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author | Joel Sherrill <joel.sherrill@OARcorp.com> | 1999-10-12 18:44:40 +0000 |
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committer | Joel Sherrill <joel.sherrill@OARcorp.com> | 1999-10-12 18:44:40 +0000 |
commit | d71fcabaa6bc42e82d83060da49abff2b41ee272 (patch) | |
tree | 0fe667b13aa15cbab7baaed510a894fa1cb9dd78 /c/src/lib/libc/readlink.c | |
parent | Changed bcopy to strncpy to stick to ANSI/ISO routines. (diff) | |
download | rtems-d71fcabaa6bc42e82d83060da49abff2b41ee272.tar.bz2 |
Added call to freenod to let each filesystem free its own internal
node used to manage file access.
Diffstat (limited to 'c/src/lib/libc/readlink.c')
-rw-r--r-- | c/src/lib/libc/readlink.c | 28 |
1 files changed, 21 insertions, 7 deletions
diff --git a/c/src/lib/libc/readlink.c b/c/src/lib/libc/readlink.c index 22de51e88f..2f7423f69e 100644 --- a/c/src/lib/libc/readlink.c +++ b/c/src/lib/libc/readlink.c @@ -23,21 +23,35 @@ int readlink( rtems_filesystem_location_info_t loc; int result; + if (!buf) + set_errno_and_return_minus_one( EFAULT ); + result = rtems_filesystem_evaluate_path( pathname, 0, &loc, FALSE ); if ( result != 0 ) return -1; - if (!buf) - set_errno_and_return_minus_one( EFAULT ); - - if ( !loc.ops->node_type ) + if ( !loc.ops->node_type ){ + if ( loc.ops->freenod ) + (*loc.ops->freenod)( &loc ); set_errno_and_return_minus_one( ENOTSUP ); + } - if ( (*loc.ops->node_type)( &loc ) != RTEMS_FILESYSTEM_SYM_LINK ) + if ( (*loc.ops->node_type)( &loc ) != RTEMS_FILESYSTEM_SYM_LINK ){ + if ( loc.ops->freenod ) + (*loc.ops->freenod)( &loc ); set_errno_and_return_minus_one( EINVAL ); + } - if ( !loc.ops->readlink ) + if ( !loc.ops->readlink ){ + if ( loc.ops->freenod ) + (*loc.ops->freenod)( &loc ); set_errno_and_return_minus_one( ENOTSUP ); + } - return (*loc.ops->readlink)( &loc, buf, bufsize ); + result = (*loc.ops->readlink)( &loc, buf, bufsize ); + + if ( loc.ops->freenod ) + (*loc.ops->freenod)( &loc ); + + return result; } |