InfoMagic Source Code 1993 July/THE_SOURCE_CODE_CD_ROM.iso/bsd_srcs/usr.sbin/sendmail/src/convtime.c

C/C++ Source or Header | 1991-04-20 | 4.3 KB | 193 lines

/*
 * Copyright (c) 1983 Eric P. Allman
 * Copyright (c) 1988 Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *    This product includes software developed by the University of
 *    California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#ifndef lint
static char sccsid[] = "@(#)convtime.c    5.4 (Berkeley) 6/1/90";
#endif /* not lint */

# include <ctype.h>
# include "useful.h"

/*
**  CONVTIME -- convert time
**
**    Takes a time as an ascii string with a trailing character
**    giving units:
**      s -- seconds
**      m -- minutes
**      h -- hours
**      d -- days (default)
**      w -- weeks
**    For example, "3d12h" is three and a half days.
**
**    Parameters:
**        p -- pointer to ascii time.
**
**    Returns:
**        time in seconds.
**
**    Side Effects:
**        none.
*/

time_t
convtime(p)
    char *p;
{
    register time_t t, r;
    register char c;

    r = 0;
    while (*p != '\0')
    {
        t = 0;
        while (isdigit(c = *p++))
            t = t * 10 + (c - '0');
        if (c == '\0')
            p--;
        switch (c)
        {
          case 'w':        /* weeks */
            t *= 7;

          case 'd':        /* days */
          default:
            t *= 24;

          case 'h':        /* hours */
            t *= 60;

          case 'm':        /* minutes */
            t *= 60;

          case 's':        /* seconds */
            break;
        }
        r += t;
    }

    return (r);
}
/*
**  PINTVL -- produce printable version of a time interval
**
**    Parameters:
**        intvl -- the interval to be converted
**        brief -- if TRUE, print this in an extremely compact form
**            (basically used for logging).
**
**    Returns:
**        A pointer to a string version of intvl suitable for
**            printing or framing.
**
**    Side Effects:
**        none.
**
**    Warning:
**        The string returned is in a static buffer.
*/

# define PLURAL(n)    ((n) == 1 ? "" : "s")

char *
pintvl(intvl, brief)
    time_t intvl;
    bool brief;
{
    static char buf[256];
    register char *p;
    int wk, dy, hr, mi, se;

    if (intvl == 0 && !brief)
        return ("zero seconds");

    /* decode the interval into weeks, days, hours, minutes, seconds */
    se = intvl % 60;
    intvl /= 60;
    mi = intvl % 60;
    intvl /= 60;
    hr = intvl % 24;
    intvl /= 24;
    if (brief)
        dy = intvl;
    else
    {
        dy = intvl % 7;
        intvl /= 7;
        wk = intvl;
    }

    /* now turn it into a sexy form */
    p = buf;
    if (brief)
    {
        if (dy > 0)
        {
            (void) sprintf(p, "%d+", dy);
            p += strlen(p);
        }
        (void) sprintf(p, "%02d:%02d:%02d", hr, mi, se);
        return (buf);
    }

    /* use the verbose form */
    if (wk > 0)
    {
        (void) sprintf(p, ", %d week%s", wk, PLURAL(wk));
        p += strlen(p);
    }
    if (dy > 0)
    {
        (void) sprintf(p, ", %d day%s", dy, PLURAL(dy));
        p += strlen(p);
    }
    if (hr > 0)
    {
        (void) sprintf(p, ", %d hour%s", hr, PLURAL(hr));
        p += strlen(p);
    }
    if (mi > 0)
    {
        (void) sprintf(p, ", %d minute%s", mi, PLURAL(mi));
        p += strlen(p);
    }
    if (se > 0)
    {
        (void) sprintf(p, ", %d second%s", se, PLURAL(se));
        p += strlen(p);
    }

    return (buf + 2);
}