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5a82c74822
Also, change sources.redhat.com to sourceware.org. This patch was automatically generated by running the following shell script, which uses GNU sed, and which avoids modifying files imported from upstream: sed -ri ' s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g ' \ $(find $(git ls-files) -prune -type f \ ! -name '*.po' \ ! -name 'ChangeLog*' \ ! -path COPYING ! -path COPYING.LIB \ ! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \ ! -path manual/texinfo.tex ! -path scripts/config.guess \ ! -path scripts/config.sub ! -path scripts/install-sh \ ! -path scripts/mkinstalldirs ! -path scripts/move-if-change \ ! -path INSTALL ! -path locale/programs/charmap-kw.h \ ! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \ ! '(' -name configure \ -execdir test -f configure.ac -o -f configure.in ';' ')' \ ! '(' -name preconfigure \ -execdir test -f preconfigure.ac ';' ')' \ -print) and then by running 'make dist-prepare' to regenerate files built from the altered files, and then executing the following to cleanup: chmod a+x sysdeps/unix/sysv/linux/riscv/configure # Omit irrelevant whitespace and comment-only changes, # perhaps from a slightly-different Autoconf version. git checkout -f \ sysdeps/csky/configure \ sysdeps/hppa/configure \ sysdeps/riscv/configure \ sysdeps/unix/sysv/linux/csky/configure # Omit changes that caused a pre-commit check to fail like this: # remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines git checkout -f \ sysdeps/powerpc/powerpc64/ppc-mcount.S \ sysdeps/unix/sysv/linux/s390/s390-64/syscall.S # Omit change that caused a pre-commit check to fail like this: # remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
82 lines
2.4 KiB
C
82 lines
2.4 KiB
C
/* Copyright (C) 1991-2019 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the 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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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include <unistd.h>
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#include <string.h>
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#include <stdio.h>
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#include <limits.h>
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#include <fcntl.h>
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#include <utmp.h>
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static char name[UT_NAMESIZE + 1];
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/* Return the login name of the user, or NULL if it can't be determined.
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The returned pointer, if not NULL, is good only until the next call. */
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#ifdef STATIC
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STATIC
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#endif
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char *
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getlogin (void)
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{
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char tty_pathname[2 + 2 * NAME_MAX];
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char *real_tty_path = tty_pathname;
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int err;
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char *result = NULL;
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struct utmp *ut, line, buffer;
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/* Get name of tty connected to fd 0. Return NULL if not a tty or
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if fd 0 isn't open. Note that a lot of documentation says that
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getlogin() is based on the controlling terminal---what they
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really mean is "the terminal connected to standard input". The
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getlogin() implementation of DEC Unix, SunOS, Solaris, HP-UX all
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return NULL if fd 0 has been closed, so this is the compatible
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thing to do. Note that ttyname(open("/dev/tty")) on those
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systems returns /dev/tty, so that is not a possible solution for
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getlogin(). */
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err = __ttyname_r (0, real_tty_path, sizeof (tty_pathname));
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if (err != 0)
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{
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__set_errno (err);
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return NULL;
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}
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real_tty_path += 5; /* Remove "/dev/". */
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__setutent ();
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strncpy (line.ut_line, real_tty_path, sizeof line.ut_line);
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if (__getutline_r (&line, &buffer, &ut) < 0)
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{
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if (errno == ESRCH)
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/* The caller expects ENOENT if nothing is found. */
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__set_errno (ENOENT);
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result = NULL;
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}
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else
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{
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strncpy (name, ut->ut_user, UT_NAMESIZE);
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name[UT_NAMESIZE] = '\0';
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result = name;
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}
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__endutent ();
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return result;
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}
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