msvcirt: Implement ifstream::setbuf().

dlls/msvcirt/msvcirt.c

@@ -4276,6 +4276,24 @@ void __thiscall ifstream_open(istream *this, const char *name, ios_open_mode mod
         ios_clear(base, base->state | IOSTATE_failbit);
 }
 
+/* ?setbuf@ifstream@@QAEPAVstreambuf@@PADH@Z */
+/* ?setbuf@ifstream@@QEAAPEAVstreambuf@@PEADH@Z */
+DEFINE_THISCALL_WRAPPER(ifstream_setbuf, 12)
+streambuf* __thiscall ifstream_setbuf(istream *this, char *buffer, int length)
+{
+    ios *base = istream_get_ios(this);
+    filebuf* fb = ifstream_rdbuf(this);
+
+    TRACE("(%p %p %d)\n", this, buffer, length);
+
+    if (filebuf_is_open(fb)) {
+        ios_clear(base, base->state | IOSTATE_failbit);
+        return NULL;
+    }
+
+    return filebuf_setbuf(fb, buffer, length);
+}
+
 /* ?setmode@ifstream@@QAEHH@Z */
 /* ?setmode@ifstream@@QEAAHH@Z */
 DEFINE_THISCALL_WRAPPER(ifstream_setmode, 8)

dlls/msvcirt/msvcirt.spec

@@ -663,8 +663,8 @@
 @ cdecl -arch=win64 ?setbuf@filebuf@@UEAAPEAVstreambuf@@PEADH@Z(ptr ptr long) filebuf_setbuf
 @ stub -arch=win32 ?setbuf@fstream@@QAEPAVstreambuf@@PADH@Z  # class streambuf * __thiscall fstream::setbuf(char *,int)
 @ stub -arch=win64 ?setbuf@fstream@@QEAAPEAVstreambuf@@PEADH@Z
-@ stub -arch=win32 ?setbuf@ifstream@@QAEPAVstreambuf@@PADH@Z  # class streambuf * __thiscall ifstream::setbuf(char *,int)
-@ stub -arch=win64 ?setbuf@ifstream@@QEAAPEAVstreambuf@@PEADH@Z
+@ thiscall -arch=win32 ?setbuf@ifstream@@QAEPAVstreambuf@@PADH@Z(ptr ptr long) ifstream_setbuf
+@ cdecl -arch=win64 ?setbuf@ifstream@@QEAAPEAVstreambuf@@PEADH@Z(ptr ptr long) ifstream_setbuf
 @ stub -arch=win32 ?setbuf@ofstream@@QAEPAVstreambuf@@PADH@Z  # class streambuf * __thiscall ofstream::setbuf(char *,int)
 @ stub -arch=win64 ?setbuf@ofstream@@QEAAPEAVstreambuf@@PEADH@Z
 @ thiscall -arch=win32 ?setbuf@streambuf@@UAEPAV1@PADH@Z(ptr ptr long) streambuf_setbuf

dlls/msvcrt20/msvcrt20.spec

@@ -651,8 +651,8 @@
 @ cdecl -arch=win64 ?setbuf@filebuf@@UEAAPEAVstreambuf@@PEADH@Z(ptr ptr long) msvcirt.?setbuf@filebuf@@UEAAPEAVstreambuf@@PEADH@Z
 @ stub -arch=win32 ?setbuf@fstream@@QAEPAVstreambuf@@PADH@Z
 @ stub -arch=win64 ?setbuf@fstream@@QEAAPEAVstreambuf@@PEADH@Z
-@ stub -arch=win32 ?setbuf@ifstream@@QAEPAVstreambuf@@PADH@Z
-@ stub -arch=win64 ?setbuf@ifstream@@QEAAPEAVstreambuf@@PEADH@Z
+@ thiscall -arch=win32 ?setbuf@ifstream@@QAEPAVstreambuf@@PADH@Z(ptr ptr long) msvcirt.?setbuf@ifstream@@QAEPAVstreambuf@@PADH@Z
+@ cdecl -arch=win64 ?setbuf@ifstream@@QEAAPEAVstreambuf@@PEADH@Z(ptr ptr long) msvcirt.?setbuf@ifstream@@QEAAPEAVstreambuf@@PEADH@Z
 @ stub -arch=win32 ?setbuf@ofstream@@QAEPAVstreambuf@@PADH@Z
 @ stub -arch=win64 ?setbuf@ofstream@@QEAAPEAVstreambuf@@PEADH@Z
 @ thiscall -arch=win32 ?setbuf@streambuf@@UAEPAV1@PADH@Z(ptr ptr long) msvcirt.?setbuf@streambuf@@UAEPAV1@PADH@Z

dlls/msvcrt40/msvcrt40.spec

@@ -723,8 +723,8 @@
 @ cdecl -arch=win64 ?setbuf@filebuf@@UEAAPEAVstreambuf@@PEADH@Z(ptr ptr long) msvcirt.?setbuf@filebuf@@UEAAPEAVstreambuf@@PEADH@Z
 @ stub -arch=win32 ?setbuf@fstream@@QAEPAVstreambuf@@PADH@Z
 @ stub -arch=win64 ?setbuf@fstream@@QEAAPEAVstreambuf@@PEADH@Z
-@ stub -arch=win32 ?setbuf@ifstream@@QAEPAVstreambuf@@PADH@Z
-@ stub -arch=win64 ?setbuf@ifstream@@QEAAPEAVstreambuf@@PEADH@Z
+@ thiscall -arch=win32 ?setbuf@ifstream@@QAEPAVstreambuf@@PADH@Z(ptr ptr long) msvcirt.?setbuf@ifstream@@QAEPAVstreambuf@@PADH@Z
+@ cdecl -arch=win64 ?setbuf@ifstream@@QEAAPEAVstreambuf@@PEADH@Z(ptr ptr long) msvcirt.?setbuf@ifstream@@QEAAPEAVstreambuf@@PEADH@Z
 @ stub -arch=win32 ?setbuf@ofstream@@QAEPAVstreambuf@@PADH@Z
 @ stub -arch=win64 ?setbuf@ofstream@@QEAAPEAVstreambuf@@PEADH@Z
 @ thiscall -arch=win32 ?setbuf@streambuf@@UAEPAV1@PADH@Z(ptr ptr long) msvcirt.?setbuf@streambuf@@UAEPAV1@PADH@Z