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Check exit value for snprintf where it makes sense.

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This commit is contained in:
Milan Broz
2021-05-18 21:41:42 +02:00
parent 280c821b9b
commit df8135dfdf
16 changed files with 96 additions and 40 deletions
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11
lib/setup.c
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@@ -1079,10 +1079,15 @@ static int _init_by_name_crypt_none(struct crypt_device *cd)
_mode);
if (!r) {
snprintf(cd->u.none.cipher_spec, sizeof(cd->u.none.cipher_spec),
r = snprintf(cd->u.none.cipher_spec, sizeof(cd->u.none.cipher_spec),
"%s-%s", cd->u.none.cipher, _mode);
cd->u.none.cipher_mode = cd->u.none.cipher_spec + strlen(cd->u.none.cipher) + 1;
cd->u.none.key_size = tgt->u.crypt.vk->keylength;
if (r < 0 || (size_t)r >= sizeof(cd->u.none.cipher_spec))
r = -EINVAL;
else {
cd->u.none.cipher_mode = cd->u.none.cipher_spec + strlen(cd->u.none.cipher) + 1;
cd->u.none.key_size = tgt->u.crypt.vk->keylength;
r = 0;
}
}
dm_targets_free(cd, &dmd);