fake.cc
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1 /*
2  * Copyright (C) 1996-2017 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 
56 
57 static void
58 usage(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 
67 static void
68 process_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  /* fall thru to default */
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 
94 int
95 main(int argc, char *argv[])
96 {
98  int buflen = 0;
99 
100  setbuf(stdout, NULL);
101  setbuf(stderr, NULL);
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) != NULL) {
110  char *p;
111 
112  if ((p = strchr(buf, '\n')) != NULL) {
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 = NULL;
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 debug_enabled
Definition: debug.cc:13
#define PRId64
Definition: types.h:110
char * p
Definition: membanger.c:43
#define HELPER_INPUT_BUFFER
Definition: UserRequest.cc:26
int opterr
Definition: getopt.c:47
int getopt(int nargc, char *const *nargv, const char *ostr)
Definition: getopt.c:62
static int debug
Definition: tcp-banger3.c:105
int main(int argc, char *argv[])
Definition: fake.cc:91
void const char * buf
Definition: stub_helper.cc:16
static void process_options(int argc, char *argv[])
Definition: fake.cc:68
#define VERSION
int64_t strtoll(const char *nptr, char **endptr, int base)
Definition: strtoll.c:81
int optopt
Definition: getopt.c:48
char * my_program_name
Definition: fake.cc:55
#define NULL
Definition: types.h:166
static void usage(void)
Definition: fake.cc:58

 

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