This change to the "dl", "dlfcn", and "win32" DSO_METHODs adds the filename

or symbol name to the error stack in the event a load or bind operation
failed.

crypto/dso/dso_dl.c

@@ -130,6 +130,7 @@ static int dl_load(DSO *dso)
 	if(ptr == NULL)
 		{
 		DSOerr(DSO_F_DL_LOAD,DSO_R_LOAD_FAILED);
+		ERR_add_error_data(3, "filename(", filename, ")");
 		goto err;
 		}
 	if(!sk_push(dso->meth_data, (char *)ptr))
@@ -198,6 +199,7 @@ static void *dl_bind_var(DSO *dso, const char *symname)
 	if (shl_findsym(&ptr, symname, TYPE_UNDEFINED, &sym) < 0)
 		{
 		DSOerr(DSO_F_DL_BIND_VAR,DSO_R_SYM_FAILURE);
+		ERR_add_error_data(3, "symname(", symname, ")");
 		return(NULL);
 		}
 	return(sym);
@@ -227,6 +229,7 @@ static DSO_FUNC_TYPE dl_bind_func(DSO *dso, const char *symname)
 	if (shl_findsym(&ptr, symname, TYPE_UNDEFINED, &sym) < 0)
 		{
 		DSOerr(DSO_F_DL_BIND_FUNC,DSO_R_SYM_FAILURE);
+		ERR_add_error_data(3, "symname(", symname, ")");
 		return(NULL);
 		}
 	return((DSO_FUNC_TYPE)sym);

crypto/dso/dso_dlfcn.c

@@ -147,6 +147,7 @@ static int dlfcn_load(DSO *dso)
 	if(ptr == NULL)
 		{
 		DSOerr(DSO_F_DLFCN_LOAD,DSO_R_LOAD_FAILED);
+		ERR_add_error_data(3, "filename(", filename, ")");
 		goto err;
 		}
 	if(!sk_push(dso->meth_data, (char *)ptr))
@@ -214,6 +215,7 @@ static void *dlfcn_bind_var(DSO *dso, const char *symname)
 	if(sym == NULL)
 		{
 		DSOerr(DSO_F_DLFCN_BIND_VAR,DSO_R_SYM_FAILURE);
+		ERR_add_error_data(3, "symname(", symname, ")");
 		return(NULL);
 		}
 	return(sym);
@@ -244,6 +246,7 @@ static DSO_FUNC_TYPE dlfcn_bind_func(DSO *dso, const char *symname)
 	if(sym == NULL)
 		{
 		DSOerr(DSO_F_DLFCN_BIND_FUNC,DSO_R_SYM_FAILURE);
+		ERR_add_error_data(3, "symname(", symname, ")");
 		return(NULL);
 		}
 	return(sym);

crypto/dso/dso_win32.c

@@ -126,6 +126,7 @@ static int win32_load(DSO *dso)
 	if(h == NULL)
 		{
 		DSOerr(DSO_F_WIN32_LOAD,DSO_R_LOAD_FAILED);
+		ERR_add_error_data(3, "filename(", filename, ")");
 		goto err;
 		}
 	p = (HINSTANCE *)OPENSSL_malloc(sizeof(HINSTANCE));
@@ -210,6 +211,7 @@ static void *win32_bind_var(DSO *dso, const char *symname)
 	if(sym == NULL)
 		{
 		DSOerr(DSO_F_WIN32_BIND_VAR,DSO_R_SYM_FAILURE);
+		ERR_add_error_data(3, "symname(", symname, ")");
 		return(NULL);
 		}
 	return(sym);
@@ -240,6 +242,7 @@ static DSO_FUNC_TYPE win32_bind_func(DSO *dso, const char *symname)
 	if(sym == NULL)
 		{
 		DSOerr(DSO_F_WIN32_BIND_FUNC,DSO_R_SYM_FAILURE);
+		ERR_add_error_data(3, "symname(", symname, ")");
 		return(NULL);
 		}
 	return((DSO_FUNC_TYPE)sym);