minix/lib/libc/inet/inet_neta.c
Ben Gras 2fe8fb192f Full switch to clang/ELF. Drop ack. Simplify.
There is important information about booting non-ack images in
docs/UPDATING. ack/aout-format images can't be built any more, and
booting clang/ELF-format ones is a little different. Updating to the
new boot monitor is recommended.

Changes in this commit:

	. drop boot monitor -> allowing dropping ack support
	. facility to copy ELF boot files to /boot so that old boot monitor
	  can still boot fairly easily, see UPDATING
	. no more ack-format libraries -> single-case libraries
	. some cleanup of OBJECT_FMT, COMPILER_TYPE, etc cases
	. drop several ack toolchain commands, but not all support
	  commands (e.g. aal is gone but acksize is not yet).
	. a few libc files moved to netbsd libc dir
	. new /bin/date as minix date used code in libc/
	. test compile fix
	. harmonize includes
	. /usr/lib is no longer special: without ack, /usr/lib plays no
	  kind of special bootstrapping role any more and bootstrapping
	  is done exclusively through packages, so releases depend even
	  less on the state of the machine making them now.
	. rename nbsd_lib* to lib*
	. reduce mtree
2012-02-14 14:52:02 +01:00

99 lines
2.4 KiB
C

/* $NetBSD: inet_neta.c,v 1.1 2004/05/20 23:13:02 christos Exp $ */
/*
* Copyright (c) 1996 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.
*/
#include <sys/cdefs.h>
#if defined(LIBC_SCCS) && !defined(lint)
#if 0
static const char rcsid[] = "Id: inet_neta.c,v 8.2 1996/08/08 06:54:44 vixie Exp ";
#else
__RCSID("$NetBSD: inet_neta.c,v 1.1 2004/05/20 23:13:02 christos Exp $");
#endif
#endif
#include "namespace.h"
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <assert.h>
#include <errno.h>
#include <stdio.h>
#include <string.h>
#ifdef __weak_alias
__weak_alias(inet_neta,_inet_neta)
#endif
/*
* char *
* inet_neta(src, dst, size)
* format a u_long network number into presentation format.
* return:
* pointer to dst, or NULL if an error occurred (check errno).
* note:
* format of ``src'' is as for inet_network().
* author:
* Paul Vixie (ISC), July 1996
*/
char *
inet_neta(src, dst, size)
u_long src;
char *dst;
size_t size;
{
char *odst = dst;
char *ep;
int advance;
_DIAGASSERT(dst != NULL);
if (src == 0x00000000) {
if (size < sizeof "0.0.0.0")
goto emsgsize;
strlcpy(dst, "0.0.0.0", size);
return dst;
}
ep = dst + size;
if (ep <= dst)
goto emsgsize;
while (src & 0xffffffff) {
u_char b = (u_char)((src & 0xff000000) >> 24);
src <<= 8;
if (b || src) {
advance = snprintf(dst, (size_t)(ep - dst), "%u", b);
if (advance <= 0 || advance >= ep - dst)
goto emsgsize;
dst += advance;
if (src != 0L) {
if (dst + 1 >= ep)
goto emsgsize;
*dst++ = '.';
*dst = '\0';
}
}
}
return (odst);
emsgsize:
errno = EMSGSIZE;
return (NULL);
}