Piotr Caban : jsproxy: Don't ignore hostname and url length in InternetGetProxyInfo.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 53faf7bda8f88d386a572db3b505cae0af8057fc
URL:    https://gitlab.winehq.org/wine/wine/-/commit/53faf7bda8f88d386a572db3b505cae...

Author: Piotr Caban <piotr(a)codeweavers.com>
Date:   Thu Feb  1 16:20:23 2024 +0100

jsproxy: Don't ignore hostname and url length in InternetGetProxyInfo.

---

 dlls/jsproxy/main.c          |  9 ++-------
 dlls/jsproxy/tests/jsproxy.c | 12 +++++++++++-
 2 files changed, 13 insertions(+), 8 deletions(-)

diff --git a/dlls/jsproxy/main.c b/dlls/jsproxy/main.c
index 4e69210dce3..9506b7153cf 100644
--- a/dlls/jsproxy/main.c
+++ b/dlls/jsproxy/main.c
@@ -576,13 +576,8 @@ BOOL WINAPI InternetGetProxyInfo( LPCSTR url, DWORD len_url, LPCSTR hostname, DW
         SetLastError( ERROR_CAN_NOT_COMPLETE );
         goto done;
     }
-    if (hostname && len_hostname < strlen( hostname ))
-    {
-        SetLastError( ERROR_INSUFFICIENT_BUFFER );
-        goto done;
-    }
-    if (!(urlW = strdupAW( url, -1 ))) goto done;
-    if (hostname && !(hostnameW = strdupAW( hostname, -1 ))) goto done;
+    if (!(urlW = strdupAW( url, len_url ))) goto done;
+    if (hostname && !(hostnameW = strdupAW( hostname, len_hostname ))) goto done;
 
     TRACE( "%s\n", debugstr_w(global_script->text) );
     ret = run_script( global_script->text, urlW, hostnameW, proxy, len_proxy );
diff --git a/dlls/jsproxy/tests/jsproxy.c b/dlls/jsproxy/tests/jsproxy.c
index 505d1a9398a..901ffdf910e 100644
--- a/dlls/jsproxy/tests/jsproxy.c
+++ b/dlls/jsproxy/tests/jsproxy.c
@@ -104,7 +104,9 @@ static void test_InternetInitializeAutoProxyDll(void)
 static void test_InternetGetProxyInfo(void)
 {
     const char url[] = "http://localhost";
-    char script[] = "function FindProxyForURL(url, host) { return \"DIRECT\"; }";
+    char script[] = "function FindProxyForURL(url, host) { "
+        "if (url.substring(0, 4) === 'test') return url + ' ' + host; "
+        "return \"DIRECT\"; }";
     char *proxy, host[] = "localhost";
     AUTO_PROXY_SCRIPT_BUFFER buf;
     DWORD len, err;
@@ -159,6 +161,14 @@ static void test_InternetGetProxyInfo(void)
     ok( len == strlen("DIRECT") + 1, "got %lu\n", len );
     GlobalFree( proxy );
 
+    len = 0;
+    proxy = NULL;
+    ret = pInternetGetProxyInfo( "testa", 4, host, 4, &proxy, &len);
+    ok( ret, "got %lu\n", GetLastError() );
+    ok( !strcmp( proxy, "test loca" ), "got \"%s\"\n", proxy );
+    ok( len == 10, "got %lu\n", len );
+    GlobalFree( proxy );
+
     ret = pInternetDeInitializeAutoProxyDll( NULL, 0 );
     ok( ret, "got %lu\n", GetLastError() );
 }