GCOV - Varnish Cache


/*-
 * Copyright (c) 2010-2015 Varnish Software AS
 * All rights reserved.
 *
 * Author: Poul-Henning Kamp <phk@FreeBSD.org>
 *
 * 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.
 *
 */

#include "config.h"

#include <ctype.h>
#include <string.h>
#include <stdlib.h>
#include <sys/socket.h>

#include <netdb.h>

#include "cache/cache.h"

#include "vnum.h"
#include "vsa.h"
#include "vss.h"
#include "vtim.h"
#include "vcc_std_if.h"

/*
 * technically, as our VCL_INT is int64_t, its limits are INT64_MIN
 * .. INT64_MAX.
 *
 * We redistrict to VRT_INTEGER_MIN .. VRT_INTEGER_MAX
 */

/* limited by using double for conversions */
#define VCL_BYTES_MAX ((INT64_C(1)<<53)-1)

static
int onearg(VRT_CTX, const char *f, int nargs)
{
        if (nargs == 1)
                return (1);
        VRT_fail(ctx, "std.%s: %s arguments", f,
            nargs > 1 ? "too many" : "not enough");
        return (0);
}

/*
 * not handling real arg isfinite() / nan() : caller error
 * always trunc, never round
 */

VCL_DURATION v_matchproto_(td_std_duration)
vmod_duration(VRT_CTX, struct VARGS(duration) *a)
{
        double r;
        int nargs;

        CHECK_OBJ_NOTNULL(ctx, VRT_CTX_MAGIC);

        nargs = a->valid_s + a->valid_real + a->valid_integer;

        if (!onearg(ctx, "duration", nargs))
                return (0);

        if (a->valid_real)
                return ((VCL_DURATION)a->real);

        if (a->valid_integer)
                return ((VCL_DURATION)a->integer);

        if (a->valid_s) {
                r = VNUM_duration(a->s);
                if (!isnan(r))
                        return (r);
        }

        if (a->valid_fallback)
                return (a->fallback);

        VRT_fail(ctx, "std.duration: conversion failed");
        return (0);
}

VCL_BYTES v_matchproto_(td_std_bytes)
vmod_bytes(VRT_CTX, struct VARGS(bytes) *a)
{
        uintmax_t r;
        VCL_REAL rr;
        int nargs;
        const char *errtxt;

        CHECK_OBJ_NOTNULL(ctx, VRT_CTX_MAGIC);

        nargs = a->valid_s + a->valid_real + a->valid_integer;

        if (!onearg(ctx, "bytes", nargs))
                return (0);

        if (a->valid_s) {
                errtxt = VNUM_2bytes(a->s, &r, 0);
                if (errtxt == NULL && r <= VCL_BYTES_MAX)
                        return ((VCL_BYTES)r);
        }

        if (a->valid_real && !isnan(a->real) && a->real >= 0) {
                rr = trunc(a->real);
                if (rr <= (VCL_REAL)VCL_BYTES_MAX)
                        return ((VCL_BYTES)rr);
        }

        if (a->valid_integer && a->integer >= 0)
                return ((VCL_BYTES)a->integer);

        if (a->valid_fallback)
                return (a->fallback);

        VRT_fail(ctx, "std.bytes: conversion failed");
        return (0);
}

VCL_INT v_matchproto_(td_std_integer)
vmod_integer(VRT_CTX, struct VARGS(integer) *a)
{
        const char *p, *errtxt = NULL;
        double r, tmp;
        int nargs;

        CHECK_OBJ_NOTNULL(ctx, VRT_CTX_MAGIC);

        nargs = a->valid_s + a->valid_boolean + a->valid_bytes +
            a->valid_duration + a->valid_real + a->valid_time;

        if (!onearg(ctx, "integer", nargs))
                return (0);

        r = NAN;
        if (a->valid_boolean)
                return (a->boolean ? 1 : 0);

        if (a->valid_bytes)
                return (a->bytes);

        if (a->valid_s && a->s != NULL) {
                p = a->s;
                r = SF_Parse_Number(&p, 0, &errtxt);
                if (!errno && *p == '\0' && modf(r, &tmp) == 0.0)
                        return ((VCL_INT)r);
                r = NAN;
        }

        if (a->valid_duration)
                r = a->duration;

        if (a->valid_real)
                r = a->real;

        if (a->valid_time)
                r = a->time;

        if (!isnan(r)) {
                r = trunc(r);
                if (r >= VRT_INTEGER_MIN && r <= VRT_INTEGER_MAX)
                        return ((VCL_INT)r);
        }

        if (a->valid_fallback)
                return (a->fallback);

        if (errtxt != NULL)
                VRT_fail(ctx, "std.integer: conversion failed: %s", errtxt);
        else
                VRT_fail(ctx, "std.integer: conversion failed");
        return (0);
}

VCL_IP
vmod_ip(VRT_CTX, struct VARGS(ip) *a)
{
        uintptr_t sn;
        void *p;
        VCL_IP retval = NULL, fb = bogo_ip;

        CHECK_OBJ_NOTNULL(ctx, VRT_CTX_MAGIC);

        if (a->valid_fallback) {
                if (a->fallback == NULL || !VSA_Sane(a->fallback)) {
                        VRT_fail(ctx, "std.ip: invalid fallback");
                        return (fb);
                }
                fb = a->fallback;
        }

        sn = WS_Snapshot(ctx->ws);
        p = WS_Alloc(ctx->ws, vsa_suckaddr_len);
        if (p == NULL) {
                VRT_fail(ctx, "std.ip: insufficient workspace");
                return (fb);
        }

        if (a->s != NULL)
                retval = VSS_ResolveFirst(
                    p, a->s, a->valid_p ? a->p : "80",
                    AF_UNSPEC, SOCK_STREAM,
                    a->resolve ? 0 : AI_NUMERICHOST|AI_NUMERICSERV);

        if (retval != NULL)
                return (retval);

        WS_Reset(ctx->ws, sn);

        if (!a->valid_fallback)
                VRT_fail(ctx, "std.ip: conversion failed");

        return (fb);
}

VCL_REAL v_matchproto_(td_std_real)
vmod_real(VRT_CTX, struct VARGS(real) *a)
{
        VCL_REAL r;
        const char *p, *errtxt = NULL;
        int nargs;

        CHECK_OBJ_NOTNULL(ctx, VRT_CTX_MAGIC);

        nargs = a->valid_s + a->valid_integer + a->valid_boolean + a->valid_bytes +
            a->valid_duration + a->valid_time;

        if (!onearg(ctx, "real", nargs))
                return (0);

        if (a->valid_integer)
                return ((VCL_REAL)a->integer);

        if (a->valid_boolean)
                return ((VCL_REAL)(a->boolean ? 1 : 0));

        if (a->valid_bytes)
                return ((VCL_REAL)a->bytes);

        if (a->valid_duration)
                return ((VCL_REAL)a->duration);

        if (a->valid_time)
                return ((VCL_REAL)a->time);

        if (a->valid_s && a->s != NULL) {
                p = a->s;
                r = SF_Parse_Decimal(&p, 0, &errtxt);
                if (!errno && *p == '\0')
                        return (r);
        }

        if (a->valid_fallback)
                return (a->fallback);

        if (errtxt != NULL)
                VRT_fail(ctx, "std.real: conversion failed: %s", errtxt);
        else
                VRT_fail(ctx, "std.real: conversion failed");
        return (0);
}

VCL_REAL v_matchproto_(td_std_round)
vmod_round(VRT_CTX, VCL_REAL r)
{
        (void) ctx;
        return (round(r));
}

VCL_TIME v_matchproto_(td_std_time)
vmod_time(VRT_CTX, struct VARGS(time)* a)
{
        double r;
        int nargs;

        CHECK_OBJ_NOTNULL(ctx, VRT_CTX_MAGIC);

        nargs = a->valid_s + a->valid_real + a->valid_integer;

        if (!onearg(ctx, "time", nargs))
                return (0);

        if (a->valid_integer)
                return ((VCL_REAL)a->integer);

        if (a->valid_real)
                return ((VCL_REAL)a->real);

        if (a->valid_s && a->s != NULL) {
                r = VTIM_parse(a->s);
                if (r)
                        return (r);

                r = VNUM(a->s);

                if (!isnan(r) && r > 0)
                        return (r);
        }

        if (a->valid_fallback)
                return (a->fallback);

        VRT_fail(ctx, "std.time: conversion failed");
        return (0);
}

VCL_STRING v_matchproto_(td_std_strftime)
vmod_strftime(VRT_CTX, VCL_TIME t, VCL_STRING fmt)
{
        struct tm tm;
        time_t tt;
        size_t r;
        unsigned spc;
        char *s;

        CHECK_OBJ_NOTNULL(ctx, VRT_CTX_MAGIC);

        tt = (time_t)(intmax_t)t;
        if (gmtime_r(&tt, &tm) == NULL)
                return ("");

        spc = WS_ReserveAll(ctx->ws);
        s = WS_Reservation(ctx->ws);
        r = strftime(s, spc, fmt, &tm);
        if (r == 0) {
                WS_Release(ctx->ws, 0);
                return ("");
        }
        r++;
        WS_Release(ctx->ws, r);
        return (s);
}

		varnish-cache/vmod/vmod_std_conversions.c
0		/*-
1		* Copyright (c) 2010-2015 Varnish Software AS
2		* All rights reserved.
3		*
4		* Author: Poul-Henning Kamp <phk@FreeBSD.org>
5		*
6		* SPDX-License-Identifier: BSD-2-Clause
7		*
8		* Redistribution and use in source and binary forms, with or without
9		* modification, are permitted provided that the following conditions
10		* are met:
11		* 1. Redistributions of source code must retain the above copyright
12		* notice, this list of conditions and the following disclaimer.
13		* 2. Redistributions in binary form must reproduce the above copyright
14		* notice, this list of conditions and the following disclaimer in the
15		* documentation and/or other materials provided with the distribution.
16		*
17		* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18		* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19		* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20		* ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
21		* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22		* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23		* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24		* 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		*/
30
31		#include "config.h"
32
33		#include <ctype.h>
34		#include <string.h>
35		#include <stdlib.h>
36		#include <sys/socket.h>
37
38		#include <netdb.h>
39
40		#include "cache/cache.h"
41
42		#include "vnum.h"
43		#include "vsa.h"
44		#include "vss.h"
45		#include "vtim.h"
46		#include "vcc_std_if.h"
47
48		/*
49		* technically, as our VCL_INT is int64_t, its limits are INT64_MIN
50		* .. INT64_MAX.
51		*
52		* We redistrict to VRT_INTEGER_MIN .. VRT_INTEGER_MAX
53		*/
54
55		/* limited by using double for conversions */
56		#define VCL_BYTES_MAX ((INT64_C(1)<<53)-1)
57
58		static
59	16240	int onearg(VRT_CTX, const char *f, int nargs)
60		{
61	16240	if (nargs == 1)
62	16160	return (1);
63	160	VRT_fail(ctx, "std.%s: %s arguments", f,
64	80	nargs > 1 ? "too many" : "not enough");
65	80	return (0);
66	16240	}
67
68		/*
69		* not handling real arg isfinite() / nan() : caller error
70		* always trunc, never round
71		*/
72
73		VCL_DURATION v_matchproto_(td_std_duration)
74	2160	vmod_duration(VRT_CTX, struct VARGS(duration) *a)
75		{
76		double r;
77		int nargs;
78
79	2160	CHECK_OBJ_NOTNULL(ctx, VRT_CTX_MAGIC);
80
81	2160	nargs = a->valid_s + a->valid_real + a->valid_integer;
82
83	2160	if (!onearg(ctx, "duration", nargs))
84	0	return (0);
85
86	2160	if (a->valid_real)
87	240	return ((VCL_DURATION)a->real);
88
89	1920	if (a->valid_integer)
90	160	return ((VCL_DURATION)a->integer);
91
92	1760	if (a->valid_s) {
93	1760	r = VNUM_duration(a->s);
94	1760	if (!isnan(r))
95	960	return (r);
96	800	}
97
98	800	if (a->valid_fallback)
99	560	return (a->fallback);
100
101	240	VRT_fail(ctx, "std.duration: conversion failed");
102	240	return (0);
103	2160	}
104
105		VCL_BYTES v_matchproto_(td_std_bytes)
106	1280	vmod_bytes(VRT_CTX, struct VARGS(bytes) *a)
107		{
108		uintmax_t r;
109		VCL_REAL rr;
110		int nargs;
111		const char *errtxt;
112
113	1280	CHECK_OBJ_NOTNULL(ctx, VRT_CTX_MAGIC);
114
115	1280	nargs = a->valid_s + a->valid_real + a->valid_integer;
116
117	1280	if (!onearg(ctx, "bytes", nargs))
118	0	return (0);
119
120	1280	if (a->valid_s) {
121	960	errtxt = VNUM_2bytes(a->s, &r, 0);
122	960	if (errtxt == NULL && r <= VCL_BYTES_MAX)
123	440	return ((VCL_BYTES)r);
124	520	}
125
126	840	if (a->valid_real && !isnan(a->real) && a->real >= 0) {
127	200	rr = trunc(a->real);
128	200	if (rr <= (VCL_REAL)VCL_BYTES_MAX)
129	200	return ((VCL_BYTES)rr);
130	0	}
131
132	640	if (a->valid_integer && a->integer >= 0)
133	120	return ((VCL_BYTES)a->integer);
134
135	520	if (a->valid_fallback)
136	480	return (a->fallback);
137
138	40	VRT_fail(ctx, "std.bytes: conversion failed");
139	40	return (0);
140	1280	}
141
142		VCL_INT v_matchproto_(td_std_integer)
143	6080	vmod_integer(VRT_CTX, struct VARGS(integer) *a)
144		{
145	6080	const char p, errtxt = NULL;
146		double r, tmp;
147		int nargs;
148
149	6080	CHECK_OBJ_NOTNULL(ctx, VRT_CTX_MAGIC);
150
151	18240	nargs = a->valid_s + a->valid_boolean + a->valid_bytes +
152	12160	a->valid_duration + a->valid_real + a->valid_time;
153
154	6080	if (!onearg(ctx, "integer", nargs))
155	80	return (0);
156
157	6000	r = NAN;
158	6000	if (a->valid_boolean)
159	40	return (a->boolean ? 1 : 0);
160
161	5960	if (a->valid_bytes)
162	80	return (a->bytes);
163
164	5880	if (a->valid_s && a->s != NULL) {
165	4240	p = a->s;
166	4240	r = SF_Parse_Number(&p, 0, &errtxt);
167	4240	if (!errno && *p == '\0' && modf(r, &tmp) == 0.0)
168	3600	return ((VCL_INT)r);
169	640	r = NAN;
170	640	}
171
172	2280	if (a->valid_duration)
173	120	r = a->duration;
174
175	2280	if (a->valid_real)
176	360	r = a->real;
177
178	2280	if (a->valid_time)
179	240	r = a->time;
180
181	2280	if (!isnan(r)) {
182	720	r = trunc(r);
183	720	if (r >= VRT_INTEGER_MIN && r <= VRT_INTEGER_MAX)
184	640	return ((VCL_INT)r);
185	80	}
186
187	1640	if (a->valid_fallback)
188	1440	return (a->fallback);
189
190	200	if (errtxt != NULL)
191	80	VRT_fail(ctx, "std.integer: conversion failed: %s", errtxt);
192		else
193	120	VRT_fail(ctx, "std.integer: conversion failed");
194	200	return (0);
195	6080	}
196
197		VCL_IP
198	3640	vmod_ip(VRT_CTX, struct VARGS(ip) *a)
199		{
200		uintptr_t sn;
201		void *p;
202	3640	VCL_IP retval = NULL, fb = bogo_ip;
203
204	3640	CHECK_OBJ_NOTNULL(ctx, VRT_CTX_MAGIC);
205
206	3640	if (a->valid_fallback) {
207	960	if (a->fallback == NULL \|\| !VSA_Sane(a->fallback)) {
208	0	VRT_fail(ctx, "std.ip: invalid fallback");
209	0	return (fb);
210		}
211	960	fb = a->fallback;
212	960	}
213
214	3640	sn = WS_Snapshot(ctx->ws);
215	3640	p = WS_Alloc(ctx->ws, vsa_suckaddr_len);
216	3640	if (p == NULL) {
217	0	VRT_fail(ctx, "std.ip: insufficient workspace");
218	0	return (fb);
219		}
220
221	3640	if (a->s != NULL)
222	3600	retval = VSS_ResolveFirst(
223	3600	p, a->s, a->valid_p ? a->p : "80",
224		AF_UNSPEC, SOCK_STREAM,
225	3600	a->resolve ? 0 : AI_NUMERICHOST\|AI_NUMERICSERV);
226
227	3640	if (retval != NULL)
228	3080	return (retval);
229
230	560	WS_Reset(ctx->ws, sn);
231
232	560	if (!a->valid_fallback)
233	0	VRT_fail(ctx, "std.ip: conversion failed");
234
235	560	return (fb);
236	3640	}
237
238		VCL_REAL v_matchproto_(td_std_real)
239	2480	vmod_real(VRT_CTX, struct VARGS(real) *a)
240		{
241		VCL_REAL r;
242	2480	const char p, errtxt = NULL;
243		int nargs;
244
245	2480	CHECK_OBJ_NOTNULL(ctx, VRT_CTX_MAGIC);
246
247	7440	nargs = a->valid_s + a->valid_integer + a->valid_boolean + a->valid_bytes +
248	4960	a->valid_duration + a->valid_time;
249
250	2480	if (!onearg(ctx, "real", nargs))
251	0	return (0);
252
253	2480	if (a->valid_integer)
254	120	return ((VCL_REAL)a->integer);
255
256	2360	if (a->valid_boolean)
257	40	return ((VCL_REAL)(a->boolean ? 1 : 0));
258
259	2320	if (a->valid_bytes)
260	80	return ((VCL_REAL)a->bytes);
261
262	2240	if (a->valid_duration)
263	120	return ((VCL_REAL)a->duration);
264
265	2120	if (a->valid_time)
266	160	return ((VCL_REAL)a->time);
267
268	1960	if (a->valid_s && a->s != NULL) {
269	1680	p = a->s;
270	1680	r = SF_Parse_Decimal(&p, 0, &errtxt);
271	1680	if (!errno && *p == '\0')
272	1400	return (r);
273	280	}
274
275	560	if (a->valid_fallback)
276	360	return (a->fallback);
277
278	200	if (errtxt != NULL)
279	80	VRT_fail(ctx, "std.real: conversion failed: %s", errtxt);
280		else
281	120	VRT_fail(ctx, "std.real: conversion failed");
282	200	return (0);
283	2480	}
284
285		VCL_REAL v_matchproto_(td_std_round)
286	80	vmod_round(VRT_CTX, VCL_REAL r)
287		{
288	80	(void) ctx;
289	80	return (round(r));
290		}
291
292		VCL_TIME v_matchproto_(td_std_time)
293	4240	vmod_time(VRT_CTX, struct VARGS(time)* a)
294		{
295		double r;
296		int nargs;
297
298	4240	CHECK_OBJ_NOTNULL(ctx, VRT_CTX_MAGIC);
299
300	4240	nargs = a->valid_s + a->valid_real + a->valid_integer;
301
302	4240	if (!onearg(ctx, "time", nargs))
303	0	return (0);
304
305	4240	if (a->valid_integer)
306	80	return ((VCL_REAL)a->integer);
307
308	4160	if (a->valid_real)
309	360	return ((VCL_REAL)a->real);
310
311	3800	if (a->valid_s && a->s != NULL) {
312	3680	r = VTIM_parse(a->s);
313	3680	if (r)
314	1200	return (r);
315
316	2480	r = VNUM(a->s);
317
318	2480	if (!isnan(r) && r > 0)
319	560	return (r);
320	1920	}
321
322	2040	if (a->valid_fallback)
323	2040	return (a->fallback);
324
325	0	VRT_fail(ctx, "std.time: conversion failed");
326	0	return (0);
327	4240	}
328
329		VCL_STRING v_matchproto_(td_std_strftime)
330	880	vmod_strftime(VRT_CTX, VCL_TIME t, VCL_STRING fmt)
331		{
332		struct tm tm;
333		time_t tt;
334		size_t r;
335		unsigned spc;
336		char *s;
337
338	880	CHECK_OBJ_NOTNULL(ctx, VRT_CTX_MAGIC);
339
340	880	tt = (time_t)(intmax_t)t;
341	880	if (gmtime_r(&tt, &tm) == NULL)
342	0	return ("");
343
344	880	spc = WS_ReserveAll(ctx->ws);
345	880	s = WS_Reservation(ctx->ws);
346	880	r = strftime(s, spc, fmt, &tm);
347	880	if (r == 0) {
348	40	WS_Release(ctx->ws, 0);
349	40	return ("");
350		}
351	840	r++;
352	840	WS_Release(ctx->ws, r);
353	840	return (s);
354	880	}