Allow disabling hexdump header

Signed-off-by: Szczepan Zalega <szczepan@nitrokey.com>

2 files changed, 6 insertions, 4 deletions

diff --git a/include/misc.h b/include/misc.h
index a5d9e6d..cccd830 100644
--- a/include/misc.h
+++ b/include/misc.h
@@ -15,7 +15,7 @@ typename T::CommandPayload get_payload(){
 }
 
 
-    std::string hexdump(const char *p, size_t size);
+    std::string hexdump(const char *p, size_t size, bool print_header=true);
 uint32_t stm_crc32(const uint8_t *data, size_t size);
 }
 }
diff --git a/misc.cc b/misc.cc
index a31d9bc..d004d0f 100644
--- a/misc.cc
+++ b/misc.cc
@@ -6,14 +6,16 @@
 namespace nitrokey {
 namespace misc {
 
-std::string hexdump(const char *p, size_t size) {
+std::string hexdump(const char *p, size_t size, bool print_header) {
   std::stringstream out;
   char formatbuf[128];
   const char *pstart = p;
 
   for (const char *pend = p + size; p < pend;) {
-    snprintf(formatbuf, 128, "%04lx\t", p - pstart);
-    out << formatbuf;
+      if (print_header){
+          snprintf(formatbuf, 128, "%04lx\t", p - pstart);
+          out << formatbuf;
+      }
 
     for (const char *le = p + 16; p < le && p < pend; p++) {
       snprintf(formatbuf, 128, "%02x ", uint8_t(*p));