diff options
Diffstat (limited to 'REORG.TODO/resolv/herror.c')
| -rw-r--r-- | REORG.TODO/resolv/herror.c | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/REORG.TODO/resolv/herror.c b/REORG.TODO/resolv/herror.c new file mode 100644 index 0000000000..b3df236bc9 --- /dev/null +++ b/REORG.TODO/resolv/herror.c @@ -0,0 +1,107 @@ +/* + * 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. + */ + +#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 = (char *) ": "; + v->iov_len = 2; + v++; + } + v->iov_base = (char *)hstrerror(h_errno); + v->iov_len = strlen(v->iov_base); + v++; + v->iov_base = (char *) "\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) |