cb690d1f0b
and res_* modules in a way that works for ELF. I moved the aliases out of res_stubs.c and into the individual modules where the entry points are defined. Weak aliases don't work in ELF unless that is the case. (Actually, I'm surprised it worked for a.out.) This should fix the undefined "inet_addr" and related symbols in various applications that fail to include <arpa/inet.h> or <resolv.h> as they are supposed to do.
92 lines
2.3 KiB
C
92 lines
2.3 KiB
C
/*
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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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#if defined(LIBC_SCCS) && !defined(lint)
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static const char orig_rcsid[] = "From Id: inet_neta.c,v 8.2 1996/08/08 06:54:44 vixie Exp";
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static const char rcsid[] = "$Id: inet_neta.c,v 1.4 1998/02/20 08:13:51 jb Exp $";
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#endif
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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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#ifdef SPRINTF_CHAR
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# define SPRINTF(x) strlen(sprintf/**/x)
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#else
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# define SPRINTF(x) ((size_t)sprintf x)
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#endif
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/*
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* char *
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* inet_neta(src, dst, size)
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* format a u_long 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(src, dst, size)
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u_long src;
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char *dst;
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size_t size;
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{
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char *odst = dst;
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char *tp;
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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) {
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if (size < sizeof "255.")
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goto emsgsize;
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tp = dst;
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dst += SPRINTF((dst, "%u", b));
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if (src != 0L) {
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*dst++ = '.';
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*dst = '\0';
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}
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size -= (size_t)(dst - tp);
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}
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}
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if (dst == odst) {
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if (size < sizeof "0.0.0.0")
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goto emsgsize;
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strcpy(dst, "0.0.0.0");
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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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}
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/*
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* Weak aliases for applications that use certain private entry points,
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* and fail to include <arpa/inet.h>.
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*/
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#undef inet_neta
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__weak_reference(__inet_neta, inet_neta);
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