date and time created 83/08/11 20:49:31 by sam

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

/*      groups.c        4.6     83/06/29        */

/*
* groups
*/

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

int     groups[NGROUPS];

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

       if (argc > 1)
               showgroups(argv[1]);
       ngroups = getgroups(NGROUPS, groups);
       for (i = 0; i < ngroups; i++) {
               gr = getgrgid(groups[i]);
               if (gr == NULL)
                       printf("%s%d", sep, groups[i]);
               else
                       printf("%s%s", sep, gr->gr_name);
               sep = " ";
       }
       printf("\n");
       exit(0);
}

showgroups(user)
       register char *user;
{
       register struct group *gr;
       register char **cp;
       char *sep = "";

       while (gr = getgrent())
               for (cp = gr->gr_mem; cp && *cp; cp++)
                       if (strcmp(*cp, user) == 0) {
                               printf("%s%s", sep, gr->gr_name);
                               sep = " ";
                               break;
                       }
       printf("\n");
       exit(0);
}