/* "net_db.c" network database support
- * Copyright (C) 1995,1996,1997,1998,1999,2000,2001 Free Software Foundation, Inc.
- *
+ * Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2006, 2009,
+ * 2010, 2011, 2012, 2013 Free Software Foundation, Inc.
+ *
* This 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.
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 3 of
+ * the License, or (at your option) any later version.
*
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * This 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 this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301 USA
*/
*/
\f
-#if HAVE_CONFIG_H
+#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
+#include <verify.h>
#include <errno.h>
-#include "libguile/_scm.h"
-#include "libguile/feature.h"
-#include "libguile/strings.h"
-#include "libguile/vectors.h"
-
-#include "libguile/validate.h"
-#include "libguile/net_db.h"
-
#ifdef HAVE_STRING_H
#include <string.h>
#endif
#include <sys/types.h>
-#ifdef HAVE_WINSOCK2_H
-#include <winsock2.h>
-#else
#include <sys/socket.h>
#include <netdb.h>
#include <netinet/in.h>
#include <arpa/inet.h>
-#endif
-#ifdef __MINGW32__
-#include "win32-socket.h"
-#endif
+#include "libguile/_scm.h"
+#include "libguile/feature.h"
+#include "libguile/strings.h"
+#include "libguile/vectors.h"
+#include "libguile/dynwind.h"
-#if !defined (HAVE_H_ERRNO) && !defined (__MINGW32__) && !defined (__CYGWIN__)
-/* h_errno not found in netdb.h, maybe this will help. */
-extern int h_errno;
-#endif
+#include "libguile/validate.h"
+#include "libguile/net_db.h"
+#include "libguile/socket.h"
-\f
+
+#if defined (HAVE_H_ERRNO)
+/* Only wrap gethostbyname / gethostbyaddr if h_errno is available. */
+
+#if defined HAVE_HSTRERROR && !HAVE_DECL_HSTRERROR
+/* Some OSes, such as Tru64 5.1b, lack a declaration for hstrerror(3). */
+extern const char *hstrerror (int);
+#endif
SCM_SYMBOL (scm_host_not_found_key, "host-not-found");
SCM_SYMBOL (scm_try_again_key, "try-again");
#ifdef HAVE_HSTRERROR
errmsg = (const char *) hstrerror (h_errno);
#endif
- scm_error (key, subr, errmsg, scm_cons (bad_value, SCM_EOL), SCM_EOL);
+ scm_error (key, subr, errmsg, SCM_BOOL_F, SCM_EOL);
}
}
struct in_addr inad;
char **argv;
int i = 0;
+
if (SCM_UNBNDP (host))
{
#ifdef HAVE_GETHOSTENT
return SCM_BOOL_F;
}
}
- else if (SCM_STRINGP (host))
+ else if (scm_is_string (host))
{
- entry = gethostbyname (SCM_STRING_CHARS (host));
+ char *str = scm_to_locale_string (host);
+ entry = gethostbyname (str);
+ free (str);
}
else
{
- inad.s_addr = htonl (SCM_NUM2ULONG (1, host));
+ inad.s_addr = htonl (scm_to_ulong (host));
entry = gethostbyaddr ((char *) &inad, sizeof (inad), AF_INET);
}
+
if (!entry)
scm_resolv_error (FUNC_NAME, host);
- SCM_VECTOR_SET(result, 0, scm_mem2string (entry->h_name, strlen (entry->h_name)));
- SCM_VECTOR_SET(result, 1, scm_makfromstrs (-1, entry->h_aliases));
- SCM_VECTOR_SET(result, 2, scm_from_int (entry->h_addrtype));
- SCM_VECTOR_SET(result, 3, scm_from_int (entry->h_length));
+ SCM_SIMPLE_VECTOR_SET(result, 0, scm_from_locale_string (entry->h_name));
+ SCM_SIMPLE_VECTOR_SET(result, 1, scm_makfromstrs (-1, entry->h_aliases));
+ SCM_SIMPLE_VECTOR_SET(result, 2, scm_from_int (entry->h_addrtype));
+ SCM_SIMPLE_VECTOR_SET(result, 3, scm_from_int (entry->h_length));
if (sizeof (struct in_addr) != entry->h_length)
{
- SCM_VECTOR_SET(result, 4, SCM_BOOL_F);
+ SCM_SIMPLE_VECTOR_SET(result, 4, SCM_BOOL_F);
return result;
}
for (argv = entry->h_addr_list; argv[i]; i++);
while (i--)
{
inad = *(struct in_addr *) argv[i];
- lst = scm_cons (scm_ulong2num (ntohl (inad.s_addr)), lst);
+ lst = scm_cons (scm_from_ulong (ntohl (inad.s_addr)), lst);
}
- SCM_VECTOR_SET(result, 4, lst);
+ SCM_SIMPLE_VECTOR_SET(result, 4, lst);
return result;
}
#undef FUNC_NAME
+#endif /* HAVE_H_ERRNO */
+
/* In all subsequent getMUMBLE functions, when we're called with no
arguments, we're supposed to traverse the tables entry by entry.
"given.")
#define FUNC_NAME s_scm_getnet
{
- SCM result = scm_c_make_vector (4, SCM_UNSPECIFIED);
+ SCM result = scm_c_make_vector (4, SCM_UNSPECIFIED);
struct netent *entry;
+ int eno;
if (SCM_UNBNDP (net))
{
return SCM_BOOL_F;
}
}
- else if (SCM_STRINGP (net))
+ else if (scm_is_string (net))
{
- entry = getnetbyname (SCM_STRING_CHARS (net));
+ char *str = scm_to_locale_string (net);
+ entry = getnetbyname (str);
+ eno = errno;
+ free (str);
}
else
{
- unsigned long netnum;
- netnum = SCM_NUM2ULONG (1, net);
+ unsigned long netnum = scm_to_ulong (net);
entry = getnetbyaddr (netnum, AF_INET);
+ eno = errno;
}
+
if (!entry)
- SCM_SYSERROR_MSG ("no such network ~A", scm_list_1 (net), errno);
- SCM_VECTOR_SET(result, 0, scm_mem2string (entry->n_name, strlen (entry->n_name)));
- SCM_VECTOR_SET(result, 1, scm_makfromstrs (-1, entry->n_aliases));
- SCM_VECTOR_SET(result, 2, scm_from_int (entry->n_addrtype));
- SCM_VECTOR_SET(result, 3, scm_from_ulong (entry->n_net));
+ SCM_SYSERROR_MSG ("no such network ~A", scm_list_1 (net), eno);
+
+ SCM_SIMPLE_VECTOR_SET(result, 0, scm_from_locale_string (entry->n_name));
+ SCM_SIMPLE_VECTOR_SET(result, 1, scm_makfromstrs (-1, entry->n_aliases));
+ SCM_SIMPLE_VECTOR_SET(result, 2, scm_from_int (entry->n_addrtype));
+ SCM_SIMPLE_VECTOR_SET(result, 3, scm_from_ulong (entry->n_net));
return result;
}
#undef FUNC_NAME
#endif
-#if defined (HAVE_GETPROTOENT) || defined (__MINGW32__)
+#if defined (HAVE_GETPROTOENT)
SCM_DEFINE (scm_getproto, "getproto", 0, 1, 0,
(SCM protocol),
"@deffnx {Scheme Procedure} getprotobyname name\n"
"@code{getprotoent} (see below) if no arguments are supplied.")
#define FUNC_NAME s_scm_getproto
{
- SCM result = scm_c_make_vector (3, SCM_UNSPECIFIED);
-
+ SCM result = scm_c_make_vector (3, SCM_UNSPECIFIED);
struct protoent *entry;
+ int eno;
+
if (SCM_UNBNDP (protocol))
{
entry = getprotoent ();
return SCM_BOOL_F;
}
}
- else if (SCM_STRINGP (protocol))
+ else if (scm_is_string (protocol))
{
- entry = getprotobyname (SCM_STRING_CHARS (protocol));
+ char *str = scm_to_locale_string (protocol);
+ entry = getprotobyname (str);
+ eno = errno;
+ free (str);
}
else
{
- unsigned long protonum;
- protonum = SCM_NUM2ULONG (1, protocol);
+ unsigned long protonum = scm_to_ulong (protocol);
entry = getprotobynumber (protonum);
+ eno = errno;
}
+
if (!entry)
- SCM_SYSERROR_MSG ("no such protocol ~A", scm_list_1 (protocol), errno);
- SCM_VECTOR_SET(result, 0, scm_mem2string (entry->p_name, strlen (entry->p_name)));
- SCM_VECTOR_SET(result, 1, scm_makfromstrs (-1, entry->p_aliases));
- SCM_VECTOR_SET(result, 2, scm_from_int (entry->p_proto));
+ SCM_SYSERROR_MSG ("no such protocol ~A", scm_list_1 (protocol), eno);
+
+ SCM_SIMPLE_VECTOR_SET(result, 0, scm_from_locale_string (entry->p_name));
+ SCM_SIMPLE_VECTOR_SET(result, 1, scm_makfromstrs (-1, entry->p_aliases));
+ SCM_SIMPLE_VECTOR_SET(result, 2, scm_from_int (entry->p_proto));
return result;
}
#undef FUNC_NAME
#endif
-#if defined (HAVE_GETSERVENT) || defined (__MINGW32__)
+#if defined (HAVE_GETSERVENT)
static SCM
scm_return_entry (struct servent *entry)
{
SCM result = scm_c_make_vector (4, SCM_UNSPECIFIED);
- SCM_VECTOR_SET(result, 0, scm_mem2string (entry->s_name, strlen (entry->s_name)));
- SCM_VECTOR_SET(result, 1, scm_makfromstrs (-1, entry->s_aliases));
- SCM_VECTOR_SET(result, 2, scm_from_uint16 (ntohs (entry->s_port)));
- SCM_VECTOR_SET(result, 3, scm_mem2string (entry->s_proto, strlen (entry->s_proto)));
+ SCM_SIMPLE_VECTOR_SET(result, 0, scm_from_locale_string (entry->s_name));
+ SCM_SIMPLE_VECTOR_SET(result, 1, scm_makfromstrs (-1, entry->s_aliases));
+ SCM_SIMPLE_VECTOR_SET(result, 2, scm_from_uint16 (ntohs (entry->s_port)));
+ SCM_SIMPLE_VECTOR_SET(result, 3, scm_from_locale_string (entry->s_proto));
return result;
}
#define FUNC_NAME s_scm_getserv
{
struct servent *entry;
+ char *protoname;
+ int eno;
+
if (SCM_UNBNDP (name))
{
entry = getservent ();
}
return scm_return_entry (entry);
}
- SCM_VALIDATE_STRING (2, protocol);
- if (SCM_STRINGP (name))
+
+ scm_dynwind_begin (0);
+
+ protoname = scm_to_locale_string (protocol);
+ scm_dynwind_free (protoname);
+
+ if (scm_is_string (name))
{
- entry = getservbyname (SCM_STRING_CHARS (name),
- SCM_STRING_CHARS (protocol));
+ char *str = scm_to_locale_string (name);
+ entry = getservbyname (str, protoname);
+ eno = errno;
+ free (str);
}
else
{
- entry = getservbyport (htons (scm_to_int (name)),
- SCM_STRING_CHARS (protocol));
+ entry = getservbyport (htons (scm_to_int (name)), protoname);
+ eno = errno;
}
+
if (!entry)
- SCM_SYSERROR_MSG("no such service ~A", scm_list_1 (name), errno);
+ SCM_SYSERROR_MSG("no such service ~A", scm_list_1 (name), eno);
+
+ scm_dynwind_end ();
return scm_return_entry (entry);
}
#undef FUNC_NAME
#undef FUNC_NAME
#endif
-#if defined (HAVE_SETPROTOENT) && defined (HAVE_ENDPROTOENT) || defined (__MINGW32__)
+#if defined (HAVE_SETPROTOENT) && defined (HAVE_ENDPROTOENT)
SCM_DEFINE (scm_setproto, "setproto", 0, 1, 0,
(SCM stayopen),
"If @var{stayopen} is omitted, this is equivalent to @code{endprotoent}.\n"
#undef FUNC_NAME
#endif
-#if defined (HAVE_SETSERVENT) && defined (HAVE_ENDSERVENT) || defined (__MINGW32__)
+#if defined (HAVE_SETSERVENT) && defined (HAVE_ENDSERVENT)
SCM_DEFINE (scm_setserv, "setserv", 0, 1, 0,
(SCM stayopen),
"If @var{stayopen} is omitted, this is equivalent to @code{endservent}.\n"
#undef FUNC_NAME
#endif
+\f
+/* Protocol-independent name resolution with getaddrinfo(3) & co. */
+
+SCM_SYMBOL (sym_getaddrinfo_error, "getaddrinfo-error");
+
+/* Make sure the `AI_*' flags can be stored as INUMs. */
+verify (AI_ALL < SCM_MOST_POSITIVE_FIXNUM);
+
+/* Valid values for the `ai_flags' to `struct addrinfo'. */
+SCM_VARIABLE_INIT (sym_ai_passive, "AI_PASSIVE",
+ SCM_I_MAKINUM (AI_PASSIVE));
+SCM_VARIABLE_INIT (sym_ai_canonname, "AI_CANONNAME",
+ SCM_I_MAKINUM (AI_CANONNAME));
+SCM_VARIABLE_INIT (sym_ai_numerichost, "AI_NUMERICHOST",
+ SCM_I_MAKINUM (AI_NUMERICHOST));
+SCM_VARIABLE_INIT (sym_ai_numericserv, "AI_NUMERICSERV",
+ SCM_I_MAKINUM (AI_NUMERICSERV));
+SCM_VARIABLE_INIT (sym_ai_v4mapped, "AI_V4MAPPED",
+ SCM_I_MAKINUM (AI_V4MAPPED));
+SCM_VARIABLE_INIT (sym_ai_all, "AI_ALL",
+ SCM_I_MAKINUM (AI_ALL));
+SCM_VARIABLE_INIT (sym_ai_addrconfig, "AI_ADDRCONFIG",
+ SCM_I_MAKINUM (AI_ADDRCONFIG));
+
+/* Return a Scheme vector whose elements correspond to the fields of C_AI,
+ ignoring the `ai_next' field. This function is not exported because the
+ definition of `struct addrinfo' is provided by Gnulib. */
+static SCM
+scm_from_addrinfo (const struct addrinfo *c_ai)
+{
+ SCM ai;
+
+ /* Note: The indices here must be kept synchronized with those used by the
+ `addrinfo:' procedures in `networking.scm'. */
+
+ ai = scm_c_make_vector (6, SCM_UNDEFINED);
+ SCM_SIMPLE_VECTOR_SET (ai, 0, scm_from_int (c_ai->ai_flags));
+ SCM_SIMPLE_VECTOR_SET (ai, 1, scm_from_int (c_ai->ai_family));
+ SCM_SIMPLE_VECTOR_SET (ai, 2, scm_from_int (c_ai->ai_socktype));
+ SCM_SIMPLE_VECTOR_SET (ai, 3, scm_from_int (c_ai->ai_protocol));
+ SCM_SIMPLE_VECTOR_SET (ai, 4,
+ scm_from_sockaddr (c_ai->ai_addr, c_ai->ai_addrlen));
+ SCM_SIMPLE_VECTOR_SET (ai, 5,
+ c_ai->ai_canonname != NULL
+ ? scm_from_locale_string (c_ai->ai_canonname)
+ : SCM_BOOL_F);
+
+ return ai;
+}
-void
+SCM_DEFINE (scm_getaddrinfo, "getaddrinfo", 1, 5, 0,
+ (SCM name, SCM service, SCM hint_flags, SCM hint_family,
+ SCM hint_socktype, SCM hint_protocol),
+ "Return a list of @code{addrinfo} structures containing "
+ "a socket address and associated information for host @var{name} "
+ "and/or @var{service} to be used in creating a socket with "
+ "which to address the specified service.\n\n"
+ "@example\n"
+ "(let* ((ai (car (getaddrinfo \"www.gnu.org\" \"http\")))\n"
+ " (s (socket (addrinfo:fam ai) (addrinfo:socktype ai)\n"
+ " (addrinfo:protocol ai))))\n"
+ " (connect s (addrinfo:addr ai))\n"
+ " s)\n"
+ "@end example\n\n"
+ "When @var{service} is omitted or is @code{#f}, return "
+ "network-level addresses for @var{name}. When @var{name} "
+ "is @code{#f} @var{service} must be provided and service "
+ "locations local to the caller are returned.\n"
+ "\n"
+ "Additional hints can be provided. When specified, "
+ "@var{hint_flags} should be a bitwise-or of zero or more "
+ "constants among the following:\n\n"
+ "@table @code\n"
+ "@item AI_PASSIVE\n"
+ "Socket address is intended for @code{bind}.\n\n"
+ "@item AI_CANONNAME\n"
+ "Request for canonical host name, available via "
+ "@code{addrinfo:canonname}. This makes sense mainly when "
+ "DNS lookups are involved.\n\n"
+ "@item AI_NUMERICHOST\n"
+ "Specifies that @var{name} is a numeric host address string "
+ "(e.g., @code{\"127.0.0.1\"}), meaning that name resolution "
+ "will not be used.\n\n"
+ "@item AI_NUMERICSERV\n"
+ "Likewise, specifies that @var{service} is a numeric port "
+ "string (e.g., @code{\"80\"}).\n\n"
+ "@item AI_ADDRCONFIG\n"
+ "Return only addresses configured on the local system. It is "
+ "highly recommended to provide this flag when the returned "
+ "socket addresses are to be used to make connections; "
+ "otherwise, some of the returned addresses could be unreachable "
+ "or use a protocol that is not supported.\n\n"
+ "@item AI_V4MAPPED\n"
+ "When looking up IPv6 addresses, return mapped "
+ "IPv4 addresses if there is no IPv6 address available at all.\n\n"
+ "@item AI_ALL\n"
+ "If this flag is set along with @code{AI_V4MAPPED} when looking "
+ "up IPv6 addresses, return all IPv6 addresses "
+ "as well as all IPv4 addresses, the latter mapped to IPv6 "
+ "format.\n"
+ "@end table\n\n"
+ "When given, @var{hint_family} should specify the requested "
+ "address family, e.g., @code{AF_INET6}. Similarly, "
+ "@var{hint_socktype} should specify the requested socket type "
+ "(e.g., @code{SOCK_DGRAM}), and @var{hint_protocol} should "
+ "specify the requested protocol (its value is interpretered "
+ "as in calls to @code{socket}).\n"
+ "\n"
+ "On error, an exception with key @code{getaddrinfo-error} is "
+ "thrown, with an error code (an integer) as its argument:\n\n"
+ "@example\n"
+ "(catch 'getaddrinfo-error\n"
+ " (lambda ()\n"
+ " (getaddrinfo \"www.gnu.org\" \"gopher\"))\n"
+ " (lambda (key errcode)\n"
+ " (cond ((= errcode EAI_SERVICE)\n"
+ " (display \"doesn't know about Gopher!\\n\"))\n"
+ " ((= errcode EAI_NONAME)\n"
+ " (display \"www.gnu.org not found\\n\"))\n"
+ " (else\n"
+ " (format #t \"something wrong: ~a\\n\"\n"
+ " (gai-strerror errcode))))))\n"
+ "@end example\n"
+ "\n"
+ "Error codes are:\n\n"
+ "@table @code\n"
+ "@item EAI_AGAIN\n"
+ "The name or service could not be resolved at this time. Future "
+ "attempts may succeed.\n\n"
+ "@item EAI_BADFLAGS\n"
+ "@var{hint_flags} contains an invalid value.\n\n"
+ "@item EAI_FAIL\n"
+ "A non-recoverable error occurred when attempting to "
+ "resolve the name.\n\n"
+ "@item EAI_FAMILY\n"
+ "@var{hint_family} was not recognized.\n\n"
+ "@item EAI_NONAME\n"
+ "Either @var{name} does not resolve for the supplied parameters, "
+ "or neither @var{name} nor @var{service} were supplied.\n\n"
+
+ /* See `sysdeps/posix/getaddrinfo.c' in the GNU libc, and
+ <http://www.opensource.apple.com/source/Libinfo/Libinfo-324.1/lookup.subproj/netdb.h>,
+ for details on EAI_NODATA. */
+ "@item EAI_NODATA\n"
+ "This non-POSIX error code can be returned on some systems (GNU "
+ "and Darwin, at least), for example when @var{name} is known "
+ "but requests that were made turned out no data. Error handling\n"
+ "code should be prepared to handle it when it is defined.\n\n"
+ "@item EAI_SERVICE\n"
+ "@var{service} was not recognized for the specified socket type.\n\n"
+ "@item EAI_SOCKTYPE\n"
+ "@var{hint_socktype} was not recognized.\n\n"
+ "@item EAI_SYSTEM\n"
+ "A system error occurred. In C, the error code can be found in "
+ "@code{errno}; this value is not accessible from Scheme, but in\n"
+ "practice it provides little information about the actual error "
+ "cause.\n\n" /* see <http://bugs.gnu.org/13958>. */
+ "@end table\n"
+ "\n"
+ "Users are encouraged to read the "
+ "@url{http://www.opengroup.org/onlinepubs/9699919799/functions/getaddrinfo.html,"
+ "POSIX specification} for more details.\n")
+#define FUNC_NAME s_scm_getaddrinfo
+{
+ int err;
+ char *c_name, *c_service;
+ struct addrinfo c_hints, *c_result;
+ SCM result = SCM_EOL;
+
+ if (scm_is_true (name))
+ SCM_VALIDATE_STRING (SCM_ARG1, name);
+
+ if (!SCM_UNBNDP (service) && scm_is_true (service))
+ SCM_VALIDATE_STRING (SCM_ARG2, service);
+
+ scm_dynwind_begin (0);
+
+ if (scm_is_string (name))
+ {
+ c_name = scm_to_locale_string (name);
+ scm_dynwind_free (c_name);
+ }
+ else
+ c_name = NULL;
+
+ if (scm_is_string (service))
+ {
+ c_service = scm_to_locale_string (service);
+ scm_dynwind_free (c_service);
+ }
+ else
+ c_service = NULL;
+
+ memset (&c_hints, 0, sizeof (c_hints));
+ if (!SCM_UNBNDP (hint_flags))
+ {
+ c_hints.ai_flags = scm_to_int (hint_flags);
+ if (!SCM_UNBNDP (hint_family))
+ {
+ c_hints.ai_family = scm_to_int (hint_family);
+ if (!SCM_UNBNDP (hint_socktype))
+ {
+ c_hints.ai_socktype = scm_to_int (hint_socktype);
+ if (!SCM_UNBNDP (hint_family))
+ c_hints.ai_family = scm_to_int (hint_family);
+ }
+ }
+ }
+
+ err = getaddrinfo (c_name, c_service, &c_hints, &c_result);
+ if (err == 0)
+ {
+ SCM *prev_addr;
+ struct addrinfo *a;
+
+ for (prev_addr = &result, a = c_result;
+ a != NULL;
+ a = a->ai_next, prev_addr = SCM_CDRLOC (*prev_addr))
+ *prev_addr = scm_list_1 (scm_from_addrinfo (a));
+
+ freeaddrinfo (c_result);
+ }
+ else
+ scm_throw (sym_getaddrinfo_error, scm_list_1 (scm_from_int (err)));
+
+ scm_dynwind_end ();
+
+ return result;
+}
+#undef FUNC_NAME
+
+/* Make sure the `EAI_*' flags can be stored as INUMs. */
+verify (EAI_BADFLAGS < SCM_MOST_POSITIVE_FIXNUM);
+
+/* Error codes returned by `getaddrinfo'. */
+SCM_VARIABLE_INIT (sym_eai_badflags, "EAI_BADFLAGS",
+ SCM_I_MAKINUM (EAI_BADFLAGS));
+SCM_VARIABLE_INIT (sym_eai_noname, "EAI_NONAME",
+ SCM_I_MAKINUM (EAI_NONAME));
+SCM_VARIABLE_INIT (sym_eai_again, "EAI_AGAIN",
+ SCM_I_MAKINUM (EAI_AGAIN));
+SCM_VARIABLE_INIT (sym_eai_fail, "EAI_FAIL",
+ SCM_I_MAKINUM (EAI_FAIL));
+SCM_VARIABLE_INIT (sym_eai_family, "EAI_FAMILY",
+ SCM_I_MAKINUM (EAI_FAMILY));
+SCM_VARIABLE_INIT (sym_eai_socktype, "EAI_SOCKTYPE",
+ SCM_I_MAKINUM (EAI_SOCKTYPE));
+SCM_VARIABLE_INIT (sym_eai_service, "EAI_SERVICE",
+ SCM_I_MAKINUM (EAI_SERVICE));
+SCM_VARIABLE_INIT (sym_eai_memory, "EAI_MEMORY",
+ SCM_I_MAKINUM (EAI_MEMORY));
+SCM_VARIABLE_INIT (sym_eai_system, "EAI_SYSTEM",
+ SCM_I_MAKINUM (EAI_SYSTEM));
+SCM_VARIABLE_INIT (sym_eai_overflow, "EAI_OVERFLOW",
+ SCM_I_MAKINUM (EAI_OVERFLOW));
+
+/* The following values are GNU extensions. */
+#ifdef EAI_NODATA
+SCM_VARIABLE_INIT (sym_eai_nodata, "EAI_NODATA",
+ SCM_I_MAKINUM (EAI_NODATA));
+#endif
+#ifdef EAI_ADDRFAMILY
+SCM_VARIABLE_INIT (sym_eai_addrfamily, "EAI_ADDRFAMILY",
+ SCM_I_MAKINUM (EAI_ADDRFAMILY));
+#endif
+#ifdef EAI_INPROGRESS
+SCM_VARIABLE_INIT (sym_eai_inprogress, "EAI_INPROGRESS",
+ SCM_I_MAKINUM (EAI_INPROGRESS));
+#endif
+#ifdef EAI_CANCELED
+SCM_VARIABLE_INIT (sym_eai_canceled, "EAI_CANCELED",
+ SCM_I_MAKINUM (EAI_CANCELED));
+#endif
+#ifdef EAI_NOTCANCELED
+SCM_VARIABLE_INIT (sym_eai_notcanceled, "EAI_NOTCANCELED",
+ SCM_I_MAKINUM (EAI_NOTCANCELED));
+#endif
+#ifdef EAI_ALLDONE
+SCM_VARIABLE_INIT (sym_eai_alldone, "EAI_ALLDONE",
+ SCM_I_MAKINUM (EAI_ALLDONE));
+#endif
+#ifdef EAI_INTR
+SCM_VARIABLE_INIT (sym_eai_intr, "EAI_INTR",
+ SCM_I_MAKINUM (EAI_INTR));
+#endif
+#ifdef EAI_IDN_ENCODE
+SCM_VARIABLE_INIT (sym_eai_idn_encode, "EAI_IDN_ENCODE",
+ SCM_I_MAKINUM (EAI_IDN_ENCODE));
+#endif
+
+SCM_DEFINE (scm_gai_strerror, "gai-strerror", 1, 0, 0,
+ (SCM error),
+ "Return a string describing @var{error}, an integer error code "
+ "returned by @code{getaddrinfo}.")
+#define FUNC_NAME s_scm_gai_strerror
+{
+ return scm_from_locale_string (gai_strerror (scm_to_int (error)));
+}
+#undef FUNC_NAME
+
+/* TODO: Add a getnameinfo(3) wrapper. */
+
+\f
+void
scm_init_net_db ()
{
scm_add_feature ("net-db");
HCoop / bpt / guile.git / blobdiff