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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 413b484774
commit 4cdd826282
17 changed files with 104 additions and 42 deletions
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9
lib/crypto_backend/crypto_gcrypt.c
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@@ -96,6 +96,8 @@ static void crypt_hash_test_whirlpool_bug(void)
int crypt_backend_init(void)
{
int r;
if (crypto_backend_initialised)
return 0;
@@ -125,11 +127,12 @@ int crypt_backend_init(void)
crypto_backend_initialised = 1;
crypt_hash_test_whirlpool_bug();
snprintf(version, 64, "gcrypt %s%s%s",
r = snprintf(version, sizeof(version), "gcrypt %s%s%s",
gcry_check_version(NULL),
crypto_backend_secmem ? "" : ", secmem disabled",
crypto_backend_whirlpool_bug > 0 ? ", flawed whirlpool" : ""
);
crypto_backend_whirlpool_bug > 0 ? ", flawed whirlpool" : "");
if (r < 0 || (size_t)r >= sizeof(version))
return -EINVAL;
return 0;
}