From 859ed02491d888317019cd24a7da6e1126c11d86 Mon Sep 17 00:00:00 2001
From: David du Colombier <0intro@gmail.com>
Date: Thu, 27 Jul 2017 23:36:34 +0200
Subject: [PATCH] add elfdata function

---
 README.md |  1 +
 elf.h     |  1 +
 str.c     | 15 +++++++++++++++
 3 files changed, 17 insertions(+)

diff --git a/README.md b/README.md
index 2c2dfb0..77e2b5e 100644
--- a/README.md
+++ b/README.md
@@ -67,6 +67,7 @@ int readelf(FILE *f, Fhdr *fp);
 uint8_t* readelfsection(FILE *f, char *name, uint64_t *size, Fhdr *fp);
 void freeelf(Fhdr *fp);
 char* elfclass(uint8_t class);
+char* elfdata(uint8_t data);
 char* elftype(uint16_t type);
 char* elfmachine(uint16_t machine);
 char* elfversion(uint8_t version);
diff --git a/elf.h b/elf.h
index 2fb4f91..20ae3c5 100644
--- a/elf.h
+++ b/elf.h
@@ -51,6 +51,7 @@ int readelf(FILE*, Fhdr*);
 uint8_t* readelfsection(FILE*, char*, uint64_t*, Fhdr*);
 void freeelf(Fhdr*);
 char* elfclass(uint8_t);
+char* elfdata(uint8_t);
 char* elftype(uint16_t);
 char* elfmachine(uint16_t);
 char* elfversion(uint8_t);
diff --git a/str.c b/str.c
index 4dd0dfc..b7cd050 100644
--- a/str.c
+++ b/str.c
@@ -17,6 +17,21 @@ elfclass(uint8_t class)
         return "Unknown class";
 }
 
+static char* datastr[] = {
+	[ELFDATANONE] = "Invalid data encoding",
+	[ELFDATA2LSB] = "Litte-endian",
+	[ELFDATA2MSB] = "Big-endian",
+};
+
+char*
+elfdata(uint8_t data)
+{
+        if(data < nelem(datastr) && datastr[data])
+                return datastr[data];
+
+        return "Unknown data";
+}
+
 char *machinestr[] = {
 	[EM_NONE] = "No machine",
 	[EM_M32] = "AT&T WE 32100",