aboutsummaryrefslogtreecommitdiffstats
path: root/e-util/e-host-utils.c
diff options
context:
space:
mode:
Diffstat (limited to 'e-util/e-host-utils.c')
-rw-r--r--e-util/e-host-utils.c386
1 files changed, 0 insertions, 386 deletions
diff --git a/e-util/e-host-utils.c b/e-util/e-host-utils.c
deleted file mode 100644
index 1e9fcbb14c..0000000000
--- a/e-util/e-host-utils.c
+++ /dev/null
@@ -1,386 +0,0 @@
-/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
-/* e-host-utils.c
- *
- * Copyright (C) 2001 Ximian, Inc.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public
- * License along with this program; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- *
- * Author: Chris Toshok, Jeffrey Stedfast
- */
-
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include <glib.h>
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <arpa/inet.h>
-#include <errno.h>
-
-#include "e-host-utils.h"
-
-
-#if !defined (HAVE_GETHOSTBYNAME_R) || !defined (HAVE_GETHOSTBYADDR_R)
-G_LOCK_DEFINE_STATIC (gethost_mutex);
-#endif
-
-
-#define GETHOST_PROCESS(h, host, buf, buflen, herr) G_STMT_START { \
- int num_aliases = 0, num_addrs = 0; \
- int req_length; \
- char *p; \
- int i; \
- \
- /* check to make sure we have enough room in our buffer */ \
- req_length = 0; \
- if (h->h_aliases) { \
- for (i = 0; h->h_aliases[i]; i++) \
- req_length += strlen (h->h_aliases[i]) + 1; \
- num_aliases = i; \
- } \
- \
- if (h->h_addr_list) { \
- for (i = 0; h->h_addr_list[i]; i++) \
- req_length += h->h_length; \
- num_addrs = i; \
- } \
- \
- req_length += sizeof (char *) * (num_aliases + 1); \
- req_length += sizeof (char *) * (num_addrs + 1); \
- req_length += strlen (h->h_name) + 1; \
- \
- if (buflen < req_length) { \
- *herr = ERANGE; \
- G_UNLOCK (gethost_mutex); \
- return ERANGE; \
- } \
- \
- /* we store the alias/addr pointers in the buffer */ \
- /* their addresses here. */ \
- p = buf; \
- if (num_aliases) { \
- host->h_aliases = (char **) p; \
- p += sizeof (char *) * (num_aliases + 1); \
- } else \
- host->h_aliases = NULL; \
- \
- if (num_addrs) { \
- host->h_addr_list = (char **) p; \
- p += sizeof (char *) * (num_addrs + 1); \
- } else \
- host->h_addr_list = NULL; \
- \
- /* copy the host name into the buffer */ \
- host->h_name = p; \
- strcpy (p, h->h_name); \
- p += strlen (h->h_name) + 1; \
- host->h_addrtype = h->h_addrtype; \
- host->h_length = h->h_length; \
- \
- /* copy the aliases/addresses into the buffer */ \
- /* and assign pointers into the hostent */ \
- *p = 0; \
- if (num_aliases) { \
- for (i = 0; i < num_aliases; i++) { \
- strcpy (p, h->h_aliases[i]); \
- host->h_aliases[i] = p; \
- p += strlen (h->h_aliases[i]); \
- } \
- host->h_aliases[num_aliases] = NULL; \
- } \
- \
- if (num_addrs) { \
- for (i = 0; i < num_addrs; i++) { \
- memcpy (p, h->h_addr_list[i], h->h_length); \
- host->h_addr_list[i] = p; \
- p += h->h_length; \
- } \
- host->h_addr_list[num_addrs] = NULL; \
- } \
-} G_STMT_END
-
-
-#ifdef ENABLE_IPv6
-/* some helpful utils for IPv6 lookups */
-#define IPv6_BUFLEN_MIN (sizeof (char *) * 3)
-
-static int
-ai_to_herr (int error)
-{
- switch (error) {
- case EAI_NONAME:
- case EAI_FAIL:
- return HOST_NOT_FOUND;
- break;
- case EAI_SERVICE:
- return NO_DATA;
- break;
- case EAI_ADDRFAMILY:
- return NO_ADDRESS;
- break;
- case EAI_NODATA:
- return NO_DATA;
- break;
- case EAI_MEMORY:
- return ENOMEM;
- break;
- case EAI_AGAIN:
- return TRY_AGAIN;
- break;
- case EAI_SYSTEM:
- return errno;
- break;
- default:
- return NO_RECOVERY;
- break;
- }
-}
-#endif /* ENABLE_IPv6 */
-
-/**
- * e_gethostbyname_r:
- * @name: the host to resolve
- * @host: a buffer pointing to a struct hostent to use for storage
- * @buf: a buffer to use for hostname storage
- * @buflen: the size of @buf
- * @herr: a pointer to a variable to store an error code in
- *
- * Resolves the hostname @name, in a hopefully-reentrant fashion.
- *
- * Return value: 0 on success, ERANGE if @buflen is too small,
- * "something else" otherwise (in which case *@herr will be set to
- * one of the gethostbyname() error codes).
- **/
-int
-e_gethostbyname_r (const char *name, struct hostent *host,
- char *buf, size_t buflen, int *herr)
-{
-#ifdef ENABLE_IPv6
- struct addrinfo hints, *res;
- int retval, len;
- char *addr;
-
- memset (&hints, 0, sizeof (struct addrinfo));
- hints.ai_flags = AI_CANONNAME;
- hints.ai_family = PF_UNSPEC;
- hints.ai_socktype = 0;
- hints.ai_protocol = 0;
-
- if ((retval = getaddrinfo (name, NULL, &hints, &res)) != 0) {
- *herr = ai_to_herr (retval);
- return -1;
- }
-
- len = strlen (res->ai_canonname);
- if (buflen < IPv6_BUFLEN_MIN + len + 1 + res->ai_addrlen)
- return ERANGE;
-
- /* h_name */
- strcpy (buf, res->ai_canonname);
- host->h_name = buf;
- buf += len;
-
- /* h_aliases */
- ((char **) buf)[0] = NULL;
- host->h_aliases = (char **) buf;
- buf += sizeof (char *);
-
- /* h_addrtype and h_length */
- host->h_length = res->ai_addrlen;
- if (res->ai_family == PF_INET6) {
- host->h_addrtype = AF_INET6;
-
- addr = (char *) &((struct sockaddr_in6 *) res->ai_addr)->sin6_addr;
- } else {
- host->h_addrtype = AF_INET;
-
- addr = (char *) &((struct sockaddr_in *) res->ai_addr)->sin_addr;
- }
-
- memcpy (buf, addr, host->h_length);
- addr = buf;
- buf += host->h_length;
-
- /* h_addr_list */
- ((char **) buf)[0] = addr;
- ((char **) buf)[1] = NULL;
- host->h_addr_list = (char **) buf;
-
- freeaddrinfo (res);
-
- return 0;
-#else /* No support for IPv6 addresses */
-#ifdef HAVE_GETHOSTBYNAME_R
-#ifdef GETHOSTBYNAME_R_FIVE_ARGS
- if (gethostbyname_r (name, host, buf, buflen, herr))
- return 0;
- else
- return errno;
-#else
- struct hostent *hp;
- int retval;
-
- retval = gethostbyname_r (name, host, buf, buflen, &hp, herr);
- if (hp != NULL)
- *herr = 0;
- return retval;
-#endif
-#else /* No support for gethostbyname_r */
- struct hostent *h;
-
- G_LOCK (gethost_mutex);
-
- h = gethostbyname (name);
-
- if (!h) {
- *herr = h_errno;
- G_UNLOCK (gethost_mutex);
- return -1;
- }
-
- GETHOST_PROCESS (h, host, buf, buflen, herr);
-
- G_UNLOCK (gethost_mutex);
-
- return 0;
-#endif /* HAVE_GETHOSTBYNAME_R */
-#endif /* ENABLE_IPv6 */
-}
-
-
-/**
- * e_gethostbyaddr_r:
- * @addr: the addr to resolve
- * @len: address length
- * @type: AF type
- * @host: a buffer pointing to a struct hostent to use for storage
- * @buf: a buffer to use for hostname storage
- * @buflen: the size of @buf
- * @herr: a pointer to a variable to store an error code in
- *
- * Resolves the address @addr, in a hopefully-reentrant fashion.
- *
- * Return value: 0 on success, ERANGE if @buflen is too small,
- * "something else" otherwise (in which case *@herr will be set to
- * one of the gethostbyaddr() error codes).
- **/
-int
-e_gethostbyaddr_r (const char *addr, int len, int type, struct hostent *host,
- char *buf, size_t buflen, int *herr)
-{
-#ifdef ENABLE_IPv6
- struct addrinfo hints, *res;
- const char *name;
- int retval, len;
-
- if ((name = inet_ntop (type, addr, buf, buflen)) == NULL) {
- if (errno == ENOSPC)
- return ERANGE;
-
- return -1;
- }
-
- memset (&hints, 0, sizeof (struct addrinfo));
- hints.ai_flags = AI_CANONNAME;
- hints.ai_family = type == AF_INET6 ? PF_INET6 : PF_INET;
- hints.ai_socktype = 0;
- hints.ai_protocol = 0;
-
- if ((retval = getaddrinfo (name, NULL, &hints, &res)) != 0) {
- *herr = ai_to_herr (retval);
- return -1;
- }
-
- len = strlen (res->ai_canonname);
- if (buflen < IPv6_BUFLEN_MIN + len + 1 + res->ai_addrlen)
- return ERANGE;
-
- /* h_name */
- strcpy (buf, res->ai_canonname);
- host->h_name = buf;
- buf += len;
-
- /* h_aliases */
- ((char **) buf)[0] = NULL;
- host->h_aliases = (char **) buf;
- buf += sizeof (char *);
-
- /* h_addrtype and h_length */
- host->h_length = res->ai_addrlen;
- if (res->ai_family == PF_INET6) {
- host->h_addrtype = AF_INET6;
-
- addr = (char *) &((struct sockaddr_in6 *) res->ai_addr)->sin6_addr;
- } else {
- host->h_addrtype = AF_INET;
-
- addr = (char *) &((struct sockaddr_in *) res->ai_addr)->sin_addr;
- }
-
- memcpy (buf, addr, host->h_length);
- addr = buf;
- buf += host->h_length;
-
- /* h_addr_list */
- ((char **) buf)[0] = addr;
- ((char **) buf)[1] = NULL;
- host->h_addr_list = (char **) buf;
-
- freeaddrinfo (res);
-
- return 0;
-#else /* No support for IPv6 addresses */
-#ifdef HAVE_GETHOSTBYADDR_R
-#ifdef GETHOSTBYADDR_R_SEVEN_ARGS
- if (gethostbyaddr_r (addr, len, type, host, buf, buflen, herr))
- return 0;
- else
- return errno;
-#else
- struct hostent *hp;
- int retval;
-
- retval = gethostbyaddr_r (addr, len, type, host, buf, buflen, &hp, herr);
- if (hp != NULL)
- *herr = 0;
- return retval;
-#endif
-#else /* No support for gethostbyaddr_r */
- struct hostent *h;
-
- G_LOCK (gethost_mutex);
-
- h = gethostbyaddr (addr, len, type);
-
- if (!h) {
- *herr = h_errno;
- G_UNLOCK (gethost_mutex);
- return -1;
- }
-
- GETHOST_PROCESS (h, host, buf, buflen, herr);
-
- G_UNLOCK (gethost_mutex);
-
- return 0;
-#endif /* HAVE_GETHOSTBYADDR_R */
-#endif /* ENABLE_IPv6 */
-}
generated by cgit (git 2.34.1) at 2024-12-12 20:28:29 +0800