static void guest_suspend(const char *pmutils_bin, const char *sysfile_str, Error **err) { pid_t pid; char *pmutils_path; pmutils_path = g_find_program_in_path(pmutils_bin); pid = fork(); if (pid == 0) { /* child */ int fd; setsid(); reopen_fd_to_null(0); reopen_fd_to_null(1); reopen_fd_to_null(2); if (pmutils_path) { execle(pmutils_path, pmutils_bin, NULL, environ); } /* * If we get here either pm-utils is not installed or execle() has * failed. Let's try the manual method if the caller wants it. */ if (!sysfile_str) { _exit(EXIT_FAILURE); } fd = open(LINUX_SYS_STATE_FILE, O_WRONLY); if (fd < 0) { _exit(EXIT_FAILURE); } if (write(fd, sysfile_str, strlen(sysfile_str)) < 0) { _exit(EXIT_FAILURE); } _exit(EXIT_SUCCESS); } g_free(pmutils_path); if (pid < 0) { error_set(err, QERR_UNDEFINED_ERROR); return; } }