void epmd_call(EpmdVars *g,int what)
{
char buf[OUTBUF_SIZE];
int rval,fd,i,j;
fd = conn_to_epmd(g);
put_int16(1,buf);
buf[2] = what;
write(fd,buf,3);
if (read(fd,(char *)&i,4) != 4) {
if (!g->silent)
printf("epmd: no response from local epmd\n");
epmd_cleanup_exit(g,1);
}
j = ntohl(i);
if (!g->silent)
printf("epmd: up and running on port %d with data:\n", j);
while(1) {
if ((rval = read(fd,buf,1)) <= 0) {
close(fd);
epmd_cleanup_exit(g,0);
}
buf[rval] = '\0';
if (!g->silent)
printf("%s",buf);
}
}
void stop_cli(EpmdVars *g, char *name)
{
char buf[1024];
int fd, rval, bsize;
bsize = strlen(name);
if (bsize > 1000) {
printf("epmd: Name too long!");
epmd_cleanup_exit(g, 1);
}
fd = conn_to_epmd(g);
bsize++;
put_int16(bsize, buf);
buf[2] = EPMD_STOP_REQ;
bsize += 2;
strcpy(buf+3, name);
if (write(fd, buf, bsize) != bsize) {
printf("epmd: Can't write to epmd\n");
epmd_cleanup_exit(g,1);
}
if ((rval = read_fill(fd,buf,7)) == 7) {
buf[7] = '\000';
printf("%s\n", buf);
epmd_cleanup_exit(g,0);
} else if (rval < 0) {
printf("epmd: failed to read answer from local epmd\n");
epmd_cleanup_exit(g,1);
} else { /* rval is now 0 or 1 */
buf[rval] = '\0';
printf("epmd: local epmd responded with <%s>\n", buf);
epmd_cleanup_exit(g,1);
}
}
void kill_epmd(EpmdVars *g)
{
char buf[5];
int fd, rval;
fd = conn_to_epmd(g);
put_int16(1,buf);
buf[2] = EPMD_KILL_REQ;
if (write(fd, buf, 3) != 3) {
printf("epmd: Can't write to epmd\n");
epmd_cleanup_exit(g,1);
}
if ((rval = read_fill(fd,buf,2)) == 2) {
if (buf[0] == 'O' && buf[1] == 'K') {
printf("Killed\n");
} else {
printf("Killing not allowed - living nodes in database.\n");
}
epmd_cleanup_exit(g,0);
} else if (rval < 0) {
printf("epmd: failed to read answer from local epmd\n");
epmd_cleanup_exit(g,1);
} else { /* rval is now 0 or 1 */
buf[rval] = '\0';
printf("epmd: local epmd responded with <%s>\n", buf);
epmd_cleanup_exit(g,1);
}
}
void epmd_call(EpmdVars *g,int what)
{
char buf[OUTBUF_SIZE];
int rval,fd,i,j;
fd = conn_to_epmd(g);
put_int16(1,buf);
buf[2] = what;
if (write(fd, buf, 3) != 3) {
printf("epmd: Can't write to epmd\n");
epmd_cleanup_exit(g,1);
}
if (read(fd,(char *)&i,4) != 4) {
if (!g->silent)
printf("epmd: no response from local epmd\n");
epmd_cleanup_exit(g,1);
}
j = ntohl(i);
if (!g->silent) {
rval = erts_snprintf(buf, OUTBUF_SIZE,
"epmd: up and running on port %d with data:\n", j);
fwrite(buf, 1, rval, stdout);
}
while(1) {
if ((rval = read(fd,buf,OUTBUF_SIZE)) <= 0) {
close(fd);
epmd_cleanup_exit(g,0);
}
if (!g->silent)
fwrite(buf, 1, rval, stdout); /* Potentially UTF-8 encoded */
}
}
static void wstart()
{
char buf[5];
sprintf(&buf[2], "ok");
put_int16(2, &buf[0]);
if (write_fill(1, buf, 4) != 4) {
exit(1);
}
}
static void wok(int sid)
{
char buf[BUFSIZ];
int len;
sprintf(&buf[2], "pam %d yes", sid);
len = strlen(&buf[2]);
put_int16(len, &buf[0]);
if (write_fill(1, buf, len+2) != len+2)
exit(1);
}
static void werr(pam_handle_t *pamh, int sid, int ecode, char *phase)
{
char buf[BUFSIZ];
int len;
sprintf(&buf[2], "pam %d no %s %s",
sid, phase, pam_strerror(pamh, ecode));
len = strlen(&buf[2]);
put_int16(len, &buf[0]);
if (write_fill(1, buf, len+2) != len+2)
exit(1);
}
/**
* Add data and its length in the buffer.
* @param data_bytes The raw data to add.
* @param data_len The length of the data.
*/
void put_data(char *data_bytes, int data_len)
{
put_int16(data_len );
put_raw_data(data_bytes, data_len );
}
