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Add Luxray-like network time advancing and resetting.
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,57 @@ | ||
| /* This is free and unencumbered software released into the public domain. | ||
| Anyone is free to copy, modify, publish, use, compile, sell, or | ||
| distribute this software, either in source code form or as a compiled | ||
| binary, for any purpose, commercial or non-commercial, and by any | ||
| means. | ||
| In jurisdictions that recognize copyright laws, the author or authors | ||
| of this software dedicate any and all copyright interest in the | ||
| software to the public domain. We make this dedication for the benefit | ||
| of the public at large and to the detriment of our heirs and | ||
| successors. We intend this dedication to be an overt act of | ||
| relinquishment in perpetuity of all present and future rights to this | ||
| software under copyright law. | ||
| THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | ||
| EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | ||
| MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. | ||
| IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR | ||
| OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, | ||
| ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | ||
| OTHER DEALINGS IN THE SOFTWARE. | ||
| For more information, please refer to <https://unlicense.org> | ||
| Additionally, the ntp_packet struct uses code licensed under the BSD 3-clause. See LICENSE-THIRD-PARTY for more | ||
| information. */ | ||
|
|
||
| #define _BSD_SOURCE | ||
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| #include "ntp.h" | ||
| #include <string.h> | ||
| #include <arpa/inet.h> | ||
| #include <netdb.h> | ||
| #include <netinet/in.h> | ||
| #include <switch.h> | ||
| #include <sys/socket.h> | ||
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| time_t ntpGetTime() { | ||
| static const char* SERVER_NAME = "0.pool.ntp.org"; | ||
| int sockfd = -1; | ||
| sockfd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP); | ||
| struct hostent* server; | ||
| server = gethostbyname(SERVER_NAME); | ||
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| struct sockaddr_in serv_addr; | ||
| memset(&serv_addr, 0, sizeof(struct sockaddr_in)); | ||
| serv_addr.sin_family = AF_INET; | ||
| memcpy((char*)&serv_addr.sin_addr.s_addr, (char*)server->h_addr_list[0], 4); | ||
| serv_addr.sin_port = htons(123); | ||
| connect(sockfd, (struct sockaddr*)&serv_addr, sizeof(serv_addr)); | ||
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| ntp_packet packet; | ||
| memset(&packet, 0, sizeof(ntp_packet)); | ||
| packet.li_vn_mode = (0 << 6) | (4 << 3) | 3; // LI 0 | Client version 4 | Mode 3 | ||
| packet.txTm_s = htonl(NTP_TIMESTAMP_DELTA + time(NULL)); // Current networktime on the console | ||
| send(sockfd, (char*)&packet, sizeof(ntp_packet), 0); | ||
| (size_t)(recv(sockfd, (char*)&packet, sizeof(ntp_packet), 0)); | ||
| packet.txTm_s = ntohl(packet.txTm_s); | ||
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| return (time_t)(packet.txTm_s - NTP_TIMESTAMP_DELTA); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,59 @@ | ||
| /* This is free and unencumbered software released into the public domain. | ||
| Anyone is free to copy, modify, publish, use, compile, sell, or | ||
| distribute this software, either in source code form or as a compiled | ||
| binary, for any purpose, commercial or non-commercial, and by any | ||
| means. | ||
| In jurisdictions that recognize copyright laws, the author or authors | ||
| of this software dedicate any and all copyright interest in the | ||
| software to the public domain. We make this dedication for the benefit | ||
| of the public at large and to the detriment of our heirs and | ||
| successors. We intend this dedication to be an overt act of | ||
| relinquishment in perpetuity of all present and future rights to this | ||
| software under copyright law. | ||
| THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | ||
| EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | ||
| MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. | ||
| IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR | ||
| OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, | ||
| ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | ||
| OTHER DEALINGS IN THE SOFTWARE. | ||
| For more information, please refer to <https://unlicense.org> | ||
| Additionally, the ntp_packet struct uses code licensed under the BSD 3-clause. See LICENSE-THIRD-PARTY for more | ||
| information. */ | ||
|
|
||
| #pragma once | ||
|
|
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| #include <time.h> | ||
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| #define NTP_TIMESTAMP_DELTA 2208988800ull | ||
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| /* ------------- BEGIN BSD 3-CLAUSE LICENSED CODE-------------------- */ | ||
| // https://www.cisco.com/c/en/us/about/press/internet-protocol-journal/back-issues/table-contents-58/154-ntp.html | ||
| // Struct adapted from https://github.com/lettier/ntpclient , see LICENSE-THIRD-PARTY for more information. | ||
| typedef struct { | ||
| uint8_t li_vn_mode; // li: two bits, leap indicator. vn: three bits, protocol version number. mode: three bits, | ||
| // client mode. | ||
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| uint8_t stratum; // Stratum level of the local clock. | ||
| uint8_t poll; // Maximum interval between successive messages. | ||
| uint8_t precision; // Precision of the local clock. | ||
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| uint32_t rootDelay; // Total round trip delay time. | ||
| uint32_t rootDispersion; // Max error allowed from primary clock source. | ||
| uint32_t refId; // Reference clock identifier. | ||
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| uint32_t refTm_s; // Reference time-stamp seconds. | ||
| uint32_t refTm_f; // Reference time-stamp fraction of a second. | ||
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| uint32_t origTm_s; // Originate time-stamp seconds. | ||
| uint32_t origTm_f; // Originate time-stamp fraction of a second. | ||
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| uint32_t rxTm_s; // Received time-stamp seconds. | ||
| uint32_t rxTm_f; // Received time-stamp fraction of a second. | ||
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| uint32_t txTm_s; // Transmit time-stamp seconds. | ||
| uint32_t txTm_f; // Transmit time-stamp fraction of a second. | ||
| } ntp_packet; | ||
| /* ------------- END BSD 3-CLAUSE LICENSED CODE-------------------- */ | ||
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| time_t ntpGetTime(); |
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