minix/lib/libc/sys/m_closefrom.c

   1 #include <sys/cdefs.h>
   2 #include "namespace.h"
   3 #include <lib.h>
   4 #include <stdlib.h>
   5 #include <unistd.h>
   6
   7 int closefrom(int fd)
   8 {
   9         int f, ok = 0, e = 0;
  10         for(f = fd; f < OPEN_MAX; f++) {
  11                 if(close(f) >= 0)
  12                         ok = 1;
  13                 else
  14                         e = errno;
  15         }
  16
  17         if(ok)
  18                 return 0;
  19
  20         /* all failed - return last valid error */
  21         errno = e;
  22         return -1;
  23 }