4.104.114.84.95
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[07a3253d] | 1 | /* |
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| 2 | * unlink() - POSIX 1003.1b - 5.5.1 - Remove an existing link |
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| 3 | * |
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| 4 | * COPYRIGHT (c) 1989-1998. |
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| 5 | * On-Line Applications Research Corporation (OAR). |
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| 6 | * Copyright assigned to U.S. Government, 1994. |
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| 7 | * |
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| 8 | * The license and distribution terms for this file may be |
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| 9 | * found in the file LICENSE in this distribution or at |
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| 10 | * http://www.OARcorp.com/rtems/license.html. |
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| 11 | * |
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| 12 | * $Id$ |
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| 13 | */ |
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| 14 | |
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| 15 | #include <errno.h> |
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| 16 | |
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| 17 | #include "libio_.h" |
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| 18 | |
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| 19 | int unlink( |
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| 20 | const char *path |
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| 21 | ) |
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| 22 | { |
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| 23 | rtems_filesystem_location_info_t loc; |
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| 24 | int result; |
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| 25 | |
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| 26 | /* |
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| 27 | * Get the node to be unlinked. |
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| 28 | */ |
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| 29 | |
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| 30 | result = rtems_filesystem_evaluate_path( path, 0, &loc, FALSE ); |
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| 31 | if ( result != 0 ) |
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| 32 | return -1; |
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| 33 | |
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| 34 | if ( !loc.ops->node_type ) |
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| 35 | set_errno_and_return_minus_one( ENOTSUP ); |
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| 36 | |
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| 37 | if ( (*loc.ops->node_type)( &loc ) == RTEMS_FILESYSTEM_DIRECTORY ) |
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| 38 | set_errno_and_return_minus_one( EISDIR ); |
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| 39 | |
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| 40 | if ( !loc.ops->unlink ) |
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| 41 | set_errno_and_return_minus_one( ENOTSUP ); |
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| 42 | |
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| 43 | return (*loc.ops->unlink)( &loc ); |
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| 44 | } |
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[d006519b] | 45 | |
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| 46 | /* |
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| 47 | * _unlink_r |
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| 48 | * |
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| 49 | * This is the Newlib dependent reentrant version of unlink(). |
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| 50 | */ |
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| 51 | |
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| 52 | #if defined(RTEMS_NEWLIB) |
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| 53 | |
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| 54 | #include <reent.h> |
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| 55 | |
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| 56 | int _unlink_r( |
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| 57 | struct _reent *ptr, |
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| 58 | const char *path |
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| 59 | ) |
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| 60 | { |
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| 61 | return unlink( path ); |
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| 62 | } |
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| 63 | #endif |
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| 64 | |
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