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Fix sscanf validation usage (field count instead of null_byte == 0)

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This commit is contained in:
Vitaliy Filippov
2023-09-07 02:34:35 +03:00
parent 85e9f67d9d
commit b7d398be5b
10 changed files with 36 additions and 36 deletions
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src/cli_df.cpp
+4 -4
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@@ -67,8 +67,8 @@ resume_1:
// pool ID
pool_id_t pool_id;
char null_byte = 0;
sscanf(kv.key.substr(parent->cli->st_cli.etcd_prefix.length()).c_str(), "/pool/stats/%u%c", &pool_id, &null_byte);
if (!pool_id || pool_id >= POOL_ID_MAX || null_byte != 0)
int scanned = sscanf(kv.key.substr(parent->cli->st_cli.etcd_prefix.length()).c_str(), "/pool/stats/%u%c", &pool_id, &null_byte);
if (scanned != 1 || !pool_id || pool_id >= POOL_ID_MAX)
{
fprintf(stderr, "Invalid key in etcd: %s\n", kv.key.c_str());
continue;
@@ -82,8 +82,8 @@ resume_1:
// osd ID
osd_num_t osd_num;
char null_byte = 0;
sscanf(kv.key.substr(parent->cli->st_cli.etcd_prefix.length()).c_str(), "/osd/stats/%lu%c", &osd_num, &null_byte);
if (!osd_num || osd_num >= POOL_ID_MAX || null_byte != 0)
int scanned = sscanf(kv.key.substr(parent->cli->st_cli.etcd_prefix.length()).c_str(), "/osd/stats/%lu%c", &osd_num, &null_byte);
if (scanned != 1 || !osd_num || osd_num >= POOL_ID_MAX)
{
fprintf(stderr, "Invalid key in etcd: %s\n", kv.key.c_str());
continue;