int maildir_newshared_nextAt(struct maildir_newshared_enum_cb *info,
int *eof,
int (*cb_func)(struct maildir_newshared_enum_cb*),
void *cb_arg)
{
if (fseek(info->fp, info->startingpos, SEEK_SET) < 0)
return -1;
info->linenum= -1;
return maildir_newshared_next(info, eof, cb_func, cb_arg);
}
int maildir_newshared_enum(const char *indexfile,
int (*cb_func)(struct maildir_newshared_enum_cb *),
void *cb_arg)
{
struct maildir_newshared_enum_cb cb;
int eof;
int rc;
if (maildir_newshared_open(indexfile, &cb) < 0)
return -1;
while ((rc=maildir_newshared_next(&cb, &eof, cb_func, cb_arg)) == 0)
{
if (eof)
{
maildir_newshared_close(&cb);
return 0;
}
}
maildir_newshared_close(&cb);
return rc;
}
static int list_newshared_shortcut(const char *skipped_pattern,
struct list_sharable_info *shared_info,
const char *acc_pfix,
struct maildir_shindex_cache *parentCache,
const char *indexfile,
const char *subhierarchy)
{
struct list_newshared_info lni;
int rc;
struct maildir_shindex_cache *curcache=NULL;
lni.acc_pfix=acc_pfix;
lni.skipped_pattern=skipped_pattern;
lni.shared_info=shared_info;
lni.dorecurse=1;
/* Try for some common optimization, to avoid expanding the
** entire #shared hierarchy, taking advantage of the cache list.
*/
for (;;)
{
const char *p;
size_t i;
char *q;
int eof;
if (strcmp(skipped_pattern, "%") == 0)
{
lni.dorecurse=0;
break;
}
if (strncmp(skipped_pattern, "%" HIERCHS,
sizeof("%" HIERCHS)-1) == 0)
{
curcache=maildir_shared_cache_read(parentCache,
indexfile,
subhierarchy);
if (!curcache)
return 0;
lni.acc_pfix=acc_pfix;
lni.skipped_pattern=skipped_pattern
+ sizeof("%" HIERCHS)-1;
lni.parentCache=curcache;
for (i=0; i<curcache->nrecords; i++)
{
if (i == 0)
{
curcache->indexfile.startingpos=0;
rc=maildir_newshared_nextAt(&curcache->indexfile,
&eof,
list_newshared_skiplevel,
&lni);
}
else
rc=maildir_newshared_next(&curcache->indexfile,
&eof,
list_newshared_skiplevel,
&lni);
if (rc || eof)
{
fprintf(stderr, "ERR:maildir_newshared_next failed: %s\n",
strerror(errno));
break;
}
}
return 0;
}
for (p=skipped_pattern; *p; p++)
if (*p == HIERCH ||
((lni.shared_info->flags & LIST_CHECK1FOLDER) == 0
&& (*p == '*' || *p == '%')))
break;
if (*p && *p != HIERCH)
break;
curcache=maildir_shared_cache_read(parentCache, indexfile,
subhierarchy);
if (!curcache)
return 0;
for (i=0; i < curcache->nrecords; i++)
{
char *n=maildir_info_imapmunge(curcache->records[i]
.name);
if (!n)
write_error_exit(0);
if (strlen(n) == p-skipped_pattern &&
strncmp(n, skipped_pattern, p-skipped_pattern) == 0)
{
free(n);
break;
}
free(n);
}
if (i >= curcache->nrecords) /* not found */
return 0;
if (*p)
++p;
q=malloc(strlen(acc_pfix)+(p-skipped_pattern)+1);
if (!q)
{
write_error_exit(0);
}
strcpy(q, acc_pfix);
strncat(q, skipped_pattern, p-skipped_pattern);
lni.acc_pfix=q;
lni.skipped_pattern=p;
lni.parentCache=curcache;
curcache->indexfile.startingpos=curcache->records[i].offset;
rc=maildir_newshared_nextAt(&curcache->indexfile, &eof,
list_newshared_skipcb, &lni);
free(q);
return rc;
}
if (!indexfile)
indexfile=maildir_shared_index_file();
rc=maildir_newshared_enum(indexfile, list_newshared_cb, &lni);
return rc;
}
static struct maildir_shindex_cache *do_shared_cache_read(const char *indexfile,
const char *subhier)
{
struct maildir_shindex_temp_record *rec=NULL;
size_t n;
struct maildir_shindex_cache *c;
int eof;
int rc;
if ((c=malloc(sizeof(struct maildir_shindex_cache))) == NULL ||
(c->hierarchy=strdup(subhier)) == NULL)
{
if (c)
free(c);
perror("malloc");
return NULL;
}
if (maildir_newshared_open(indexfile, &c->indexfile) < 0)
{
free(c->hierarchy);
free(c);
return NULL;
}
n=0;
while ((rc=maildir_newshared_next(&c->indexfile, &eof,
shared_cache_read_cb, &rec)) == 0)
{
if (eof)
break;
++n;
}
if (rc)
{
free(c->hierarchy);
free(c);
while (rec)
{
struct maildir_shindex_temp_record *r=rec;
rec=rec->next;
free(r->rec.name);
free(r);
}
return NULL;
}
/* Now, convert from list to array */
c->nrecords=n;
c->records=NULL;
c->next=NULL;
if (n)
{
if ((c->records=malloc(sizeof(*c->records)*n)) == NULL)
{
free(c->hierarchy);
free(c);
while (rec)
{
struct maildir_shindex_temp_record *r=rec;
rec=rec->next;
free(r->rec.name);
free(r);
}
return NULL;
}
n=0;
while (rec)
{
struct maildir_shindex_temp_record *r=rec;
rec=rec->next;
c->records[n]= r->rec;
free(r);
++n;
}
}
return c;
}