gen/FreeBSD/nice.c.patch

   1 --- nice.c.orig 2009-11-07 14:51:38.000000000 -0800
   2 +++ nice.c      2009-11-07 14:51:40.000000000 -0800
   3 @@ -38,7 +38,9 @@ __FBSDID("$FreeBSD: src/lib/libc/gen/nic
   4  #include <sys/resource.h>
   5  #include <errno.h>
   6  #include <unistd.h>
   7 -
   8 +#if __DARWIN_UNIX03
   9 +#include <limits.h>
  10 +#endif /* __DARWIN_UNIX03 */
  11  /*
  12   * Backwards compatible nice.
  13   */
  14 @@ -46,11 +48,18 @@ int
  15  nice(incr)
  16         int incr;
  17  {
  18 -       int prio;
  19 +       int prio, rv;
  20
  21         errno = 0;
  22         prio = getpriority(PRIO_PROCESS, 0);
  23         if (prio == -1 && errno)
  24                 return (-1);
  25 -       return (setpriority(PRIO_PROCESS, 0, prio + incr));
  26 +#if __DARWIN_UNIX03
  27 +       if (prio + incr > NZERO-1)
  28 +               incr = NZERO-1-prio;
  29 +#endif /* __DARWIN_UNIX03 */
  30 +       rv = setpriority(PRIO_PROCESS, 0, prio + incr);
  31 +       if (rv == -1 && errno == EACCES)
  32 +               errno = EPERM;
  33 +       return (rv == -1) ? rv : getpriority(PRIO_PROCESS, 0);
  34  }