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Update.
1997-10-29 21:20 Ulrich Drepper <drepper@cygnus.com> * libio/strops.c (_IO_str_seekoff): If mode is zero and the read/write pointers are tied set mode according to current stream mode. * include/features.h [_GNU_SOURCE] (_POSIX_C_SOURCE): Define to 199506L. Define _XOPEN_SOURCE to 500 if _POSIX_C_SOURCE is defined. * manual/creature.texi: Describe this. * manual/socket.texi: Describe connect, accept, send, sendmsg, sendto, recv, recvfrom, and recvmsg as cancelation points. * sysdeps/unix/inet/syscalls.list: Add __libc_* names for these functions. 1997-10-17 Andreas Jaeger <aj@arthur.rhein-neckar.de> * Make-dist (try-sysdeps): Don't look for stub files anymore. * manual/maint.texi (Porting): Remove another reference to stub directory. * sysdeps/unix/bsd/sun/sethostid.c: Include stub version from generic subdir. * sysdeps/unix/sysv/irix4/reboot.c: Likewise. * sysdeps/unix/sysv/irix4/swapon.c: Likewise 1997-10-29 03:54 Ulrich Drepper <drepper@cygnus.com> * resolv/nss_dns/dns-host.c: Change variable pointed to by h_errnop in all error cases (PR 244). 1997-10-29 00:56 Ulrich Drepper <drepper@cygnus.com> * posix/glob.c: Fix handling of expressions like "*/" (PR 325). Optimize by using mempcpy. 1997-10-17 Andreas Jaeger <aj@arthur.rhein-neckar.de> * po/Makefile ($(mo-installed)): Don't fail during installation if files don't exist (might happen if msgfmt doesn't exist) (PR 328). Suggested by Wolfram Gloger <wmglo@dent.med.uni-muenchen.de>. 1997-10-24 Andreas Jaeger <aj@arthur.rhein-neckar.de> * sysdeps/generic/bits/errno.h (ENOMSG): Define it. Pointed out by Klaus Espenlaub <kespenla@hydra.informatik.uni-ulm.de> (PR libc/259). 1997-10-28 17:40 Ulrich Drepper <drepper@cygnus.com> * sysdeps/libm-ieee754/s_cbrt.c: Testing the returned exponent for zero isn't enough to determine illegal arguments. * sysdeps/libm-ieee754/s_cbrtf.c: Likewise. * sysdeps/libm-ieee754/s_cbrtl.c: Likewise. 1997-10-28 17:14 Ulrich Drepper <drepper@cygnus.com> * manual/filesys.texi (S_ISVTX): Describe that it is available with _BSD_SOURCE only. Reported by Jochen Hein <jochen.hein@delphi.central.de>. 1997-10-28 04:26 Ulrich Drepper <drepper@cygnus.com> * time/tzfile.c (__tzfile_compute): Use negated value of offset for timezone variable. * time/tzset.c (tz_compute): Likewise. Reported by Erik Troan <ewt@redhat.com>. 1997-10-28 02:51 Ulrich Drepper <drepper@cygnus.com> * manual/filesys.texi: Correct prototype in readdir_r description. Reported by Jim Meyering <meyering@eng.ascend.com>. 1997-10-27 Andreas Jaeger <aj@arthur.rhein-neckar.de> * math/libm-test.c (cbrt_test): Add test for cbrt(0.970299). 1997-10-26 19:39 Zack Weinberg <zack@rabi.phys.columbia.edu> * stdlib/l64a.c: Produce a useful result for n < 0. * stdlib/a64l.c: Use unsigned type for working variable. * manual/string.texi (general): Grammar, typo, overfull fixes. (strlen): Insert warning about sizeof(char *). (a64l, l64a): Make documentation agree with implementation. * libio/iofdopen.c: Use _IO_FILE_complete, not _IO_FILE_plus. * posix/unistd.h: Add prototypes for __pread, __pread64, __pwrite
This commit is contained in:
Ulrich Drepper
parent
af6f39063b
commit
dd7d45e838
90
ChangeLog
90
ChangeLog
@ -1,8 +1,94 @@
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1997-10-29 21:20 Ulrich Drepper <drepper@cygnus.com>
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* libio/strops.c (_IO_str_seekoff): If mode is zero and the read/write
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pointers are tied set mode according to current stream mode.
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* include/features.h [_GNU_SOURCE] (_POSIX_C_SOURCE): Define to
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199506L.
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Define _XOPEN_SOURCE to 500 if _POSIX_C_SOURCE is defined.
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* manual/creature.texi: Describe this.
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* manual/socket.texi: Describe connect, accept, send, sendmsg, sendto,
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recv, recvfrom, and recvmsg as cancelation points.
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* sysdeps/unix/inet/syscalls.list: Add __libc_* names for these
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functions.
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1997-10-17 Andreas Jaeger <aj@arthur.rhein-neckar.de>
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* Make-dist (try-sysdeps): Don't look for stub files anymore.
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* manual/maint.texi (Porting): Remove another reference to stub
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directory.
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* sysdeps/unix/bsd/sun/sethostid.c: Include stub version from
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generic subdir.
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* sysdeps/unix/sysv/irix4/reboot.c: Likewise.
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* sysdeps/unix/sysv/irix4/swapon.c: Likewise
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1997-10-29 03:54 Ulrich Drepper <drepper@cygnus.com>
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* resolv/nss_dns/dns-host.c: Change variable pointed to by h_errnop
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in all error cases (PR 244).
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1997-10-29 00:56 Ulrich Drepper <drepper@cygnus.com>
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* posix/glob.c: Fix handling of expressions like "*/" (PR 325).
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Optimize by using mempcpy.
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1997-10-17 Andreas Jaeger <aj@arthur.rhein-neckar.de>
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* po/Makefile ($(mo-installed)): Don't fail during installation if
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files don't exist (might happen if msgfmt doesn't exist) (PR 328).
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Suggested by Wolfram Gloger <wmglo@dent.med.uni-muenchen.de>.
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1997-10-24 Andreas Jaeger <aj@arthur.rhein-neckar.de>
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* sysdeps/generic/bits/errno.h (ENOMSG): Define it.
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Pointed out by Klaus Espenlaub
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<kespenla@hydra.informatik.uni-ulm.de> (PR libc/259).
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1997-10-28 17:40 Ulrich Drepper <drepper@cygnus.com>
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* sysdeps/libm-ieee754/s_cbrt.c: Testing the returned exponent for
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zero isn't enough to determine illegal arguments.
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* sysdeps/libm-ieee754/s_cbrtf.c: Likewise.
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* sysdeps/libm-ieee754/s_cbrtl.c: Likewise.
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1997-10-28 17:14 Ulrich Drepper <drepper@cygnus.com>
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* manual/filesys.texi (S_ISVTX): Describe that it is available with
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_BSD_SOURCE only.
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Reported by Jochen Hein <jochen.hein@delphi.central.de>.
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1997-10-28 04:26 Ulrich Drepper <drepper@cygnus.com>
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* time/tzfile.c (__tzfile_compute): Use negated value of offset for
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timezone variable.
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* time/tzset.c (tz_compute): Likewise.
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Reported by Erik Troan <ewt@redhat.com>.
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1997-10-28 02:51 Ulrich Drepper <drepper@cygnus.com>
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* manual/filesys.texi: Correct prototype in readdir_r description.
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Reported by Jim Meyering <meyering@eng.ascend.com>.
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1997-10-27 Andreas Jaeger <aj@arthur.rhein-neckar.de>
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* math/libm-test.c (cbrt_test): Add test for cbrt(0.970299).
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1997-10-26 19:39 Zack Weinberg <zack@rabi.phys.columbia.edu>
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* stdlib/l64a.c: Produce a useful result for n < 0.
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* stdlib/a64l.c: Use unsigned type for working variable.
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* manual/string.texi (general): Grammar, typo, overfull fixes.
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(strlen): Insert warning about sizeof(char *).
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(a64l, l64a): Make documentation agree with implementation.
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1997-10-26 18:12 Ulrich Drepper <drepper@cygnus.com>
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* libio/genops.c: Partial undo of last patch.
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* libio/stdfiles.c: Likewise.
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* libio/iofdopen.c: Use _IO_FILE_complete, not _IO_file_plus.
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* libio/iofdopen.c: Use _IO_FILE_complete, not _IO_FILE_plus.
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* libio/iopopen.c: Likewise.
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* libio/iovdprintf.c: Likewise.
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* libio/libio.h: Remove duplicated `;'.
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@ -21,7 +107,7 @@
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* posix/unistd.h: Add explanation of _POSIX_* constants.
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* posix/unists.h: Add prototypes for __pread, __pread64, __pwrite
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* posix/unistd.h: Add prototypes for __pread, __pread64, __pwrite
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and __pwrite64.
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* sysdeps/generic/pread.c: Define as __pread and make pread weak alias.
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* sysdeps/generic/pread64.c: Likewise.
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26
FAQ
26
FAQ
@ -97,6 +97,9 @@ please let me know.
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[Q27] ``Programs like `logname', `top', `uptime' `users', `w' and
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`who', show incorrect information about the (number of)
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users on my system. Why?''
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[Q28] ``After upgrading to a glibc 2.1 with symbol versioning I get
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errors about undefined symbols. What went wrong?''
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~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
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[Q1] ``What systems does the GNU C Library run on?''
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@ -733,13 +736,32 @@ symlink that you have in place before you install glibc. However,
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[A27] {MK} See Q10.
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~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
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[Q28] ``After upgrading to a glibc 2.1 with symbol versioning I get
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errors about undefined symbols. What went wrong?''
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[A28] {AJ} In a versioned libc a lot of symbols are now local that
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have been global symbols in previous versions. When defining a extern
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variable both in a user program and extern in the libc the links
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resolves this to only one reference - the one in the library. The
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problem is caused by either wrong program code or tools. In no case
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the global variables from libc should be used by any program. Since
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these reference are now local, you might see a message like:
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"msgfmt: error in loading shared libraries: : undefined symbol: _nl_domain_bindings"
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The only way to fix this is to recompile your program. Sorry, that's
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the price you might have to pay once for quite a number of advantages
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with symbol versioning.
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~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
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Answers were given by:
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{UD} Ulrich Drepper, <drepper@cygnus.com>
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{DMT} David Mosberger-Tang, <davidm@AZStarNet.com>
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{RM} Roland McGrath, <roland@gnu.ai.mit.edu>
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{HJL} H.J. Lu, <hjl@gnu.ai.mit.edu>
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{RM} Roland McGrath, <roland@gnu.org>
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{HJL} H.J. Lu, <hjl@gnu.org>
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{AJ} Andreas Jaeger, <aj@arthur.rhein-neckar.de>
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{EY} Eric Youngdale, <eric@andante.jic.com>
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{PB} Phil Blundell, <Philip.Blundell@pobox.com>
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@ -88,15 +88,13 @@ sources += $(addsuffix .c,$(elided-routines) \
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+maybe-sysdeps := $(sources) $(sources:.c=.s) $(sources:.c=.S) $(all-headers) \
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$(filter %.c %.S %.s %.h %.sub,$(distribute))
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foo:=$(shell echo '+maybe-sysdeps=$(+maybe-sysdeps)'>&2)
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# Find all the files that have a stub or generic version.
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try-sysdeps := $(foreach dir,$(..)sysdeps/stub $(..)sysdeps/generic \
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$(..)sysdeps/libm-ieee754,\
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# Find all the files that have a generic version.
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try-sysdeps := $(foreach dir,$(..)sysdeps/generic $(..)sysdeps/libm-ieee754,\
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$(addprefix $(dir)/,$(+maybe-sysdeps)))
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foo:=$(shell echo 'try-sysdeps=$(try-sysdeps)'>&2)
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+sysdeps := $(wildcard $(try-sysdeps))
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foo:=$(shell echo 'stub/generic +sysdeps=$(+sysdeps)'>&2)
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foo:=$(shell echo 'generic +sysdeps=$(+sysdeps)'>&2)
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+sysdep-names := $(sort $(patsubst $(..)sysdeps/generic/%,%,\
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$(patsubst $(..)sysdeps/stub/%,%,\
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$(patsubst $(..)sysdeps/libm-ieee754/%,%,\
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$(+sysdeps)))))
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foo:=$(shell echo '+sysdep-names=$(+sysdep-names)' >&2)
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16
SNAP
16
SNAP
@ -99,7 +99,7 @@ diff will be relative to the source tree after applying all previous
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daily diffs. The daily diffs are for people who have relatively low
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bandwidth ftp or uucp connections.
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The files will be available via anonymous ftp from alpha.gnu.ai.mit.edu, in
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The files will be available via anonymous ftp from alpha.gnu.org, in
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directory /gnu/libc and on linux.kernel.org in /pub/software/libs/glibc. The
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directories should look something like:
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@ -110,9 +110,9 @@ directories should look something like:
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.
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.
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Please note that the snapshots on alpha.gnu.ai.mit.edu and on
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Please note that the snapshots on alpha.gnu.org and on
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linux.kernel.org are not always in sync. Patches to some files might
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appear a day a diff earlier or later on alpha than on kernel.
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appear a day a diff earlier or later on alpha than on kernel.
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Use always alpha or always kernel but don't mix them.
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There are sometimes additionally test releases of the add-ons available in
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@ -155,13 +155,13 @@ GETTING HELP, GLIBC DISCUSSIONS, etc
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------------------------------------
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People who want to help with glibc and who test out snapshots regularly should
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get on the libc-alpha@gnu.ai.mit.edu mailing list by sending an email to
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libc-alpha-request@gnu.ai.mit.edu. This list is meant (as the name suggests)
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get on the libc-alpha@gnu.org mailing list by sending an email to
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libc-alpha-request@gnu.org. This list is meant (as the name suggests)
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for the discussion of test releases and also reports for them. People who are
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on this list are welcome to post questions of general interest.
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People who are not only willing to test the snapshots but instead really want
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to help developing glibc should contact libc-hacker-request@gnu.ai.mit.edu to
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to help developing glibc should contact libc-hacker-request@gnu.org to
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be put on the developers mailing list. This list is really only meant for
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developers. No questions about installation problems or other simple topics
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are wanted nor will they be answered.
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@ -174,7 +174,7 @@ you are talking about and it will just cause confusion.
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BUG REPORTS
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-----------
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Send bug reports directly to Ulrich Drepper <drepper@gnu.ai.mit.edu>. Please
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Send bug reports directly to Ulrich Drepper <drepper@gnu.org>. Please
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do *not* use the glibcbug script for reporting bugs in the snapshots.
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glibcbug should only be used for problems with the official released versions.
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We don't like bug reports in the bug database because otherwise the impression
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@ -202,7 +202,7 @@ FORMAT FOR PATCHES
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------------------
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If you have a fix for a bug, or an enhancement to submit, send your patch to
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Ulrich Drepper <drepper@gnu.ai.mit.edu>. Here are some simple guidelines for
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Ulrich Drepper <drepper@gnu.org>. Here are some simple guidelines for
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submitting patches:
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o Use "unified diffs" for patches. A typical command for generating
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23
bits/errno.h
23
bits/errno.h
@ -18,23 +18,24 @@
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/* This file defines the `errno' constants. */
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#if !defined(__Emath_defined) && (defined(_ERRNO_H) || defined(__need_Emath))
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#if !defined __Emath_defined && (defined _ERRNO_H || defined __need_Emath)
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#undef __need_Emath
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#define __Emath_defined 1
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#define EDOM 1
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#define ERANGE 2
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# define EDOM 1
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# define ERANGE 2
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#endif
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#ifdef _ERRNO_H
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#define ENOSYS 3
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#define EINVAL 4
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#define ESPIPE 5
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#define EBADF 6
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#define ENOMEM 7
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#define EACCES 8
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#define ENFILE 9
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#define EMFILE 10
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# define ENOSYS 3
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# define EINVAL 4
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# define ESPIPE 5
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# define EBADF 6
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# define ENOMEM 7
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# define EACCES 8
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# define ENFILE 9
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# define EMFILE 10
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# define ENOMSG 11
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#endif
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#define __set_errno(val) errno = (val)
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@ -121,7 +121,7 @@
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# undef _POSIX_SOURCE
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# define _POSIX_SOURCE 1
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# undef _POSIX_C_SOURCE
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# define _POSIX_C_SOURCE 199309L
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# define _POSIX_C_SOURCE 199506L
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# undef _XOPEN_SOURCE
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# define _XOPEN_SOURCE 500
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# undef _XOPEN_SOURCE_EXTENDED
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@ -159,7 +159,7 @@
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# if defined _XOPEN_SOURCE && (_XOPEN_SOURCE - 0) != 500
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# define _POSIX_C_SOURCE 2
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# else
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# define _POSIX_C_SOURCE 199309L
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# define _POSIX_C_SOURCE 199506L
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# endif
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#endif
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@ -171,8 +171,13 @@
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# define __USE_POSIX2 1
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#endif
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#if defined _POSIX_C_SOURCE && _POSIX_C_SOURCE >= 199309L
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# define __USE_POSIX199309 1
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#ifdef _POSIX_C_SOURCE
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# if _POSIX_C_SOURCE >= 199309L
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# define __USE_POSIX199309 1
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# endif
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# ifndef _XOPEN_SOURCE
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# define _XOPEN_SOURCE 500
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# endif
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#endif
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#ifdef _XOPEN_SOURCE
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@ -39,7 +39,7 @@
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= {{FILEBUF_LITERAL(CHAIN, FLAGS, FD), &_IO_file_jumps},}; \
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default_symbol_version (INAME, NAME, GLIBC_2.1)
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#else
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#define DEF_STDFILE(INAME, FD, CHAIN, FLAGS) \
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#define DEF_STDFILE(INAME, NAME, FD, CHAIN, FLAGS) \
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struct _IO_FILE_complete INAME \
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= {{FILEBUF_LITERAL(CHAIN, FLAGS, FD), &_IO_file_jumps},}; \
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default_symbol_version (INAME, NAME, GLIBC_2.1)
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@ -215,6 +215,9 @@ _IO_str_seekoff (fp, offset, dir, mode)
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_IO_ssize_t cur_size = _IO_str_count (fp);
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_IO_fpos64_t new_pos = EOF;
|
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|
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if (mode == 0 && (fp->_flags & _IO_TIED_PUT_GET))
|
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mode = (fp->_flags & _IO_CURRENTLY_PUTTING ? _IOS_OUTPUT : _IOS_INPUT);
|
||||
|
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/* Move the get pointer, if requested. */
|
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if (mode & _IOS_INPUT)
|
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{
|
||||
|
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@ -36,6 +36,11 @@ available. If you define this macro with a value of @code{2}, then both
|
||||
the functionality from the POSIX.1 standard and the functionality from
|
||||
the POSIX.2 standard (IEEE Standard 1003.2) are made available. This is
|
||||
in addition to the @w{ISO C} facilities.
|
||||
|
||||
The Single Unix Specification specify that setting this macro to the
|
||||
value @code{199506L} selects all the values specified by the POSIX
|
||||
standards plus those of the Single Unix Specification, i.e., is the
|
||||
same as if @code{_XOPEN_SOURCE} is set to @code{500} (see below).
|
||||
@end defvr
|
||||
|
||||
@comment (none)
|
||||
@ -88,7 +93,7 @@ available which are necessary for the X/Open Unix brand.
|
||||
|
||||
If the macro @code{_XOPEN_SOURCE} has the value @math{500} this includes
|
||||
all functionality described so far plus some new definitions from the
|
||||
Single Unix specification, @w{version 2}.
|
||||
Single Unix Specification, @w{version 2}.
|
||||
@end defvr
|
||||
|
||||
@comment (NONE)
|
||||
|
||||
@ -340,7 +340,7 @@ value. Use @code{readdir_r} when this is critical.
|
||||
|
||||
@comment dirent.h
|
||||
@comment GNU
|
||||
@deftypefun int readdir_r (DIR *@var{dirstream}, struct *@var{entry}, struct **@var{result})
|
||||
@deftypefun int readdir_r (DIR *@var{dirstream}, struct dirent *@var{entry}, struct dirent **@var{result})
|
||||
This function is the reentrant version of @code{readdir}. Like
|
||||
@code{readdir} it returns the next entry from the directory. But to
|
||||
prevent conflicts for simultaneously running threads the result is not
|
||||
@ -1783,6 +1783,10 @@ waste of the server's memory to cache them a second time. In this use
|
||||
the sticky bit also says that the filesystem may fail to record the
|
||||
file's modification time onto disk reliably (the idea being that no-one
|
||||
cares for a swap file).
|
||||
|
||||
This bit is only available on BSD systems (and those derived from
|
||||
them). Therefore one has to use the @code{_BSD_SOURCE} feature select
|
||||
macro to get the definition (@pxref{Feature Test Macros}).
|
||||
@end table
|
||||
|
||||
The actual bit values of the symbols are listed in the table above
|
||||
|
||||
@ -538,11 +538,11 @@ include the file @code{<stub-tag.h>} into your file. This causes the
|
||||
function to be listed in the installed @code{<gnu/stubs.h>}, and
|
||||
makes GNU ld warn when the function is used.
|
||||
|
||||
Some rare functions are only useful on specific systems and aren't
|
||||
defined at all on others; these do not appear anywhere in the
|
||||
system-independent source code or makefiles (including the
|
||||
@file{generic} and @file{stub} directories), only in the
|
||||
system-dependent @file{Makefile} in the specific system's subdirectory.
|
||||
Some rare functions are only useful on specific systems and
|
||||
aren't defined at all on others; these do not appear anywhere
|
||||
in the system-independent source code or makefiles (including the
|
||||
@file{generic}), only in the system-dependent @file{Makefile} in the
|
||||
specific system's subdirectory.
|
||||
|
||||
If you come across a file that is in one of the main source directories
|
||||
(@file{string}, @file{stdio}, etc.), and you want to write a machine- or
|
||||
|
||||
@ -1769,6 +1769,12 @@ completely established, will fail with @code{EALREADY}.
|
||||
The socket @var{socket} is non-blocking and already has a pending
|
||||
connection in progress (see @code{EINPROGRESS} above).
|
||||
@end table
|
||||
|
||||
This function is defined as a cancelation point in multi-threaded
|
||||
programs. So one has to be prepared for this and make sure that
|
||||
possibly allocated resources (like memory, files descriptors,
|
||||
semaphores or whatever) are freed even if the thread is cancel.
|
||||
@c @xref{pthread_cleanup_push}, for a method how to do this.
|
||||
@end deftypefun
|
||||
|
||||
@node Listening
|
||||
@ -1897,6 +1903,12 @@ The descriptor @var{socket} does not support this operation.
|
||||
@var{socket} has nonblocking mode set, and there are no pending
|
||||
connections immediately available.
|
||||
@end table
|
||||
|
||||
This function is defined as a cancelation point in multi-threaded
|
||||
programs. So one has to be prepared for this and make sure that
|
||||
possibly allocated resources (like memory, files descriptors,
|
||||
semaphores or whatever) are freed even if the thread is cancel.
|
||||
@c @xref{pthread_cleanup_push}, for a method how to do this.
|
||||
@end deftypefun
|
||||
|
||||
The @code{accept} function is not allowed for sockets using
|
||||
@ -2023,6 +2035,12 @@ case, @code{send} generates a @code{SIGPIPE} signal first; if that
|
||||
signal is ignored or blocked, or if its handler returns, then
|
||||
@code{send} fails with @code{EPIPE}.
|
||||
@end table
|
||||
|
||||
This function is defined as a cancelation point in multi-threaded
|
||||
programs. So one has to be prepared for this and make sure that
|
||||
possibly allocated resources (like memory, files descriptors,
|
||||
semaphores or whatever) are freed even if the thread is cancel.
|
||||
@c @xref{pthread_cleanup_push}, for a method how to do this.
|
||||
@end deftypefun
|
||||
|
||||
@node Receiving Data
|
||||
@ -2067,6 +2085,12 @@ The operation was interrupted by a signal before any data was read.
|
||||
@item ENOTCONN
|
||||
You never connected this socket.
|
||||
@end table
|
||||
|
||||
This function is defined as a cancelation point in multi-threaded
|
||||
programs. So one has to be prepared for this and make sure that
|
||||
possibly allocated resources (like memory, files descriptors,
|
||||
semaphores or whatever) are freed even if the thread is cancel.
|
||||
@c @xref{pthread_cleanup_push}, for a method how to do this.
|
||||
@end deftypefun
|
||||
|
||||
@node Socket Data Options
|
||||
@ -2366,6 +2390,12 @@ system on your machine usually does not know this.
|
||||
|
||||
It is also possible for one call to @code{sendto} to report an error
|
||||
due to a problem related to a previous call.
|
||||
|
||||
This function is defined as a cancelation point in multi-threaded
|
||||
programs. So one has to be prepared for this and make sure that
|
||||
possibly allocated resources (like memory, files descriptors,
|
||||
semaphores or whatever) are freed even if the thread is cancel.
|
||||
@c @xref{pthread_cleanup_push}, for a method how to do this.
|
||||
@end deftypefun
|
||||
|
||||
@node Receiving Datagrams
|
||||
@ -2398,6 +2428,12 @@ if you are not interested in this information.
|
||||
The @var{flags} are interpreted the same way as for @code{recv}
|
||||
(@pxref{Socket Data Options}). The return value and error conditions
|
||||
are also the same as for @code{recv}.
|
||||
|
||||
This function is defined as a cancelation point in multi-threaded
|
||||
programs. So one has to be prepared for this and make sure that
|
||||
possibly allocated resources (like memory, files descriptors,
|
||||
semaphores or whatever) are freed even if the thread is cancel.
|
||||
@c @xref{pthread_cleanup_push}, for a method how to do this.
|
||||
@end deftypefun
|
||||
|
||||
You can use plain @code{recv} (@pxref{Receiving Data}) instead of
|
||||
@ -2420,11 +2456,23 @@ you don't want to specify @var{flags} (@pxref{I/O Primitives}).
|
||||
@comment sys/socket.h
|
||||
@comment BSD
|
||||
@deftypefun int sendmsg (int @var{socket}, const struct msghdr *@var{message}, int @var{flags})
|
||||
|
||||
This function is defined as a cancelation point in multi-threaded
|
||||
programs. So one has to be prepared for this and make sure that
|
||||
possibly allocated resources (like memory, files descriptors,
|
||||
semaphores or whatever) are freed even if the thread is cancel.
|
||||
@c @xref{pthread_cleanup_push}, for a method how to do this.
|
||||
@end deftypefun
|
||||
|
||||
@comment sys/socket.h
|
||||
@comment BSD
|
||||
@deftypefun int recvmsg (int @var{socket}, struct msghdr *@var{message}, int @var{flags})
|
||||
|
||||
This function is defined as a cancelation point in multi-threaded
|
||||
programs. So one has to be prepared for this and make sure that
|
||||
possibly allocated resources (like memory, files descriptors,
|
||||
semaphores or whatever) are freed even if the thread is cancel.
|
||||
@c @xref{pthread_cleanup_push}, for a method how to do this.
|
||||
@end deftypefun
|
||||
@end ignore
|
||||
|
||||
|
||||
@ -82,7 +82,7 @@ string.
|
||||
|
||||
The amount of memory allocated for the character array may extend past
|
||||
the null character that normally marks the end of the string. In this
|
||||
document, the term @dfn{allocation size} is always used to refer to the
|
||||
document, the term @dfn{allocated size} is always used to refer to the
|
||||
total amount of memory allocated for the string, while the term
|
||||
@dfn{length} refers to the number of characters up to (but not
|
||||
including) the terminating null character.
|
||||
@ -155,8 +155,8 @@ strlen ("hello, world")
|
||||
@end smallexample
|
||||
|
||||
When applied to a character array, the @code{strlen} function returns
|
||||
the length of the string stored there, not its allocation size. You can
|
||||
get the allocation size of the character array that holds a string using
|
||||
the length of the string stored there, not its allocated size. You can
|
||||
get the allocated size of the character array that holds a string using
|
||||
the @code{sizeof} operator:
|
||||
|
||||
@smallexample
|
||||
@ -166,6 +166,22 @@ sizeof (string)
|
||||
strlen (string)
|
||||
@result{} 12
|
||||
@end smallexample
|
||||
|
||||
But beware, this will not work unless @var{string} is the character
|
||||
array itself, not a pointer to it. For example:
|
||||
|
||||
@smallexample
|
||||
char string[32] = "hello, world";
|
||||
char *ptr = string;
|
||||
sizeof (string)
|
||||
@result{} 32
|
||||
sizeof (ptr)
|
||||
@result{} 4 /* @r{(on a machine with 4 byte pointers)} */
|
||||
@end smallexample
|
||||
|
||||
This is an easy mistake to make when you are working with functions that
|
||||
take string arguments; those arguments are always pointers, not arrays.
|
||||
|
||||
@end deftypefun
|
||||
|
||||
@comment string.h
|
||||
@ -397,7 +413,7 @@ is implemented to be useful in contexts where this behaviour of the
|
||||
@emph{first} written null character.
|
||||
|
||||
This function is not part of ISO or POSIX but was found useful while
|
||||
developing GNU C Library itself.
|
||||
developing the GNU C Library itself.
|
||||
|
||||
Its behaviour is undefined if the strings overlap.
|
||||
@end deftypefun
|
||||
@ -406,12 +422,11 @@ Its behaviour is undefined if the strings overlap.
|
||||
@comment GNU
|
||||
@deftypefn {Macro} {char *} strdupa (const char *@var{s})
|
||||
This function is similar to @code{strdup} but allocates the new string
|
||||
using @code{alloca} instead of @code{malloc}
|
||||
@pxref{Variable Size Automatic}. This means of course the returned
|
||||
string has the same limitations as any block of memory allocated using
|
||||
@code{alloca}.
|
||||
using @code{alloca} instead of @code{malloc} (@pxref{Variable Size
|
||||
Automatic}). This means of course the returned string has the same
|
||||
limitations as any block of memory allocated using @code{alloca}.
|
||||
|
||||
For obvious reasons @code{strdupa} is implemented only as a macro. I.e.,
|
||||
For obvious reasons @code{strdupa} is implemented only as a macro;
|
||||
you cannot get the address of this function. Despite this limitation
|
||||
it is a useful function. The following code shows a situation where
|
||||
using @code{malloc} would be a lot more expensive.
|
||||
@ -434,8 +449,7 @@ allocates the new string using @code{alloca}
|
||||
@pxref{Variable Size Automatic}. The same advantages and limitations
|
||||
of @code{strdupa} are valid for @code{strndupa}, too.
|
||||
|
||||
This function is implemented only as a macro which means one cannot
|
||||
get the address of it.
|
||||
This function is implemented only as a macro, just like @code{strdupa}.
|
||||
|
||||
@code{strndupa} is only available if GNU CC is used.
|
||||
@end deftypefn
|
||||
@ -613,10 +627,10 @@ is an initial substring of @var{s2}, then @var{s1} is considered to be
|
||||
@comment BSD
|
||||
@deftypefun int strcasecmp (const char *@var{s1}, const char *@var{s2})
|
||||
This function is like @code{strcmp}, except that differences in case are
|
||||
ignored. How uppercase and lowercase character are related is
|
||||
ignored. How uppercase and lowercase characters are related is
|
||||
determined by the currently selected locale. In the standard @code{"C"}
|
||||
locale the characters @"A and @"a do not match but in a locale which
|
||||
regards this characters as parts of the alphabet they do match.
|
||||
regards these characters as parts of the alphabet they do match.
|
||||
|
||||
@code{strcasecmp} is derived from BSD.
|
||||
@end deftypefun
|
||||
@ -625,8 +639,8 @@ regards this characters as parts of the alphabet they do match.
|
||||
@comment BSD
|
||||
@deftypefun int strncasecmp (const char *@var{s1}, const char *@var{s2}, size_t @var{n})
|
||||
This function is like @code{strncmp}, except that differences in case
|
||||
are ignored. Like for @code{strcasecmp} it is locale dependent how
|
||||
uppercase and lowercase character are related.
|
||||
are ignored. Like @code{strcasecmp}, it is locale dependent how
|
||||
uppercase and lowercase characters are related.
|
||||
|
||||
@code{strncasecmp} is a GNU extension.
|
||||
@end deftypefun
|
||||
@ -671,7 +685,7 @@ function. In fact, if @var{s1} and @var{s2} contain no digits,
|
||||
|
||||
Basically, we compare strings normally (character by character), until
|
||||
we find a digit in each string - then we enter a special comparison
|
||||
mode, where each sequence of digit is taken as a whole. If we reach the
|
||||
mode, where each sequence of digits is taken as a whole. If we reach the
|
||||
end of these two parts without noticing a difference, we return to the
|
||||
standard comparison mode. There are two types of numeric parts:
|
||||
"integral" and "fractional" (those begin with a '0'). The types
|
||||
@ -693,7 +707,7 @@ than the other one; else the comparison behaves normally.
|
||||
|
||||
@smallexample
|
||||
strverscmp ("no digit", "no digit")
|
||||
@result{} 0 /* @r{same behaviour as strverscmp.} */
|
||||
@result{} 0 /* @r{same behaviour as strcmp.} */
|
||||
strverscmp ("item#99", "item#100")
|
||||
@result{} <0 /* @r{same prefix, but 99 < 100.} */
|
||||
strverscmp ("alpha1", "alpha001")
|
||||
@ -873,7 +887,8 @@ sort_strings_fast (char **array, int nstrings)
|
||||
|
||||
/* @r{The return value is not interesting because we know}
|
||||
@r{how long the transformed string is.} */
|
||||
(void) strxfrm (transformed, array[i], transformed_length + 1);
|
||||
(void) strxfrm (transformed, array[i],
|
||||
transformed_length + 1);
|
||||
@}
|
||||
|
||||
temp_array[i].transformed = transformed;
|
||||
@ -1096,12 +1111,11 @@ a null pointer.
|
||||
@end deftypefun
|
||||
|
||||
@strong{Warning:} Since @code{strtok} alters the string it is parsing,
|
||||
you always copy the string to a temporary buffer before parsing it with
|
||||
@code{strtok}. If you allow @code{strtok} to modify a string that came
|
||||
from another part of your program, you are asking for trouble; that
|
||||
string may be part of a data structure that could be used for other
|
||||
purposes during the parsing, when alteration by @code{strtok} makes the
|
||||
data structure temporarily inaccurate.
|
||||
you should always copy the string to a temporary buffer before parsing
|
||||
it with @code{strtok}. If you allow @code{strtok} to modify a string
|
||||
that came from another part of your program, you are asking for trouble;
|
||||
that string might be used for other purposes after @code{strtok} has
|
||||
modified it, and it would not have the expected value.
|
||||
|
||||
The string that you are operating on might even be a constant. Then
|
||||
when @code{strtok} tries to modify it, your program will get a fatal
|
||||
@ -1146,14 +1160,13 @@ which overcome the limitation of non-reentrancy.
|
||||
@comment string.h
|
||||
@comment POSIX
|
||||
@deftypefun {char *} strtok_r (char *@var{newstring}, const char *@var{delimiters}, char **@var{save_ptr})
|
||||
Just like @code{strtok} this function splits the string into several
|
||||
tokens which can be accessed be successive calls to @code{strtok_r}.
|
||||
The difference is that the information about the next token is not set
|
||||
up in some internal state information. Instead the caller has to
|
||||
provide another argument @var{save_ptr} which is a pointer to a string
|
||||
pointer. Calling @code{strtok_r} with a null pointer for
|
||||
@var{newstring} and leaving @var{save_ptr} between the calls unchanged
|
||||
does the job without limiting reentrancy.
|
||||
Just like @code{strtok}, this function splits the string into several
|
||||
tokens which can be accessed by successive calls to @code{strtok_r}.
|
||||
The difference is that the information about the next token is stored in
|
||||
the space pointed to by the third argument, @var{save_ptr}, which is a
|
||||
pointer to a string pointer. Calling @code{strtok_r} with a null
|
||||
pointer for @var{newstring} and leaving @var{save_ptr} between the calls
|
||||
unchanged does the job without hindering reentrancy.
|
||||
|
||||
This function is defined in POSIX-1 and can be found on many systems
|
||||
which support multi-threading.
|
||||
@ -1162,12 +1175,12 @@ which support multi-threading.
|
||||
@comment string.h
|
||||
@comment BSD
|
||||
@deftypefun {char *} strsep (char **@var{string_ptr}, const char *@var{delimiter})
|
||||
A second reentrant approach is to avoid the additional first argument.
|
||||
The initialization of the moving pointer has to be done by the user.
|
||||
Successive calls of @code{strsep} move the pointer along the tokens
|
||||
separated by @var{delimiter}, returning the address of the next token
|
||||
and updating @var{string_ptr} to point to the beginning of the next
|
||||
token.
|
||||
This function is just @code{strtok_r} with the @var{newstring} argument
|
||||
replaced by the @var{save_ptr} argument. The initialization of the
|
||||
moving pointer has to be done by the user. Successive calls to
|
||||
@code{strsep} move the pointer along the tokens separated by
|
||||
@var{delimiter}, returning the address of the next token and updating
|
||||
@var{string_ptr} to point to the beginning of the next token.
|
||||
|
||||
This function was introduced in 4.3BSD and therefore is widely available.
|
||||
@end deftypefun
|
||||
@ -1204,15 +1217,101 @@ token = strsep (&running, delimiters); /* token => NULL */
|
||||
To store or transfer binary data in environments which only support text
|
||||
one has to encode the binary data by mapping the input bytes to
|
||||
characters in the range allowed for storing or transfering. SVID
|
||||
systems (and nowadays XPG compliant systems) have such a function in the
|
||||
C library.
|
||||
systems (and nowadays XPG compliant systems) provide minimal support for
|
||||
this task.
|
||||
|
||||
@comment stdlib.h
|
||||
@comment XPG
|
||||
@deftypefun {char *} l64a (long int @var{n})
|
||||
This function encodes an input value with 32 bits using characters from
|
||||
the basic character set. Groups of 6 bits are encoded using the
|
||||
following table:
|
||||
This function encodes a 32-bit input value using characters from the
|
||||
basic character set. It returns a pointer to a 6 character buffer which
|
||||
contains an encoded version of @var{n}. To encode a series of bytes the
|
||||
user must copy the returned string to a destination buffer. It returns
|
||||
the empty string if @var{n} is zero, which is somewhat bizarre but
|
||||
mandated by the standard.@*
|
||||
@strong{Warning:} Since a static buffer is used this function should not
|
||||
be used in multi-threaded programs. There is no thread-safe alternative
|
||||
to this function in the C library.@*
|
||||
@strong{Compatibility Note:} The XPG standard states that the return
|
||||
value of @code{l64a} is undefined if @var{n} is negative. In the GNU
|
||||
implementation, @code{l64a} treats its argument as unsigned, so it will
|
||||
return a sensible encoding for any nonzero @var{n}; however, portable
|
||||
programs should not rely on this.
|
||||
|
||||
To encode a large buffer @code{l64a} must be called in a loop, once for
|
||||
each 32-bit word of the buffer. For example, one could do something
|
||||
like this:
|
||||
|
||||
@smallexample
|
||||
char *
|
||||
encode (const void *buf, size_t len)
|
||||
@{
|
||||
/* @r{We know in advance how long the buffer has to be.} */
|
||||
unsigned char *in = (unsigned char *) buf;
|
||||
char *out = malloc (6 + ((len + 3) / 4) * 6 + 1);
|
||||
char *cp = out;
|
||||
|
||||
/* @r{Encode the length.} */
|
||||
/* @r{Using `htonl' is necessary so that the data can be}
|
||||
@r{decoded even on machines with different byte order.} */
|
||||
|
||||
cp = mempcpy (cp, l64a (htonl (len)), 6);
|
||||
|
||||
while (len > 3)
|
||||
@{
|
||||
unsigned long int n = *in++;
|
||||
n = (n << 8) | *in++;
|
||||
n = (n << 8) | *in++;
|
||||
n = (n << 8) | *in++;
|
||||
len -= 4;
|
||||
if (n)
|
||||
cp = mempcpy (cp, l64a (htonl (n)), 6);
|
||||
else
|
||||
/* @r{`l64a' returns the empty string for n==0, so we }
|
||||
@r{must generate its encoding (}"......"@r{) by hand.} */
|
||||
cp = stpcpy (cp, "......");
|
||||
@}
|
||||
if (len > 0)
|
||||
@{
|
||||
unsigned long int n = *in++;
|
||||
if (--len > 0)
|
||||
@{
|
||||
n = (n << 8) | *in++;
|
||||
if (--len > 0)
|
||||
n = (n << 8) | *in;
|
||||
@}
|
||||
memcpy (cp, l64a (htonl (n)), 6);
|
||||
cp += 6;
|
||||
@}
|
||||
*cp = '\0';
|
||||
return out;
|
||||
@}
|
||||
@end smallexample
|
||||
|
||||
It is strange that the library does not provide the complete
|
||||
functionality needed but so be it.
|
||||
|
||||
@end deftypefun
|
||||
|
||||
To decode data produced with @code{l64a} the following function should be
|
||||
used.
|
||||
|
||||
@comment stdlib.h
|
||||
@comment XPG
|
||||
@deftypefun {long int} a64l (const char *@var{string})
|
||||
The parameter @var{string} should contain a string which was produced by
|
||||
a call to @code{l64a}. The function processes at least 6 characters of
|
||||
this string, and decodes the characters it finds according to the table
|
||||
below. It stops decoding when it finds a character not in the table,
|
||||
rather like @code{atoi}; if you have a buffer which has been broken into
|
||||
lines, you must be careful to skip over the end-of-line characters.
|
||||
|
||||
The decoded number is returned as a @code{long int} value.
|
||||
@end deftypefun
|
||||
|
||||
The @code{l64a} and @code{a64l} functions use a base 64 encoding, in
|
||||
which each character of an encoded string represents six bits of an
|
||||
input word. These symbols are used for the base 64 digits:
|
||||
|
||||
@multitable {xxxxx} {xxx} {xxx} {xxx} {xxx} {xxx} {xxx} {xxx} {xxx}
|
||||
@item @tab 0 @tab 1 @tab 2 @tab 3 @tab 4 @tab 5 @tab 6 @tab 7
|
||||
@ -1234,85 +1333,10 @@ following table:
|
||||
@tab @code{w} @tab @code{x} @tab @code{y} @tab @code{z}
|
||||
@end multitable
|
||||
|
||||
The function returns a pointer to a static buffer which contains the
|
||||
string representing of the encoding of @var{n}. To encoded a series of
|
||||
bytes the use should append the new string to the destination buffer.
|
||||
@emph{Warning:} Since a static buffer is used this function should not
|
||||
be used in multi-threaded programs. There is no thread-safe alternative
|
||||
to this function in the C library.
|
||||
@end deftypefun
|
||||
|
||||
Alone the @code{l64a} function is not usable. To encode arbitrary
|
||||
sequences of bytes one needs some more code and this could look like
|
||||
this:
|
||||
|
||||
@smallexample
|
||||
char *
|
||||
encode (const void *buf, size_t len)
|
||||
@{
|
||||
/* @r{We know in advance how long the buffer has to be.} */
|
||||
unsigned char *in = (unsigned char *) buf;
|
||||
char *out = malloc (6 + ((len + 3) / 4) * 6 + 1);
|
||||
char *cp = out;
|
||||
|
||||
/* @r{Encode the length.} */
|
||||
memcpy (cp, l64a (len), 6);
|
||||
cp += 6;
|
||||
|
||||
while (len > 3)
|
||||
@{
|
||||
unsigned long int n = *in++;
|
||||
n = (n << 8) | *in++;
|
||||
n = (n << 8) | *in++;
|
||||
n = (n << 8) | *in++;
|
||||
len -= 4;
|
||||
/* @r{Using `htonl' is necessary so that the data can be}
|
||||
@r{decoded even on machines with different byte order.} */
|
||||
memcpy (cp, l64a (htonl (n)), 6);
|
||||
cp += 6;
|
||||
@}
|
||||
if (len > 0)
|
||||
@{
|
||||
unsigned long int n = *in++;
|
||||
if (--len > 0)
|
||||
@{
|
||||
n = (n << 8) | *in++;
|
||||
if (--len > 0)
|
||||
n = (n << 8) | *in;
|
||||
@}
|
||||
memcpy (cp, l64a (htonl (n)), 6);
|
||||
cp += 6;
|
||||
@}
|
||||
*cp = '\0';
|
||||
return out;
|
||||
@}
|
||||
@end smallexample
|
||||
|
||||
It is strange that the library does not provide the complete
|
||||
functionality needed but so be it. There are some other encoding
|
||||
methods which are much more widely used (UU encoding, Base64 encoding).
|
||||
This encoding scheme is not standard. There are some other encoding
|
||||
methods which are much more widely used (UU encoding, MIME encoding).
|
||||
Generally, it is better to use one of these encodings.
|
||||
|
||||
To decode data produced with @code{l64a} the following function should be
|
||||
used.
|
||||
|
||||
@comment stdlib.h
|
||||
@comment XPG
|
||||
@deftypefun {long int} a64l (const char *@var{string})
|
||||
The parameter @var{string} should contain a string which was produced by
|
||||
a call to @code{l64a}. The function processes the next 6 characters and
|
||||
decodes the characters it finds according to the table above.
|
||||
Characters not in the conversion table are simply ignored. This is
|
||||
useful for breaking the information in lines in which case the end of
|
||||
line characters are simply ignored.
|
||||
|
||||
The decoded number is returned at the end as a @code{long int} value.
|
||||
Consecutive calls to this function are possible but the caller must make
|
||||
sure the buffer pointer is update after each call to @code{a64l} since
|
||||
this function does not modify the buffer pointer. Every call consumes 6
|
||||
characters.
|
||||
@end deftypefun
|
||||
|
||||
@node Argz and Envz Vectors
|
||||
@section Argz and Envz Vectors
|
||||
|
||||
|
||||
@ -1004,6 +1004,7 @@ cbrt_test (void)
|
||||
check_eps ("cbrt (8) == 2", FUNC(cbrt) (8), 2, CHOOSE (5e-17L, 0, 0));
|
||||
check_eps ("cbrt (-27) == -3", FUNC(cbrt) (-27.0), -3.0,
|
||||
CHOOSE (3e-16L, 5e-16, 0));
|
||||
check ("cbrt (0.970299) == 0.99", FUNC(cbrt) (0.970299), 0.99);
|
||||
}
|
||||
|
||||
|
||||
|
||||
@ -61,7 +61,7 @@ include ../Rules
|
||||
$(MSGFMT) -o $@ $<
|
||||
|
||||
# Install the message object files as libc.po in the language directory.
|
||||
$(mo-installed): %.mo; $(do-install)
|
||||
$(mo-installed): %.mo; $(do-install) || exit 0
|
||||
|
||||
.PHONY: linguas linguas.mo
|
||||
linguas: $(ALL_LINGUAS:=.po)
|
||||
|
||||
63
posix/glob.c
63
posix/glob.c
@ -16,7 +16,7 @@
|
||||
Boston, MA 02111-1307, USA. */
|
||||
|
||||
/* AIX requires this to be the first thing in the file. */
|
||||
#if defined (_AIX) && !defined (__GNUC__)
|
||||
#if defined _AIX && !defined __GNUC__
|
||||
#pragma alloca
|
||||
#endif
|
||||
|
||||
@ -169,6 +169,11 @@ extern void bcopy ();
|
||||
# define strcoll strcmp
|
||||
#endif
|
||||
|
||||
#if !defined HAVE_MEMPCPY && __GLIBC__ - 0 == 2 && __GLIBC_MINOR__ >= 1
|
||||
# define HAVE_MEMPCPY 1
|
||||
# define mempcpy(Dest, Src, Len) __mempcpy (Dest, Src, Len)
|
||||
#endif
|
||||
|
||||
|
||||
#ifndef __GNU_LIBRARY__
|
||||
# ifdef __GNUC__
|
||||
@ -417,8 +422,12 @@ glob (pattern, flags, errfunc, pglob)
|
||||
int result;
|
||||
|
||||
/* Construct the new glob expression. */
|
||||
#ifdef HAVE_MEMPCPY
|
||||
mempcpy (mempcpy (alt_start, p, next - p), rest, rest_len);
|
||||
#else
|
||||
memcpy (alt_start, p, next - p);
|
||||
memcpy (&alt_start[next - p], rest, rest_len);
|
||||
#endif
|
||||
|
||||
result = glob (onealt,
|
||||
((flags & ~(GLOB_NOCHECK|GLOB_NOMAGIC))
|
||||
@ -479,8 +488,12 @@ glob (pattern, flags, errfunc, pglob)
|
||||
{
|
||||
dirlen = filename - pattern;
|
||||
dirname = (char *) __alloca (dirlen + 1);
|
||||
#ifdef HAVE_MEMPCPY
|
||||
*((char *) mempcpy (dirname, pattern, dirlen)) = '\0';
|
||||
#else
|
||||
memcpy (dirname, pattern, dirlen);
|
||||
dirname[dirlen] = '\0';
|
||||
#endif
|
||||
++filename;
|
||||
}
|
||||
|
||||
@ -568,8 +581,13 @@ glob (pattern, flags, errfunc, pglob)
|
||||
char *newp;
|
||||
size_t home_len = strlen (home_dir);
|
||||
newp = (char *) __alloca (home_len + dirlen);
|
||||
# ifdef HAVE_MEMPCPY
|
||||
mempcpy (mempcpy (newp, home_dir, home_len),
|
||||
&dirname[1], dirlen);
|
||||
# else
|
||||
memcpy (newp, home_dir, home_len);
|
||||
memcpy (&newp[home_len], &dirname[1], dirlen);
|
||||
# endif
|
||||
dirname = newp;
|
||||
}
|
||||
}
|
||||
@ -585,8 +603,13 @@ glob (pattern, flags, errfunc, pglob)
|
||||
else
|
||||
{
|
||||
user_name = (char *) __alloca (end_name - dirname);
|
||||
# ifdef HAVE_MEMPCPY
|
||||
*((char *) mempcpy (user_name, dirname + 1, end_name - dirname))
|
||||
= '\0';
|
||||
# else
|
||||
memcpy (user_name, dirname + 1, end_name - dirname);
|
||||
user_name[end_name - dirname - 1] = '\0';
|
||||
# endif
|
||||
}
|
||||
|
||||
/* Look up specific user's home directory. */
|
||||
@ -614,9 +637,14 @@ glob (pattern, flags, errfunc, pglob)
|
||||
size_t home_len = strlen (home_dir);
|
||||
size_t rest_len = end_name == NULL ? 0 : strlen (end_name);
|
||||
newp = (char *) __alloca (home_len + rest_len + 1);
|
||||
# ifdef HAVE_MEMPCPY
|
||||
*((char *) mempcpy (mempcpy (newp, home_dir, home_len),
|
||||
end_name, rest_len)) = '\0';
|
||||
# else
|
||||
memcpy (newp, home_dir, home_len);
|
||||
memcpy (&newp[home_len], end_name, rest_len);
|
||||
newp[home_len + rest_len] = '\0';
|
||||
# endif
|
||||
dirname = newp;
|
||||
}
|
||||
}
|
||||
@ -838,9 +866,17 @@ prefix_array (dirname, array, n)
|
||||
return 1;
|
||||
}
|
||||
|
||||
#ifdef HAVE_MEMPCPY
|
||||
{
|
||||
char *endp = (char *) mempcpy (new, dirname, dirlen);
|
||||
*endp++ = '/';
|
||||
mempcpy (endp, array[i], eltlen);
|
||||
}
|
||||
#else
|
||||
memcpy (new, dirname, dirlen);
|
||||
new[dirlen] = '/';
|
||||
memcpy (&new[dirlen + 1], array[i], eltlen);
|
||||
#endif
|
||||
free ((__ptr_t) array[i]);
|
||||
array[i] = new;
|
||||
}
|
||||
@ -922,6 +958,18 @@ glob_in_dir (pattern, directory, flags, errfunc, pglob)
|
||||
(flags & GLOB_ERR))
|
||||
return GLOB_ABORTED;
|
||||
}
|
||||
else if (pattern[0] == '\0')
|
||||
{
|
||||
/* This is a special case for matching directories like in
|
||||
"*a/". */
|
||||
names = (struct globlink *) __alloca (sizeof (struct globlink));
|
||||
names->name = (char *) malloc (1);
|
||||
if (names->name == NULL)
|
||||
goto memory_error;
|
||||
names->name[0] = '\0';
|
||||
names->next = NULL;
|
||||
nfound = 1;
|
||||
}
|
||||
else
|
||||
while (1)
|
||||
{
|
||||
@ -941,8 +989,13 @@ glob_in_dir (pattern, directory, flags, errfunc, pglob)
|
||||
names->name = (char *) malloc (len + 1);
|
||||
if (names->name == NULL)
|
||||
goto memory_error;
|
||||
#ifdef HAVE_MEMPCPY
|
||||
*((char *) mempcpy ((__ptr_t) names->name, pattern, len))
|
||||
= '\0';
|
||||
#else
|
||||
memcpy ((__ptr_t) names->name, pattern, len);
|
||||
names->name[len] = '\0';
|
||||
#endif
|
||||
names->next = NULL;
|
||||
nfound = 1;
|
||||
break;
|
||||
@ -992,8 +1045,12 @@ glob_in_dir (pattern, directory, flags, errfunc, pglob)
|
||||
= (char *) malloc (len + 1);
|
||||
if (new->name == NULL)
|
||||
goto memory_error;
|
||||
#ifdef HAVE_MEMPCPY
|
||||
*((char *) mempcpy ((__ptr_t) new->name, name, len)) = '\0';
|
||||
#else
|
||||
memcpy ((__ptr_t) new->name, name, len);
|
||||
new->name[len] = '\0';
|
||||
#endif
|
||||
new->next = names;
|
||||
names = new;
|
||||
++nfound;
|
||||
@ -1014,8 +1071,12 @@ glob_in_dir (pattern, directory, flags, errfunc, pglob)
|
||||
names->name = (char *) malloc (len + 1);
|
||||
if (names->name == NULL)
|
||||
goto memory_error;
|
||||
#ifdef HAVE_MEMPCPY
|
||||
*((char *) mempcpy (names->name, pattern, len)) = '\0';
|
||||
#else
|
||||
memcpy (names->name, pattern, len);
|
||||
names->name[len] = '\0';
|
||||
#endif
|
||||
}
|
||||
|
||||
if (nfound != 0)
|
||||
|
||||
@ -158,7 +158,10 @@ _nss_dns_gethostbyname2_r (const char *name, int af, struct hostent *result,
|
||||
|
||||
n = res_search (name, C_IN, type, host_buffer.buf, sizeof (host_buffer.buf));
|
||||
if (n < 0)
|
||||
return errno == ECONNREFUSED ? NSS_STATUS_UNAVAIL : NSS_STATUS_NOTFOUND;
|
||||
{
|
||||
*h_errnop = h_errno;
|
||||
return errno == ECONNREFUSED ? NSS_STATUS_UNAVAIL : NSS_STATUS_NOTFOUND;
|
||||
}
|
||||
|
||||
return getanswer_r (&host_buffer, n, name, type, result, buffer, buflen,
|
||||
h_errnop);
|
||||
@ -251,12 +254,18 @@ _nss_dns_gethostbyaddr_r (const char *addr, int len, int af,
|
||||
n = res_query (qbuf, C_IN, T_PTR, (u_char *)host_buffer.buf,
|
||||
sizeof host_buffer);
|
||||
if (n < 0)
|
||||
return errno == ECONNREFUSED ? NSS_STATUS_UNAVAIL : NSS_STATUS_NOTFOUND;
|
||||
{
|
||||
*h_errnop = h_errno;
|
||||
return errno == ECONNREFUSED ? NSS_STATUS_UNAVAIL : NSS_STATUS_NOTFOUND;
|
||||
}
|
||||
|
||||
status = getanswer_r (&host_buffer, n, qbuf, T_PTR, result, buffer, buflen,
|
||||
h_errnop);
|
||||
if (status != NSS_STATUS_SUCCESS)
|
||||
return status;
|
||||
{
|
||||
*h_errnop = h_errno;
|
||||
return status;
|
||||
}
|
||||
|
||||
#ifdef SUNSECURITY
|
||||
This is not implemented because it is not possible to use the current
|
||||
|
||||
@ -24,7 +24,7 @@ a64l (string)
|
||||
const char *string;
|
||||
{
|
||||
size_t cnt;
|
||||
long int result = 0l;
|
||||
unsigned long int result = 0l;
|
||||
|
||||
for (cnt = 0; cnt < 6; ++cnt)
|
||||
{
|
||||
@ -50,5 +50,5 @@ a64l (string)
|
||||
}
|
||||
}
|
||||
|
||||
return result;
|
||||
return (long int) result;
|
||||
}
|
||||
|
||||
@ -36,21 +36,20 @@ char *
|
||||
l64a (n)
|
||||
long int n;
|
||||
{
|
||||
unsigned long int m = (unsigned long int) n;
|
||||
static char result[7];
|
||||
int cnt;
|
||||
|
||||
if (n <= 0l)
|
||||
/* The value for N == 0 is defined to be the empty string. When a
|
||||
negative value is given the result is undefined. We will
|
||||
return the empty string. */
|
||||
if (m == 0l)
|
||||
/* The value for N == 0 is defined to be the empty string. */
|
||||
return (char *) "";
|
||||
|
||||
result[6] = '\0';
|
||||
|
||||
for (cnt = 5; n > 0; --cnt)
|
||||
for (cnt = 5; m > 0; --cnt)
|
||||
{
|
||||
result[cnt] = conv_table[n & 0x3f];
|
||||
n >>= 6;
|
||||
result[cnt] = conv_table[m & 0x3f];
|
||||
m >>= 6;
|
||||
}
|
||||
|
||||
return &result[cnt + 1];
|
||||
|
||||
@ -18,23 +18,24 @@
|
||||
|
||||
/* This file defines the `errno' constants. */
|
||||
|
||||
#if !defined(__Emath_defined) && (defined(_ERRNO_H) || defined(__need_Emath))
|
||||
#if !defined __Emath_defined && (defined _ERRNO_H || defined __need_Emath)
|
||||
#undef __need_Emath
|
||||
#define __Emath_defined 1
|
||||
|
||||
#define EDOM 1
|
||||
#define ERANGE 2
|
||||
# define EDOM 1
|
||||
# define ERANGE 2
|
||||
#endif
|
||||
|
||||
#ifdef _ERRNO_H
|
||||
#define ENOSYS 3
|
||||
#define EINVAL 4
|
||||
#define ESPIPE 5
|
||||
#define EBADF 6
|
||||
#define ENOMEM 7
|
||||
#define EACCES 8
|
||||
#define ENFILE 9
|
||||
#define EMFILE 10
|
||||
# define ENOSYS 3
|
||||
# define EINVAL 4
|
||||
# define ESPIPE 5
|
||||
# define EBADF 6
|
||||
# define ENOMEM 7
|
||||
# define EACCES 8
|
||||
# define ENFILE 9
|
||||
# define EMFILE 10
|
||||
# define ENOMSG 11
|
||||
#endif
|
||||
|
||||
#define __set_errno(val) errno = (val)
|
||||
|
||||
@ -46,8 +46,10 @@ __cbrt (double x)
|
||||
xm = __frexp (fabs (x), &xe);
|
||||
|
||||
/* If X is not finite or is null return it (with raising exceptions
|
||||
if necessary. */
|
||||
if (xe == 0)
|
||||
if necessary.
|
||||
Note: *Our* version of `frexp' sets XE to zero if the argument is
|
||||
Inf or NaN. This is not portable but faster. */
|
||||
if (xe == 0 && fpclassify (x) <= FP_ZERO)
|
||||
return x + x;
|
||||
|
||||
u = (0.354895765043919860
|
||||
|
||||
@ -46,8 +46,10 @@ __cbrtf (float x)
|
||||
xm = __frexpf (fabsf (x), &xe);
|
||||
|
||||
/* If X is not finite or is null return it (with raising exceptions
|
||||
if necessary. */
|
||||
if (xe == 0)
|
||||
if necessary.
|
||||
Note: *Our* version of `frexp' sets XE to zero if the argument is
|
||||
Inf or NaN. This is not portable but faster. */
|
||||
if (xe == 0 && fpclassify (x) <= FP_ZERO)
|
||||
return x + x;
|
||||
|
||||
u = (0.492659620528969547 + (0.697570460207922770
|
||||
|
||||
@ -48,8 +48,10 @@ __cbrtl (long double x)
|
||||
xm = __frexpl (fabs (x), &xe);
|
||||
|
||||
/* If X is not finite or is null return it (with raising exceptions
|
||||
if necessary. */
|
||||
if (xe == 0)
|
||||
if necessary.
|
||||
Note: *Our* version of `frexp' sets XE to zero if the argument is
|
||||
Inf or NaN. This is not portable but faster. */
|
||||
if (xe == 0 && fpclassify (x) <= FP_ZERO)
|
||||
return x + x;
|
||||
|
||||
u = (0.338058687610520237
|
||||
|
||||
@ -1 +1 @@
|
||||
#include <sysdeps/stub/sethostid.c>
|
||||
#include <sysdeps/generic/sethostid.c>
|
||||
|
||||
@ -1,20 +1,20 @@
|
||||
# File name Caller Syscall name # args Strong name Weak names
|
||||
|
||||
accept - accept 3 accept
|
||||
accept - accept 3 __libc_accept accept
|
||||
bind - bind 3 bind
|
||||
connect - connect 3 __connect connect
|
||||
connect - connect 3 __libc_connect __connect connect
|
||||
gethostid - gethostid 0 gethostid
|
||||
gethostname - gethostname 2 __gethostname gethostname
|
||||
getpeername - getpeername 3 getpeername
|
||||
getsockname - getsockname 3 getsockname
|
||||
getsockopt - getsockopt 5 getsockopt
|
||||
listen - listen 2 listen
|
||||
recv - recv 4 recv
|
||||
recvfrom - recvfrom 6 recvfrom
|
||||
recvmsg - recvmsg 3 recvmsg
|
||||
send - send 4 __send send
|
||||
sendmsg - sendmsg 3 sendmsg
|
||||
sendto - sendto 6 sendto
|
||||
recv - recv 4 __libc_recv recv
|
||||
recvfrom - recvfrom 6 __libc_recvfrom recvfrom
|
||||
recvmsg - recvmsg 3 __libc_recvmsg recvmsg
|
||||
send - send 4 __libc_send __send send
|
||||
sendmsg - sendmsg 3 __libc_sendmsg sendmsg
|
||||
sendto - sendto 6 __libc_sendto sendto
|
||||
sethostid - sethostid 1 sethostid
|
||||
sethostname - sethostname 2 sethostname
|
||||
setsockopt - setsockopt 5 setsockopt
|
||||
|
||||
@ -1 +1 @@
|
||||
#include <sysdeps/stub/reboot.c>
|
||||
#include <sysdeps/generic/reboot.c>
|
||||
|
||||
@ -1 +1 @@
|
||||
#include <sysdeps/stub/swapon.c>
|
||||
#include <sysdeps/generic/swapon.c>
|
||||
|
||||
@ -421,7 +421,7 @@ __tzfile_compute (time_t timer, int use_localtime,
|
||||
{
|
||||
struct ttinfo *info = find_transition (timer);
|
||||
__daylight = info->isdst;
|
||||
__timezone = info->offset;
|
||||
__timezone = -info->offset;
|
||||
for (i = 0;
|
||||
i < num_types && i < sizeof (__tzname) / sizeof (__tzname[0]);
|
||||
++i)
|
||||
|
||||
@ -548,7 +548,7 @@ tz_compute (timer, tm)
|
||||
return 0;
|
||||
|
||||
__daylight = timer >= tz_rules[0].change && timer < tz_rules[1].change;
|
||||
__timezone = tz_rules[__daylight ? 1 : 0].offset;
|
||||
__timezone = -tz_rules[__daylight ? 1 : 0].offset;
|
||||
__tzname[0] = (char *) tz_rules[0].name;
|
||||
__tzname[1] = (char *) tz_rules[1].name;
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user