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authorUlrich Drepper <drepper@redhat.com>1997-02-19 04:43:53 +0000
committerUlrich Drepper <drepper@redhat.com>1997-02-19 04:43:53 +0000
commit1fb05e3db1891142410bc58c320dfe281749fffe (patch)
tree46299dbecec282055e3493787910444e77099fe7 /inet/getnameinfo.c
parentc84142e8fe3cbcce43ae35ac957a74ac8216d11d (diff)
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update from main archive 970218cvs/libc-970221cvs/libc-970220cvs/libc-970219
1997-02-19 03:28 Miles Bader <miles@gnu.ai.mit.edu> * argp/argp-help.c: Add support for user provided filter of help messages. * argp/argp-parse.c: Likewise. * argp/argp.h: Likewise. * argp/argp-namefrob.h: Define __argp_input. * argp/argp-test.c: Add example for filter. 1997-02-19 02:58 Ulrich Drepper <drepper@cygnus.com> * argp.h: New file. * locale/programs/locale.c: Switch to use argp. * errno.h: Make it possible to get definition of error_t even after having errno.h already. * elf/dl-hash.h: New file. ELF hashing function. Extracted from dl-lookup.c. * elf/dl-lookup.c (_dl_elf_hash): Remove definition. * elf/dl-load.c: Rename _dl_does_name_match_p to _dl_name_match_p. * elf/dl-version.c: Likewise. * elf/dl-lookup.c: Implement new versioning lookup scheme. * elf/dl-version.c (_dl_check_map_versions): Initialize new field in l_versions member. * elf/dlvsym.c: Correct call of _dl_lookup_versioned_symbol_skip and _dl_lookup_versioned_symbol. * elf/link.h: Rename hash_name_pair to struct r_found_version. * sysdeps/alpha/dl-machine.h: Likewise. * sysdeps/i386/dl-machine.h: Likewise. * sysdeps/m68k/dl-machine.h: Likewise. * sysdeps/mips/dl-machine.h: Likewise. * intl/l10nflist.c: (_nl_make_l10nflist): Fix bug in computation of length of abs_filename. * locale/Makefile (CPPFLAGS): Define LOCALE_ALIAS_PATH. * locale/programs/ld-monetary.c (monetary_add): Allow value 0 in mon_grouping information. This means no more grouping. * locale/programs/ld-numeric.c (numeric_add): Write value \377 when seein value 0 in grouping information. * locale/programs/linereader.c (lr_close): Don't free fname since it might be used in error messages. * locale/programs/locale.c: Check whether output of `locale -a' really is locale directory. Also print locale aliases. * misc/search.h (__action_fn_t): Parameters VALUE and LEVEL cannot be const. 1997-02-19 02:16 Ulrich Drepper <drepper@cygnus.com> * sysdeps/unix/bsd/sun/sunos4/resourcebits.h: Correct #defin to #define. Reported by Rick Flower <FLOWER@sdvax2.sdd.TRW.COM>. 1997-02-19 01:37 Erik Troan <ewt@redhat.com> * shadow/sgetspent_r.c: Accept empty third, fourth and fifth fields. 1997-02-19 01:02 Ulrich Drepper <drepper@cygnus.com> * sysdeps/unix/mman/syscalls.list: msync takes 3 arguments. Reported by Andreas Jaeger <aj@arthur.pfalz.de>. * sysdeps/stub/msync.c (msync): Add missing third parameter. 1997-02-19 00:29 Ulrich Drepper <drepper@cygnus.com> * sysdeps/unix/bsd/sigsuspend.c: Call __sigpause with needed additional argument. 1997-02-18 22:13 Ulrich Drepper <drepper@cygnus.com> * inet/net/ethernet.h: New file. * sysdeps/unix/sysv/linux/netinet/if_ether.c: Add BSD compatibility. * sysdeps/unix/sysv/linux/net/if_slip.h: New file. Contributed by a sun <asun@zoology.washington.edu>. * sysdeps/unix/sysv/linux/net/if_arp.h: Include <sys/socket.h>. * sunrpc/rpc/rpc_msg.h: Include <rpc/clnt.h>. Reported by a sun <asun@zoology.washington.edu>. 1997-02-16 14:25 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * Makerules ((common-objpfx)distinfo-$(subdir)): Depend on sysdep makefiles which may change the distinfo variables. 1997-02-16 14:03 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/unix/sysv/linux/Makefile (sysdep_headers) [$(subdir)=misc]: Add sys/quota.h. (sysdep_headers) [$(subdir)=inet]: Add netinet/udp.h. 1997-02-17 13:12 aleph1@dfw.net * sunrpc/clnt_simp.c (callrpc): Prevent buffer overflow by using strncpy. 1997-02-18 03:28 Ulrich Drepper <drepper@cygnus.com> * stdio-common/bug10.c (main): Correct parameter. 1997-02-17 02:51 Ulrich Drepper <drepper@cygnus.com> * malloc/obstack.h: Add `extern "C"' protection. * posix/regex.h: Likewise. * io/ftw.h: Likewise. * misc/libgen.h: Likewise. * login/utmp.h: Likewise. * sysdeps/unix/sysv/linux/sys/reboot.h: Likewise. * sysdeps/unix/sysv/linux/netinet/in.h: Likewise. * sunrpc/rpc/pmap_rmt.h: Likewise. * sunrpc/rpc/auth_des.h: Likewise. * elf/link.h: Likewise. Reported by HJ Lu. 1997-02-17 01:45 a sun <asun@zoology.washington.edu> Linux specific network headers. * sysdeps/unix/sysv/linux/netinet/if_fddi.h: New file. * sysdeps/unix/sysv/linux/netinet/if_tr.h: New file. * sysdeps/unix/sysv/linux/netinet/ip_icmp.h: New file. * sysdeps/unix/sysv/linux/netinet/ip_fw.h: New file. * sysdeps/unix/sysv/linux/netinet/igmp.h: New file. * sysdeps/unix/sysv/linux/netinet/icmp.h: New file. * sysdeps/unix/sysv/linux/netinet/ip.h: New file. * sysdeps/unix/sysv/linux/netinet/tcp.h: New file. * sysdeps/unix/sysv/linux/netipx/ipx.h: New file. * sysdeps/unix/sysv/linux/netatalk/atalk.h: New file. * sysdeps/unix/sysv/linux/Dist: Add new network headers. * sysdeps/unix/sysv/linux/Makefile [$(subdir)=misc] (sysdep_headers): Add sys/quota.h. [$(subdir)=inet] (sysdep_headers): Add new network header. * sysdeps/unix/sysv/linux/netinet/udp.h: Add Linux specific changes. * inet/netinet/ip.h: Move to sysdeps/generic. * inet/netinet/tcp.h: Likewise. * sysdeps/generic/netinet/ip.h: Moved to here from inet/netinet. * sysdeps/generic/netinet/tcp.h: Likewise. 1997-02-17 01:18 Ulrich Drepper <drepper@cygnus.com> * misc/sys/syslog.h (prioritynames): Correct definition to use braces where necessary. (facilitynames): Likewise. Patch by Ronald F. Guilmette <rfg@monkeys.com>. Comment and beautify declarations. 1997-02-16 19:54 1997 Philip Blundell <Philip.Blundell@pobox.com> * inet/Makefile (routines): Add in6_addr, getnameinfo. * inet/getnameinfo.c: New file. Implementation of getnameinfo() by Craig Metz. * inet/in6_addr.c: New file. IPv6 addressing constants. * posix/Makefile (routines): Add gai_strerror. * resolv/netdb.h: Add more constants for IPv6 basic API. * sysdeps/posix/gai_strerror.c: New file. * sysdeps/stub/gai_strerror.c New file. * sysdeps/unix/sysv/linux/netinet/in.h: Add definitions for IPv6 basic API. * sysdeps/posix/getaddrinfo.c: Update from latest version by Craig Metz and use reentrant getXXbyYY functions. 1997-02-15 14:32 Andreas Jaeger <aj@arthur.pfalz.de> * argp/argp.h: Declare argp_program_version as const char. * argp/argp-test.c: Likewise * stdlib/testrand.c (main): Declare main prototype. * stdlib/testdiv.c (main): Likewise. * string/testcopy.c (main): Likewise. * string/test-ffs.c (main): Likewise. * time/test_time.c (main): Likewise. * locale/duplocale.c (__duplocale): Return result. 1997-02-16 03:54 Ulrich Drepper <drepper@cygnus.com> * sysdeps/unix/sysv/linux/netinet/in.h: Declare bindresvport. Reported by fabsoft@fabserver1.zarm.uni-bremen.de. * nss/nss.h: Remove declaration of __nss_shlib_revision. * nss/nsswitch.c: Don't use NSS_SHLIB_VERSION macro. 1997-02-16 03:48 Thorsten Kukuk <kukuk@weber.uni-paderborn.de> * nis/nss_nis/nis-ethers.c (_nss_nis_getethernam_r): Rename to _nss_nis_gethostton_r. (_nss_nis_getetherbyaddr_r): Rename to _nss_nis_getntohost_r. 1997-02-15 22:37 Andy Berkheimer <andy@tho.org> * resolv/gethnamaddr.c (gethostbyname2): Test for ':' in name before trying to resolv name as numeric IPv6 address. * nss/digits_dots.c: Likewise. Sat Feb 15 04:51:08 1997 Ulrich Drepper <drepper@cygnus.com> * locale/setlocale.c (setlocale): Don't try to be clever about unused locales. When the existence of the locale files isn't tested the result of setlocale might be different. 1997-02-15 03:34 Ulrich Drepper <drepper@cygnus.com> * locale/setlocale.c (setlocale): Don't increment usage_count of new locale if it already has the value MAX_USAGE_COUNT (it might be the C locale data which is read-only).
Diffstat (limited to 'inet/getnameinfo.c')
-rw-r--r--inet/getnameinfo.c238
1 files changed, 238 insertions, 0 deletions
diff --git a/inet/getnameinfo.c b/inet/getnameinfo.c
new file mode 100644
index 0000000000..b9454f6396
--- /dev/null
+++ b/inet/getnameinfo.c
@@ -0,0 +1,238 @@
+/* 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. */
+
+#define INET6 1
+#define LOCAL 1
+#define HOSTTABLE 0
+
+#include <sys/types.h>
+#include <sys/socket.h>
+
+#include <netinet/in.h>
+#if LOCAL
+#include <sys/un.h>
+#include <sys/utsname.h>
+#endif /* LOCAL */
+#include <netdb.h>
+#include <errno.h>
+#include <string.h>
+#include <stdio.h>
+#include <unistd.h>
+
+#ifndef AF_LOCAL
+#define AF_LOCAL AF_UNIX
+#endif /* AF_LOCAL */
+
+#if HOSTTABLE
+struct hostent *_addr2hostname_hosts(const char *, int, int);
+#endif /* HOSTTABLE */
+
+#ifndef MAXHOSTNAMELEN
+#define MAXHOSTNAMELEN 128
+#endif
+
+#ifndef min
+#define min(x,y) (((x) > (y)) ? (y) : (x))
+#endif /* min */
+
+static char *domain;
+static char domainbuffer[MAXHOSTNAMELEN];
+
+
+static char *
+nrl_domainname (void)
+{
+ static int first = 1;
+
+ if (first) {
+ char *c;
+ struct hostent *h;
+
+ first = 0;
+
+ if ((h = gethostbyname("localhost")) && (c = strchr(h->h_name, '.')))
+ return strcpy(domain = domainbuffer, ++c);
+
+ if (!gethostname(domainbuffer, sizeof(domainbuffer))) {
+ if (c = strchr(domainbuffer, '.'))
+ return (domain = ++c);
+
+ if ((h = gethostbyname(domainbuffer)) && (c = strchr(h->h_name, '.')))
+ return strcpy(domain = domainbuffer, ++c);
+ }
+
+ {
+ struct in_addr in_addr;
+
+ in_addr.s_addr = htonl(0x7f000001);
+
+ if ((h = gethostbyaddr((const char *)&in_addr, sizeof(struct in_addr), AF_INET)) && (c = strchr(h->h_name, '.')))
+ return strcpy(domain = domainbuffer, ++c);
+ }
+
+ return NULL;
+ };
+
+ return domain;
+};
+
+int getnameinfo(const struct sockaddr *sa, size_t addrlen, char *host, size_t hostlen, char *serv, size_t servlen, int flags)
+{
+ int serrno = errno;
+
+ if (!sa)
+ return -1;
+
+ if (host && (hostlen > 0))
+ switch(sa->sa_family) {
+ case AF_INET:
+#if INET6
+ case AF_INET6:
+#endif /* INET6 */
+ if (!(flags & NI_NUMERICHOST)) {
+ struct hostent *h = NULL;
+#if HOSTTABLE
+#if INET6
+ if (sa->sa_family == AF_INET6)
+ h = _addr2hostname_hosts((void *)&(((struct sockaddr_in6 *)sa)->sin6_addr), sizeof(struct in6_addr), AF_INET6);
+ else
+#endif /* INET6 */
+ h = _addr2hostname_hosts((void *)&(((struct sockaddr_in *)sa)->sin_addr), sizeof(struct in_addr), AF_INET);
+#endif /* HOSTTABLE */
+
+#if RESOLVER
+ if (!h) {
+#if INET6
+ if (sa->sa_family == AF_INET6)
+ h = gethostbyaddr((void *)&(((struct sockaddr_in6 *)sa)->sin6_addr), sizeof(struct in6_addr), AF_INET6);
+ else
+#endif /* INET6 */
+ h = gethostbyaddr((void *)&(((struct sockaddr_in *)sa)->sin_addr), sizeof(struct in_addr), AF_INET);
+ endhostent();
+ };
+#endif /* RESOLVER */
+
+ if (h) {
+ if (flags & NI_NOFQDN) {
+ char *c;
+ if ((c = nrl_domainname()) && (c = strstr(h->h_name, c)) && (c != h->h_name) && (*(--c) == '.')) {
+ strncpy(host, h->h_name, min(hostlen, (c - h->h_name)));
+ break;
+ };
+ };
+ strncpy(host, h->h_name, hostlen);
+ break;
+ };
+ };
+
+ if (flags & NI_NAMEREQD)
+ goto fail;
+
+ {
+ const char *c;
+#if INET6
+ if (sa->sa_family == AF_INET6)
+ c = inet_ntop(AF_INET6, (void *)&(((struct sockaddr_in6 *)sa)->sin6_addr), host, hostlen);
+ else
+#endif /* INET6 */
+ c = inet_ntop(AF_INET, (void *)&(((struct sockaddr_in *)sa)->sin_addr), host, hostlen);
+
+ if (!c)
+ goto fail;
+ };
+ break;
+#if LOCAL
+ case AF_LOCAL:
+ if (!(flags & NI_NUMERICHOST)) {
+ struct utsname utsname;
+
+ if (!uname(&utsname)) {
+ strncpy(host, utsname.nodename, hostlen);
+ break;
+ };
+ };
+
+ if (flags & NI_NAMEREQD)
+ goto fail;
+
+ strncpy(host, "localhost", hostlen);
+ break;
+#endif /* LOCAL */
+ default:
+ return -1;
+ };
+
+ if (serv && (servlen > 0))
+ switch(sa->sa_family) {
+ case AF_INET:
+#if INET6
+ case AF_INET6:
+#endif /* INET6 */
+ if (!(flags & NI_NUMERICSERV)) {
+ struct servent *s;
+ if (s = getservbyport(((struct sockaddr_in *)sa)->sin_port, (flags & NI_DGRAM) ? "udp" : "tcp")) {
+ strncpy(serv, s->s_name, servlen);
+ break;
+ };
+ };
+ snprintf(serv, servlen, "%d", ntohs(((struct sockaddr_in *)sa)->sin_port));
+ break;
+#if LOCAL
+ case AF_LOCAL:
+ strncpy(serv, ((struct sockaddr_un *)sa)->sun_path, servlen);
+ break;
+#endif /* LOCAL */
+ };
+
+ if (host && (hostlen > 0))
+ host[hostlen-1] = 0;
+ if (serv && (servlen > 0))
+ serv[servlen-1] = 0;
+ errno = serrno;
+ return 0;
+
+fail:
+ errno = serrno;
+ return -1;
+};