added F_MAXFD

[freeradius.git] / src / lib / misc.c

diff --git a/src/lib/misc.c b/src/lib/misc.c
index be63066..f062ecf 100644 (file)
--- a/src/lib/misc.c
+++ b/src/lib/misc.c
@@ -1360,19 +1360,32 @@ int closefrom(int fd)
        int i;
        int maxfd = 256;
 
+#ifdef F_CLOSEM
+       if (fcntl(fd, F_CLOSEM) == 0) {
+               return 0;
+       }
+#endif
+
+#ifdef F_MAXFD
+       maxfd = fcntl(fd, F_F_MAXFD);
+       if (maxfd >= 0) goto do_close;
+#endif
+
 #ifdef _SC_OPEN_MAX
        maxfd = sysconf(_SC_OPEN_MAX);
        if (maxfd < 0) {
-         maxfd = 256;
+               maxfd = 256;
        }
 #endif
 
+#ifdef F_MAXFD
+do_close:
+#endif
+
        if (fd > maxfd) return 0;
 
        /*
         *      FIXME: return EINTR?
-        *
-        *      Use F_CLOSEM?
         */
        for (i = fd; i < maxfd; i++) {
                close(i);