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authorRoland McGrath <roland@gnu.org>1996-05-29 04:48:04 +0000
committerRoland McGrath <roland@gnu.org>1996-05-29 04:48:04 +0000
commit0200214b288810fc261b0b65c32f7068fcfa9b40 (patch)
treea488a0a435ccf62b0870121b839b08de0d37a9b5 /login/login.c
parent215dbbb1508bd6b86211112dd5ddaf9bd2290690 (diff)
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Tue May 28 04:38:10 1996 Ulrich Drepper <drepper@cygnus.com>
* limits.h: Change MB_LEN_MAX to 6. A 31-bit ISO 10646 character in UTF-8 encoding has that many bytes. * locale/langinfo.h: New element _NL_CTYPE_MB_CUR_MAX. * locale/categories.def: Add description of field _NL_CTYPE_MB_CUR_MAX. * locale/Makefile (routines): Add mb_cur_max. * locale/mb_cur_max.c: New file. This function gets called when the macro MB_CUR_MAX is used. * locale/C-ctype.c: Initialize new mb_cur_max field. * locale/localeinfo.h: Change magic value because of incompatible change. * locale/programs/ld-ctype.c: Determine value of mb_cur_max according to current character set and write it out with the rest. * stdlib/stdlib.h (MB_CUR_MAX): Not constant anymore. Get value according to currently used locale for catefory LC_CTYPE by calling the function __ctype_get_mb_cur_max. Tue May 28 03:27:46 1996 Ulrich Drepper <drepper@cygnus.com> * FAQ: Fix some typos. Tell that for Linux the kernel header files are necessary. * PROJECTS: New file. List of open jobs for glibc. * Makefile (distribute): Add PROJECTS. * crypt/GNUmakefile (headers): New variable. Mention crypt.h. * crypt/crypt.h: Header for crypt functions. * elf/elf.h: Add some new constants from recent Cygnus ELF header files. * login/getutid_r.c: Test for correct type. Don't depend on ut_type and ut_id unless _HAVE_UT_TYPE and _HAVE_UT_ID resp. are defined. Make really compliant with specification. * login/getutline_r.c, login/pututline_r.c: Don't depend on ut_type and ut_id unless _HAVE_UT_TYPE and _HAVE_UT_ID resp. are defined. Make really compliant with specification. * login/setutent_r.c: Don't depend on ut_type and ut_id unless _HAVE_UT_TYPE and _HAVE_UT_ID resp. are defined. * login/login.c, login/logout.c, login/logwtmp.c: Complete rewrite. Now based on getut*/setut* functions. * stdlib/strtol.c: Undo changes of Wed May 22 01:48:54 1996. This prevented using this file in other GNU packages. * sysdeps/gnu/utmpbits.h: Define _HAVE_UT_TYPE, _HAVE_UT_ID, and _HAVE_UT_TV because struct utmp has these members. * sysdeps/libm-i387/e_exp.S: Correct exp(+-Inf) case. * utmp.h: New file. Wrapper around login/utmp.h. * elf/dl-error.c (struct catch): New type. (catch): New static variable, struct catch *. (catch_env, signalled_errstring, signalled_objname): Variables removed. (_dl_signal_error): If CATCH is non-null, set its errstring and objname members and jump to CATCH->env. If it is null, call _dl_sysdep_fatal with a standard message. * elf/rtld.c (dl_main): Explode `doit' function into dl_main's body. No longer use _dl_catch_error.
Diffstat (limited to 'login/login.c')
-rw-r--r--login/login.c148
1 files changed, 93 insertions, 55 deletions
diff --git a/login/login.c b/login/login.c
index 5b71082..f74ce41 100644
--- a/login/login.c
+++ b/login/login.c
@@ -1,63 +1,101 @@
-/*
- * Copyright (c) 1988, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#if defined(LIBC_SCCS) && !defined(lint)
-static char sccsid[] = "@(#)login.c 8.1 (Berkeley) 6/4/93";
-#endif /* LIBC_SCCS and not lint */
-
-#include <sys/types.h>
-
-#include <fcntl.h>
+/* Copyright (C) 1996 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
+
+#include <errno.h>
+#include <limits.h>
+#include <string.h>
#include <unistd.h>
-#include <stdlib.h>
#include <utmp.h>
-#include <stdio.h>
+
void
-login(ut)
- const struct utmp *ut;
+login (const struct utmp *ut)
{
- register int fd;
- int tty;
-
- tty = ttyslot();
- if (tty > 0 && (fd = open(_PATH_UTMP, O_WRONLY|O_CREAT, 0644)) >= 0) {
- (void)lseek(fd, (off_t)(tty * sizeof(struct utmp)), L_SET);
- (void)write(fd, ut, sizeof(struct utmp));
- (void)close(fd);
+ char tty[PATH_MAX + UT_LINESIZE];
+ int found_tty;
+ const char *ttyp;
+ struct utmp_data data;
+
+ /* Seek tty. */
+ found_tty = ttyname_r (STDIN_FILENO, tty, sizeof tty);
+ if (found_tty < 0)
+ found_tty = ttyname_r (STDOUT_FILENO, tty, sizeof tty);
+ if (found_tty < 0)
+ found_tty = ttyname_r (STDERR_FILENO, tty, sizeof tty);
+
+ if (found_tty >= 0)
+ {
+ /* Tell that we want to use the UTMP file. */
+ if (utmpname (_PATH_UTMP) != 0)
+ {
+ struct utmp tmp;
+ struct utmp *old;
+
+ /* Open UTMP file. */
+ setutent_r (&data);
+
+ /* We only want to insert the name of the tty without path. */
+ ttyp = basename (tty);
+
+ /* Position to record for this tty. */
+#if _HAVE_UT_TYPE - 0
+ tmp.ut_type = USER_PROCESS;
+#endif
+ strncpy (tmp.ut_line, ttyp, UT_LINESIZE);
+
+ /* Read the record. */
+ if (getutline_r (&tmp, &old, &data) >= 0 || errno == ESRCH)
+ {
+#if _HAVE_UT_TYPE - 0
+ /* We have to fake the old entry because this `login'
+ function does not fit well into the UTMP file
+ handling scheme. */
+ old->ut_type = ut->ut_type;
+#endif
+ pututline_r (ut, &data);
+ }
+
+ /* Close UTMP file. */
+ endutent_r (&data);
}
- if ((fd = open(_PATH_WTMP, O_WRONLY|O_APPEND, 0)) >= 0) {
- (void)write(fd, ut, sizeof(struct utmp));
- (void)close(fd);
+ }
+
+ /* Update the WTMP file. Here we have to add a new entry. */
+ if (utmpname (_PATH_WTMP) != 0)
+ {
+ /* Open the WTMP file. */
+ setutent_r (&data);
+
+ /* Position at end of file. */
+ data.loc_utmp = lseek (data.ut_fd, 0, SEEK_END);
+ if (data.loc_utmp != -1)
+ {
+#if _HAVE_UT_TYPE - 0
+ /* We have to fake the old entry because this `login'
+ function does not fit well into the UTMP file handling
+ scheme. */
+ data.ubuf.ut_type = ut->ut_type;
+#endif
+ pututline_r (ut, &data);
}
+
+ /* Close WTMP file. */
+ endutent_r (&data);
+ }
}