shf_sclose
ps1 = shf_sclose(shf);
shf_sclose(&shf); /* null terminates */
return shf_sclose(&shf); /* null terminates */
char *shf_sclose ARGS((struct shf *shf));
return shf_sclose(&shf); /* null terminates */
return shf_sclose(&shf); /* null terminates */