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