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/* $Id$ */
#include <stdio.h>
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/sem.h>
#include "cmbbs.h"
#if 0
static int semid = -1;
#ifndef SEM_R
#define SEM_R 0400
#endif
#ifndef SEM_A
#define SEM_A 0200
#endif
#ifndef __FreeBSD__
#include <sys/sem.h>
union semun {
int val; /* value for SETVAL */
struct semid_ds *buf; /* buffer for IPC_STAT & IPC_SET */
unsigned short *array; /* array for GETALL & SETALL */
struct seminfo *__buf; /* buffer for IPC_INFO */
};
#endif
int
passwd_init(void)
{
semid = semget(PASSWDSEM_KEY, 1, SEM_R | SEM_A | IPC_CREAT | IPC_EXCL);
if (semid == -1) {
if (errno == EEXIST) {
semid = semget(PASSWDSEM_KEY, 1, SEM_R | SEM_A);
if (semid == -1) {
perror("semget");
exit(1);
}
} else {
perror("semget");
exit(1);
}
} else {
union semun s;
s.val = 1;
if (semctl(semid, 0, SETVAL, s) == -1) {
perror("semctl");
exit(1);
}
}
return 0;
}
int
passwd_update_money(int num)
/* update money only
Ptt: don't call it directly, call deumoney() */
{
int pwdfd;
int money=moneyof(num);
userec_t u;
if (num < 1 || num > MAX_USERS)
return -1;
if ((pwdfd = open(fn_passwd, O_WRONLY)) < 0)
exit(1);
lseek(pwdfd, sizeof(userec_t) * (num - 1) +
((char *)&u.money - (char *)&u), SEEK_SET);
write(pwdfd, &money, sizeof(int));
close(pwdfd);
return 0;
}
void
passwd_force_update(int flag)
{
if(!currutmp || (currutmp->alerts & ALERT_PWD) == 0)
return;
currutmp->alerts &= ~flag;
}
int
passwd_update(int num, userec_t * buf)
{
int pwdfd;
if (num < 1 || num > MAX_USERS)
return -1;
buf->money = moneyof(num);
if(usernum == num && currutmp && ((pwdfd = currutmp->alerts) & ALERT_PWD))
{
userec_t u;
passwd_query(num, &u);
if(pwdfd & ALERT_PWD_BADPOST)
cuser.badpost = buf->badpost = u.badpost;
if(pwdfd & ALERT_PWD_GOODPOST)
cuser.goodpost = buf->goodpost = u.goodpost;
if(pwdfd & ALERT_PWD_PERM)
cuser.userlevel = buf->userlevel = u.userlevel;
if(pwdfd & ALERT_PWD_JUSTIFY)
{
memcpy(buf->justify, u.justify, sizeof(u.justify));
memcpy(cuser.justify, u.justify, sizeof(u.justify));
memcpy(buf->email, u.email, sizeof(u.email));
memcpy(cuser.email, u.email, sizeof(u.email));
}
cuser.numposts += u.numposts - latest_numposts;
currutmp->alerts &= ~ALERT_PWD;
// ALERT_PWD_RELOAD: reload all! No need to write.
if (pwdfd & ALERT_PWD_RELOAD)
{
memcpy(&cuser, &u, sizeof(u));
return 0;
}
}
if ((pwdfd = open(fn_passwd, O_WRONLY)) < 0)
exit(1);
lseek(pwdfd, sizeof(userec_t) * (num - 1), SEEK_SET);
write(pwdfd, buf, sizeof(userec_t));
close(pwdfd);
#ifndef _BBS_UTIL_C_
if (latest_numposts != cuser.numposts) {
sendalert_uid(usernum, ALERT_PWD_POSTS);
latest_numposts = cuser.numposts;
}
#endif
return 0;
}
int
passwd_query(int num, userec_t * buf)
{
int pwdfd;
if (num < 1 || num > MAX_USERS)
return -1;
if ((pwdfd = open(fn_passwd, O_RDONLY)) < 0)
exit(1);
lseek(pwdfd, sizeof(userec_t) * (num - 1), SEEK_SET);
read(pwdfd, buf, sizeof(userec_t));
close(pwdfd);
if (buf == &cuser)
latest_numposts = cuser.numposts;
return 0;
}
int initcuser(const char *userid)
{
// Ptt: setup cuser and usernum here
if(userid[0]=='\0' ||
!(usernum = searchuser(userid, NULL)) || usernum > MAX_USERS)
return -1;
passwd_query(usernum, &cuser);
return usernum;
}
int
passwd_apply(void *ctx, int (*fptr) (void *ctx, int, userec_t *))
{
int i;
userec_t user;
for (i = 0; i < MAX_USERS; i++) {
passwd_query(i + 1, &user);
if ((*fptr) (ctx, i, &user) < 0)
return -1;
}
return 0;
}
void
passwd_lock(void)
{
struct sembuf buf = {0, -1, SEM_UNDO};
if (semop(semid, &buf, 1)) {
perror("semop");
exit(1);
}
}
void
passwd_unlock(void)
{
struct sembuf buf = {0, 1, SEM_UNDO};
if (semop(semid, &buf, 1)) {
perror("semop");
exit(1);
}
}
// XXX NOTE: string in plain will be destroyed.
int
checkpasswd(const char *passwd, char *plain)
{
int ok;
char *pw;
ok = 0;
pw = fcrypt(plain, passwd);
if(pw && strcmp(pw, passwd)==0)
ok = 1;
memset(plain, 0, strlen(plain));
return ok;
}
char *
genpasswd(char *pw)
{
if (pw[0]) {
char saltc[2], c;
int i;
i = 9 * getpid();
saltc[0] = i & 077;
saltc[1] = (i >> 6) & 077;
for (i = 0; i < 2; i++) {
c = saltc[i] + '.';
if (c > '9')
c += 7;
if (c > 'Z')
c += 6;
saltc[i] = c;
}
return fcrypt(pw, saltc);
}
return "";
}
void
logattempt(const char *uid, char type, time4_t now, const char *loghost)
{
char fname[PATHLEN];
int fd, len;
char genbuf[200];
snprintf(genbuf, sizeof(genbuf), "%c%-12s[%s] ?@%s\n", type, uid,
Cdate(&now), loghost);
len = strlen(genbuf);
// log to public (BBSHOME)
if ((fd = open(FN_BADLOGIN, O_WRONLY | O_CREAT | O_APPEND, 0644)) > 0) {
write(fd, genbuf, len);
close(fd);
}
// log to user private log
if (type == '-') {
snprintf(genbuf, sizeof(genbuf),
"[%s] %s\n", Cdate(&now), loghost);
len = strlen(genbuf);
sethomefile(fname, uid, FN_BADLOGIN);
if ((fd = open(fname, O_WRONLY | O_CREAT | O_APPEND, 0644)) > 0) {
write(fd, genbuf, len);
close(fd);
}
}
}
#endif
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