1 files changed, 14 insertions, 21 deletions

diff --git a/libnetdata/buffer/buffer.c b/src/libnetdata/buffer/buffer.c
index 64f9cce47..119216dd9 100644
--- a/libnetdata/buffer/buffer.c
+++ b/src/libnetdata/buffer/buffer.c
@@ -259,23 +259,23 @@ void buffer_free(BUFFER *b) {
 void buffer_increase(BUFFER *b, size_t free_size_required) {
     buffer_overflow_check(b);
 
-    size_t left = b->size - b->len;
-    if(left >= free_size_required) return;
+    size_t remaining = b->size - b->len;
+    if(remaining >= free_size_required) return;
 
-    size_t wanted = free_size_required - left;
-    size_t minimum = WEB_DATA_LENGTH_INCREASE_STEP;
-    if(minimum > wanted) wanted = minimum;
+    size_t increase = free_size_required - remaining;
+    size_t minimum = 128;
+    if(minimum > increase) increase = minimum;
 
     size_t optimal = (b->size > 5*1024*1024) ? b->size / 2 : b->size;
-    if(optimal > wanted) wanted = optimal;
+    if(optimal > increase) increase = optimal;
 
-    netdata_log_debug(D_WEB_BUFFER, "Increasing data buffer from size %zu to %zu.", b->size, b->size + wanted);
+    netdata_log_debug(D_WEB_BUFFER, "Increasing data buffer from size %zu to %zu.", b->size, b->size + increase);
 
-    b->buffer = reallocz(b->buffer, b->size + wanted + sizeof(BUFFER_OVERFLOW_EOF) + 2);
-    b->size += wanted;
+    b->buffer = reallocz(b->buffer, b->size + increase + sizeof(BUFFER_OVERFLOW_EOF) + 2);
+    b->size += increase;
 
     if(b->statistics)
-        __atomic_add_fetch(b->statistics, wanted, __ATOMIC_RELAXED);
+        __atomic_add_fetch(b->statistics, increase, __ATOMIC_RELAXED);
 
     buffer_overflow_init(b);
     buffer_overflow_check(b);
@@ -341,8 +341,10 @@ __attribute__((constructor)) void initialize_ascii_maps(void) {
         base64_value_from_ascii[i] = 255;
     }
 
-    for(size_t i = 0; i < 16 ; i++)
-        hex_value_from_ascii[(int)hex_digits[i]] = i;
+    for(size_t i = 0; i < 16 ; i++) {
+        hex_value_from_ascii[(int)toupper(hex_digits[i])] = i;
+        hex_value_from_ascii[(int)tolower(hex_digits[i])] = i;
+    }
 
     for(size_t i = 0; i < 64 ; i++)
         base64_value_from_ascii[(int)base64_digits[i]] = i;
@@ -492,12 +494,3 @@ int buffer_unittest(void) {
     buffer_free(wb);
     return errors;
 }
-
-#ifdef ENABLE_H2O
-h2o_iovec_t buffer_to_h2o_iovec(BUFFER *wb) {
-    h2o_iovec_t ret;
-    ret.base = wb->buffer;
-    ret.len = wb->len;
-    return ret;
-}
-#endif