GCOV - Varnish Cache


/*-
 * Copyright (c) 2006 Verdens Gang AS
 * Copyright (c) 2006-2015 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.
 *
 * Runtime support for compiled VCL programs, regexps
 */

#include "config.h"

#include <ctype.h>

#include "cache_varnishd.h"
#include "vcc_interface.h"

void
VPI_re_init(vre_t **rep, const char *re)
{
        vre_t *t;
        int error, erroroffset;

        /* This was already check-compiled by the VCL compiler */
        t = VRE_compile(re, 0, &error, &erroroffset,
            cache_param->pcre2_jit_compilation);
        AN(t);
        *rep = t;
}

void
VPI_re_fini(vre_t *rep)
{
        vre_t *vv;

        vv = rep;
        if (rep != NULL)
                VRE_free(&vv);
}

static void
re_fail(VRT_CTX, const char *pfx, int res)
{
        struct vsb vsb[1];
        char errbuf[VRE_ERROR_LEN];

        assert(res < VRE_ERROR_NOMATCH);
        AN(VSB_init(vsb, errbuf, sizeof errbuf));
        AZ(VRE_error(vsb, res));
        AZ(VSB_finish(vsb));
        VSB_fini(vsb);
        VRT_fail(ctx, "%sRegexp matching failed: %s", pfx, errbuf);
}

VCL_BOOL
VRT_re_match(VRT_CTX, const char *s, VCL_REGEX re)
{
        int i;

        CHECK_OBJ_NOTNULL(ctx, VRT_CTX_MAGIC);
        if (s == NULL)
                s = "";
        AN(re);
        i = VRE_match(re, s, 0, 0, &cache_param->vre_limits);
        if (i >= 0)
                return (1);
        if (i < VRE_ERROR_NOMATCH)
                re_fail(ctx, "", i);
        return (0);
}

VCL_STRING
VRT_regsub(VRT_CTX, int all, VCL_STRING str, VCL_REGEX re, VCL_STRING sub)
{
        struct vsb vsb[1];
        const char *res;
        uintptr_t snap;
        int i;

        CHECK_OBJ_NOTNULL(ctx, VRT_CTX_MAGIC);
        AN(re);
        if (str == NULL)
                str = "";
        if (sub == NULL)
                sub = "";

        snap = WS_Snapshot(ctx->ws);
        WS_VSB_new(vsb, ctx->ws);
        i = VRE_sub(re, str, sub, vsb, &cache_param->vre_limits, all);
        res = WS_VSB_finish(vsb, ctx->ws, NULL);

        if (i < VRE_ERROR_NOMATCH)
                re_fail(ctx, "regsub: ", i);
        else if (res == NULL)
                VRT_fail(ctx, "regsub: Out of workspace");
        else if (i > 0)
                return (res);
        WS_Reset(ctx->ws, snap);
        return (str);
}

		varnish-cache/bin/varnishd/cache/cache_vrt_re.c
0		/*-
1		* Copyright (c) 2006 Verdens Gang AS
2		* Copyright (c) 2006-2015 Varnish Software AS
3		* All rights reserved.
4		*
5		* Author: Poul-Henning Kamp <phk@phk.freebsd.dk>
6		*
7		* SPDX-License-Identifier: BSD-2-Clause
8		*
9		* Redistribution and use in source and binary forms, with or without
10		* modification, are permitted provided that the following conditions
11		* are met:
12		* 1. Redistributions of source code must retain the above copyright
13		* notice, this list of conditions and the following disclaimer.
14		* 2. Redistributions in binary form must reproduce the above copyright
15		* notice, this list of conditions and the following disclaimer in the
16		* documentation and/or other materials provided with the distribution.
17		*
18		* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19		* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20		* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21		* ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
22		* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23		* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24		* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25		* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26		* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27		* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28		* SUCH DAMAGE.
29		*
30		* Runtime support for compiled VCL programs, regexps
31		*/
32
33		#include "config.h"
34
35		#include <ctype.h>
36
37		#include "cache_varnishd.h"
38		#include "vcc_interface.h"
39
40		void
41	150480	VPI_re_init(vre_t *rep, const char re)
42		{
43		vre_t *t;
44		int error, erroroffset;
45
46		/* This was already check-compiled by the VCL compiler */
47	300960	t = VRE_compile(re, 0, &error, &erroroffset,
48	150480	cache_param->pcre2_jit_compilation);
49	150480	AN(t);
50	150480	*rep = t;
51	150480	}
52
53		void
54	9366	VPI_re_fini(vre_t *rep)
55		{
56		vre_t *vv;
57
58	9366	vv = rep;
59	9366	if (rep != NULL)
60	9366	VRE_free(&vv);
61	9366	}
62
63		static void
64	40	re_fail(VRT_CTX, const char *pfx, int res)
65		{
66		struct vsb vsb[1];
67		char errbuf[VRE_ERROR_LEN];
68
69	40	assert(res < VRE_ERROR_NOMATCH);
70	40	AN(VSB_init(vsb, errbuf, sizeof errbuf));
71	40	AZ(VRE_error(vsb, res));
72	40	AZ(VSB_finish(vsb));
73	40	VSB_fini(vsb);
74	40	VRT_fail(ctx, "%sRegexp matching failed: %s", pfx, errbuf);
75	40	}
76
77		VCL_BOOL
78	210065	VRT_re_match(VRT_CTX, const char *s, VCL_REGEX re)
79		{
80		int i;
81
82	210065	CHECK_OBJ_NOTNULL(ctx, VRT_CTX_MAGIC);
83	210065	if (s == NULL)
84	99280	s = "";
85	210065	AN(re);
86	210065	i = VRE_match(re, s, 0, 0, &cache_param->vre_limits);
87	210065	if (i >= 0)
88	7960	return (1);
89	202105	if (i < VRE_ERROR_NOMATCH)
90	40	re_fail(ctx, "", i);
91	202105	return (0);
92	210065	}
93
94		VCL_STRING
95	2480	VRT_regsub(VRT_CTX, int all, VCL_STRING str, VCL_REGEX re, VCL_STRING sub)
96		{
97		struct vsb vsb[1];
98		const char *res;
99		uintptr_t snap;
100		int i;
101
102	2480	CHECK_OBJ_NOTNULL(ctx, VRT_CTX_MAGIC);
103	2480	AN(re);
104	2480	if (str == NULL)
105	120	str = "";
106	2480	if (sub == NULL)
107	40	sub = "";
108
109	2480	snap = WS_Snapshot(ctx->ws);
110	2480	WS_VSB_new(vsb, ctx->ws);
111	2480	i = VRE_sub(re, str, sub, vsb, &cache_param->vre_limits, all);
112	2480	res = WS_VSB_finish(vsb, ctx->ws, NULL);
113
114	2480	if (i < VRE_ERROR_NOMATCH)
115	0	re_fail(ctx, "regsub: ", i);
116	2480	else if (res == NULL)
117	0	VRT_fail(ctx, "regsub: Out of workspace");
118	2480	else if (i > 0)
119	1480	return (res);
120	1000	WS_Reset(ctx->ws, snap);
121	1000	return (str);
122	2480	}