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/* ISC license. */
#include <errno.h>
#include <skalibs/fmtscan.h>
#include <skalibs/netstring.h>
#include <skalibs/stralloc.h>
#include <skalibs/uint.h>
int netstring_decode (stralloc *sa, char const *s, unsigned int len)
{
unsigned int nlen ;
register unsigned int pos ;
if (!len) return 0 ;
pos = uint_scan(s, &nlen) ;
if (pos >= len) return (errno = EINVAL, -1) ;
if (s[pos] != ':') return (errno = EINVAL, -1) ;
s += pos+1 ; len -= pos+1 ;
if (len <= nlen) return (errno = EINVAL, -1) ;
if (s[nlen] != ',') return (errno = EINVAL, -1) ;
if (!stralloc_catb(sa, s, nlen)) return -1 ;
return pos + nlen + 2 ;
}
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