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28 .\" $FreeBSD: src/lib/libc/posix1e/acl_dup.3,v 1.12 2002/12/29 20:52:42 rwatson Exp $

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30 .Dd January 28, 2000

31 .Dt ACL_DUP 3

32 .Os

33 .Sh NAME

34 .Nm acl_dup

35 .Nd duplicate an ACL

36 .Sh LIBRARY

37 .Lb libc

38 .Sh SYNOPSIS

39 .In sys/types.h

40 .In sys/acl.h

41 .Ft acl_t

42 .Fn acl_dup "acl_t acl"

43 .Sh DESCRIPTION

44 The

45 .Fn acl_dup

46 function returns a pointer to a copy of the ACL pointed to by the argument

47 .Va acl .

48 .Pp

49 This function may cause memory to be allocated. The caller should free any

50 releasable memory, when the new ACL is no longer required, by calling

51 .Xr acl_free 3

52 with the

53 .Va (void*)acl_t

54 as an argument.

55 .Pp

56 Any existing ACL pointers that refer to the ACL referred to by

57 .Va acl

58 shall continue to refer to the ACL.

59 .Sh RETURN VALUES

60 Upon successful completion, this function shall return a pointer to the

61 duplicate ACL. Otherwise, a value of

62 .Va (acl_t)NULL

63 shall be returned, and

64 .Va errno

65 shall be set to indicate the error.

66 .Sh ERRORS

67 If any of the following conditions occur, the

68 .Fn acl_init

69 function shall return a value of

70 .Va (acl_t)NULL

71 and set

72 .Va errno

73 to the corresponding value:

74 .Bl -tag -width Er

75 .It Bq Er EINVAL

76 Argument

77 .Va acl

78 does not point to a valid ACL.

79 .It Bq Er ENOMEM

80 The

81 .Va acl_t

82 to be returned requires more memory than is allowed by the hardware or

83 system-imposed memory management constraints.

84 .El

85 .Sh SEE ALSO

86 .Xr acl 3 ,

87 .Xr acl_free 3 ,

88 .Xr acl_get 3 ,

89 .Xr posix1e 3

90 .Sh STANDARDS

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

92 .Sh AUTHORS

93 .An Michael Smith

94 .An Robert N M Watson