1 /***************************************************************************
3 * Project ___| | | | _ \| |
5 * | (__| |_| | _ <| |___
6 * \___|\___/|_| \_\_____|
8 * Copyright (C) 1998 - 2011, Daniel Stenberg, <daniel@haxx.se>, et al.
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.
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.
18 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
19 * KIND, either express or implied.
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
37 #include <curl/curl.h>
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"
48 #define CHKSPEED_VERSION "1.0"
50 static size_t WriteCallback(void *ptr, size_t size, size_t nmemb, void *data)
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);
59 int main(int argc, char *argv[])
63 int prtall = 0, prtsep = 0, prttime = 0;
64 const char *url = URL_1M;
65 char *appname = argv[0];
68 /* parse input parameters */
69 for (argc--, argv++; *argv; argc--, argv++) {
70 if (strncasecmp(*argv, "-", 1) == 0) {
71 if (strncasecmp(*argv, "-H", 2) == 0) {
73 "\rUsage: %s [-m=1|2|5|10|20|50|100] [-t] [-x] [url]\n",
76 } else if (strncasecmp(*argv, "-V", 2) == 0) {
77 fprintf(stderr, "\r%s %s - %s\n",
78 appname, CHKSPEED_VERSION, curl_version());
80 } else if (strncasecmp(*argv, "-A", 2) == 0) {
82 } else if (strncasecmp(*argv, "-X", 2) == 0) {
84 } else if (strncasecmp(*argv, "-T", 2) == 0) {
86 } else if (strncasecmp(*argv, "-M=", 3) == 0) {
87 long m = strtol((*argv)+3, NULL, 10);
95 case 10: url = URL_10M;
97 case 20: url = URL_20M;
99 case 50: url = URL_50M;
101 case 100: url = URL_100M;
103 default: fprintf(stderr, "\r%s: invalid parameter %s\n",
108 fprintf(stderr, "\r%s: invalid or unknown option %s\n",
118 /* print separator line */
120 printf("-------------------------------------------------\n");
122 /* print localtime */
124 time_t t = time(NULL);
125 printf("Localtime: %s", ctime(&t));
129 curl_global_init(CURL_GLOBAL_ALL);
131 /* init the curl session */
132 curl_handle = curl_easy_init();
134 /* specify URL to get */
135 curl_easy_setopt(curl_handle, CURLOPT_URL, url);
137 /* send all data to this function */
138 curl_easy_setopt(curl_handle, CURLOPT_WRITEFUNCTION, WriteCallback);
140 /* some servers don't like requests that are made without a user-agent
141 field, so we provide one */
142 curl_easy_setopt(curl_handle, CURLOPT_USERAGENT,
143 "libcurl-speedchecker/" CHKSPEED_VERSION);
146 res = curl_easy_perform(curl_handle);
148 if(CURLE_OK == res) {
151 /* check for bytes downloaded */
152 res = curl_easy_getinfo(curl_handle, CURLINFO_SIZE_DOWNLOAD, &val);
153 if((CURLE_OK == res) && (val>0))
154 printf("Data downloaded: %0.0f bytes.\n", val);
156 /* check for total download time */
157 res = curl_easy_getinfo(curl_handle, CURLINFO_TOTAL_TIME, &val);
158 if((CURLE_OK == res) && (val>0))
159 printf("Total download time: %0.3f sec.\n", val);
161 /* check for average download speed */
162 res = curl_easy_getinfo(curl_handle, CURLINFO_SPEED_DOWNLOAD, &val);
163 if((CURLE_OK == res) && (val>0))
164 printf("Average download speed: %0.3f kbyte/sec.\n", val / 1024);
167 /* check for name resolution time */
168 res = curl_easy_getinfo(curl_handle, CURLINFO_NAMELOOKUP_TIME, &val);
169 if((CURLE_OK == res) && (val>0))
170 printf("Name lookup time: %0.3f sec.\n", val);
172 /* check for connect time */
173 res = curl_easy_getinfo(curl_handle, CURLINFO_CONNECT_TIME, &val);
174 if((CURLE_OK == res) && (val>0))
175 printf("Connect time: %0.3f sec.\n", val);
179 fprintf(stderr, "Error while fetching '%s' : %s\n",
180 url, curl_easy_strerror(res));
183 /* cleanup curl stuff */
184 curl_easy_cleanup(curl_handle);
186 /* we're done with libcurl, so clean it up */
187 curl_global_cleanup();