Changeset f00af83 in mainline for uspace/lib/posix/fcntl.c

Timestamp:

2011-08-19T17:09:26Z (13 years ago)

Author:

Petr Koupy <petr.koupy@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

07b39338, 921b84f, be79a663

Parents:

107f2e0

Message:

Removed no more supported functionality from freopen() and fcntl() as a reaction to mainline changes.

File:

• uspace/lib/posix/fcntl.c (modified) (1 diff)

uspace/lib/posix/fcntl.c

@@ -52 +52 @@
 int posix_fcntl(int fd, int cmd, ...)
 {
-        int rc;
         int flags;
 
         switch (cmd) {
         case F_DUPFD:
-        case F_DUPFD_CLOEXEC: /* FD_CLOEXEC is not supported. */
-                /* VFS does not provide means to express constraints on the new
-                 * file descriptor so the third argument is ignored. */
-
-                /* Retrieve node triplet corresponding to the file descriptor. */
-                /* Empty statement after label. */;
-                fdi_node_t node;
-                rc = fd_node(fd, &node);
-                if (rc != EOK) {
-                        errno = -rc;
-                        return -1;
-                }
-
-                /* Reopen the node so the fresh file descriptor is generated. */
-                int newfd = open_node(&node, 0);
-                if (newfd < 0) {
-                        errno = -newfd;
-                        return -1;
-                }
-
-                /* Associate the newly generated descriptor to the file description
-                 * of the old file descriptor. Just reopened node will be automatically
-                 * closed. */
-                rc = dup2(fd, newfd);
-                if (rc != EOK) {
-                        errno = -rc;
-                        return -1;
-                }
-
-                return newfd;
+        case F_DUPFD_CLOEXEC:
+                /* VFS currently does not provide the functionality to duplicate
+                 * opened file descriptor. */
+                // FIXME: implement this once dup() is available
+                errno = ENOTSUP;
+                return -1;
         case F_GETFD:
                 /* FD_CLOEXEC is not supported. There are no other flags. */