nvi/ex/ex_filter.c

41 	FILE *ifp, *ofp;
77 	ofp = NULL;
89 	if ((ofp = fdopen(output[0], "r")) == NULL) {
102 		if (ofp != NULL)
103 			(void)fclose(ofp);
157 	 * appends to the MARK, and closes ofp.
174 		if (ex_readfp(sp, "filter", ofp, fm, &nread, 1))
240 			 * pipe and display it.  Filter_ldisplay closes ofp.
242 			if (filter_ldisplay(sp, ofp))
248 			 * ofp.
250 			if (ex_readfp(sp, "filter", ofp, tm, &nread, 1))