Better handle low memory conditions.

src/util-debug.c

@@ -943,10 +943,10 @@ SCLogInitData *SCLogAllocLogInitData(void)
 {
     SCLogInitData *sc_lid = NULL;
 
-    if ( (sc_lid = malloc(sizeof(SCLogInitData))) == NULL) {
+    /* not using SCMalloc here because if it fails we can't log */
-        SCLogError(SC_ERR_FATAL, "Fatal error encountered initializing the logging subsytem. Out of memory. Exiting...");
+    if ( (sc_lid = malloc(sizeof(SCLogInitData))) == NULL)
-        exit(EXIT_FAILURE);
+        return NULL;
-    }
+
     memset(sc_lid, 0, sizeof(SCLogInitData));
 
     return sc_lid;

src/util-mem.h

@@ -154,6 +154,7 @@ SC_ATOMIC_EXTERN(unsigned int, engine_stage);
 #define SCFree(a) free((a))
 #endif
 
+#if 0
 #define SCMalloc(a) ({ \
     void *ptrmem = NULL; \
     \
@@ -214,6 +215,11 @@ SC_ATOMIC_EXTERN(unsigned int, engine_stage);
     } \
     (void*)ptrmem; \
 })
+#endif
+#define SCMalloc malloc
+#define SCRealloc realloc
+#define SCCalloc calloc
+#define SCStrdup strdup
 
 #define SCFree(a) ({ \
     free(a); \