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author | Jelmer Vernooij <jelmer@samba.org> | 2008-10-21 14:51:13 +0200 |
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committer | Jelmer Vernooij <jelmer@samba.org> | 2008-10-21 14:51:13 +0200 |
commit | 5209a846a9157e649fcdcb561f7eaf19c8c0e465 (patch) | |
tree | b0a7e52b5646c8eec182dbc391e7934b6804488c /source3/lib/replace/getaddrinfo.c | |
parent | 625359b2e266105022309df8985720108ecd6f67 (diff) | |
parent | 2ee8d29d22bcb1c350ab59d71b0aee548489bc9c (diff) | |
download | samba-5209a846a9157e649fcdcb561f7eaf19c8c0e465.tar.gz samba-5209a846a9157e649fcdcb561f7eaf19c8c0e465.tar.bz2 samba-5209a846a9157e649fcdcb561f7eaf19c8c0e465.zip |
Merge branch 'master' of ssh://git.samba.org/data/git/samba into regsrv
Conflicts:
source4/lib/registry/ldb.c
source4/rpc_server/winreg/rpc_winreg.c
Diffstat (limited to 'source3/lib/replace/getaddrinfo.c')
-rw-r--r-- | source3/lib/replace/getaddrinfo.c | 497 |
1 files changed, 0 insertions, 497 deletions
diff --git a/source3/lib/replace/getaddrinfo.c b/source3/lib/replace/getaddrinfo.c deleted file mode 100644 index c5cd52be93..0000000000 --- a/source3/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; -} |