1
0
Fork 0
mirror of https://gitlab.com/sortix/sortix.git synced 2023-02-13 20:55:38 -05:00
sortix--sortix/libc/dirname.cpp
2013-12-17 14:30:31 +01:00

47 lines
1.5 KiB
C++

/*******************************************************************************
Copyright(C) Jonas 'Sortie' Termansen 2013.
This file is part of the Sortix C Library.
The Sortix C 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 3 of the License, or (at your
option) any later version.
The Sortix C 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 the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
dirname.cpp
Returns the directory part of a path.
*******************************************************************************/
#include <libgen.h>
#include <string.h>
char* dirname(char* path)
{
static char static_stuff[2];
if ( !path || !*path )
{
static_stuff[0] = '.';
static_stuff[1] = '\0';
return static_stuff;
}
size_t path_len = strlen(path);
while ( 2 <= path_len && path[path_len-1] == '/' )
path[--path_len] = '\0';
if ( strcmp(path, "/") == 0 )
return path;
char* last_slash = strchr(path, '/');
if ( !last_slash )
return dirname(NULL);
*last_slash = '\0';
return path;
}