+static int child_status(int status)
+{
+ return WIFEXITED(status) ? WEXITSTATUS(status) : -1;
+}
+
+static int do_rmtacl(int argc, char *argv[], int ops, int (output_func)(char *))
+{
+ pid_t pid = 0;
+ int fd[2], status;
+ FILE *fp;
+ char buf[PIPE_BUF];
+
+ if (output_func) {
+ if (pipe(fd) < 0) {
+ perror("pipe");
+ return -1;
+ }
+
+ if ((pid = fork()) < 0) {
+ perror("fork");
+ close(fd[0]);
+ close(fd[1]);
+ return -1;
+ } else if (!pid) {
+ /* child process redirects its output. */
+ close(fd[0]);
+ close(1);
+ if (dup2(fd[1], 1) < 0) {
+ perror("dup2");
+ close(fd[1]);
+ return -1;
+ }
+ } else {
+ close(fd[1]);
+ }
+ }
+
+ if (!pid) {
+ status = rmtacl_notify(ops);
+ if (status < 0)
+ return -1;
+
+ exit(execvp(argv[0], argv));
+ }
+
+ /* the following is parent process */
+ if ((fp = fdopen(fd[0], "r")) == NULL) {
+ perror("fdopen");
+ kill(pid, SIGKILL);
+ close(fd[0]);
+ return -1;
+ }
+
+ while (fgets(buf, PIPE_BUF, fp) != NULL) {
+ if (output_func(buf) < 0)
+ fprintf(stderr, "WARNING: unexpected error!\n[%s]\n",
+ buf);
+ }
+ fclose(fp);
+ close(fd[0]);
+
+ if (waitpid(pid, &status, 0) < 0) {
+ perror("waitpid");
+ return -1;
+ }
+
+ return child_status(status);
+}
+
+int llapi_lsetfacl(int argc, char *argv[])
+{
+ return do_rmtacl(argc, argv, RMT_LSETFACL, NULL);
+}
+
+int llapi_lgetfacl(int argc, char *argv[])
+{
+ return do_rmtacl(argc, argv, RMT_LGETFACL, NULL);
+}
+
+int llapi_rsetfacl(int argc, char *argv[])
+{
+ return do_rmtacl(argc, argv, RMT_RSETFACL, NULL);
+}
+
+int llapi_rgetfacl(int argc, char *argv[])
+{
+ return do_rmtacl(argc, argv, RMT_RGETFACL, rgetfacl_output);
+}
+
+int llapi_cp(int argc, char *argv[])
+{
+ int rc;
+
+ rc = rmtacl_notify(RMT_RSETFACL);
+ if (rc < 0)
+ return -1;
+
+ exit(execvp(argv[0], argv));
+}
+
+int llapi_ls(int argc, char *argv[])
+{
+ int rc;
+
+ rc = rmtacl_notify(RMT_LGETFACL);
+ if (rc < 0)
+ return -1;
+
+ exit(execvp(argv[0], argv));