sys_fgetxattr [fs/xattr.c]
Retrieves an extended attribute value. Extended attributes are name:value pairs associated with inodes (files, directories, symlinks, etc). They are extensions to the normal attributes which are associated with all inodes in the system (i.e. the sys_stat data). This system call is identical to sys_getxattr except that an open file descriptor (as returned by sys_open) is interrogated in place of path. Arguments
eax | 231
ebx | An open file descriptor.
ecx | Pointer to a null-terminated string that specifies the name. The name attribute includes a namespace prefix; there may be several, disjoint namespaces associated with an individual inode.
edx | Pointer to a buffer which will receive the value data.
esi | Size of the buffer pointed by edx. If this value is 0, then the current size of the named extended attribute will be returned without actually filling the buffer.
Return values If the system call succeeds the return value is a positive number indicating the size of the extended attribute value. If the system call fails the return value is one of the following errno values:
`-ENOATTR` | `The named attribute does not exist, or the process has no access to this attribute.`
`-ERANGE` | `Size of the buffer is too small to hold the result.`
`-ENOTSUP` | `Extended attributes are not supported by the filesystem, or are disabled.`
`-EBADF` | `File descriptor specified by ebx is invalid.`
`-ENOMEM` | `Out of memory (i.e. kernel memory).`
Remarks n/a Compatibility n/a