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Diffstat (limited to '')
-rw-r--r-- | c/src/libfs/src/imfs/imfs_getchild.c | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/c/src/libfs/src/imfs/imfs_getchild.c b/c/src/libfs/src/imfs/imfs_getchild.c new file mode 100644 index 0000000000..3f37738ab4 --- /dev/null +++ b/c/src/libfs/src/imfs/imfs_getchild.c @@ -0,0 +1,68 @@ +/* + * IMFS_find_match_in_dir() + * + * This routine returns the child name in the given directory. + * + * COPYRIGHT (c) 1989-1998. + * On-Line Applications Research Corporation (OAR). + * Copyright assigned to U.S. Government, 1994. + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.OARcorp.com/rtems/license.html. + * + * $Id$ + */ + +#include <errno.h> +#include <assert.h> +#include "imfs.h" + +static char dotname[2] = "."; +static char dotdotname[2] = ".."; + +IMFS_jnode_t *IMFS_find_match_in_dir( + IMFS_jnode_t *directory, + char *name +) +{ + Chain_Node *the_node; + Chain_Control *the_chain; + IMFS_jnode_t *the_jnode; + + /* + * Check for fatal errors + */ + + assert( directory ); + if ( !name ) + return 0; + + assert( name ); + if ( !directory ) + return 0; + + /* + * Check for "." and ".." + */ + + if ( !strcmp( name, dotname ) ) + return directory; + + if ( !strcmp( name, dotdotname ) ) + return directory->Parent; + + the_chain = &directory->info.directory.Entries; + + for ( the_node = the_chain->first; + !_Chain_Is_tail( the_chain, the_node ); + the_node = the_node->next ) { + + the_jnode = (IMFS_jnode_t *) the_node; + + if ( !strcmp( name, the_jnode->name ) ) + return the_jnode; + } + + return 0; +} |