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// SPDX-FileCopyrightText: 2019 - 2022 UnionTech Software Technology Co., Ltd.
//
// SPDX-License-Identifier: GPL-3.0-or-later
#include "wtmpparse.h"
#include <QDebug>
int wtmp_open(char *filename)
{
fdWtmp = open(filename, O_RDONLY);
cur_rec = num_recs = 0;
return fdWtmp;
}
int wtmp_open_back(char *filename)
{
fdWtmp = open(filename, O_RDONLY);
bpos = cur_rec = num_recs = 0;
fpos = lseek(fdWtmp, 0, SEEK_END);
return fdWtmp;
}
int seek_end(void)
{
return 0;
}
int wtmp_reload(void)
{
int amt_read;
amt_read = read(fdWtmp, utmpbuf, NRECS * UTSIZE);
num_recs = amt_read / UTSIZE;
cur_rec = 0;
return num_recs;
}
struct utmp *wtmp_next(void)
{
struct utmp *recp;
if (fdWtmp == -1)
return NULLUT;
if (cur_rec == num_recs && wtmp_reload() == 0)
return NULLUT;
recp = (struct utmp *)&utmpbuf[cur_rec * UTSIZE];
cur_rec++;
return recp;
}
int wtmp_reload_back(void)
{
int amt_read;
off_t o;
o = ((fpos - 1) / (NRECS * UTSIZE)) * (NRECS * UTSIZE);
bpos = (int)(fpos - o);
fpos -= NRECS * UTSIZE;
amt_read = pread(fdWtmp, utmpbuf, NRECS * UTSIZE, fpos);
num_recs = amt_read / UTSIZE;
cur_rec = 0;
return num_recs;
}
struct utmp *wtmp_back(void)
{
struct utmp *recp;
if (fdWtmp == -1)
return NULLUT;
if (cur_rec == 0 && wtmp_reload_back() == 0)
return NULLUT;
recp = (struct utmp *)&utmpbuf[cur_rec * UTSIZE];
cur_rec--;
return recp;
}
void wtmp_close(void)
{
if (fdWtmp != -1)
close(fdWtmp);
}
struct utmp_list *st_list_init(void)
{
struct utmp_list *list = static_cast<struct utmp_list *>(malloc(sizeof(struct utmp_list)));
if (!list) {
printf("struct utmp_list malloc failed\n");
return NULL;
}
memset(list, 0, sizeof(struct utmp_list));
return list;
}
struct utmp *st_utmp_init(void)
{
struct utmp *stUTMP = static_cast<struct utmp *>(malloc(sizeof(struct utmp)));
if (!stUTMP) {
printf("struct utmp malloc failed\n");
return NULL;
}
memset(stUTMP, 0, sizeof(struct utmp));
return stUTMP;
}
utmp_list * list_delete(struct utmp_list *list)
{
while (list->next) {
struct utmp_list *p = list;
list = p->next;
free(p);
}
return list;
}
void list_insert(QList<utmp *> &plist, struct utmp *value)
{
utmp v = *value;
utmp *value_ = &(v);
plist.append(value_);
}
utmp list_get_ele_and_del(QList<utmp > &list, char *value, int &rs)
{
utmp temp = {};
for (int i = 0; i < list.length(); ++i) {
utmp itemValue = list.value(i);
QString a(itemValue.ut_line);
QString b(value);
int result = QString::compare(a, b);
if (result == 0) {
list.removeAt(i);
rs = 0;
return itemValue;
}
}
rs = -1;
return temp;
}
char *show_end_time(time_t timeval)
{
struct tm *t;
char tt[256] = {0};
t = localtime(&timeval);
strftime(tt, sizeof(tt) - 1, "%R", t);
//printf("%s", tt);
return asctime(t);
}
char *show_start_time(time_t timeval)
{
struct tm *t;
char tt[256] = {0};
t = localtime(&timeval);
strftime(tt, sizeof(tt) - 1, "%a %b %e %R", t);
// printf("%s", tt);
// printf(" - ");
return asctime(t);
}
void show_base_info(struct utmp *uBuf)
{
printf("%-9.8s", uBuf->ut_name);
if (uBuf->ut_type == BOOT_TIME)
printf("%-13s", "system boot");
else
printf("%-13.8s", uBuf->ut_line);
printf("%-17.16s", uBuf->ut_host);
}
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