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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <unistd.h>
#include <time.h>
#include <sys/file.h>
#include <linux/socket.h>
#include <signal.h>
#include <syslog.h>
#include "procutils.h"
#include "version.h"
#include "config.h"
#include "node.h"
#include "io.h"
static void pipe_handler(int sig)
{
syslog(LOG_ERR, "received SIGPIPE");
end_io(STDIN_FILENO);
exit(1);
}
int main(int argc, char **argv)
{
int n, len = 1024;
char *cp = UNSPEC_EOL;
int inet = 0;
int logging = 0;
while ((n = getopt(argc, argv, "ail")) != -1) {
switch (n) {
case 'a':
cp = AX25_EOL;
len = 128;
break;
case 'i':
cp = INET_EOL;
inet = 1;
break;
case 'l':
logging = 1;
break;
default:
fprintf(stderr, "usage: nodeusers [-a] [-i] [-l]\r\n");
return 1;
}
}
if (logging)
openlog("nodeusers", LOG_PID, LOG_DAEMON);
signal(SIGPIPE, pipe_handler);
init_io(STDIN_FILENO, len, cp);
if (inet && readline(STDIN_FILENO) == NULL) {
if (logging)
syslog(LOG_ERR, "readline: %m");
end_io(STDIN_FILENO);
return 1;
}
n = user_count();
tprintf("\n%s (%s), %d user%s.\n\n",
VERSION, version, n, n == 1 ? "" : "s");
user_list(0, NULL);
if (n > 0)
tputs("\n");
if (usflush(STDIN_FILENO) == -1 && logging)
syslog(LOG_ERR, "usflush: %m");
end_io(STDIN_FILENO);
closelog();
return 0;
}
char *print_node(const char *alias, const char *call)
{
static char node[17];
sprintf(node, "%s%s%s",
!strcmp(alias, "*") ? "" : alias,
!strcmp(alias, "*") ? "" : ":",
call);
return node;
}
int user_list(int argc, char **argv)
{
FILE *f;
struct user u;
struct tm *tp;
struct proc_nr_nodes *np;
char buf[80];
long l;
if ((f = fopen(DATA_NODE_LOGIN_FILE, "r")) == NULL) {
perror(DATA_NODE_LOGIN_FILE);
return 0;
}
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_AX25:
sprintf(buf, "Uplink (%.9s on port %.10s)",
u.call, u.ul_name);
break;
case AF_NETROM:
if ((np = find_node(u.ul_name, NULL)) != NULL) {
sprintf(buf, "Circuit (%.9s %.18s)",
u.call,
print_node(np->alias, np->call));
} else {
sprintf(buf, "Circuit (%.9s %.18s)",
u.call, u.ul_name);
}
break;
case AF_ROSE:
sprintf(buf, "ROSE (%.9s %.18s)",
u.call, u.ul_name);
break;
case AF_INET:
sprintf(buf, "Telnet (%.9s @ %.16s)",
u.call, u.ul_name);
break;
case AF_UNSPEC:
sprintf(buf, "Host (%.9s on local)",
u.call);
break;
default:
/* something strange... */
sprintf(buf, "?????? (%.9s %.18s)",
u.call, u.ul_name);
break;
}
tprintf("%-37.37s ", buf);
switch (u.state) {
case STATE_LOGIN:
tputs(" -> Logging in");
break;
case STATE_IDLE:
time(&l);
l -= u.cmdtime;
tp = gmtime(&l);
tprintf(" -> 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_AX25:
tprintf(" -> Trying (%s on port %s)",
u.dl_name, u.dl_port);
break;
case AF_NETROM:
tprintf(" -> Trying (%s)",
u.dl_name);
break;
case AF_INET:
tprintf(" -> Trying (%s:%s)",
u.dl_name, u.dl_port);
break;
default:
tputs(" -> ???");
break;
}
break;
case STATE_CONNECTED:
switch (u.dl_type) {
case AF_AX25:
tprintf("<--> Downlink (%s on port %s)",
u.dl_name, u.dl_port);
break;
case AF_NETROM:
tprintf("<--> Circuit (%s)",
u.dl_name);
break;
case AF_INET:
tprintf("<--> Telnet (%s:%s)",
u.dl_name, u.dl_port);
break;
default:
tprintf("<--> ???");
break;
}
break;
case STATE_PINGING:
tprintf("<--> Pinging (%s)", u.dl_name);
break;
case STATE_EXTCMD:
tprintf("<--> Extcmd (%s)", u.dl_name);
break;
default:
/* something strange... */
tputs(" -> ??????");
break;
}
tputs("\n");
}
fclose(f);
return 0;
}
int user_count(void)
{
FILE *f;
struct user u;
int cnt = 0;
if ((f = fopen(DATA_NODE_LOGIN_FILE, "r")) == NULL) {
perror(DATA_NODE_LOGIN_FILE);
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;
}
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