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Diffstat (limited to 'deps/node/deps/cares/src/ares_gethostbyaddr.c')
-rw-r--r--deps/node/deps/cares/src/ares_gethostbyaddr.c294
1 files changed, 0 insertions, 294 deletions
diff --git a/deps/node/deps/cares/src/ares_gethostbyaddr.c b/deps/node/deps/cares/src/ares_gethostbyaddr.c
deleted file mode 100644
index a8ca0f57..00000000
--- a/deps/node/deps/cares/src/ares_gethostbyaddr.c
+++ /dev/null
@@ -1,294 +0,0 @@
-
-/* Copyright 1998 by the Massachusetts Institute of Technology.
- *
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in
- * advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.
- * M.I.T. makes no representations about the suitability of
- * this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-#include "ares_setup.h"
-
-#ifdef HAVE_NETINET_IN_H
-# include <netinet/in.h>
-#endif
-#ifdef HAVE_NETDB_H
-# include <netdb.h>
-#endif
-#ifdef HAVE_ARPA_INET_H
-# include <arpa/inet.h>
-#endif
-#ifdef HAVE_ARPA_NAMESER_H
-# include <arpa/nameser.h>
-#else
-# include "nameser.h"
-#endif
-#ifdef HAVE_ARPA_NAMESER_COMPAT_H
-# include <arpa/nameser_compat.h>
-#endif
-
-#include "ares.h"
-#include "ares_inet_net_pton.h"
-#include "ares_platform.h"
-#include "ares_private.h"
-
-#ifdef WATT32
-#undef WIN32
-#endif
-
-struct addr_query {
- /* Arguments passed to ares_gethostbyaddr() */
- ares_channel channel;
- struct ares_addr addr;
- ares_host_callback callback;
- void *arg;
-
- const char *remaining_lookups;
- int timeouts;
-};
-
-static void next_lookup(struct addr_query *aquery);
-static void addr_callback(void *arg, int status, int timeouts,
- unsigned char *abuf, int alen);
-static void end_aquery(struct addr_query *aquery, int status,
- struct hostent *host);
-static int file_lookup(struct ares_addr *addr, struct hostent **host);
-static void ptr_rr_name(char *name, const struct ares_addr *addr);
-
-void ares_gethostbyaddr(ares_channel channel, const void *addr, int addrlen,
- int family, ares_host_callback callback, void *arg)
-{
- struct addr_query *aquery;
-
- if (family != AF_INET && family != AF_INET6)
- {
- callback(arg, ARES_ENOTIMP, 0, NULL);
- return;
- }
-
- if ((family == AF_INET && addrlen != sizeof(aquery->addr.addrV4)) ||
- (family == AF_INET6 && addrlen != sizeof(aquery->addr.addrV6)))
- {
- callback(arg, ARES_ENOTIMP, 0, NULL);
- return;
- }
-
- aquery = ares_malloc(sizeof(struct addr_query));
- if (!aquery)
- {
- callback(arg, ARES_ENOMEM, 0, NULL);
- return;
- }
- aquery->channel = channel;
- if (family == AF_INET)
- memcpy(&aquery->addr.addrV4, addr, sizeof(aquery->addr.addrV4));
- else
- memcpy(&aquery->addr.addrV6, addr, sizeof(aquery->addr.addrV6));
- aquery->addr.family = family;
- aquery->callback = callback;
- aquery->arg = arg;
- aquery->remaining_lookups = channel->lookups;
- aquery->timeouts = 0;
-
- next_lookup(aquery);
-}
-
-static void next_lookup(struct addr_query *aquery)
-{
- const char *p;
- char name[128];
- int status;
- struct hostent *host;
-
- for (p = aquery->remaining_lookups; *p; p++)
- {
- switch (*p)
- {
- case 'b':
- ptr_rr_name(name, &aquery->addr);
- aquery->remaining_lookups = p + 1;
- ares_query(aquery->channel, name, C_IN, T_PTR, addr_callback,
- aquery);
- return;
- case 'f':
- status = file_lookup(&aquery->addr, &host);
-
- /* this status check below previously checked for !ARES_ENOTFOUND,
- but we should not assume that this single error code is the one
- that can occur, as that is in fact no longer the case */
- if (status == ARES_SUCCESS)
- {
- end_aquery(aquery, status, host);
- return;
- }
- break;
- }
- }
- end_aquery(aquery, ARES_ENOTFOUND, NULL);
-}
-
-static void addr_callback(void *arg, int status, int timeouts,
- unsigned char *abuf, int alen)
-{
- struct addr_query *aquery = (struct addr_query *) arg;
- struct hostent *host;
- size_t addrlen;
-
- aquery->timeouts += timeouts;
- if (status == ARES_SUCCESS)
- {
- if (aquery->addr.family == AF_INET)
- {
- addrlen = sizeof(aquery->addr.addrV4);
- status = ares_parse_ptr_reply(abuf, alen, &aquery->addr.addrV4,
- (int)addrlen, AF_INET, &host);
- }
- else
- {
- addrlen = sizeof(aquery->addr.addrV6);
- status = ares_parse_ptr_reply(abuf, alen, &aquery->addr.addrV6,
- (int)addrlen, AF_INET6, &host);
- }
- end_aquery(aquery, status, host);
- }
- else if (status == ARES_EDESTRUCTION || status == ARES_ECANCELLED)
- end_aquery(aquery, status, NULL);
- else
- next_lookup(aquery);
-}
-
-static void end_aquery(struct addr_query *aquery, int status,
- struct hostent *host)
-{
- aquery->callback(aquery->arg, status, aquery->timeouts, host);
- if (host)
- ares_free_hostent(host);
- ares_free(aquery);
-}
-
-static int file_lookup(struct ares_addr *addr, struct hostent **host)
-{
- FILE *fp;
- int status;
- int error;
-
-#ifdef WIN32
- char PATH_HOSTS[MAX_PATH];
- win_platform platform;
-
- PATH_HOSTS[0] = '\0';
-
- platform = ares__getplatform();
-
- if (platform == WIN_NT) {
- char tmp[MAX_PATH];
- HKEY hkeyHosts;
-
- if (RegOpenKeyExA(HKEY_LOCAL_MACHINE, WIN_NS_NT_KEY, 0, KEY_READ,
- &hkeyHosts) == ERROR_SUCCESS)
- {
- DWORD dwLength = MAX_PATH;
- RegQueryValueExA(hkeyHosts, DATABASEPATH, NULL, NULL, (LPBYTE)tmp,
- &dwLength);
- ExpandEnvironmentStringsA(tmp, PATH_HOSTS, MAX_PATH);
- RegCloseKey(hkeyHosts);
- }
- }
- else if (platform == WIN_9X)
- GetWindowsDirectoryA(PATH_HOSTS, MAX_PATH);
- else
- return ARES_ENOTFOUND;
-
- strcat(PATH_HOSTS, WIN_PATH_HOSTS);
-
-#elif defined(WATT32)
- extern const char *_w32_GetHostsFile (void);
- const char *PATH_HOSTS = _w32_GetHostsFile();
-
- if (!PATH_HOSTS)
- return ARES_ENOTFOUND;
-#endif
-
- fp = fopen(PATH_HOSTS, "r");
- if (!fp)
- {
- error = ERRNO;
- switch(error)
- {
- case ENOENT:
- case ESRCH:
- return ARES_ENOTFOUND;
- default:
- DEBUGF(fprintf(stderr, "fopen() failed with error: %d %s\n",
- error, strerror(error)));
- DEBUGF(fprintf(stderr, "Error opening file: %s\n",
- PATH_HOSTS));
- *host = NULL;
- return ARES_EFILE;
- }
- }
- while ((status = ares__get_hostent(fp, addr->family, host)) == ARES_SUCCESS)
- {
- if (addr->family != (*host)->h_addrtype)
- {
- ares_free_hostent(*host);
- continue;
- }
- if (addr->family == AF_INET)
- {
- if (memcmp((*host)->h_addr, &addr->addrV4,
- sizeof(addr->addrV4)) == 0)
- break;
- }
- else if (addr->family == AF_INET6)
- {
- if (memcmp((*host)->h_addr, &addr->addrV6,
- sizeof(addr->addrV6)) == 0)
- break;
- }
- ares_free_hostent(*host);
- }
- fclose(fp);
- if (status == ARES_EOF)
- status = ARES_ENOTFOUND;
- if (status != ARES_SUCCESS)
- *host = NULL;
- return status;
-}
-
-static void ptr_rr_name(char *name, const struct ares_addr *addr)
-{
- if (addr->family == AF_INET)
- {
- unsigned long laddr = ntohl(addr->addrV4.s_addr);
- unsigned long a1 = (laddr >> 24UL) & 0xFFUL;
- unsigned long a2 = (laddr >> 16UL) & 0xFFUL;
- unsigned long a3 = (laddr >> 8UL) & 0xFFUL;
- unsigned long a4 = laddr & 0xFFUL;
- sprintf(name, "%lu.%lu.%lu.%lu.in-addr.arpa", a4, a3, a2, a1);
- }
- else
- {
- unsigned char *bytes = (unsigned char *)&addr->addrV6;
- /* There are too many arguments to do this in one line using
- * minimally C89-compliant compilers */
- sprintf(name,
- "%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.",
- bytes[15]&0xf, bytes[15] >> 4, bytes[14]&0xf, bytes[14] >> 4,
- bytes[13]&0xf, bytes[13] >> 4, bytes[12]&0xf, bytes[12] >> 4,
- bytes[11]&0xf, bytes[11] >> 4, bytes[10]&0xf, bytes[10] >> 4,
- bytes[9]&0xf, bytes[9] >> 4, bytes[8]&0xf, bytes[8] >> 4);
- sprintf(name+strlen(name),
- "%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.ip6.arpa",
- bytes[7]&0xf, bytes[7] >> 4, bytes[6]&0xf, bytes[6] >> 4,
- bytes[5]&0xf, bytes[5] >> 4, bytes[4]&0xf, bytes[4] >> 4,
- bytes[3]&0xf, bytes[3] >> 4, bytes[2]&0xf, bytes[2] >> 4,
- bytes[1]&0xf, bytes[1] >> 4, bytes[0]&0xf, bytes[0] >> 4);
- }
-}
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