Mercurial > libbuf
view buf_dup.3 @ 31:57c06f7b7d01 1.0.0
misc: update README.md
author | David Demelier <markand@malikania.fr> |
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date | Mon, 28 Mar 2022 21:26:18 +0200 |
parents | dbdc17e11648 |
children | 5493466d6e56 |
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.\" .\" buf_dup.3 -- simple string buffer for C .\" .\" Copyright (c) 2019-2022 David Demelier <markand@malikania.fr> .\" .\" Permission to use, copy, modify, and/or distribute this software for any .\" purpose with or without fee is hereby granted, provided that the above .\" copyright notice and this permission notice appear in all copies. .\" .\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES .\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF .\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR .\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES .\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. .\" .Dd October 29, 2019-2022 .Dt BUF_DUP 3 .Os .\" NAME .Sh NAME .Nm buf_dup .Nd duplicate a string buffer .\" SYNOPSIS .Sh SYNOPSIS .In buf.h .Ft int .Fn buf_dup "struct buf *b" "const struct buf *src" .\" DESCRIPTION .Sh DESCRIPTION The pointer .Fa b must not contain data as it will be overriden and may be let unchanged as-is. .\" RETURN VALUE .Sh RETURN VALUE If the .Fa src buffer isn't initialized (and contains a NULL data field) the destination buffer .Fa b is unchanged but the function returns 0. .Pp Otherwise the .Fn buf_dup function returns -1 in case of error and .Va errno is set to indicate the error. .\" ERRORS .Sh ERRORS .Bl -tag -width Er .It Bq Er ENOMEM There wasn't enough memory to duplicate the buffer. .El .\" SEE ALSO .Sh SEE ALSO .Xr libbuf 3 .\" AUTHORS .Sh AUTHORS The .Nm libbuf library was written by .An David Demelier <markand@malikania.fr>