int
pam_modutil_sanitize_helper_fds(pam_handle_t *pamh,
enum pam_modutil_redirect_fd stdin_mode,
enum pam_modutil_redirect_fd stdout_mode,
enum pam_modutil_redirect_fd stderr_mode)
{
if (stdin_mode != PAM_MODUTIL_IGNORE_FD &&
redirect_in_pipe(pamh, STDIN_FILENO, "stdin") < 0) {
return -1;
}
if (redirect_out(pamh, stdout_mode, STDOUT_FILENO, "stdout") < 0)
return -1;
/*
* If stderr should not be ignored and
* redirect mode for stdout and stderr are the same,
* optimize by redirecting stderr to stdout.
*/
if (stderr_mode != PAM_MODUTIL_IGNORE_FD &&
stdout_mode == stderr_mode) {
if (dup2(STDOUT_FILENO, STDERR_FILENO) != STDERR_FILENO) {
pam_syslog(pamh, LOG_ERR,
"dup2 of %s failed: %m", "stderr");
return -1;
}
} else {
if (redirect_out(pamh, stderr_mode, STDERR_FILENO, "stderr") < 0)
return -1;
}
close_fds();
return 0;
}
void convert_S_to_s(char *path)
{
build_arglist(CMD_CPP);
redirect_in(path);
redirect_out(pathmod(path, ".S", ".s", 1));
run_command();
}
void convert_c_to_s(char *path)
{
char *tmp;
build_arglist(CMD_CC);
redirect_in(path);
tmp = strdup(pathmod(path, ".%", ".@", 0));
if (tmp == NULL)
memory();
redirect_out(tmp);
run_command();
build_arglist(CMD_COPT);
add_argument(COPT_FILE);
redirect_in(tmp);
redirect_out(pathmod(path, ".%", ".s", 2));
run_command();
free(tmp);
}
void preprocess_c(char *path)
{
build_arglist(CMD_CPP);
add_argument_list("-I", &inclist);
add_argument_list("-D", &deflist);
add_argument(path);
/* Weird one .. -E goes to stdout */
if (last_phase != 1)
redirect_out(pathmod(path, ".c", ".%", 0));
run_command();
}
