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authorUlrich Drepper <drepper@redhat.com>1996-10-21 01:26:31 +0000
committerUlrich Drepper <drepper@redhat.com>1996-10-21 01:26:31 +0000
commit46ec036de624bf22daf2ad71780de8671ffa7565 (patch)
tree6dc28ac3e18b62999d9d1ad34792904282992d3c /sysdeps/posix
parent8145a97443a708443ed2c39e80e681a5c5354e92 (diff)
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update from main archive 961020cvs/libc-961021
Mon Oct 21 01:32:36 1996 Ulrich Drepper <drepper@cygnus.com> * elf/rtld.c (dl_main): Move initialization of `_dl_starting_up' to beginning of function. So libc functions can use this flag. * sysdeps/generic/_strerror.c: Don't use dgettext for message translation while `_dl_starting_up' is nonzero. * elf/dl-deps.c (_dl_map_object_deps): Add new parameter TRACE_MODE. Pass parameter value to _dl_map_object. * elf/dl-load (_dl_map_object): Add new parameter TRACE_MODE. If TRACE_MODE is nonzero don#t signal error when shared lib is not found. Instead create fake entry for link map. * dl-open.c (dl-open): Pass 0 for new argument to _dl_map_object. * dl-runtime.c (_dl_object_relocation_scope): Pass 0 for new argument to _dl_map_object_deps. * elf/link.h: Add new parameter TRACE_MODE for prototypes of _dl_map_object and _dl_map_object_deps. * elf/rtld.c (dl_main): Pass 0 for new argument to _dl_map_object and _dl_map_object_deps. When mode == trace test for l_opencount == 0 before printing link information since this means the lib is not found. Sun Oct 20 22:19:58 1996 Ulrich Drepper <drepper@cygnus.com> * rpm/template: Add INSTALL to %doc line to follow copyright restrictions which demand the distribution of the copyright messages in INSTALL even for binary distributions. * features.h: Rename to... * features.h.in: ...this. Change value of __GNU_LIBRARY__ to 2 (for major version numberof package) and add __GNU_LIBRARY_MINOR__ and __GNU_LIBRARY_INTERFACE__. * Makefile ($(objpfx)features.h): New rule to generate features.h from template features.h.in. * sysdeps/unix/sysv/linux/getsysstats.c: Include <paths.h>. Sun Oct 20 00:00:13 1996 Richard Henderson <rth@tamu.edu> * locale/programs/linereader.c (lr_open): Cast away const before free. (lr_close): Likewise. * misc/mntent.h: Move _PATH_MNTTAB & _PATH_MOUNTED to paths.h. * misc/paths.h: Move to ... * sysdeps/generic/paths.h: ... here. * paths.h: Remove. * sysdeps/unix/sysv/linux/paths.h: New file. Correct _PATH_STDPATH, _PATH_MAILDIR, _PATH_MOUNTED, _PATH_UNIX to comply with the fsstd. * nss/nss_db/db-netgrp.h: Include <string.h>. * stdio-common/psignal.c: De-ansidecl-ify. Allow NULL entries in _sys_siglist, which result in the "Unknown signal" message. * string/strsignal.c: Likewise. * sysdeps/generic/Makefile [stdio-common]: If $(inhibit-siglist), don't auto-generate siglist.c. * sysdeps/unix/sysv/linux/Makefile [stdio-common]: Set inhibit-siglist. * sysdeps/unix/sysv/linux/siglist.c: New file. Not needing to autogenerate makes bootstrapping and cross-compiling much easier. * sysdeps/unix/sysv/linux/siglist.h: New file. * stdlib/longlong.h: Prototype __udiv_qrnnd. * sysdeps/unix/sysv/linux/alpha/Makefile (sysdep_headers): Remove sys/io.h. It is already added in .../linux/Makefile. * sysdeps/unix/sysv/linux/alpha/sigaction.h: New file. * sysdeps/unix/sysv/linux/alpha/signum.h: New file. * sysdeps/unix/sysv/linux/alpha/statbuf.h: New file. Sun Oct 20 17:17:12 1996 Ulrich Drepper <drepper@cygnus.com> Add implementation of POSIX.1g function getaddrinfo. * posix/Makefile (routines): Add getaddrinfo. * sysdeps/posix/getaddrinfo.c.: New file. Add implementation by Craig Metz. * sysdeps/stub/getaddrinfo.c: New file. Stub implementation. * resolv/netdb.h [__USE_POSIX]: Add getaddrinfo prototypes and related constants and structures. Sun Oct 20 13:02:34 1996 Ulrich Drepper <drepper@cygnus.com> * sysdeps/stub/lockfile.c: Rename functions to __internal_*. Make all old names weak alises so that they can be replaced by libpthread. * stdio-common/vfprintf.c: Only declare __flockfile and __funlockfile for !USE_IN_LIBIO. [USE_IN_LIBIO]: Call _IO_flockfile and _IO_funlockfile instead of __flockfile and __funlockfile. Reported by NIIBE Yutaka. * crypt/md5.c: Change form of copyright message according to GNITS rules. Add warning for requirement on RESBUF parameter for `md5_finish_ctx' and `md5_read_ctx' function. * crypt/md5.h: Likewise. * grp/testgrp.c: Don't use perror for error cases since getgr* and getpw* functions do not return usable error codes. Sun Oct 19 23:05:32 1996 Jim Meyering <meyering@asic.sc.ti.com> * crypt/md5.c (md5_process_bytes): Used casting for pointer arithmetic. Sun Oct 20 03:53:23 1996 Ulrich Drepper <drepper@cygnus.com> * sunrpc/Makefile (others): Remove portmap here, too.
Diffstat (limited to 'sysdeps/posix')
-rw-r--r--sysdeps/posix/getaddrinfo.c487
1 files changed, 487 insertions, 0 deletions
diff --git a/sysdeps/posix/getaddrinfo.c b/sysdeps/posix/getaddrinfo.c
new file mode 100644
index 0000000000..823335d761
--- /dev/null
+++ b/sysdeps/posix/getaddrinfo.c
@@ -0,0 +1,487 @@
+/* The Inner Net License, Version 2.00
+
+ The author(s) grant permission for redistribution and use in source and
+binary forms, with or without modification, of the software and documentation
+provided that the following conditions are met:
+
+0. If you receive a version of the software that is specifically labelled
+ as not being for redistribution (check the version message and/or README),
+ you are not permitted to redistribute that version of the software in any
+ way or form.
+1. All terms of the all other applicable copyrights and licenses must be
+ followed.
+2. Redistributions of source code must retain the authors' copyright
+ notice(s), this list of conditions, and the following disclaimer.
+3. Redistributions in binary form must reproduce the authors' copyright
+ notice(s), this list of conditions, and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+4. All advertising materials mentioning features or use of this software
+ must display the following acknowledgement with the name(s) of the
+ authors as specified in the copyright notice(s) substituted where
+ indicated:
+
+ This product includes software developed by <name(s)>, The Inner
+ Net, and other contributors.
+
+5. Neither the name(s) of the author(s) nor the names of its contributors
+ may be used to endorse or promote products derived from this software
+ without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY ITS AUTHORS AND CONTRIBUTORS ``AS IS'' AND ANY
+EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR ANY
+DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+ If these license terms cause you a real problem, contact the author. */
+
+/* This software is Copyright 1996 by Craig Metz, All Rights Reserved. */
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <stdlib.h>
+#include <netinet/in.h>
+#ifdef INET6
+#include <netinet6/in6.h>
+#endif /* INET6 */
+#include <netdb.h>
+
+
+#define GAIH_OKIFUNSPEC 0x0100
+#define GAIH_EAI ~(GAIH_OKIFUNSPEC)
+
+#ifdef HOSTTABLE
+struct hostent *_hostname2addr_hosts(const char *name, int);
+struct hostent *_addr2hostname_hosts(const char *name, int, int);
+#endif /* HOSTTABLE */
+
+static struct addrinfo nullreq =
+{ 0, PF_UNSPEC, 0, 0, 0, NULL, NULL, NULL };
+
+struct gaih_service {
+ char *name;
+ unsigned long num;
+};
+
+struct gaih_servtuple {
+ struct gaih_servtuple *next;
+ int socktype;
+ int protocol;
+ int port;
+};
+
+static struct gaih_servtuple nullserv = {
+ NULL, 0, 0, 0
+};
+
+struct gaih_addrtuple {
+ struct gaih_addrtuple *next;
+ int family;
+ char addr[16];
+};
+
+static struct gaih_addrtuple nulladdr;
+
+struct gaih_typeproto {
+ int socktype;
+ int protocol;
+ char *name;
+};
+
+static struct gaih_typeproto gaih_inet_typeproto[] = {
+ { 0, 0, NULL },
+ { SOCK_STREAM, IPPROTO_TCP, "tcp" },
+ { SOCK_DGRAM, IPPROTO_UDP, "udp" },
+ { 0, 0, NULL }
+};
+
+static int gaih_inet_serv(char *servicename, struct gaih_typeproto *tp, struct gaih_servtuple **st)
+{
+ struct servent *s;
+
+ if (!(s = getservbyname(servicename, tp->name)))
+ return (GAIH_OKIFUNSPEC | -EAI_SERVICE);
+
+ if (!(*st = malloc(sizeof(struct gaih_servtuple))))
+ return -EAI_MEMORY;
+
+ (*st)->next = NULL;
+ (*st)->socktype = tp->socktype;
+ (*st)->protocol = tp->protocol;
+ (*st)->port = s->s_port;
+
+ return 0;
+}
+
+static int gaih_inet(const char *name, const struct gaih_service *service,
+ const struct addrinfo *req, struct addrinfo **pai)
+{
+ struct hostent *h = NULL;
+ struct gaih_typeproto *tp = gaih_inet_typeproto;
+ struct gaih_servtuple *st = &nullserv;
+ struct gaih_addrtuple *at = &nulladdr;
+ int i;
+
+ if (req->ai_protocol || req->ai_socktype) {
+ for (tp++; tp->name &&
+ ((req->ai_socktype != tp->socktype) || !req->ai_socktype) &&
+ ((req->ai_protocol != tp->protocol) || !req->ai_protocol); tp++);
+ if (!tp->name)
+ if (req->ai_socktype)
+ return (GAIH_OKIFUNSPEC | -EAI_SOCKTYPE);
+ else
+ return (GAIH_OKIFUNSPEC | -EAI_SERVICE);
+ }
+
+ if (service) {
+ if (service->name) {
+ if (tp->name) {
+ if (i = gaih_inet_serv(service->name, tp, &st))
+ return i;
+ } else {
+ struct gaih_servtuple **pst = &st;
+ for (tp++; tp->name; tp++) {
+ if (i = gaih_inet_serv(service->name, tp, pst)) {
+ if (i & GAIH_OKIFUNSPEC)
+ continue;
+ goto ret;
+ }
+ pst = &((*pst)->next);
+ }
+ if (st == &nullserv) {
+ i = (GAIH_OKIFUNSPEC | -EAI_SERVICE);
+ goto ret;
+ }
+ }
+ } else {
+ if (!(st = malloc(sizeof(struct gaih_servtuple))))
+ return -EAI_MEMORY;
+
+ st->next = NULL;
+ st->socktype = tp->socktype;
+ st->protocol = tp->protocol;
+ st->port = htons(service->num);
+ }
+ }
+
+ if (name) {
+ if (!(at = malloc(sizeof(struct gaih_addrtuple)))) {
+ i = -EAI_MEMORY;
+ goto ret;
+ }
+
+ at->family = 0;
+ at->next = NULL;
+
+ if (!at->family || !req->ai_family || (req->ai_family == AF_INET))
+ if (inet_pton(AF_INET, name, at->addr) > 0)
+ at->family = AF_INET;
+
+#ifdef INET6
+ if (!at->family && (!req->ai_family || (req->ai_family == AF_INET6)))
+ if (inet_pton(AF_INET6, name, at->addr) > 0)
+ at->family = AF_INET6;
+#endif /* INET6 */
+
+#ifdef HOSTTABLE
+ if (!at->family) {
+ struct hostent *h;
+ struct gaih_addrtuple **pat = &at;
+
+#ifdef INET6
+ if (!req->ai_family || (req->ai_family == AF_INET6))
+ if (h = _hostname2addr_hosts(name, AF_INET6)) {
+ for (i = 0; h->h_addr_list[i]; i++) {
+ if (!*pat) {
+ if (!(*pat = malloc(sizeof(struct gaih_addrtuple)))) {
+ i = -EAI_MEMORY;
+ goto ret;
+ }
+ }
+ (*pat)->next = NULL;
+ (*pat)->family = AF_INET6;
+ memcpy((*pat)->addr, h->h_addr_list[i], sizeof(struct in6_addr));
+ pat = &((*pat)->next);
+ }
+ }
+#endif /* INET6 */
+
+ if (!req->ai_family || (req->ai_family == AF_INET))
+ if (h = _hostname2addr_hosts(name, AF_INET)) {
+ for (i = 0; h->h_addr_list[i]; i++) {
+ if (!*pat) {
+ if (!(*pat = malloc(sizeof(struct gaih_addrtuple)))) {
+ i = -EAI_MEMORY;
+ goto ret;
+ }
+ }
+ (*pat)->next = NULL;
+ (*pat)->family = AF_INET;
+ memcpy((*pat)->addr, h->h_addr_list[i], sizeof(struct in_addr));
+ pat = &((*pat)->next);
+ }
+ }
+ }
+#endif /* HOSTTABLE */
+
+#ifdef RESOLVER
+ if (!at->family) {
+ struct hostent *h;
+ struct gaih_addrtuple **pat = &at;
+
+#ifdef INET6
+ if (!req->ai_family || (req->ai_family == AF_INET6))
+ if (h = gethostbyname2(name, AF_INET6)) {
+ for (i = 0; h->h_addr_list[i]; i++) {
+ if (!*pat) {
+ if (!(*pat = malloc(sizeof(struct gaih_addrtuple)))) {
+ i = -EAI_MEMORY;
+ goto ret;
+ }
+ }
+ (*pat)->next = NULL;
+ (*pat)->family = AF_INET6;
+ memcpy((*pat)->addr, h->h_addr_list[i], sizeof(struct in6_addr));
+ pat = &((*pat)->next);
+ }
+ }
+#endif /* INET6 */
+
+ if (!req->ai_family || (req->ai_family == AF_INET))
+ if (h = gethostbyname2(name, AF_INET)) {
+ for (i = 0; h->h_addr_list[i]; i++) {
+ if (!*pat) {
+ if (!(*pat = malloc(sizeof(struct gaih_addrtuple)))) {
+ i = -EAI_MEMORY;
+ goto ret;
+ }
+ }
+ (*pat)->next = NULL;
+ (*pat)->family = AF_INET;
+ memcpy((*pat)->addr, h->h_addr_list[i], sizeof(struct in_addr));
+ pat = &((*pat)->next);
+ }
+ }
+ }
+#endif /* RESOLVER */
+
+ if (!at->family)
+ return (GAIH_OKIFUNSPEC | -EAI_NONAME);
+ } else {
+ memset(&nulladdr, 0, sizeof(nulladdr));
+#ifdef INET6
+ if (!req->ai_family || (req->ai_family == AF_INET6))
+ nulladdr.family = AF_INET6;
+ else
+#endif /* INET6 */
+ nulladdr.family = AF_INET;
+ }
+
+ {
+ const char *c = NULL;
+ struct gaih_servtuple *st2;
+ struct gaih_addrtuple *at2 = at;
+ int j;
+
+ while(at2) {
+ if (req->ai_flags & AI_CANONNAME) {
+ struct hostent *h = NULL;
+
+#ifdef RESOLVER
+ h = gethostbyaddr(at2->addr,
+#ifdef INET6
+ (at2->family == AF_INET6) ? sizeof(struct in6_addr) :
+#endif /* INET6 */
+ sizeof(struct in_addr), at2->family);
+#endif /* RESOLVER */
+#ifdef HOSTTABLE
+ if (!h)
+ h = _addr2hostname_hosts(at2->addr,
+#ifdef INET6
+ (at2->family == AF_INET6) ? sizeof(struct in6_addr) :
+#endif /* INET6 */
+ sizeof(struct in_addr), at2->family);
+#endif /* HOSTTABLE */
+
+ if (!h) {
+ c = inet_ntop(at2->family, at2->addr, NULL, 0);
+ } else
+ c = h->h_name;
+
+ if (!c) {
+ i = (GAIH_OKIFUNSPEC | -EAI_NONAME);
+ goto ret;
+ }
+
+ j = strlen(c) + 1;
+ } else
+ j = 0;
+
+#ifdef INET6
+ if (at2->family == AF_INET6)
+ i = sizeof(struct sockaddr_in6);
+ else
+#endif /* INET6 */
+ i = sizeof(struct sockaddr_in);
+
+ st2 = st;
+ while(st2) {
+ if (!(*pai = malloc(sizeof(struct addrinfo) + i + j))) {
+ i = -EAI_MEMORY;
+ goto ret;
+ }
+ (*pai)->ai_flags = req->ai_flags;
+ (*pai)->ai_family = at2->family;
+ (*pai)->ai_socktype = st2->socktype;
+ (*pai)->ai_protocol = st2->protocol;
+ (*pai)->ai_addrlen = i;
+ (*pai)->ai_addr = (void *)(*pai) + sizeof(struct addrinfo);
+#if SALEN
+ ((struct sockaddr_in *)(*pai)->ai_addr)->sin_len = i;
+#endif /* SALEN */
+ ((struct sockaddr_in *)(*pai)->ai_addr)->sin_family = at2->family;
+ ((struct sockaddr_in *)(*pai)->ai_addr)->sin_port = st2->port;
+
+#ifdef INET6
+ if (at2->family == AF_INET6) {
+ ((struct sockaddr_in6 *)(*pai)->ai_addr)->sin6_flowinfo = 0;
+ memcpy(&((struct sockaddr_in6 *)(*pai)->ai_addr)->sin6_addr, at2->addr, sizeof(struct in6_addr));
+ } else
+#endif /* INET6 */
+ {
+ memcpy(&((struct sockaddr_in *)(*pai)->ai_addr)->sin_addr, at2->addr, sizeof(struct in_addr));
+ memset(((struct sockaddr_in *)(*pai)->ai_addr)->sin_zero, 0, sizeof(((struct sockaddr_in *)(*pai)->ai_addr)->sin_zero));
+ }
+
+ if (c) {
+ (*pai)->ai_canonname = (void *)(*pai) + sizeof(struct addrinfo) + i;
+ strcpy((*pai)->ai_canonname, c);
+ } else
+ (*pai)->ai_canonname = NULL;
+ (*pai)->ai_next = NULL;
+
+ pai = &((*pai)->ai_next);
+
+ st2 = st2->next;
+ }
+ at2 = at2->next;
+ }
+ }
+
+ i = 0;
+
+ret:
+ if (st != &nullserv) {
+ struct gaih_servtuple *st2 = st;
+ while(st) {
+ st2 = st->next;
+ free(st);
+ st = st2;
+ }
+ }
+ if (at != &nulladdr) {
+ struct gaih_addrtuple *at2 = at;
+ while(at) {
+ at2 = at->next;
+ free(at);
+ at = at2;
+ }
+ }
+ return i;
+}
+
+struct gaih {
+ int family;
+ int (*gaih)(const char *name, const struct gaih_service *service,
+ const struct addrinfo *req, struct addrinfo **pai);
+};
+
+static struct gaih gaih[] = {
+#ifdef INET6
+ { PF_INET6, gaih_inet },
+#endif /* INET6 */
+ { PF_INET, gaih_inet },
+ { PF_UNSPEC, NULL }
+};
+
+int getaddrinfo(const char *name, const char *service,
+ const struct addrinfo *req, struct addrinfo **pai)
+{
+ int i, j = 0;
+ struct addrinfo *p = NULL, **end = &p;
+ struct gaih *g = gaih, *pg = NULL;
+ struct gaih_service gaih_service, *pservice;
+
+ if (!name && !service)
+ return EAI_NONAME;
+
+ if (!req)
+ req = &nullreq;
+
+ if (req->ai_flags & ~3)
+ return EAI_BADFLAGS;
+
+ if ((req->ai_flags & AI_CANONNAME) && !name)
+ return EAI_BADFLAGS;
+
+ if (service && *service) {
+ char *c;
+ gaih_service.num = strtoul(gaih_service.name = (void *)service, &c, 10);
+ if (!*c) {
+ if (!req->ai_socktype)
+ return EAI_SERVICE;
+ gaih_service.name = NULL;
+ }
+ pservice = &gaih_service;
+ } else
+ pservice = NULL;
+
+ while(g->gaih) {
+ if ((req->ai_family == g->family) || !req->ai_family) {
+ j++;
+ if (!((pg && (pg->gaih == g->gaih)))) {
+ pg = g;
+ if (i = g->gaih(name, pservice, req, end)) {
+ if (!req->ai_family && (i & GAIH_OKIFUNSPEC))
+ continue;
+ goto gaih_err;
+ }
+ while(*end) end = &((*end)->ai_next);
+ }
+ }
+ g++;
+ }
+
+ if (!j)
+ return EAI_FAMILY;
+
+ if (p) {
+ *pai = p;
+ return 0;
+ }
+
+gaih_err:
+ if (p)
+ freeaddrinfo(p);
+
+ if (i)
+ return -(i & GAIH_EAI);
+
+ return EAI_NONAME;
+}
+
+void freeaddrinfo(struct addrinfo *ai)
+{
+ struct addrinfo *p;
+
+ while(ai) {
+ p = ai;
+ ai = ai->ai_next;
+ free((void *)p);
+ }
+}