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#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <unistd.h>
#include <time.h>
#include <sys/utsname.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/file.h>
#include <sys/socket.h>
#include <signal.h>
#include <netax25/procutils.h>
#include <netax25/axlib.h>
#include "node.h"
#include "sysinfo.h"
struct user User = {0};
static long CallerPos = -1L;
void login_user(void)
{
FILE *f;
struct user u;
long pos = 0L;
long free = -1L;
struct stat statbuf;
if (stat(DATA_NODE_LOGIN_FILE, &statbuf) == -1) {
node_perror(DATA_NODE_LOGIN_FILE, errno);
return;
}
if (statbuf.st_size % sizeof(struct user) != 0) {
node_msg("%s: Incorrect size", DATA_NODE_LOGIN_FILE);
node_log(LOGLVL_ERROR, "%s: Incorrect size", DATA_NODE_LOGIN_FILE);
return;
}
time(&User.logintime);
User.cmdtime = User.logintime;
User.pid = getpid();
if ((f = fopen(DATA_NODE_LOGIN_FILE, "r+")) == NULL) {
node_perror(DATA_NODE_LOGIN_FILE, errno);
return;
}
if (flock(fileno(f), LOCK_EX) == -1) {
node_perror("login_user: flock", errno);
fclose(f);
return;
}
while (fread(&u, sizeof(u), 1, f) == 1) {
if (u.pid == -1 || (kill(u.pid, 0) == -1 && errno == ESRCH)) {
free = pos;
break;
}
pos += sizeof(u);
}
if (free != -1L && fseek(f, free, 0L) == -1) {
node_perror("login_user: fseek", errno);
fclose(f);
return;
}
fflush(f);
CallerPos = ftell(f);
fwrite(&User, sizeof(User), 1, f);
fflush(f);
flock(fileno(f), LOCK_UN);
fclose(f);
}
void logout_user(void)
{
FILE *f;
if (CallerPos == -1L)
return;
if ((f = fopen(DATA_NODE_LOGIN_FILE, "r+")) == NULL) {
node_perror(DATA_NODE_LOGIN_FILE, errno);
return;
}
if (fseek(f, CallerPos, 0) == -1) {
node_perror("logout_user: fseek", errno);
fclose(f);
return;
}
User.pid = -1;
fwrite(&User, sizeof(User), 1, f);
fclose(f);
}
void update_user(void)
{
FILE *f;
if (CallerPos == -1L)
return;
if ((f = fopen(DATA_NODE_LOGIN_FILE, "r+")) == NULL) {
node_perror(DATA_NODE_LOGIN_FILE, errno);
return;
}
if (fseek(f, CallerPos, 0) == -1) {
node_perror("update_user: fseek", errno);
fclose(f);
return;
}
fwrite(&User, sizeof(User), 1, f);
fclose(f);
}
int user_count(void)
{
FILE *f;
struct user u;
int cnt = 0;
if ((f = fopen(DATA_NODE_LOGIN_FILE, "r")) == NULL) {
node_perror(DATA_NODE_LOGIN_FILE, errno);
return 0;
}
while (fread(&u, sizeof(u), 1, f) == 1)
if (u.pid != -1 && (kill(u.pid, 0) != -1 || errno != ESRCH))
cnt++;
fclose(f);
return cnt;
}
int user_list(int argc, char **argv)
{
FILE *f;
struct user u;
struct tm *tp;
struct proc_nr_nodes *np;
char buf[80];
time_t l;
axio_puts("",NodeIo);
if ((f = fopen(DATA_NODE_LOGIN_FILE, "r")) == NULL) {
node_perror(DATA_NODE_LOGIN_FILE, errno);
return 0;
}
if (User.ul_type == AF_NETROM) {
axio_printf(NodeIo, "%s} %s", NodeId, VERSION);
}
if (User.ul_type == AF_INET) {
axio_printf(NodeIo, "\e[01;35m");
} else {
axio_printf(NodeIo, "Current users:");
}
if (user_count() == 0) {
axio_printf(NodeIo, " No users online.\n");
}
if (User.ul_type == AF_INET) {
axio_printf(NodeIo,"\e[0;m");
}
if (user_count() != 0) /* axio_printf(NodeIo,"") */ ;
while (fread(&u, sizeof(u), 1, f) == 1) {
if (u.pid == -1 || (kill(u.pid, 0) == -1 && errno == ESRCH))
continue;
switch (u.ul_type) {
case AF_FLEXNET:
sprintf(buf, "\nFlexNet (%.9s)",
u.call);
break;
case AF_AX25:
sprintf(buf, "\nUplink (%.9s on interface %.10s)",
u.call, u.ul_name);
break;
case AF_NETROM:
if ((np = find_node(u.ul_name, NULL)) != NULL) {
sprintf(buf, "\nCircuit (%.9s %.18s)",
u.call,
print_node(np->alias, np->call));
} else {
sprintf(buf, "\nCircuit (%.9s %.18s)",
u.call, u.ul_name);
}
break;
#ifdef HAVE_ROSE
case AF_ROSE:
sprintf(buf, "\nROSE (%.9s %.18s)",
u.call, u.ul_name);
break;
#endif
case AF_INET:
sprintf(buf, "\nTelnet (%.9s @ %.16s)",
u.call, u.ul_name);
break;
case AF_INET6:
sprintf(buf, "\nTelnet6 (%.9s via IPv6)", u.call);
break;
case AF_UNSPEC:
sprintf(buf, "\nHost (%.9s on local)",
u.call);
break;
default:
sprintf(buf, "\n?????? (%.9s %.18s)",
u.call, u.ul_name);
break;
}
axio_printf(NodeIo,"%-37.37s ", buf);
switch (u.state) {
case STATE_QUIT:
logout_user();
break;
case STATE_LOGIN:
axio_puts(" -> Logging in",NodeIo);
break;
case STATE_IDLE:
time(&l);
l -= u.cmdtime;
tp = gmtime(&l);
axio_printf(NodeIo," -> Idle (%d:%02d:%02d:%02d)",
tp->tm_yday, tp->tm_hour,
tp->tm_min, tp->tm_sec);
break;
case STATE_TRYING:
switch (u.dl_type) {
case AF_FLEXNET:
axio_printf(NodeIo," -> Trying (%s)",
u.dl_name);
break;
case AF_AX25:
axio_printf(NodeIo," -> Trying (%s on interface %s)",
u.dl_name, u.dl_port);
break;
case AF_NETROM:
axio_printf(NodeIo," -> Trying (%s)",
u.dl_name);
break;
#ifdef HAVE_ROSE
case AF_ROSE:
axio_printf(NodeIo," -> Trying (%s)",
u.dl_name);
break;
#endif
case AF_INET:
axio_printf(NodeIo," -> Trying (%s:%s)",
u.dl_name, u.dl_port);
break;
default:
axio_puts(" -> ???",NodeIo);
break;
}
break;
case STATE_CONNECTED:
switch (u.dl_type) {
case AF_FLEXNET:
axio_printf(NodeIo,"<--> FlexNet (%s)",
u.dl_name);
break;
case AF_AX25:
axio_printf(NodeIo,"<--> Downlink (%s on interface %s)",
u.dl_name, u.dl_port);
break;
case AF_NETROM:
axio_printf(NodeIo,"<--> Circuit (%s)",
u.dl_name);
break;
#ifdef HAVE_ROSE
case AF_ROSE:
axio_printf(NodeIo,"<--> ROSE (%s)",
u.dl_name);
break;
#endif
case AF_INET:
axio_printf(NodeIo,"<--> Telnet (%s:%s)",
u.dl_name, u.dl_port);
break;
default:
axio_printf(NodeIo,"<--> ???");
break;
}
break;
case STATE_PINGING:
axio_printf(NodeIo,"<--> Pinging (%s)", u.dl_name);
break;
case STATE_EXTCMD:
axio_printf(NodeIo,"<--> Extcmd (%s)", u.dl_name);
break;
default:
axio_puts(" -> ??????",NodeIo);
break;
}
axio_puts("",NodeIo);
}
if (User.ul_type == AF_NETROM) {
node_msg("");
}
fclose(f);
return 0;
}
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