1 files changed, 90 insertions, 0 deletions
diff --git a/src/tools/util.c b/src/tools/util.c
new file mode 100644
index 0000000..3c1f5aa
--- /dev/null
+++ b/src/tools/util.c
@@ -0,0 +1,90 @@
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <stdint.h>
+
+#include "util.h"
+
+int32_t ReadInt32M(FILE *fp)
+{
+	unsigned char d[4];
+	
+	fread(d, 1, 4, fp);
+	
+	return (d[0] << 24) | (d[1] << 16) | (d[2] << 8) | (d[3] << 0);
+}
+
+int32_t ReadInt24M(FILE *fp)
+{
+	unsigned char d[3];
+	
+	fread(d, 1, 3, fp);
+	
+	return (d[0] << 16) | (d[1] << 8) | (d[2] << 0);
+}
+
+int16_t ReadInt16M(FILE *fp)
+{
+	unsigned char d[2];
+	
+	fread(d, 1, 2, fp);
+	
+	return (d[0] << 8) | (d[1] << 0);
+}
+
+int32_t ReadInt32L(FILE *fp)
+{
+	unsigned char d[4];
+	
+	fread(d, 1, 4, fp);
+	
+	return (d[3] << 24) | (d[2] << 16) | (d[1] << 8) | (d[0] << 0);
+}
+
+int32_t ReadInt24L(FILE *fp)
+{
+	unsigned char d[3];
+	
+	fread(d, 1, 3, fp);
+	
+	return (d[2] << 16) | (d[1] << 8) | (d[0] << 0);
+}
+
+int16_t ReadInt16L(FILE *fp)
+{
+	unsigned char d[2];
+	
+	fread(d, 1, 2, fp);
+	
+	return (d[1] << 8) | (d[0] << 0);
+}
+
+int8_t ReadInt8(FILE *fp)
+{
+	unsigned char d[1];
+	
+	fread(d, 1, 1, fp);
+	
+	return d[0];
+}
+
+int filelength(int filedes)
+{
+	struct stat buf;
+	
+	if (fstat(filedes, &buf) == -1) 
+		return -1;
+	
+	return buf.st_size;
+}
+
+int fsize(char *file_name)
+{
+	struct stat buf;
+	
+	if (stat(file_name, &buf) == -1)
+		return -1;
+	
+	return buf.st_size;
+}