From 1fb05e3db1891142410bc58c320dfe281749fffe Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Wed, 19 Feb 1997 04:43:53 +0000 Subject: update from main archive 970218 1997-02-19 03:28 Miles Bader * 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 * 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 * sysdeps/unix/bsd/sun/sunos4/resourcebits.h: Correct #defin to #define. Reported by Rick Flower . 1997-02-19 01:37 Erik Troan * shadow/sgetspent_r.c: Accept empty third, fourth and fifth fields. 1997-02-19 01:02 Ulrich Drepper * sysdeps/unix/mman/syscalls.list: msync takes 3 arguments. Reported by Andreas Jaeger . * sysdeps/stub/msync.c (msync): Add missing third parameter. 1997-02-19 00:29 Ulrich Drepper * sysdeps/unix/bsd/sigsuspend.c: Call __sigpause with needed additional argument. 1997-02-18 22:13 Ulrich Drepper * 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 . * sysdeps/unix/sysv/linux/net/if_arp.h: Include . * sunrpc/rpc/rpc_msg.h: Include . Reported by a sun . 1997-02-16 14:25 Andreas Schwab * Makerules ((common-objpfx)distinfo-$(subdir)): Depend on sysdep makefiles which may change the distinfo variables. 1997-02-16 14:03 Andreas Schwab * sysdeps/unix/sysv/linux/Makefile (sysdep_headers) [$(subdir)=misc]: Add sys/quota.h. (sysdep_headers) [$(subdir)=inet]: Add netinet/udp.h. 1997-02-17 13:12 aleph1@dfw.net * sunrpc/clnt_simp.c (callrpc): Prevent buffer overflow by using strncpy. 1997-02-18 03:28 Ulrich Drepper * stdio-common/bug10.c (main): Correct parameter. 1997-02-17 02:51 Ulrich Drepper * malloc/obstack.h: Add `extern "C"' protection. * posix/regex.h: Likewise. * io/ftw.h: Likewise. * misc/libgen.h: Likewise. * login/utmp.h: Likewise. * sysdeps/unix/sysv/linux/sys/reboot.h: Likewise. * sysdeps/unix/sysv/linux/netinet/in.h: Likewise. * sunrpc/rpc/pmap_rmt.h: Likewise. * sunrpc/rpc/auth_des.h: Likewise. * elf/link.h: Likewise. Reported by HJ Lu. 1997-02-17 01:45 a sun Linux specific network headers. * sysdeps/unix/sysv/linux/netinet/if_fddi.h: New file. * sysdeps/unix/sysv/linux/netinet/if_tr.h: New file. * sysdeps/unix/sysv/linux/netinet/ip_icmp.h: New file. * sysdeps/unix/sysv/linux/netinet/ip_fw.h: New file. * sysdeps/unix/sysv/linux/netinet/igmp.h: New file. * sysdeps/unix/sysv/linux/netinet/icmp.h: New file. * sysdeps/unix/sysv/linux/netinet/ip.h: New file. * sysdeps/unix/sysv/linux/netinet/tcp.h: New file. * sysdeps/unix/sysv/linux/netipx/ipx.h: New file. * sysdeps/unix/sysv/linux/netatalk/atalk.h: New file. * sysdeps/unix/sysv/linux/Dist: Add new network headers. * sysdeps/unix/sysv/linux/Makefile [$(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 * misc/sys/syslog.h (prioritynames): Correct definition to use braces where necessary. (facilitynames): Likewise. Patch by Ronald F. Guilmette . Comment and beautify declarations. 1997-02-16 19:54 1997 Philip Blundell * 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 * 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 * 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 * 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 * 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 * 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 * 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). --- inet/getnameinfo.c | 238 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 238 insertions(+) create mode 100644 inet/getnameinfo.c (limited to 'inet/getnameinfo.c') 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 , 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 +#include + +#include +#if LOCAL +#include +#include +#endif /* LOCAL */ +#include +#include +#include +#include +#include + +#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; +}; -- cgit v1.2.3