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/* ISC license. */
#include <string.h>
#include <errno.h>
#include <skalibs/posixishard.h>
#include <skalibs/uint16.h>
#include <skalibs/bytestr.h>
#include <s6-networking/ident.h>
static size_t skipspace (char const *s)
{
size_t n = 0 ;
while ((s[n] == ' ') || (s[n] == '\t')) n++ ;
return n ;
}
ssize_t s6net_ident_reply_parse (char const *s, uint16_t rp, uint16_t lp)
{
size_t n = 0 ;
n += skipspace(s+n) ; if (!s[n]) goto err ;
{
size_t i ;
uint16_t u ;
i = uint16_scan(s+n, &u) ; if (!i) goto err ; n += i ;
if (u != rp) goto err ;
n += skipspace(s+n) ; if (!s[n]) goto err ;
if (s[n++] != ',') goto err ;
n += skipspace(s+n) ; if (!s[n]) goto err ;
i = uint16_scan(s+n, &u) ; if (!i) goto err ; n += i ;
if (u != lp) goto err ;
}
n += skipspace(s+n) ; if (!s[n]) goto err ;
if (s[n++] != ':') goto err ;
n += skipspace(s+n) ; if (!s[n]) goto err ;
if (!strncmp(s+n, "ERROR", 5)) goto ERROR ;
if (!strncmp(s+n, "USERID", 6)) goto USERID ;
err:
return (errno = EPROTO, -1) ;
ERROR:
n += 5 ;
n += skipspace(s+n) ; if (!s[n]) goto err ;
if (s[n++] != ':') goto err ;
n += skipspace(s+n) ; if (!s[n]) goto err ;
if (!strncmp(s+n, "INVALID-PORT", 12)) return (errno = EINVAL, 0) ;
if (!strncmp(s+n, "NO-USER", 7)) return (errno = ESRCH, 0) ;
if (!strncmp(s+n, "HIDDEN-USER", 11)) return (errno = EPERM, 0) ;
if (!strncmp(s+n, "UNKNOWN-ERROR", 13)) return (errno = EIO, 0) ;
if (s[n] == 'X') return (errno = EEXIST, 0) ;
goto err ;
USERID:
n += 6 ;
n += skipspace(s+n) ; if (!s[n]) goto err ;
if (s[n++] != ':') goto err ;
n += str_chr(s+n, ':') ; if (!s[n]) goto err ;
n++ ; if ((s[n] == ' ') || (s[n] == '\t')) n++ ;
return n ;
}
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