def to_gname(gid):
"""
Returns the groupname of the given group ID. ID can be an int or a string. If ID is already a groupname, returns it unmodified.
"""
gname = None
# is it a string?
if is_str(gid):
# does the string contain a gig?
# YES -> convert to int and then to groupname
try:
gid = int(gid)
gname = grp.getgrgid(gid).gr_name
# NO -> it's already a valid groupname, do nothing
except ValueError:
gname = gid
# NO -> convert gid to groupname
else:
gname = grp.getgrgid(gid).gr_name
return gname
def to_uname(uid):
"""
Returns the username of the given user ID. ID can be an int or a string. If ID is already a username, returns it unmodified.
"""
uname = None
# is it a string?
if is_str(uid):
# does the string contain a UID?
# YES -> convert to int and then to username
try:
uid = int(uid)
uname = pwd.getpwuid(uid).pw_name
# NO -> it's already a valid username, do nothing
except ValueError:
uname = uid
# NO -> convert uid to username
else:
uname = pwd.getpwuid(uid).pw_name
return uname
def to_gid(gname):
"""
Returns the group ID of the given groupname. If it's already an ID, it either returns it directly
or converts it to an int if it's a string.
"""
gid = None
# is it a string?
if is_str(gname):
# does the string contain a gid?
# YES -> convert to int
try:
gid = int(gname)
# NO -> convert to UID
except ValueError:
gid = grp.getgrnam(gname).gr_gid
# NO -> it's already a valid gid, do nothing
else:
gid = gname
return gid
def to_uid(uname):
"""
Returns the user ID of the given username. If it's already an ID, it either returns it directly
or converts it to an int if it's a string.
"""
uid = None
# is it a string?
if is_str(uname):
# does the string contain a UID?
# YES -> convert to int
try:
uid = int(uname)
# NO -> convert to UID
except ValueError:
uid = pwd.getpwnam(uname).pw_uid
# NO -> it's already a valid uid, do nothing
else:
uid = uname
return uid