4.104.114.84.95
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1 | /* |
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2 | * mknod() |
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3 | * |
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4 | * This routine is not defined in the POSIX 1003.1b standard but is |
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5 | * commonly supported on most UNIX and POSIX systems. It is the |
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6 | * foundation for creating file system objects. |
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7 | * |
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8 | * COPYRIGHT (c) 1989-1999. |
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9 | * On-Line Applications Research Corporation (OAR). |
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10 | * |
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11 | * The license and distribution terms for this file may be |
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12 | * found in the file LICENSE in this distribution or at |
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13 | * http://www.OARcorp.com/rtems/license.html. |
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14 | * |
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15 | * $Id$ |
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16 | */ |
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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 | |
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25 | #include "libio_.h" |
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26 | |
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27 | int mknod( |
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28 | const char *pathname, |
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29 | mode_t mode, |
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30 | dev_t dev |
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31 | ) |
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32 | { |
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33 | rtems_filesystem_location_info_t temp_loc; |
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34 | int i; |
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35 | const char *name_start; |
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36 | int result; |
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37 | |
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38 | if ( !(mode & (S_IFREG|S_IFCHR|S_IFBLK|S_IFIFO) ) ) |
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39 | set_errno_and_return_minus_one( EINVAL ); |
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40 | |
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41 | if ( S_ISFIFO(mode) ) |
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42 | set_errno_and_return_minus_one( ENOTSUP ); |
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43 | |
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44 | rtems_filesystem_get_start_loc( pathname, &i, &temp_loc ); |
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45 | |
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46 | result = (*temp_loc.ops->evalformake)( |
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47 | &pathname[i], |
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48 | &temp_loc, |
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49 | &name_start |
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50 | ); |
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51 | if ( result != 0 ) |
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52 | return -1; |
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53 | |
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54 | if ( !temp_loc.ops->mknod ) { |
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55 | rtems_filesystem_freenode( &temp_loc ); |
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56 | set_errno_and_return_minus_one( ENOTSUP ); |
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57 | } |
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58 | |
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59 | result = (*temp_loc.ops->mknod)( name_start, mode, dev, &temp_loc ); |
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60 | |
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61 | rtems_filesystem_freenode( &temp_loc ); |
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62 | |
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63 | return result; |
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64 | } |
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