4.4BSD/usr/share/man/cat3/group_from_gid.0

PWCACHE(3)                  BSD Programmer's Manual                 PWCACHE(3)

NNAAMMEE
     ppwwccaacchhee - cache password and group entries

SSYYNNOOPPSSIISS
     uusseerr__ffrroomm__uuiidd(_u_i_d___t _u_i_d, _i_n_t _n_o_u_s_e_r);

     ggrroouupp__ffrroomm__ggiidd(_g_i_d___t _g_i_d, _i_n_t _n_o_g_r_o_u_p);

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

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

SSEEEE AALLSSOO
     getgrgid(3),  getpwuid(3)

HHIISSTTOORRYY
     The uusseerr__ffrroomm__iidd() and ggrroouupp__ffrroomm__iidd() functions first appeared in
     4.4BSD.

4.4BSD                           June 9, 1993                                1