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/**
* slibc — Yet another C library
* Copyright © 2015, 2016 Mattias Andrée (maandree@member.fsf.org)
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
#include <string.h>
#include <stddef.h>
# pragma GCC diagnostic ignored "-Wdiscarded-qualifiers"
/**
* Get the basename of a filename.
*
* This is a GNU extension, include <libgen.h>
* to override it with the XPG-compliant implementation.
*
* @param filename The filename.
* @return The basename, it is either a substring
* of `filename` or, if `filename` is `NULL`
* or is empty, a statically allocationed string,
* so it must not freed or edited.
*
* @since Always.
*/
char* __gnu_basename(const char* filename)
{
char* r = filename;
char last = '/';
if (filename == NULL)
return ".";
while (*filename)
{
if ((*filename != '/') && (last == '/'))
r = filename;
last = *filename++;
}
return r;
}
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