NetBSD/gnu/libexec/uucp/common_sources/copy.c

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/* copy.c
Copy one file to another for the UUCP package.
Copyright (C) 1991, 1992 Ian Lance Taylor
This file is part of the Taylor UUCP package.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
This program 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
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
The author of the program may be contacted at ian@airs.com or
c/o Cygnus Support, Building 200, 1 Kendall Square, Cambridge, MA 02139.
*/
#include "uucp.h"
#if USE_RCS_ID
const char copy_rcsid[] = "$Id: copy.c,v 1.2 1994/10/24 22:17:13 jtc Exp $";
#endif
#include "uudefs.h"
#include "system.h"
#include "sysdep.h"
#include <stdio.h>
#include <errno.h>
/* Copy one file to another. */
#if USE_STDIO
boolean
fcopy_file (zfrom, zto, fpublic, fmkdirs)
const char *zfrom;
const char *zto;
boolean fpublic;
boolean fmkdirs;
{
FILE *efrom;
boolean fret;
efrom = fopen (zfrom, BINREAD);
if (efrom == NULL)
{
ulog (LOG_ERROR, "fopen (%s): %s", zfrom, strerror (errno));
return FALSE;
}
fret = fcopy_open_file (efrom, zto, fpublic, fmkdirs);
(void) fclose (efrom);
return fret;
}
boolean
fcopy_open_file (efrom, zto, fpublic, fmkdirs)
FILE *efrom;
const char *zto;
boolean fpublic;
boolean fmkdirs;
{
FILE *eto;
char ab[8192];
int c;
eto = esysdep_fopen (zto, fpublic, FALSE, fmkdirs);
if (eto == NULL)
return FALSE;
while ((c = fread (ab, sizeof (char), sizeof ab, efrom)) != 0)
{
if (fwrite (ab, sizeof (char), (size_t) c, eto) != c)
{
ulog (LOG_ERROR, "fwrite: %s", strerror (errno));
(void) fclose (eto);
(void) remove (zto);
return FALSE;
}
}
if (fclose (eto) != 0)
{
ulog (LOG_ERROR, "fclose: %s", strerror (errno));
(void) remove (zto);
return FALSE;
}
return TRUE;
}
#else /* ! USE_STDIO */
#if HAVE_FCNTL_H
#include <fcntl.h>
#else
#if HAVE_SYS_FILE_H
#include <sys/file.h>
#endif
#endif
#ifndef O_RDONLY
#define O_RDONLY 0
#define O_WRONLY 1
#define O_RDWR 2
#endif
#ifndef O_NOCTTY
#define O_NOCTTY 0
#endif
boolean
fcopy_file (zfrom, zto, fpublic, fmkdirs)
const char *zfrom;
const char *zto;
boolean fpublic;
boolean fmkdirs;
{
int ofrom;
boolean fret;
ofrom = open (zfrom, O_RDONLY | O_NOCTTY, 0);
if (ofrom < 0)
{
ulog (LOG_ERROR, "open (%s): %s", zfrom, strerror (errno));
return FALSE;
}
fret = fcopy_open_file (ofrom, zto, fpublic, fmkdirs);
(void) close (ofrom);
return fret;
}
boolean
fcopy_open_file (ofrom, zto, fpublic, fmkdirs)
int ofrom;
const char *zto;
boolean fpublic;
boolean fmkdirs;
{
int oto;
char ab[8192];
int c;
/* These file mode arguments are from the UNIX version of sysdep.h;
each system dependent header file will need their own
definitions. */
oto = creat (zto, fpublic ? IPUBLIC_FILE_MODE : IPRIVATE_FILE_MODE);
if (oto < 0)
{
if (errno == ENOENT && fmkdirs)
{
if (! fsysdep_make_dirs (zto, fpublic))
return FALSE;
oto = creat (zto,
fpublic ? IPUBLIC_FILE_MODE : IPRIVATE_FILE_MODE);
}
if (oto < 0)
{
ulog (LOG_ERROR, "open (%s): %s", zto, strerror (errno));
return FALSE;
}
}
while ((c = read (ofrom, ab, sizeof ab)) > 0)
{
if (write (oto, ab, (size_t) c) != c)
{
ulog (LOG_ERROR, "write: %s", strerror (errno));
(void) close (oto);
(void) remove (zto);
return FALSE;
}
}
if (close (oto) < 0)
{
ulog (LOG_ERROR, "close: %s", strerror (errno));
(void) remove (zto);
return FALSE;
}
if (c < 0)
{
ulog (LOG_ERROR, "read: %s", strerror (errno));
(void) remove (zto);
return FALSE;
}
return TRUE;
}
#endif /* ! USE_STDIO */