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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (c) 2017-2018 Western Digital Corporation or its affiliates.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*
* Author: Jeff Lien <jeff.lien@wdc.com>,
*/
#include <errno.h>
#include <string.h>
#include <unistd.h>
#include <time.h>
#include "nvme.h"
#include "libnvme.h"
#include "nvme-print.h"
#include "wdc-utils.h"
int wdc_UtilsSnprintf(char *buffer, unsigned int sizeOfBuffer, const char *format, ...)
{
int res = 0;
va_list vArgs;
va_start(vArgs, format);
res = vsnprintf(buffer, sizeOfBuffer, format, vArgs);
va_end(vArgs);
return res;
}
void wdc_UtilsDeleteCharFromString(char *buffer, int buffSize, char charToRemove)
{
int i = 0;
int count = 0;
if (!buffer || !buffSize)
return;
/*
* Traverse the given string. If current character is not charToRemove,
* then place it at index count++
*/
for (i = 0; ((i < buffSize) && (buffer[i] != '\0')); i++) {
if (buffer[i] != charToRemove)
buffer[count++] = buffer[i];
}
buffer[count] = '\0';
}
int wdc_UtilsGetTime(PUtilsTimeInfo timeInfo)
{
time_t currTime;
struct tm currTimeInfo;
if (!timeInfo)
return WDC_STATUS_INVALID_PARAMETER;
tzset();
time(&currTime);
localtime_r(&currTime, &currTimeInfo);
timeInfo->year = currTimeInfo.tm_year + 1900;
timeInfo->month = currTimeInfo.tm_mon + 1;
timeInfo->dayOfWeek = currTimeInfo.tm_wday;
timeInfo->dayOfMonth = currTimeInfo.tm_mday;
timeInfo->hour = currTimeInfo.tm_hour;
timeInfo->minute = currTimeInfo.tm_min;
timeInfo->second = currTimeInfo.tm_sec;
timeInfo->msecs = 0;
timeInfo->isDST = currTimeInfo.tm_isdst;
#if defined(__GLIBC__) && !defined(__UCLIBC__) && !defined(__MUSL__)
timeInfo->zone = -currTimeInfo.tm_gmtoff / 60;
#else
timeInfo->zone = -1 * (timezone / SECONDS_IN_MIN);
#endif
return WDC_STATUS_SUCCESS;
}
int wdc_UtilsCreateDir(char *path)
{
int retStatus;
int status = WDC_STATUS_SUCCESS;
if (!path)
return WDC_STATUS_INVALID_PARAMETER;
retStatus = mkdir(path, 0x999);
if (retStatus < 0) {
if (errno == EEXIST)
status = WDC_STATUS_DIR_ALREADY_EXISTS;
else if (errno == ENOENT)
status = WDC_STATUS_PATH_NOT_FOUND;
else
status = WDC_STATUS_CREATE_DIRECTORY_FAILED;
}
return status;
}
int wdc_WriteToFile(char *fileName, char *buffer, unsigned int bufferLen)
{
int status = WDC_STATUS_SUCCESS;
FILE *file;
size_t bytesWritten = 0;
file = fopen(fileName, "ab+");
if (!file) {
status = WDC_STATUS_UNABLE_TO_OPEN_FILE;
goto end;
}
bytesWritten = fwrite(buffer, 1, bufferLen, file);
if (bytesWritten != bufferLen)
status = WDC_STATUS_UNABLE_TO_WRITE_ALL_DATA;
end:
if (file)
fclose(file);
return status;
}
/**
* Compares the strings ignoring their cases.
*
* @param pcSrc Points to a null terminated string for comparing.
* @param pcDst Points to a null terminated string for comparing.
*
* @returns zero if the string matches or
* 1 if the pcSrc string is lexically higher than pcDst or
* -1 if the pcSrc string is lexically lower than pcDst.
*/
int wdc_UtilsStrCompare(char *pcSrc, char *pcDst)
{
while ((toupper(*pcSrc) == toupper(*pcDst)) && (*pcSrc != '\0')) {
pcSrc++;
pcDst++;
}
return *pcSrc - *pcDst;
}
void wdc_StrFormat(char *formatter, size_t fmt_sz, char *tofmt, size_t tofmtsz)
{
fmt_sz = snprintf(formatter, fmt_sz, "%-*.*s", (int)tofmtsz, (int)tofmtsz, tofmt);
/* trim() the obnoxious trailing white lines */
while (fmt_sz) {
if (formatter[fmt_sz - 1] != ' ' && formatter[fmt_sz - 1] != '\0') {
formatter[fmt_sz] = '\0';
break;
}
fmt_sz--;
}
}
bool wdc_CheckUuidListSupport(struct nvme_dev *dev, struct nvme_id_uuid_list *uuid_list)
{
int err;
struct nvme_id_ctrl ctrl;
memset(&ctrl, 0, sizeof(struct nvme_id_ctrl));
err = nvme_identify_ctrl(dev_fd(dev), &ctrl);
if (err) {
fprintf(stderr, "ERROR: WDC: nvme_identify_ctrl() failed 0x%x\n", err);
return false;
}
if ((ctrl.ctratt & NVME_CTRL_CTRATT_UUID_LIST) == NVME_CTRL_CTRATT_UUID_LIST) {
err = nvme_identify_uuid(dev_fd(dev), uuid_list);
if (!err)
return true;
else if (err > 0)
nvme_show_status(err);
else
nvme_show_error("identify UUID list: %s", nvme_strerror(errno));
}
return false;
}
bool wdc_UuidEqual(struct nvme_id_uuid_list_entry *entry1, struct nvme_id_uuid_list_entry *entry2)
{
return !memcmp(entry1, entry2, NVME_UUID_LEN);
}
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