diff options
Diffstat (limited to 'resolv')
| -rw-r--r-- | resolv/netdb.h | 368 |
1 files changed, 264 insertions, 104 deletions
diff --git a/resolv/netdb.h b/resolv/netdb.h index d153c9b325..69c2f8a11c 100644 --- a/resolv/netdb.h +++ b/resolv/netdb.h @@ -1,4 +1,4 @@ -/* Copyright (C) 1996,97,98,99,2000,01,02 Free Software Foundation, Inc. + /* Copyright (C) 1996-2002, 2003 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -104,102 +104,146 @@ struct hostent }; /* Open host data base files and mark them as staying open even after - a later search if STAY_OPEN is non-zero. */ -extern void sethostent (int __stay_open) __THROW; + a later search if STAY_OPEN is non-zero. -/* Close host data base files and clear `stay open' flag. */ -extern void endhostent (void) __THROW; + This function is a possible cancellation point and therefore not + marked with __THROW. */ +extern void sethostent (int __stay_open); + +/* Close host data base files and clear `stay open' flag. + + This function is a possible cancellation point and therefore not + marked with __THROW. */ +extern void endhostent (void); /* Get next entry from host data base file. Open data base if - necessary. */ -extern struct hostent *gethostent (void) __THROW; + necessary. + + This function is a possible cancellation point and therefore not + marked with __THROW. */ +extern struct hostent *gethostent (void); /* Return entry from host data base which address match ADDR with - length LEN and type TYPE. */ + length LEN and type TYPE. + + This function is a possible cancellation point and therefore not + marked with __THROW. */ extern struct hostent *gethostbyaddr (__const void *__addr, __socklen_t __len, - int __type) __THROW; + int __type); -/* Return entry from host data base for host with NAME. */ -extern struct hostent *gethostbyname (__const char *__name) __THROW; +/* Return entry from host data base for host with NAME. + + This function is a possible cancellation point and therefore not + marked with __THROW. */ +extern struct hostent *gethostbyname (__const char *__name); #ifdef __USE_MISC /* Return entry from host data base for host with NAME. AF must be set to the address type which is `AF_INET' for IPv4 or `AF_INET6' - for IPv6. */ -extern struct hostent *gethostbyname2 (__const char *__name, int __af) __THROW; + for IPv6. + + This function is not part of POSIX and therefore no official + cancellation point. But due to similarity with an POSIX interface + or due to the implementation it is a cancellation point and + therefore not marked with __THROW. */ +extern struct hostent *gethostbyname2 (__const char *__name, int __af); /* Reentrant versions of the functions above. The additional arguments specify a buffer of BUFLEN starting at BUF. The last argument is a pointer to a variable which gets the value which would be stored in the global variable `herrno' by the - non-reentrant functions. */ + non-reentrant functions. + + These functions are not part of POSIX and therefore no official + cancellation point. But due to similarity with an POSIX interface + or due to the implementation they are cancellation points and + therefore not marked with __THROW. */ extern int gethostent_r (struct hostent *__restrict __result_buf, char *__restrict __buf, size_t __buflen, struct hostent **__restrict __result, - int *__restrict __h_errnop) __THROW; + int *__restrict __h_errnop); extern int gethostbyaddr_r (__const void *__restrict __addr, __socklen_t __len, int __type, struct hostent *__restrict __result_buf, char *__restrict __buf, size_t __buflen, struct hostent **__restrict __result, - int *__restrict __h_errnop) __THROW; + int *__restrict __h_errnop); extern int gethostbyname_r (__const char *__restrict __name, struct hostent *__restrict __result_buf, char *__restrict __buf, size_t __buflen, struct hostent **__restrict __result, - int *__restrict __h_errnop) __THROW; + int *__restrict __h_errnop); extern int gethostbyname2_r (__const char *__restrict __name, int __af, struct hostent *__restrict __result_buf, char *__restrict __buf, size_t __buflen, struct hostent **__restrict __result, - int *__restrict __h_errnop) __THROW; + int *__restrict __h_errnop); #endif /* misc */ /* Open network data base files and mark them as staying open even - after a later search if STAY_OPEN is non-zero. */ -extern void setnetent (int __stay_open) __THROW; + after a later search if STAY_OPEN is non-zero. -/* Close network data base files and clear `stay open' flag. */ -extern void endnetent (void) __THROW; + This function is a possible cancellation point and therefore not + marked with __THROW. */ +extern void setnetent (int __stay_open); + +/* Close network data base files and clear `stay open' flag. + + This function is a possible cancellation point and therefore not + marked with __THROW. */ +extern void endnetent (void); /* Get next entry from network data base file. Open data base if - necessary. */ -extern struct netent *getnetent (void) __THROW; + necessary. + + This function is a possible cancellation point and therefore not + marked with __THROW. */ +extern struct netent *getnetent (void); /* Return entry from network data base which address match NET and - type TYPE. */ -extern struct netent *getnetbyaddr (uint32_t __net, int __type) - __THROW; + type TYPE. -/* Return entry from network data base for network with NAME. */ -extern struct netent *getnetbyname (__const char *__name) __THROW; + This function is a possible cancellation point and therefore not + marked with __THROW. */ +extern struct netent *getnetbyaddr (uint32_t __net, int __type); + +/* Return entry from network data base for network with NAME. + + This function is a possible cancellation point and therefore not + marked with __THROW. */ +extern struct netent *getnetbyname (__const char *__name); #ifdef __USE_MISC /* Reentrant versions of the functions above. The additional arguments specify a buffer of BUFLEN starting at BUF. The last argument is a pointer to a variable which gets the value which would be stored in the global variable `herrno' by the - non-reentrant functions. */ + non-reentrant functions. + + These functions are not part of POSIX and therefore no official + cancellation point. But due to similarity with an POSIX interface + or due to the implementation they are cancellation points and + therefore not marked with __THROW. */ extern int getnetent_r (struct netent *__restrict __result_buf, char *__restrict __buf, size_t __buflen, struct netent **__restrict __result, - int *__restrict __h_errnop) __THROW; + int *__restrict __h_errnop); extern int getnetbyaddr_r (uint32_t __net, int __type, struct netent *__restrict __result_buf, char *__restrict __buf, size_t __buflen, struct netent **__restrict __result, - int *__restrict __h_errnop) __THROW; + int *__restrict __h_errnop); extern int getnetbyname_r (__const char *__restrict __name, struct netent *__restrict __result_buf, char *__restrict __buf, size_t __buflen, struct netent **__restrict __result, - int *__restrict __h_errnop) __THROW; + int *__restrict __h_errnop); #endif /* misc */ @@ -213,44 +257,63 @@ struct servent }; /* Open service data base files and mark them as staying open even - after a later search if STAY_OPEN is non-zero. */ -extern void setservent (int __stay_open) __THROW; + after a later search if STAY_OPEN is non-zero. -/* Close service data base files and clear `stay open' flag. */ -extern void endservent (void) __THROW; + This function is a possible cancellation point and therefore not + marked with __THROW. */ +extern void setservent (int __stay_open); + +/* Close service data base files and clear `stay open' flag. + + This function is a possible cancellation point and therefore not + marked with __THROW. */ +extern void endservent (void); /* Get next entry from service data base file. Open data base if - necessary. */ -extern struct servent *getservent (void) __THROW; + necessary. + + This function is a possible cancellation point and therefore not + marked with __THROW. */ +extern struct servent *getservent (void); /* Return entry from network data base for network with NAME and - protocol PROTO. */ + protocol PROTO. + + This function is a possible cancellation point and therefore not + marked with __THROW. */ extern struct servent *getservbyname (__const char *__name, - __const char *__proto) __THROW; + __const char *__proto); /* Return entry from service data base which matches port PORT and - protocol PROTO. */ -extern struct servent *getservbyport (int __port, __const char *__proto) - __THROW; + protocol PROTO. + + This function is a possible cancellation point and therefore not + marked with __THROW. */ +extern struct servent *getservbyport (int __port, __const char *__proto); #ifdef __USE_MISC /* Reentrant versions of the functions above. The additional - arguments specify a buffer of BUFLEN starting at BUF. */ + arguments specify a buffer of BUFLEN starting at BUF. + + These functions are not part of POSIX and therefore no official + cancellation point. But due to similarity with an POSIX interface + or due to the implementation they are cancellation points and + therefore not marked with __THROW. */ extern int getservent_r (struct servent *__restrict __result_buf, char *__restrict __buf, size_t __buflen, - struct servent **__restrict __result) __THROW; + struct servent **__restrict __result); extern int getservbyname_r (__const char *__restrict __name, __const char *__restrict __proto, struct servent *__restrict __result_buf, char *__restrict __buf, size_t __buflen, - struct servent **__restrict __result) __THROW; + struct servent **__restrict __result); extern int getservbyport_r (int __port, __const char *__restrict __proto, struct servent *__restrict __result_buf, char *__restrict __buf, size_t __buflen, - struct servent **__restrict __result) __THROW; + struct servent **__restrict __result); #endif /* misc */ @@ -263,64 +326,108 @@ struct protoent }; /* Open protocol data base files and mark them as staying open even - after a later search if STAY_OPEN is non-zero. */ -extern void setprotoent (int __stay_open) __THROW; + after a later search if STAY_OPEN is non-zero. -/* Close protocol data base files and clear `stay open' flag. */ -extern void endprotoent (void) __THROW; + This function is a possible cancellation point and therefore not + marked with __THROW. */ +extern void setprotoent (int __stay_open); + +/* Close protocol data base files and clear `stay open' flag. + + This function is a possible cancellation point and therefore not + marked with __THROW. */ +extern void endprotoent (void); /* Get next entry from protocol data base file. Open data base if - necessary. */ -extern struct protoent *getprotoent (void) __THROW; + necessary. + + This function is a possible cancellation point and therefore not + marked with __THROW. */ +extern struct protoent *getprotoent (void); -/* Return entry from protocol data base for network with NAME. */ -extern struct protoent *getprotobyname (__const char *__name) __THROW; +/* Return entry from protocol data base for network with NAME. -/* Return entry from protocol data base which number is PROTO. */ -extern struct protoent *getprotobynumber (int __proto) __THROW; + This function is a possible cancellation point and therefore not + marked with __THROW. */ +extern struct protoent *getprotobyname (__const char *__name); + +/* Return entry from protocol data base which number is PROTO. + + This function is a possible cancellation point and therefore not + marked with __THROW. */ +extern struct protoent *getprotobynumber (int __proto); #ifdef __USE_MISC /* Reentrant versions of the functions above. The additional - arguments specify a buffer of BUFLEN starting at BUF. */ + arguments specify a buffer of BUFLEN starting at BUF. + + These functions are not part of POSIX and therefore no official + cancellation point. But due to similarity with an POSIX interface + or due to the implementation they are cancellation points and + therefore not marked with __THROW. */ extern int getprotoent_r (struct protoent *__restrict __result_buf, char *__restrict __buf, size_t __buflen, - struct protoent **__restrict __result) __THROW; + struct protoent **__restrict __result); extern int getprotobyname_r (__const char *__restrict __name, struct protoent *__restrict __result_buf, char *__restrict __buf, size_t __buflen, - struct protoent **__restrict __result) __THROW; + struct protoent **__restrict __result); extern int getprotobynumber_r (int __proto, struct protoent *__restrict __result_buf, char *__restrict __buf, size_t __buflen, - struct protoent **__restrict __result) __THROW; -#endif /* misc */ + struct protoent **__restrict __result); + + +/* Establish network group NETGROUP for enumeration. + This function is not part of POSIX and therefore no official + cancellation point. But due to similarity with an POSIX interface + or due to the implementation it is a cancellation point and + therefore not marked with __THROW. */ +extern int setnetgrent (__const char *__netgroup); -/* Establish network group NETGROUP for enumeration. */ -extern int setnetgrent (__const char *__netgroup) __THROW; +/* Free all space allocated by previous `setnetgrent' call. -/* Free all space allocated by previous `setnetgrent' call. */ -extern void endnetgrent (void) __THROW; + This function is not part of POSIX and therefore no official + cancellation point. But due to similarity with an POSIX interface + or due to the implementation it is a cancellation point and + therefore not marked with __THROW. */ +extern void endnetgrent (void); /* Get next member of netgroup established by last `setnetgrent' call - and return pointers to elements in HOSTP, USERP, and DOMAINP. */ + and return pointers to elements in HOSTP, USERP, and DOMAINP. + + This function is not part of POSIX and therefore no official + cancellation point. But due to similarity with an POSIX interface + or due to the implementation it is a cancellation point and + therefore not marked with __THROW. */ extern int getnetgrent (char **__restrict __hostp, char **__restrict __userp, - char **__restrict __domainp) __THROW; + char **__restrict __domainp); -#ifdef __USE_MISC -/* Test whether NETGROUP contains the triple (HOST,USER,DOMAIN). */ + +/* Test whether NETGROUP contains the triple (HOST,USER,DOMAIN). + + This function is not part of POSIX and therefore no official + cancellation point. But due to similarity with an POSIX interface + or due to the implementation it is a cancellation point and + therefore not marked with __THROW. */ extern int innetgr (__const char *__netgroup, __const char *__host, - __const char *__user, __const char *domain) __THROW; + __const char *__user, __const char *domain); + +/* Reentrant version of `getnetgrent' where result is placed in BUFFER. -/* Reentrant version of `getnetgrent' where result is placed in BUFFER. */ + This function is not part of POSIX and therefore no official + cancellation point. But due to similarity with an POSIX interface + or due to the implementation it is a cancellation point and + therefore not marked with __THROW. */ extern int getnetgrent_r (char **__restrict __hostp, char **__restrict __userp, char **__restrict __domainp, - char *__restrict __buffer, size_t __buflen) __THROW; + char *__restrict __buffer, size_t __buflen); #endif /* misc */ @@ -330,60 +437,98 @@ extern int getnetgrent_r (char **__restrict __hostp, executed as REMUSER. In *FD2P the descriptor to the socket for the connection is returned. The caller must have the right to use a reserved port. When the function returns *AHOST contains the - official host name. */ + official host name. + + This function is not part of POSIX and therefore no official + cancellation point. But due to similarity with an POSIX interface + or due to the implementation it is a cancellation point and + therefore not marked with __THROW. */ extern int rcmd (char **__restrict __ahost, unsigned short int __rport, __const char *__restrict __locuser, __const char *__restrict __remuser, - __const char *__restrict __cmd, int *__restrict __fd2p) - __THROW; + __const char *__restrict __cmd, int *__restrict __fd2p); /* This is the equivalent function where the protocol can be selected - and which therefore can be used for IPv6. */ + and which therefore can be used for IPv6. + + This function is not part of POSIX and therefore no official + cancellation point. But due to similarity with an POSIX interface + or due to the implementation it is a cancellation point and + therefore not marked with __THROW. */ extern int rcmd_af (char **__restrict __ahost, unsigned short int __rport, __const char *__restrict __locuser, __const char *__restrict __remuser, __const char *__restrict __cmd, int *__restrict __fd2p, - sa_family_t __af) __THROW; + sa_family_t __af); /* Call `rexecd' at port RPORT on remote machine *AHOST to execute CMD. The process runs at the remote machine using the ID of user NAME whose cleartext password is PASSWD. In *FD2P the descriptor to the socket for the connection is returned. When the function - returns *AHOST contains the official host name. */ + returns *AHOST contains the official host name. + + This function is not part of POSIX and therefore no official + cancellation point. But due to similarity with an POSIX interface + or due to the implementation it is a cancellation point and + therefore not marked with __THROW. */ extern int rexec (char **__restrict __ahost, int __rport, __const char *__restrict __name, __const char *__restrict __pass, - __const char *__restrict __cmd, int *__restrict __fd2p) - __THROW; + __const char *__restrict __cmd, int *__restrict __fd2p); /* This is the equivalent function where the protocol can be selected - and which therefore can be used for IPv6. */ + and which therefore can be used for IPv6. + + This function is not part of POSIX and therefore no official + cancellation point. But due to similarity with an POSIX interface + or due to the implementation it is a cancellation point and + therefore not marked with __THROW. */ extern int rexec_af (char **__restrict __ahost, int __rport, __const char *__restrict __name, __const char *__restrict __pass, __const char *__restrict __cmd, int *__restrict __fd2p, - sa_family_t __af) __THROW; + sa_family_t __af); /* Check whether user REMUSER on system RHOST is allowed to login as LOCUSER. If SUSER is not zero the user tries to become superuser. Return 0 if - it is possible. */ + it is possible. + + This function is not part of POSIX and therefore no official + cancellation point. But due to similarity with an POSIX interface + or due to the implementation it is a cancellation point and + therefore not marked with __THROW. */ extern int ruserok (__const char *__rhost, int __suser, - __const char *__remuser, __const char *__locuser) __THROW; + __const char *__remuser, __const char *__locuser); /* This is the equivalent function where the protocol can be selected - and which therefore can be used for IPv6. */ + and which therefore can be used for IPv6. + + This function is not part of POSIX and therefore no official + cancellation point. But due to similarity with an POSIX interface + or due to the implementation it is a cancellation point and + therefore not marked with __THROW. */ extern int ruserok_af (__const char *__rhost, int __suser, __const char *__remuser, __const char *__locuser, - sa_family_t __af) __THROW; + sa_family_t __af); /* Try to allocate reserved port, returning a descriptor for a socket opened at this port or -1 if unsuccessful. The search for an available port - will start at ALPORT and continues with lower numbers. */ -extern int rresvport (int *__alport) __THROW; + will start at ALPORT and continues with lower numbers. + + This function is not part of POSIX and therefore no official + cancellation point. But due to similarity with an POSIX interface + or due to the implementation it is a cancellation point and + therefore not marked with __THROW. */ +extern int rresvport (int *__alport); /* This is the equivalent function where the protocol can be selected - and which therefore can be used for IPv6. */ -extern int rresvport_af (int *__alport, sa_family_t __af) __THROW; + and which therefore can be used for IPv6. + + This function is not part of POSIX and therefore no official + cancellation point. But due to similarity with an POSIX interface + or due to the implementation it is a cancellation point and + therefore not marked with __THROW. */ +extern int rresvport_af (int *__alport, sa_family_t __af); #endif @@ -455,11 +600,14 @@ struct gaicb # define NI_DGRAM 16 /* Look up UDP service rather than TCP. */ /* Translate name of a service location and/or a service name to set of - socket addresses. */ + socket addresses. + + This function is a possible cancellation point and therefore not + marked with __THROW. */ extern int getaddrinfo (__const char *__restrict __name, __const char *__restrict __service, __const struct addrinfo *__restrict __req, - struct addrinfo **__restrict __pai) __THROW; + struct addrinfo **__restrict __pai); /* Free `addrinfo' structure AI including associated storage. */ extern void freeaddrinfo (struct addrinfo *__ai) __THROW; @@ -467,33 +615,45 @@ extern void freeaddrinfo (struct addrinfo *__ai) __THROW; /* Convert error return from getaddrinfo() to a string. */ extern __const char *gai_strerror (int __ecode) __THROW; -/* Translate a socket address to a location and service name. */ +/* Translate a socket address to a location and service name. + + This function is a possible cancellation point and therefore not + marked with __THROW. */ extern int getnameinfo (__const struct sockaddr *__restrict __sa, socklen_t __salen, char *__restrict __host, socklen_t __hostlen, char *__restrict __serv, - socklen_t __servlen, unsigned int __flags) __THROW; + socklen_t __servlen, unsigned int __flags); +#endif /* POSIX */ -# ifdef __USE_GNU +#ifdef __USE_GNU /* Enqueue ENT requests from the LIST. If MODE is GAI_WAIT wait until all requests are handled. If WAIT is GAI_NOWAIT return immediately after - queueing the requests and signal completion according to SIG. */ + queueing the requests and signal completion according to SIG. + + This function is not part of POSIX and therefore no official + cancellation point. But due to similarity with an POSIX interface + or due to the implementation it is a cancellation point and + therefore not marked with __THROW. */ extern int getaddrinfo_a (int __mode, struct gaicb *__list[__restrict_arr], - int __ent, struct sigevent *__restrict __sig) - __THROW; + int __ent, struct sigevent *__restrict __sig); /* Suspend execution of the thread until at least one of the ENT requests in LIST is handled. If TIMEOUT is not a null pointer it specifies the - longest time the function keeps waiting before returning with an error. */ + longest time the function keeps waiting before returning with an error. + + This function is not part of POSIX and therefore no official + cancellation point. But due to similarity with an POSIX interface + or due to the implementation it is a cancellation point and + therefore not marked with __THROW. */ extern int gai_suspend (__const struct gaicb *__const __list[], int __ent, - __const struct timespec *__timeout) __THROW; + __const struct timespec *__timeout); /* Get the error status of the request REQ. */ extern int gai_error (struct gaicb *__req) __THROW; /* Cancel the requests associated with GAICBP. */ extern int gai_cancel (struct gaicb *__gaicbp) __THROW; -# endif /* GNU */ -#endif /* POSIX */ +#endif /* GNU */ __END_DECLS |