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File indexing completed on 2025-05-11 08:24:15
0001 /* SPDX-License-Identifier: BSD-2-Clause */ 0002 0003 /** 0004 * @file 0005 * 0006 * @brief Create a Special or Ordinary File 0007 * @ingroup libcsupport 0008 */ 0009 0010 /* 0011 * COPYRIGHT (c) 1989-1999. 0012 * On-Line Applications Research Corporation (OAR). 0013 * 0014 * Redistribution and use in source and binary forms, with or without 0015 * modification, are permitted provided that the following conditions 0016 * are met: 0017 * 1. Redistributions of source code must retain the above copyright 0018 * notice, this list of conditions and the following disclaimer. 0019 * 2. Redistributions in binary form must reproduce the above copyright 0020 * notice, this list of conditions and the following disclaimer in the 0021 * documentation and/or other materials provided with the distribution. 0022 * 0023 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 0024 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 0025 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 0026 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 0027 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 0028 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 0029 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 0030 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 0031 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 0032 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 0033 * POSSIBILITY OF SUCH DAMAGE. 0034 */ 0035 0036 #ifdef HAVE_CONFIG_H 0037 #include "config.h" 0038 #endif 0039 0040 #include <sys/stat.h> 0041 0042 #include <rtems/libio_.h> 0043 0044 int rtems_filesystem_mknod( 0045 const rtems_filesystem_location_info_t *parentloc, 0046 const char *name, 0047 size_t namelen, 0048 mode_t mode, 0049 dev_t dev 0050 ) 0051 { 0052 int rv = 0; 0053 0054 mode &= ~rtems_filesystem_umask; 0055 0056 switch (mode & S_IFMT) { 0057 case S_IFBLK: 0058 case S_IFCHR: 0059 case S_IFDIR: 0060 case S_IFIFO: 0061 case S_IFREG: 0062 break; 0063 default: 0064 errno = EINVAL; 0065 rv = -1; 0066 break; 0067 } 0068 0069 if ( rv == 0 ) { 0070 const rtems_filesystem_operations_table *ops = parentloc->mt_entry->ops; 0071 0072 rv = (*ops->mknod_h)( parentloc, name, namelen, mode, dev ); 0073 } 0074 0075 return rv; 0076 } 0077 0078 /** 0079 * This routine is not defined in the POSIX 1003.1b standard but is 0080 * commonly supported on most UNIX and POSIX systems. It is the 0081 * foundation for creating file system objects. 0082 */ 0083 int mknod( const char *path, mode_t mode, dev_t dev ) 0084 { 0085 int rv = 0; 0086 rtems_filesystem_eval_path_context_t ctx; 0087 int eval_flags = RTEMS_FS_FOLLOW_LINK 0088 | RTEMS_FS_MAKE 0089 | RTEMS_FS_EXCLUSIVE 0090 | (S_ISDIR(mode) ? RTEMS_FS_ACCEPT_RESIDUAL_DELIMITERS : 0); 0091 const rtems_filesystem_location_info_t *currentloc = 0092 rtems_filesystem_eval_path_start( &ctx, path, eval_flags ); 0093 0094 rv = rtems_filesystem_mknod( 0095 currentloc, 0096 rtems_filesystem_eval_path_get_token( &ctx ), 0097 rtems_filesystem_eval_path_get_tokenlen( &ctx ), 0098 mode, 0099 dev 0100 ); 0101 0102 rtems_filesystem_eval_path_cleanup( &ctx ); 0103 0104 return rv; 0105 }
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