PATCH: make capi dynamic

Marcus Meissner marcus at jet.franken.de
Thu Jan 6 14:31:51 CST 2005


Hi,

I got several complaints that wine hardrequirs libcapi20.so, so
here is the dynamic loading patch for it.

Untested, except that it compiles.

Ciao, Marcus

Changelog:
	Load libcapi20.so.* dynamically on demand.

Index: configure.ac
===================================================================
RCS file: /home/wine/wine/configure.ac,v
retrieving revision 1.331
diff -u -r1.331 configure.ac
--- configure.ac	5 Jan 2005 13:26:34 -0000	1.331
+++ configure.ac	6 Jan 2005 20:29:34 -0000
@@ -700,7 +700,6 @@
 	AC_CHECK_HEADERS(linux/capi.h,[
 		AC_CHECK_LIB(capi20,capi20_register,[
 			AC_DEFINE(HAVE_CAPI4LINUX,1,[Define if you have capi4linux libs and headers])
-			AC_SUBST(CAPI4LINUXLIBS,"-lcapi20")
 		])
 	])
 ])
@@ -1106,6 +1105,7 @@
   WINE_GET_SONAME(ungif,DGifOpen)
   WINE_GET_SONAME(gif,DGifOpen)
   WINE_GET_SONAME(lcms,cmsOpenProfileFromFile)
+  WINE_GET_SONAME(capi20,capi20_isinstalled)
 fi
 
 
Index: dlls/capi2032/Makefile.in
===================================================================
RCS file: /home/wine/wine/dlls/capi2032/Makefile.in,v
retrieving revision 1.1
diff -u -r1.1 Makefile.in
--- dlls/capi2032/Makefile.in	6 Nov 2003 00:26:43 -0000	1.1
+++ dlls/capi2032/Makefile.in	6 Jan 2005 20:29:34 -0000
@@ -4,7 +4,6 @@
 VPATH     = @srcdir@
 MODULE    = capi2032.dll
 IMPORTS   = kernel32
-EXTRALIBS = @CAPI4LINUXLIBS@
 
 C_SRCS = cap20wxx.c
 
Index: dlls/capi2032/cap20wxx.c
===================================================================
RCS file: /home/wine/wine/dlls/capi2032/cap20wxx.c,v
retrieving revision 1.4
diff -u -r1.4 cap20wxx.c
--- dlls/capi2032/cap20wxx.c	17 Aug 2004 22:08:43 -0000	1.4
+++ dlls/capi2032/cap20wxx.c	6 Jan 2005 20:29:34 -0000
@@ -36,18 +36,64 @@
 #ifdef HAVE_CAPI20_H
 # include <capi20.h>
 #endif
+#include "wine/port.h"
+#include "wine/library.h"
 #include "wine/debug.h"
 #include "cap20wxx.h"
 
+#ifndef SONAME_LIBCAPI20
+#define SONAME_LIBCAPI20 "libcapi20.so"
+#endif
+
 WINE_DEFAULT_DEBUG_CHANNEL(capi);
 
+static unsigned (*pcapi20_register)(unsigned, unsigned, unsigned, unsigned *) = NULL;
+static unsigned (*pcapi20_release)(unsigned) = NULL;
+static unsigned (*pcapi20_put_message)(unsigned, unsigned char *) = NULL;
+static unsigned (*pcapi20_get_message)(unsigned, unsigned char **) = NULL;
+static unsigned (*pcapi20_waitformessage)(unsigned, struct timeval *) = NULL;
+static unsigned (*pcapi20_isinstalled)() = NULL;
+static unsigned (*pcapi20_get_profile)(unsigned, unsigned char *) = NULL;
+static unsigned char *(*pcapi20_get_manufacturer)(unsigned, unsigned char *) = NULL;
+static unsigned char *(*pcapi20_get_serial_number)(unsigned, unsigned char *) = NULL;
+static unsigned char *(*pcapi20_get_version)(unsigned, unsigned char *) = NULL;
+
+static void load_functions() {
+    void *capi_handle = NULL;
+
+    if (pcapi20_register) /* loaded already */
+	return;
+    capi_handle = wine_dlopen(SONAME_LIBCAPI20, RTLD_NOW, NULL, 0);
+    if(!capi_handle) {
+        FIXME("Wine cannot find the library %s, capi2032.dll not working.\n", SONAME_LIBCAPI20);
+        return;
+    }
+#define LOAD_FUNCPTR(f) if((p##f = wine_dlsym(capi_handle, #f, NULL, 0)) == NULL){WARN("Can't find symbol %s\n", #f); return;}
+LOAD_FUNCPTR(capi20_register);
+LOAD_FUNCPTR(capi20_release);
+LOAD_FUNCPTR(capi20_put_message);
+LOAD_FUNCPTR(capi20_get_message);
+LOAD_FUNCPTR(capi20_waitformessage);
+LOAD_FUNCPTR(capi20_isinstalled);
+LOAD_FUNCPTR(capi20_get_profile);
+LOAD_FUNCPTR(capi20_get_manufacturer);
+LOAD_FUNCPTR(capi20_get_serial_number);
+LOAD_FUNCPTR(capi20_get_version);
+#undef LOAD_FUNCPTR
+}
+
 /*===========================================================================*\
 \*===========================================================================*/
 
 DWORD WINAPI wrapCAPI_REGISTER (DWORD MessageBufferSize, DWORD maxLogicalConnection, DWORD maxBDataBlocks, DWORD maxBDataLen, DWORD *pApplID) {
 #ifdef HAVE_CAPI4LINUX
     unsigned aid = 0;
-    DWORD fret = capi20_register (maxLogicalConnection, maxBDataBlocks, maxBDataLen, &aid);
+    DWORD fret;
+
+    load_functions();
+    if (!pcapi20_register)
+        return 0x1009;
+    fret = pcapi20_register (maxLogicalConnection, maxBDataBlocks, maxBDataLen, &aid);
     *pApplID   = aid;
     TRACE ( "(%lx) -> %lx\n", *pApplID, fret);
     return fret;
@@ -61,7 +107,12 @@
 \*---------------------------------------------------------------------------*/
 DWORD WINAPI wrapCAPI_RELEASE (DWORD ApplID) {
 #ifdef HAVE_CAPI4LINUX
-    DWORD fret = capi20_release (ApplID);
+    DWORD fret;
+
+    load_functions();
+    if (!pcapi20_release)
+        return 0x1109;
+    fret = pcapi20_release (ApplID);
     TRACE ("(%lx) -> %lx\n", ApplID, fret);
     return fret;
 #else
@@ -73,7 +124,12 @@
 \*---------------------------------------------------------------------------*/
 DWORD WINAPI wrapCAPI_PUT_MESSAGE (DWORD ApplID, PVOID pCAPIMessage) {
 #ifdef HAVE_CAPI4LINUX
-    DWORD fret = capi20_put_message (ApplID, pCAPIMessage);
+    DWORD fret;
+
+    load_functions();
+    if (!pcapi20_put_message)
+        return 0x1109;
+    fret = pcapi20_put_message (ApplID, pCAPIMessage);
     TRACE ("(%lx) -> %lx\n", ApplID, fret);
     return fret;
 #else
@@ -85,7 +141,12 @@
 \*---------------------------------------------------------------------------*/
 DWORD WINAPI wrapCAPI_GET_MESSAGE (DWORD ApplID, PVOID *ppCAPIMessage) {
 #ifdef HAVE_CAPI4LINUX
-    DWORD fret = capi20_get_message (ApplID, (unsigned char **)ppCAPIMessage);
+    DWORD fret;
+
+    load_functions();
+    if (!pcapi20_get_message)
+        return 0x1109;
+    fret = pcapi20_get_message (ApplID, (unsigned char **)ppCAPIMessage);
     TRACE ("(%lx) -> %lx\n", ApplID, fret);
     return fret;
 #else
@@ -98,7 +159,12 @@
 DWORD WINAPI wrapCAPI_WAIT_FOR_SIGNAL (DWORD ApplID) {
 #ifdef HAVE_CAPI4LINUX
     TRACE ("(%lx)\n", ApplID);
-    return capi20_waitformessage (ApplID, NULL);
+
+    load_functions();
+    if (!pcapi20_waitformessage)
+        return 0x1109;
+
+    return pcapi20_waitformessage (ApplID, NULL);
 #else
     return 0x1109;
 #endif
@@ -108,7 +174,13 @@
 \*---------------------------------------------------------------------------*/
 DWORD WINAPI wrapCAPI_GET_MANUFACTURER (char *SzBuffer) {
 #ifdef HAVE_CAPI4LINUX
-    DWORD fret = (capi20_get_manufacturer (0, SzBuffer) != 0) ? 0 : 0x1108;
+    DWORD fret;
+
+    load_functions();
+    if (!pcapi20_get_manufacturer)
+        return 0x1109;
+
+    fret = (pcapi20_get_manufacturer (0, SzBuffer) != 0) ? 0 : 0x1108;
     if (!strncmp (SzBuffer, "AVM", 3)) {
         strcpy (SzBuffer, "AVM-GmbH");
     }
@@ -124,7 +196,12 @@
 DWORD WINAPI wrapCAPI_GET_VERSION (DWORD *pCAPIMajor, DWORD *pCAPIMinor, DWORD *pManufacturerMajor, DWORD *pManufacturerMinor) {
 #ifdef HAVE_CAPI4LINUX
     unsigned char version[4 * sizeof (unsigned)];
-    DWORD fret = (capi20_get_version (0, version) != 0) ? 0 : 0x1108;
+    DWORD fret;
+
+    load_functions();
+    if (!pcapi20_get_version)
+        return 0x1109;
+    fret = (pcapi20_get_version (0, version) != 0) ? 0 : 0x1108;
     *pCAPIMajor         = *(unsigned *)(version + 0 * sizeof (unsigned));
     *pCAPIMinor         = *(unsigned *)(version + 1 * sizeof (unsigned));
     *pManufacturerMajor = *(unsigned *)(version + 2 * sizeof (unsigned));
@@ -141,7 +218,12 @@
 \*---------------------------------------------------------------------------*/
 DWORD WINAPI wrapCAPI_GET_SERIAL_NUMBER (char *SzBuffer) {
 #ifdef HAVE_CAPI4LINUX
-    DWORD fret = (capi20_get_serial_number (0, SzBuffer) != 0) ? 0 : 0x1108;
+    DWORD fret;
+
+    load_functions();
+    if (!pcapi20_get_serial_number)
+        return 0x1109;
+    fret = (pcapi20_get_serial_number (0, SzBuffer) != 0) ? 0 : 0x1108;
     TRACE ("(%s) -> %lx\n", SzBuffer, fret);
     return fret;
 #else
@@ -153,7 +235,13 @@
 \*---------------------------------------------------------------------------*/
 DWORD WINAPI wrapCAPI_GET_PROFILE (PVOID SzBuffer, DWORD CtlrNr) {
 #ifdef HAVE_CAPI4LINUX
-    DWORD fret = capi20_get_profile (CtlrNr, SzBuffer);
+    DWORD fret;
+
+    load_functions();
+    if (!pcapi20_get_profile)
+        return 0x1109;
+
+    fret = pcapi20_get_profile (CtlrNr, SzBuffer);
     TRACE ("(%lx,%x) -> %lx\n", CtlrNr, *(unsigned short *)SzBuffer, fret);
     return fret;
 #else
@@ -165,7 +253,12 @@
 \*---------------------------------------------------------------------------*/
 DWORD WINAPI wrapCAPI_INSTALLED (void) {
 #ifdef HAVE_CAPI4LINUX
-    DWORD fret = capi20_isinstalled();
+    DWORD fret;
+
+    load_functions();
+    if (!pcapi20_isinstalled)
+        return 0x1109;
+    fret = pcapi20_isinstalled();
     TRACE ("() -> %lx\n", fret);
     return fret;
 #else



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