PWCACHE(3) BSD Library Functions Manual PWCACHE(3)

NAME
     ppwwccaacchhee - cache password and group entries

LLIIBBRRAARRYY
     Standard C Library (libc, -lc)

SYNOPSIS
     ##iinncclluuddee <>

     char *
     uusseerrffrroommuuiidd(uidt uid, int nouser);

     ##iinncclluuddee <>

     char *
     ggrroouuppffrroommggiidd(gidt gid, int nogroup);

DESCRIPTION
     The uusseerrffrroommuuiidd() function returns the user name associated with the
     argument uid.  The user name is cached so that multiple calls with the
     same uid do not require additional calls to getpwuid(3).  If there is no
     user associated with the uid, a pointer is returned to a string represen-
     tation of the uid, unless the argument nouser is non-zero, in which case
     a NULL pointer is returned.

     The ggrroouuppffrroommggiidd() function returns the group name associated with the
     argument gid.  The group name is cached so that multiple calls with the
     same gid do not require additional calls to getgrgid(3).  If there is no
     group associated with the gid, a pointer is returned to a string repre-
     sentation of the gid, unless the argument nogroup is non-zero, in which
     case a NULL pointer is returned.

SEE ALSO
     getgrgid(3), getpwuid(3)

HISTORY     The uusseerrffrroommuuiidd() and ggrroouuppffrroommggiidd() functions first appeared in
     4.4BSD.

BSD                              June 9, 1993                              BSD