aboutsummaryrefslogtreecommitdiff
path: root/docs/examples/chkspeed.c
blob: 7d2a3da613fd3de4b88f76a8036f5fffb136d40f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
/*****************************************************************************
 *                                  _   _ ____  _
 *  Project                     ___| | | |  _ \| |
 *                             / __| | | | |_) | |
 *                            | (__| |_| |  _ <| |___
 *                             \___|\___/|_| \_\_____|
 *
 * $Id$
 *
 * Example source code to show how the callback function can be used to
 * download data into a chunk of memory instead of storing it in a file.
 * After successful download we use curl_easy_getinfo() calls to get the
 * amount of downloaded bytes, the time used for the whole download, and
 * the average download speed.
 * On Linux you can create the download test files with:
 * dd if=/dev/urandom of=file_1M.bin bs=1M count=1
 *
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>

#include <curl/curl.h>
#include <curl/types.h>
#include <curl/easy.h>

#define URL_BASE "http://speedtest.your.domain/"
#define URL_1M   URL_BASE "file_1M.bin"
#define URL_2M   URL_BASE "file_2M.bin"
#define URL_5M   URL_BASE "file_5M.bin"
#define URL_10M  URL_BASE "file_10M.bin"
#define URL_20M  URL_BASE "file_20M.bin"
#define URL_50M  URL_BASE "file_50M.bin"
#define URL_100M URL_BASE "file_100M.bin"

#define CHKSPEED_VERSION "1.0"

static size_t WriteCallback(void *ptr, size_t size, size_t nmemb, void *data)
{
  /* we are not interested in the downloaded bytes itself,
     so we only return the size we would have saved ... */  
  return (size_t)(size * nmemb);
}

int main(int argc, char *argv[])
{
  CURL *curl_handle;
  CURLcode res;
  int prtsep = 0, prttime = 0;
  char *url = URL_1M;
  char *appname = argv[0];

  if (argc > 1) {
    /* parse input parameters */
    for (argc--, argv++; *argv; argc--, argv++) {
      if (strncasecmp(*argv, "-", 1) == 0) {
        if (strncasecmp(*argv, "-H", 2) == 0) {
          fprintf(stderr, 
                  "\rUsage: %s [-m=1|2|5|10|20|50|100] [-t] [-x] [url]\n",
                  appname);
          exit(1);
        } else if (strncasecmp(*argv, "-V", 2) == 0) {
          fprintf(stderr, "\r%s %s - %s\n",
                  appname, CHKSPEED_VERSION, curl_version());
          exit(1);
        } else if (strncasecmp(*argv, "-X", 2) == 0) {
          prtsep = 1;
        } else if (strncasecmp(*argv, "-T", 2) == 0) {
          prttime = 1;
        } else if (strncasecmp(*argv, "-M=", 3) == 0) {
          int m = atoi(*argv + 3);
          switch(m) {
            case   1: url = URL_1M;
                      break;
            case   2: url = URL_2M;
                      break;
            case   5: url = URL_5M;
                      break;
            case  10: url = URL_10M;
                      break;
            case  20: url = URL_20M;
                      break;
            case  50: url = URL_50M;
                      break;
            case 100: url = URL_100M;
                      break;
            default:  fprintf(stderr, "\r%s: invalid parameter %s\n",
                              appname, *argv + 3);
                      exit(1);
          }
        } else {
          fprintf(stderr, "\r%s: invalid or unknown option %s\n",
                  appname, *argv);
          exit(1);
        }
      } else {
        url = *argv;
      }
    }
  }

  /* print separator line */
  if (prtsep) {
    printf("-------------------------------------------------\n");
  }
  /* print localtime */
  if (prttime) {
    time_t t = time(NULL);
    printf("Localtime: %s", ctime(&t));
  }

  /* init libcurl */
  curl_global_init(CURL_GLOBAL_ALL);

  /* init the curl session */
  curl_handle = curl_easy_init();

  /* specify URL to get */
  curl_easy_setopt(curl_handle, CURLOPT_URL, url);

  /* send all data to this function  */
  curl_easy_setopt(curl_handle, CURLOPT_WRITEFUNCTION, WriteCallback);

  /* some servers don't like requests that are made without a user-agent
     field, so we provide one */
  curl_easy_setopt(curl_handle, CURLOPT_USERAGENT,
                   "libcurl-speedchecker/" CHKSPEED_VERSION);

  /* get it! */
  res = curl_easy_perform(curl_handle);

  if(CURLE_OK == res) {
    double val;

    /* check for bytes downloaded */
    res = curl_easy_getinfo(curl_handle, CURLINFO_SIZE_DOWNLOAD, &val);
    if((CURLE_OK == res) && val)
      printf("Data downloaded: %0.0f bytes.\n", val);

    /* check for total download time */
    res = curl_easy_getinfo(curl_handle, CURLINFO_TOTAL_TIME, &val);
    if((CURLE_OK == res) && val)
      printf("Total download time: %0.3f sec.\n", val);

    /* check for average download speed */
    res = curl_easy_getinfo(curl_handle, CURLINFO_SPEED_DOWNLOAD, &val);
    if((CURLE_OK == res) && val)
      printf("Average download speed: %0.3f kbyte/sec.\n", val / 1024);

  } else {
    fprintf(stderr, "Error while fetching '%s' : %s\n",
            url, curl_easy_strerror(res));
  }

  /* cleanup curl stuff */
  curl_easy_cleanup(curl_handle);

  /* we're done with libcurl, so clean it up */
  curl_global_cleanup();

  return 0;
}