Mirror of :pserver:cvs@cvs.fefe.de:/cvs libowfat https://www.fefe.de/libowfat/
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#include "scan.h"
size_t scan_asn1dertag(const char* src,size_t len,unsigned long long* length) {
size_t n;
unsigned long long l=0;
for (n=0; n<len; ++n) {
l=(l<<7) | (src[n]&0x7f);
if (!(src[n]&0x80)) {
return n+1;
if (n==0 && !l) return 0; // DER says: must be encoded minimally
return 0;