Implement common logging function
When used as a library, it's desirable to be able to suppress logging,
or pipe logging through a different path. This commit changes behavior
such that logging is disabled by default, and introduces 2 new methods,
cper_set_log_stdio and cper_set_log_custom.
These allow library integrators to specify their logging mode. In
practice, this also allows fuzzing to run faster by not printing errors
to the log.
Change-Id: I941476627bc9b8261ba5f6c0b2b2338fdf931dd2
Signed-off-by: Ed Tanous <etanous@nvidia.com>
diff --git a/sections/cper-section-dmar-vtd.c b/sections/cper-section-dmar-vtd.c
index ad86293..fcbce18 100644
--- a/sections/cper-section-dmar-vtd.c
+++ b/sections/cper-section-dmar-vtd.c
@@ -11,6 +11,7 @@
#include <libcper/Cper.h>
#include <libcper/cper-utils.h>
#include <libcper/sections/cper-section-dmar-vtd.h>
+#include <libcper/log.h>
//Converts a single VT-d specific DMAr CPER section into JSON IR.
json_object *cper_section_dmar_vtd_to_ir(const UINT8 *section, UINT32 size)
@@ -100,7 +101,7 @@
encoded = base64_encode((UINT8 *)vtd_error->ContextEntry, 16,
&encoded_len);
if (encoded == NULL) {
- printf("Failed to allocate encode output buffer. \n");
+ cper_print_log("Failed to allocate encode output buffer. \n");
} else {
json_object_object_add(section_ir, "contextEntry",
json_object_new_string_len(encoded,
@@ -188,7 +189,7 @@
json_object_get_string_len(encoded),
&decoded_len);
if (decoded == NULL) {
- printf("Failed to allocate decode output buffer. \n");
+ cper_print_log("Failed to allocate decode output buffer. \n");
} else {
memcpy(section_cper->RootEntry, decoded, decoded_len);
free(decoded);
@@ -202,7 +203,7 @@
json_object_get_string_len(encoded),
&decoded_len);
if (decoded == NULL) {
- printf("Failed to allocate decode output buffer. \n");
+ cper_print_log("Failed to allocate decode output buffer. \n");
} else {
memcpy(section_cper->ContextEntry, decoded, decoded_len);