struct mkuz_blk_info *
mkuz_blkcache_regblock(int fd, const struct mkuz_blk *bp)
{
struct mkuz_blkcache_itm *bcep;
int rval;
unsigned char h;
#if defined(MKUZ_DEBUG)
assert((unsigned)lseek(fd, 0, SEEK_CUR) == bp->info.offset);
#endif
h = digest_fold(bp->info.digest);
if (blkcache.first[h].hit.len == 0) {
bcep = &blkcache.first[h];
} else {
for (bcep = &blkcache.first[h]; bcep != NULL; bcep = bcep->next) {
if (bcep->hit.len != bp->info.len)
continue;
if (memcmp(bp->info.digest, bcep->hit.digest,
sizeof(bp->info.digest)) == 0) {
break;
}
}
if (bcep != NULL) {
rval = verify_match(fd, bp, bcep);
if (rval == 1) {
#if defined(MKUZ_DEBUG)
fprintf(stderr, "cache hit %jd, %jd, %jd, %jd\n",
I2J(bcep->hit.blkno), I2J(bcep->hit.offset),
I2J(bp->info.offset), I2J(bp->info.len));
#endif
return (&bcep->hit);
}
if (rval == 0) {
#if defined(MKUZ_DEBUG)
fprintf(stderr, "block MD5 collision, you should try lottery, "
"man!\n");
#endif
return (NULL);
}
warn("verify_match");
return (NULL);
}
bcep = malloc(sizeof(struct mkuz_blkcache_itm));
if (bcep == NULL)
return (NULL);
memset(bcep, '\0', sizeof(struct mkuz_blkcache_itm));
bcep->next = blkcache.first[h].next;
blkcache.first[h].next = bcep;
}
bcep->hit = bp->info;
return (NULL);
}
/**
* Main function
*/
int main(int argc, char **argv) {
/* The line read, the filename and the position in the file */
char *line = malloc(1024 * sizeof(char));
char *file_name = malloc(1024 * sizeof(char));
unsigned long long position;
/* The search pattern */
char *pattern;
int pattern_size;
/* Read the pattern */
if(argc < 2) {
printf("Usage: %s <pattern file>\n", argv[0]);
return 1;
}
/* Read in the pattern */
pattern = read_entire_file(argv[1], &pattern_size);
fgets(line, 1024, stdin);
while(!feof(stdin)) {
/* Read and parse */
parse_line(line, file_name, &position);
verify_match(pattern, pattern_size, file_name, position);
fgets(line, 1024, stdin);
}
parse_line(line, file_name, &position);
/* Free up */
free(line);
free(file_name);
free(pattern);
return 0;
}
