1/***************************************************************************
2 *                                  _   _ ____  _
3 *  Project                     ___| | | |  _ \| |
4 *                             / __| | | | |_) | |
5 *                            | (__| |_| |  _ <| |___
6 *                             \___|\___/|_| \_\_____|
7 *
8 * Copyright (C) 1998 - 2011, Daniel Stenberg, <daniel@haxx.se>, et al.
9 *
10 * This software is licensed as described in the file COPYING, which
11 * you should have received as part of this distribution. The terms
12 * are also available at http://curl.haxx.se/docs/copyright.html.
13 *
14 * You may opt to use, copy, modify, merge, publish, distribute and/or sell
15 * copies of the Software, and permit persons to whom the Software is
16 * furnished to do so, under the terms of the COPYING file.
17 *
18 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
19 * KIND, either express or implied.
20 *
21 ***************************************************************************/
22/* Example source code to show how the callback function can be used to
23 * download data into a chunk of memory instead of storing it in a file.
24 * After successful download we use curl_easy_getinfo() calls to get the
25 * amount of downloaded bytes, the time used for the whole download, and
26 * the average download speed.
27 * On Linux you can create the download test files with:
28 * dd if=/dev/urandom of=file_1M.bin bs=1M count=1
29 *
30 */
31
32#include <stdio.h>
33#include <stdlib.h>
34#include <string.h>
35#include <time.h>
36
37#include <curl/curl.h>
38
39#define URL_BASE "http://speedtest.your.domain/"
40#define URL_1M   URL_BASE "file_1M.bin"
41#define URL_2M   URL_BASE "file_2M.bin"
42#define URL_5M   URL_BASE "file_5M.bin"
43#define URL_10M  URL_BASE "file_10M.bin"
44#define URL_20M  URL_BASE "file_20M.bin"
45#define URL_50M  URL_BASE "file_50M.bin"
46#define URL_100M URL_BASE "file_100M.bin"
47
48#define CHKSPEED_VERSION "1.0"
49
50static size_t WriteCallback(void *ptr, size_t size, size_t nmemb, void *data)
51{
52  /* we are not interested in the downloaded bytes itself,
53     so we only return the size we would have saved ... */
54  (void)ptr;  /* unused */
55  (void)data; /* unused */
56  return (size_t)(size * nmemb);
57}
58
59int main(int argc, char *argv[])
60{
61  CURL *curl_handle;
62  CURLcode res;
63  int prtsep = 0, prttime = 0;
64  const char *url = URL_1M;
65  char *appname = argv[0];
66
67  if (argc > 1) {
68    /* parse input parameters */
69    for (argc--, argv++; *argv; argc--, argv++) {
70      if (strncasecmp(*argv, "-", 1) == 0) {
71        if (strncasecmp(*argv, "-H", 2) == 0) {
72          fprintf(stderr,
73                  "\rUsage: %s [-m=1|2|5|10|20|50|100] [-t] [-x] [url]\n",
74                  appname);
75          exit(1);
76        } else if (strncasecmp(*argv, "-V", 2) == 0) {
77          fprintf(stderr, "\r%s %s - %s\n",
78                  appname, CHKSPEED_VERSION, curl_version());
79          exit(1);
80        } else if (strncasecmp(*argv, "-X", 2) == 0) {
81          prtsep = 1;
82        } else if (strncasecmp(*argv, "-T", 2) == 0) {
83          prttime = 1;
84        } else if (strncasecmp(*argv, "-M=", 3) == 0) {
85          long m = strtol((*argv)+3, NULL, 10);
86          switch(m) {
87            case   1: url = URL_1M;
88                      break;
89            case   2: url = URL_2M;
90                      break;
91            case   5: url = URL_5M;
92                      break;
93            case  10: url = URL_10M;
94                      break;
95            case  20: url = URL_20M;
96                      break;
97            case  50: url = URL_50M;
98                      break;
99            case 100: url = URL_100M;
100                      break;
101            default:  fprintf(stderr, "\r%s: invalid parameter %s\n",
102                              appname, *argv + 3);
103                      exit(1);
104          }
105        } else {
106          fprintf(stderr, "\r%s: invalid or unknown option %s\n",
107                  appname, *argv);
108          exit(1);
109        }
110      } else {
111        url = *argv;
112      }
113    }
114  }
115
116  /* print separator line */
117  if (prtsep) {
118    printf("-------------------------------------------------\n");
119  }
120  /* print localtime */
121  if (prttime) {
122    time_t t = time(NULL);
123    printf("Localtime: %s", ctime(&t));
124  }
125
126  /* init libcurl */
127  curl_global_init(CURL_GLOBAL_ALL);
128
129  /* init the curl session */
130  curl_handle = curl_easy_init();
131
132  /* specify URL to get */
133  curl_easy_setopt(curl_handle, CURLOPT_URL, url);
134
135  /* send all data to this function  */
136  curl_easy_setopt(curl_handle, CURLOPT_WRITEFUNCTION, WriteCallback);
137
138  /* some servers don't like requests that are made without a user-agent
139     field, so we provide one */
140  curl_easy_setopt(curl_handle, CURLOPT_USERAGENT,
141                   "libcurl-speedchecker/" CHKSPEED_VERSION);
142
143  /* get it! */
144  res = curl_easy_perform(curl_handle);
145
146  if(CURLE_OK == res) {
147    double val;
148
149    /* check for bytes downloaded */
150    res = curl_easy_getinfo(curl_handle, CURLINFO_SIZE_DOWNLOAD, &val);
151    if((CURLE_OK == res) && (val>0))
152      printf("Data downloaded: %0.0f bytes.\n", val);
153
154    /* check for total download time */
155    res = curl_easy_getinfo(curl_handle, CURLINFO_TOTAL_TIME, &val);
156    if((CURLE_OK == res) && (val>0))
157      printf("Total download time: %0.3f sec.\n", val);
158
159    /* check for average download speed */
160    res = curl_easy_getinfo(curl_handle, CURLINFO_SPEED_DOWNLOAD, &val);
161    if((CURLE_OK == res) && (val>0))
162      printf("Average download speed: %0.3f kbyte/sec.\n", val / 1024);
163
164  } else {
165    fprintf(stderr, "Error while fetching '%s' : %s\n",
166            url, curl_easy_strerror(res));
167  }
168
169  /* cleanup curl stuff */
170  curl_easy_cleanup(curl_handle);
171
172  /* we're done with libcurl, so clean it up */
173  curl_global_cleanup();
174
175  return 0;
176}
177