static int
do_send_and_receive(struct ssh *from, struct ssh *to)
{
u_char type;
size_t len;
const u_char *buf;
int r;
for (;;) {
if ((r = ssh_packet_next(from, &type)) != 0) {
fprintf(stderr, "ssh_packet_next: %s\n", ssh_err(r));
return r;
}
if (type != 0)
return 0;
buf = ssh_output_ptr(from, &len);
if (do_debug)
printf("%zu", len);
if (len == 0)
return 0;
if ((r = ssh_output_consume(from, len)) != 0 ||
(r = ssh_input_append(to, buf, len)) != 0)
return r;
}
}
static int
do_send_and_receive(struct ssh *from, struct ssh *to, int mydirection,
int *packet_count, int trigger_direction, int packet_index,
const char *dump_path, struct sshbuf *replace_data)
{
u_char type;
size_t len, olen;
const u_char *buf;
int r;
FILE *dumpfile;
for (;;) {
if ((r = ssh_packet_next(from, &type)) != 0) {
fprintf(stderr, "ssh_packet_next: %s\n", ssh_err(r));
return r;
}
if (type != 0)
return 0;
buf = ssh_output_ptr(from, &len);
olen = len;
if (do_debug) {
printf("%s packet %d type %u len %zu:\n",
mydirection == S2C ? "s2c" : "c2s",
*packet_count, type, len);
sshbuf_dump_data(buf, len, stdout);
}
if (mydirection == trigger_direction &&
packet_index == *packet_count) {
if (replace_data != NULL) {
buf = sshbuf_ptr(replace_data);
len = sshbuf_len(replace_data);
if (do_debug) {
printf("***** replaced packet "
"len %zu\n", len);
sshbuf_dump_data(buf, len, stdout);
}
} else if (dump_path != NULL) {
if ((dumpfile = fopen(dump_path, "w+")) == NULL)
err(1, "fopen %s", dump_path);
if (len != 0 &&
fwrite(buf, len, 1, dumpfile) != 1)
err(1, "fwrite %s", dump_path);
if (do_debug)
printf("***** dumped packet "
"len %zu\n", len);
fclose(dumpfile);
exit(0);
}
}
(*packet_count)++;
if (len == 0)
return 0;
if ((r = ssh_input_append(to, buf, len)) != 0 ||
(r = ssh_output_consume(from, olen)) != 0)
return r;
}
}
