--- /dev/null
+/* inet_ntop.c -- convert IPv4 and IPv6 addresses from binary to text form
+ Copyright (c) 2005, 2006 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program 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 General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+/*
+ * Copyright (c) 1996-1999 by Internet Software Consortium.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
+ * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
+ * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+ * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
+ * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+ * SOFTWARE.
+ */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+/* Specification. */
+#include "inet_ntop.h"
+
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+
+#ifndef EAFNOSUPPORT
+# define EAFNOSUPPORT EINVAL
+#endif
+
+#define NS_IN6ADDRSZ 16
+#define NS_INT16SZ 2
+
+/*
+ * WARNING: Don't even consider trying to compile this on a system where
+ * sizeof(int) < 4. sizeof(int) > 4 is fine; all the world's not a VAX.
+ */
+typedef int verify_int_size[2 * sizeof (int) - 7];
+
+static const char *inet_ntop4 (const unsigned char *src, char *dst, socklen_t size);
+#if HAVE_IPV6
+static const char *inet_ntop6 (const unsigned char *src, char *dst, socklen_t size);
+#endif
+
+
+/* char *
+ * inet_ntop(af, src, dst, size)
+ * convert a network format address to presentation format.
+ * return:
+ * pointer to presentation format address (`dst'), or NULL (see errno).
+ * author:
+ * Paul Vixie, 1996.
+ */
+const char *
+inet_ntop (int af, const void *restrict src,
+ char *restrict dst, socklen_t cnt)
+{
+ switch (af)
+ {
+#if HAVE_IPV4
+ case AF_INET:
+ return (inet_ntop4 (src, dst, cnt));
+#endif
+
+#if HAVE_IPV6
+ case AF_INET6:
+ return (inet_ntop6 (src, dst, cnt));
+#endif
+
+ default:
+ errno = EAFNOSUPPORT;
+ return (NULL);
+ }
+ /* NOTREACHED */
+}
+
+/* const char *
+ * inet_ntop4(src, dst, size)
+ * format an IPv4 address
+ * return:
+ * `dst' (as a const)
+ * notes:
+ * (1) uses no statics
+ * (2) takes a u_char* not an in_addr as input
+ * author:
+ * Paul Vixie, 1996.
+ */
+static const char *
+inet_ntop4 (const unsigned char *src, char *dst, socklen_t size)
+{
+ char tmp[sizeof "255.255.255.255"];
+ int len;
+
+ len = sprintf (tmp, "%u.%u.%u.%u", src[0], src[1], src[2], src[3]);
+ if (len < 0)
+ return NULL;
+
+ if (len > size)
+ {
+ errno = ENOSPC;
+ return NULL;
+ }
+
+ return strcpy (dst, tmp);
+}
+
+#if HAVE_IPV6
+
+/* const char *
+ * inet_ntop6(src, dst, size)
+ * convert IPv6 binary address into presentation (printable) format
+ * author:
+ * Paul Vixie, 1996.
+ */
+static const char *
+inet_ntop6 (const unsigned char *src, char *dst, socklen_t size)
+{
+ /*
+ * Note that int32_t and int16_t need only be "at least" large enough
+ * to contain a value of the specified size. On some systems, like
+ * Crays, there is no such thing as an integer variable with 16 bits.
+ * Keep this in mind if you think this function should have been coded
+ * to use pointer overlays. All the world's not a VAX.
+ */
+ char tmp[sizeof "ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255"], *tp;
+ struct
+ {
+ int base, len;
+ } best, cur;
+ unsigned int words[NS_IN6ADDRSZ / NS_INT16SZ];
+ int i;
+
+ /*
+ * Preprocess:
+ * Copy the input (bytewise) array into a wordwise array.
+ * Find the longest run of 0x00's in src[] for :: shorthanding.
+ */
+ memset (words, '\0', sizeof words);
+ for (i = 0; i < NS_IN6ADDRSZ; i += 2)
+ words[i / 2] = (src[i] << 8) | src[i + 1];
+ best.base = -1;
+ cur.base = -1;
+ for (i = 0; i < (NS_IN6ADDRSZ / NS_INT16SZ); i++)
+ {
+ if (words[i] == 0)
+ {
+ if (cur.base == -1)
+ cur.base = i, cur.len = 1;
+ else
+ cur.len++;
+ }
+ else
+ {
+ if (cur.base != -1)
+ {
+ if (best.base == -1 || cur.len > best.len)
+ best = cur;
+ cur.base = -1;
+ }
+ }
+ }
+ if (cur.base != -1)
+ {
+ if (best.base == -1 || cur.len > best.len)
+ best = cur;
+ }
+ if (best.base != -1 && best.len < 2)
+ best.base = -1;
+
+ /*
+ * Format the result.
+ */
+ tp = tmp;
+ for (i = 0; i < (NS_IN6ADDRSZ / NS_INT16SZ); i++)
+ {
+ /* Are we inside the best run of 0x00's? */
+ if (best.base != -1 && i >= best.base && i < (best.base + best.len))
+ {
+ if (i == best.base)
+ *tp++ = ':';
+ continue;
+ }
+ /* Are we following an initial run of 0x00s or any real hex? */
+ if (i != 0)
+ *tp++ = ':';
+ /* Is this address an encapsulated IPv4? */
+ if (i == 6 && best.base == 0 &&
+ (best.len == 6 || (best.len == 5 && words[5] == 0xffff)))
+ {
+ if (!inet_ntop4 (src + 12, tp, sizeof tmp - (tp - tmp)))
+ return (NULL);
+ tp += strlen (tp);
+ break;
+ }
+ {
+ int len = sprintf (tp, "%x", words[i]);
+ if (len < 0)
+ return NULL;
+ tp += len;
+ }
+ }
+ /* Was it a trailing run of 0x00's? */
+ if (best.base != -1 && (best.base + best.len) ==
+ (NS_IN6ADDRSZ / NS_INT16SZ))
+ *tp++ = ':';
+ *tp++ = '\0';
+
+ /*
+ * Check for overflow, copy, and we're done.
+ */
+ if ((socklen_t) (tp - tmp) > size)
+ {
+ errno = ENOSPC;
+ return NULL;
+ }
+
+ return strcpy (dst, tmp);
+}
+
+#endif
--- /dev/null
+/* Convert internet address from internal to printable, presentable format.
+ Copyright (C) 2005, 2006 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program 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 General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+/* Converts an internet address from internal format to a printable,
+ presentable format.
+ AF is an internet address family, such as AF_INET or AF_INET6.
+ SRC points to a 'struct in_addr' (for AF_INET) or 'struct in6_addr'
+ (for AF_INET6).
+ DST points to a buffer having room for CNT bytes.
+ The printable representation of the address (in numeric form, not
+ surrounded by [...], no reverse DNS is done) is placed in DST, and
+ DST is returned. If an error occurs, the return value is NULL and
+ errno is set. If CNT bytes are not sufficient to hold the result,
+ the return value is NULL and errno is set to ENOSPC. A good value
+ for CNT is 46.
+
+ For more details, see the POSIX:2001 specification
+ <http://www.opengroup.org/susv3xsh/inet_ntop.html>. */
+
+#if !HAVE_DECL_INET_NTOP
+extern const char *inet_ntop (int af, const void *restrict src,
+ char *restrict dst, socklen_t cnt);
+#endif
--- /dev/null
+/* Formatted output to strings.
+ Copyright (C) 2004, 2006 Free Software Foundation, Inc.
+ Written by Simon Josefsson and Paul Eggert.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program 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 General Public License for more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "snprintf.h"
+
+#include <errno.h>
+#include <limits.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "vasnprintf.h"
+
+/* Some systems, like OSF/1 4.0 and Woe32, don't have EOVERFLOW. */
+#ifndef EOVERFLOW
+# define EOVERFLOW E2BIG
+#endif
+
+/* Print formatted output to string STR. Similar to sprintf, but
+ additional length SIZE limit how much is written into STR. Returns
+ string length of formatted string (which may be larger than SIZE).
+ STR may be NULL, in which case nothing will be written. On error,
+ return a negative value. */
+int
+snprintf (char *str, size_t size, const char *format, ...)
+{
+ char *output;
+ size_t len;
+ va_list args;
+
+ va_start (args, format);
+ len = size;
+ output = vasnprintf (str, &len, format, args);
+ va_end (args);
+
+ if (!output)
+ return -1;
+
+ if (output != str)
+ {
+ if (size)
+ {
+ memcpy (str, output, size - 1);
+ str[size - 1] = '\0';
+ }
+
+ free (output);
+ }
+
+ if (INT_MAX < len)
+ {
+ errno = EOVERFLOW;
+ return -1;
+ }
+
+ return len;
+}
--- /dev/null
+/* Formatted output to strings.
+ Copyright (C) 2004 Free Software Foundation, Inc.
+ Written by Simon Josefsson.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program 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 General Public License for more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifndef SNPRINTF_H
+#define SNPRINTF_H
+
+/* Get snprintf declaration, if available. */
+#include <stdio.h>
+
+#if defined HAVE_DECL_SNPRINTF && !HAVE_DECL_SNPRINTF
+int snprintf (char *str, size_t size, const char *format, ...);
+#endif
+
+#endif /* SNPRINTF_H */
--- /dev/null
+/* Provide a sys/socket header file for systems lacking it (read: MinGW).
+ Copyright (C) 2005, 2006 Free Software Foundation, Inc.
+ Written by Simon Josefsson.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program 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 General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifndef _SYS_SOCKET_H
+#define _SYS_SOCKET_H
+
+/* This file is supposed to be used on platforms that lack
+ sys/socket.h. It is intended to provide definitions and prototypes
+ needed by an application.
+
+ Currently only MinGW is supported. See the gnulib manual regarding
+ Windows sockets. MinGW has the header files winsock2.h and
+ ws2tcpip.h that declare the sys/socket.h definitions we need. Note
+ that you can influence which definitions you get by setting the
+ WINVER symbol before including these two files. For example,
+ getaddrinfo is only available if _WIN32_WINNT >= 0x0501 (that
+ symbol is set indiriectly through WINVER). You can set this by
+ adding AC_DEFINE(WINVER, 0x0501) to configure.ac. Note that your
+ code may not run on older Windows releases then. My Windows 2000
+ box was not able to run the code, for example. The situation is
+ slightly confusing because:
+ http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winsock/winsock/getaddrinfo_2.asp
+ suggests that getaddrinfo should be available on all Windows
+ releases. */
+
+
+#if HAVE_WINSOCK2_H
+# include <winsock2.h>
+#endif
+#if HAVE_WS2TCPIP_H
+# include <ws2tcpip.h>
+#endif
+
+/* For shutdown(). */
+#if !defined SHUT_RD && defined SD_RECEIVE
+# define SHUT_RD SD_RECEIVE
+#endif
+#if !defined SHUT_WR && defined SD_SEND
+# define SHUT_WR SD_SEND
+#endif
+#if !defined SHUT_RDWR && defined SD_BOTH
+# define SHUT_RDWR SD_BOTH
+#endif
+
+#endif /* _SYS_SOCKET_H */
--- /dev/null
+# arpa_inet_h.m4 serial 1
+dnl Copyright (C) 2006 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+dnl Written by Simon Josefsson
+
+AC_DEFUN([gl_HEADER_ARPA_INET],
+[
+ AC_CHECK_HEADERS_ONCE([arpa/inet.h])
+ if test $ac_cv_header_arpa_inet_h = yes; then
+ ARPA_INET_H=''
+ else
+ ARPA_INET_H='arpa/inet.h'
+ fi
+ AC_SUBST(ARPA_INET_H)
+])
--- /dev/null
+# inet_ntop.m4 serial 3
+dnl Copyright (C) 2005, 2006 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_INET_NTOP],
+[
+ AC_REPLACE_FUNCS(inet_ntop)
+ gl_PREREQ_INET_NTOP
+])
+
+# Prerequisites of lib/inet_ntop.h and lib/inet_ntop.c.
+AC_DEFUN([gl_PREREQ_INET_NTOP], [
+ AC_CHECK_HEADERS_ONCE([netinet/in.h arpa/inet.h])
+ AC_CHECK_DECLS([inet_ntop],,,[#include <arpa/inet.h>])
+ AC_REQUIRE([gl_SOCKET_FAMILIES])
+ AC_REQUIRE([AC_C_RESTRICT])
+])
--- /dev/null
+# netinet_in_h.m4 serial 1
+dnl Copyright (C) 2006 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+dnl Written by Simon Josefsson
+
+AC_DEFUN([gl_HEADER_NETINET_IN],
+[
+ AC_CHECK_HEADERS_ONCE([netinet/in.h])
+ if test $ac_cv_header_netinet_in_h = yes; then
+ NETINET_IN_H=''
+ else
+ NETINET_IN_H='netinet/in.h'
+ fi
+ AC_SUBST(NETINET_IN_H)
+])
--- /dev/null
+# snprintf.m4 serial 2
+dnl Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_FUNC_SNPRINTF],
+[
+ AC_REPLACE_FUNCS(snprintf)
+ AC_CHECK_DECLS_ONCE(snprintf)
+ gl_PREREQ_SNPRINTF
+])
+
+# Prerequisites of lib/snprintf.c.
+AC_DEFUN([gl_PREREQ_SNPRINTF], [:])
projects / thirdparty / coreutils.git / commitdiff
