From eb56a6b4b449d7d65f54812c03a2562929966616 Mon Sep 17 00:00:00 2001 From: eric <> Date: Tue, 12 Nov 2013 20:37:16 +0000 Subject: remove dead files ok deraadt@ --- src/lib/libc/net/res_init.c | 707 -------------------------------------------- 1 file changed, 707 deletions(-) delete mode 100644 src/lib/libc/net/res_init.c (limited to 'src/lib/libc/net/res_init.c') diff --git a/src/lib/libc/net/res_init.c b/src/lib/libc/net/res_init.c deleted file mode 100644 index 18de3550e6..0000000000 --- a/src/lib/libc/net/res_init.c +++ /dev/null @@ -1,707 +0,0 @@ -/* $OpenBSD: res_init.c,v 1.40 2009/06/05 09:52:26 pyr Exp $ */ - -/* - * ++Copyright++ 1985, 1989, 1993 - * - - * Copyright (c) 1985, 1989, 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. - * 3. 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) 1993 by Digital Equipment Corporation. - * - * 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, and that - * the name of Digital Equipment Corporation not be used in advertising or - * publicity pertaining to distribution of the document or software without - * specific, written prior permission. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL - * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT - * CORPORATION 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. - * - - * --Copyright-- - */ - -#ifndef INET6 -#define INET6 -#endif - -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include -#include -#include -#ifdef INET6 -#include -#endif /* INET6 */ - -#include "thread_private.h" - -/*-------------------------------------- info about "sortlist" -------------- - * Marc Majka 1994/04/16 - * Allan Nathanson 1994/10/29 (BIND 4.9.3.x) - * - * NetInfo resolver configuration directory support. - * - * Allow a NetInfo directory to be created in the hierarchy which - * contains the same information as the resolver configuration file. - * - * - The local domain name is stored as the value of the "domain" property. - * - The Internet address(es) of the name server(s) are stored as values - * of the "nameserver" property. - * - The name server addresses are stored as values of the "nameserver" - * property. - * - The search list for host-name lookup is stored as values of the - * "search" property. - * - The sortlist comprised of IP address netmask pairs are stored as - * values of the "sortlist" property. The IP address and optional netmask - * should be separated by a slash (/) or ampersand (&) character. - * - Internal resolver variables can be set from the value of the "options" - * property. - */ - -static void res_setoptions(char *, char *); - -#ifdef RESOLVSORT -static const char sort_mask[] = "/&"; -#define ISSORTMASK(ch) (strchr(sort_mask, ch) != NULL) -static u_int32_t net_mask(struct in_addr); -#endif - -/* - * Resolver state default settings. - */ -void *__THREAD_NAME(_res); - -struct __res_state _res -# if defined(__BIND_RES_TEXT) - = { RES_TIMEOUT, } /* Motorola, et al. */ -# endif - ; -#ifdef INET6 -void *__THREAD_NAME(_res_ext); - -struct __res_state_ext _res_ext; -#endif /* INET6 */ - -int __res_chktime = 30; - -/* - * Set up default settings. If the configuration file exist, the values - * there will have precedence. Otherwise, the server address is set to - * INADDR_ANY and the default domain name comes from the gethostname(). - * - * An interrim version of this code (BIND 4.9, pre-4.4BSD) used 127.0.0.1 - * rather than INADDR_ANY ("0.0.0.0") as the default name server address - * since it was noted that INADDR_ANY actually meant ``the first interface - * you "ifconfig"'d at boot time'' and if this was a SLIP or PPP interface, - * it had to be "up" in order for you to reach your own name server. It - * was later decided that since the recommended practice is to always - * install local static routes through 127.0.0.1 for all your network - * interfaces, that we could solve this problem without a code change. - * - * The configuration file should always be used, since it is the only way - * to specify a default domain. If you are running a server on your local - * machine, you should say "nameserver 0.0.0.0" or "nameserver 127.0.0.1" - * in the configuration file. - * - * Return 0 if completes successfully, -1 on error - */ -int -res_init(void) -{ - - return (_res_init(1)); -} - -int -_res_init(int usercall) -{ - struct stat sb; - struct __res_state *_resp = _THREAD_PRIVATE(_res, _res, &_res); -#ifdef INET6 - struct __res_state_ext *_res_extp = _THREAD_PRIVATE(_res_ext, _res_ext, - &_res_ext); -#endif - FILE *fp; - char *cp, **pp; - int n; - int findex; - char buf[BUFSIZ]; - int nserv = 0; /* number of nameserver records read from file */ - int haveenv = 0; - int havesearch = 0; - size_t len; -#ifdef RESOLVSORT - int nsort = 0; - char *net; -#endif -#ifndef RFC1535 - int dots; -#endif - - if (!usercall && _resp->options & RES_INIT && - _resp->reschktime >= time(NULL)) - return (0); - _resp->reschktime = time(NULL) + __res_chktime; - if (stat(_PATH_RESCONF, &sb) != -1) { - if (!usercall && timespeccmp(&sb.st_mtimespec, - &_resp->restimespec, ==)) - return (0); - else - _resp->restimespec = sb.st_mtimespec; - } else { - /* - * Lost the file, in chroot? - * Don't trash settings - */ - if (!usercall && timespecisset(&_resp->restimespec)) - return (0); - } - - - /* - * These three fields used to be statically initialized. This made - * it hard to use this code in a shared library. It is necessary, - * now that we're doing dynamic initialization here, that we preserve - * the old semantics: if an application modifies one of these three - * fields of _res before res_init() is called, res_init() will not - * alter them. Of course, if an application is setting them to - * _zero_ before calling res_init(), hoping to override what used - * to be the static default, we can't detect it and unexpected results - * will follow. Zero for any of these fields would make no sense, - * so one can safely assume that the applications were already getting - * unexpected results. - * - * _res.options is tricky since some apps were known to diddle the bits - * before res_init() was first called. We can't replicate that semantic - * with dynamic initialization (they may have turned bits off that are - * set in RES_DEFAULT). Our solution is to declare such applications - * "broken". They could fool us by setting RES_INIT but none do (yet). - */ - if (!_resp->retrans) - _resp->retrans = RES_TIMEOUT; - if (!_resp->retry) - _resp->retry = 4; - if (!(_resp->options & RES_INIT)) - _resp->options = RES_DEFAULT; - -#ifdef USELOOPBACK - _resp->nsaddr.sin_addr = inet_makeaddr(IN_LOOPBACKNET, 1); -#else - _resp->nsaddr.sin_addr.s_addr = INADDR_ANY; -#endif - _resp->nsaddr.sin_family = AF_INET; - _resp->nsaddr.sin_port = htons(NAMESERVER_PORT); - _resp->nsaddr.sin_len = sizeof(struct sockaddr_in); -#ifdef INET6 - if (sizeof(_res_extp->nsaddr) >= _resp->nsaddr.sin_len) - memcpy(&_res_extp->nsaddr, &_resp->nsaddr, _resp->nsaddr.sin_len); -#endif - _resp->nscount = 1; - _resp->ndots = 1; - _resp->pfcode = 0; - strlcpy(_resp->lookups, "f", sizeof _resp->lookups); - - /* Allow user to override the local domain definition */ - if (issetugid() == 0 && (cp = getenv("LOCALDOMAIN")) != NULL) { - strlcpy(_resp->defdname, cp, sizeof(_resp->defdname)); - haveenv++; - - /* - * Set search list to be blank-separated strings - * from rest of env value. Permits users of LOCALDOMAIN - * to still have a search list, and anyone to set the - * one that they want to use as an individual (even more - * important now that the rfc1535 stuff restricts searches) - */ - cp = _resp->defdname; - pp = _resp->dnsrch; - *pp++ = cp; - for (n = 0; *cp && pp < _resp->dnsrch + MAXDNSRCH; cp++) { - if (*cp == '\n') /* silly backwards compat */ - break; - else if (*cp == ' ' || *cp == '\t') { - *cp = 0; - n = 1; - } else if (n) { - *pp++ = cp; - n = 0; - havesearch = 1; - } - } - /* null terminate last domain if there are excess */ - while (*cp != '\0' && *cp != ' ' && *cp != '\t' && *cp != '\n') - cp++; - *cp = '\0'; - *pp++ = 0; - } - -#define MATCH(line, name) \ - (!strncmp(line, name, sizeof(name) - 1) && \ - (line[sizeof(name) - 1] == ' ' || \ - line[sizeof(name) - 1] == '\t')) - - /* initialize family lookup preference: inet4 first */ - _resp->family[0] = AF_INET; - _resp->family[1] = AF_INET6; - if ((fp = fopen(_PATH_RESCONF, "r")) != NULL) { - strlcpy(_resp->lookups, "bf", sizeof _resp->lookups); - - /* read the config file */ - buf[0] = '\0'; - while ((cp = fgetln(fp, &len)) != NULL) { - /* skip lines that are too long */ - if (len >= sizeof(buf)) - continue; - (void)memcpy(buf, cp, len); - buf[len] = '\0'; - /* skip comments */ - if ((cp = strpbrk(buf, ";#")) != NULL) - *cp = '\0'; - if (buf[0] == '\0') - continue; - /* set family lookup order */ - if (MATCH(buf, "family")) { - cp = buf + sizeof("family") - 1; - cp += strspn(cp, " \t"); - cp[strcspn(cp, "\n")] = '\0'; - findex = 0; - _resp->family[0] = _resp->family[1] = -1; -#define INETLEN (sizeof("inetX") - 1) - while (*cp != '\0' && findex < 2) { - if (!strncmp(cp, "inet6", INETLEN)) { - _resp->family[findex] = AF_INET6; - cp += INETLEN; - } else if (!strncmp(cp, "inet4", INETLEN)) { - _resp->family[findex] = AF_INET; - cp += INETLEN; - } else { - _resp->family[0] = -1; - break; - } - if (*cp != ' ' && *cp != '\t' && *cp != '\0') { - _resp->family[findex] = -1; - break; - } - findex++; - cp += strspn(cp, " \t"); - } - - if (_resp->family[0] == -1) { - /* line contains errors, reset to defaults */ - _resp->family[0] = AF_INET; - _resp->family[1] = AF_INET6; - } - if (_resp->family[0] == _resp->family[1]) - _resp->family[1] = -1; - } - /* read default domain name */ - if (MATCH(buf, "domain")) { - if (haveenv) /* skip if have from environ */ - continue; - cp = buf + sizeof("domain") - 1; - while (*cp == ' ' || *cp == '\t') - cp++; - if ((*cp == '\0') || (*cp == '\n')) - continue; - strlcpy(_resp->defdname, cp, sizeof(_resp->defdname)); - if ((cp = strpbrk(_resp->defdname, " \t\n")) != NULL) - *cp = '\0'; - havesearch = 0; - continue; - } - /* lookup types */ - if (MATCH(buf, "lookup")) { - char *sp = NULL; - - bzero(_resp->lookups, sizeof _resp->lookups); - cp = buf + sizeof("lookup") - 1; - for (n = 0;; cp++) { - if (n == MAXDNSLUS) - break; - if ((*cp == '\0') || (*cp == '\n')) { - if (sp) { - if (*sp=='y' || *sp=='b' || *sp=='f') - _resp->lookups[n++] = *sp; - sp = NULL; - } - break; - } else if ((*cp == ' ') || (*cp == '\t') || (*cp == ',')) { - if (sp) { - if (*sp=='y' || *sp=='b' || *sp=='f') - _resp->lookups[n++] = *sp; - sp = NULL; - } - } else if (sp == NULL) - sp = cp; - } - continue; - } - /* set search list */ - if (MATCH(buf, "search")) { - if (haveenv) /* skip if have from environ */ - continue; - cp = buf + sizeof("search") - 1; - while (*cp == ' ' || *cp == '\t') - cp++; - if ((*cp == '\0') || (*cp == '\n')) - continue; - strlcpy(_resp->defdname, cp, sizeof(_resp->defdname)); - if ((cp = strchr(_resp->defdname, '\n')) != NULL) - *cp = '\0'; - /* - * Set search list to be blank-separated strings - * on rest of line. - */ - cp = _resp->defdname; - pp = _resp->dnsrch; - *pp++ = cp; - for (n = 0; *cp && pp < _resp->dnsrch + MAXDNSRCH; cp++) { - if (*cp == ' ' || *cp == '\t') { - *cp = 0; - n = 1; - } else if (n) { - *pp++ = cp; - n = 0; - } - } - /* null terminate last domain if there are excess */ - while (*cp != '\0' && *cp != ' ' && *cp != '\t') - cp++; - *cp = '\0'; - *pp++ = 0; - havesearch = 1; - continue; - } - /* read nameservers to query */ - if (MATCH(buf, "nameserver") && nserv < MAXNS) { - char *q; - struct addrinfo hints, *res; - char pbuf[NI_MAXSERV]; - - cp = buf + sizeof("nameserver") - 1; - while (*cp == ' ' || *cp == '\t') - cp++; - if ((*cp == '\0') || (*cp == '\n')) - continue; - for (q = cp; *q; q++) { - if (isspace(*q)) { - *q = '\0'; - break; - } - } - - /* Handle addresses enclosed in [] */ - *pbuf = '\0'; - if (*cp == '[') { - cp++; - if ((q = strchr(cp, ']')) == NULL) - continue; - *q++ = '\0'; - /* Extract port, if specified */ - if (*q++ == ':') { - if (strlcpy(pbuf, q, sizeof(pbuf)) >= sizeof(pbuf)) - continue; - } - } - if (*pbuf == '\0') - snprintf(pbuf, sizeof(pbuf), "%u", NAMESERVER_PORT); - - memset(&hints, 0, sizeof(hints)); - hints.ai_flags = AI_NUMERICHOST; - hints.ai_socktype = SOCK_DGRAM; - res = NULL; - if (getaddrinfo(cp, pbuf, &hints, &res) == 0 && - res->ai_next == NULL) { - if (res->ai_addrlen <= sizeof(_res_extp->nsaddr_list[nserv])) { - memcpy(&_res_extp->nsaddr_list[nserv], res->ai_addr, - res->ai_addrlen); - } else { - memset(&_res_extp->nsaddr_list[nserv], 0, - sizeof(_res_extp->nsaddr_list[nserv])); - } - if (res->ai_addrlen <= sizeof(_resp->nsaddr_list[nserv])) { - memcpy(&_resp->nsaddr_list[nserv], res->ai_addr, - res->ai_addrlen); - } else { - memset(&_resp->nsaddr_list[nserv], 0, - sizeof(_resp->nsaddr_list[nserv])); - } - nserv++; - } - if (res) - freeaddrinfo(res); - continue; - } -#ifdef RESOLVSORT - if (MATCH(buf, "sortlist")) { - struct in_addr a; -#ifdef INET6 - struct in6_addr a6; - int m, i; - u_char *u; -#endif /* INET6 */ - - cp = buf + sizeof("sortlist") - 1; - while (nsort < MAXRESOLVSORT) { - while (*cp == ' ' || *cp == '\t') - cp++; - if (*cp == '\0' || *cp == '\n' || *cp == ';') - break; - net = cp; - while (*cp && !ISSORTMASK(*cp) && *cp != ';' && - isascii(*cp) && !isspace(*cp)) - cp++; - n = *cp; - *cp = 0; - if (inet_aton(net, &a)) { - _resp->sort_list[nsort].addr = a; - if (ISSORTMASK(n)) { - *cp++ = n; - net = cp; - while (*cp && *cp != ';' && - isascii(*cp) && !isspace(*cp)) - cp++; - n = *cp; - *cp = 0; - if (inet_aton(net, &a)) { - _resp->sort_list[nsort].mask = a.s_addr; - } else { - _resp->sort_list[nsort].mask = - net_mask(_resp->sort_list[nsort].addr); - } - } else { - _resp->sort_list[nsort].mask = - net_mask(_resp->sort_list[nsort].addr); - } -#ifdef INET6 - _res_extp->sort_list[nsort].af = AF_INET; - _res_extp->sort_list[nsort].addr.ina = - _resp->sort_list[nsort].addr; - _res_extp->sort_list[nsort].mask.ina.s_addr = - _resp->sort_list[nsort].mask; -#endif /* INET6 */ - nsort++; - } -#ifdef INET6 - else if (inet_pton(AF_INET6, net, &a6) == 1) { - _res_extp->sort_list[nsort].af = AF_INET6; - _res_extp->sort_list[nsort].addr.in6a = a6; - u = (u_char *)&_res_extp->sort_list[nsort].mask.in6a; - *cp++ = n; - net = cp; - while (*cp && *cp != ';' && - isascii(*cp) && !isspace(*cp)) - cp++; - m = n; - n = *cp; - *cp = 0; - switch (m) { - case '/': - m = atoi(net); - break; - case '&': - if (inet_pton(AF_INET6, net, u) == 1) { - m = -1; - break; - } - /* FALLTHROUGH */ - default: - m = sizeof(struct in6_addr) * NBBY; - break; - } - if (m >= 0) { - for (i = 0; i < sizeof(struct in6_addr); i++) { - if (m <= 0) { - *u = 0; - } else { - m -= NBBY; - *u = (u_char)~0; - if (m < 0) - *u <<= -m; - } - u++; - } - } - nsort++; - } -#endif /* INET6 */ - *cp = n; - } - continue; - } -#endif - if (MATCH(buf, "options")) { - res_setoptions(buf + sizeof("options") - 1, "conf"); - continue; - } - } - if (nserv > 1) - _resp->nscount = nserv; -#ifdef RESOLVSORT - _resp->nsort = nsort; -#endif - (void) fclose(fp); - } - if (_resp->defdname[0] == 0 && - gethostname(buf, sizeof(_resp->defdname) - 1) == 0 && - (cp = strchr(buf, '.')) != NULL) - { - strlcpy(_resp->defdname, cp + 1, - sizeof(_resp->defdname)); - } - - /* find components of local domain that might be searched */ - if (havesearch == 0) { - pp = _resp->dnsrch; - *pp++ = _resp->defdname; - *pp = NULL; - -#ifndef RFC1535 - dots = 0; - for (cp = _resp->defdname; *cp; cp++) - dots += (*cp == '.'); - - cp = _resp->defdname; - while (pp < _resp->dnsrch + MAXDFLSRCH) { - if (dots < LOCALDOMAINPARTS) - break; - cp = strchr(cp, '.') + 1; /* we know there is one */ - *pp++ = cp; - dots--; - } - *pp = NULL; -#ifdef DEBUG - if (_resp->options & RES_DEBUG) { - printf(";; res_init()... default dnsrch list:\n"); - for (pp = _resp->dnsrch; *pp; pp++) - printf(";;\t%s\n", *pp); - printf(";;\t..END..\n"); - } -#endif /* DEBUG */ -#endif /* !RFC1535 */ - } - - if (issetugid()) - _resp->options |= RES_NOALIASES; - else if ((cp = getenv("RES_OPTIONS")) != NULL) - res_setoptions(cp, "env"); - _resp->options |= RES_INIT; - return (0); -} - -/* ARGSUSED */ -static void -res_setoptions(char *options, char *source) -{ - struct __res_state *_resp = _THREAD_PRIVATE(_res, _res, &_res); - char *cp = options; - char *endp; - long l; - -#ifdef DEBUG - if (_resp->options & RES_DEBUG) - printf(";; res_setoptions(\"%s\", \"%s\")...\n", - options, source); -#endif - while (*cp) { - /* skip leading and inner runs of spaces */ - while (*cp == ' ' || *cp == '\t') - cp++; - /* search for and process individual options */ - if (!strncmp(cp, "ndots:", sizeof("ndots:") - 1)) { - char *p = cp + sizeof("ndots:") - 1; - l = strtol(p, &endp, 10); - if (l >= 0 && endp != p && - (*endp = '\0' || isspace(*endp))) { - if (l <= RES_MAXNDOTS) - _resp->ndots = l; - else - _resp->ndots = RES_MAXNDOTS; -#ifdef DEBUG - if (_resp->options & RES_DEBUG) - printf(";;\tndots=%u\n", _resp->ndots); -#endif - } - } else if (!strncmp(cp, "debug", sizeof("debug") - 1)) { -#ifdef DEBUG - if (!(_resp->options & RES_DEBUG)) { - printf(";; res_setoptions(\"%s\", \"%s\")..\n", - options, source); - _resp->options |= RES_DEBUG; - } - printf(";;\tdebug\n"); -#endif - } else if (!strncmp(cp, "inet6", sizeof("inet6") - 1)) { - _resp->options |= RES_USE_INET6; - } else if (!strncmp(cp, "insecure1", sizeof("insecure1") - 1)) { - _resp->options |= RES_INSECURE1; - } else if (!strncmp(cp, "insecure2", sizeof("insecure2") - 1)) { - _resp->options |= RES_INSECURE2; - } else if (!strncmp(cp, "edns0", sizeof("edns0") - 1)) { - _resp->options |= RES_USE_EDNS0; - } else if (!strncmp(cp, "tcp", sizeof("tcp") - 1)) { - _resp->options |= RES_USEVC; - } else { - /* XXX - print a warning here? */ - } - /* skip to next run of spaces */ - while (*cp && *cp != ' ' && *cp != '\t') - cp++; - } -} - -#ifdef RESOLVSORT -/* XXX - should really support CIDR which means explicit masks always. */ -static u_int32_t -net_mask(struct in_addr in) /* XXX - should really use system's version of this */ -{ - u_int32_t i = ntohl(in.s_addr); - - if (IN_CLASSA(i)) - return (htonl(IN_CLASSA_NET)); - else if (IN_CLASSB(i)) - return (htonl(IN_CLASSB_NET)); - return (htonl(IN_CLASSC_NET)); -} -#endif -- cgit v1.2.3-55-g6feb