diff options
Diffstat (limited to 'scan_asn1rawint.c')
-rw-r--r-- | scan_asn1rawint.c | 17 |
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; +} |