1 /* truncate.c: truncate too-long components in a filename.
3 Copyright 1993, 1995, 2008 Karl Berry.
5 This library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 This library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public License
16 along with this library; if not, see <http://www.gnu.org/licenses/>. */
18 #include <kpathsea/config.h>
20 #include <kpathsea/c-namemx.h>
21 #include <kpathsea/c-pathch.h>
22 #include <kpathsea/c-pathmx.h>
23 #include <kpathsea/truncate.h>
26 /* Truncate any too-long components in NAME, returning the result. It's
27 too bad this is necessary. See comments in readable.c for why. */
30 kpse_truncate_filename P1C(const_string, name)
32 unsigned c_len = 0; /* Length of current component. */
33 unsigned ret_len = 0; /* Length of constructed result. */
35 /* Allocate enough space. */
36 string ret = (string) xmalloc (strlen (name) + 1);
40 if (IS_DIR_SEP (*name) || IS_DEVICE_SEP (*name))
41 { /* At a directory delimiter, reset component length. */
44 else if (c_len > NAME_MAX)
45 { /* If past the max for a component, ignore this character. */
49 /* Copy this character. */
50 ret[ret_len++] = *name;