doexec
doexec(struct command *t)
doexec(const char *name, char *argv[], int *exitcode)
doexec(char *fstype, char *newargv[])
doexec(struct mnttab *ment)
doexec(char *fstype, char *nargv[])
doexec(wchar_t *command, Boolean ignore_error, char *stdout_file, char *stderr_file, pathpt vroot_path, int nice_prio)