Adding upstream version 9.7.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
This commit is contained in:
parent
4b8dc12adb
commit
c08a8f7410
GPG key ID:
BCC918A2ABD66424
3561 changed files with 1457043 additions and 0 deletions
547
lib/getaddrinfo.c
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547
lib/getaddrinfo.c
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@ -0,0 +1,547 @@
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/* Get address information (partial implementation).
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Copyright (C) 1997, 2001-2002, 2004-2025 Free Software Foundation, Inc.
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Contributed by Simon Josefsson <simon@josefsson.org>.
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This file is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation; either version 2.1 of the
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License, or (at your option) any later version.
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This file is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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/* Don't use __attribute__ __nonnull__ in this compilation unit. Otherwise gcc
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optimizes away the sa == NULL test below. */
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#define _GL_ARG_NONNULL(params)
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#include <config.h>
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#include <netdb.h>
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#if HAVE_NETINET_IN_H
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# include <netinet/in.h>
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#endif
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/* Get inet_ntop. */
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#include <arpa/inet.h>
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/* Get calloc. */
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#include <stdlib.h>
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/* Get memcpy, strdup. */
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#include <string.h>
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/* Get snprintf. */
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#include <stdio.h>
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#include "gettext.h"
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#define _(msgid) dgettext ("gnulib", msgid)
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#define N_(msgid) msgid
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/* BeOS has AF_INET, but not PF_INET. */
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#ifndef PF_INET
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# define PF_INET AF_INET
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#endif
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/* BeOS also lacks PF_UNSPEC. */
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#ifndef PF_UNSPEC
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# define PF_UNSPEC 0
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#endif
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#if HAVE_GETADDRINFO
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/* Override with cdecl calling convention and mingw fix. */
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int
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getaddrinfo (const char *restrict nodename,
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const char *restrict servname,
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const struct addrinfo *restrict hints,
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struct addrinfo **restrict res)
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# undef getaddrinfo
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{
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if (hints && (hints->ai_flags & AI_NUMERICSERV) != 0
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&& servname && !(*servname >= '0' && *servname <= '9'))
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return EAI_NONAME;
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return getaddrinfo (nodename, servname, hints, res);
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}
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void
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freeaddrinfo (struct addrinfo *ai)
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# undef freeaddrinfo
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{
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freeaddrinfo (ai);
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}
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#else
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# if defined _WIN32 && !defined __CYGWIN__
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# define WINDOWS_NATIVE
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# endif
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/* gl_sockets_startup */
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# include "sockets.h"
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# ifdef WINDOWS_NATIVE
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/* Don't assume that UNICODE is not defined. */
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# undef GetModuleHandle
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# define GetModuleHandle GetModuleHandleA
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# if !(_WIN32_WINNT >= _WIN32_WINNT_WINXP)
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/* Avoid warnings from gcc -Wcast-function-type. */
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# define GetProcAddress \
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(void *) GetProcAddress
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typedef int (WSAAPI *getaddrinfo_func) (const char*, const char*,
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const struct addrinfo*,
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struct addrinfo**);
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typedef void (WSAAPI *freeaddrinfo_func) (struct addrinfo*);
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typedef int (WSAAPI *getnameinfo_func) (const struct sockaddr*,
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socklen_t, char*, DWORD,
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char*, DWORD, int);
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static getaddrinfo_func getaddrinfo_ptr = NULL;
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static freeaddrinfo_func freeaddrinfo_ptr = NULL;
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static getnameinfo_func getnameinfo_ptr = NULL;
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static int
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use_win32_p (void)
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{
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static int done = 0;
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HMODULE h;
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if (done)
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return getaddrinfo_ptr ? 1 : 0;
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done = 1;
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h = GetModuleHandle ("ws2_32.dll");
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if (h)
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{
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getaddrinfo_ptr = (getaddrinfo_func) GetProcAddress (h, "getaddrinfo");
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freeaddrinfo_ptr = (freeaddrinfo_func) GetProcAddress (h, "freeaddrinfo");
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getnameinfo_ptr = (getnameinfo_func) GetProcAddress (h, "getnameinfo");
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}
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/* If either is missing, something is odd. */
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if (!getaddrinfo_ptr || !freeaddrinfo_ptr || !getnameinfo_ptr)
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{
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getaddrinfo_ptr = NULL;
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freeaddrinfo_ptr = NULL;
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getnameinfo_ptr = NULL;
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return 0;
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}
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gl_sockets_startup (SOCKETS_1_1);
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return 1;
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}
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# else
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static int
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use_win32_p (void)
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{
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static int done = 0;
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if (!done)
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{
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done = 1;
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gl_sockets_startup (SOCKETS_1_1);
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}
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return 1;
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}
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# define getaddrinfo_ptr getaddrinfo
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# define freeaddrinfo_ptr freeaddrinfo
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# define getnameinfo_ptr getnameinfo
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# endif
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# endif
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static bool
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validate_family (int family)
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{
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/* FIXME: Support more families. */
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# if HAVE_IPV4
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if (family == PF_INET)
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return true;
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# endif
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# if HAVE_IPV6
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if (family == PF_INET6)
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return true;
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# endif
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if (family == PF_UNSPEC)
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return true;
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return false;
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}
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static bool
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is_numeric_host (const char *host, int family)
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{
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# if HAVE_IPV4
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if (family == PF_INET || family == PF_UNSPEC)
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{
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/* glibc supports IPv4 addresses in numbers-and-dots notation, that is,
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also hexadecimal and octal number formats and formats that don't
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require all four bytes to be explicitly written, via inet_aton().
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But POSIX doesn't require support for these legacy formats. Therefore
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we are free to use inet_pton() instead of inet_aton(). */
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struct in_addr addr;
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if (inet_pton (AF_INET, host, &addr))
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return true;
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}
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# endif
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# if HAVE_IPV6
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if (family == PF_INET6 || family == PF_UNSPEC)
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{
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struct in6_addr addr;
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if (inet_pton (AF_INET6, host, &addr))
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return true;
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}
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# endif
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return false;
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}
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/* Translate name of a service location and/or a service name to set of
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socket addresses. */
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int
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getaddrinfo (const char *restrict nodename,
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const char *restrict servname,
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const struct addrinfo *restrict hints,
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struct addrinfo **restrict res)
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#undef getaddrinfo
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{
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struct addrinfo *tmp;
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int port = 0;
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struct hostent *he;
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void *storage;
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size_t size;
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# if HAVE_IPV6
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struct v6_pair {
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struct addrinfo addrinfo;
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struct sockaddr_in6 sockaddr_in6;
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};
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# endif
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# if HAVE_IPV4
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struct v4_pair {
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struct addrinfo addrinfo;
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struct sockaddr_in sockaddr_in;
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};
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# endif
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# ifdef WINDOWS_NATIVE
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if (use_win32_p ())
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{
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if (hints && (hints->ai_flags & AI_NUMERICSERV) != 0
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&& servname && !(*servname >= '0' && *servname <= '9'))
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return EAI_NONAME;
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return getaddrinfo_ptr (nodename, servname, hints, res);
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}
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# endif
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if (hints
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&& (hints->ai_flags
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& ~(AI_CANONNAME | AI_PASSIVE | AI_NUMERICHOST | AI_NUMERICSERV)))
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/* FIXME: Support more flags. */
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return EAI_BADFLAGS;
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if (hints && !validate_family (hints->ai_family))
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return EAI_FAMILY;
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if (hints &&
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hints->ai_socktype != SOCK_STREAM && hints->ai_socktype != SOCK_DGRAM)
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/* FIXME: Support other socktype. */
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return EAI_SOCKTYPE; /* FIXME: Better return code? */
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if (nodename != NULL)
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{
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if (hints && (hints->ai_flags & AI_NUMERICHOST) != 0
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&& !is_numeric_host (nodename, hints->ai_family))
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return EAI_NONAME;
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}
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else
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{
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if (!(hints->ai_flags & AI_PASSIVE))
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return EAI_NONAME;
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# if HAVE_IPV6
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nodename = (hints->ai_family == AF_INET6) ? "::" : "0.0.0.0";
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# else
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nodename = "0.0.0.0";
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# endif
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}
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if (servname)
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{
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struct servent *se = NULL;
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const char *proto =
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(hints && hints->ai_socktype == SOCK_DGRAM) ? "udp" : "tcp";
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if (hints == NULL || !(hints->ai_flags & AI_NUMERICSERV))
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/* FIXME: Use getservbyname_r if available. */
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se = getservbyname (servname, proto);
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if (!se)
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{
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char *c;
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if (!(*servname >= '0' && *servname <= '9'))
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return EAI_NONAME;
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port = strtoul (servname, &c, 10);
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if (*c || port > 0xffff)
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return EAI_NONAME;
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port = htons (port);
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}
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else
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port = se->s_port;
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}
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/* FIXME: Use gethostbyname_r if available. */
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he = gethostbyname (nodename);
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if (!he || he->h_addr_list[0] == NULL)
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return EAI_NONAME;
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switch (he->h_addrtype)
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{
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# if HAVE_IPV6
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case PF_INET6:
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size = sizeof (struct v6_pair);
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break;
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# endif
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# if HAVE_IPV4
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case PF_INET:
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size = sizeof (struct v4_pair);
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break;
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# endif
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default:
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return EAI_NODATA;
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}
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storage = calloc (1, size);
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if (!storage)
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return EAI_MEMORY;
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switch (he->h_addrtype)
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{
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# if HAVE_IPV6
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case PF_INET6:
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{
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struct v6_pair *p = storage;
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struct sockaddr_in6 *sinp = &p->sockaddr_in6;
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tmp = &p->addrinfo;
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if (port)
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sinp->sin6_port = port;
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if (he->h_length != sizeof (sinp->sin6_addr))
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{
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free (storage);
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return EAI_SYSTEM; /* FIXME: Better return code? Set errno? */
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}
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memcpy (&sinp->sin6_addr, he->h_addr_list[0], sizeof sinp->sin6_addr);
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tmp->ai_addr = (struct sockaddr *) sinp;
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tmp->ai_addrlen = sizeof *sinp;
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}
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break;
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# endif
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# if HAVE_IPV4
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case PF_INET:
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{
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struct v4_pair *p = storage;
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struct sockaddr_in *sinp = &p->sockaddr_in;
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tmp = &p->addrinfo;
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if (port)
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sinp->sin_port = port;
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if (he->h_length != sizeof (sinp->sin_addr))
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{
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free (storage);
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return EAI_SYSTEM; /* FIXME: Better return code? Set errno? */
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}
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memcpy (&sinp->sin_addr, he->h_addr_list[0], sizeof sinp->sin_addr);
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tmp->ai_addr = (struct sockaddr *) sinp;
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tmp->ai_addrlen = sizeof *sinp;
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}
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break;
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# endif
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default:
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free (storage);
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return EAI_NODATA;
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}
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|
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if (hints && hints->ai_flags & AI_CANONNAME)
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{
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const char *cn;
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if (he->h_name)
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cn = he->h_name;
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else
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cn = nodename;
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tmp->ai_canonname = strdup (cn);
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if (!tmp->ai_canonname)
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{
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free (storage);
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return EAI_MEMORY;
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}
|
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}
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tmp->ai_protocol = (hints) ? hints->ai_protocol : 0;
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tmp->ai_socktype = (hints) ? hints->ai_socktype : 0;
|
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tmp->ai_addr->sa_family = he->h_addrtype;
|
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tmp->ai_family = he->h_addrtype;
|
||||
|
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# ifdef HAVE_STRUCT_SOCKADDR_SA_LEN
|
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switch (he->h_addrtype)
|
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{
|
||||
# if HAVE_IPV4
|
||||
case AF_INET:
|
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tmp->ai_addr->sa_len = sizeof (struct sockaddr_in);
|
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break;
|
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# endif
|
||||
# if HAVE_IPV6
|
||||
case AF_INET6:
|
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tmp->ai_addr->sa_len = sizeof (struct sockaddr_in6);
|
||||
break;
|
||||
# endif
|
||||
}
|
||||
# endif
|
||||
|
||||
/* FIXME: If more than one address, create linked list of addrinfo's. */
|
||||
|
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*res = tmp;
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|
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return 0;
|
||||
}
|
||||
|
||||
/* Free 'addrinfo' structure AI including associated storage. */
|
||||
void
|
||||
freeaddrinfo (struct addrinfo *ai)
|
||||
#undef freeaddrinfo
|
||||
{
|
||||
# ifdef WINDOWS_NATIVE
|
||||
if (use_win32_p ())
|
||||
{
|
||||
freeaddrinfo_ptr (ai);
|
||||
return;
|
||||
}
|
||||
# endif
|
||||
|
||||
while (ai)
|
||||
{
|
||||
struct addrinfo *cur;
|
||||
|
||||
cur = ai;
|
||||
ai = ai->ai_next;
|
||||
|
||||
free (cur->ai_canonname);
|
||||
free (cur);
|
||||
}
|
||||
}
|
||||
|
||||
int
|
||||
getnameinfo (const struct sockaddr *restrict sa, socklen_t salen,
|
||||
char *restrict node, socklen_t nodelen,
|
||||
char *restrict service, socklen_t servicelen,
|
||||
int flags)
|
||||
#undef getnameinfo
|
||||
{
|
||||
# ifdef WINDOWS_NATIVE
|
||||
if (use_win32_p ())
|
||||
return getnameinfo_ptr (sa, salen, node, nodelen,
|
||||
service, servicelen, flags);
|
||||
# endif
|
||||
|
||||
/* FIXME: Support other flags. */
|
||||
if ((node && nodelen > 0 && !(flags & NI_NUMERICHOST)) ||
|
||||
(service && servicelen > 0 && !(flags & NI_NUMERICHOST)) ||
|
||||
(flags & ~(NI_NUMERICHOST|NI_NUMERICSERV)))
|
||||
return EAI_BADFLAGS;
|
||||
|
||||
if (sa == NULL || salen < sizeof (sa->sa_family))
|
||||
return EAI_FAMILY;
|
||||
|
||||
switch (sa->sa_family)
|
||||
{
|
||||
# if HAVE_IPV4
|
||||
case AF_INET:
|
||||
if (salen < sizeof (struct sockaddr_in))
|
||||
return EAI_FAMILY;
|
||||
break;
|
||||
# endif
|
||||
# if HAVE_IPV6
|
||||
case AF_INET6:
|
||||
if (salen < sizeof (struct sockaddr_in6))
|
||||
return EAI_FAMILY;
|
||||
break;
|
||||
# endif
|
||||
default:
|
||||
return EAI_FAMILY;
|
||||
}
|
||||
|
||||
if (node && nodelen > 0 && flags & NI_NUMERICHOST)
|
||||
{
|
||||
switch (sa->sa_family)
|
||||
{
|
||||
# if HAVE_IPV4
|
||||
case AF_INET:
|
||||
if (!inet_ntop (AF_INET,
|
||||
&(((const struct sockaddr_in *) sa)->sin_addr),
|
||||
node, nodelen))
|
||||
return EAI_SYSTEM;
|
||||
break;
|
||||
# endif
|
||||
|
||||
# if HAVE_IPV6
|
||||
case AF_INET6:
|
||||
if (!inet_ntop (AF_INET6,
|
||||
&(((const struct sockaddr_in6 *) sa)->sin6_addr),
|
||||
node, nodelen))
|
||||
return EAI_SYSTEM;
|
||||
break;
|
||||
# endif
|
||||
|
||||
default:
|
||||
return EAI_FAMILY;
|
||||
}
|
||||
}
|
||||
|
||||
if (service && servicelen > 0 && flags & NI_NUMERICSERV)
|
||||
switch (sa->sa_family)
|
||||
{
|
||||
# if HAVE_IPV4
|
||||
case AF_INET:
|
||||
# endif
|
||||
# if HAVE_IPV6
|
||||
case AF_INET6:
|
||||
# endif
|
||||
{
|
||||
unsigned short int port
|
||||
= ntohs (((const struct sockaddr_in *) sa)->sin_port);
|
||||
if (servicelen <= snprintf (service, servicelen, "%u", port))
|
||||
return EAI_OVERFLOW;
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
#endif
|
||||
Loading…
Add table
Add a link
Reference in a new issue