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update from main archive 961119
Wed Nov 20 02:04:11 1996 Ulrich Drepper <drepper@cygnus.com> * sysdeps/unix/sysv/linux/sigsuspend.c: Make sigsuspend a weak alias of __sigsuspend. * grp/grp.h: Correct comment about POSIX compliance. * pwd/pwd.h: Likewise. * login/utmp.h: Update copyright and pretty-print prototypes. * sysdeps/generic/paths.h: Add _PATH_LASTLOG, _PATH_UTMP and _PATH_WTMP from utmpbits.h. * sysdeps/unix/sysv/linux/paths.h: Likewise. * sysdeps/generic/utmpbits.h: Remove here. * sysdeps/gnu/utmpbits.h: Likewise. * misc/sys/uio.h: Place __BEGIN_DECLS correctly. Pretty-print prototypes. * sysdeps/unix/sysv/linux/sparc/clone.S: New file. Taken from LinuxThreads-0.5. Tue Nov 19 13:43:07 1996 Richard Henderson <rth@tamu.edu> * inet/ether_hton.c: Include <string.h>. * inet/ether_ntoh.c: Likewise. * inet/rexec.c: Get errno, index, getpass, getlogin from headers. * misc/search.h: Fix hcreate_r argument type (unsigned -> size_t). * misc/sys/cdefs.h: Change __long_double_t definition from typedef to define. Jim Nance reports problems building XEmacs otherwise. * resolv/gethnamaddr.c: Protect h_errno redefinition. * resolv/getnetnamadr.c: Likewise. * resolv/herror.c: Likewise. * sysdeps/generic/sigset.h (__SIGSETFN): Operator ## doesn't work with -traditional. Reported by Eric Youngdale. While we're at this, don't do error checking in the __ functions. This is consistent with the sysv4 definitions and seems Right. * signal/signal.h: Don't __OPTIMIZE__ sigops to __ versions. Add prototype for __sigsuspend. * sysdeps/posix/sigblock.c: Optimize sigmask <-> sigset_t conversions for sigset_t == unsigned long. De-ansidecl-ify. Reformat copyright. * sysdeps/posix/sigpause.c: Likewise. * sysdeps/posix/sigsetmask.c: Likewise. * sysdeps/posix/sigvec.c: Likewise. * sysdeps/posix/sigintr.c: Reformat copyright. * sysdeps/posix/signal.c: Check signal number out of range since __sigismember doesn't anymore. Reformat copyright. * sysdeps/posix/sigwait.c: Use __ versions of sigfillset, sigismember, sigdelset, sigaction, and sigsuspend. * stdlib/drand48-iter.c (__drand48_iterate): Cast state fragments to the wider type before shifting. * sysdeps/alpha/bsd-_setjmp.S: Silence assembler warning "$at used without .set noat" in profiling hook. * sysdeps/alpha/bsd-setjmp.S: Likewise. * sysdeps/alpha/htonl.S: Likewise. * sysdeps/alpha/htons.S: Likewise. * sysdeps/alpha/s_copysign.S: Likewise. * sysdeps/alpha/setjmp.S: Likewise. * sysdeps/alpha/stpcpy.S: Likewise. * sysdeps/alpha/strcat.S: Likewise. * sysdeps/alpha/strcpy.S: Likewise. * sysdeps/alpha/strncat.S: Likewise. * sysdeps/unix/sysv/linux/alpha/brk.S: Likewise. * sysdeps/unix/sysv/linux/alpha/clone.S: Likewise. * sysdeps/unix/sysv/linux/alpha/ieee_get_fp_control.S: Likewise. * sysdeps/unix/sysv/linux/alpha/ieee_set_fp_control.S: Likewise. * sysdeps/unix/sysv/linux/alpha/llseek.S: Likewise. * sysdeps/unix/sysv/linux/alpha/sigsuspend.S: Likewise. Rename function to __sigsuspend and add weak alias. * sysdeps/unix/sysv/linux/alpha/syscall.S: Likewise. Add missing END. * sysdeps/alpha/w_sqrt.S: Define _ERRNO_H so <errnos.h> defines EDOM. * sysdeps/unix/execve.S: Match PSEUDO_END symbol with the symbol SYSCALL__ actually generated. * sysdeps/unix/sysv/linux/errnos.h [_LIBC_REENTRANT]: Reflexively #define __set_errno, as several imported subsystems (eg. BIND) check that the symbol is defined. * sysdeps/unix/sysv/linux/getsysstats.c: Include <alloca.h>. * sysdeps/alpha/memcpy.S: Temporarily remove until I can find a bug that manifests in GCC. Tue Nov 19 11:10:05 1996 Thomas Bushnell, n/BSG <thomas@gnu.ai.mit.edu> * sysdeps/posix/writev.c (writev): COUNT parm is now int. * sysdeps/posix/readv.c (readv): Likewise. Tue Nov 19 15:28:29 1996 Ulrich Drepper <drepper@cygnus.com> * nss/nss_dns/dns-network.c: Change return type of all functions to enum nss_status. Reported by NIIBE Yutaka. * nss/nss_dns/dns-host.c: Update copyright. Fri Nov 15 20:16:38 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * config.make.in: Remove definition of top_absdir. * configure.in: Likewise. Use $(..) instead. * Makerules (make-link): Use $(..) to find rellns-sh script. Sat Nov 16 15:52:29 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * manual/nss.texi (Name Service Switch): Fix reference to `frobnicate'. Fri Nov 15 22:08:33 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/unix/sysv/linux/Makefile (sysdep_headers): Add sys/mtio.h. Mon Nov 18 05:51:13 1996 Ulrich Drepper <drepper@cygnus.com> * sysdeps/generic/waitstatus.h (__WIFSIGNALED): Rename local variable from __stat to __status to prevent shadowing. * sunrpc/rpc/clnt.h (clntudp_create, clntudp_bufcreate): Likewise for parameter __wait. Reported by NIIBE Yutaka. Mon Nov 18 02:05:38 1996 Ulrich Drepper <drepper@cygnus.com> * misc/regexp.c: New file. Implementation of obsolete interface to regular expression matcher (required in XPG4.2). * misc/regexp.h: New file. Header for above. * misc/Makefile (headers): Add regexp.h. (routines): Add regexp.c. Update copyright. Sun Nov 17 21:50:24 1996 Andreas Jaeger <aj@arthur.pfalz.de> * stdlib/tst-strtod.c (main): Add arguments for main. * stdlib/tst-strtol.c (main): Likewise. Sun Nov 17 21:15:05 1996 Ulrich Drepper <drepper@cygnus.com> * configure.in: Substitute libc_cv_slibdir and libc_cv_sysconfdir in output files. * sysdepes/unix/sysv/linux/configure: Define libc_cv_slibdir to /lib and sysconfdir to /etc if $prefix is /usr. * config.make.in: Add slibdir, sysconfdir and BASH to be replaced. * elf/Makefile ($(objpfx)ldd): Install ldd.bash.in if $(have-bash2) is yes. * elf/ldd.bash.in: Add copyright and various cleanups. * elf/ldd.sh.in: Likewise. Implement RTLD_NEXT. * elf/dlfcn.h: Define RTLD_NEXT. * elf/dl-deps.c: Build second searchlist which contains duplicates. * elf/dl-lookup.c (_dl_lookup_symbol_skip): New function. Used for RTLD_NEXT lookup. Rewrite _dl_lookup_symbol to put common parts for both lookup functions in a separate function. * elf/dlsym.c: Handle RTLD_NEXT by calling _dl_lookup_symbol_skip. * elf/link.h (struct link_map): Add l_dupsearchlist and l_ndupsearchlist. Add prototype for _dl_lookup_symbol_skip. * sunrpc/Makefile (rpcsvc): Add rusers. * sunrpc/rpcsvc/rnusers.x: Remove. Obsolteted by rusers.x. * sunrpc/rpcsvc/rusers.x: New file. Sun Nov 17 04:24:35 1996 Ulrich Drepper <drepper@cygnus.com> * stdio-common/vfprintf.c [USE_IN_LIBIO] (buffered_vfprintf): Call __libc_lock_init for local lock. Reported by a sun <asun@zoology.washington.edu>. [!USE_IN_LIBIO] (PAD): Optimize a bit.
This commit is contained in:
Ulrich Drepper
213
misc/regexp.h
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213
misc/regexp.h
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/* Copyright (C) 1996 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
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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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#ifndef _REGEXP_H
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#define _REGEXP_H 1
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/* The contents of this header file was first standardized in X/Open
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System Interface and Headers Issue 2, originally coming from SysV.
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In issue 4, version 2, it is marked as TO BE WITDRAWN.
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This code shouldn't be used in any newly written code. It is
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included only for compatibility reasons. Use the POSIX definition
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in <regex.h> for portable applications and a reasonable interface. */
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#include <alloca.h>
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#include <regex.h>
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#include <stdlib.h>
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#include <string.h>
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/* The implementation provided here emulates the needed functionality
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by mapping to the POSIX regular expression matcher. The interface
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for the here included function is weird (this really is a harmless
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word).
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The user has to provide five macros before this header file can be
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included:
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GETC() Return the value of the next character in the regular
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expression pattern. Successive calls should return
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successive characters.
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PEEKC() Return the value of the next character in the regular
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expression pattern. Immediately successive calls to
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PEEKC() should return the same character which should
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also be the next character returned by GETC().
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UNGETC(c) Cause `c' to be returned by the next call to GETC() and
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PEEKC().
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RETURN(ptr) Used for normal exit of the `compile' function. `ptr'
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is a pointer to the character after the last character of
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the compiled regular expression.
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ERROR(val) Used for abnormal return from `compile'. `val' is the
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error number. The error codes are:
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11 Range endpoint too large.
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16 Bad number.
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25 \digit out of range.
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36 Illegal or missing delimiter.
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41 No remembered search string.
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42 \( \) imbalance.
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43 Too many \(.
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44 More tan two numbers given in \{ \}.
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45 } expected after \.
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46 First number exceeds second in \{ \}.
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49 [ ] imbalance.
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50 Regular expression overflow.
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*/
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__BEGIN_DECLS
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/* Interface variables. They contain the results of the successful
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calls to `setp' and `advance'. */
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extern char *loc1;
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extern char *loc2;
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/* The use of this variable in the `advance' function is not
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supported. */
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extern char *locs;
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#ifndef __DO_NOT_DEFINE_COMPILE
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/* Get and compile the user supplied pattern up to end of line or
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string or until EOF is seen, whatever happens first. The result is
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placed in the buffer starting at EXPBUG and delimited by ENDBUF.
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This function cannot be defined in the libc itself since it depends
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on the macros. */
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char *
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compile (char *__instring, char *__expbuf, __const char *__endbuf, int __eof)
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{
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char *__input_buffer = NULL;
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size_t __input_size = 0;
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size_t __current_size;
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int __ch;
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int __result;
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/* Align the expression buffer according to the needs for an object
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of type `regex_t'. Then check for minimum size of the buffer for
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the compiled regular expression. */
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regex_t *__expr_ptr;
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#if defined __GNUC__ && __GNUC__ >= 2
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const size_t __req = __alignof__ (regex_t *);
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#else
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/* How shall we find out? We simply guess it and can change it is
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this really proofs to be wrong. */
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const size_t __req = 8;
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#endif
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__expbuf += __req;
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__expbuf -= (__expbuf - ((char *) 0)) % __req;
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if (__endbuf < __expbuf + sizeof (regex_t))
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{
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ERROR (50);
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}
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__expr_ptr = (regex_t *) __expbuf;
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/* The remaining space in the buffer can be used for the compiled
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pattern. */
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__expr_ptr->buffer = __expbuf + sizeof (regex_t);
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__expr_ptr->allocated = __endbuf - (char *) __expr_ptr->buffer;
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while ((__ch = (GETC ())) != __eof)
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{
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if (__ch == '\0' || __ch == 'n')
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{
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UNGETC (__ch);
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break;
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}
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if (__current_size + 1 >= __input_size)
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{
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size_t __new_size = __input_size ? 2 * __input_size : 128;
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char *__new_room = __alloca (__new_size);
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/* See whether we can use the old buffer. */
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if (__new_room + __new_size == __input_buffer)
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{
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__input_size += __new_size;
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__input_buffer = memcpy (__new_room, __input_buffer,
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__current_size);
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}
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else if (__input_buffer + __input_size == __new_room)
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__input_size += __new_size;
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else
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{
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__input_size = __new_size;
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__input_buffer = memcpy (__new_room, __input_buffer,
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__current_size);
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}
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}
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__input_buffer[__current_size++] = __ch;
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}
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__input_buffer[__current_size++] = '\0';
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/* Now compile the pattern. */
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__error = regcomp (__expr_ptr, __input_buffer, REG_NEWLINE);
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if (__error != 0)
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/* Oh well, we have to translate POSIX error codes. */
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switch (__error)
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{
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case REG_BADPAT:
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case REG_ECOLLATE:
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case REG_ECTYPE:
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case REG_EESCAPE:
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case REG_BADRPT:
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case REG_EEND:
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case REG_RPAREN:
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default:
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/* There is no matching error code. */
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RETURN (36);
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case REG_ESUBREG:
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RETURN (25);
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case REG_EBRACK:
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RETURN (49);
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case REG_EPAREN:
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RETURN (42);
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case REG_EBRACE:
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RETURN (44);
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case REG_BADBR:
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RETURN (46);
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case REG_ERANGE:
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RETURN (11);
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case REG_ESPACE:
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case REG_ESIZE:
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ERROR (50);
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}
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/* Everything is ok. */
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RETURN ((char *) (__expr_ptr->buffer + __expr->used));
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}
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#endif
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/* Find the next match in STRING. The compiled regular expression is
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found in the buffer starting at EXPBUF. `loc1' will return the
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first character matched and `loc2' points to the next unmatched
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character. */
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extern int step __P ((__const char *__string, __const char *__expbuf));
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/* Match the beginning of STRING with the compiled regular expression
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in EXPBUF. If the match is successful `loc2' will contain the
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position of the first unmatched character. */
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extern int advance __P ((__const char *__string, __const char *__expbuf));
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__END_DECLS
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#endif /* regexp.h */
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