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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [lib/] [libc/] [imfs_creat.c] - Rev 30
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/* * IMFS_create_node() * * Routine to create a new in memory file system node. * * COPYRIGHT (c) 1989-1999. * On-Line Applications Research Corporation (OAR). * * 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: imfs_creat.c,v 1.2 2001-09-27 12:01:15 chris Exp $ */ #include <assert.h> #include <stdlib.h> #include <string.h> #include "imfs.h" #include "libio_.h" IMFS_jnode_t *IMFS_create_node( rtems_filesystem_location_info_t *parent_loc, IMFS_jnode_types_t type, char *name, mode_t mode, IMFS_types_union *info ) { IMFS_jnode_t *node; struct timeval tv; IMFS_jnode_t *parent = NULL; IMFS_fs_info_t *fs_info; char *sym_name; if ( parent_loc != NULL ) parent = parent_loc->node_access; /* * Allocate an IMFS jnode */ node = calloc( 1, sizeof( IMFS_jnode_t ) ); if ( !node ) return NULL; /* * Fill in the basic information */ node->st_nlink = 1; node->type = type; strncpy( node->name, name, IMFS_NAME_MAX ); /* * Fill in the mode and permission information for the jnode structure. */ node->st_mode = mode & ~rtems_filesystem_umask; #if defined(RTEMS_POSIX_API) node->st_uid = geteuid(); node->st_gid = getegid(); #else node->st_uid = 0; node->st_gid = 0; #endif /* * Now set all the times. */ gettimeofday( &tv, 0 ); node->stat_atime = (time_t) tv.tv_sec; node->stat_mtime = (time_t) tv.tv_sec; node->stat_ctime = (time_t) tv.tv_sec; /* * Set the type specific information */ switch (type) { case IMFS_DIRECTORY: Chain_Initialize_empty(&node->info.directory.Entries); break; case IMFS_HARD_LINK: node->info.hard_link.link_node = info->hard_link.link_node; break; case IMFS_SYM_LINK: sym_name = calloc( 1, strlen( info->sym_link.name ) + 1 ); strcpy( sym_name, info->sym_link.name ); node->info.sym_link.name = sym_name; break; case IMFS_DEVICE: node->info.device.major = info->device.major; node->info.device.minor = info->device.minor; break; case IMFS_MEMORY_FILE: node->info.file.size = 0; node->info.file.indirect = 0; node->info.file.doubly_indirect = 0; node->info.file.triply_indirect = 0; break; default: assert(0); break; } /* * If this node has a parent, then put it in that directory list. */ if ( parent ) { Chain_Append( &parent->info.directory.Entries, &node->Node ); node->Parent = parent; fs_info = parent_loc->mt_entry->fs_info; node->st_ino = ++fs_info->ino_count; } return node; }
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