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-rw-r--r--missing/getaddrinfo.c605
1 files changed, 0 insertions, 605 deletions
diff --git a/missing/getaddrinfo.c b/missing/getaddrinfo.c
deleted file mode 100644
index f6f2916..0000000
--- a/missing/getaddrinfo.c
+++ /dev/null
@@ -1,605 +0,0 @@
-/*
- * Copyright (c) 2001, 02 Motoyuki Kasahara
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the project nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-/*
- * This program provides getaddrinfo() and getnameinfo() described in
- * RFC2133, 2553 and 3493. These functions are mainly used for IPv6
- * application to resolve hostname or address.
- *
- * This program is designed to be working on traditional IPv4 systems
- * which don't have those functions. Therefore, this implementation
- * supports IPv4 only.
- *
- * This program is useful for application which should support both IPv6
- * and traditional IPv4 systems. Use genuine getaddrinfo() and getnameinfo()
- * provided by system if the system supports IPv6. Otherwise, use this
- * implementation.
- *
- * This program is intended to be used in combination with GNU Autoconf.
- *
- * This program also provides freeaddrinfo() and gai_strerror().
- *
- * To use this program in your application, insert the following lines to
- * C source files after including `sys/types.h', `sys/socket.h' and
- * `netdb.h'. `getaddrinfo.h' defines `struct addrinfo' and AI_, NI_,
- * EAI_ macros.
- *
- * #ifndef HAVE_GETADDRINFO
- * #include "getaddrinfo.h"
- * #endif
- *
- * Restriction:
- * getaddrinfo() and getnameinfo() of this program are NOT thread
- * safe, unless the cpp macro ENABLE_PTHREAD is defined.
- */
-
-/*
- * Add the following code to your configure.ac (or configure.in).
- * AC_C_CONST
- * AC_HEADER_STDC
- * AC_CHECK_HEADERS(string.h memory.h stdlib.h)
- * AC_CHECK_FUNCS(memcpy)
- * AC_REPLACE_FUNCS(memset)
- * AC_TYPE_SOCKLEN_T
- * AC_TYPE_IN_PORT_T
- * AC_DECL_H_ERRNO
- *
- * AC_CHECK_FUNCS(getaddrinfo getnameinfo)
- * if test "$ac_cv_func_getaddrinfo$ac_cv_func_getnameinfo" != yesyes ; then
- * LIBOBJS="$LIBOBJS getaddrinfo.$ac_objext"
- * fi
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include <sys/types.h>
-#include <stdio.h>
-
-#ifdef WIN32
-#include <time.h>
-#include <winsock2.h>
-#ifdef DO_IPV6
-#include <ws2tcpip.h>
-#endif /* DO_IPV6 */
-#include <windows.h>
-#else
-#include <sys/socket.h>
-#endif
-
-
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include <netdb.h>
-
-#if defined(STDC_HEADERS) || defined(HAVE_STRING_H)
-#include <string.h>
-#if !defined(STDC_HEADERS) && defined(HAVE_MEMORY_H)
-#include <memory.h>
-#endif /* not STDC_HEADERS and HAVE_MEMORY_H */
-#else /* not STDC_HEADERS and not HAVE_STRING_H */
-#include <strings.h>
-#endif /* not STDC_HEADERS and not HAVE_STRING_H */
-
-#ifdef HAVE_STDLIB_H
-#include <stdlib.h>
-#endif
-
-#ifdef ENABLE_PTHREAD
-#include <pthread.h>
-#endif
-
-#ifdef ENABLE_NLS
-#include <libintl.h>
-#endif
-
-#ifndef HAVE_MEMCPY
-#define memcpy(d, s, n) bcopy((s), (d), (n))
-#ifdef __STDC__
-void *memchr(const void *, int, size_t);
-int memcmp(const void *, const void *, size_t);
-void *memmove(void *, const void *, size_t);
-void *memset(void *, int, size_t);
-#else /* not __STDC__ */
-char *memchr();
-int memcmp();
-char *memmove();
-char *memset();
-#endif /* not __STDC__ */
-#endif /* not HAVE_MEMCPY */
-
-#ifndef H_ERRNO_DECLARED
-extern int h_errno;
-#endif
-
-#include "getaddrinfo.h"
-
-#ifdef ENABLE_NLS
-#define _(string) gettext(string)
-#ifdef gettext_noop
-#define N_(string) gettext_noop(string)
-#else
-#define N_(string) (string)
-#endif
-#else
-#define gettext(string) (string)
-#define _(string) (string)
-#define N_(string) (string)
-#endif
-
-/*
- * Error messages for gai_strerror().
- */
-static char *eai_errlist[] = {
- N_("Success"),
-
- /* EAI_ADDRFAMILY */
- N_("Address family for hostname not supported"),
-
- /* EAI_AGAIN */
- N_("Temporary failure in name resolution"),
-
- /* EAI_BADFLAGS */
- N_("Invalid value for ai_flags"),
-
- /* EAI_FAIL */
- N_("Non-recoverable failure in name resolution"),
-
- /* EAI_FAMILY */
- N_("ai_family not supported"),
-
- /* EAI_MEMORY */
- N_("Memory allocation failure"),
-
- /* EAI_NONAME */
- N_("hostname nor servname provided, or not known"),
-
- /* EAI_OVERFLOW */
- N_("An argument buffer overflowed"),
-
- /* EAI_SERVICE */
- N_("servname not supported for ai_socktype"),
-
- /* EAI_SOCKTYPE */
- N_("ai_socktype not supported"),
-
- /* EAI_SYSTEM */
- N_("System error returned in errno")
-};
-
-/*
- * Default hints for getaddrinfo().
- */
-static struct addrinfo default_hints = {
- 0, PF_UNSPEC, 0, 0, 0, NULL, NULL, NULL
-};
-
-/*
- * Mutex.
- */
-#ifdef ENABLE_PTHREAD
-static pthread_mutex_t gai_mutex = PTHREAD_MUTEX_INITIALIZER;
-#endif
-
-/*
- * Declaration of static functions.
- */
-#ifdef __STDC__
-static int is_integer(const char *);
-static int is_address(const char *);
-static int itoa_length(int);
-#else
-static int is_integer();
-static int is_address();
-static int itoa_length();
-#endif
-
-/*
- * gai_strerror().
- */
-const char *
-gai_strerror(ecode)
- int ecode;
-{
- if (ecode < 0 || ecode > EAI_SYSTEM)
- return _("Unknown error");
-
- return gettext(eai_errlist[ecode]);
-}
-
-/*
- * freeaddrinfo().
- */
-void
-freeaddrinfo(ai)
- struct addrinfo *ai;
-{
- struct addrinfo *next_ai;
-
- while (ai != NULL) {
- if (ai->ai_canonname != NULL)
- free(ai->ai_canonname);
- if (ai->ai_addr != NULL)
- free(ai->ai_addr);
- next_ai = ai->ai_next;
- free(ai);
- ai = next_ai;
- }
-}
-
-/*
- * Return 1 if the string `s' represents an integer.
- */
-static int
-is_integer(s)
- const char *s;
-{
- if (*s == '-' || *s == '+')
- s++;
- if (*s < '0' || '9' < *s)
- return 0;
-
- s++;
- while ('0' <= *s && *s <= '9')
- s++;
-
- return (*s == '\0');
-}
-
-/*
- * Return 1 if the string `s' represents an IPv4 address.
- * Unlike inet_addr(), it doesn't permit malformed nortation such
- * as "192.168".
- */
-static int
-is_address(s)
- const char *s;
-{
- const static char delimiters[] = {'.', '.', '.', '\0'};
- int i, j;
- int octet;
-
- for (i = 0; i < 4; i++) {
- if (*s == '0' && *(s + 1) != delimiters[i])
- return 0;
- for (j = 0, octet = 0; '0' <= *s && *s <= '9' && j < 3; s++, j++)
- octet = octet * 10 + (*s - '0');
- if (j == 0 || octet > 255 || *s != delimiters[i])
- return 0;
- s++;
- }
-
- return 1;
-}
-
-/*
- * Calcurate length of the string `s', where `s' is set by
- * sprintf(s, "%d", n).
- */
-static int
-itoa_length(n)
- int n;
-{
- int result = 1;
-
- if (n < 0) {
- n = -n;
- result++;
- }
-
- while (n >= 10) {
- result++;
- n /= 10;
- }
-
- return result;
-}
-
-/*
- * getaddrinfo().
- */
-int
-getaddrinfo(nodename, servname, hints, res)
- const char *nodename;
- const char *servname;
- const struct addrinfo *hints;
- struct addrinfo **res;
-{
- struct addrinfo *head_res = NULL;
- struct addrinfo *tail_res = NULL;
- struct addrinfo *new_res;
- struct sockaddr_in *sa_in;
- struct in_addr **addr_list;
- struct in_addr *addr_list_buf[2];
- struct in_addr addr_buf;
- struct in_addr **ap;
- struct servent *servent;
- struct hostent *hostent;
- const char *canonname = NULL;
- in_port_t port;
- int saved_h_errno;
- int result = 0;
-
-#ifdef ENABLE_PTHREAD
- pthread_mutex_lock(&gai_mutex);
-#endif
-
- saved_h_errno = h_errno;
-
- if (nodename == NULL && servname == NULL) {
- result = EAI_NONAME;
- goto end;
- }
-
- if (hints != NULL) {
- if (hints->ai_family != PF_INET && hints->ai_family != PF_UNSPEC) {
- result = EAI_FAMILY;
- goto end;
- }
- if (hints->ai_socktype != SOCK_DGRAM
- && hints->ai_socktype != SOCK_STREAM
- && hints->ai_socktype != 0) {
- result = EAI_SOCKTYPE;
- goto end;
- }
- } else {
- hints = &default_hints;
- }
-
- if (servname != NULL) {
- if (is_integer(servname))
- port = htons(atoi(servname));
- else {
- if (hints->ai_flags & AI_NUMERICSERV) {
- result = EAI_NONAME;
- goto end;
- }
-
- if (hints->ai_socktype == SOCK_DGRAM)
- servent = getservbyname(servname, "udp");
- else if (hints->ai_socktype == SOCK_STREAM)
- servent = getservbyname(servname, "tcp");
- else if (hints->ai_socktype == 0)
- servent = getservbyname(servname, "tcp");
- else {
- result = EAI_SOCKTYPE;
- goto end;
- }
-
- if (servent == NULL) {
- result = EAI_SERVICE;
- goto end;
- }
- port = servent->s_port;
- }
- } else {
- port = htons(0);
- }
-
- if (nodename != NULL) {
- if (is_address(nodename)) {
- addr_buf.s_addr = inet_addr(nodename);
- addr_list_buf[0] = &addr_buf;
- addr_list_buf[1] = NULL;
- addr_list = addr_list_buf;
-
- if (hints->ai_flags & AI_CANONNAME
- && !(hints->ai_flags & AI_NUMERICHOST)) {
- hostent = gethostbyaddr((char *)&addr_buf,
- sizeof(struct in_addr), AF_INET);
- if (hostent != NULL)
- canonname = hostent->h_name;
- else
- canonname = nodename;
- }
- } else {
- if (hints->ai_flags & AI_NUMERICHOST) {
- result = EAI_NONAME;
- goto end;
- }
-
- hostent = gethostbyname(nodename);
- if (hostent == NULL) {
- switch (h_errno) {
- case HOST_NOT_FOUND:
- case NO_DATA:
- result = EAI_NONAME;
- goto end;
- case TRY_AGAIN:
- result = EAI_AGAIN;
- goto end;
- default:
- result = EAI_FAIL;
- goto end;
- }
- }
- addr_list = (struct in_addr **)hostent->h_addr_list;
-
- if (hints->ai_flags & AI_CANONNAME)
- canonname = hostent->h_name;
- }
- } else {
- if (hints->ai_flags & AI_PASSIVE)
- addr_buf.s_addr = htonl(INADDR_ANY);
- else
- addr_buf.s_addr = htonl(0x7F000001);
- addr_list_buf[0] = &addr_buf;
- addr_list_buf[1] = NULL;
- addr_list = addr_list_buf;
- }
-
- for (ap = addr_list; *ap != NULL; ap++) {
- new_res = (struct addrinfo *)malloc(sizeof(struct addrinfo));
- if (new_res == NULL) {
- if (head_res != NULL)
- freeaddrinfo(head_res);
- result = EAI_MEMORY;
- goto end;
- }
-
- new_res->ai_family = PF_INET;
- new_res->ai_socktype = hints->ai_socktype;
- new_res->ai_protocol = hints->ai_protocol;
- new_res->ai_addr = NULL;
- new_res->ai_addrlen = sizeof(struct sockaddr_in);
- new_res->ai_canonname = NULL;
- new_res->ai_next = NULL;
-
- new_res->ai_addr = (struct sockaddr *)
- malloc(sizeof(struct sockaddr_in));
- if (new_res->ai_addr == NULL) {
- free(new_res);
- if (head_res != NULL)
- freeaddrinfo(head_res);
- result = EAI_MEMORY;
- goto end;
- }
-
- sa_in = (struct sockaddr_in *)new_res->ai_addr;
- memset(sa_in, 0, sizeof(struct sockaddr_in));
- sa_in->sin_family = PF_INET;
- sa_in->sin_port = port;
- memcpy(&sa_in->sin_addr, *ap, sizeof(struct in_addr));
-
- if (head_res == NULL)
- head_res = new_res;
- else
- tail_res->ai_next = new_res;
- tail_res = new_res;
- }
-
- if (canonname != NULL && head_res != NULL) {
- head_res->ai_canonname = (char *)malloc(strlen(canonname) + 1);
- if (head_res->ai_canonname != NULL)
- strcpy(head_res->ai_canonname, canonname);
- }
-
- *res = head_res;
-
- end:
- h_errno = saved_h_errno;
-#ifdef ENABLE_PTHREAD
- pthread_mutex_unlock(&gai_mutex);
-#endif
- return result;
-}
-
-/*
- * getnameinfo().
- */
-int
-getnameinfo(sa, salen, node, nodelen, serv, servlen, flags)
- const struct sockaddr *sa;
- socklen_t salen;
- char *node;
- socklen_t nodelen;
- char *serv;
- socklen_t servlen;
- int flags;
-{
- const struct sockaddr_in *sa_in = (const struct sockaddr_in *)sa;
- struct hostent *hostent;
- struct servent *servent;
- char *ntoa_address;
- int saved_h_errno;
- int result = 0;
-
-#ifdef ENABLE_PTHREAD
- pthread_mutex_lock(&gai_mutex);
-#endif
-
- saved_h_errno = h_errno;
-
- if (sa_in->sin_family != PF_INET) {
- result = EAI_FAMILY;
- goto end;
- } else if (node == NULL && serv == NULL) {
- result = EAI_NONAME;
- goto end;
- }
-
- if (serv != NULL && servlen > 0) {
- if (flags & NI_NUMERICSERV)
- servent = NULL;
- else if (flags & NI_DGRAM)
- servent = getservbyport(sa_in->sin_port, "udp");
- else
- servent = getservbyport(sa_in->sin_port, "tcp");
-
- if (servent != NULL) {
- if (servlen <= strlen(servent->s_name)) {
- result = EAI_OVERFLOW;
- goto end;
- }
- strcpy(serv, servent->s_name);
- } else {
- if (servlen <= itoa_length(ntohs(sa_in->sin_port))) {
- result = EAI_OVERFLOW;
- goto end;
- }
- sprintf(serv, "%d", ntohs(sa_in->sin_port));
- }
- }
-
- if (node != NULL && nodelen > 0) {
- if (flags & NI_NUMERICHOST)
- hostent = NULL;
- else {
- hostent = gethostbyaddr((char *)&sa_in->sin_addr,
- sizeof(struct in_addr), AF_INET);
- }
- if (hostent != NULL) {
- if (nodelen <= strlen(hostent->h_name)) {
- result = EAI_OVERFLOW;
- goto end;
- }
- strcpy(node, hostent->h_name);
- } else {
- if (flags & NI_NAMEREQD) {
- result = EAI_NONAME;
- goto end;
- }
- ntoa_address = inet_ntoa(sa_in->sin_addr);
- if (nodelen <= strlen(ntoa_address)) {
- result = EAI_OVERFLOW;
- goto end;
- }
- strcpy(node, ntoa_address);
- }
-
- }
-
- end:
- h_errno = saved_h_errno;
-#ifdef ENABLE_PTHREAD
- pthread_mutex_unlock(&gai_mutex);
-#endif
- return result;
-}
-
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