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Annotation of libaitsync/src/file.c, revision 1.3

1.1       misho       1: /*************************************************************************
                      2: * (C) 2010 AITNET ltd - Sofia/Bulgaria - <misho@aitbg.com>
                      3: *  by Michael Pounov <misho@openbsd-bg.org>
                      4: *
                      5: * $Author: misho $
1.3     ! misho       6: * $Id: file.c,v 1.2.2.2 2012/07/22 22:09:18 misho Exp $
1.1       misho       7: *
1.2       misho       8: **************************************************************************
                      9: The ELWIX and AITNET software is distributed under the following
                     10: terms:
                     11: 
                     12: All of the documentation and software included in the ELWIX and AITNET
                     13: Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org>
                     14: 
1.3     ! misho      15: Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
1.2       misho      16:        by Michael Pounov <misho@elwix.org>.  All rights reserved.
                     17: 
                     18: Redistribution and use in source and binary forms, with or without
                     19: modification, are permitted provided that the following conditions
                     20: are met:
                     21: 1. Redistributions of source code must retain the above copyright
                     22:    notice, this list of conditions and the following disclaimer.
                     23: 2. Redistributions in binary form must reproduce the above copyright
                     24:    notice, this list of conditions and the following disclaimer in the
                     25:    documentation and/or other materials provided with the distribution.
                     26: 3. All advertising materials mentioning features or use of this software
                     27:    must display the following acknowledgement:
                     28: This product includes software developed by Michael Pounov <misho@elwix.org>
                     29: ELWIX - Embedded LightWeight unIX and its contributors.
                     30: 4. Neither the name of AITNET nor the names of its contributors
                     31:    may be used to endorse or promote products derived from this software
                     32:    without specific prior written permission.
                     33: 
                     34: THIS SOFTWARE IS PROVIDED BY AITNET AND CONTRIBUTORS ``AS IS'' AND
                     35: ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     36: IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     37: ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     38: FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     39: DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     40: OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     41: HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     42: LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     43: OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     44: SUCH DAMAGE.
                     45: */
1.1       misho      46: #include "global.h"
1.2       misho      47: #include "tool.h"
1.1       misho      48: #include "file.h"
                     49: 
                     50: 
1.3     ! misho      51: inline int
        !            52: syncOpen(const char *csFile, int mode)
1.1       misho      53: {
                     54:        int f;
                     55: 
                     56:        if (!csFile || (*csFile == '-' && !csFile[1]))
                     57:                return mode;
                     58: 
                     59:        f = open(csFile, !mode ? O_RDONLY : O_WRONLY | O_CREAT | O_TRUNC, 0644);
                     60:        if (f == -1)
                     61:                SETERR;
                     62: 
                     63:        return f;
                     64: }
                     65: 
1.3     ! misho      66: inline int
        !            67: syncTemp(char * __restrict psName, int len)
1.1       misho      68: {
                     69:        char str[] = "/tmp/ansyncXXXXXX.dlt";
                     70:        int f;
                     71: 
                     72:        f = mkstemps(str, 4);
                     73:        strlcpy(psName, str, len);
                     74: 
                     75:        return f;
                     76: }
                     77: 
1.3     ! misho      78: inline void
        !            79: syncClose(int f)
1.1       misho      80: {
                     81:        if (f > 2)
                     82:                close(f);
                     83: }
                     84: 
1.3     ! misho      85: inline int
        !            86: syncEOF(int f)
1.1       misho      87: {
                     88:        off_t old;
                     89:        int ret = 0;
                     90: 
                     91:        old = lseek(f, 0, SEEK_CUR);
                     92:        ret = lseek(f, 0, SEEK_END) - old;
                     93:        if (lseek(f, old, SEEK_SET) == -1) {
                     94:                SETERR;
                     95:                return -1;
                     96:        }
                     97: 
                     98:        return !ret;
                     99: }