/* concat3.c: concatenate three strings.

/* concat3.c: concatenate three strings.

Copyright 1992, 2008 Karl Berry.

This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.

This library 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
Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License
along with this library; if not, see <http://www.gnu.org/licenses/>. */

#include <kpathsea/config.h>

string
concat3 (const_string s1, const_string s2, const_string s3)
{
int s2l = s2 ? strlen (s2) : 0;
int s3l = s3 ? strlen (s3) : 0;
string answer
= (string) xmalloc (strlen(s1) + s2l + s3l + 1);
strcpy (answer, s1);
if (s2) strcat (answer, s2);
if (s3) strcat (answer, s3);

return answer;
}