check if file is readable by others Post: 302502473

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acl_add_perm

ACL_ADD_PERM(3) 					   BSD Library Functions Manual 					   ACL_ADD_PERM(3)

NAME

     acl_add_perm -- add permissions to a permission set

LIBRARY

     Standard C Library (libc, -lc)

SYNOPSIS

     #include <sys/types.h>
     #include <sys/acl.h>

     int
     acl_add_perm(acl_permset_t permset_d, acl_perm_t perm);

DESCRIPTION

     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.

RETURN VALUES

     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.

ERRORS

     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.

SEE ALSO

     acl(3), acl_clear_perms(3), acl_delete_perm(3), acl_get_permset(3), acl_set_permset(3), posix1e(3)

STANDARDS

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

AUTHORS

     Michael Smith
     Chris D Fulhaber

BSD
								  March 10, 2001							       BSD

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Regarding Readable check for all the files in the folder

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