dist/ntp/libntp/tvtoa.c

   1 /*      $NetBSD$        */
   2
   3 /*
   4  * tvtoa - return an asciized representation of a struct timeval
   5  */
   6
   7 #include "lib_strbuf.h"
   8
   9 #if defined(VMS)
  10 # include "ntp_fp.h"
  11 #endif /* VMS */
  12 #include "ntp_stdlib.h"
  13 #include "ntp_unixtime.h"
  14
  15 #include <stdio.h>
  16
  17 char *
  18 tvtoa(
  19         const struct timeval *tv
  20         )
  21 {
  22         register char *buf;
  23         register u_long sec;
  24         register u_long usec;
  25         register int isneg;
  26
  27         if (tv->tv_sec < 0 || tv->tv_usec < 0) {
  28                 sec = -tv->tv_sec;
  29                 usec = -tv->tv_usec;
  30                 isneg = 1;
  31         } else {
  32                 sec = tv->tv_sec;
  33                 usec = tv->tv_usec;
  34                 isneg = 0;
  35         }
  36
  37         LIB_GETBUF(buf);
  38
  39         (void) sprintf(buf, "%s%lu.%06lu", (isneg?"-":""), sec, usec);
  40         return buf;
  41 }