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Dynamically allocate buffer in wolfSSL_X509V3_EXT_print

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Carie Pointer
2019-10-09 12:54:23 -07:00
parent d89f9ddc42
commit 2312d0e125
1 changed files with 8 additions and 3 deletions
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11
src/ssl.c
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@@ -8124,19 +8124,24 @@ int wolfSSL_X509V3_EXT_print(WOLFSSL_BIO *out, WOLFSSL_X509_EXTENSION *ext,
case ALT_NAMES_OID: case ALT_NAMES_OID:
{ {
WOLFSSL_STACK* sk; WOLFSSL_STACK* sk;
char val[sz]; char* val;
int len;
tmp[0] = '\0'; /* Make sure tmp is null-terminated */ tmp[0] = '\0'; /* Make sure tmp is null-terminated */
sk = ext->ext_sk; sk = ext->ext_sk;
while (sk != NULL) { while (sk != NULL) {
/* str is GENERAL_NAME for subject alternative name ext */ /* str is GENERAL_NAME for subject alternative name ext */
str = sk->data.gn->d.ia5; str = sk->data.gn->d.ia5;
len = str->length + 2; /* + 2 for NULL char and "," */
val = (char*)XMALLOC(len + indent, NULL,
DYNAMIC_TYPE_TMP_BUFFER);
if (sk->next) if (sk->next)
XSNPRINTF(val, sz, "%*s%s, ", indent, "", str->strData); XSNPRINTF(val, len, "%*s%s, ", indent, "", str->strData);
else else
XSNPRINTF(val, sz, "%*s%s", indent, "", str->strData); XSNPRINTF(val, len, "%*s%s", indent, "", str->strData);
XSTRNCAT(tmp, val, sz); XSTRNCAT(tmp, val, sz);
XFREE(val, NULL, DYNAMIC_TYPE_TMP_BUFFER);
sk = sk->next; sk = sk->next;
} }
break; break;