fake.cc
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1/*
2 * Copyright (C) 1996-2022 The Squid Software Foundation and contributors
3 *
4 * Squid software is distributed under GPLv2+ license and includes
5 * contributions from numerous individuals and organizations.
6 * Please see the COPYING and CONTRIBUTORS files for details.
7 */
8
9/*
10 * Copyright (c) 2009-2014, Treehouse Networks Ltd. New Zealand
11 * All rights reserved.
12 *
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
15 * are met:
16 *
17 * 1. Redistributions of source code must retain the above copyright
18 * notice, this list of conditions and the following disclaimer.
19 *
20 * 2. Redistributions in binary form must reproduce the above copyright
21 * notice, this list of conditions and the following disclaimer in the
22 * documentation and/or other materials provided with the distribution.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
25 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
26 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
27 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
28 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
29 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
30 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
31 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
32 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
34 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
35 * POSSIBILITY OF SUCH DAMAGE.
36 */
37
38/*
39 * Example URL re-writer program for Squid.
40 *
41 * This code gets the url and returns it. No re-writing is done.
42 * It is intended for testing use and as a base for further implementation.
43 */
44
45#include "squid.h"
47
48#include <cstring>
49
55char *my_program_name = nullptr;
56
57static void
58usage(void)
59{
60 fprintf(stderr,
61 "Usage: %s [-d] [-v] [-h]\n"
62 " -d enable debugging.\n"
63 " -h this message\n\n",
65}
66
67static void
68process_options(int argc, char *argv[])
69{
70 int opt, had_error = 0;
71
72 opterr = 0;
73 while (-1 != (opt = getopt(argc, argv, "hd"))) {
74 switch (opt) {
75 case 'd':
76 debug_enabled = 1;
77 break;
78 case 'h':
79 usage();
80 exit(EXIT_SUCCESS);
81 case '?':
82 opt = optopt;
83 /* [[fallthrough]] */
84 default:
85 fprintf(stderr, "unknown option: -%c. Exiting\n", opt);
86 usage();
87 had_error = 1;
88 }
89 }
90 if (had_error)
91 exit(EXIT_FAILURE);
92}
93
94int
95main(int argc, char *argv[])
96{
97 char buf[HELPER_INPUT_BUFFER];
98 int buflen = 0;
99
100 setbuf(stdout, nullptr);
101 setbuf(stderr, nullptr);
102
103 my_program_name = argv[0];
104
105 process_options(argc, argv);
106
107 debug("%s " VERSION " " SQUID_BUILD_INFO " starting up...\n", my_program_name);
108
109 while (fgets(buf, HELPER_INPUT_BUFFER, stdin) != nullptr) {
110 char *p;
111
112 if ((p = strchr(buf, '\n')) != nullptr) {
113 *p = '\0'; /* strip \n */
114 buflen = p - buf; /* length is known already */
115 } else
116 buflen = strlen(buf); /* keep this so we only scan the buffer for \0 once per loop */
117
118 debug("Got %d bytes '%s' from Squid\n", buflen, buf);
119
120 p = nullptr;
121 int64_t channelId = strtoll(buf, &p, 10);
122 if (*p != ' ') {
123 /* send 'no-change' result back to Squid in non-concurrent format */
124 fprintf(stdout,"ERR\n");
125 } else {
126 /* send 'no-change' result back to Squid in concurrent format */
127 fprintf(stdout, "%" PRId64 " ERR\n", channelId);
128 }
129 }
130 debug("%s " VERSION " " SQUID_BUILD_INFO " shutting down...\n", my_program_name);
131 return EXIT_SUCCESS;
132}
133
int main(int argc, char *argv[])
Definition: fake.cc:91
#define HELPER_INPUT_BUFFER
Definition: UserRequest.cc:24
int debug_enabled
Definition: debug.cc:13
int optopt
Definition: getopt.c:49
int getopt(int nargc, char *const *nargv, const char *ostr)
Definition: getopt.c:62
int opterr
Definition: getopt.c:47
static void process_options(int argc, char *argv[])
Definition: fake.cc:68
char * my_program_name
Definition: fake.cc:55
static void usage(void)
Definition: fake.cc:58
#define VERSION
int64_t strtoll(const char *nptr, char **endptr, int base)
Definition: strtoll.c:61
static int debug
Definition: tcp-banger3.c:105
#define PRId64
Definition: types.h:110

 

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