Preserve errno on dlopen
For the same reasons as in the previous commit we must preserve errno
across dlopen calls. Some implementations (e.g. solaris) do not preserve
errno even on a successful dlopen call.
Fixes
#endif
#include "dso_locl.h"
+#include "e_os.h"
#ifdef DSO_DLFCN
@@ -99,6 +100,7 @@ static int dlfcn_load(DSO *dso)
/* See applicable comments in dso_dl.c */
char *filename = DSO_convert_filename(dso, NULL);
int flags = DLOPEN_FLAG;
+ int saveerrno = get_last_sys_error();
if (filename == NULL) {
DSOerr(DSO_F_DLFCN_LOAD, DSO_R_NO_FILENAME);
@@ -118,6 +120,11 @@ static int dlfcn_load(DSO *dso)
ERR_add_error_data(4, "filename(", filename, "): ", dlerror());
goto err;
}
+ /*
+ * Some dlopen() implementations (e.g. solaris) do no preserve errno, even
+ * on a successful call.
+ */
+ set_sys_error(saveerrno);
if (!sk_void_push(dso->meth_data, (char *)ptr)) {
DSOerr(DSO_F_DLFCN_LOAD, DSO_R_STACK_ERROR);
goto err;
