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Diffstat (limited to 'doc/legacy/solaris-related-xattrs.txt')
| -rw-r--r-- | doc/legacy/solaris-related-xattrs.txt | 44 | 
1 files changed, 0 insertions, 44 deletions
diff --git a/doc/legacy/solaris-related-xattrs.txt b/doc/legacy/solaris-related-xattrs.txt deleted file mode 100644 index fa41e29000b..00000000000 --- a/doc/legacy/solaris-related-xattrs.txt +++ /dev/null @@ -1,44 +0,0 @@ -                   Solaris Extended Attributes - -In solaris extended attributes are logically supported as files -within the filesystem.  The file system is therefore augmented -with an orthogonal namespace of file attributes. Attribute values -are accessed by file descriptors obtained through a special attribute -interface. This type of logical view of "attributes as files" allows -the leveraging of existing file system interface functionality to -support the construction, deletion and manipulation of attributes. - -But as we have tested through this functionality provided by Solaris -we have come across two major issues as written below. - -1. Symlink XATTR_NOFOLLOW not present for creating extended attributes -   directly on the symlinks like other platforms Linux,MAC-OSX,BSD etc. -   An implementation is present for O_NOFOLLOW for "openat()" call sets -   up errno ELOOP whenever encountered with a symlink and also another -   implementation AT_SYMLINK_NOFOLLOW which is not present for calls like -   "attropen(), openat()" - -   a snippet of test code which helped us understand this behaviour -   -------------------------------------- -    attrfd = attropen (path, key, -    flags|AT_SYMLINK_NOFOLLOW|O_CREAT|O_WRONLY|O_NOFOLLOW, 0777); -    if (attrfd >= 0) { -      ftruncate (attrfd, 0); -      ret = write (attrfd, value, size); -      close (attrfd); -    } else { -       fprintf (stderr, "Couldn't set extended attribute for %s (%d)\n", -       	        path, errno); -    } -    -------------------------------------- - -2. Extended attribute support for special files like device files, fifo files -   is not supported under solaris. - -Apart from these glitches almost everything regarding porting functionality -for extended attribute calls has been properly implemented in compat.c -with writing wrapper around functions over -"attropen()", "openat()", "unlinkat()" - - -  | 
