ref: fbf9f131b5931defb02ff08d54d1e088d9f51a15
dir: /sys/src/ape/lib/ap/plan9/getgid.c/
#include <sys/types.h>
#include <grp.h>
#include <unistd.h>
/*
* BUG: assumes group that is same as user name
* is the one wanted (plan 9 has no "current group")
*/
gid_t
getgid(void)
{
struct group *g;
g = getgrnam(getlogin());
return g? g->gr_gid : 1;
}
gid_t
getegid(void)
{
return getgid();
}