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#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "xwrap.h"
#include "l4logger.h"
#include "ump-sched.h"
#include "trans-loop.h"
#include <errno.h>
#include <fcntl.h>
#include <inttypes.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
int ump_trans_sender (LbsLogger* lbs_log,
char** dest, char** files, char** agents) {
int i;
int files_count;
int agents_count;
lbs_logger_string (lbs_log, "Dump sender arguments:");
lbs_logger_format (lbs_log, "dest_addr = %s", dest[0]);
lbs_logger_format (lbs_log, "dest_port = %s", dest[1]);
for (i = 0; strcmp (files[i], "--"); i++) {
lbs_logger_format (lbs_log, "files[%d] = %s", i, files[i]);
}
files_count = i;
lbs_logger_format (lbs_log, "files_count = %d", files_count);
for (i = 0; agents[i] != NULL; i += 2) {
lbs_logger_format (lbs_log, "agents[%d].addr = %s", i, agents[i]);
lbs_logger_format (lbs_log, "agents[%d].port = %s", i, agents[i + 1]);
}
agents_count = i / 2;
lbs_logger_format (lbs_log, "agents_count = %d", agents_count);
UmpSched* sched = ump_sched_new (lbs_log, UMP_SCHED_TYPE_SENDER,
agents, agents_count);
if (sched == NULL) {
lbs_logger_string (lbs_log, "Cannot construct schedular (terminated)");
return 2;
}
for (i = 0; i < files_count; i++) {
lbs_logger_format (lbs_log, "==> File %d: %s", i, files[i]);
uint16_t filename_len = strlen (files[i]);
int fd = open (files[i], O_RDONLY);
if (fd < 0) {
lbs_logger_format (lbs_log, "open: %s", strerror (errno));
continue;
}
if (ump_sched_connect (sched, dest) < 0) {
lbs_logger_string (lbs_log, "Connot connect to remote host");
continue;
}
lbs_logger_string (lbs_log, "--> Connected to remote host!");
lbs_logger_format (lbs_log, "--> Send %u bytes (filename length)", sizeof (uint16_t));
ump_sched_send (sched, &filename_len, sizeof (uint16_t));
lbs_logger_format (lbs_log, "--> Send %u bytes (filename)", filename_len);
ump_sched_send (sched, files[i], filename_len);
char buf[512];
size_t read_size;
while ((read_size = read (fd, buf, 512)) > 0) {
lbs_logger_format (lbs_log, "--> Send %u bytes (data)", read_size);
ump_sched_send (sched, buf, read_size);
}
lbs_logger_string (lbs_log, "--> Clean up!!");
ump_sched_send (sched, NULL, 0);
close (fd);
lbs_logger_string (lbs_log, "--> Shutting down connection ...");
ump_sched_shutdown (sched);
}
ump_sched_free (sched);
return 0;
}
int ump_trans_receiver (LbsLogger* lbs_log, char** bind_ptr) {
lbs_logger_string (lbs_log, "Dump receiver arguments:");
lbs_logger_format (lbs_log, "bind_addr = %s", bind_ptr[0]);
lbs_logger_format (lbs_log, "bind_port = %s", bind_ptr[1]);
UmpSched* sched = ump_sched_new (lbs_log, UMP_SCHED_TYPE_RECEIVER, NULL, 0);
if (sched == NULL) {
lbs_logger_string (lbs_log, "Cannot construct schedular (terminated)");
return 2;
}
if (ump_sched_listen (sched, bind_ptr) < 0) {
lbs_logger_format (lbs_log, "Cannot listen on host (terminated)");
ump_sched_free (sched);
return 3;
}
while (true) {
if (ump_sched_accept (sched) < 0) {
lbs_logger_string (lbs_log, "==> Bad connection");
continue;
}
lbs_logger_string (lbs_log, "==> New connection accepted");
char buf[sizeof (UmpPkt) * UMP_SCHED_PKT_COUNT];
char* buf_moved = buf;
ssize_t buf_size;
int state = 1;
uint16_t filename_length;
char* filename = NULL;
char* filename_pos;
int fd;
while ((buf_size = ump_sched_receive (sched, buf)) >= 0) {
lbs_logger_format (lbs_log, "==> Get %d bytes!", buf_size);
re_eval:
switch (state) {
case 1: // filename length
if (buf_size >= 2) {
memcpy (&filename_length, buf, 2);
buf_moved += 2;
buf_size -= 2;
filename = xmalloc (filename_length + 1);
filename_pos = filename;
state++;
lbs_logger_format (lbs_log,
"!! Filename length = %" PRIu16, filename_length);
goto re_eval;
} else {
memcpy (&filename_length, buf_moved, 1);
buf_moved++;
if (buf_moved - buf >= 2) {
buf_size -= 2;
filename = xmalloc (filename_length + 1);
filename_pos = filename;
state++;
lbs_logger_format (lbs_log,
"!! Filename length = %" PRIu16, filename_length);
goto re_eval;
}
}
break;
case 2: // filename
if (filename_pos + buf_size > filename + filename_length) {
int buf_cp = filename + filename_length - filename_pos;
memcpy (filename_pos, buf_moved, buf_cp);
buf_moved += buf_cp;
buf_size -= buf_cp;
filename[filename_length] = '\0';
state++;
lbs_logger_format (lbs_log,
"!! File name = %s", filename);
for (int i = 0; i < filename_length; i++) {
if (filename[i] == '/') {
filename[i] = '-';
}
}
lbs_logger_format (lbs_log,
"!! File name = %s (converted)", filename);
fd = open (filename, O_CREAT | O_EXCL | O_WRONLY, 0666);
if (fd < 0) {
lbs_logger_format (lbs_log,
"Cannot create file: %s", strerror (errno));
}
goto re_eval;
} else {
memcpy (filename_pos, buf_moved, buf_size);
filename_pos += buf_size;
buf_moved = buf;
}
break;
case 3: // data
if (fd >= 0) {
lbs_logger_format (lbs_log,
"!! Write %d bytes to file", buf_size);
write (fd, buf_moved, buf_size);
buf_moved = buf;
}
break;
}
}
if (filename != NULL) {
free (filename);
}
if (fd >= 0) {
close (fd);
}
lbs_logger_string (lbs_log, "==> Connection closed");
}
ump_sched_free (sched);
return 0;
}
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