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winldap: avoid NULL pointer deref on ldap_get_dn() fail

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In non-Unicode builds.

Assisted-by: Jay Satiro

Closes #22000
This commit is contained in:
Viktor Szakats 2026-06-14 12:12:53 +02:00
parent adb606eae7
commit 46ba384b1b
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1 changed files with 4 additions and 8 deletions
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12
lib/ldap.c
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@ -456,21 +456,17 @@ static CURLcode ldap_do(struct Curl_easy *data, bool *done)
/* Get the DN and write it to the client */
{
char *name;
char *name = NULL;
size_t name_len = 0;
#ifdef USE_WIN32_LDAP
TCHAR *dn = ldap_get_dn(server, entryIterator);
name = curlx_convert_tchar_to_UTF8(dn);
if(!name) {
ldap_memfree(dn);
result = CURLE_OUT_OF_MEMORY;
goto quit;
}
if(dn)
name = curlx_convert_tchar_to_UTF8(dn);
#else
char *dn = name = ldap_get_dn(server, entryIterator);
#endif
if(!name)
result = CURLE_FAILED_INIT;
result = dn ? CURLE_OUT_OF_MEMORY : CURLE_FAILED_INIT;
else {
name_len = strlen(name);
result = Curl_client_write(data, CLIENTWRITE_BODY, "DN: ", 4);