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185 lines
5.5 KiB
C
185 lines
5.5 KiB
C
/* vi: set sw=4 ts=4: */
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#include <features.h>
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#include <string.h>
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#include <stdio.h>
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#include <fcntl.h>
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#include <paths.h>
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#include <unistd.h>
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#if __GNU_LIBRARY__ < 5
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/*
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* Some systems already have updwtmp(). Some don't... This is
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* the updwtmp() implementation from uClibc, Copyright 2002 by
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* Erik Andersen <andersee@debian.org>
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*/
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extern void updwtmp(const char *wtmp_file, const struct utmp *lutmp)
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{
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int fd;
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fd = open(wtmp_file, O_APPEND | O_WRONLY, 0);
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if (fd >= 0) {
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if (lockf(fd, F_LOCK, 0)==0) {
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write(fd, (const char *) lutmp, sizeof(struct utmp));
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lockf(fd, F_ULOCK, 0);
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close(fd);
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}
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}
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}
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/* Copyright (C) 1991 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 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
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not, write to the Free Software Foundation, Inc., 675 Mass Ave,
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Cambridge, MA 02139, USA. */
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/*
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* Modified by Manuel Novoa III Mar 1, 2001
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*
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* Converted original strtok.c code of strtok to __strtok_r.
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* Cleaned up logic and reduced code size.
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*/
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char *strtok_r(char *s, const char *delim, char **save_ptr)
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{
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char *token;
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token = 0; /* Initialize to no token. */
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if (s == 0) { /* If not first time called... */
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s = *save_ptr; /* restart from where we left off. */
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}
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if (s != 0) { /* If not finished... */
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*save_ptr = 0;
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s += strspn(s, delim); /* Skip past any leading delimiters. */
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if (*s != '\0') { /* We have a token. */
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token = s;
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*save_ptr = strpbrk(token, delim); /* Find token's end. */
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if (*save_ptr != 0) {
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/* Terminate the token and make SAVE_PTR point past it. */
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*(*save_ptr)++ = '\0';
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}
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}
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}
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return token;
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}
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/* Basically getdelim() with the delimiter hard wired to '\n' */
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ssize_t getline(char **linebuf, size_t *n, FILE *file)
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{
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return (getdelim (linebuf, n, '\n', file));
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}
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/*
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* daemon implementation for uClibc
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*
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* Copyright (c) 1991, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Modified for uClibc by Erik Andersen <andersee@debian.org>
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*
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* The uClibc 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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*
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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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*
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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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*
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* Original copyright notice is retained at the end of this file.
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*/
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int daemon( int nochdir, int noclose )
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{
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int fd;
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switch (fork()) {
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case -1:
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return(-1);
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case 0:
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break;
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default:
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_exit(0);
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}
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if (setsid() == -1)
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return(-1);
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if (!nochdir)
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chdir("/");
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if (!noclose && (fd = open(_PATH_DEVNULL, O_RDWR, 0)) != -1) {
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dup2(fd, STDIN_FILENO);
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dup2(fd, STDOUT_FILENO);
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dup2(fd, STDERR_FILENO);
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if (fd > 2)
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close(fd);
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}
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return(0);
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}
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/*-
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* Copyright (c) 1990, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. <BSD Advertising Clause omitted per the July 22, 1999 licensing change
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* ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change>
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*
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#endif
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