src/legacy/cuserid.c

   1 #define _GNU_SOURCE
   2 #include <pwd.h>
   3 #include <stdio.h>
   4 #include <unistd.h>
   5
   6 char *cuserid(char *buf)
   7 {
   8         static char usridbuf[L_cuserid];
   9         struct passwd pw, *ppw;
  10         long pwb[256];
  11         if (getpwuid_r(geteuid(), &pw, (void *)pwb, sizeof pwb, &ppw))
  12                 return 0;
  13         if (!buf) buf = usridbuf;
  14         snprintf(buf, L_cuserid, "%s", pw.pw_name);
  15         return buf;
  16 }