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/* An example program that demonstrates libtrace's output functionalities.
*
* This libtrace skeleton has the bare minimum required to write a useful
* libtrace output program, including error handling.
*
*/
#include "libtrace.h"
#include <stdio.h>
#include <assert.h>
static void per_packet(libtrace_packet_t *packet)
{
assert(packet);
/* Your code goes here */
}
int main(int argc, char *argv[])
{
libtrace_t *trace;
libtrace_out_t *output;
libtrace_packet_t *packet;
int compress_level = 6;
if (argc<3) {
fprintf(stderr,"usage: %s <input uri> <outputuri>\n",argv[0]);
return 1;
}
trace = trace_create(argv[1]);
if (trace_is_err(trace)) {
trace_perror(trace,"Opening input trace");
return 1;
}
if (trace_start(trace)) {
trace_perror(trace,"Starting input trace");
trace_destroy(trace);
return 1;
}
/* Creating output trace */
output = trace_create_output(argv[2]);
if (trace_is_err_output(output)) {
trace_perror_output(output, "Opening output trace");
return 1;
}
/* Setting compression level */
if (trace_config_output(output, TRACE_OPTION_OUTPUT_COMPRESS,
&compress_level) == -1) {
trace_perror_output(output, "Setting compression level");
trace_destroy(trace);
trace_destroy_output(output);
return 1;
}
if (trace_start_output(output)) {
trace_perror_output(output, "Starting output trace");
trace_destroy_output(output);
trace_destroy(trace);
return 1;
}
packet = trace_create_packet();
while (trace_read_packet(trace,packet)>0) {
/* Perhaps we want to do something to the packet first */
per_packet(packet);
/* Write out the packet */
if (trace_write_packet(output, packet) < 0) {
trace_perror_output(output, "Writing packet");
trace_destroy(trace);
trace_destroy_output(output);
trace_destroy_packet(packet);
return 1;
}
}
if (trace_is_err(trace)) {
trace_perror(trace,"Reading packets");
trace_destroy(trace);
trace_destroy_output(output);
trace_destroy_packet(packet);
return 1;
}
trace_destroy(trace);
trace_destroy_output(output);
trace_destroy_packet(packet);
return 0;
}
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