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/*
* buftvtots - pull a Unix-format (struct timeval) time stamp out of
* an octet stream and convert it to a l_fp time stamp.
* This is useful when using the clock line discipline.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "ntp_fp.h"
#include "ntp_unixtime.h"
int
buftvtots(
const char *bufp,
l_fp *ts
)
{
register const u_char *bp;
register u_long sec;
register u_long usec;
#ifdef WORDS_BIGENDIAN
bp = (const u_char *)bufp;
sec = (u_long)*bp++ & 0xff;
sec <<= 8;
sec += (u_long)*bp++ & 0xff;
sec <<= 8;
sec += (u_long)*bp++ & 0xff;
sec <<= 8;
sec += (u_long)*bp++ & 0xff;
usec = (u_long)*bp++ & 0xff;
usec <<= 8;
usec += (u_long)*bp++ & 0xff;
usec <<= 8;
usec += (u_long)*bp++ & 0xff;
usec <<= 8;
usec += (u_long)*bp & 0xff;
#else
bp = (const u_char *)bufp + 7;
usec = (u_long)*bp-- & 0xff;
usec <<= 8;
usec += (u_long)*bp-- & 0xff;
usec <<= 8;
usec += (u_long)*bp-- & 0xff;
usec <<= 8;
usec += (u_long)*bp-- & 0xff;
sec = (u_long)*bp-- & 0xff;
sec <<= 8;
sec += (u_long)*bp-- & 0xff;
sec <<= 8;
sec += (u_long)*bp-- & 0xff;
sec <<= 8;
sec += (u_long)*bp & 0xff;
#endif
ts->l_ui = sec + (u_long)JAN_1970;
if (usec > 999999)
return 0;
TVUTOTSF(usec, ts->l_uf);
return 1;
}
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