diff options
Diffstat (limited to 'lib/inet_ntop.h')
-rw-r--r-- | lib/inet_ntop.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/lib/inet_ntop.h b/lib/inet_ntop.h new file mode 100644 index 000000000..bd1e085ae --- /dev/null +++ b/lib/inet_ntop.h @@ -0,0 +1,42 @@ +/* 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 |