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af6f39063b
1997-10-26 18:12 Ulrich Drepper <drepper@cygnus.com> * libio/genops.c: Partial undo of last patch. * libio/stdfiles.c: Likewise. * libio/iofdopen.c: Use _IO_FILE_complete, not _IO_file_plus. * libio/iopopen.c: Likewise. * libio/iovdprintf.c: Likewise. * libio/libio.h: Remove duplicated `;'. * libio/stdio.c: Remove misleading comment. * libio/stdio.h: Declare standard streams as variables. * login/Makefile (distribute): Add README.utmpd. * login/README.utmpd: New file. Provided by Mark M. Kettenis <kettenis@phys.uva.nl>. * manual/job.texi: Document tcgetsid. * manual/pattern.texi: Document globfree. * manual/terminal.texi: Document B38400 ... B460800. * posix/confstr.c: Print "-D_FILE_OFFSET_SIZE=64" for _CS_LFS_CFLAGS. * posix/unistd.h: Add explanation of _POSIX_* constants. * posix/unists.h: Add prototypes for __pread, __pread64, __pwrite and __pwrite64. * sysdeps/generic/pread.c: Define as __pread and make pread weak alias. * sysdeps/generic/pread64.c: Likewise. * sysdeps/generic/pwrite.c: Likewise. * sysdeps/generic/pwrite64.c: Likewise. * sysdeps/posix/pread.c: Likewise. * sysdeps/posix/pwrite.c: Likewise. * sysdeps/posix/pread64.c: New file. * sysdeps/posix/pwrite64.c: Likewise. * sysdeps/unix/sysv/linux/Makefile [$(subdir)=posix] (sysdep_routines): Add s_pread64 and s_pwrite64. * sysdeps/unix/sysv/linux/pread.c: New file. * sysdeps/unix/sysv/linux/pread64.c: New file. * sysdeps/unix/sysv/linux/pwrite.c: New file. * sysdeps/unix/sysv/linux/pwrite64.c: New file. * sysdeps/unix/sysv/linux/s_pread64.c: New file. * sysdeps/unix/sysv/linux/s_pwrite64.c: New file. * sysdeps/unix/sysv/linux/syscalls.list: Add pread and pwrite. * sysdeps/unix/sysv/linux/alpha/pread64.c: New (empty) file. * sysdeps/unix/sysv/linux/alpha/pwrite64.c: New (empty) file. * sysdeps/unix/sysv/linux/sparc/sparc64/pread64.c: New (empty) file. * sysdeps/unix/sysv/linux/sparc/sparc64/pwrite64.c: New (empty) file. * sysdeps/unix/sysv/linux/alpha/syscalls.list: Add pread and pwrite with weak aliases for *64 functions. * sysdeps/unix/sysv/linux/sparc/sparc64/syscalls.list: Likewise. * string/bits/string2.h: Add casts to allow void * arguments. * sysdeps/i386/i486/bits/string.h: Define index and rindex only if __USE_BSD or __USE_XOPEN_EXTENDED. * sysdeps/unix/sysv/linux/bits/socket.h: Add SCM_RIGHTS and other SCM_* constants from kernel header. * termios/termios.h: Add prototype for tcgetsid. 1997-10-26 13:26 Thorsten Kukuk <kukuk@vt.uni-paderborn.de> * sunrpc/clnt_perr.c: Add trailing '\0' to strings. * sunrpc/get_myaddr.c: Include rpc/clnt.h for prototypes. * sunrpc/pmap_clnt.c: Use get_myaddress from header file. 1997-10-26 05:26 Ulrich Drepper <drepper@cygnus.com> * configure.in: Punt if any directory mentioned in the enable-add-on parameter does not exist. 1997-10-25 19:25 Ulrich Drepper <drepper@cygnus.com> * termios/Makefile (routines): Add tcgetsid. * termios/tcgetsid.c: New file. Provided by Mark M. Kettenis <kettenis@phys.uva.nl>. 1997-10-25 18:56 Ulrich Drepper <drepper@cygnus.com> * stdlib/stdlib.h: Remove mblen optimization. * stdlib/mblen.c: Rewrite to make sure global state is not changed. Reported by anderson@metrolink.com. 1997-10-19 21:51 Wolfram Gloger <wg@wolfram.dent.med.uni-muenchen.de> * malloc/thread-m.h [_LIBC]: Use new __libc_internal_tsd_{set,get} interface for thread-specific data. 1997-10-25 06:51 Ulrich Drepper <drepper@cygnus.com> * elf/dl-addr.c: Use braces for correct logical grouping. Patch by Wolfram Gloger <wmglo@dent.med.uni-muenchen.de>. 1997-10-18 09:15 Geoff Keating <geoffk@ozemail.com.au> * io/ftwtest-sh: Sometimes /tmp is a symlink to somewhere more convenient; that caused this test to break. * sysdeps/powerpc/dl-machine.h: Fix typo. * sysdeps/powerpc/bits/fenv.h: Don't use floating-point registers when -msoft-float is in effect, because this causes compilation to stop. * sysdeps/powerpc/bits/mathinlines.h: Likewise. * rpm/template: Add description, use RPM flags rather than the ones used to build the spec. Build in a temporary directory, not /. * elf/dl-lookup.c: Don't include _itoa.h, it's not used. * elf/dl-minimal.c: Use _itoa_word rather than _itoa. It seems that _itoa is the only routine that ld.so uses that requires something from libgcc.a on powerpc, so it would be best to avoid it in ld.so. * elf/rtld.c: Likewise. * sysdeps/generic/_strerror.c: Likewise. * stdio-common/_itoa.c: Split out digits strings. * stdio-common/itoa-digits.c: New file. * stdio-common/Makefile: Add itoa-digits. 1997-10-21 Andreas Jaeger <aj@arthur.rhein-neckar.de> * manual/filesys.texi (Scanning Directory Content): Document error case more. * dirent/scandir.c (scandir): Ignore errors from select function. Suggested by urbanw@cs.umu.se (closes PR libc/316). 1997-10-25 06:18 Ulrich Drepper <drepper@cygnus.com> * sysdeps/unix/sysv/linux/sparc/sparc32/socket.S: Corrections. Patch by Erik Troan <ewt@redhat.com>. 1997-10-25 04:00 Ulrich Drepper <drepper@cygnus.com> * sysdeps/generic/dl-cache.c (_dl_load_cache_lookup): Favour exact matching of version function if both the general (1) and glibc-specific (3) entry are present. 1997-10-22 18:47 Thorsten Kukuk <kukuk@vt.uni-paderborn.de> * sunrpc/rpc/clnt.h: Add get_myaddress prototype. * nis/libnsl.map: Fix typo. * nis/nis_call.c: Fix memory leak. 1997-10-22 19:29 Ulrich Drepper <drepper@cygnus.com> * sysdeps/generic/memcmp.c: Define __P if not defined before. Patch by Jim Meyering <meyering@eng.ascend.com>. 1997-10-21 22:09 Ulrich Drepper <drepper@cygnus.com> * sysdeps/unix/sysv/linux/sys/prctl.h: New file by Richard Gooch <rgooch@atnf.csiro.au>. 1997-10-21 21:50 Ulrich Drepper <drepper@cygnus.com> * misc/syslog.c (vsyslog): Open console with O_NOCTTY. Patch by Zack Weinberg <zack@rabi.phys.columbia.edu>. 1997-10-21 18:07 Ulrich Drepper <drepper@cygnus.com> * posix/wordexp.c: Improve handling of $... expressions. Patch by Tim Waugh <tim@cyberelk.demon.co.uk>. 1997-10-21 16:12 Ulrich Drepper <drepper@cygnus.com> * manual/string.texi: Correct return values of bcopy and bzero. Patch by Matthew Wilcox <willy@odie.barnet.ac.uk>. 1997-10-18 15:03 Philip Blundell <Philip.Blundell@pobox.com> * sysdeps/unix/sysv/linux/bits/socket.h: Correct types of some elements in struct msghdr and struct cmsghdr, to keep in step with the kernel. 1997-10-17 22:29 Ulrich Drepper <drepper@cygnus.com> * sysdeps/unix/sysv/linux/sparc/sparc32/init-first.h: Fix another bug in startup code. Patch by Eric Delaunay <delaunay@lix.polytechnique.fr>. 1997-10-16 20:17 Richard Henderson <rth@cygnus.com> * sysdeps/unix/sysv/linux/sparc/sparc32/socket.S: Dump args to the stack and give the kernel a pointer. Use the sysdep.h macros. 1997-10-17 04:07 Ulrich Drepper <drepper@cygnus.com> * sysdeps/sparc/sparc32/elf/start.S: Calculate argv correctly. Patch by Eric Delaunay <delaunay@lix.polytechnique.fr>. 1997-10-16 Andreas Jaeger <aj@arthur.rhein-neckar.de> * sysdeps/libm-ieee754/s_nextafterxf.c [!__STDC__]: Correct typo. 1997-10-16 14:50 Ulrich Drepper <drepper@cygnus.com> * manual/pattern.texi: Document globfree. 1997-10-15 21:11 Philip Blundell <Philip.Blundell@pobox.com> * sysdeps/unix/sysv/linux/net/if_packet.h: New file. * sysdeps/unix/sysv/linux/Makefile (sysdep_headers): Add net/if_packet.h. * sysdeps/unix/sysv/linux/net/if_arp.h (ARPHRD_ASH): New type, for 64Mbps ASH. (ARPHRD_ETHER): This is used for 100Mbps networks too. 1997-10-15 Andreas Jaeger <aj@arthur.rhein-neckar.de> * Makerules (install): Use full pathnames for linker script. This is to work around a limitation in `ld' while no better solution is possible. 1997-10-15 Andreas Jaeger <aj@arthur.rhein-neckar.de> * malloc/malloc.c (mmap_chunk): Put inline before static in function definition to avoid compiler warning. (malloc_extend): Likewise. * sysdeps/generic/des_impl.c: Include "des.h" to avoid warning. 1997-10-15 Andreas Jaeger <aj@arthur.rhein-neckar.de> * NEWS: Fix @gnu.ai.mit.edu -> @gnu.org. * README.template: Likewise. * db/makedb.c: Likewise. * elf/ldd.bash.in: Likewise. * elf/ldd.sh.in: Likewise. * intl/locale.alias: Likewise. * login/programs/utmpd.c: Likewise. * libio/stdfiles.c [!_IO_MTSAFE] (DEF_STDFILE): Fix parameter list. 1997-10-14 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * Rules: Remove all empty.* files. (shared-only-routines): Correct implementation. 1997-10-14 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/libm-ieee754/s_lrintl.c: Make compilable. * sysdeps/libm-ieee754/s_llrintl.c: Likewise. Optimized. 1997-10-14 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * elf/ldd.bash.in: Only prepend ./ if the file contains no slash at all. * elf/ldd.sh.in: Likewise. 1997-10-14 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/m68k/sys/ucontext.h: New file. 1997-10-13 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/m68k/fpu/s_scalbln.c: New (empty) file. * sysdeps/m68k/fpu/s_scalblnf.c: New (empty) file. * sysdeps/m68k/fpu/s_scalblnl.c: New (empty) file. * sysdeps/m68k/fpu/s_scalbn.c: Add scalbln alias. * sysdeps/m68k/fpu/s_scalbnf.c: Adapted. * sysdeps/m68k/fpu/s_scalbnl.c: Adapted. * sysdeps/m68k/fpu/s_lrint.c: Add standard skeleton stuff. * sysdeps/m68k/fpu/s_lrintf.c: New file. * sysdeps/m68k/fpu/s_lrintl.c: New file. * sysdeps/m68k/fpu/bits/mathinline.h: Add fma and scalbln. Update lrint and scalbn. (__m81_inline) [__cplusplus]: Define to __inline. * math/bits/mathcalls.h: Remove whitespace before second argument of __MATHDECL. Add note explaining this. 1997-10-13 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * manual/arith.texi (Absolute Value): Spelling fix. 1997-10-13 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * malloc/obstack.h (obstack_empty_p) [!__GNUC__]: Properly parenthesize the macro parameter. * Rules: Remove rules to magically install <subdir>.h headers.
407 lines
9.4 KiB
C
407 lines
9.4 KiB
C
/* Copyright (C) 1997 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Mark Kettenis <kettenis@phys.uva.nl>, 1997.
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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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#include <errno.h>
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#include <fcntl.h>
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#include <getopt.h>
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#include <libintl.h>
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#include <locale.h>
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#include <pwd.h>
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#include <stddef.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <signal.h>
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#include <string.h>
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#include <sys/select.h>
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#include <sys/socket.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <sys/un.h>
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#include <syslog.h>
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#include <unistd.h>
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#include "utmpd.h"
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#include "utmpd-private.h"
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#ifndef DEFAULT_USER
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#define DEFAULT_USER "daemon"
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#endif
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/* Get libc version number. */
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#include <version.h>
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#define PACKAGE _libc_intl_domainname
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/* Long options. */
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static const struct option long_options[] =
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{
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{ "debug", no_argument, NULL, 'd' },
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{ "help", no_argument, NULL, 'h' },
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{ "version", no_argument, NULL, 'V' },
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{ NULL, 0, NULL, 0}
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};
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/* The UTMP database. */
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utmp_database *utmp_db;
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/* The socket for read only requests. */
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int ro_sock = -1;
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/* The socket for read/write requests. */
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int rw_sock = -1;
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/* Prototypes for the local functions. */
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static void usage (int status) __attribute__ ((noreturn));
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static void drop_priviliges (void);
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static int make_socket (const char *name);
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static void handle_requests (void) __attribute__ ((noreturn));
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static void termination_handler (int signum);
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static int check_pid (const char *file);
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static int write_pid (const char *file);
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int
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main (int argc, char *argv[])
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{
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mode_t mask;
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int debug;
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int do_help;
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int do_version;
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int opt;
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/* Set locale via LC_ALL. */
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setlocale (LC_ALL, "");
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/* Set the text message domain. */
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textdomain (PACKAGE);
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/* Initialize local variables. */
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debug = 0;
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do_help = 0;
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do_version = 0;
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while ((opt = getopt_long (argc, argv, "dhV", long_options, NULL)) != -1)
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switch (opt)
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{
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case '\0': /* Long option. */
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break;
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case 'h':
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do_help = 1;
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break;
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case 'd':
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debug = 1;
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break;
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case 'V':
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do_version = 1;
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break;
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default:
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usage (EXIT_FAILURE);
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}
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/* Version information is reequested. */
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if (do_version)
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{
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printf ("utmpd (GNU %s) %s\n", PACKAGE, VERSION);
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printf (_("\
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Copyright (C) %s Free Software Foundation, Inc.\n\
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This is free software; see the source for copying conditions. There is NO\n\
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warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\
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"), "1997");
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printf (_("Written by %s.\n"), "Mark Kettenis");
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exit (EXIT_SUCCESS);
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}
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/* Help is requested. */
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if (do_help)
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usage (EXIT_SUCCESS);
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signal (SIGINT, termination_handler);
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signal (SIGQUIT, termination_handler);
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signal (SIGTERM, termination_handler);
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/* Check if we are already running. */
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if (check_pid (_PATH_UTMPDPID))
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error (EXIT_FAILURE, 0, _("already running"));
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/* Cleanup files created by a previous `bind'. */
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unlink (_PATH_UTMPD_RO);
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unlink (_PATH_UTMPD_RW);
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/* Open UTMP database. */
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utmp_db = open_database (_PATH_UTMP "x", _PATH_UTMP);
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if (utmp_db == NULL)
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exit (EXIT_FAILURE);
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/* Create sockets, with the right permissions. */
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mask = umask (S_IXUSR | S_IXGRP | S_IXOTH);
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ro_sock = make_socket (_PATH_UTMPD_RO);
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umask (S_IXUSR | S_IRWXG | S_IRWXO);
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rw_sock = make_socket (_PATH_UTMPD_RW);
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umask (mask);
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/* Set the sockets up to accept connections. */
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if (listen (ro_sock, MAX_CONNECTIONS) < 0
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|| listen (rw_sock, MAX_CONNECTIONS) < 0)
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error (EXIT_FAILURE, errno,
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_("cannot enable socket to accept connections"));
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/* Behave like a daemon. */
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if (!debug)
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{
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openlog ("utmpd", LOG_CONS | LOG_ODELAY, LOG_DAEMON);
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if (daemon (0, 0) < 0)
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error (EXIT_FAILURE, errno, _("cannot auto-background"));
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forked = 1;
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if (write_pid (_PATH_UTMPDPID) < 0)
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warning (errno, "%s", _PATH_UTMPDPID);
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/* Ignore job control signals. */
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signal (SIGTTOU, SIG_IGN);
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signal (SIGTTIN, SIG_IGN);
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signal (SIGTSTP, SIG_IGN);
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}
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/* Drop priviliges. */
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drop_priviliges ();
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/* Handle incoming requests. */
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handle_requests ();
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}
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/* Display usage information and exit. */
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static void
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usage (int status)
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{
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if (status != EXIT_SUCCESS)
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fprintf (stderr, _("Try `%s --help' for more information.\n"),
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program_invocation_name);
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else
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{
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printf (_("\
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Usage: %s [OPTION]...\n\
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-d, --debug do not fork and display messages on the current tty\n\
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-h, --help display this help and exit\n\
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-V, --version output version information and exit\n"),
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program_invocation_name);
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fputs (_("\
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Report bugs using the `glibcbug' script to <bugs@gnu.org>.\n"),
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stdout);
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}
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exit (status);
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}
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/* Drop priviliges. */
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static void
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drop_priviliges (void)
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{
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struct passwd *pw;
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pw = getpwnam (DEFAULT_USER);
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if (pw)
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{
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seteuid (pw->pw_uid);
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setegid (pw->pw_gid);
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}
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}
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/* Make a socket in the file namespace using the filename NAME as the
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socket's address. */
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static int
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make_socket (const char *name)
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{
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struct sockaddr_un addr;
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size_t size;
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int sock;
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/* Create the socket. */
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sock = socket (PF_UNIX, SOCK_STREAM, 0);
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if (sock < 0)
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error (EXIT_FAILURE, errno, _("cannot create socket"));
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/* Bind a name to the socket. */
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addr.sun_family = AF_UNIX;
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strcpy (addr.sun_path, name);
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/* The size of the address is the offset of the start
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of the filename, plus its length, plus one for the
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terminating null byte. */
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size = (offsetof (struct sockaddr_un, sun_path)
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+ strlen (addr.sun_path));
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if (bind (sock, (struct sockaddr *) &addr, size) < 0)
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error (EXIT_FAILURE, errno, "%s", name);
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return sock;
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}
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/* Hanlde incoming requests. */
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static
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void handle_requests (void)
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{
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client_connection *connection;
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fd_set active_read_fd_set;
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fd_set active_write_fd_set;
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fd_set read_fd_set;
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fd_set write_fd_set;
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int fd;
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/* Initialize the set of active sockets. */
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FD_ZERO (&active_read_fd_set);
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FD_ZERO (&active_write_fd_set);
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FD_SET (rw_sock, &active_read_fd_set);
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FD_SET (ro_sock, &active_read_fd_set);
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while (1)
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{
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/* Block until input arrives on one or more active sockets. */
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read_fd_set = active_read_fd_set;
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write_fd_set = active_write_fd_set;
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if (select (FD_SETSIZE, &read_fd_set, &write_fd_set, NULL, NULL) < 0)
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error (EXIT_FAILURE, errno, _("cannot get input on sockets"));
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/* Service all the sockets with input pending. */
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for (fd = 0; fd < FD_SETSIZE; fd++)
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{
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if (FD_ISSET (fd, &read_fd_set))
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{
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if (fd == ro_sock || fd == rw_sock)
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{
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int access = ((fd == rw_sock) ? (R_OK | W_OK) : R_OK);
|
|
|
|
connection = accept_connection (fd, access);
|
|
if (connection == NULL)
|
|
error (0, errno, _("cannot accept connection"));
|
|
|
|
FD_SET (connection->sock, &active_read_fd_set);
|
|
}
|
|
else
|
|
{
|
|
connection = find_connection (fd);
|
|
if (connection == NULL)
|
|
error (EXIT_FAILURE, 0, _("cannot find connection"));
|
|
|
|
if (read_data (connection) < 0)
|
|
{
|
|
close_connection (connection);
|
|
FD_CLR (fd, &active_read_fd_set);
|
|
FD_CLR (fd, &active_write_fd_set);
|
|
}
|
|
|
|
if (connection->write_ptr > connection->write_base)
|
|
FD_SET (fd, &active_write_fd_set);
|
|
}
|
|
}
|
|
if (FD_ISSET (fd, &write_fd_set) &&
|
|
fd != rw_sock && fd != ro_sock)
|
|
{
|
|
connection = find_connection (fd);
|
|
if (connection == NULL)
|
|
error (EXIT_FAILURE, 0, _("cannot find connection"));
|
|
|
|
if (write_data (connection) < 0)
|
|
{
|
|
close_connection (connection);
|
|
FD_CLR (fd, &active_read_fd_set);
|
|
FD_CLR (fd, &active_write_fd_set);
|
|
}
|
|
|
|
if (connection->write_ptr == connection->write_base)
|
|
FD_CLR (fd, &active_write_fd_set);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/* Cleanup. */
|
|
static void
|
|
termination_handler (int signum)
|
|
{
|
|
/* Close sockets. */
|
|
close (ro_sock);
|
|
close (rw_sock);
|
|
|
|
/* Restore user id. */
|
|
seteuid (getuid ());
|
|
|
|
/* Clean up the files created by `bind'. */
|
|
unlink (_PATH_UTMPD_RO);
|
|
unlink (_PATH_UTMPD_RW);
|
|
|
|
if (utmp_db)
|
|
close_database (utmp_db);
|
|
|
|
/* Clean up pid file. */
|
|
unlink (_PATH_UTMPDPID);
|
|
|
|
exit (EXIT_SUCCESS);
|
|
}
|
|
|
|
|
|
/* Returns 1 if the process in pid file FILE is running, 0 if not. */
|
|
static int
|
|
check_pid (const char *file)
|
|
{
|
|
FILE *fp;
|
|
|
|
fp = fopen (_PATH_UTMPDPID, "r");
|
|
if (fp)
|
|
{
|
|
pid_t pid;
|
|
|
|
fscanf (fp, "%d", &pid);
|
|
fclose (fp);
|
|
|
|
if (kill (pid, 0) == 0)
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Write the current process id to the file FILE. Returns 0 if
|
|
successful, -1 if not. */
|
|
static int
|
|
write_pid (const char *file)
|
|
{
|
|
FILE *fp;
|
|
|
|
fp = fopen (_PATH_UTMPDPID, "w");
|
|
if (fp == NULL)
|
|
return -1;
|
|
|
|
fprintf (fp, "%d\n", getpid ());
|
|
if (ferror (fp))
|
|
return -1;
|
|
|
|
fclose (fp);
|
|
|
|
return 0;
|
|
}
|