src/prot.c


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#include "prot.h"

#include <grp.h>
#include <sys/types.h>
#include <unistd.h>

//#include "hasshsgr.h"

/**
  @file prot.c
  @author djb
  @ref qmail
  @brief setting up uid an gid for OS (short group was for ancient solaris)
*/

/* XXX: there are more portability problems here waiting to leap out at me */

int prot_gid(int gid)
{
  //#ifdef HASSHORTSETGROUPS
  //  short x[2];
  //  x[0] = gid; x[1] = 73; /* catch errors */
  //  if (setgroups(1,x) == -1) return -1;
  //#else
  if (setgroups(1, (gid_t *)&gid) == -1) return -1;
  //#endif
  return setgid(gid); /* _should_ be redundant, but on some systems it isn't */
}

int prot_uid(int uid)
{
  return setuid(uid);
}