/* * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved. * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved. * * Redistribution and use in source and binary forms, with or without modification, * are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, this list of * conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright notice, this list * of conditions and the following disclaimer in the documentation and/or other materials * provided with the distribution. * * 3. Neither the name of the copyright holder nor the names of its contributors may be used * to endorse or promote products derived from this software without specific prior written * permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "shcmd.h" #include "shell.h" #include "stdlib.h" #include "time.h" #include "los_typedef.h" #include "sys/stat.h" #include "securec.h" #if defined(__LP64__) #define timeval64 timeval #define settimeofday64 settimeofday #define gettimeofday64 gettimeofday #endif #define localtime64 localtime #define ctime64 ctime #define mktime64 mktime #define DATE_ERR_INFO 1 #define DATE_HELP_INFO 0 #define DATE_ERR (-1) #define DATE_OK 0 #define DATE_BASE_YEAR 1900 #define LEAPYEAR(y) (((y) % 4) == 0 && (((y) % 100) != 0 || ((y) % 400) == 0)) STATIC const INT32 g_monLengths[2][12] = { /* 2: 2 Column,Contains leap year; 12: 12 months */ {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}, {31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31} }; STATIC VOID OsCopyTm(struct tm *destTm, const struct tm *srcTm) { if (srcTm == NULL) { (VOID)memset_s(destTm, sizeof(struct tm), 0, sizeof(struct tm)); } else { destTm->tm_sec = srcTm->tm_sec; destTm->tm_min = srcTm->tm_min; destTm->tm_hour = srcTm->tm_hour; destTm->tm_mday = srcTm->tm_mday; destTm->tm_mon = srcTm->tm_mon; destTm->tm_year = srcTm->tm_year; destTm->tm_wday = srcTm->tm_wday; destTm->tm_yday = srcTm->tm_yday; destTm->tm_isdst = srcTm->tm_isdst; destTm->tm_gmtoff = srcTm->tm_gmtoff; destTm->tm_zone = srcTm->tm_zone; } } STATIC VOID OsCmdUsageDate(INT32 order) { if (order) { PRINTK("date: invalid option or parameter.\n"); PRINTK("Try 'date --help' for more information.\n"); return; } PRINTK("\nUsage: date [+FORMAT]\n"); PRINTK(" or: date [-s] [YY/MM/DD] [hh:mm:ss]\n"); PRINTK("Display the current time in the given FORMAT, or set the system date.\n"); PRINTK("FORMAT controls the output. Interpreted sequences are:\n"); PRINTK(" %%b The abbreviated month name according to the current locale.\n"); PRINTK(" %%B The full month name according to the current locale.\n"); PRINTK(" %%C The century number (year/100) as a 2-digit integer. (SU)\n"); PRINTK(" %%d The day of the month as a decimal number (range 01 to 31).\n"); PRINTK(" %%e Like %%d, the day of the month as a decimal number, \n"); PRINTK(" but a leading zero is replaced by a space.\n"); PRINTK(" %%h Equivalent to %%b. (SU)\n"); PRINTK(" %%H The hour as a decimal number using a 24-hour clock (range 00 to 23).\n"); PRINTK(" %%I The hour as a decimal number using a 12-hour clock (range 01 to 12).\n"); PRINTK(" %%j The day of the year as a decimal number (range 001 to 366).\n"); PRINTK(" %%k The hour (24-hour clock) as a decimal number (range 0 to 23); \n"); PRINTK(" single digits are preceded by a blank. (See also %H.) (TZ)\n"); PRINTK(" %%l The hour (12-hour clock) as a decimal number (range 1 to 12); \n"); PRINTK(" single digits are preceded by a blank. (See also %I.) (TZ)\n"); PRINTK(" %%m The month as a decimal number (range 01 to 12).\n"); PRINTK(" %%M The minute as a decimal number (range 00 to 59).\n"); PRINTK(" %%n A newline character. (SU)\n"); PRINTK(" %%p Either \"AM\" or \"PM\" according to the given time value, \n"); PRINTK(" or the corresponding strings for the current locale.\n"); PRINTK(" Noon is treated as \"PM\" and midnight as \"AM\".\n"); PRINTK(" %%P Like %%p but in lowercase: \"am\" or \"pm\" \n"); PRINTK(" or a corresponding string for the current locale. (GNU)\n"); PRINTK(" %%s The number of seconds since the Epoch, that is,\n"); PRINTK(" since 1970-01-01 00:00:00 UTC. (TZ)\n"); PRINTK(" %%S The second as a decimal number (range 00 to 60).\n"); PRINTK(" (The range is up to 60 to allow for occasional leap seconds.)\n"); PRINTK(" %%t A tab character. (SU)\n"); PRINTK(" %%y The year as a decimal number without a century (range 00 to 99).\n"); PRINTK(" %%Y The year as a decimal number including the century.\n"); PRINTK(" %%%% A literal '%%' character.\n"); PRINTK("\nExamples:\n"); PRINTK("Set system date (2017-01-01)\n"); PRINTK("$ date -s 20170101\n"); PRINTK("Set system time (12:00:00)\n"); PRINTK("$ date -s 12:00:00\n"); PRINTK("Show the time with format Year-Month-Day\n"); PRINTK("$ date +%%Y-%%m-%%d\n"); } STATIC INT32 OsStrToTm(const CHAR *str, struct tm *tm) { CHAR *ret = NULL; UINT32 strLen = strlen(str); if (strLen == 8) { /* 8:Time format string length, such as hh:mm:ss or yyyymmdd */ if (str[2] == ':') { /* 2:Index of Eigenvalues */ ret = strptime(str, "%H:%M:%S", tm); } else { ret = strptime(str, "%Y%m%d", tm); } } else if (strLen == 10) { /* 10:Time format string length,such as yyyy/mm/dd */ ret = strptime(str, "%Y/%m/%d", tm); } else if (strLen == 5) { /* 5:Time format string length,such as hh:mm or mm/dd */ if (str[2] == ':') { /* 2:Index of Eigenvalues */ ret = strptime(str, "%H:%M", tm); } else if (str[2] == '/') { /* 2:Index of Eigenvalues */ ret = strptime(str, "%m/%d", tm); } } else if (strLen == 7) { /* 7:Time format string length,such as yyyy/mm */ if (str[4] == '/') { /* 4:Index of Eigenvalues */ ret = strptime(str, "%Y/%m", tm); } } if (tm->tm_year < 70) { /* 70:the year is starting in 1970,tm_year must be greater than 70 */ PRINTK("\nUsage: date -s set system time starting from 1970.\n"); return DATE_ERR; } if (tm->tm_mday > g_monLengths[(INT32)LEAPYEAR(tm->tm_year + DATE_BASE_YEAR)][tm->tm_mon]) { return DATE_ERR; } if ((tm->tm_sec < 0) || (tm->tm_sec > 59)) { /* Seconds (0-59), leap seconds shall not be used when set time. */ return DATE_ERR; } return (ret == NULL) ? DATE_ERR : DATE_OK; } STATIC INT32 OsFormatPrintTime(const CHAR *formatStr) { CHAR timebuf[SHOW_MAX_LEN] = {0}; struct tm *tm = NULL; struct timeval64 nowTime = {0}; if (strlen(formatStr) < 2) { /* 2:check format string length */ OsCmdUsageDate(DATE_ERR_INFO); return DATE_ERR; } if (gettimeofday64(&nowTime, NULL)) { return DATE_ERR; } tm = localtime64(&nowTime.tv_sec); if (tm == NULL) { return DATE_ERR; } if (strftime(timebuf, SHOW_MAX_LEN - 1, formatStr + 1, tm)) { PRINTK("%s\n", timebuf); } else { OsCmdUsageDate(DATE_ERR_INFO); return DATE_ERR; } return DATE_OK; } STATIC INT32 OsDateSetTime(const CHAR *timeStr) { struct tm tm = {0}; struct timeval64 nowTime = {0}; struct timeval64 setTime = {0}; if (gettimeofday64(&nowTime, NULL)) { PRINTK("Setting time failed...\n"); return DATE_ERR; } setTime.tv_usec = nowTime.tv_usec; OsCopyTm(&tm, localtime64(&nowTime.tv_sec)); if (OsStrToTm(timeStr, &tm)) { OsCmdUsageDate(DATE_ERR_INFO); return DATE_ERR; } setTime.tv_sec = mktime64(&tm); if (settimeofday64(&setTime, NULL)) { PRINTK("setting time failed...\n"); return DATE_ERR; } return DATE_OK; } #ifdef LOSCFG_FS_VFS STATIC INT32 OsViewFileTime(const CHAR *filename) { #define BUFFER_SIZE 26 /* The buffer size is equal to the size used by the asctime_r interface */ struct stat statBuf = {0}; CHAR *fullpath = NULL; INT32 ret; CHAR buf[BUFFER_SIZE]; CHAR *shellWorkingDirectory = OsShellGetWorkingDirtectory(); ret = vfs_normalize_path(shellWorkingDirectory, filename, &fullpath); if (ret < 0) { set_errno(-ret); perror("date error"); return DATE_ERR; } if (stat(fullpath, &statBuf) != 0) { OsCmdUsageDate(DATE_ERR_INFO); free(fullpath); return DATE_ERR; } PRINTK("%s\n", ctime_r(&(statBuf.st_mtim.tv_sec), buf)); free(fullpath); return DATE_OK; } #endif INT32 OsShellCmdDate(INT32 argc, const CHAR **argv) { struct timeval64 nowTime = {0}; if (argc == 1) { /* 1:count of parameters */ if (gettimeofday64(&nowTime, NULL)) { return DATE_ERR; } PRINTK("%s\n", ctime64(&nowTime.tv_sec)); return DATE_OK; } if (argc == 2) { /* 2:count of parameters */ if (argv == NULL) { OsCmdUsageDate(DATE_HELP_INFO); return DATE_ERR; } if (!(strcmp(argv[1], "--help"))) { OsCmdUsageDate(DATE_HELP_INFO); return DATE_OK; } if (!(strncmp(argv[1], "+", 1))) { return OsFormatPrintTime(argv[1]); } } if (argc > 2) { /* 2:count of parameters */ if (argv == NULL) { OsCmdUsageDate(DATE_HELP_INFO); return DATE_ERR; } if (!(strcmp(argv[1], "-s"))) { return OsDateSetTime(argv[2]); /* 2:index of parameters */ } else if (!(strcmp(argv[1], "-r"))) { #ifdef LOSCFG_FS_VFS return OsViewFileTime(argv[2]); /* 2:index of parameters */ #endif } } OsCmdUsageDate(DATE_ERR_INFO); return DATE_OK; } SHELLCMD_ENTRY(date_shellcmd, CMD_TYPE_STD, "date", XARGS, (CmdCallBackFunc)OsShellCmdDate);