Lean and mean initial commit

Not much functionality yet

1 files changed, 17 insertions, 0 deletions

diff --git a/scan_asn1rawint.c b/scan_asn1rawint.c
new file mode 100644
index 0000000..6f6f676
--- /dev/null
+++ b/scan_asn1rawint.c
@@ -0,0 +1,17 @@
+#include "asn1.h"
+
+size_t scan_asn1rawint(const char* src,const char* max,size_t len,long* l) {
+  size_t i,j;
+  long m;
+  if (src>=max) return 0;
+  if (*src<0) m=-1; else m=0;
+  for (i=j=0; i<len; ++i,++j) {
+    if ((m==0 && *src==0) || (m==-1 && *src==-1)) --j;
+    m=(m<<8)|(unsigned char)*src;
+    ++src;
+    if (src>max) return 0;
+  }
+  if (j>sizeof(long)) return 0;
+  *l=m;
+  return len;
+}