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_asn1sintpayload.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 fmt_asn1sintpayload.c

(limited to 'fmt_asn1sintpayload.c')

diff --git a/fmt_asn1sintpayload.c b/fmt_asn1sintpayload.c
new file mode 100644
index 0000000..257135e
--- /dev/null
+++ b/fmt_asn1sintpayload.c
@@ -0,0 +1,22 @@
+#include "asn1.h"
+
+size_t fmt_asn1sintpayload(char* dest,signed long l) {
+  size_t needed=sizeof l,i;
+  signed long tmp=0x7f;
+  if (l>=0) return fmt_asn1intpayload(dest,l);
+  for (i=1; i<needed; ++i) {
+    /* assumes two's complement */
+    if ((l|tmp) == -1)
+      break;
+    tmp=(tmp<<8)|0xff;
+  }
+  if (dest) {
+    size_t j=i;
+    while (j) {
+      --j;
+      *dest=(l>>(j*8))&0xff;
+      ++dest;
+    }
+  }
+  return i;
+}
-- 
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