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>
19 #include <atalk/unicode.h>
20 #include <atalk/bstrlib.h>
22 /* exit error codes */
23 #define EXITERR_CLNT 1 /* client related error */
24 #define EXITERR_CONF 2 /* error in config files/cmd line parameters */
25 #define EXITERR_SYS 3 /* local system error */
27 /* Print a SBT and exit */
28 #define AFP_PANIC(why) \
30 netatalk_panic(why); \
34 /* LOG assert errors */
36 #define AFP_ASSERT(b) \
47 #define MIN(a, b) ((a) < (b) ? (a) : (b))
51 #define MAX(a, b) ((a) > (b) ? (a) : (b))
54 #define STRCMP(a,b,c) (strcmp(a,c) b 0)
55 #define ZERO_STRUCT(a) memset(&(a), 0, sizeof(a))
56 #define ZERO_STRUCTP(a) memset((a), 0, sizeof(a))
59 extern ssize_t sys_sendfile (int __out_fd, int __in_fd, off_t *__offset,size_t __count);
62 extern const int _diacasemap[], _dialowermap[];
64 extern char **getifacelist(void);
65 extern void freeifacelist(char **);
67 #define diatolower(x) _dialowermap[(unsigned char) (x)]
68 #define diatoupper(x) _diacasemap[(unsigned char) (x)]
69 extern void bprint (char *, int);
70 extern int strdiacasecmp (const char *, const char *);
71 extern int strndiacasecmp (const char *, const char *, size_t);
72 extern pid_t server_lock (char * /*program*/, char * /*file*/, int /*debug*/);
73 extern void fault_setup (void (*fn)(void *));
74 extern void netatalk_panic(const char *why);
75 #define server_unlock(x) (unlink(x))
78 extern void *mod_open (const char *);
79 extern void *mod_symbol (void *, const char *);
80 extern void mod_close (void *);
81 #define mod_error() ""
82 #else /* ! HAVE_DLFCN_H */
87 #endif /* ! RTLD_NOW */
89 /* NetBSD doesn't like RTLD_NOW for dlopen (it fails). Use RTLD_LAZY.
90 * OpenBSD currently does not use the second arg for dlopen(). For
91 * future compatibility we define DL_LAZY */
93 #define mod_open(a) dlopen(a, RTLD_LAZY)
94 #elif defined(__OpenBSD__)
95 #define mod_open(a) dlopen(a, DL_LAZY)
96 #else /* ! __NetBSD__ && ! __OpenBSD__ */
97 #define mod_open(a) dlopen(a, RTLD_NOW)
98 #endif /* __NetBSD__ */
100 #ifndef DLSYM_PREPEND_UNDERSCORE
101 #define mod_symbol(a, b) dlsym(a, b)
102 #else /* ! DLSYM_PREPEND_UNDERSCORE */
103 extern void *mod_symbol (void *, const char *);
104 #endif /* ! DLSYM_PREPEND_UNDERSCORE */
105 #define mod_error() dlerror()
106 #define mod_close(a) dlclose(a)
107 #endif /* ! HAVE_DLFCN_H */
109 /******************************************************************
111 ******************************************************************/
113 extern int lock_reg(int fd, int cmd, int type, off_t offest, int whence, off_t len);
114 #define read_lock(fd, offset, whence, len) \
115 lock_reg((fd), F_SETLK, F_RDLCK, (offset), (whence), (len))
116 #define write_lock(fd, offset, whence, len) \
117 lock_reg((fd), F_SETLK, F_WRLCK, (offset), (whence), (len))
118 #define unlock(fd, offset, whence, len) \
119 lock_reg((fd), F_SETLK, F_UNLCK, (offset), (whence), (len))
121 /******************************************************************
123 ******************************************************************/
125 extern int setnonblock(int fd, int cmd);
126 extern ssize_t readt(int socket, void *data, const size_t length, int setnonblocking, int timeout);
127 extern ssize_t writet(int socket, void *data, const size_t length, int setnonblocking, int timeout);
128 extern const char *getip_string(const struct sockaddr *sa);
129 extern unsigned int getip_port(const struct sockaddr *sa);
130 extern void apply_ip_mask(struct sockaddr *ai, int maskbits);
131 extern int compare_ip(const struct sockaddr *sa1, const struct sockaddr *sa2);
133 /* Structures and functions dealing with dynamic pollfd arrays */
134 enum fdtype {IPC_FD, LISTEN_FD};
136 enum fdtype fdtype; /* IPC fd or listening socket fd */
137 void *data; /* pointer to AFPconfig for listening socket and *
138 * pointer to afp_child_t for IPC fd */
141 extern void fdset_add_fd(struct pollfd **fdsetp,
142 struct polldata **polldatap,
148 extern void fdset_del_fd(struct pollfd **fdsetp,
149 struct polldata **polldatap,
153 extern int send_fd(int socket, int fd);
154 extern int recv_fd(int fd, int nonblocking);
156 /******************************************************************
158 *****************************************************************/
160 extern const char *abspath(const char *name);
161 extern const char *getcwdpath(void);
162 extern char *stripped_slashes_basename(char *p);
163 extern int lchdir(const char *dir);
164 extern void randombytes(void *buf, int n);
165 #endif /* _ATALK_UTIL_H */
167 /******************************************************************
169 *****************************************************************/
171 extern bstring rel_path_in_vol(const char *path, const char *volpath);