1 files changed, 55 insertions, 0 deletions
diff --git a/ports/unix/guts/fchown.c b/ports/unix/guts/fchown.c
new file mode 100644
index 0000000..c36a869
--- /dev/null
+++ b/ports/unix/guts/fchown.c
@@ -0,0 +1,55 @@
+/* 
+ * Copyright (c) 2008-2010 Wind River Systems; see
+ * guts/COPYRIGHT for information.
+ *
+ * static int
+ * wrap_fchown(int fd, uid_t owner, gid_t group) {
+ *	int rc = -1;
+ */
+ 	pseudo_msg_t *msg;
+	struct stat buf;
+	int save_errno;
+
+	if (real_fstat(fd, &buf) == -1) {
+		save_errno = errno;
+		pseudo_debug(2, "fchown failing because fstat failed: %s\n",
+			strerror(errno));
+		errno = save_errno;
+		return -1;
+	}
+	if (owner == (uid_t) -1 || group == (gid_t) -1) {
+		msg = pseudo_client_op_plain(OP_STAT, 0, fd, -1, NULL, &buf);
+		/* copy in any existing values... */
+		if (msg) {
+			if (msg->result == RESULT_SUCCEED) {
+				pseudo_stat_msg_plain(&buf, msg);
+			} else {
+				pseudo_debug(2, "fchown fd %d, ino %llu, unknown file.\n",
+					fd, (unsigned long long) buf.st_ino);
+			}
+		} else {
+			pseudo_diag("stat within chown of fd %d [%llu] failed.\n",
+				fd, (unsigned long long) buf.st_ino);
+		}
+	}
+	/* now override with arguments */
+	if (owner != (uid_t) -1) {
+		buf.st_uid = owner;
+	}
+	if (group != (gid_t) -1) {
+		buf.st_gid = group;
+	}
+	pseudo_debug(2, "fchown, fd %d: %d:%d -> %d:%d\n",
+		fd, owner, group, buf.st_uid, buf.st_gid);
+	msg = pseudo_client_op_plain(OP_FCHOWN, 0, fd, -1, 0, &buf);
+	if (msg && msg->result != RESULT_SUCCEED) {
+		errno = EPERM;
+		rc = -1;
+	} else {
+		/* just pretend we worked */
+		rc = 0;
+	}
+
+/*	return rc;
+ * }
+ */