ref: acd2079ebf458c20ad5b3e5504c00a92d5fe46f1
dir: /sys/src/ape/lib/ap/plan9/cuserid.c/
#include <unistd.h> #include <stdio.h> #include <string.h> /* * BUG: supposed to be for effective uid, * but plan9 doesn't have that concept */ char * cuserid(char *s) { char *logname; static char buf[L_cuserid]; if((logname = getlogin()) == NULL) return(NULL); if(s == 0) s = buf; strncpy(s, logname, sizeof buf); return(s); }