diff options
Diffstat (limited to 'plugins/FTPFileYM/curl/docs/examples/synctime.c')
| -rw-r--r-- | plugins/FTPFileYM/curl/docs/examples/synctime.c | 366 |
1 files changed, 0 insertions, 366 deletions
diff --git a/plugins/FTPFileYM/curl/docs/examples/synctime.c b/plugins/FTPFileYM/curl/docs/examples/synctime.c deleted file mode 100644 index 14d77de277..0000000000 --- a/plugins/FTPFileYM/curl/docs/examples/synctime.c +++ /dev/null @@ -1,366 +0,0 @@ -/*************************************************************************** - * _ _ ____ _ - * Project ___| | | | _ \| | - * / __| | | | |_) | | - * | (__| |_| | _ <| |___ - * \___|\___/|_| \_\_____| - * - * Copyright (C) 1998 - 2011, Daniel Stenberg, <daniel@haxx.se>, et al. - * - * This software is licensed as described in the file COPYING, which - * you should have received as part of this distribution. The terms - * are also available at http://curl.haxx.se/docs/copyright.html. - * - * You may opt to use, copy, modify, merge, publish, distribute and/or sell - * copies of the Software, and permit persons to whom the Software is - * furnished to do so, under the terms of the COPYING file. - * - * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY - * KIND, either express or implied. - * - ***************************************************************************/ -/* This example code only builds as-is on Windows. - * - * While Unix/Linux user, you do not need this software. - * You can achieve the same result as synctime using curl, awk and date. - * Set proxy as according to your network, but beware of proxy Cache-Control. - * - * To set your system clock, root access is required. - * # date -s "`curl -sI http://nist.time.gov/timezone.cgi?UTC/s/0 \ - * | awk -F': ' '/Date: / {print $2}'`" - * - * To view remote webserver date and time. - * $ curl -sI http://nist.time.gov/timezone.cgi?UTC/s/0 \ - * | awk -F': ' '/Date: / {print $2}' - * - * Synchronising your computer clock via Internet time server usually relies - * on DAYTIME, TIME, or NTP protocols. These protocols provide good accurate - * time synchronisation but it does not work very well through a - * firewall/proxy. Some adjustment has to be made to the firewall/proxy for - * these protocols to work properly. - * - * There is an indirect method. Since most webserver provide server time in - * their HTTP header, therefore you could synchronise your computer clock - * using HTTP protocol which has no problem with firewall/proxy. - * - * For this software to work, you should take note of these items. - * 1. Your firewall/proxy must allow your computer to surf internet. - * 2. Webserver system time must in sync with the NTP time server, - * or at least provide an accurate time keeping. - * 3. Webserver HTTP header does not provide the milliseconds units, - * so there is no way to get very accurate time. - * 4. This software could only provide an accuracy of +- a few seconds, - * as Round-Trip delay time is not taken into consideration. - * Compensation of network, firewall/proxy delay cannot be simply divide - * the Round-Trip delay time by half. - * 5. Win32 SetSystemTime() API will set your computer clock according to - * GMT/UTC time. Therefore your computer timezone must be properly set. - * 6. Webserver data should not be cached by the proxy server. Some - * webserver provide Cache-Control to prevent caching. - * - * References: - * http://tf.nist.gov/timefreq/service/its.htm - * http://tf.nist.gov/timefreq/service/firewall.htm - * - * Usage: - * This software will synchronise your computer clock only when you issue - * it with --synctime. By default, it only display the webserver's clock. - * - * Written by: Frank (contributed to libcurl) - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL THE AUTHOR OF THIS SOFTWARE BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - * - */ - -#include <stdio.h> -#include <time.h> -#ifndef __CYGWIN__ -#include <windows.h> -#endif -#include <curl/curl.h> - - -#define MAX_STRING 256 -#define MAX_STRING1 MAX_STRING+1 - -typedef struct -{ - char http_proxy[MAX_STRING1]; - char proxy_user[MAX_STRING1]; - char timeserver[MAX_STRING1]; -} conf_t; - -const char DefaultTimeServer[4][MAX_STRING1] = -{ - "http://nist.time.gov/timezone.cgi?UTC/s/0", - "http://www.google.com/", - "http://www.worldtimeserver.com/current_time_in_UTC.aspx", - "http://www.worldtime.com/cgi-bin/wt.cgi" -}; - -const char *DayStr[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"}; -const char *MthStr[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun", - "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"}; - -int ShowAllHeader; -int AutoSyncTime; -SYSTEMTIME SYSTime; -SYSTEMTIME LOCALTime; - -#define HTTP_COMMAND_HEAD 0 -#define HTTP_COMMAND_GET 1 - - -size_t SyncTime_CURL_WriteOutput(void *ptr, size_t size, size_t nmemb, - void *stream) -{ - fwrite(ptr, size, nmemb, stream); - return(nmemb*size); -} - -size_t SyncTime_CURL_WriteHeader(void *ptr, size_t size, size_t nmemb, - void *stream) -{ - int i, RetVal; - char TmpStr1[26], TmpStr2[26]; - - if (ShowAllHeader == 1) - fprintf(stderr, "%s", (char *)(ptr)); - - if (strncmp((char *)(ptr), "Date:", 5) == 0) { - if (ShowAllHeader == 0) - fprintf(stderr, "HTTP Server. %s", (char *)(ptr)); - - if (AutoSyncTime == 1) { - *TmpStr1 = 0; - *TmpStr2 = 0; - if (strlen((char *)(ptr)) > 50) /* Can prevent buffer overflow to - TmpStr1 & 2? */ - AutoSyncTime = 0; - else { - RetVal = sscanf ((char *)(ptr), "Date: %s %hu %s %hu %hu:%hu:%hu", - TmpStr1, &SYSTime.wDay, TmpStr2, &SYSTime.wYear, - &SYSTime.wHour, &SYSTime.wMinute, &SYSTime.wSecond); - - if (RetVal == 7) { - - SYSTime.wMilliseconds = 500; /* adjust to midpoint, 0.5 sec */ - for (i=0; i<12; i++) { - if (strcmp(MthStr[i], TmpStr2) == 0) { - SYSTime.wMonth = i+1; - break; - } - } - AutoSyncTime = 3; /* Computer clock will be adjusted */ - } - else { - AutoSyncTime = 0; /* Error in sscanf() fields conversion */ - } - } - } - } - - if (strncmp((char *)(ptr), "X-Cache: HIT", 12) == 0) { - fprintf(stderr, "ERROR: HTTP Server data is cached." - " Server Date is no longer valid.\n"); - AutoSyncTime = 0; - } - return(nmemb*size); -} - -void SyncTime_CURL_Init(CURL *curl, char *proxy_port, - char *proxy_user_password) -{ - if (strlen(proxy_port) > 0) - curl_easy_setopt(curl, CURLOPT_PROXY, proxy_port); - - if (strlen(proxy_user_password) > 0) - curl_easy_setopt(curl, CURLOPT_PROXYUSERPWD, proxy_user_password); - - /* Trick Webserver by claiming that you are using Microsoft WinXP SP2, IE6 */ - curl_easy_setopt(curl, CURLOPT_USERAGENT, - "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)"); - curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, *SyncTime_CURL_WriteOutput); - curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, *SyncTime_CURL_WriteHeader); -} - -int SyncTime_CURL_Fetch(CURL *curl, char *URL_Str, char *OutFileName, - int HttpGetBody) -{ - FILE *outfile; - CURLcode res; - - outfile = NULL; - if (HttpGetBody == HTTP_COMMAND_HEAD) - curl_easy_setopt(curl, CURLOPT_NOBODY, 1L); - else { - outfile = fopen(OutFileName, "wb"); - curl_easy_setopt(curl, CURLOPT_WRITEDATA, outfile); - } - - curl_easy_setopt(curl, CURLOPT_URL, URL_Str); - res = curl_easy_perform(curl); - if (outfile != NULL) - fclose(outfile); - return res; /* (CURLE_OK) */ -} - -void showUsage(void) -{ - fprintf(stderr, "SYNCTIME: Synchronising computer clock with time server" - " using HTTP protocol.\n"); - fprintf(stderr, "Usage : SYNCTIME [Option]\n"); - fprintf(stderr, "Options :\n"); - fprintf(stderr, " --server=WEBSERVER Use this time server instead" - " of default.\n"); - fprintf(stderr, " --showall Show all HTTP header.\n"); - fprintf(stderr, " --synctime Synchronising computer clock" - " with time server.\n"); - fprintf(stderr, " --proxy-user=USER[:PASS] Set proxy username and" - " password.\n"); - fprintf(stderr, " --proxy=HOST[:PORT] Use HTTP proxy on given" - " port.\n"); - fprintf(stderr, " --help Print this help.\n"); - fprintf(stderr, "\n"); - return; -} - -int conf_init(conf_t *conf) -{ - int i; - - *conf->http_proxy = 0; - for (i=0; i<MAX_STRING1; i++) - conf->proxy_user[i] = 0; /* Clean up password from memory */ - *conf->timeserver = 0; - return 1; -} - -int main(int argc, char *argv[]) -{ - CURL *curl; - conf_t conf[1]; - int OptionIndex; - struct tm *lt; - struct tm *gmt; - time_t tt; - time_t tt_local; - time_t tt_gmt; - double tzonediffFloat; - int tzonediffWord; - char timeBuf[61]; - char tzoneBuf[16]; - int RetValue; - - OptionIndex = 0; - ShowAllHeader = 0; /* Do not show HTTP Header */ - AutoSyncTime = 0; /* Do not synchronise computer clock */ - RetValue = 0; /* Successful Exit */ - conf_init(conf); - - if (argc > 1) { - while (OptionIndex < argc) { - if (strncmp(argv[OptionIndex], "--server=", 9) == 0) - snprintf(conf->timeserver, MAX_STRING, "%s", &argv[OptionIndex][9]); - - if (strcmp(argv[OptionIndex], "--showall") == 0) - ShowAllHeader = 1; - - if (strcmp(argv[OptionIndex], "--synctime") == 0) - AutoSyncTime = 1; - - if (strncmp(argv[OptionIndex], "--proxy-user=", 13) == 0) - snprintf(conf->proxy_user, MAX_STRING, "%s", &argv[OptionIndex][13]); - - if (strncmp(argv[OptionIndex], "--proxy=", 8) == 0) - snprintf(conf->http_proxy, MAX_STRING, "%s", &argv[OptionIndex][8]); - - if ((strcmp(argv[OptionIndex], "--help") == 0) || - (strcmp(argv[OptionIndex], "/?") == 0)) { - showUsage(); - return 0; - } - OptionIndex++; - } - } - - if (*conf->timeserver == 0) /* Use default server for time information */ - snprintf(conf->timeserver, MAX_STRING, "%s", DefaultTimeServer[0]); - - /* Init CURL before usage */ - curl_global_init(CURL_GLOBAL_ALL); - curl = curl_easy_init(); - if (curl) { - SyncTime_CURL_Init(curl, conf->http_proxy, conf->proxy_user); - - /* Calculating time diff between GMT and localtime */ - tt = time(0); - lt = localtime(&tt); - tt_local = mktime(lt); - gmt = gmtime(&tt); - tt_gmt = mktime(gmt); - tzonediffFloat = difftime(tt_local, tt_gmt); - tzonediffWord = (int)(tzonediffFloat/3600.0); - - if ((double)(tzonediffWord * 3600) == tzonediffFloat) - snprintf(tzoneBuf, 15, "%+03d'00'", tzonediffWord); - else - snprintf(tzoneBuf, 15, "%+03d'30'", tzonediffWord); - - /* Get current system time and local time */ - GetSystemTime(&SYSTime); - GetLocalTime(&LOCALTime); - snprintf(timeBuf, 60, "%s, %02d %s %04d %02d:%02d:%02d.%03d, ", - DayStr[LOCALTime.wDayOfWeek], LOCALTime.wDay, - MthStr[LOCALTime.wMonth-1], LOCALTime.wYear, - LOCALTime.wHour, LOCALTime.wMinute, LOCALTime.wSecond, - LOCALTime.wMilliseconds); - - fprintf(stderr, "Fetch: %s\n\n", conf->timeserver); - fprintf(stderr, "Before HTTP. Date: %s%s\n\n", timeBuf, tzoneBuf); - - /* HTTP HEAD command to the Webserver */ - SyncTime_CURL_Fetch(curl, conf->timeserver, "index.htm", - HTTP_COMMAND_HEAD); - - GetLocalTime(&LOCALTime); - snprintf(timeBuf, 60, "%s, %02d %s %04d %02d:%02d:%02d.%03d, ", - DayStr[LOCALTime.wDayOfWeek], LOCALTime.wDay, - MthStr[LOCALTime.wMonth-1], LOCALTime.wYear, - LOCALTime.wHour, LOCALTime.wMinute, LOCALTime.wSecond, - LOCALTime.wMilliseconds); - fprintf(stderr, "\nAfter HTTP. Date: %s%s\n", timeBuf, tzoneBuf); - - if (AutoSyncTime == 3) { - /* Synchronising computer clock */ - if (!SetSystemTime(&SYSTime)) { /* Set system time */ - fprintf(stderr, "ERROR: Unable to set system time.\n"); - RetValue = 1; - } - else { - /* Successfully re-adjusted computer clock */ - GetLocalTime(&LOCALTime); - snprintf(timeBuf, 60, "%s, %02d %s %04d %02d:%02d:%02d.%03d, ", - DayStr[LOCALTime.wDayOfWeek], LOCALTime.wDay, - MthStr[LOCALTime.wMonth-1], LOCALTime.wYear, - LOCALTime.wHour, LOCALTime.wMinute, LOCALTime.wSecond, - LOCALTime.wMilliseconds); - fprintf(stderr, "\nNew System's Date: %s%s\n", timeBuf, tzoneBuf); - } - } - - /* Cleanup before exit */ - conf_init(conf); - curl_easy_cleanup(curl); - } - return RetValue; -} |