| /* |
| * Copyright (c) 1987, 1993 |
| * The Regents of the University of California. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 4. Neither the name of the University nor the names of its contributors |
| * may be used to endorse or promote products derived from this software |
| * without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| */ |
| |
| /* |
| * Portions 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. |
| */ |
| |
| #if defined(LIBC_SCCS) && !defined(lint) |
| static const char sccsid[] = "@(#)herror.c 8.1 (Berkeley) 6/4/93"; |
| static const char rcsid[] = "$BINDId: herror.c,v 8.11 1999/10/13 16:39:39 vixie Exp $"; |
| #endif /* LIBC_SCCS and not lint */ |
| |
| #include <sys/types.h> |
| #include <sys/param.h> |
| #include <sys/uio.h> |
| |
| #include <netinet/in.h> |
| #include <arpa/nameser.h> |
| |
| #include <netdb.h> |
| #include <resolv.h> |
| #include <string.h> |
| #include <unistd.h> |
| |
| #include <libintl.h> |
| #include <not-cancel.h> |
| |
| const char *const h_errlist[] = { |
| N_("Resolver Error 0 (no error)"), |
| N_("Unknown host"), /* 1 HOST_NOT_FOUND */ |
| N_("Host name lookup failure"), /* 2 TRY_AGAIN */ |
| N_("Unknown server error"), /* 3 NO_RECOVERY */ |
| N_("No address associated with name"), /* 4 NO_ADDRESS */ |
| }; |
| const int h_nerr = { sizeof h_errlist / sizeof h_errlist[0] }; |
| |
| /* |
| * herror -- |
| * print the error indicated by the h_errno value. |
| */ |
| void |
| herror(const char *s) { |
| struct iovec iov[4], *v = iov; |
| |
| if (s != NULL && *s != '\0') { |
| v->iov_base = (/*noconst*/ char *)s; |
| v->iov_len = strlen(s); |
| v++; |
| v->iov_base = ": "; |
| v->iov_len = 2; |
| v++; |
| } |
| v->iov_base = (char *)hstrerror(h_errno); |
| v->iov_len = strlen(v->iov_base); |
| v++; |
| v->iov_base = "\n"; |
| v->iov_len = 1; |
| writev_not_cancel_no_status(STDERR_FILENO, iov, (v - iov) + 1); |
| } |
| |
| /* |
| * hstrerror -- |
| * return the string associated with a given "host" errno value. |
| */ |
| const char * |
| hstrerror(int err) { |
| if (err < 0) |
| return _("Resolver internal error"); |
| else if (err < h_nerr) |
| return _(h_errlist[err]); |
| return _("Unknown resolver error"); |
| } |
| libc_hidden_def (hstrerror) |
