GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: lib/libc/net/inet_neta.c Lines: 0 24 0.0 %
Date: 2017-11-13 Branches: 0 23 0.0 %

Line Branch Exec Source
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/*	$OpenBSD: inet_neta.c,v 1.7 2005/08/06 20:30:03 espie Exp $	*/
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/*
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 * Copyright (c) 1996 by Internet Software Consortium.
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 *
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 * Permission to use, copy, modify, and distribute this software for any
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 * purpose with or without fee is hereby granted, provided that the above
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 * copyright notice and this permission notice appear in all copies.
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 *
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 * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
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 * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
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 * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
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 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
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 * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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 * SOFTWARE.
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 */
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <errno.h>
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#include <stdio.h>
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#include <string.h>
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/*
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 * char *
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 * inet_neta(src, dst, size)
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 *	format an in_addr_t network number into presentation format.
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 * return:
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 *	pointer to dst, or NULL if an error occurred (check errno).
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 * note:
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 *	format of ``src'' is as for inet_network().
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 * author:
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 *	Paul Vixie (ISC), July 1996
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 */
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char *
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inet_neta(in_addr_t src, char *dst, size_t size)
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{
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	char *odst = dst;
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	char *ep;
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	int advance;
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	if (src == 0x00000000) {
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		if (size < sizeof "0.0.0.0")
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			goto emsgsize;
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		strlcpy(dst, "0.0.0.0", size);
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		return dst;
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	}
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	ep = dst + size;
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	if (ep <= dst)
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		goto emsgsize;
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	while (src & 0xffffffff) {
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		u_char b = (src & 0xff000000) >> 24;
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		src <<= 8;
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		if (b || src) {
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			if (ep - dst < sizeof "255.")
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				goto emsgsize;
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			advance = snprintf(dst, ep - dst, "%u", b);
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			if (advance <= 0 || advance >= ep - dst)
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				goto emsgsize;
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			dst += advance;
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			if (src != 0L) {
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				if (dst + 1 >= ep)
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					goto emsgsize;
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				*dst++ = '.';
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				*dst = '\0';
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			}
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		}
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	}
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	return (odst);
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 emsgsize:
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	errno = EMSGSIZE;
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	return (NULL);
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}