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/* Test program for libstore -- outputs the concatenation of stores */
#include <argp.h>
#include <error.h>
#include <unistd.h>
#include "store.h"
int
main (int argc, char **argv)
{
error_t err;
struct store *s;
char *name;
struct store_parsed *parsed;
off_t addr;
size_t left;
const struct argp *parents[] = { &store_argp, 0 };
struct argp argp =
{ 0, 0, 0, "Write the contents of a store to stdout", parents };
argp_parse (&argp, argc, argv, 0, 0, &parsed);
err = store_parsed_name (parsed, &name);
if (err)
error (2, err, "store_parsed_name");
err = store_parsed_open (parsed, STORE_READONLY, 0, &s);
if (err)
error (4, err, "%s", name);
addr = 0;
left = s->size;
while (left > 0)
{
size_t read = left > 1024*1024 ? 1024*1024 : left;
char buf[4096];
void *data = buf;
size_t data_len = sizeof (buf);
err = store_read (s, addr, read, &data, &data_len);
if (err)
error (5, err, "%s", name);
if (write (1, data, data_len) < 0)
error (6, errno, "stdout");
addr += data_len >> s->log2_block_size;
left -= data_len;
}
exit (0);
}
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