/cmd line parameters */
27 #define EXITERR_SYS 3 /* local system error */
29 /* Print a SBT and exit */
30 #define AFP_PANIC(why) \
32 netatalk_panic(why); \
36 /* LOG assert errors */
38 #define AFP_ASSERT(b) \
49 #define MIN(a, b) ((a) < (b) ? (a) : (b))
53 #define MAX(a, b) ((a) > (b) ? (a) : (b))
56 #define STRCMP(a,b,c) (strcmp(a,c) b 0)
57 #define ZERO_STRUCT(a) memset(&(a), 0, sizeof(a))
58 #define ZERO_STRUCTP(a) memset((a), 0, sizeof(a))
60 #define MAX(a,b) ((a) > (b) ? a : b)
63 #define MIN(a,b) ((a) < (b) ? a : b)
66 #ifdef WORDS_BIGENDIAN
70 #define hton64(x) ((uint64_t) (htonl(((x) >> 32) & 0xffffffffLL)) | \
71 (uint64_t) ((htonl(x) & 0xffffffffLL) << 32))
72 #define ntoh64(x) (hton64(x))
76 extern ssize_t sys_sendfile (int __out_fd, int __in_fd, off_t *__offset,size_t __count);
79 extern const int _diacasemap[], _dialowermap[];
81 extern char **getifacelist(void);
82 extern void freeifacelist(char **);
84 #define diatolower(x) _dialowermap[(unsigned char) (x)]
85 #define diatoupper(x) _diacasemap[(unsigned char) (x)]
86 extern void bprint (char *, int);
87 extern int strdiacasecmp (const char *, const char *);
88 extern int strndiacasecmp (const char *, const char *, size_t);
89 extern pid_t server_lock (char * /*program*/, char * /*file*/, int /*debug*/);
90 extern int check_lockfile (const char *program, const char *pidfile);
91 extern int create_lockfile(const char *program, const char *pidfile);
92 extern void fault_setup (void (*fn)(void *));
93 extern void netatalk_panic(const char *why);
94 #define server_unlock(x) (unlink(x))
97 extern void *mod_open (const char *);
98 extern void *mod_symbol (void *, const char *);
99 extern void mod_close (void *);
100 #define mod_error() ""
101 #else /* ! HAVE_DLFCN_H */
106 #endif /* ! RTLD_NOW */
108 /* NetBSD doesn't like RTLD_NOW for dlopen (it fails). Use RTLD_LAZY.
109 * OpenBSD currently does not use the second arg for dlopen(). For
110 * future compatibility we define DL_LAZY */
112 #define mod_open(a) dlopen(a, RTLD_LAZY)
113 #elif defined(__OpenBSD__)
114 #define mod_open(a) dlopen(a, DL_LAZY)
115 #else /* ! __NetBSD__ && ! __OpenBSD__ */
116 #define mod_open(a) dlopen(a, RTLD_NOW)
117 #endif /* __NetBSD__ */
119 #ifndef DLSYM_PREPEND_UNDERSCORE
120 #define mod_symbol(a, b) dlsym(a, b)
121 #else /* ! DLSYM_PREPEND_UNDERSCORE */
122 extern void *mod_symbol (void *, const char *);
123 #endif /* ! DLSYM_PREPEND_UNDERSCORE */
124 #define mod_error() dlerror()
125 #define mod_close(a) dlclose(a)
126 #endif /* ! HAVE_DLFCN_H */
128 /******************************************************************
130 ******************************************************************/
132 extern int lock_reg(int fd, int cmd, int type, off_t offest, int whence, off_t len);
133 #define read_lock(fd, offset, whence, len) \
134 lock_reg((fd), F_SETLK, F_RDLCK, (offset), (whence), (len))
135 #define write_lock(fd, offset, whence, len) \
136 lock_reg((fd), F_SETLK, F_WRLCK, (offset), (whence), (len))
137 #define unlock(fd, offset, whence, len) \
138 lock_reg((fd), F_SETLK, F_UNLCK, (offset), (whence), (len))
140 /******************************************************************
142 ******************************************************************/
144 extern int setnonblock(int fd, int cmd);
145 extern ssize_t readt(int socket, void *data, const size_t length, int setnonblocking, int timeout);
146 extern ssize_t writet(int socket, void *data, const size_t length, int setnonblocking, int timeout);
147 extern const char *getip_string(const struct sockaddr *sa);
148 extern unsigned int getip_port(const struct sockaddr *sa);
149 extern void apply_ip_mask(struct sockaddr *ai, int maskbits);
150 extern int compare_ip(const struct sockaddr *sa1, const struct sockaddr *sa2);
152 /* Structures and functions dealing with dynamic pollfd arrays */
153 enum fdtype {IPC_FD, LISTEN_FD};
155 enum fdtype fdtype; /* IPC fd or listening socket fd */
156 void *data; /* pointer to AFPconfig for listening socket and *
157 * pointer to afp_child_t for IPC fd */
160 extern void fdset_add_fd(int maxconns,
161 struct pollfd **fdsetp,
162 struct polldata **polldatap,
168 extern void fdset_del_fd(struct pollfd **fdsetp,
169 struct polldata **polldatap,
173 extern int send_fd(int socket, int fd);
174 extern int recv_fd(int fd, int nonblocking);
176 /******************************************************************
178 *****************************************************************/
180 extern const char *getcwdpath(void);
181 extern const char *fullpathname(const char *);
182 extern char *stripped_slashes_basename(char *p);
183 extern void randombytes(void *buf, int n);
184 extern int daemonize(int nochdir, int noclose);
185 extern int run_cmd(const char *cmd, char **cmd_argv);
186 extern char *realpath_safe(const char *path);
187 extern const char *basename_safe(const char *path);
188 extern char *strtok_quote (char *s, const char *delim);
190 extern int ochdir(const char *dir, int options);
191 extern int ostat(const char *path, struct stat *buf, int options);
192 extern int ostatat(int dirfd, const char *path, struct stat *st, int options);
193 extern int ochown(const char *path, uid_t owner, gid_t group, int options);
194 extern int ochmod(char *path, mode_t mode, const struct stat *st, int options);
196 /******************************************************************
198 *****************************************************************/
200 extern bstring rel_path_in_vol(const char *path, const char *volpath);
201 extern cnid_t cnid_for_path(struct _cnid_db *cdb, const char *volpath, const char *path, cnid_t *did);
203 /******************************************************************
205 *****************************************************************/
207 extern void initline (int, char *);
208 extern int parseline (int, char *);
210 #endif /* _ATALK_UTIL_H */