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 } 24