static int
find_dst(struct parse_arg *pasrc, const char *dst)
{
int ret;
struct parse_arg padst;
struct _lookup *cl;
struct _region data;
ret = _lookup_seq_open(&cl, CS_PIVOT, _LOOKUP_CASE_IGNORE);
if (ret)
return ret;
ret = _lookup_seq_lookup(cl, pasrc->dst, &data);
while (ret == 0) {
ret = parse_line(&padst, &data);
if (ret)
break;
if (strcmp(dst, padst.dst) == 0) {
pasrc->norm += padst.norm;
break;
}
ret = _lookup_seq_next(cl, NULL, &data);
}
_lookup_seq_close(cl);
return ret;
}
static int
find_best_pivot_lookup(const char *src, const char *dst, char *pivot,
size_t pvlen, unsigned long *rnorm)
{
int ret;
struct _lookup *cl;
struct _region data;
struct parse_arg pa;
unsigned long norm_min;
char pivot_min[PATH_MAX];
ret = _lookup_seq_open(&cl, CS_PIVOT, _LOOKUP_CASE_IGNORE);
if (ret)
return ret;
norm_min = ULONG_MAX;
/* find pivot code */
ret = _lookup_seq_lookup(cl, src, &data);
while (ret == 0) {
ret = parse_line(&pa, &data);
if (ret)
break;
ret = find_dst(&pa, dst);
if (ret)
break;
if (pa.norm < norm_min) {
norm_min = pa.norm;
strlcpy(pivot_min, pa.dst, sizeof(pivot_min));
}
ret = _lookup_seq_next(cl, NULL, &data);
}
_lookup_seq_close(cl);
if (ret != ENOENT)
return ret;
if (norm_min == ULONG_MAX)
return ENOENT;
strlcpy(pivot, pivot_min, pvlen);
if (rnorm)
*rnorm = norm_min;
return 0;
}
/*
* _citrus_esdb_get_list:
* get esdb entries.
*/
int
_citrus_esdb_get_list(char ***rlist, size_t *rnum, bool sorted)
{
struct _citrus_lookup *cla, *cld;
struct _region key, data;
char **list, **q;
char buf[PATH_MAX];
size_t num;
int ret;
num = 0;
ret = _lookup_seq_open(&cla, _PATH_ESDB "/" ESDB_ALIAS,
_LOOKUP_CASE_IGNORE);
if (ret)
goto quit0;
ret = _lookup_seq_open(&cld, _PATH_ESDB "/" ESDB_DIR,
_LOOKUP_CASE_IGNORE);
if (ret)
goto quit1;
/* count number of entries */
num = _lookup_get_num_entries(cla) + _lookup_get_num_entries(cld);
_lookup_seq_rewind(cla);
_lookup_seq_rewind(cld);
/* allocate list pointer space */
list = malloc(num * sizeof(char *));
num = 0;
if (list == NULL) {
ret = errno;
goto quit3;
}
/* get alias entries */
while ((ret = _lookup_seq_next(cla, &key, &data)) == 0) {
if (sorted)
snprintf(buf, sizeof(buf), "%.*s/%.*s",
(int)_region_size(&data),
(const char *)_region_head(&data),
(int)_region_size(&key),
(const char *)_region_head(&key));
else
snprintf(buf, sizeof(buf), "%.*s/%.*s",
(int)_region_size(&data),
(const char *)_region_head(&data),
(int)_region_size(&key),
(const char *)_region_head(&key));
_bcs_convert_to_upper(buf);
list[num] = strdup(buf);
if (list[num] == NULL) {
ret = errno;
goto quit3;
}
num++;
}
if (ret != ENOENT)
goto quit3;
/* get dir entries */
while ((ret = _lookup_seq_next(cld, &key, &data)) == 0) {
if (!sorted)
snprintf(buf, sizeof(buf), "%.*s",
(int)_region_size(&key),
(const char *)_region_head(&key));
else {
/* check duplicated entry */
char *p;
char buf1[PATH_MAX];
snprintf(buf1, sizeof(buf1), "%.*s",
(int)_region_size(&data),
(const char *)_region_head(&data));
if ((p = strchr(buf1, '/')) != NULL)
memcpy(buf1, p + 1, strlen(p) - 1);
if ((p = strstr(buf1, ".esdb")) != NULL)
*p = '\0';
snprintf(buf, sizeof(buf), "%s/%.*s", buf1,
(int)_region_size(&key),
(const char *)_region_head(&key));
}
_bcs_convert_to_upper(buf);
ret = _lookup_seq_lookup(cla, buf, NULL);
if (ret) {
if (ret != ENOENT)
goto quit3;
/* not duplicated */
list[num] = strdup(buf);
if (list[num] == NULL) {
ret = errno;
goto quit3;
}
num++;
}
}
if (ret != ENOENT)
goto quit3;
ret = 0;
/* XXX: why reallocing the list space posteriorly?
shouldn't be done earlier? */
q = realloc(list, num * sizeof(char *));
if (!q) {
ret = ENOMEM;
goto quit3;
}
list = q;
*rlist = list;
*rnum = num;
quit3:
if (ret)
_citrus_esdb_free_list(list, num);
_lookup_seq_close(cld);
quit1:
_lookup_seq_close(cla);
quit0:
return (ret);
}