mirror of
https://git.code.sf.net/p/fuse-emulator/fuse
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116 lines
3.0 KiB
C
116 lines
3.0 KiB
C
/* paths.c: Path-related compatibility routines
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Copyright (c) 1999-2012 Philip Kendall
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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Author contact information:
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E-mail: philip-fuse@shadowmagic.org.uk
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*/
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#include <config.h>
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#ifdef HAVE_LIBGEN_H
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#include <libgen.h>
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#endif /* #ifdef HAVE_LIBGEN_H */
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#include <stdlib.h>
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#include <string.h>
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#include "compat.h"
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#include "fuse.h"
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#include "ui/ui.h"
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void get_relative_directory( char *buffer, size_t bufsize );
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const char*
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compat_get_temp_path( void )
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{
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const char *dir;
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/* Use TMPDIR if specified, if not /tmp */
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dir = getenv( "TMPDIR" ); if( dir ) return dir;
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return "/tmp";
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}
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const char*
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compat_get_config_path( void )
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{
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const char *dir;
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dir = getenv( "HOME" ); if( dir ) return dir;
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return ".";
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}
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int
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compat_is_absolute_path( const char *path )
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{
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return path[0] == '/';
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}
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int
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compat_get_next_path( path_context *ctx )
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{
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char buffer[ PATH_MAX ];
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const char *path_segment, *path2;
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switch( (ctx->state)++ ) {
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/* First look relative to the current directory */
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case 0:
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strncpy( ctx->path, ".", PATH_MAX );
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return 1;
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/* Then relative to the Fuse executable */
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case 1:
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switch( ctx->type ) {
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case UTILS_AUXILIARY_LIB: path_segment = "lib"; break;
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case UTILS_AUXILIARY_ROM: path_segment = "roms"; break;
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case UTILS_AUXILIARY_WIDGET: path_segment = "ui/widget"; break;
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case UTILS_AUXILIARY_GTK: path_segment = "ui/gtk"; break;
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default:
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ui_error( UI_ERROR_ERROR, "unknown auxiliary file type %d", ctx->type );
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return 0;
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}
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if( compat_is_absolute_path( fuse_progname ) ) {
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strncpy( buffer, fuse_progname, PATH_MAX );
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buffer[ PATH_MAX - 1 ] = '\0';
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} else {
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get_relative_directory( buffer, PATH_MAX );
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}
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path2 = dirname( buffer );
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snprintf( ctx->path, PATH_MAX, "%s" FUSE_DIR_SEP_STR "%s", path2,
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path_segment );
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return 1;
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/* Then where we may have installed the data files */
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case 2:
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#ifndef ROMSDIR
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path2 = FUSEDATADIR;
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#else /* #ifndef ROMSDIR */
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path2 = ctx->type == UTILS_AUXILIARY_ROM ? ROMSDIR : FUSEDATADIR;
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#endif /* #ifndef ROMSDIR */
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strncpy( ctx->path, path2, PATH_MAX ); buffer[ PATH_MAX - 1 ] = '\0';
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return 1;
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case 3: return 0;
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}
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ui_error( UI_ERROR_ERROR, "unknown path_context state %d", ctx->state );
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fuse_abort();
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}
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