4.104.114.84.95
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1 | /* |
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2 | * IMFS_mknod |
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3 | * |
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4 | * Routine to create a node in the IMFS file system. |
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5 | * |
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6 | * COPYRIGHT (c) 1989-1999. |
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7 | * On-Line Applications Research Corporation (OAR). |
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8 | * |
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9 | * The license and distribution terms for this file may be |
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10 | * found in the file LICENSE in this distribution or at |
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11 | * http://www.OARcorp.com/rtems/license.html. |
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12 | * |
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13 | * $Id$ |
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14 | */ |
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15 | |
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16 | #include <sys/types.h> |
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17 | #include <sys/stat.h> |
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18 | #include <fcntl.h> |
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19 | #include <unistd.h> |
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20 | #include <errno.h> |
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21 | #include <stdlib.h> |
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22 | |
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23 | #include "imfs.h" |
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24 | #include "libio_.h" |
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25 | |
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26 | int IMFS_mknod( |
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27 | const char *token, /* IN */ |
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28 | mode_t mode, /* IN */ |
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29 | dev_t dev, /* IN */ |
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30 | rtems_filesystem_location_info_t *pathloc /* IN/OUT */ |
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31 | ) |
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32 | { |
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33 | IMFS_token_types type = 0; |
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34 | IMFS_jnode_t *new_node; |
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35 | int result; |
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36 | char new_name[ IMFS_NAME_MAX + 1 ]; |
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37 | IMFS_types_union info; |
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38 | |
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39 | IMFS_get_token( token, new_name, &result ); |
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40 | |
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41 | /* |
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42 | * Figure out what type of IMFS node this is. |
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43 | */ |
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44 | |
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45 | if ( S_ISDIR(mode) ) |
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46 | type = IMFS_DIRECTORY; |
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47 | else if ( S_ISREG(mode) ) |
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48 | type = IMFS_MEMORY_FILE; |
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49 | else if ( S_ISBLK(mode) || S_ISCHR(mode) ) { |
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50 | type = IMFS_DEVICE; |
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51 | rtems_filesystem_split_dev_t( dev, info.device.major, info.device.minor ); |
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52 | } else { |
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53 | set_errno_and_return_minus_one( EINVAL ); |
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54 | } |
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55 | |
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56 | /* |
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57 | * Allocate and fill in an IMFS jnode |
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58 | */ |
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59 | |
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60 | new_node = IMFS_create_node( |
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61 | pathloc, |
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62 | type, |
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63 | new_name, |
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64 | mode, |
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65 | &info |
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66 | ); |
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67 | |
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68 | if ( !new_node ) |
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69 | set_errno_and_return_minus_one( ENOMEM ); |
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70 | |
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71 | return 0; |
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72 | } |
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73 | |
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