Copyright (c) 2000, 2002 Robert N. M. Watson
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This software was developed by Robert Watson for the TrustedBSD Project.
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$FreeBSD: releng/11.0/lib/libc/posix1e/acl_from_text.3 131504 2004-07-02 23:52:20Z ru $
.Dd January 28, 2000 .Dt ACL_FROM_TEXT 3 .Os .Sh NAME .Nm acl_from_text .Nd create an ACL from text .Sh LIBRARY .Lb libc .Sh SYNOPSIS n sys/types.h n sys/acl.h .Ft acl_t .Fn acl_from_text "const char *buf_p" .Sh DESCRIPTION The .Fn acl_from_text function converts the text form of an ACL referred to by .Va buf_p into the internal working structure for ACLs, appropriate for applying to files or manipulating.
p This function may cause memory to be allocated. The caller should free any releasable memory, when the new ACL is no longer required, by calling .Xr acl_free 3 with the .Va (void *)acl_t as an argument. .Sh IMPLEMENTATION NOTES .Fx Ns 's support for POSIX.1e interfaces and features is still under development at this time. .Sh RETURN VALUES Upon successful completion, the function shall return a pointer to the internal representation of the ACL in working storage. Otherwise, a value of .Va (acl_t)NULL shall be returned, and .Va errno shall be set to indicate the error. .Sh ERRORS If any of the following conditions occur, the .Fn acl_from_text function shall return a value of .Va (acl_t)NULL and set .Va errno to the corresponding value: l -tag -width Er t Bq Er EINVAL Argument .Va buf_p cannot be translated into an ACL. t Bq Er ENOMEM The ACL working storage requires more memory than is allowed by the hardware or system-imposed memory management constraints. .El .Sh SEE ALSO .Xr acl 3 , .Xr acl_free 3 , .Xr acl_get 3 , .Xr acl_to_text 3 , .Xr posix1e 3 .Sh STANDARDS POSIX.1e is described in IEEE POSIX.1e draft 17. Discussion of the draft continues on the cross-platform POSIX.1e implementation mailing list. To join this list, see the .Fx POSIX.1e implementation page for more information. .Sh HISTORY POSIX.1e support was introduced in .Fx 4.0 , and development continues. .Sh AUTHORS .An Robert N M Watson .Sh BUGS The .Fn acl_from_text and .Fn acl_to_text functions rely on the .Xr getpwent 3 library calls to manage username and uid mapping, as well as the .Xr getgrent 3 library calls to manage groupname and gid mapping. These calls are not thread safe, and so transitively, neither are .Fn acl_from_text and .Fn acl_to_text . These functions may also interfere with stateful calls associated with the .Fn getpwent and .Fn getgrent calls.