int sc_make_cache_dir(sc_context_t *ctx)
{
char dirname[PATH_MAX], *sp;
int r, mkdir_checker;
size_t j, namelen;
if ((r = sc_get_cache_dir(ctx, dirname, sizeof(dirname))) < 0)
return r;
namelen = strlen(dirname);
while (1) {
#ifdef _WIN32
mkdir_checker = mkdir(dirname) >= 0;
#else
mkdir_checker = mkdir(dirname, 0700) >= 0;
#endif
if (mkdir_checker)
break;
if (errno != ENOENT || (sp = strrchr(dirname, '/')) == NULL
|| sp == dirname)
goto failed;
*sp = '\0';
}
/* We may have stripped one or more path components from
* the directory name. Restore them */
while (1) {
j = strlen(dirname);
if (j >= namelen)
break;
dirname[j] = '/';
#ifdef _WIN32
mkdir_checker = mkdir(dirname) < 0;
#else
mkdir_checker = mkdir(dirname, 0700) < 0;
#endif
if (mkdir_checker)
goto failed;
}
return SC_SUCCESS;
/* for lack of a better return code */
failed:
sc_log(ctx, "failed to create cache directory");
return SC_ERROR_INTERNAL;
}
static int generate_cache_filename(struct sc_pkcs15_card *p15card,
const sc_path_t *path,
char *buf, size_t bufsize)
{
char dir[PATH_MAX];
char pathname[SC_MAX_PATH_SIZE*2+1];
int r;
const u8 *pathptr;
size_t i, pathlen;
if (path->type != SC_PATH_TYPE_PATH)
return SC_ERROR_INVALID_ARGUMENTS;
assert(path->len <= SC_MAX_PATH_SIZE);
r = sc_get_cache_dir(p15card->card->ctx, dir, sizeof(dir));
if (r)
return r;
pathptr = path->value;
pathlen = path->len;
if (pathlen > 2 && memcmp(pathptr, "\x3F\x00", 2) == 0) {
pathptr += 2;
pathlen -= 2;
}
for (i = 0; i < pathlen; i++)
sprintf(pathname + 2*i, "%02X", pathptr[i]);
if (p15card->tokeninfo->serial_number != NULL) {
char *last_update = sc_pkcs15_get_lastupdate(p15card);
if (last_update != NULL)
r = snprintf(buf, bufsize, "%s/%s_%s_%s", dir, p15card->tokeninfo->serial_number,
last_update, pathname);
else
r = snprintf(buf, bufsize, "%s/%s_DATE_%s", dir,
p15card->tokeninfo->serial_number, pathname);
if (r < 0)
return SC_ERROR_BUFFER_TOO_SMALL;
} else
return SC_ERROR_INVALID_ARGUMENTS;
return SC_SUCCESS;
}
static int generate_cache_filename(struct sc_pkcs15_card *p15card,
const sc_path_t *path,
char *buf, size_t bufsize)
{
char dir[PATH_MAX];
char *last_update = NULL;
int r;
unsigned u;
if (p15card->tokeninfo->serial_number == NULL
&& (p15card->card->uid.len == 0
|| p15card->card->uid.value[0] == RANDOM_UID_INDICATOR))
return SC_ERROR_INVALID_ARGUMENTS;
assert(path->len <= SC_MAX_PATH_SIZE);
r = sc_get_cache_dir(p15card->card->ctx, dir, sizeof(dir));
if (r)
return r;
snprintf(dir + strlen(dir), sizeof(dir) - strlen(dir), "/");
last_update = sc_pkcs15_get_lastupdate(p15card);
if (!last_update)
last_update = "NODATE";
if (p15card->tokeninfo->serial_number) {
snprintf(dir + strlen(dir), sizeof(dir) - strlen(dir),
"%s_%s", p15card->tokeninfo->serial_number,
last_update);
} else {
snprintf(dir + strlen(dir), sizeof(dir) - strlen(dir),
"uid-%s_%s", sc_dump_hex(
p15card->card->uid.value,
p15card->card->uid.len), last_update);
}
if (path->aid.len &&
(path->type == SC_PATH_TYPE_FILE_ID || path->type == SC_PATH_TYPE_PATH)) {
snprintf(dir + strlen(dir), sizeof(dir) - strlen(dir), "_");
for (u = 0; u < path->aid.len; u++)
snprintf(dir + strlen(dir), sizeof(dir) - strlen(dir),
"%02X", path->aid.value[u]);
}
else if (path->type != SC_PATH_TYPE_PATH) {
return SC_ERROR_INVALID_ARGUMENTS;
}
if (path->len) {
size_t offs = 0;
if (path->len > 2 && memcmp(path->value, "\x3F\x00", 2) == 0)
offs = 2;
snprintf(dir + strlen(dir), sizeof(dir) - strlen(dir), "_");
for (u = 0; u < path->len - offs; u++)
snprintf(dir + strlen(dir), sizeof(dir) - strlen(dir),
"%02X", path->value[u + offs]);
}
if (!buf || bufsize < strlen(dir))
return SC_ERROR_BUFFER_TOO_SMALL;
strcpy(buf, dir);
return SC_SUCCESS;
}
