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1997-09-11 04:36 Ulrich Drepper <drepper@cygnus.com> * db2/db_int.h: Define __set_errno if not yet available. * db2/btree/bt_rec.c: Use __set_errno to set errno value. * db2/clib/getlong.c: Likewise. * db2/db185/db185.c: Likewise. * db2/db185/db185_int.h: Likewise. * db2/dbm/dbm.c: Likewise. * db2/lock/lock_deadlock.c: Likewise. * db2/log/log_archive.c: Likewise. * elf/dl-profile.c: Implement mcount function. * gmon/gmon.c: Use __profil not profil because of namespace pollution. * gmon/mcount.c: Remove BSD kernel code. Use compare&swap instruction if possible to change state variable. Optimize frompc folding. * gmon/sys/gmon.h (struct gmonparam): Change state field to long int. * sysdeps/i386/i486/atomicity.h: New file. * sysdeps/stub/atomicity.h: New file. * sysdeps/mach/hurd/profil.c: Define function as __profil and make profil weak alias. * sysdeps/posix/profil.c: Likewise. * string/bits/string2.h: New file. * include/bits/string2.h: New file. * string/Makefile (routines): Add mempcpy. (tests): Add inl-tester. Remove _D__NO_STRING_INLINES from CFLAGS-* variables. * sysdeps/generic/mempcpy.c: New file. * sysdeps/generic/memccpy.c: Undef function name to enable definition as macro. * sysdeps/generic/memchr.c: Likewise. * sysdeps/generic/memcmp.c: Likewise. * sysdeps/generic/memmem.c: Likewise. * sysdeps/generic/memmove.c: Likewise. * sysdeps/generic/strcat.c: Likewise. * sysdeps/generic/strchr.c: Likewise. * sysdeps/generic/strcmp.c: Likewise. * sysdeps/generic/strcpy.c: Likewise. * sysdeps/generic/strcspn.c: Likewise. * sysdeps/generic/strlen.c: Likewise. * sysdeps/generic/strncat.c: Likewise. * sysdeps/generic/strncmp.c: Likewise. * sysdeps/generic/strncpy.c: Likewise. * sysdeps/generic/strpbrk.c: Likewise. * sysdeps/generic/strrchr.c: Likewise. * sysdeps/generic/strsep.c: Likewise. * sysdeps/generic/strspn.c: Likewise. * sysdeps/generic/strstr.c: Likewise. * sysdeps/generic/strtok.c: Likewise. * sysdeps/generic/strtok_r.c: Likewise. * sysdeps/i386/memset.c: Likewise. * sysdeps/i386/bits/string.h: Correct a few types and constraints. * sysdeps/i386/i486/bits/string.h: Heavy rewrites and optimizations. * string/stratcliff.c: Undefine __USE_STRING_INLINES. * string/tst-strlen.c: Likewise. * string/string.h: Add prototype for mempcpy. Include bits/string2.h header always if optimizing. * intl/dcgettext.c: Don't unconditionally define stpcpy, only if not yet defined. * intl/l10nflist.c: Likewise. * string/tester.c: Add copyright and make little cleanups. * inet/test_ifindex.c: Change type of ni variable to unsigned int. * locale/programs/ld-ctype.c (struct locale_ctype_t): Change type of fields map_collection_max and map_collection_act to size_t. * nss/libnss_files.map: Group entries. * posix/unistd.h: Add prototype for __setpgid and __profil. * sysdeps/generic/crypt.h: Declare __crypt_r. * sysdeps/i386/bits/select.h: Fix fatal bugs, use correct casts now. * sysdeps/i386/fpu/bits/mathinline.h (isgreater, isgreaterequal, isless, islessequal, islessgreater, isunordered): Optimize a bit. * sysdeps/stub/ftruncate.c: Include missing header for prototype. * sysdeps/stub/getdents.c: Likewise. * sysdeps/stub/reboot.c: Likewise. * sysdeps/stub/swapon.c: Likewise. * sysdeps/stub/syscall.c: Likewise. * sysdeps/stub/ualarm.c: Likewise. * sysdeps/stub/usleep.c: Likewise. * sysdeps/unix/sysv/linux/if_index.c: Don't compile or use opensock if SIOGIFINDEX and SIOGIFNAME are not defined. * sysdeps/unix/sysv/linux/net/if.h: Add IFF_PORTSEL and IFF_AUTOMEDIA according to recent kernel changes. 1997-09-10 21:32 Klaus Espenlaub <kespenla@student.informatik.uni-ulm.de> * Makeconfig: Use $(have-initfini) instead of $(elf) to figure out the installed name of the startup code. (common-generated): Add version.mk. * Makefile (distclean-1): Add glibcbug. * Makerules: Replace -lgcc by $(gnulib). * catgets/Makefile (generated): Add xmalloc.o. * csu/Makefile (generated): Replace align.h and end.h by defs.h to match the generated file. * manual/Makefile (mostlyclean): Add stub-manual and stamp.o. (realclean): Changed to remove chapters-incl[12]. * po/Makefile (realclean): New rule to remove the generated .mo files. * time/Makefile: Only include zonefile dependencies if $(no_deps) is not true to avoid make clean failure when directory time doesn't exist yet. (generated): Add tzselect. * stdio/fgets.c (fgets): Add casts to reduce gcc warning noise. * stdio/internals.c (flushbuf): Likewise. * stdio/linewrap.c (lwupdate): Likewise. * stdio/memstream.c (enlarge_buffer): Likewise. * stdio-common/vfscanf.c (_IO_vfscanf): Likewise. * time/tzset.c (compute_change): Likewise. * misc/init-misc.c (__init_misc): Only declare static if HAVE_GNU_LD is defined. * sysdeps/posix/pipestream.c (FUNC): Change to generate ANSI C style functions. * sysdeps/stub/init-posix.c: Likewise. * sysdeps/stub/profil.c: Likewise. * munch-tmpl.c (__libc_init): Convert to ANSI C style declaration to reduce gcc warning noise. * stdio/glue.c (_filbuf, _flsbuf): Likewise. * stdio/obstream.c (grow, seek, input, init_obstream): Likewise. * stdio/vasprintf.c (enlarge_buffer): Likewise. * sysdeps/generic/sysd-stdio.c (__stdio_read, __stdio_write, __stdio_seek, __stdio_close, __stdio_fileno, __stdio_open, __stdio_reopen): Likewise. * sysdeps/posix/defs.c (_cleanup): Likewise. * time/offtime.c (__offtime): Add cast. * posix/getopt.c: Don't use text_set_element if not defined. * configure.in: Provide a check for underscores before user labels that works even when the compiler used for building doesn't work (like when there is no C library). Use the old way if the compiler works. 1997-09-10 05:08 David S. Miller <davem@caip.rutgers.edu> * sysdeps/unix/sysv/linux/sparc/bits/ioctls.h: The TC* ioctls use 'T' not 't' on SparcLinux. * sysdeps/unix/sysv/linux/sparc/bits/termios.h: tcflag_t is 32 bits. * sysdeps/unix/sysv/linux/sparc/sparc64/longjmp.S: Add aliases for _longjmp and siglongjmp. 1997-09-09 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * libio/stdio.h: Add format attributes to the extra printf and scanf like functions. * stdio/stdio.h: Likewise. 1997-09-09 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * nis/nss_nisplus/nisplus-network.c (_nss_nisplus_getnetbyaddr_r): Print tablename_val, not tablename_len. * nis/nss_nisplus/nisplus-ethers.c (_nss_nisplus_getntohost_r): Use sprintf instead of sprintf, the string always fits. * nis/nss_nisplus/nisplus-hosts.c (_nss_nisplus_gethostbyaddr_r): Likewise. * nis/nss_nisplus/nisplus-network.c (_nss_nisplus_getnetbyaddr_r): Likewise. * nis/nss_nisplus/nisplus-proto.c (_nss_nisplus_getprotobynumber_r): Likewise. * nis/nss_nisplus/nisplus-rpc.c (_nss_nisplus_getrpcbynumber_r): Likewise. * nis/nss_nisplus/nisplus-service.c (_nss_nisplus_getservbynumber_r): Likewise. * nis/nss_nisplus/nisplus-alias.c (_nss_create_tablename): Use __stpcpy, __stpncpy and __strdup instead of public names. * nis/nss_nisplus/nisplus-ethers.c (_nss_create_tablename): Likewise. * nis/nss_nisplus/nisplus-grp.c (_nss_create_tablename): Likewise. * nis/nss_nisplus/nisplus-hosts.c (_nss_create_tablename): Likewise. * nis/nss_nisplus/nisplus-netgrp.c (_nss_nisplus_parse_netgroup): Likewise. * nis/nss_nisplus/nisplus-network.c (_nss_nisplus_parse_netent): Likewise. (_nss_create_tablename): Likewise. * nis/nss_nisplus/nisplus-proto.c (_nss_nisplus_parse_protoent): Likewise. (_nss_create_tablename): Likewise. * nis/nss_nisplus/nisplus-pwd.c (_nss_create_tablename): Likewise. * nis/nss_nisplus/nisplus-rpc.c (_nss_nisplus_parse_rpcent): Likewise. (_nss_create_tablename): Likewise. * nis/nss_nisplus/nisplus-service.c (_nss_nisplus_parse_servent): Likewise. (_nss_create_tablename): Likewise. * nis/nss_nisplus/nisplus-spwd.c (_nss_create_tablename): Likewise. * libc.map: Export __stpcpy and __strdup. 1997-09-09 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * math/Makefile (CFLAGS-test-float.c, CFLAGS-test-double.c, CFLAGS-test-ldouble.c): Pass -ffloat-store to avoid excessive precision. 1997-09-09 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * include/rpc/auth_des.h: New file. 1997-09-09 Paul Eggert <eggert@twinsun.com> * time/mktime.c (__mktime_internal): Declare sec_requested even if !LEAP_SECONDS_POSSIBLE, since it's needed at the end when checking for time_t overflow. 1997-09-09 22:11 Ulrich Drepper <drepper@cygnus.com> * sysdeps/posix/getcwd.c: Correct test for too small buffer. Reported by Erik Troan <ewt@redhat.com>. * elf/dl-close.c: Include <bits/libc-lock.h>, not <libc-lock.h>. * elf/dl-open.c: Likewise. 1997-09-07 17:09 Richard Henderson <rth@cygnus.com> * sysdeps/alpha/Makefile: Kill setjmp_aux. * sysdeps/alpha/bits/setjmp.h: Rewrite in terms of an array. * sysdeps/alpha/__longjmp.c: Remove. * sysdeps/alpha/setjmp_aux.c: Remove. * sysdeps/alpha/__longjmp.S: New file. * sysdeps/alpha/bsd-_setjmp.S: Stub out. * sysdeps/alpha/bsd-setjmp.S: Likewise. * sysdeps/alpha/setjmp.S: Do the work; don't call __setjmp_aux. Move _setjmp and setjmp from bsd-*.S. 1997-09-06 20:20 Ulrich Drepper <drepper@cygnus.com> * include/rpc/auth.h: New file. * include/rpc/auth_unix.h: New file. 1997-09-06 Paul Eggert <eggert@twinsun.com> Fix gmtime so that it reports leap seconds when TZ indicates that leap seconds are desired. * time/gmtime.c (<stddef.h>): Remove unnecessary include. (gmtime): Put after gmtime_r, to help the compiler inline. (__tz_convert): New decl. (gmtime_r): Use __tz_convert instead of __offtime, so that leap seconds are handled correctly. * time/localtime.c (<errno.h>, <libc-lock.h>): Remove includes that are now unnecessary. (__tzset_internal, __tz_compute, __tzfile_compute, __use_tzfile, __tzset_lock): Remove extern decls that are now unnecessary. (localtime_internal): Moved to __tz_convert in tzset.c. so that localtime and gmtime can both use it easily. (localtime): Put after localtime_r, to help the compiler inline. (localtime_r): Use __tz_convert instead of localtime_internal. * time/strftime.c (__tz_compute): Remove unused (and now incorrect) decl. * time/tzfile.c (__tzfile_compute): New arg USE_LOCALTIME. * time/tzset.c (<errno.h>): Include. (_tmbuf): New decl. (__tzfile_compute): New function. (tz_compute): Renamed from __tz_compute. No longer extern. Remove redundant call to tzset_internal. (tzset_internal): Renamed from __tzset_internal. No longer extern. (tzset_lock): Renamed from __tzset_lock. No longer extern. (__tz_convert): New function, containing functionality of old localtime_internal function, plus locking and optional UTC. 1997-09-06 Paul Eggert <eggert@twinsun.com> * time/tzfile.c (__tzfile_read): Don't read a file if TZ is the empty string, just use UTC without leap seconds. This is for compatibility with the Olson code. 1997-09-06 Paul Eggert <eggert@twinsun.com> * time/tzset.c (__tzname_max): Lock tz data structures before invoking tzset_internal. * time/tzfile.c: Define compute_tzname_max statically. 1997-09-07 10:57 Thorsten Kukuk <kukuk@vt.uni-paderborn.de> * nis/nis_call.c: Remove not longer necessary HAVE_SECURE_RPC ifdefs. * nis/nis_intern.h: Likewise. * nis/nss_nis/nis-publickey.c: Likewise. * nis/nss_nisplus/nisplus-publickey.c: Likewise. * nis/ypclnt.c: Likewise. * sunrpc/auth_des.c: Don't dereference NULL pointer, initialize ad->ad_timediff. * sunrpc/auth_none.c: Don't define our own prototypes, use the one from the header files. * sunrpc/auth_unix.c: Likewise. * sunrpc/clnt_raw.c: Likewise. * sunrpc/clnt_tcp.c: Likewise. * sunrpc/rpc_cmsg.c: Likewise. * sunrpc/key_call.c: Fix signal handling. * sunrpc/openchild.c: Don't use /bin/sh to start /usr/etc/keyenvoy, or we will get a deadlock with NIS+. * sunrpc/rpc/auth.h: Add prototype for xdr_opaque_auth, don't define HAVE_SECURE_RPC. 1997-09-07 15:51 Ulrich Drepper <drepper@cygnus.com> * sysdeps/i386/bits/select.h [__GNUC__] (__FD_ZERO, __FD_SET, __FD_CLR, __FD_ISSET): Use correct casts to address array correctly. Reported by urbanw@cs.umu.se. 1997-09-07 05:07 Ulrich Drepper <drepper@cygnus.com> * elf/dl-close.c: Include <bits/libc-lock.h>, not <libc-lock.h>. * elf/dl-open.c: Likewise. * sysdeps/i386/memset.c: Undefine memset in case the header with the optimized functions is included. Patches by NIIBE Yutaka <gniibe@mri.co.jp>. * sysdeps/i386/bits/string.h [__PIC__] (strcspn, strspn, strpbrk, strsep): Use register for second parameter. * sysdeps/i386/i486/bits/string.h: Likewise. Reported by NIIBE Yutaka <gniibe@mri.co.jp>. 1997-09-03 09:48 Geoff Keating <geoffk@ozemail.com.au> * math/libm-test.c: Change various tolerances to match what the tested routines can actually provide. * math/Makefile: Add new tests. * math/atest-sincos.c: New file. * math/atest-exp.c: New file. * csu/Makefile: Give initfini.s and initfiniS.s their own CFLAGS-* macros so they can be overridden. * sysdeps/powerpc/Makefile [subdir=csu]: Override flags for initfiniS.s to use -fpic instead of -fPIC, because the sed script breaks otherwise. * sysdeps/powerpc/Makefile [build-shared]: Use -fpic not -fPIC for efficiency. * sysdeps/powerpc/dl-machine.h (ELF_MACHINE_RUNTIME_TRAMPOLINE): Don't use register 0, to let _mcount be in a shared object. * sysdeps/powerpc/dl-machine.h: Use full sentences in comments. Generally clean up. Suppress some code we don't need when relocating ld.so. * sysdeps/powerpc/test-arith.c: Change loop indices to size_t when appropriate to suppress gcc warning. * resolv/res_send.c: Suppress warning. * sunrpc/xdr_sizeof.c: Suppress warning. * FAQ: Add ppc-linux. * manual/maint.texi: Add ppc-linux. Explain that gcc can't build it yet. * sysdeps/unix/sysv/linux/powerpc/profil-counter.h: Correct for current kernels. 1997-08-15 07:45 Geoff Keating <geoffk@ozemail.com.au> * stdlib/fmtmsg.c: Use two parameters for __libc_once_define. * sysdeps/i386/machine-gmon.h: Correct typo. * sysdeps/unix/sysv/linux/powerpc/bits/mman.h: Change to match kernel. * sysdeps/generic/dl-sysdep.c: Add hook for bizzare PPC argument hack. * sysdeps/unix/sysv/linux/powerpc/dl-sysdep.c: Rewrite to use sysdeps/linux/dl-sysdep.c. * sysdeps/powerpc/Makefile [subdir=gmon]: Compile ppc-mcount. * sysdeps/powerpc/machine-gmon.h: Use ppc-mcount. * sysdeps/powerpc/ppc-mcount: New file. The following are mostly changes to allow profiling: * sysdeps/powerpc/add_n.S: Added. * sysdeps/powerpc/add_n.s: Removed. * sysdeps/powerpc/addmul_1.S: Added. * sysdeps/powerpc/addmul_1.s: Removed. * sysdeps/powerpc/bsd-_setjmp.S: Use JUMPTARGET macro. * sysdeps/powerpc/bsd-setjmp.S: Use JUMPTARGET macro. * sysdeps/powerpc/lshift.S: Added. * sysdeps/powerpc/lshift.s: Removed. * sysdeps/powerpc/memset.S: Added. * sysdeps/powerpc/memset.s: Removed. * sysdeps/powerpc/mul_1.S: Added. * sysdeps/powerpc/mul_1.s: Removed. * sysdeps/powerpc/rshift.S: Added. * sysdeps/powerpc/rshift.s: Removed. * sysdeps/powerpc/s_copysign.S: Use ENTRY, END, weak_alias macros. * sysdeps/powerpc/s_fabs.S: Use ENTRY, END, weak_alias macros. * sysdeps/powerpc/setjmp.S: Use JUMPTARGET macro. * sysdeps/powerpc/strchr.S: Added. * sysdeps/powerpc/strchr.s: Removed. * sysdeps/powerpc/strcmp.S: Added. * sysdeps/powerpc/strcmp.s: Removed. * sysdeps/powerpc/strlen.S: Added. * sysdeps/powerpc/strlen.s: Removed. * sysdeps/powerpc/sub_n.S: Added. * sysdeps/powerpc/sub_n.s: Removed. * sysdeps/powerpc/submul_1.S: Added. * sysdeps/powerpc/submul_1.s: Removed. * sysdeps/unix/sysv/linux/powerpc/_exit.S: Removed. * sysdeps/unix/sysv/linux/powerpc/brk.S: Added. * sysdeps/unix/sysv/linux/powerpc/brk.c: Removed. * sysdeps/unix/sysv/linux/powerpc/clone.S: Use new macros. Fix various bugs. Document that it isn't tested. * sysdeps/unix/sysv/linux/powerpc/sigreturn.S: Make look like sysdeps/unix/_exit.S. * sysdeps/unix/sysv/linux/powerpc/socket.S: Use new macros. * sysdeps/unix/sysv/linux/powerpc/syscall.S: Use new macros. * sysdeps/unix/sysv/linux/powerpc/sysdep.h: Define some new macros to make assembler (possibly) more portable, allow profiling, etc.
383 lines
8.2 KiB
C
383 lines
8.2 KiB
C
/* Copyright (C) 1991, 92, 93, 94, 95, 96, 97 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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/* Wants:
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AC_STDC_HEADERS
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AC_DIR_HEADER
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AC_UNISTD_H
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AC_MEMORY_H
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AC_CONST
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AC_ALLOCA
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*/
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/* AIX requires this to be the first thing in the file. */
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#if defined (_AIX) && !defined (__GNUC__)
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#pragma alloca
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#endif
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <errno.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#ifdef STDC_HEADERS
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#include <stddef.h>
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#endif
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#if !defined(__GNU_LIBRARY__) && !defined(STDC_HEADERS)
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extern int errno;
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#endif
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#ifndef __set_errno
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#define __set_errno(val) errno = (val)
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#endif
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#ifndef NULL
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#define NULL 0
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#endif
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#if defined (USGr3) && !defined (DIRENT)
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#define DIRENT
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#endif /* USGr3 */
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#if defined (Xenix) && !defined (SYSNDIR)
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#define SYSNDIR
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#endif /* Xenix */
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#if defined (POSIX) || defined (DIRENT) || defined (__GNU_LIBRARY__)
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#include <dirent.h>
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#ifndef __GNU_LIBRARY__
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#define D_NAMLEN(d) strlen((d)->d_name)
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#else
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#define HAVE_D_NAMLEN
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#define D_NAMLEN(d) ((d)->d_namlen)
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#endif
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#else /* not POSIX or DIRENT */
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#define dirent direct
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#define D_NAMLEN(d) ((d)->d_namlen)
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#define HAVE_D_NAMLEN
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#if defined (USG) && !defined (sgi)
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#if defined (SYSNDIR)
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#include <sys/ndir.h>
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#else /* Not SYSNDIR */
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#include "ndir.h"
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#endif /* SYSNDIR */
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#else /* not USG */
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#include <sys/dir.h>
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#endif /* USG */
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#endif /* POSIX or DIRENT or __GNU_LIBRARY__ */
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#if defined (HAVE_UNISTD_H) || defined (__GNU_LIBRARY__)
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#include <unistd.h>
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#endif
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#if (defined (STDC_HEADERS) || defined (__GNU_LIBRARY__) \
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|| defined (POSIX))
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#include <stdlib.h>
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#include <string.h>
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#define ANSI_STRING
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#else /* No standard headers. */
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#ifdef USG
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#include <string.h>
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#ifdef NEED_MEMORY_H
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#include <memory.h>
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#endif
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#define ANSI_STRING
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#else /* Not USG. */
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#ifdef NeXT
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#include <string.h>
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#else /* Not NeXT. */
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#include <strings.h>
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#ifndef bcmp
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extern int bcmp ();
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#endif
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#ifndef bzero
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extern void bzero ();
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#endif
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#ifndef bcopy
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extern void bcopy ();
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#endif
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#endif /* NeXT. */
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#endif /* USG. */
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extern char *malloc (), *realloc ();
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extern void free ();
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#endif /* Standard headers. */
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#ifndef ANSI_STRING
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#define memcpy(d, s, n) bcopy((s), (d), (n))
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#define memmove memcpy
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#endif /* Not ANSI_STRING. */
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#if !defined(__alloca) && !defined(__GNU_LIBRARY__)
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#ifdef __GNUC__
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#undef alloca
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#define alloca(n) __builtin_alloca (n)
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#else /* Not GCC. */
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#if defined (sparc) || defined (HAVE_ALLOCA_H)
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#include <alloca.h>
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#else /* Not sparc or HAVE_ALLOCA_H. */
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#ifndef _AIX
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extern char *alloca ();
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#endif /* Not _AIX. */
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#endif /* sparc or HAVE_ALLOCA_H. */
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#endif /* GCC. */
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#define __alloca alloca
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#endif
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#if (defined (HAVE_LIMITS_H) || defined (STDC_HEADERS) || \
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defined (__GNU_LIBRARY__))
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#include <limits.h>
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#else
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#include <sys/param.h>
|
||
#endif
|
||
|
||
#ifndef PATH_MAX
|
||
#ifdef MAXPATHLEN
|
||
#define PATH_MAX MAXPATHLEN
|
||
#else
|
||
#define PATH_MAX 1024
|
||
#endif
|
||
#endif
|
||
|
||
#if !defined (STDC_HEADERS) && !defined (__GNU_LIBRARY__)
|
||
#undef size_t
|
||
#define size_t unsigned int
|
||
#endif
|
||
|
||
#if !__STDC__ && !defined (const)
|
||
#define const
|
||
#endif
|
||
|
||
#ifndef __GNU_LIBRARY__
|
||
#define __lstat stat
|
||
#endif
|
||
|
||
#ifndef _LIBC
|
||
#define __getcwd getcwd
|
||
#endif
|
||
|
||
/* Get the pathname of the current working directory, and put it in SIZE
|
||
bytes of BUF. Returns NULL if the directory couldn't be determined or
|
||
SIZE was too small. If successful, returns BUF. In GNU, if BUF is
|
||
NULL, an array is allocated with `malloc'; the array is SIZE bytes long,
|
||
unless SIZE <= 0, in which case it is as big as necessary. */
|
||
|
||
char *
|
||
__getcwd (buf, size)
|
||
char *buf;
|
||
size_t size;
|
||
{
|
||
static const char dots[]
|
||
= "../../../../../../../../../../../../../../../../../../../../../../../\
|
||
../../../../../../../../../../../../../../../../../../../../../../../../../../\
|
||
../../../../../../../../../../../../../../../../../../../../../../../../../..";
|
||
const char *dotp, *dotlist;
|
||
size_t dotsize;
|
||
dev_t rootdev, thisdev;
|
||
ino_t rootino, thisino;
|
||
char *path;
|
||
register char *pathp;
|
||
struct stat st;
|
||
|
||
if (size == 0)
|
||
{
|
||
if (buf != NULL)
|
||
{
|
||
__set_errno (EINVAL);
|
||
return NULL;
|
||
}
|
||
|
||
size = PATH_MAX + 1;
|
||
}
|
||
|
||
if (buf != NULL)
|
||
path = buf;
|
||
else
|
||
{
|
||
path = malloc (size);
|
||
if (path == NULL)
|
||
return NULL;
|
||
}
|
||
|
||
pathp = path + size;
|
||
*--pathp = '\0';
|
||
|
||
if (__lstat (".", &st) < 0)
|
||
return NULL;
|
||
thisdev = st.st_dev;
|
||
thisino = st.st_ino;
|
||
|
||
if (__lstat ("/", &st) < 0)
|
||
return NULL;
|
||
rootdev = st.st_dev;
|
||
rootino = st.st_ino;
|
||
|
||
dotsize = sizeof (dots) - 1;
|
||
dotp = &dots[sizeof (dots)];
|
||
dotlist = dots;
|
||
while (!(thisdev == rootdev && thisino == rootino))
|
||
{
|
||
register DIR *dirstream;
|
||
struct dirent *d;
|
||
dev_t dotdev;
|
||
ino_t dotino;
|
||
char mount_point;
|
||
|
||
/* Look at the parent directory. */
|
||
if (dotp == dotlist)
|
||
{
|
||
/* My, what a deep directory tree you have, Grandma. */
|
||
char *new;
|
||
if (dotlist == dots)
|
||
{
|
||
new = malloc (dotsize * 2 + 1);
|
||
if (new == NULL)
|
||
return NULL;
|
||
memcpy (new, dots, dotsize);
|
||
}
|
||
else
|
||
{
|
||
new = realloc ((__ptr_t) dotlist, dotsize * 2 + 1);
|
||
if (new == NULL)
|
||
goto lose;
|
||
}
|
||
memcpy (&new[dotsize], new, dotsize);
|
||
dotp = &new[dotsize];
|
||
dotsize *= 2;
|
||
new[dotsize] = '\0';
|
||
dotlist = new;
|
||
}
|
||
|
||
dotp -= 3;
|
||
|
||
/* Figure out if this directory is a mount point. */
|
||
if (__lstat (dotp, &st) < 0)
|
||
goto lose;
|
||
dotdev = st.st_dev;
|
||
dotino = st.st_ino;
|
||
mount_point = dotdev != thisdev;
|
||
|
||
/* Search for the last directory. */
|
||
dirstream = __opendir (dotp);
|
||
if (dirstream == NULL)
|
||
goto lose;
|
||
while ((d = __readdir (dirstream)) != NULL)
|
||
{
|
||
if (d->d_name[0] == '.' &&
|
||
(d->d_name[1] == '\0' ||
|
||
(d->d_name[1] == '.' && d->d_name[2] == '\0')))
|
||
continue;
|
||
if (mount_point || (ino_t) d->d_ino == thisino)
|
||
{
|
||
char name[dotlist + dotsize - dotp + 1 + _D_ALLOC_NAMLEN (d)];
|
||
memcpy (name, dotp, dotlist + dotsize - dotp);
|
||
name[dotlist + dotsize - dotp] = '/';
|
||
strcpy (&name[dotlist + dotsize - dotp + 1], d->d_name);
|
||
if (__lstat (name, &st) < 0)
|
||
{
|
||
int save = errno;
|
||
(void) __closedir (dirstream);
|
||
__set_errno (save);
|
||
goto lose;
|
||
}
|
||
if (st.st_dev == thisdev && st.st_ino == thisino)
|
||
break;
|
||
}
|
||
}
|
||
if (d == NULL)
|
||
{
|
||
int save = errno;
|
||
(void) __closedir (dirstream);
|
||
__set_errno (save);
|
||
goto lose;
|
||
}
|
||
else
|
||
{
|
||
size_t namlen = _D_EXACT_NAMLEN (d);
|
||
|
||
if ((size_t) (pathp - path) <= namlen)
|
||
{
|
||
if (buf != NULL)
|
||
{
|
||
(void) __closedir (dirstream);
|
||
__set_errno (ERANGE);
|
||
goto lose;
|
||
}
|
||
else
|
||
{
|
||
size *= 2;
|
||
buf = realloc (path, size);
|
||
if (buf == NULL)
|
||
{
|
||
(void) __closedir (dirstream);
|
||
free (path);
|
||
__set_errno (ENOMEM);/* closedir might have changed it.*/
|
||
goto lose;
|
||
}
|
||
pathp = &buf[pathp - path + size / 2];
|
||
path = buf;
|
||
/* Move current contents up to the end of the buffer.
|
||
This is guaranteed to be non-overlapping. */
|
||
memcpy (pathp, pathp - size / 2, path + size - pathp);
|
||
}
|
||
}
|
||
pathp -= namlen;
|
||
(void) memcpy (pathp, d->d_name, namlen);
|
||
*--pathp = '/';
|
||
(void) __closedir (dirstream);
|
||
}
|
||
|
||
thisdev = dotdev;
|
||
thisino = dotino;
|
||
}
|
||
|
||
if (pathp == &path[size - 1])
|
||
*--pathp = '/';
|
||
|
||
if (dotlist != dots)
|
||
free ((__ptr_t) dotlist);
|
||
|
||
memmove (path, pathp, path + size - pathp);
|
||
return path;
|
||
|
||
lose:
|
||
if (dotlist != dots)
|
||
free ((__ptr_t) dotlist);
|
||
return NULL;
|
||
}
|
||
|
||
#ifdef _LIBC
|
||
weak_alias (__getcwd, getcwd)
|
||
#endif
|