Provided by: libacl1-dev_2.2.42-1ubuntu1_i386 bug

NAME

      acl_set_qualifier - set the qualifier of an ACL entry

LIBRARY

      Linux Access Control Lists library (libacl, -lacl).

SYNOPSIS

      #include <sys/types.h>
      #include <sys/acl.h>
 
      int
      acl_set_qualifier(acl_entry_t entry_d, const void *qualifier_p);

DESCRIPTION

      The acl_set_qualifier() function sets the qualifier of the ACL entry
      indicated by the argument entry_d to the value referred to by the argu‐
      ment qualifier_p.  If the value of the tag type in the ACL entry referred
      to by entry_d is ACL_USER, then the value referred to by qualifier_p
      shall be of type uid_t.  If the value of the tag type in the ACL entry
      referred to by entry_d is ACL_GROUP, then the value referred to by
      qualifier_p shall be of type gid_t.  If the value of the tag type in the
      ACL entry referred to by entry_d is a tag type for which a qualifier is
      not supported, acl_set_qualifier() returns an error.
 
      Any ACL entry descriptors that refer to the entry referred to by entry_d
      continue to refer to that entry. This function may cause memory to be
      allocated. The caller should free any releasable memory, when the ACL is
      no longer required, by calling acl_free() with a pointer to the ACL as
      argument.
      The acl_set_qualifier() function returns the value 0 if successful; oth‐
      erwise the value -1 is returned and the global variable errno is set to
      indicate the error.

ERRORS

      If any of the following conditions occur, the acl_set_qualifier() func‐
      tion returns -1 and sets errno to the corresponding value:
 
      [EINVAL]           The argument entry_d is not a valid descriptor for an
                         ACL entry.
 
                         The value of the tag type in the ACL entry referenced
                         by the argument entry_d is neither ACL_USER nor
                         ACL_GROUP.
 
                         The value pointed to by the argument qualifier_p is
                         not valid.
 
      [ENOMEM]           The acl_set_qualifier() function is unable to allocate
                         the memory required for the ACL qualifier.

STANDARDS

      IEEE Std 1003.1e draft 17 (“POSIX.1e”, abandoned)
      acl_create_entry(3), acl_free(3), acl_get_permset(3),
      acl_get_qualifier(3), acl_get_tag_type(3), acl_set_entry(3),
      acl_set_permset(3), acl_set_tag_type(3), acl(5)

AUTHOR

      Derived from the FreeBSD manual pages written by Robert N M Watson
      〈rwatson@FreeBSD.org〉, and adapted for Linux by Andreas Gruenbacher
      〈a.gruenbacher@bestbits.at〉.