1 | /* |
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2 | * Routine for node creation in MSDOS filesystem. |
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3 | * |
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4 | * Copyright (C) 2001 OKTET Ltd., St.-Petersburg, Russia |
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5 | * Author: Eugeny S. Mints <Eugeny.Mints@oktet.ru> |
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6 | * |
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7 | * The license and distribution terms for this file may be |
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8 | * found in the file LICENSE in this distribution or at |
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9 | * http://www.OARcorp.com/rtems/license.html. |
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10 | * |
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11 | * @(#) $Id$ |
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12 | */ |
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13 | |
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14 | #if HAVE_CONFIG_H |
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15 | #include "config.h" |
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16 | #endif |
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17 | |
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18 | #include <sys/types.h> |
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19 | #include <sys/stat.h> |
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20 | #include <fcntl.h> |
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21 | #include <unistd.h> |
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22 | #include <errno.h> |
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23 | #include <stdlib.h> |
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24 | #include <rtems.h> |
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25 | |
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26 | #include <rtems/libio_.h> |
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27 | |
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28 | #include "fat.h" |
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29 | #include "fat_fat_operations.h" |
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30 | #include "fat_file.h" |
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31 | |
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32 | #include "msdos.h" |
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33 | |
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34 | /* msdos_mknod -- |
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35 | * The following function checks spelling and formats name for a new node, |
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36 | * determines type of the node to be created and creates it. |
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37 | * |
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38 | * PARAMETERS: |
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39 | * token - non-formatted name of a new node |
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40 | * mode - node type |
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41 | * dev - dev |
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42 | * pathloc - parent directory description |
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43 | * |
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44 | * RETURNS: |
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45 | * RC_OK on succes, or -1 if error occured and set errno |
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46 | * |
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47 | */ |
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48 | int |
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49 | msdos_mknod( |
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50 | const char *token, |
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51 | mode_t mode, |
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52 | dev_t dev, |
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53 | rtems_filesystem_location_info_t *pathloc |
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54 | ) |
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55 | { |
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56 | int rc = RC_OK; |
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57 | rtems_status_code sc = RTEMS_SUCCESSFUL; |
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58 | msdos_fs_info_t *fs_info = pathloc->mt_entry->fs_info; |
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59 | msdos_token_types_t type = 0; |
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60 | char new_name[ MSDOS_NAME_MAX + 1 ]; |
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61 | int len; |
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62 | |
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63 | /* check spelling and format new node name */ |
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64 | msdos_get_token(token, new_name, &len); |
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65 | |
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66 | /* |
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67 | * Figure out what type of msdos node this is. |
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68 | */ |
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69 | if (S_ISDIR(mode)) |
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70 | { |
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71 | type = MSDOS_DIRECTORY; |
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72 | } |
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73 | else if (S_ISREG(mode)) |
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74 | { |
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75 | type = MSDOS_REGULAR_FILE; |
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76 | } |
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77 | else |
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78 | set_errno_and_return_minus_one(EINVAL); |
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79 | |
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80 | sc = rtems_semaphore_obtain(fs_info->vol_sema, RTEMS_WAIT, |
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81 | MSDOS_VOLUME_SEMAPHORE_TIMEOUT); |
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82 | if (sc != RTEMS_SUCCESSFUL) |
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83 | set_errno_and_return_minus_one(EIO); |
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84 | |
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85 | /* Create an MSDOS node */ |
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86 | rc = msdos_creat_node(pathloc, type, new_name, mode); |
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87 | |
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88 | rtems_semaphore_release(fs_info->vol_sema); |
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89 | return rc; |
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90 | } |
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