glibc/inet/inet_net.c

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/*
* Copyright (c) 1983, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 4. Neither the name of the University 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 THE REGENTS 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 REGENTS 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 defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)inet_network.c 8.1 (Berkeley) 6/4/93";
#endif /* LIBC_SCCS and not lint */
#include <sys/types.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <ctype.h>
/*
* Internet network address interpretation routine.
* The library routines call this routine to interpret
* network numbers.
*/
u_int32_t
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inet_network(cp)
register const char *cp;
{
update from main archive 961116 Sun Nov 17 03:13:57 1996 Ulrich Drepper <drepper@cygnus.com> * db/makedb.c: Update and reformat copyright. * elf/Makefile: Likewise. * elf/dl-close.c: Likewise. * elf/dl-debug.c: Likewise. * elf/dl-deps.c: Likewise. * elf/dl-error.c: Likewise. * elf/dl-fini.c: Likewise. * elf/dl-init.c: Likewise. * elf/dl-load.c: Likewise. * elf/dl-lookup.c: Likewise. * elf/dl-minimal.c: Likewise. * elf/dl-object.c: Likewise. * elf/dl-open.c: Likewise. * elf/dl-reloc.c: Likewise. * elf/dl-runtime.c: Likewise. * elf/dl-support.c: Likewise. * elf/dl-symbol.c: Likewise. * elf/dladdr.c: Likewise. * elf/dlclose.c: Likewise. * elf/dlerror.c: Likewise. * elf/dlopen.c: Likewise. * elf/dlsym.c: Likewise. * elf/do-rel.h: Likewise. * elf/dynamic-link.h: Likewise. * elf/eval.c: Likewise. * elf/rtld.c: Likewise. * inet/ether_hton.c: Likewise. * inet/ether_ntoh.c: Likewise. * inet/ether_line.c: Likewise. * inet/getnetgrent_r.c: Likewise. * inet/Makefile (+gccwarn): Remove definition. Instead set CFLAGS-rcmd.c, CFLAGS-rexec.c, and CFLAGS-ruserpass.c to `-w'. * inet/aliases.h: Add C++ protection. * inet/ether_hton.c: Add prototype for __nss_ethers_lookup. (ether_hostton): Remove unused variable result. * inet/ether_ntoh.c: Likewise. * inet/ether_line.c: Include <ctype.h> and <string.h>. * inet/getnetgrent_r.c: Include <stdlib.h>. Use casts to prevent warnings. (innetgr): Initialize `known' and `needed'. * inet/inet_net.c: Make local variable `i' of type u_int32_t. * nss/getXXbyYY_r.c (INTERNAL (REENTRANT_NAME)) [NEED__RES]: Don't return NULL. Instead set *RESULT to NULL and return -1. * nss/getXXent_r.c (INTERNAL (REENTRANT_GETNAME)): Likewise. (SETFUNC_NAME, ENDFUNC_NAME) [NEED__RES]: Don't return anything. * nss/nss_files/files-alias.c: Debug function. I didn't worked at all before. Sat Nov 16 15:25:34 1996 Ulrich Drepper <drepper@cygnus.com> * sysdeps/posix/readv.c: Don't use PTR anymore. * sysdeps/posix/writev.c: Likewise. * version.h (VERSION): Bump to 1.98. * nss/db-Makefile: Generate lines for getXXXent iteration. * sysdeps/alpha/Dist: Don't distribute removed files divlu.S, divqu.S, remlu.S, and remqu.S. Fri Nov 15 08:55:54 1996 Andreas Jaeger <aj@arthur.pfalz.de> * posix/unistd.h: Correct typo in documentation. Thu Nov 14 18:08:14 1996 a sun <asun@zoology.washington.edu> * inet/netinet/tcp.h: Use __ protected versions instead of BYTE_ORDER, LITTLE_ENDIAN, and BIG_ENDIAN directly. Sat Nov 16 13:44:55 1996 Ulrich Drepper <drepper@cygnus.com> * intl/loadmsgcat.c (_nl_msg_cat_cntr): Initialize so that references in libc.so are not anymore undefined. Sat Nov 16 18:17:36 1996 NIIBE Yutaka <gniibe@mri.co.jp> * io/utime.h: Rename second parameter for utime to prevent warning for -Wshadow. * dirent/dirent.h: Same here for scandir prototype. * math/mathcalls.h: Likewise for frexp and ldexp. * sysdeps/unix/sysv/linux/netinet/in.h: Likewise for bindresvport. Sat Nov 16 03:49:27 1996 Ulrich Drepper <drepper@cygnus.com> * stdlib/tst-strtod.c: Add test for error case below. Sat Nov 16 03:48:39 1996 Wolfram Gloger <Wolfram.Gloger@dent.med.uni-muenchen.de> * stdlib/strtod.c: Recognize numbers like 0e-19. Fri Nov 15 08:38:43 1996 Andreas Jaeger <aj@arthur.pfalz.de> * time/Makefile ($(installed-localtime-file)): Fix path to rellns-sh. * Makefile: Don't generate and install gnu/lib-names.h if $(build-shared) is not `yes'. Thu Nov 14 09:23:58 1996 H.J. Lu (hjl@gnu.ai.mit.edu) * sysdeps/posix/Makefile ($(common-objpfx)mk-stdiolim): Depend on $(..)posix/posix1_lim.h, not ../posix/posix1_lim.h. * Makerules (REAL_MAKE_VERSION): New, use it instead of MAKE_VERSION. Thu Nov 14 22:10:43 1996 Ulrich Drepper <drepper@cygnus.com> * nss/nss_files/files-XXX.x (_nss_files_get,ENTNAME_r): Fix typo. * nss/getXXent_r.c: Fix typo. Set correct return value when no further service is available. Thu Nov 14 17:48:13 1996 Ulrich Drepper <drepper@cygnus.com> * db/recno/rec_put.c: Add cast to avoid warning. * db/recno/rec_close.c: Likewise. * db/mpool/mpool.c: Likewise. * db/hash/hash_bigkey.h: Likewise. * db/hash/hash.c: Likewise. * db/btree/bt_split.c: Likewise. * db/btree/bt_put.c: Likewise. Thu Nov 14 14:11:44 1996 Ulrich Drepper <drepper@cygnus.com> * dirent/dirent.h: Update copyright. * elf/elf.h: Likewise. * elf/link.h: Likewise. * gmon/sys/gmon_out.h: Likewise. * gnu-versions.h: Likewise. * intl/libintl.h: Likewise. * io/fcntl.h: Likewise. * io/ftw.h: Likewise. * io/sys/statfs.h: Likewise. * io/utime.h: Likewise. * locale/langinfo.h: Likewise. * malloc/malloc.h: Likewise. * malloc/obstack.h: Likewise. * misc/ar.h: Likewise. * misc/error.h: Likewise. * misc/mntent.h: Likewise. * misc/sgtty.h: Likewise. * misc/sys/cdefs.h: Likewise. * misc/sys/dir.h: Likewise. * misc/sys/file.h: Likewise. * misc/sys/ioctl.h: Likewise. * misc/sys/ustat.h: Likewise. * posix/fnmatch.h: Likewise. * posix/getopt.h: Likewise. * posix/glob.h: Likewise. * posix/posix2_lim.h: Likewise. * posix/regex.h: Likewise. * posix/sys/times.h: Likewise. * posix/sys/types.h: Likewise. * posix/sys/utsname.h: Likewise. * posix/tar.h: Likewise. * posix/wordexp.h: Likewise. * resource/sys/resource.h: Likewise. * resource/sys/vlimit.h: Likewise. * resource/sys/vtimes.h: Likewise. * socket/sys/socket.h: Likewise. * socket/sys/un.h: Likewise. * stdio-common/printf.h: Likewise. * stdlib/alloca.h: Likewise. * string/argz.h: Likewise. * string/endian.h: Likewise. * string/envz.h: Likewise. * string/memory.h: Likewise. * string/strings.h: Likewise. * sysdeps/generic/crypt.h: Likewise. * sysdeps/generic/direntry.h: Likewise. * sysdeps/generic/gnu/types.h: Likewise. * sysdeps/generic/ioctl-types.h: Likewise. * sysdeps/generic/netinet/in.h: Likewise. * sysdeps/generic/resourcebits.h: Likewise. * sysdeps/generic/sigset.h: Likewise. * sysdeps/generic/sockaddrcom.h: Likewise. * sysdeps/generic/sys/mman.h: Likewise. * sysdeps/generic/sys/ptrace.h: Likewise. * sysdeps/generic/termbits.h: Likewise. * sysdeps/generic/waitstatus.h: Likewise. * sysdeps/ieee754/huge_val.h: Likewise. * sysdeps/ieee754/nan.h: Likewise. * sysdeps/mach/hurd/local_lim.h: Likewise. * sysdeps/mach/hurd/statbuf.h: Likewise. * sysdeps/stub/huge_val.h: Likewise. * sysdeps/stub/libc-lock.h: Likewise. * sysdeps/stub/signum.h: Likewise. * sysdeps/stub/statbuf.h: Likewise. * sysdeps/stub/waitflags.h: Likewise. * sysdeps/unix/bsd/bsd4.4/sockaddrcom.h: Likewise. * sysdeps/unix/bsd/osf/alpha/statbuf.h: Likewise. * sysdeps/unix/bsd/osf/sys/mman.h: Likewise. * sysdeps/unix/bsd/signum.h: Likewise. * sysdeps/unix/bsd/statbuf.h: Likewise. * sysdeps/unix/bsd/sun/signum.h: Likewise. * sysdeps/unix/bsd/sun/sunos4/resourcebits.h: Likewise. * sysdeps/unix/bsd/sun/sunos4/sys/mman.h: Likewise. * sysdeps/unix/bsd/sun/sunos4/termbits.h: Likewise. * sysdeps/unix/bsd/ultrix4/sys/mman.h: Likewise. * sysdeps/unix/bsd/waitflags.h: Likewise. * sysdeps/unix/sysv/irix4/signum.h: Likewise. * sysdeps/unix/sysv/irix4/statbuf.h: Likewise. * sysdeps/unix/sysv/irix4/sys/mman.h: Likewise. * sysdeps/unix/sysv/linux/alpha/statbuf.h: Likewise. * sysdeps/unix/sysv/linux/alpha/sys/io.h: Likewise. * sysdeps/unix/sysv/linux/direntry.h: Likewise. * sysdeps/unix/sysv/linux/gnu/types.h: Likewise. * sysdeps/unix/sysv/linux/ioctl-types.h: Likewise. * sysdeps/unix/sysv/linux/local_lim.h: Likewise. * sysdeps/unix/sysv/linux/netinet/in.h: Likewise. * sysdeps/unix/sysv/linux/resourcebits.h: Likewise. * sysdeps/unix/sysv/linux/signum.h: Likewise. * sysdeps/unix/sysv/linux/statbuf.h: Likewise. * sysdeps/unix/sysv/linux/sys/io.h: Likewise. * sysdeps/unix/sysv/linux/sys/klog.h: Likewise. * sysdeps/unix/sysv/linux/sys/mman.h: Likewise. * sysdeps/unix/sysv/linux/sys/ptrace.h: Likewise. * sysdeps/unix/sysv/linux/syscall.h: Likewise. * sysdeps/unix/sysv/linux/termbits.h: Likewise. * sysdeps/unix/sysv/local_lim.h: Likewise. * sysdeps/unix/sysv/sco3.2.4/syscall.h: Likewise. * sysdeps/unix/sysv/sco3.2/local_lim.h: Likewise. * sysdeps/unix/sysv/signum.h: Likewise. * sysdeps/unix/sysv/sysv4/i386/statbuf.h: Likewise. * sysdeps/unix/sysv/sysv4/signum.h: Likewise. * sysdeps/unix/sysv/sysv4/sigset.h: Likewise. * sysdeps/unix/sysv/sysv4/solaris2/signum.h: Likewise. * sysdeps/unix/sysv/sysv4/solaris2/statbuf.h: Likewise. * sysdeps/unix/sysv/sysv4/waitflags.h: Likewise. * sysdeps/vax/huge_val.h: Likewise. * values.h: Likewise. Thu Nov 14 04:22:41 1996 Ulrich Drepper <drepper@cygnus.com> * malloc/obstack.h: Use memcpy instead of bcopy and define a macro `memcpy' using bcopy if memcpy is not available. * manual/stdio.texi: Correct description of printf customization. The argument info function is not optional anymore and the interface for `printf_function' also changed. * manual/examples/rprintf.c: Define and use argument info function. * stdio-common/printf.h (struct printf_info): Change type for field `pad' to wchar_t. Correct comment for `register_printf_function'. * nss/getXXbyYY.c [NEED_H_ERRNO]: Don't pass pointer to h_errno to reentrant function. Instead use temporary variable and set h_errno if an error occured. Reported by NIIBE Yutaka. are no bits set in the masks. Reported by baldazzi@csr.unibo.it.
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register u_int32_t val, base, n, i;
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register char c;
u_int32_t parts[4], *pp = parts;
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int digit;
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again:
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val = 0; base = 10; digit = 0;
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if (*cp == '0')
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digit = 1, base = 8, cp++;
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if (*cp == 'x' || *cp == 'X')
base = 16, cp++;
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while ((c = *cp) != 0) {
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if (isdigit(c)) {
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if (base == 8 && (c == '8' || c == '9'))
return (INADDR_NONE);
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val = (val * base) + (c - '0');
cp++;
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digit = 1;
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continue;
}
if (base == 16 && isxdigit(c)) {
Update. 2000-02-11 Ulrich Drepper <drepper@redhat.com> * stdio-common/printf-parse.h (parse_one_spec): Set wide elements. * stdio-common/printf_fp.c: Truely support wide characater output. Finally handle decimal points and thousands separator characters correctly for multibyte output. * stdio-common/printf_size.c: Likewise. * sysdeps/generic/printf_fphex.c: Likewise. * sysdeps/ieee754/ldbl-96/printf_fphex.c: Likewise. * stdio-common/vfscanf.c: Implement I modifier for numbers to read locale dependent digits. * locale/C-monetary.c (_nl_C_LC_MONETARY): Change wide character decimal point and thousands separator values to wide characters from wide character strings. * locale/C-numeric.c (_nl_C_LC_NUMERIC): Likewise. * locale/indigitswc.h: Dereference wcdigits array elements. 2000-02-03 Jakub Jelinek <jakub@redhat.com> * stdlib/canonicalize.c (canonicalize): Zero terminate path to copy on error. 2000-02-01 Cristian Gafton <gafton@redhat.com> * misc/syslog.c (closelog): Reset LogType to SOCK_DGRAM. 2000-01-31 Philip Blundell <philb@gnu.org> * sysdeps/arm/fpu/fpu_control.h (_FPU_DEFAULT): Set the AC bit. 2000-01-31 Andreas Jaeger <aj@suse.de> * intl/Makefile (generated): msgs.h is generated. * localedata/Makefile (generated-dirs): Add de_DE.437. 2000-01-31 Jakub Jelinek <jakub@redhat.com> * config.make.in: Allow default localedir to come from configure. * configure.in: Export libc_cv_localedir. * sysdeps/unix/sysv/linux/configure.in: For sparc64, put locale stuff into $exec_prefix/lib/locale because it can be shared between 32bit and 64bit libraries. * configure: Rebuilt. * sysdeps/unix/sysv/linux/configure: Rebuilt. 2000-01-31 Andreas Jaeger <aj@suse.de> * inet/tst-network.c: New file. * inet/Makefile (tests): Add tst-network. * inet/inet_net.c (inet_network): Don't overwrite memory or allow to great last digits.
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val = (val << 4) + (tolower (c) + 10 - 'a');
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cp++;
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digit = 1;
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continue;
}
break;
}
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if (!digit)
return (INADDR_NONE);
Update. 2000-02-11 Ulrich Drepper <drepper@redhat.com> * stdio-common/printf-parse.h (parse_one_spec): Set wide elements. * stdio-common/printf_fp.c: Truely support wide characater output. Finally handle decimal points and thousands separator characters correctly for multibyte output. * stdio-common/printf_size.c: Likewise. * sysdeps/generic/printf_fphex.c: Likewise. * sysdeps/ieee754/ldbl-96/printf_fphex.c: Likewise. * stdio-common/vfscanf.c: Implement I modifier for numbers to read locale dependent digits. * locale/C-monetary.c (_nl_C_LC_MONETARY): Change wide character decimal point and thousands separator values to wide characters from wide character strings. * locale/C-numeric.c (_nl_C_LC_NUMERIC): Likewise. * locale/indigitswc.h: Dereference wcdigits array elements. 2000-02-03 Jakub Jelinek <jakub@redhat.com> * stdlib/canonicalize.c (canonicalize): Zero terminate path to copy on error. 2000-02-01 Cristian Gafton <gafton@redhat.com> * misc/syslog.c (closelog): Reset LogType to SOCK_DGRAM. 2000-01-31 Philip Blundell <philb@gnu.org> * sysdeps/arm/fpu/fpu_control.h (_FPU_DEFAULT): Set the AC bit. 2000-01-31 Andreas Jaeger <aj@suse.de> * intl/Makefile (generated): msgs.h is generated. * localedata/Makefile (generated-dirs): Add de_DE.437. 2000-01-31 Jakub Jelinek <jakub@redhat.com> * config.make.in: Allow default localedir to come from configure. * configure.in: Export libc_cv_localedir. * sysdeps/unix/sysv/linux/configure.in: For sparc64, put locale stuff into $exec_prefix/lib/locale because it can be shared between 32bit and 64bit libraries. * configure: Rebuilt. * sysdeps/unix/sysv/linux/configure: Rebuilt. 2000-01-31 Andreas Jaeger <aj@suse.de> * inet/tst-network.c: New file. * inet/Makefile (tests): Add tst-network. * inet/inet_net.c (inet_network): Don't overwrite memory or allow to great last digits.
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if (pp >= parts + 4 || val > 0xff)
return (INADDR_NONE);
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if (*cp == '.') {
*pp++ = val, cp++;
goto again;
}
if (*cp && !isspace(*cp))
return (INADDR_NONE);
*pp++ = val;
n = pp - parts;
for (val = 0, i = 0; i < n; i++) {
val <<= 8;
val |= parts[i] & 0xff;
}
return (val);
}