1.\" Copyright (c) 2011 Joseph Koshy. All rights reserved. 2.\" 3.\" Redistribution and use in source and binary forms, with or without 4.\" modification, are permitted provided that the following conditions 5.\" are met: 6.\" 1. Redistributions of source code must retain the above copyright 7.\" notice, this list of conditions and the following disclaimer. 8.\" 2. Redistributions in binary form must reproduce the above copyright 9.\" notice, this list of conditions and the following disclaimer in the 10.\" documentation and/or other materials provided with the distribution. 11.\" 12.\" This software is provided by Joseph Koshy ``as is'' and 13.\" any express or implied warranties, including, but not limited to, the 14.\" implied warranties of merchantability and fitness for a particular purpose 15.\" are disclaimed. in no event shall Joseph Koshy be liable 16.\" for any direct, indirect, incidental, special, exemplary, or consequential 17.\" damages (including, but not limited to, procurement of substitute goods 18.\" or services; loss of use, data, or profits; or business interruption) 19.\" however caused and on any theory of liability, whether in contract, strict 20.\" liability, or tort (including negligence or otherwise) arising in any way 21.\" out of the use of this software, even if advised of the possibility of 22.\" such damage. 23.\" 24.\" $Id: elftc_copyfile.3 3645 2018-10-15 20:17:14Z jkoshy $ 25.\" 26.Dd December 11, 2011 27.Dt ELFTC_COPYFILE 3 28.Os 29.Sh NAME 30.Nm elftc_copyfile 31.Nd convenience function to copy data 32.Sh LIBRARY 33.Lb libelftc 34.Sh SYNOPSIS 35.In libelftc.h 36.Ft in 37.Fn elftc_copyfile "int ifd" "int ofd" 38.Sh DESCRIPTION 39The function 40.Fn elftc_copyfile 41copies the contents of the file referenced by argument 42.Ar ifd 43to the file referenced by argument 44.Ar ofd . 45.Pp 46The argument 47.Ar ifd 48should contain a file descriptor opened for reading, with its file 49offset at the beginning of the file. 50.Pp 51The argument 52.Ar ofd 53should contain a file descriptor opened for writing. 54.Sh RETURN VALUES 55.Rv -std 56.Sh ERRORS 57The function 58.Fn elftc_copyfile 59may fail with any of the errors returned by 60.Xr fstat 2 , 61.Xr mmap 2 , 62.Xr munmap 2 , 63.Xr read 2 , 64.Xr write 2 , 65or 66.Xr malloc 3 . 67.Sh SEE ALSO 68.Xr fstat 2 , 69.Xr mmap 2 , 70.Xr munmap 2 , 71.Xr read 2 , 72.Xr write 2 , 73.Xr malloc 3 74