FreeBSD 7.0 manual page repository

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acl_add_perm - add permissions to a permission set



      acl_add_perm - add permissions to a permission set


      Standard C Library (libc, -lc)


      #include <sys/types.h>
      #include <sys/acl.h>
      acl_add_perm(acl_permset_t permset_d, acl_perm_t perm);


      The acl_add_perm() function is a POSIX.1e call that adds the permission
      contained in perm to the permission set permset_d.
      Note: it is not considered an error to attempt to add permissions that
      already exist in the permission set.
      The acl_add_perm() function returns the value 0 if successful; otherwise
      the value -1 is returned and the global variable errno is set to indicate
      the error.


      The acl_add_perm() function fails if:
      [EINVAL]           Argument permset_d is not a valid descriptor for a
                         permission set within an ACL entry.  Argument perm
                         does not contain a valid acl_perm_t value.
      acl(3), acl_clear_perms(3), acl_delete_perm(3), acl_get_permset(3),
      acl_set_permset(3), posix1e(3)


      POSIX.1e is described in IEEE POSIX.1e draft 17.


      POSIX.1e support was introduced in FreeBSD 4.0.  The acl_add_perm() func‐
      tion was added in FreeBSD 5.0.


      The acl_add_perm() function was written by Chris D. Faulhaber


Based on BSD UNIX
FreeBSD is an advanced operating system for x86 compatible (including Pentium and Athlon), amd64 compatible (including Opteron, Athlon64, and EM64T), UltraSPARC, IA-64, PC-98 and ARM architectures. It is derived from BSD, the version of UNIX developed at the University of California, Berkeley. It is developed and maintained by a large team of individuals. Additional platforms are in various stages of development.