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Diffstat (limited to 'source4/lib/replace/getaddrinfo.c')
-rw-r--r--source4/lib/replace/getaddrinfo.c497
1 files changed, 0 insertions, 497 deletions
diff --git a/source4/lib/replace/getaddrinfo.c b/source4/lib/replace/getaddrinfo.c
deleted file mode 100644
index c5cd52be93..0000000000
--- a/source4/lib/replace/getaddrinfo.c
+++ /dev/null
@@ -1,497 +0,0 @@
-/*
-PostgreSQL Database Management System
-(formerly known as Postgres, then as Postgres95)
-
-Portions Copyright (c) 1996-2005, The PostgreSQL Global Development Group
-
-Portions Copyright (c) 1994, The Regents of the University of California
-
-Permission to use, copy, modify, and distribute this software and its
-documentation for any purpose, without fee, and without a written agreement
-is hereby granted, provided that the above copyright notice and this paragraph
-and the following two paragraphs appear in all copies.
-
-IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
-DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING
-LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION,
-EVEN IF THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF
-SUCH DAMAGE.
-
-THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
-INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
-AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
-ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATIONS
-TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
-
-*/
-
-/*-------------------------------------------------------------------------
- *
- * getaddrinfo.c
- * Support getaddrinfo() on platforms that don't have it.
- *
- * We also supply getnameinfo() here, assuming that the platform will have
- * it if and only if it has getaddrinfo(). If this proves false on some
- * platform, we'll need to split this file and provide a separate configure
- * test for getnameinfo().
- *
- * Copyright (c) 2003-2007, PostgreSQL Global Development Group
- *
- * Copyright (C) 2007 Jeremy Allison.
- * Modified to return multiple IPv4 addresses for Samba.
- *
- *-------------------------------------------------------------------------
- */
-
-#include "replace.h"
-#include "system/network.h"
-
-#ifndef SMB_MALLOC
-#define SMB_MALLOC(s) malloc(s)
-#endif
-
-#ifndef SMB_STRDUP
-#define SMB_STRDUP(s) strdup(s)
-#endif
-
-static int check_hostent_err(struct hostent *hp)
-{
- if (!hp) {
- switch (h_errno) {
- case HOST_NOT_FOUND:
- case NO_DATA:
- return EAI_NONAME;
- case TRY_AGAIN:
- return EAI_AGAIN;
- case NO_RECOVERY:
- default:
- return EAI_FAIL;
- }
- }
- if (!hp->h_name || hp->h_addrtype != AF_INET) {
- return EAI_FAIL;
- }
- return 0;
-}
-
-static char *canon_name_from_hostent(struct hostent *hp,
- int *perr)
-{
- char *ret = NULL;
-
- *perr = check_hostent_err(hp);
- if (*perr) {
- return NULL;
- }
- ret = SMB_STRDUP(hp->h_name);
- if (!ret) {
- *perr = EAI_MEMORY;
- }
- return ret;
-}
-
-static char *get_my_canon_name(int *perr)
-{
- char name[HOST_NAME_MAX+1];
-
- if (gethostname(name, HOST_NAME_MAX) == -1) {
- *perr = EAI_FAIL;
- return NULL;
- }
- /* Ensure null termination. */
- name[HOST_NAME_MAX] = '\0';
- return canon_name_from_hostent(gethostbyname(name), perr);
-}
-
-static char *get_canon_name_from_addr(struct in_addr ip,
- int *perr)
-{
- return canon_name_from_hostent(
- gethostbyaddr(&ip, sizeof(ip), AF_INET),
- perr);
-}
-
-static struct addrinfo *alloc_entry(const struct addrinfo *hints,
- struct in_addr ip,
- unsigned short port)
-{
- struct sockaddr_in *psin = NULL;
- struct addrinfo *ai = SMB_MALLOC(sizeof(*ai));
-
- if (!ai) {
- return NULL;
- }
- memset(ai, '\0', sizeof(*ai));
-
- psin = SMB_MALLOC(sizeof(*psin));
- if (!psin) {
- free(ai);
- return NULL;
- }
-
- memset(psin, '\0', sizeof(*psin));
-
- psin->sin_family = AF_INET;
- psin->sin_port = htons(port);
- psin->sin_addr = ip;
-
- ai->ai_flags = 0;
- ai->ai_family = AF_INET;
- ai->ai_socktype = hints->ai_socktype;
- ai->ai_protocol = hints->ai_protocol;
- ai->ai_addrlen = sizeof(*psin);
- ai->ai_addr = (struct sockaddr *) psin;
- ai->ai_canonname = NULL;
- ai->ai_next = NULL;
-
- return ai;
-}
-
-/*
- * get address info for a single ipv4 address.
- *
- * Bugs: - servname can only be a number, not text.
- */
-
-static int getaddr_info_single_addr(const char *service,
- uint32_t addr,
- const struct addrinfo *hints,
- struct addrinfo **res)
-{
-
- struct addrinfo *ai = NULL;
- struct in_addr ip;
- unsigned short port = 0;
-
- if (service) {
- port = (unsigned short)atoi(service);
- }
- ip.s_addr = htonl(addr);
-
- ai = alloc_entry(hints, ip, port);
- if (!ai) {
- return EAI_MEMORY;
- }
-
- /* If we're asked for the canonical name,
- * make sure it returns correctly. */
- if (!(hints->ai_flags & AI_NUMERICSERV) &&
- hints->ai_flags & AI_CANONNAME) {
- int err;
- if (addr == INADDR_LOOPBACK || addr == INADDR_ANY) {
- ai->ai_canonname = get_my_canon_name(&err);
- } else {
- ai->ai_canonname =
- get_canon_name_from_addr(ip,&err);
- }
- if (ai->ai_canonname == NULL) {
- freeaddrinfo(ai);
- return err;
- }
- }
-
- *res = ai;
- return 0;
-}
-
-/*
- * get address info for multiple ipv4 addresses.
- *
- * Bugs: - servname can only be a number, not text.
- */
-
-static int getaddr_info_name(const char *node,
- const char *service,
- const struct addrinfo *hints,
- struct addrinfo **res)
-{
- struct addrinfo *listp = NULL, *prevp = NULL;
- char **pptr = NULL;
- int err;
- struct hostent *hp = NULL;
- unsigned short port = 0;
-
- if (service) {
- port = (unsigned short)atoi(service);
- }
-
- hp = gethostbyname(node);
- err = check_hostent_err(hp);
- if (err) {
- return err;
- }
-
- for(pptr = hp->h_addr_list; *pptr; pptr++) {
- struct in_addr ip = *(struct in_addr *)*pptr;
- struct addrinfo *ai = alloc_entry(hints, ip, port);
-
- if (!ai) {
- freeaddrinfo(listp);
- return EAI_MEMORY;
- }
-
- if (!listp) {
- listp = ai;
- prevp = ai;
- ai->ai_canonname = SMB_STRDUP(hp->h_name);
- if (!ai->ai_canonname) {
- freeaddrinfo(listp);
- return EAI_MEMORY;
- }
- } else {
- prevp->ai_next = ai;
- prevp = ai;
- }
- }
- *res = listp;
- return 0;
-}
-
-/*
- * get address info for ipv4 sockets.
- *
- * Bugs: - servname can only be a number, not text.
- */
-
-int rep_getaddrinfo(const char *node,
- const char *service,
- const struct addrinfo * hintp,
- struct addrinfo ** res)
-{
- struct addrinfo hints;
-
- /* Setup the hints struct. */
- if (hintp == NULL) {
- memset(&hints, 0, sizeof(hints));
- hints.ai_family = AF_INET;
- hints.ai_socktype = SOCK_STREAM;
- } else {
- memcpy(&hints, hintp, sizeof(hints));
- }
-
- if (hints.ai_family != AF_INET && hints.ai_family != AF_UNSPEC) {
- return EAI_FAMILY;
- }
-
- if (hints.ai_socktype == 0) {
- hints.ai_socktype = SOCK_STREAM;
- }
-
- if (!node && !service) {
- return EAI_NONAME;
- }
-
- if (node) {
- if (node[0] == '\0') {
- return getaddr_info_single_addr(service,
- INADDR_ANY,
- &hints,
- res);
- } else if (hints.ai_flags & AI_NUMERICHOST) {
- struct in_addr ip;
- if (!inet_aton(node, &ip)) {
- return EAI_FAIL;
- }
- return getaddr_info_single_addr(service,
- ntohl(ip.s_addr),
- &hints,
- res);
- } else {
- return getaddr_info_name(node,
- service,
- &hints,
- res);
- }
- } else if (hints.ai_flags & AI_PASSIVE) {
- return getaddr_info_single_addr(service,
- INADDR_ANY,
- &hints,
- res);
- }
- return getaddr_info_single_addr(service,
- INADDR_LOOPBACK,
- &hints,
- res);
-}
-
-
-void rep_freeaddrinfo(struct addrinfo *res)
-{
- struct addrinfo *next = NULL;
-
- for (;res; res = next) {
- next = res->ai_next;
- if (res->ai_canonname) {
- free(res->ai_canonname);
- }
- if (res->ai_addr) {
- free(res->ai_addr);
- }
- free(res);
- }
-}
-
-
-const char *rep_gai_strerror(int errcode)
-{
-#ifdef HAVE_HSTRERROR
- int hcode;
-
- switch (errcode)
- {
- case EAI_NONAME:
- hcode = HOST_NOT_FOUND;
- break;
- case EAI_AGAIN:
- hcode = TRY_AGAIN;
- break;
- case EAI_FAIL:
- default:
- hcode = NO_RECOVERY;
- break;
- }
-
- return hstrerror(hcode);
-#else /* !HAVE_HSTRERROR */
-
- switch (errcode)
- {
- case EAI_NONAME:
- return "Unknown host";
- case EAI_AGAIN:
- return "Host name lookup failure";
-#ifdef EAI_BADFLAGS
- case EAI_BADFLAGS:
- return "Invalid argument";
-#endif
-#ifdef EAI_FAMILY
- case EAI_FAMILY:
- return "Address family not supported";
-#endif
-#ifdef EAI_MEMORY
- case EAI_MEMORY:
- return "Not enough memory";
-#endif
-#ifdef EAI_NODATA
- case EAI_NODATA:
- return "No host data of that type was found";
-#endif
-#ifdef EAI_SERVICE
- case EAI_SERVICE:
- return "Class type not found";
-#endif
-#ifdef EAI_SOCKTYPE
- case EAI_SOCKTYPE:
- return "Socket type not supported";
-#endif
- default:
- return "Unknown server error";
- }
-#endif /* HAVE_HSTRERROR */
-}
-
-static int gethostnameinfo(const struct sockaddr *sa,
- char *node,
- size_t nodelen,
- int flags)
-{
- int ret = -1;
- char *p = NULL;
-
- if (!(flags & NI_NUMERICHOST)) {
- struct hostent *hp = gethostbyaddr(
- &((struct sockaddr_in *)sa)->sin_addr,
- sizeof(struct in_addr),
- sa->sa_family);
- ret = check_hostent_err(hp);
- if (ret == 0) {
- /* Name looked up successfully. */
- ret = snprintf(node, nodelen, "%s", hp->h_name);
- if (ret < 0 || (size_t)ret >= nodelen) {
- return EAI_MEMORY;
- }
- if (flags & NI_NOFQDN) {
- p = strchr(node,'.');
- if (p) {
- *p = '\0';
- }
- }
- return 0;
- }
-
- if (flags & NI_NAMEREQD) {
- /* If we require a name and didn't get one,
- * automatically fail. */
- return ret;
- }
- /* Otherwise just fall into the numeric host code... */
- }
- p = inet_ntoa(((struct sockaddr_in *)sa)->sin_addr);
- ret = snprintf(node, nodelen, "%s", p);
- if (ret < 0 || (size_t)ret >= nodelen) {
- return EAI_MEMORY;
- }
- return 0;
-}
-
-static int getservicenameinfo(const struct sockaddr *sa,
- char *service,
- size_t servicelen,
- int flags)
-{
- int ret = -1;
- int port = ntohs(((struct sockaddr_in *)sa)->sin_port);
-
- if (!(flags & NI_NUMERICSERV)) {
- struct servent *se = getservbyport(
- port,
- (flags & NI_DGRAM) ? "udp" : "tcp");
- if (se && se->s_name) {
- /* Service name looked up successfully. */
- ret = snprintf(service, servicelen, "%s", se->s_name);
- if (ret < 0 || (size_t)ret >= servicelen) {
- return EAI_MEMORY;
- }
- return 0;
- }
- /* Otherwise just fall into the numeric service code... */
- }
- ret = snprintf(service, servicelen, "%d", port);
- if (ret < 0 || (size_t)ret >= servicelen) {
- return EAI_MEMORY;
- }
- return 0;
-}
-
-/*
- * Convert an ipv4 address to a hostname.
- *
- * Bugs: - No IPv6 support.
- */
-int rep_getnameinfo(const struct sockaddr *sa, socklen_t salen,
- char *node, size_t nodelen,
- char *service, size_t servicelen, int flags)
-{
-
- /* Invalid arguments. */
- if (sa == NULL || (node == NULL && service == NULL)) {
- return EAI_FAIL;
- }
-
- if (sa->sa_family != AF_INET) {
- return EAI_FAIL;
- }
-
- if (salen < sizeof(struct sockaddr_in)) {
- return EAI_FAIL;
- }
-
- if (node) {
- return gethostnameinfo(sa, node, nodelen, flags);
- }
-
- if (service) {
- return getservicenameinfo(sa, service, servicelen, flags);
- }
- return 0;
-}
generated by cgit (git 2.34.1) at 2024-11-05 23:21:54 +0000