nfs-utils 1.1.3 and glibc 2.2

nfs-utils 1.1.3 and glibc 2.2

[Gabor Z. Papp]

Hello,

seems like nfs-utils no more compatible with glibc 2.2?

make[2]: Entering directory
`/home/gzp/src/nfs-utils-1.1.3/utils/mount'
gcc -DHAVE_CONFIG_H -I. -I../../support/include
-I../../support/include -D_GNU_SOURCE -Wall -Wstrict-prototypes  -pipe
-g -O2 -MT network.o -MD -MP -MF .deps/network.Tpo -c -o network.o network.c
network.c: In function 'nfs_name_to_address':
network.c:154: error: 'AI_ADDRCONFIG' undeclared (first use in this function)
network.c:154: error: (Each undeclared identifier is reported only once
network.c:154: error: for each function it appears in.)
network.c:160: error: 'AI_V4MAPPED' undeclared (first use in this function)
network.c:160: error: 'AI_ALL' undeclared (first use in this function)
make[2]: *** [network.o] Error 1
make[2]: Leaving directory `/home/gzp/src/nfs-utils-1.1.3/utils/mount'

1.1.2 compiles fine.

Re: nfs-utils 1.1.3 and glibc 2.2

[Chuck Lever]

On Mon, Jul 28, 2008 at 10:30 AM, Gabor Z. Papp <gzp-2g/1Y3AqmNE@public.gmane.org> wrote:
> Hello,
>
> seems like nfs-utils no more compatible with glibc 2.2?

Does glibc 2.2 have getaddrinfo(3)?  If so, it should have these
macros defined somewhere.

Other parts of nfs-utils already use getaddrinfo, and ./configure is
designed to blow up if getaddrinfo(3) isn't present, so I find this a
little odd.

> make[2]: Entering directory
> `/home/gzp/src/nfs-utils-1.1.3/utils/mount'
> gcc -DHAVE_CONFIG_H -I. -I../../support/include
> -I../../support/include -D_GNU_SOURCE -Wall -Wstrict-prototypes  -pipe
> -g -O2 -MT network.o -MD -MP -MF .deps/network.Tpo -c -o network.o network.c
> network.c: In function 'nfs_name_to_address':
> network.c:154: error: 'AI_ADDRCONFIG' undeclared (first use in this function)
> network.c:154: error: (Each undeclared identifier is reported only once
> network.c:154: error: for each function it appears in.)
> network.c:160: error: 'AI_V4MAPPED' undeclared (first use in this function)
> network.c:160: error: 'AI_ALL' undeclared (first use in this function)
> make[2]: *** [network.o] Error 1
> make[2]: Leaving directory `/home/gzp/src/nfs-utils-1.1.3/utils/mount'
>
> 1.1.2 compiles fine.

--
Chuck Lever

Re: nfs-utils 1.1.3 and glibc 2.2

[Chuck Lever]

On Mon, Jul 28, 2008 at 10:30 AM, Gabor Z. Papp <gzp-2g/1Y3AqmNE@public.gmane.org> wrote:
> Hello,
>
> seems like nfs-utils no more compatible with glibc 2.2?

By the way, this wasn't by design.  :-)

> make[2]: Entering directory
> `/home/gzp/src/nfs-utils-1.1.3/utils/mount'
> gcc -DHAVE_CONFIG_H -I. -I../../support/include
> -I../../support/include -D_GNU_SOURCE -Wall -Wstrict-prototypes  -pipe
> -g -O2 -MT network.o -MD -MP -MF .deps/network.Tpo -c -o network.o network.c
> network.c: In function 'nfs_name_to_address':
> network.c:154: error: 'AI_ADDRCONFIG' undeclared (first use in this function)
> network.c:154: error: (Each undeclared identifier is reported only once
> network.c:154: error: for each function it appears in.)
> network.c:160: error: 'AI_V4MAPPED' undeclared (first use in this function)
> network.c:160: error: 'AI_ALL' undeclared (first use in this function)
> make[2]: *** [network.o] Error 1
> make[2]: Leaving directory `/home/gzp/src/nfs-utils-1.1.3/utils/mount'
>
> 1.1.2 compiles fine.

Can you tell me what distribution you are using?  I don't think I have
access to a glibc2.2-based distribution to do testing/debugging, but
if you are using a fairly contemporary distribution that is
glibc2.2-based, I might try setting up a temporary guest for testing.

In my distribution (Fedora), these macros, along with getaddrinfo(3),
are defined in /usr/include/netdb.h.  utils/mount/network.c appears to
include this file directly, so I am still puzzled by this.

-- 
Chuck Lever

Re: nfs-utils 1.1.3 and glibc 2.2

[Gabor Z. Papp]

[-- Attachment #1: Type: text/plain, Size: 2968 bytes --]

* "Chuck Lever" <chuck.lever@oracle.com>:

| > make[2]: Entering directory
| > `/home/gzp/src/nfs-utils-1.1.3/utils/mount'
| > gcc -DHAVE_CONFIG_H -I. -I../../support/include
| > -I../../support/include -D_GNU_SOURCE -Wall -Wstrict-prototypes  -pipe
| > -g -O2 -MT network.o -MD -MP -MF .deps/network.Tpo -c -o network.o network.c
| > network.c: In function 'nfs_name_to_address':
| > network.c:154: error: 'AI_ADDRCONFIG' undeclared (first use in this function)
| > network.c:154: error: (Each undeclared identifier is reported only once
| > network.c:154: error: for each function it appears in.)
| > network.c:160: error: 'AI_V4MAPPED' undeclared (first use in this function)
| > network.c:160: error: 'AI_ALL' undeclared (first use in this function)
| > make[2]: *** [network.o] Error 1
| > make[2]: Leaving directory `/home/gzp/src/nfs-utils-1.1.3/utils/mount'
| >
| > 1.1.2 compiles fine.

| Can you tell me what distribution you are using? 

No distro.

| In my distribution (Fedora), these macros, along with getaddrinfo(3),
| are defined in /usr/include/netdb.h.  utils/mount/network.c appears to
| include this file directly, so I am still puzzled by this.

I'll attach the glibc 2.2.5 netdb.h, and grep AI_ in /usr/include
returns only this:

$ grep AI_ *
netdb.h:#  define GAI_WAIT      0
netdb.h:#  define GAI_NOWAIT    1
netdb.h:# define AI_PASSIVE     0x0001  /* Socket address is intended for `bind'.  */
netdb.h:# define AI_CANONNAME   0x0002  /* Request for canonical name.  */
netdb.h:# define AI_NUMERICHOST 0x0004  /* Don't use name resolution. */
netdb.h:# define EAI_BADFLAGS     -1    /* Invalid value for `ai_flags' field.  */
netdb.h:# define EAI_NONAME       -2    /* NAME or SERVICE is unknown.  */
netdb.h:# define EAI_AGAIN        -3    /* Temporary failure in name resolution.  */
netdb.h:# define EAI_FAIL         -4    /* Non-recoverable failure in name res.  */
netdb.h:# define EAI_NODATA       -5    /* No address associated with NAME.  */
netdb.h:# define EAI_FAMILY       -6    /* `ai_family' not supported. */
netdb.h:# define EAI_SOCKTYPE     -7    /* `ai_socktype' not supported.  */
netdb.h:# define EAI_SERVICE      -8    /* SERVICE not supported for `ai_socktype'.  */
netdb.h:# define EAI_ADDRFAMILY   -9    /* Address family for NAME no tsupported.  */
netdb.h:# define EAI_MEMORY       -10   /* Memory allocation failure. */
netdb.h:# define EAI_SYSTEM       -11   /* System error returned in `errno'.  */
netdb.h:#  define EAI_INPROGRESS  -100  /* Processing request in progress.  */
netdb.h:#  define EAI_CANCELED    -101  /* Request canceled.  */
netdb.h:#  define EAI_NOTCANCELED -102  /* Request not canceled.  */
netdb.h:#  define EAI_ALLDONE     -103  /* All requests done.  */
netdb.h:#  define EAI_INTR        -104  /* Interrupted by a signal. */
netdb.h:/* Enqueue ENT requests from the LIST.  If MODE is GAI_WAIT wait until all
netdb.h:   requests are handled.  If WAIT is GAI_NOWAIT return immediately after


[-- Attachment #2: netdb.h --]
[-- Type: application/octet-stream, Size: 19740 bytes --]

/* Copyright (C) 1996,1997,1998,1999,2000,2001 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
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */

/* All data returned by the network data base library are supplied in
   host order and returned in network order (suitable for use in
   system calls).  */

#ifndef	_NETDB_H
#define	_NETDB_H	1

#include <features.h>

#include <netinet/in.h>
#include <stdint.h>
#ifdef __USE_MISC
/* This is necessary to make this include file properly replace the
   Sun version.  */
# include <rpc/netdb.h>
#endif

#ifdef __USE_GNU
# define __need_sigevent_t
# include <bits/siginfo.h>
# define __need_timespec
# include <time.h>
#endif

#include <bits/netdb.h>

/* Absolute file name for network data base files.  */
#define	_PATH_HEQUIV		"/etc/hosts.equiv"
#define	_PATH_HOSTS		"/etc/hosts"
#define	_PATH_NETWORKS		"/etc/networks"
#define	_PATH_NSSWITCH_CONF	"/etc/nsswitch.conf"
#define	_PATH_PROTOCOLS		"/etc/protocols"
#define	_PATH_SERVICES		"/etc/services"


__BEGIN_DECLS

/* Error status for non-reentrant lookup functions.  */
extern int h_errno;

/* Function to get address of global `h_errno' variable.  */
extern int *__h_errno_location (void) __THROW __attribute__ ((__const__));

#ifdef _LIBC
# ifdef _LIBC_REENTRANT
static inline int
__set_h_errno (int __err)
{
  return *__h_errno_location () = __err;
}
# else
#  define __set_h_errno(x) (h_errno = (x))
# endif	/* _LIBC_REENTRANT */
#endif /* _LIBC */


#if !defined _LIBC || defined _LIBC_REENTRANT
/* Use a macro to access always the thread specific `h_errno' variable.  */
# define h_errno (*__h_errno_location ())
#endif


/* Possible values left in `h_errno'.  */
#define	NETDB_INTERNAL	-1	/* See errno.  */
#define	NETDB_SUCCESS	0	/* No problem.  */
#define	HOST_NOT_FOUND	1	/* Authoritative Answer Host not found.  */
#define	TRY_AGAIN	2	/* Non-Authoritative Host not found,
				   or SERVERFAIL.  */
#define	NO_RECOVERY	3	/* Non recoverable errors, FORMERR, REFUSED,
				   NOTIMP.  */
#define	NO_DATA		4	/* Valid name, no data record of requested
				   type.  */
#define	NO_ADDRESS	NO_DATA	/* No address, look for MX record.  */

#ifdef __USE_XOPEN2K
/* Highest reserved Internet port number.  */
# define IPPORT_RESERVED	1024
#endif

#ifdef __USE_GNU
/* Scope delimiter for getaddrinfo(), getnameinfo().  */
# define SCOPE_DELIMITER	'%'
#endif

/* Print error indicated by `h_errno' variable on standard error.  STR
   if non-null is printed before the error string.  */
extern void herror (__const char *__str) __THROW;

/* Return string associated with error ERR_NUM.  */
extern __const char *hstrerror (int __err_num) __THROW;



/* Description of data base entry for a single host.  */
struct hostent
{
  char *h_name;			/* Official name of host.  */
  char **h_aliases;		/* Alias list.  */
  int h_addrtype;		/* Host address type.  */
  int h_length;			/* Length of address.  */
  char **h_addr_list;		/* List of addresses from name server.  */
#define	h_addr	h_addr_list[0]	/* Address, for backward compatibility.  */
};

/* 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;

/* Close host data base files and clear `stay open' flag.  */
extern void endhostent (void) __THROW;

/* Get next entry from host data base file.  Open data base if
   necessary.  */
extern struct hostent *gethostent (void) __THROW;

/* Return entry from host data base which address match ADDR with
   length LEN and type TYPE.  */
extern struct hostent *gethostbyaddr (__const void *__addr, __socklen_t __len,
				      int __type) __THROW;

/* Return entry from host data base for host with NAME.  */
extern struct hostent *gethostbyname (__const char *__name) __THROW;

#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;

/* 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.  */
extern int gethostent_r (struct hostent *__restrict __result_buf,
			 char *__restrict __buf, size_t __buflen,
			 struct hostent **__restrict __result,
			 int *__restrict __h_errnop) __THROW;

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;

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;

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;
#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;

/* Close network data base files and clear `stay open' flag.  */
extern void endnetent (void) __THROW;

/* Get next entry from network data base file.  Open data base if
   necessary.  */
extern struct netent *getnetent (void) __THROW;

/* Return entry from network data base which address match NET and
   type TYPE.  */
extern struct netent *getnetbyaddr (uint32_t __net, int __type)
     __THROW;

/* Return entry from network data base for network with NAME.  */
extern struct netent *getnetbyname (__const char *__name) __THROW;

#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.  */
extern int getnetent_r (struct netent *__restrict __result_buf,
			char *__restrict __buf, size_t __buflen,
			struct netent **__restrict __result,
			int *__restrict __h_errnop) __THROW;

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;

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;
#endif	/* misc */


/* Description of data base entry for a single service.  */
struct servent
{
  char *s_name;			/* Official service name.  */
  char **s_aliases;		/* Alias list.  */
  int s_port;			/* Port number.  */
  char *s_proto;		/* Protocol to use.  */
};

/* 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;

/* Close service data base files and clear `stay open' flag.  */
extern void endservent (void) __THROW;

/* Get next entry from service data base file.  Open data base if
   necessary.  */
extern struct servent *getservent (void) __THROW;

/* Return entry from network data base for network with NAME and
   protocol PROTO.  */
extern struct servent *getservbyname (__const char *__name,
				      __const char *__proto) __THROW;

/* Return entry from service data base which matches port PORT and
   protocol PROTO.  */
extern struct servent *getservbyport (int __port, __const char *__proto)
     __THROW;


#ifdef	__USE_MISC
/* Reentrant versions of the functions above.  The additional
   arguments specify a buffer of BUFLEN starting at BUF.  */
extern int getservent_r (struct servent *__restrict __result_buf,
			 char *__restrict __buf, size_t __buflen,
			 struct servent **__restrict __result) __THROW;

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;

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;
#endif	/* misc */


/* Description of data base entry for a single service.  */
struct protoent
{
  char *p_name;			/* Official protocol name.  */
  char **p_aliases;		/* Alias list.  */
  int p_proto;			/* Protocol number.  */
};

/* 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;

/* Close protocol data base files and clear `stay open' flag.  */
extern void endprotoent (void) __THROW;

/* Get next entry from protocol data base file.  Open data base if
   necessary.  */
extern struct protoent *getprotoent (void) __THROW;

/* Return entry from protocol data base for network with NAME.  */
extern struct protoent *getprotobyname (__const char *__name) __THROW;

/* Return entry from protocol data base which number is PROTO.  */
extern struct protoent *getprotobynumber (int __proto) __THROW;


#ifdef	__USE_MISC
/* Reentrant versions of the functions above.  The additional
   arguments specify a buffer of BUFLEN starting at BUF.  */
extern int getprotoent_r (struct protoent *__restrict __result_buf,
			  char *__restrict __buf, size_t __buflen,
			  struct protoent **__restrict __result) __THROW;

extern int getprotobyname_r (__const char *__restrict __name,
			     struct protoent *__restrict __result_buf,
			     char *__restrict __buf, size_t __buflen,
			     struct protoent **__restrict __result) __THROW;

extern int getprotobynumber_r (int __proto,
			       struct protoent *__restrict __result_buf,
			       char *__restrict __buf, size_t __buflen,
			       struct protoent **__restrict __result) __THROW;
#endif	/* misc */


/* Establish network group NETGROUP for enumeration.  */
extern int setnetgrent (__const char *__netgroup) __THROW;

/* Free all space allocated by previous `setnetgrent' call.  */
extern void endnetgrent (void) __THROW;

/* Get next member of netgroup established by last `setnetgrent' call
   and return pointers to elements in HOSTP, USERP, and DOMAINP.  */
extern int getnetgrent (char **__restrict __hostp,
			char **__restrict __userp,
			char **__restrict __domainp) __THROW;

#ifdef	__USE_MISC
/* Test whether NETGROUP contains the triple (HOST,USER,DOMAIN).  */
extern int innetgr (__const char *__netgroup, __const char *__host,
		    __const char *__user, __const char *domain) __THROW;

/* Reentrant version of `getnetgrent' where result is placed in BUFFER.  */
extern int getnetgrent_r (char **__restrict __hostp,
			  char **__restrict __userp,
			  char **__restrict __domainp,
			  char *__restrict __buffer, size_t __buflen) __THROW;
#endif	/* misc */


#ifdef __USE_BSD
/* Call `rshd' at port RPORT on remote machine *AHOST to execute CMD.
   The local user is LOCUSER, on the remote machine the command is
   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.  */
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;

/* This is the equivalent function where the protocol can be selected
   and which therefore can be used for IPv6.  */
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;

/* 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.  */
extern int rexec (char **__restrict __ahost, int __rport,
		  __const char *__restrict __name,
		  __const char *__restrict __pass,
		  __const char *__restrict __cmd, int *__restrict __fd2p)
     __THROW;

/* This is the equivalent function where the protocol can be selected
   and which therefore can be used for IPv6.  */
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;

/* 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.  */
extern int ruserok (__const char *__rhost, int __suser,
		    __const char *__remuser, __const char *__locuser) __THROW;

/* This is the equivalent function where the protocol can be selected
   and which therefore can be used for IPv6.  */
extern int ruserok_af (__const char *__rhost, int __suser,
		       __const char *__remuser, __const char *__locuser,
		       sa_family_t __af) __THROW;

/* 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;

/* 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;
#endif


/* Extension from POSIX.1g.  */
#ifdef	__USE_POSIX
/* Structure to contain information about address of a service provider.  */
struct addrinfo
{
  int ai_flags;			/* Input flags.  */
  int ai_family;		/* Protocol family for socket.  */
  int ai_socktype;		/* Socket type.  */
  int ai_protocol;		/* Protocol for socket.  */
  socklen_t ai_addrlen;		/* Length of socket address.  */
  struct sockaddr *ai_addr;	/* Socket address for socket.  */
  char *ai_canonname;		/* Canonical name for service location.  */
  struct addrinfo *ai_next;	/* Pointer to next in list.  */
};

# ifdef __USE_GNU
/* Structure used as control block for asynchronous lookup.  */
struct gaicb
{
  const char *ar_name;		/* Name to look up.  */
  const char *ar_service;	/* Service name.  */
  const struct addrinfo *ar_request; /* Additional request specification.  */
  struct addrinfo *ar_result;	/* Pointer to result.  */
  /* The following are internal elements.  */
  int __return;
  int __unused[5];
};

/* Lookup mode.  */
#  define GAI_WAIT	0
#  define GAI_NOWAIT	1
# endif

/* Possible values for `ai_flags' field in `addrinfo' structure.  */
# define AI_PASSIVE	0x0001	/* Socket address is intended for `bind'.  */
# define AI_CANONNAME	0x0002	/* Request for canonical name.  */
# define AI_NUMERICHOST	0x0004	/* Don't use name resolution.  */

/* Error values for `getaddrinfo' function.  */
# define EAI_BADFLAGS	  -1	/* Invalid value for `ai_flags' field.  */
# define EAI_NONAME	  -2	/* NAME or SERVICE is unknown.  */
# define EAI_AGAIN	  -3	/* Temporary failure in name resolution.  */
# define EAI_FAIL	  -4	/* Non-recoverable failure in name res.  */
# define EAI_NODATA	  -5	/* No address associated with NAME.  */
# define EAI_FAMILY	  -6	/* `ai_family' not supported.  */
# define EAI_SOCKTYPE	  -7	/* `ai_socktype' not supported.  */
# define EAI_SERVICE	  -8	/* SERVICE not supported for `ai_socktype'.  */
# define EAI_ADDRFAMILY	  -9	/* Address family for NAME not supported.  */
# define EAI_MEMORY	  -10	/* Memory allocation failure.  */
# define EAI_SYSTEM	  -11	/* System error returned in `errno'.  */
# ifdef __USE_GNU
#  define EAI_INPROGRESS  -100	/* Processing request in progress.  */
#  define EAI_CANCELED	  -101	/* Request canceled.  */
#  define EAI_NOTCANCELED -102	/* Request not canceled.  */
#  define EAI_ALLDONE	  -103	/* All requests done.  */
#  define EAI_INTR	  -104	/* Interrupted by a signal.  */
# endif

# define NI_MAXHOST      1025
# define NI_MAXSERV      32

# define NI_NUMERICHOST	1	/* Don't try to look up hostname.  */
# define NI_NUMERICSERV 2	/* Don't convert port number to name.  */
# define NI_NOFQDN	4	/* Only return nodename portion.  */
# define NI_NAMEREQD	8	/* Don't return numeric addresses.  */
# 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.  */
extern int getaddrinfo (__const char *__restrict __name,
			__const char *__restrict __service,
			__const struct addrinfo *__restrict __req,
			struct addrinfo **__restrict __pai) __THROW;

/* Free `addrinfo' structure AI including associated storage.  */
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.  */
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;

# 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.  */
extern int getaddrinfo_a (int __mode, struct gaicb *__list[__restrict_arr],
			  int __ent, struct sigevent *__restrict __sig)
     __THROW;

/* 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.  */
extern int gai_suspend (__const struct gaicb *__const __list[], int __ent,
			__const struct timespec *__timeout) __THROW;

/* 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 */

__END_DECLS

#endif	/* netdb.h */

Re: nfs-utils 1.1.3 and glibc 2.2

[Chuck Lever]

On Tue, Jul 29, 2008 at 5:22 AM, Gabor Z. Papp <gzp-2g/1Y3AqmNE@public.gmane.org> wrote:
> | > make[2]: Entering directory
> | > `/home/gzp/src/nfs-utils-1.1.3/utils/mount'
> | > gcc -DHAVE_CONFIG_H -I. -I../../support/include
> | > -I../../support/include -D_GNU_SOURCE -Wall -Wstrict-prototypes  -pipe
> | > -g -O2 -MT network.o -MD -MP -MF .deps/network.Tpo -c -o network.o network.c
> | > network.c: In function 'nfs_name_to_address':
> | > network.c:154: error: 'AI_ADDRCONFIG' undeclared (first use in this function)
> | > network.c:154: error: (Each undeclared identifier is reported only once
> | > network.c:154: error: for each function it appears in.)
> | > network.c:160: error: 'AI_V4MAPPED' undeclared (first use in this function)
> | > network.c:160: error: 'AI_ALL' undeclared (first use in this function)
> | > make[2]: *** [network.o] Error 1
> | > make[2]: Leaving directory `/home/gzp/src/nfs-utils-1.1.3/utils/mount'
> | >
> | > 1.1.2 compiles fine.
>
> | Can you tell me what distribution you are using?
>
> No distro.
>
> | In my distribution (Fedora), these macros, along with getaddrinfo(3),
> | are defined in /usr/include/netdb.h.  utils/mount/network.c appears to
> | include this file directly, so I am still puzzled by this.
>
> I'll attach the glibc 2.2.5 netdb.h, and grep AI_ in /usr/include
> returns only this:
>
> $ grep AI_ *
> netdb.h:#  define GAI_WAIT      0
> netdb.h:#  define GAI_NOWAIT    1
> netdb.h:# define AI_PASSIVE     0x0001  /* Socket address is intended for `bind'.  */
> netdb.h:# define AI_CANONNAME   0x0002  /* Request for canonical name.  */
> netdb.h:# define AI_NUMERICHOST 0x0004  /* Don't use name resolution. */
> netdb.h:# define EAI_BADFLAGS     -1    /* Invalid value for `ai_flags' field.  */
> netdb.h:# define EAI_NONAME       -2    /* NAME or SERVICE is unknown.  */
> netdb.h:# define EAI_AGAIN        -3    /* Temporary failure in name resolution.  */
> netdb.h:# define EAI_FAIL         -4    /* Non-recoverable failure in name res.  */
> netdb.h:# define EAI_NODATA       -5    /* No address associated with NAME.  */
> netdb.h:# define EAI_FAMILY       -6    /* `ai_family' not supported. */
> netdb.h:# define EAI_SOCKTYPE     -7    /* `ai_socktype' not supported.  */
> netdb.h:# define EAI_SERVICE      -8    /* SERVICE not supported for `ai_socktype'.  */
> netdb.h:# define EAI_ADDRFAMILY   -9    /* Address family for NAME no tsupported.  */
> netdb.h:# define EAI_MEMORY       -10   /* Memory allocation failure. */
> netdb.h:# define EAI_SYSTEM       -11   /* System error returned in `errno'.  */
> netdb.h:#  define EAI_INPROGRESS  -100  /* Processing request in progress.  */
> netdb.h:#  define EAI_CANCELED    -101  /* Request canceled.  */
> netdb.h:#  define EAI_NOTCANCELED -102  /* Request not canceled.  */
> netdb.h:#  define EAI_ALLDONE     -103  /* All requests done.  */
> netdb.h:#  define EAI_INTR        -104  /* Interrupted by a signal. */
> netdb.h:/* Enqueue ENT requests from the LIST.  If MODE is GAI_WAIT wait until all
> netdb.h:   requests are handled.  If WAIT is GAI_NOWAIT return immediately after

I downloaded glibc-2.2.5 yesterday to take a look.

There is an "interesting" comment in glibc-2.2.5/include/netdb.h,
followed by all the missing AI_ macro definitions:

"/* The following declarations and definitions have been removed from
   the public header since we don't want people to use them.  */"

All of these are now included in /usr/include/netdb.h with no
qualification whatever, so at some point the glibc maintainers changed
their mind about this.

Likely the correct fix for this is to restore the old
nfs_gethostbyname() and have ./configure detect the presence of these
AI_ macros.  If they are not present, use the original function.  If
they are, use the new one.

Alternately, we can define these in utils/mount/network.c if they are
not already defined.  This would work if the actual value of these
macros has not changed over time.

I'll post a proposed fix as soon as I can, but some research will be
required to figure out why these were banned originally.

-- 
Chuck Lever