GCOV - Varnish Cache


/*-
 * Copyright (c) 2010-2015 Varnish Software AS
 * All rights reserved.
 *
 * Author: Poul-Henning Kamp <phk@phk.freebsd.dk>
 *
 * SPDX-License-Identifier: BSD-2-Clause
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * Turn vmod JSON spec into symbols
 *
 */

#include "config.h"

#include <stdlib.h>
#include <string.h>

#include "vcc_compile.h"

#include "libvcc.h"
#include "vjsn.h"

#include "vcc_vmod.h"

struct vmod_obj {
        unsigned                magic;
#define VMOD_OBJ_MAGIC          0x349885f8
        char                    *name;
        struct type             type[1];
        VTAILQ_ENTRY(vmod_obj)  list;
};

static void
vcc_VmodObject(struct vcc *tl, struct symbol *sym)
{
        struct vmod_obj *obj;
        struct vsb *buf;

        buf = VSB_new_auto();
        AN(buf);

        VSB_printf(buf, "%s.%s", sym->vmod_name, sym->name);
        AZ(VSB_finish(buf));

        ALLOC_OBJ(obj, VMOD_OBJ_MAGIC);
        AN(obj);
        REPLACE(obj->name, VSB_data(buf));

        INIT_OBJ(obj->type, TYPE_MAGIC);
        obj->type->name = obj->name;
        sym->type = obj->type;
        VTAILQ_INSERT_TAIL(&tl->vmod_objects, obj, list);
        VSB_destroy(&buf);
}

static void
alias_sym(struct vcc *tl, const struct symbol *psym, const struct vjsn_val *v)
{
        char *alias = NULL, *func = NULL;
        struct symbol *sym;
        struct vsb *buf;

        buf = VSB_new_auto();
        AN(buf);

        VCC_SymName(buf, psym);
        VSB_printf(buf, ".%s", v->value);
        AZ(VSB_finish(buf));
        REPLACE(alias, VSB_data(buf));

        v = VTAILQ_NEXT(v, list);
        assert(vjsn_is_string(v));

        VSB_clear(buf);
        VCC_SymName(buf, psym);
        VSB_printf(buf, ".%s", v->value);
        AZ(VSB_finish(buf));
        REPLACE(func, VSB_data(buf));

        sym = VCC_MkSymAlias(tl, alias, func);
        AN(sym);
        assert(sym->kind == SYM_FUNC || sym->kind == SYM_METHOD);
        VSB_destroy(&buf);
        free(alias);
        free(func);
}

static void
func_restrict(struct vcc *tl, struct symbol *sym, vcc_kind_t kind, const struct vjsn_val *v)
{
        struct vjsn_val *vv;

        AN(v);
        AN(sym);

        if (kind != SYM_FUNC && kind != SYM_METHOD)
                return;

        v = VTAILQ_NEXT(v, list);
        if (!v || !vjsn_is_array(v))
                return;
        vv = VTAILQ_FIRST(&v->children);
        AN(vv);
        assert(vjsn_is_string(vv));
        if (strcmp(vv->value, "$RESTRICT"))
                return;
        vv = VTAILQ_NEXT(vv, list);
        AN(vv);
        assert(vjsn_is_array(vv));
        sym->r_methods = 0;
        vv = VTAILQ_FIRST(&vv->children);
        unsigned s;
        while (vv) {
                s = 0;
#define VCL_CTX(l,H)                                                    \
                if (strcmp(vv->value, #l) == 0) s = VCL_MET_##H;
#include "tbl/vcl_context.h"
                if (!s) {
                        VSB_printf(tl->sb, "Error in vmod \"%s\", invalid scope for $Restrict: %s\n",sym->vmod_name, vv->value);
                        tl->err = 1;
                        break;
                }
                sym->r_methods |= s;
                vv = VTAILQ_NEXT(vv,list);
        }
}

static void
func_sym(struct vcc *tl, vcc_kind_t kind, const struct symbol *psym,
    const struct vjsn_val *v, const struct vjsn_val *vv)
{
        struct symbol *sym;
        struct vsb *buf;

        if (kind == SYM_ALIAS) {
                alias_sym(tl, psym, v);
                return;
        }

        buf = VSB_new_auto();
        AN(buf);

        VCC_SymName(buf, psym);
        VSB_printf(buf, ".%s", v->value);
        AZ(VSB_finish(buf));
        sym = VCC_MkSym(tl, VSB_data(buf), SYM_MAIN, kind, VCL_LOW, VCL_HIGH);
        AN(sym);
        VSB_destroy(&buf);

        if (kind == SYM_OBJECT) {
                sym->eval_priv = v;
                sym->vmod_name = psym->vmod_name;
                sym->r_methods = VCL_MET_INIT;
                vcc_VmodObject(tl, sym);
                vcc_VmodSymbols(tl, sym);
                return;
        }

        if (kind == SYM_METHOD)
                sym->extra = psym->rname;

        v = VTAILQ_NEXT(v, list);

        assert(vjsn_is_array(v));
        sym->action = vcc_Act_Call;
        sym->vmod_name = psym->vmod_name;
        sym->eval = vcc_Eval_SymFunc;
        sym->eval_priv = v;
        v = VTAILQ_FIRST(&v->children);
        assert(vjsn_is_array(v));
        v = VTAILQ_FIRST(&v->children);
        assert(vjsn_is_string(v));
        sym->type = VCC_Type(v->value);
        AN(sym->type);
        sym->r_methods = VCL_MET_TASK_ALL;
        func_restrict(tl, sym, kind, vv);
}

void
vcc_VmodSymbols(struct vcc *tl, const struct symbol *sym)
{
        const struct vjsn *vj;
        const struct vjsn_val *vv, *vv1, *vv2;
        vcc_kind_t kind;

        if (sym->kind == SYM_VMOD) {
                CAST_OBJ_NOTNULL(vj, sym->eval_priv, VJSN_MAGIC);
                vv = VTAILQ_FIRST(&vj->value->children);
        } else if (sym->kind == SYM_OBJECT) {
                CAST_OBJ_NOTNULL(vv, sym->eval_priv, VJSN_VAL_MAGIC);
        } else {
                WRONG("symbol kind");
        }

        for (; vv != NULL; vv = VTAILQ_NEXT(vv, list)) {
                if (!vjsn_is_array(vv))
                        continue;
                vv1 = VTAILQ_FIRST(&vv->children);
                AN(vv1);
                assert(vjsn_is_string(vv1));
                vv2 = VTAILQ_NEXT(vv1, list);
                AN(vv2);
                if (!vjsn_is_string(vv2))
                        continue;

                kind = SYM_NONE;
#define STANZA(UU, ll, ss) if (!strcmp(vv1->value, "$" #UU)) kind = ss;
        STANZA_TBL
#undef STANZA
                if (kind != SYM_NONE) {
                        func_sym(tl, kind, sym, vv2, vv);
                        ERRCHK(tl);
                }
        }
}

void v_matchproto_(sym_act_f)
vcc_Act_New(struct vcc *tl, struct token *t, struct symbol *sym)
{
        struct symbol *isym, *osym;
        struct inifin *ifp;
        struct vsb *buf;
        const struct vjsn_val *vv, *vf;
        int null_ok = 0;

        (void)sym;
        (void)t;

        ExpectErr(tl, ID);
        vcc_ExpectVid(tl, "VCL object");
        ERRCHK(tl);
        isym = VCC_HandleSymbol(tl, INSTANCE);
        ERRCHK(tl);
        AN(isym);
        isym->noref = 1;
        isym->action = vcc_Act_Obj;

        SkipToken(tl, '=');
        ExpectErr(tl, ID);
        osym = VCC_SymbolGet(tl, SYM_MAIN, SYM_OBJECT, SYMTAB_EXISTING,
            XREF_NONE);
        ERRCHK(tl);
        AN(osym);

        /* Scratch the generic INSTANCE type */
        isym->type = osym->type;

        CAST_OBJ_NOTNULL(vv, osym->eval_priv, VJSN_VAL_MAGIC);
        // vv = object name

        isym->vmod_name = osym->vmod_name;
        isym->eval_priv = vv;

        vv = VTAILQ_NEXT(vv, list);
        // vv = flags
        assert(vjsn_is_object(vv));
        VTAILQ_FOREACH(vf, &vv->children, list)
                if (!strcmp(vf->name, "NULL_OK") && vjsn_is_true(vf))
                        null_ok = 1;
        if (!null_ok)
                VTAILQ_INSERT_TAIL(&tl->sym_objects, isym, sideways);

        vv = VTAILQ_NEXT(vv, list);
        // vv = struct name

        Fh(tl, 0, "static %s *%s;\n\n", vv->value, isym->rname);
        vv = VTAILQ_NEXT(vv, list);

        vf = VTAILQ_FIRST(&vv->children);
        vv = VTAILQ_NEXT(vv, list);
        assert(vjsn_is_string(vf));
        assert(!strcmp(vf->value, "$INIT"));

        vf = VTAILQ_NEXT(vf, list);

        buf = VSB_new_auto();
        AN(buf);
        VSB_printf(buf, "&%s, \"%s\"", isym->rname, isym->name);
        AZ(VSB_finish(buf));
        vcc_Eval_Func(tl, vf, VSB_data(buf), osym);
        VSB_destroy(&buf);
        ERRCHK(tl);
        SkipToken(tl, ';');
        isym->def_e = tl->t;

        vf = VTAILQ_FIRST(&vv->children);
        assert(vjsn_is_string(vf));
        assert(!strcmp(vf->value, "$FINI"));

        vf = VTAILQ_NEXT(vf, list);
        vf = VTAILQ_FIRST(&vf->children);
        vf = VTAILQ_NEXT(vf, list);
        ifp = New_IniFin(tl);
        VSB_printf(ifp->fin, "\t\tif (%s)\n", isym->rname);
        VSB_printf(ifp->fin, "\t\t\t\t%s(&%s);", vf->value, isym->rname);
}

		varnish-cache/lib/libvcc/vcc_vmod_sym.c
0		/*-
1		* Copyright (c) 2010-2015 Varnish Software AS
2		* All rights reserved.
3		*
4		* Author: Poul-Henning Kamp <phk@phk.freebsd.dk>
5		*
6		* SPDX-License-Identifier: BSD-2-Clause
7		*
8	16740	* Redistribution and use in source and binary forms, with or without
9	16740	* modification, are permitted provided that the following conditions
10	16740	* are met:
11	16740	* 1. Redistributions of source code must retain the above copyright
12	16740	* notice, this list of conditions and the following disclaimer.
13	16740	* 2. Redistributions in binary form must reproduce the above copyright
14	16740	* notice, this list of conditions and the following disclaimer in the
15	16740	* documentation and/or other materials provided with the distribution.
16	16740	*
17	16740	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18	16740	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19	16740	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20	16740	* ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
21	16740	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22	16740	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23	16740	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24	16740	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25		* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26		* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27		* SUCH DAMAGE.
28		*
29		* Turn vmod JSON spec into symbols
30		*
31		*/
32
33		#include "config.h"
34
35		#include <stdlib.h>
36		#include <string.h>
37
38		#include "vcc_compile.h"
39
40		#include "libvcc.h"
41		#include "vjsn.h"
42
43		#include "vcc_vmod.h"
44
45		struct vmod_obj {
46		unsigned magic;
47		#define VMOD_OBJ_MAGIC 0x349885f8
48		char *name;
49		struct type type[1];
50		VTAILQ_ENTRY(vmod_obj) list;
51		};
52
53		static void
54	5760	vcc_VmodObject(struct vcc tl, struct symbol sym)
55		{
56		struct vmod_obj *obj;
57		struct vsb *buf;
58
59	5760	buf = VSB_new_auto();
60	5760	AN(buf);
61
62	5760	VSB_printf(buf, "%s.%s", sym->vmod_name, sym->name);
63	5760	AZ(VSB_finish(buf));
64
65	5760	ALLOC_OBJ(obj, VMOD_OBJ_MAGIC);
66	5760	AN(obj);
67	5760	REPLACE(obj->name, VSB_data(buf));
68
69	5760	INIT_OBJ(obj->type, TYPE_MAGIC);
70	5760	obj->type->name = obj->name;
71	5760	sym->type = obj->type;
72	5760	VTAILQ_INSERT_TAIL(&tl->vmod_objects, obj, list);
73	5760	VSB_destroy(&buf);
74	5760	}
75
76		static void
77	560	alias_sym(struct vcc tl, const struct symbol psym, const struct vjsn_val *v)
78		{
79	560	char alias = NULL, func = NULL;
80		struct symbol *sym;
81		struct vsb *buf;
82
83	560	buf = VSB_new_auto();
84	560	AN(buf);
85
86	560	VCC_SymName(buf, psym);
87	560	VSB_printf(buf, ".%s", v->value);
88	560	AZ(VSB_finish(buf));
89	560	REPLACE(alias, VSB_data(buf));
90
91	560	v = VTAILQ_NEXT(v, list);
92	560	assert(vjsn_is_string(v));
93
94	560	VSB_clear(buf);
95	560	VCC_SymName(buf, psym);
96	560	VSB_printf(buf, ".%s", v->value);
97	560	AZ(VSB_finish(buf));
98	560	REPLACE(func, VSB_data(buf));
99
100	560	sym = VCC_MkSymAlias(tl, alias, func);
101	560	AN(sym);
102	560	assert(sym->kind == SYM_FUNC \|\| sym->kind == SYM_METHOD);
103	560	VSB_destroy(&buf);
104	560	free(alias);
105	560	free(func);
106	560	}
107
108		static void
109	82212	func_restrict(struct vcc tl, struct symbol sym, vcc_kind_t kind, const struct vjsn_val *v)
110		{
111		struct vjsn_val *vv;
112
113	82212	AN(v);
114	82212	AN(sym);
115
116	82212	if (kind != SYM_FUNC && kind != SYM_METHOD)
117	0	return;
118
119	82212	v = VTAILQ_NEXT(v, list);
120	82212	if (!v \|\| !vjsn_is_array(v))
121	6064	return;
122	76148	vv = VTAILQ_FIRST(&v->children);
123	76148	AN(vv);
124	76148	assert(vjsn_is_string(vv));
125	76148	if (strcmp(vv->value, "$RESTRICT"))
126	68416	return;
127	7732	vv = VTAILQ_NEXT(vv, list);
128	7732	AN(vv);
129	7732	assert(vjsn_is_array(vv));
130	7732	sym->r_methods = 0;
131	7732	vv = VTAILQ_FIRST(&vv->children);
132		unsigned s;
133	24468	while (vv) {
134	16740	s = 0;
135		#define VCL_CTX(l,H) \
136		if (strcmp(vv->value, #l) == 0) s = VCL_MET_##H;
137		#include "tbl/vcl_context.h"
138	16740	if (!s) {
139	4	VSB_printf(tl->sb, "Error in vmod \"%s\", invalid scope for $Restrict: %s\n",sym->vmod_name, vv->value);
140	4	tl->err = 1;
141	4	break;
142		}
143		sym->r_methods \|= s;
144		vv = VTAILQ_NEXT(vv,list);
145		}
146	82212	}
147
148		static void
149	88532	func_sym(struct vcc tl, vcc_kind_t kind, const struct symbol psym,
150		const struct vjsn_val v, const struct vjsn_val vv)
151		{
152		struct symbol *sym;
153		struct vsb *buf;
154
155	88532	if (kind == SYM_ALIAS) {
156	560	alias_sym(tl, psym, v);
157	560	return;
158		}
159
160	87972	buf = VSB_new_auto();
161	87972	AN(buf);
162
163	87972	VCC_SymName(buf, psym);
164	87972	VSB_printf(buf, ".%s", v->value);
165	87972	AZ(VSB_finish(buf));
166	87972	sym = VCC_MkSym(tl, VSB_data(buf), SYM_MAIN, kind, VCL_LOW, VCL_HIGH);
167	87972	AN(sym);
168	87972	VSB_destroy(&buf);
169
170	87972	if (kind == SYM_OBJECT) {
171	5760	sym->eval_priv = v;
172	5760	sym->vmod_name = psym->vmod_name;
173	5760	sym->r_methods = VCL_MET_INIT;
174	5760	vcc_VmodObject(tl, sym);
175	5760	vcc_VmodSymbols(tl, sym);
176	5760	return;
177		}
178
179	82212	if (kind == SYM_METHOD)
180	18276	sym->extra = psym->rname;
181
182	82212	v = VTAILQ_NEXT(v, list);
183
184	82212	assert(vjsn_is_array(v));
185	82212	sym->action = vcc_Act_Call;
186	82212	sym->vmod_name = psym->vmod_name;
187	82212	sym->eval = vcc_Eval_SymFunc;
188	82212	sym->eval_priv = v;
189	82212	v = VTAILQ_FIRST(&v->children);
190	82212	assert(vjsn_is_array(v));
191	82212	v = VTAILQ_FIRST(&v->children);
192	82212	assert(vjsn_is_string(v));
193	82212	sym->type = VCC_Type(v->value);
194	82212	AN(sym->type);
195	82212	sym->r_methods = VCL_MET_TASK_ALL;
196	82212	func_restrict(tl, sym, kind, vv);
197	88532	}
198
199		void
200	8032	vcc_VmodSymbols(struct vcc tl, const struct symbol sym)
201		{
202		const struct vjsn *vj;
203		const struct vjsn_val vv, vv1, *vv2;
204		vcc_kind_t kind;
205
206	8032	if (sym->kind == SYM_VMOD) {
207	2272	CAST_OBJ_NOTNULL(vj, sym->eval_priv, VJSN_MAGIC);
208	2272	vv = VTAILQ_FIRST(&vj->value->children);
209	8032	} else if (sym->kind == SYM_OBJECT) {
210	5760	CAST_OBJ_NOTNULL(vv, sym->eval_priv, VJSN_VAL_MAGIC);
211	5760	} else {
212	0	WRONG("symbol kind");
213		}
214
215	138124	for (; vv != NULL; vv = VTAILQ_NEXT(vv, list)) {
216	130096	if (!vjsn_is_array(vv))
217	17280	continue;
218	112816	vv1 = VTAILQ_FIRST(&vv->children);
219	112816	AN(vv1);
220	112816	assert(vjsn_is_string(vv1));
221	112816	vv2 = VTAILQ_NEXT(vv1, list);
222	112816	AN(vv2);
223	112816	if (!vjsn_is_string(vv2))
224	19248	continue;
225
226	93568	kind = SYM_NONE;
227		#define STANZA(UU, ll, ss) if (!strcmp(vv1->value, "$" #UU)) kind = ss;
228	93568	STANZA_TBL
229		#undef STANZA
230	93568	if (kind != SYM_NONE) {
231	88532	func_sym(tl, kind, sym, vv2, vv);
232	88532	ERRCHK(tl);
233	88528	}
234	93564	}
235	8032	}
236
237		void v_matchproto_(sym_act_f)
238	828	vcc_Act_New(struct vcc tl, struct token t, struct symbol *sym)
239		{
240		struct symbol isym, osym;
241		struct inifin *ifp;
242		struct vsb *buf;
243		const struct vjsn_val vv, vf;
244	828	int null_ok = 0;
245
246	828	(void)sym;
247	828	(void)t;
248
249	828	ExpectErr(tl, ID);
250	828	vcc_ExpectVid(tl, "VCL object");
251	828	ERRCHK(tl);
252	824	isym = VCC_HandleSymbol(tl, INSTANCE);
253	824	ERRCHK(tl);
254	816	AN(isym);
255	816	isym->noref = 1;
256	816	isym->action = vcc_Act_Obj;
257
258	816	SkipToken(tl, '=');
259	816	ExpectErr(tl, ID);
260	816	osym = VCC_SymbolGet(tl, SYM_MAIN, SYM_OBJECT, SYMTAB_EXISTING,
261		XREF_NONE);
262	816	ERRCHK(tl);
263	804	AN(osym);
264
265		/* Scratch the generic INSTANCE type */
266	804	isym->type = osym->type;
267
268	804	CAST_OBJ_NOTNULL(vv, osym->eval_priv, VJSN_VAL_MAGIC);
269		// vv = object name
270
271	804	isym->vmod_name = osym->vmod_name;
272	804	isym->eval_priv = vv;
273
274	804	vv = VTAILQ_NEXT(vv, list);
275		// vv = flags
276	804	assert(vjsn_is_object(vv));
277	1608	VTAILQ_FOREACH(vf, &vv->children, list)
278	820	if (!strcmp(vf->name, "NULL_OK") && vjsn_is_true(vf))
279	16	null_ok = 1;
280	804	if (!null_ok)
281	788	VTAILQ_INSERT_TAIL(&tl->sym_objects, isym, sideways);
282
283	804	vv = VTAILQ_NEXT(vv, list);
284		// vv = struct name
285
286	804	Fh(tl, 0, "static %s *%s;\n\n", vv->value, isym->rname);
287	804	vv = VTAILQ_NEXT(vv, list);
288
289	804	vf = VTAILQ_FIRST(&vv->children);
290	804	vv = VTAILQ_NEXT(vv, list);
291	804	assert(vjsn_is_string(vf));
292	804	assert(!strcmp(vf->value, "$INIT"));
293
294	804	vf = VTAILQ_NEXT(vf, list);
295
296	804	buf = VSB_new_auto();
297	804	AN(buf);
298	804	VSB_printf(buf, "&%s, \"%s\"", isym->rname, isym->name);
299	804	AZ(VSB_finish(buf));
300	804	vcc_Eval_Func(tl, vf, VSB_data(buf), osym);
301	804	VSB_destroy(&buf);
302	804	ERRCHK(tl);
303	804	SkipToken(tl, ';');
304	804	isym->def_e = tl->t;
305
306	804	vf = VTAILQ_FIRST(&vv->children);
307	804	assert(vjsn_is_string(vf));
308	804	assert(!strcmp(vf->value, "$FINI"));
309
310	804	vf = VTAILQ_NEXT(vf, list);
311	804	vf = VTAILQ_FIRST(&vf->children);
312	804	vf = VTAILQ_NEXT(vf, list);
313	804	ifp = New_IniFin(tl);
314	804	VSB_printf(ifp->fin, "\t\tif (%s)\n", isym->rname);
315	804	VSB_printf(ifp->fin, "\t\t\t\t%s(&%s);", vf->value, isym->rname);
316	828	}