change setgrp(0, grps) to getgrp(grps)

[unix-history] / usr / src / old / groups / groups.c

/*      groups.c        4.2     82/09/11        */

/*
* groups
*/

#include <sys/param.h>
#include <grp.h>
#include <pwd.h>

int     grps[NGRPS/(sizeof(int)*8)];
struct  group *gr, *getgrgid();

main(argc, argv)
       int argc;
       char *argv[];
{
       char *sep = "";
       int i;

       getgrp(grps);
       for (i = 0; i < NGRPS; i++)
               if (grps[i/(sizeof(int)*8)] & (1<<(i%(sizeof(int)*8)))) {
                       gr = getgrgid(i);
                       if (gr == NULL)
                               printf("%s%d", sep, i);
                       else
                               printf("%s%s", sep, gr->gr_name);
                       sep = " ";
               }
       printf("\n");
       exit(0);
}