68ba7e87e7
Security: CVE-2015-7973, CVE-2015-7974, CVE-2015-7975 Security: CVE-2015-7976, CVE-2015-7977, CVE-2015-7978 Security: CVE-2015-7979, CVE-2015-8138, CVE-2015-8139 Security: CVE-2015-8140, CVE-2015-8158 With hat: so
130 lines
2.8 KiB
C
130 lines
2.8 KiB
C
/*
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* is_ip_address
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*
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*/
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#if 0
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#include <stdio.h>
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#include <signal.h>
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#ifdef HAVE_FNMATCH_H
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# include <fnmatch.h>
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# if !defined(FNM_CASEFOLD) && defined(FNM_IGNORECASE)
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# define FNM_CASEFOLD FNM_IGNORECASE
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# endif
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#endif
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#ifdef HAVE_SYS_PARAM_H
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# include <sys/param.h>
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#endif
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#ifdef HAVE_SYS_IOCTL_H
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# include <sys/ioctl.h>
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#endif
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#ifdef HAVE_SYS_SOCKIO_H /* UXPV: SIOC* #defines (Frank Vance <fvance@waii.com>) */
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# include <sys/sockio.h>
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#endif
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#ifdef HAVE_SYS_UIO_H
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# include <sys/uio.h>
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#endif
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#endif
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#include "ntp_assert.h"
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#include "ntp_stdlib.h"
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#include "safecast.h"
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#if 0
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#include "ntp_machine.h"
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#include "ntpd.h"
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#include "ntp_io.h"
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#include "iosignal.h"
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#include "ntp_lists.h"
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#include "ntp_refclock.h"
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#include "ntp_worker.h"
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#include "ntp_request.h"
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#include "timevalops.h"
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#include "timespecops.h"
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#include "ntpd-opts.h"
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#endif
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/* Don't include ISC's version of IPv6 variables and structures */
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#define ISC_IPV6_H 1
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#include <isc/mem.h>
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#include <isc/interfaceiter.h>
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#include <isc/netaddr.h>
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#include <isc/result.h>
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#include <isc/sockaddr.h>
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/*
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* Code to tell if we have an IP address
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* If we have then return the sockaddr structure
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* and set the return value
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* see the bind9/getaddresses.c for details
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*/
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int
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is_ip_address(
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const char * host,
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u_short af,
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sockaddr_u * addr
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)
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{
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struct in_addr in4;
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struct addrinfo hints;
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struct addrinfo *result;
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struct sockaddr_in6 *resaddr6;
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char tmpbuf[128];
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char *pch;
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REQUIRE(host != NULL);
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REQUIRE(addr != NULL);
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ZERO_SOCK(addr);
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/*
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* Try IPv4, then IPv6. In order to handle the extended format
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* for IPv6 scoped addresses (address%scope_ID), we'll use a local
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* working buffer of 128 bytes. The length is an ad-hoc value, but
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* should be enough for this purpose; the buffer can contain a string
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* of at least 80 bytes for scope_ID in addition to any IPv6 numeric
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* addresses (up to 46 bytes), the delimiter character and the
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* terminating NULL character.
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*/
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if (AF_UNSPEC == af || AF_INET == af)
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if (inet_pton(AF_INET, host, &in4) == 1) {
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AF(addr) = AF_INET;
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SET_ADDR4N(addr, in4.s_addr);
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return TRUE;
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}
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if (AF_UNSPEC == af || AF_INET6 == af)
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if (sizeof(tmpbuf) > strlen(host)) {
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if ('[' == host[0]) {
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strlcpy(tmpbuf, &host[1], sizeof(tmpbuf));
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pch = strchr(tmpbuf, ']');
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if (pch != NULL)
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*pch = '\0';
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} else {
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strlcpy(tmpbuf, host, sizeof(tmpbuf));
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}
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ZERO(hints);
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hints.ai_family = AF_INET6;
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hints.ai_flags |= AI_NUMERICHOST;
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if (getaddrinfo(tmpbuf, NULL, &hints, &result) == 0) {
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AF(addr) = AF_INET6;
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resaddr6 = UA_PTR(struct sockaddr_in6, result->ai_addr);
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SET_ADDR6N(addr, resaddr6->sin6_addr);
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SET_SCOPE(addr, resaddr6->sin6_scope_id);
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freeaddrinfo(result);
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return TRUE;
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}
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}
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/*
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* If we got here it was not an IP address
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*/
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return FALSE;
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}
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