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acl_copy_ext(3) [redhat man page]

ACL_COPY_EXT(3) 					   BSD Library Functions Manual 					   ACL_COPY_EXT(3)

NAME
acl_copy_ext -- copy an ACL from internal to external representation LIBRARY
Linux Access Control Lists library (libacl, -lacl). SYNOPSIS
#include <sys/types.h> #include <sys/acl.h> ssize_t acl_copy_ext(void *buf_p, acl_t acl, ssize_t size); DESCRIPTION
The acl_copy_ext() function copies the ACL pointed to by acl from system-managed space to the user managed space pointed to by buf_p. The size parameter represents the size in bytes of the buffer pointed to by buf_p. The format of the ACL placed in the buffer pointed to by buf_p is a contiguous, persistent data item, the format of which is unspecified. It is the responsibility of the invoker to allocate an area large enough to hold the copied ACL. The size of the exportable, contiguous, persistent form of the ACL may be obtained by invoking the acl_size() function. Any ACL entry descriptors that refer to an entry in the ACL referenced by acl continue to refer to those entries. Any existing ACL pointers that refer to the ACL referenced by acl continue to refer to the ACL. RETURN VALUE
Upon successful completion, this function returns the number of bytes placed in the buffer pointed to by buf_p. Otherwise, a value of (ssize_t)-1 is returned and errno is set to indicate the error. ERRORS
If any of the following conditions occur, the acl_copy_ext() function returns a value of (ssize_t)-1 and sets errno to the corresponding value: [EINVAL] The size parameter is zero or negative. The argument acl is not a valid pointer to an ACL. The ACL referenced by acl contains one or more improperly formed ACL entries, or for some other reason cannot be trans- lated into the external form of an ACL. [ERANGE] The size parameter is greater than zero but smaller than the length of the contiguous, persistent form of the ACL. STANDARDS
IEEE Std 1003.1e draft 17 ("POSIX.1e", abandoned) SEE ALSO
acl_copy_int(3), acl_size(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@computer.org>. Linux ACL March 23, 2002 Linux ACL

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ACL_FROM_TEXT(3)					   BSD Library Functions Manual 					  ACL_FROM_TEXT(3)

NAME
acl_to_text -- convert an ACL to text LIBRARY
Linux Access Control Lists library (libacl, -lacl). SYNOPSIS
#include <sys/types.h> #include <sys/acl.h> char * acl_to_text(acl_t acl, ssize_t *len_p); DESCRIPTION
The acl_to_text() function translates the ACL pointed to by the argument acl into a NULL terminated character string. If the pointer len_p is not NULL, then the function returns the length of the string (not including the NULL terminator) in the location pointed to by len_p. The format of the text string returned by acl_to_text() is the long text form defined in acl(5). The ACL referred to by acl is not changed. This function allocates any memory necessary to contain the string and returns a pointer to the string. The caller should free any releasable memory, when the new string is no longer required, by calling acl_free(3) with the (void*)char returned by acl_to_text() as an argument. RETURN VALUE
On success, this function returns a pointer to the long text form of the ACL. On error, a value of (char *)NULL is returned, and errno is set appropriately. ERRORS
If any of the following conditions occur, the acl_to_text() function returns a value of (char *)NULL and sets errno to the corresponding value: [EINVAL] The argument acl is not a valid pointer to an ACL. The ACL referenced by acl contains one or more improperly formed ACL entries, or for some other reason cannot be trans- lated into a text form of an ACL. [ENOMEM] The character string to be returned requires more memory than is allowed by the hardware or system-imposed memory manage- ment constraints. STANDARDS
IEEE Std 1003.1e draft 17 ("POSIX.1e", abandoned) SEE ALSO
acl_free(3), acl_to_any_text(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>. Linux ACL March 23, 2002 Linux ACL

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