From bedd2e7ccb1595c23e159eaa952ae1b0b5a3d2ad Mon Sep 17 00:00:00 2001
From: Simon Rettberg
Date: Sat, 15 Mar 2014 01:49:50 +0100
Subject: Lean and mean initial commit

Not much functionality yet
---
 fmt_asn1bitstring.c | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 fmt_asn1bitstring.c

(limited to 'fmt_asn1bitstring.c')

diff --git a/fmt_asn1bitstring.c b/fmt_asn1bitstring.c
new file mode 100644
index 0000000..18df19d
--- /dev/null
+++ b/fmt_asn1bitstring.c
@@ -0,0 +1,19 @@
+#include "asn1.h"
+#include "byte.h"
+
+/* like fmt_asn1string, but l is in BITS, not BYTES */
+size_t fmt_asn1bitstring(char* dest,enum asn1_tagclass tc,enum asn1_tagtype tt,enum asn1_tag tag,const char* c,size_t l) {
+  size_t len;
+  size_t actuallen;
+  if (l>(size_t)-100) return (size_t)-1;
+  actuallen=1+(l+7)/8;	/* add one octet to specify the unused bits in the last octet, and calculate octets needed */
+  len=fmt_asn1transparent(dest,tc,tt,tag,actuallen);
+  if (dest) {
+    if (l)
+      dest[len]=7-((l-1)%8);
+    else
+      dest[len]=0;
+    byte_copy(dest+len+1,actuallen-1,c);
+  }
+  return len+actuallen;
+}
-- 
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