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/cdefs.h>
15 #include <sys/types.h>
18 #endif /* HAVE_UNISTD_H */
20 #include <netatalk/at.h>
22 #include <atalk/unicode.h>
23 #include <atalk/bstrlib.h>
25 /* exit error codes */
26 #define EXITERR_CLNT 1 /* client related error */
27 #define EXITERR_CONF 2 /* error in config files/cmd line parameters */
28 #define EXITERR_SYS 3 /* local system error */
30 /* Print a SBT and exit */
31 #define AFP_PANIC(why) \
33 netatalk_panic(why); \
37 /* LOG assert errors */
39 #define AFP_ASSERT(b) \
49 #define STRCMP(a,b,c) (strcmp(a,c) b 0)
51 #define MAX(a,b) ((a) > (b) ? a : b)
54 #define MIN(a,b) ((a) < (b) ? a : b)
57 #if BYTE_ORDER == BIG_ENDIAN
60 #else /* BYTE_ORDER == BIG_ENDIAN */
61 #define hton64(x) ((uint64_t) (htonl(((x) >> 32) & 0xffffffffLL)) | \
62 (uint64_t) ((htonl(x) & 0xffffffffLL) << 32))
63 #define ntoh64(x) (hton64(x))
64 #endif /* BYTE_ORDER == BIG_ENDIAN */
67 extern ssize_t sys_sendfile (int __out_fd, int __in_fd, off_t *__offset,size_t __count);
70 extern const int _diacasemap[], _dialowermap[];
72 extern char **getifacelist(void);
73 extern void freeifacelist(char **);
75 #define diatolower(x) _dialowermap[(unsigned char) (x)]
76 #define diatoupper(x) _diacasemap[(unsigned char) (x)]
78 extern int atalk_aton (char *, struct at_addr *);
80 extern void bprint (char *, int);
81 extern int strdiacasecmp (const char *, const char *);
82 extern int strndiacasecmp (const char *, const char *, size_t);
83 extern pid_t server_lock (char * /*program*/, char * /*file*/, int /*debug*/);
84 extern int check_lockfile (const char *program, const char *pidfile);
85 extern int create_lockfile(const char *program, const char *pidfile);
86 extern void fault_setup (void (*fn)(void *));
87 extern void netatalk_panic(const char *why);
88 #define server_unlock(x) (unlink(x))
90 /* strlcpy and strlcat are used by pam modules */
91 #ifndef UAM_MODULE_EXPORT
92 #define UAM_MODULE_EXPORT
96 UAM_MODULE_EXPORT size_t strlcpy (char *, const char *, size_t);
100 UAM_MODULE_EXPORT size_t strlcat (char *, const char *, size_t);
104 extern void *mod_open (const char *);
105 extern void *mod_symbol (void *, const char *);
106 extern void mod_close (void *);
107 #define mod_error() ""
108 #else /* ! HAVE_DLFCN_H */
113 #endif /* ! RTLD_NOW */
115 /* NetBSD doesn't like RTLD_NOW for dlopen (it fails). Use RTLD_LAZY.
116 * OpenBSD currently does not use the second arg for dlopen(). For
117 * future compatibility we define DL_LAZY */
119 #define mod_open(a) dlopen(a, RTLD_LAZY)
120 #elif defined(__OpenBSD__)
121 #define mod_open(a) dlopen(a, DL_LAZY)
122 #else /* ! __NetBSD__ && ! __OpenBSD__ */
123 #define mod_open(a) dlopen(a, RTLD_NOW)
124 #endif /* __NetBSD__ */
126 #ifndef DLSYM_PREPEND_UNDERSCORE
127 #define mod_symbol(a, b) dlsym(a, b)
128 #else /* ! DLSYM_PREPEND_UNDERSCORE */
129 extern void *mod_symbol (void *, const char *);
130 #endif /* ! DLSYM_PREPEND_UNDERSCORE */
131 #define mod_error() dlerror()
132 #define mod_close(a) dlclose(a)
133 #endif /* ! HAVE_DLFCN_H */
135 /******************************************************************
137 ******************************************************************/
139 extern int lock_reg(int fd, int cmd, int type, off_t offest, int whence, off_t len);
140 #define read_lock(fd, offset, whence, len) \
141 lock_reg((fd), F_SETLK, F_RDLCK, (offset), (whence), (len))
142 #define write_lock(fd, offset, whence, len) \
143 lock_reg((fd), F_SETLK, F_WRLCK, (offset), (whence), (len))
144 #define unlock(fd, offset, whence, len) \
145 lock_reg((fd), F_SETLK, F_UNLCK, (offset), (whence), (len))
147 /******************************************************************
149 ******************************************************************/
151 extern int setnonblock(int fd, int cmd);
152 extern ssize_t readt(int socket, void *data, const size_t length, int setnonblocking, int timeout);
153 extern ssize_t writet(int socket, void *data, const size_t length, int setnonblocking, int timeout);
154 extern const char *getip_string(const struct sockaddr *sa);
155 extern unsigned int getip_port(const struct sockaddr *sa);
156 extern void apply_ip_mask(struct sockaddr *ai, int maskbits);
157 extern int compare_ip(const struct sockaddr *sa1, const struct sockaddr *sa2);
159 /* Structures and functions dealing with dynamic pollfd arrays */
160 enum fdtype {IPC_FD, LISTEN_FD, DISASOCIATED_IPC_FD};
162 enum fdtype fdtype; /* IPC fd or listening socket fd */
163 void *data; /* pointer to AFPconfig for listening socket and *
164 * pointer to afp_child_t for IPC fd */
167 extern void fdset_add_fd(int maxconns,
168 struct pollfd **fdsetp,
169 struct polldata **polldatap,
175 extern void fdset_del_fd(struct pollfd **fdsetp,
176 struct polldata **polldatap,
180 extern int send_fd(int socket, int fd);
181 extern int recv_fd(int fd, int nonblocking);
183 /******************************************************************
185 *****************************************************************/
187 extern const char *getcwdpath(void);
188 extern const char *fullpathname(const char *);
189 extern char *stripped_slashes_basename(char *p);
190 extern int lchdir(const char *dir);
191 extern void randombytes(void *buf, int n);
192 extern int daemonize(int nochdir, int noclose);
194 /******************************************************************
196 *****************************************************************/
198 extern bstring rel_path_in_vol(const char *path, const char *volpath);
200 #endif /* _ATALK_UTIL_H */