NAME
strmode - convert inode status information into a symbolic string

SYNOPSIS
#include <string.h>

void strmode(mode, bp)
mode_t mode;
char *bp;

DESCRIPTION
The strmode function converts a file mode (the type and permission
information associated with an inode, see stat(2)) into a symbolic
string which is stored in the location referenced by bp. This
stored string is eleven characters in length plus a trailing NULL.

The first character is the inode type, and will be one of the
following:

- regular file
b block special
c character special
d directory
l symbolic link
p fifo
s socket
? unknown inode type

The next nine characters encode three sets of permissions, in three
characters each. The first three characters are the permissions
for the owner of the file, the second three for the group the file
belongs to, and the third for the "other", or default, set of
users.

Permission checking is done as specifically as possible. If read
permission is denied to the owner of a file in the first set of
permssions, the owner of the file will not be able to read the
file. This is true even if the owner is in the file’s group and
the group permissions allow reading or the "other" permissions
allow reading.

If the first character of the three character set is an "r", the
file is readable for that set of users; if a dash "-", it is not
readable.

If the second character of the three character set is a "w", the
file is writable for that set of users; if a dash "-", it is not
writable.

The third character is the first of the following characters that
apply:

S If the character is part of the owner permissions and the file
is not executable or the directory is not searchable, by the
owner, and the set-user-id bit is set.

S If the character is part of the group permissions and the file
is not executable or the directory is not searchable, by the
group, and the set-group-id bit is set.

T If the character is part of the other permissions and the file
is not executable or the directory is not searchable, by
others, and the "sticky" (S_ISVTX) bit is set.

s If the character is part of the owner permissions and the file
is executable or the directory searchable, by the owner, and
the set-user-id bit is set.

s If the character is part of the group permissions and the file
is executable or the directory searchable, by the group, and
the set-group-id bit is set.

t If the character is part of the other permissions and the file
is executable or the directory searchable, by others, and the
"sticky" (S_ISVTX) bit is set.

x The file is executable or the directory is searchable. None
of the above apply.

The last character is a plus sign "+" if any there are any
alternate or additional access control methods associated with the
inode, otherwise it will be a space.

RETURN VALUES
The strmode function always returns 0.

SEE ALSO
chmod(1), find(1), stat(2), getmode(3), setmode(3)

HISTORY
The strmode function is currently under development.