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      1 /*
      2  * Copyright (C) 2008 The Android Open Source Project
      3  * All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  *  * Redistributions of source code must retain the above copyright
      9  *    notice, this list of conditions and the following disclaimer.
     10  *  * Redistributions in binary form must reproduce the above copyright
     11  *    notice, this list of conditions and the following disclaimer in
     12  *    the documentation and/or other materials provided with the
     13  *    distribution.
     14  *
     15  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     16  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     17  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
     18  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
     19  * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
     20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
     21  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
     22  * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
     23  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
     24  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
     25  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     26  * SUCH DAMAGE.
     27  */
     28 #include <ctype.h>
     29 #include <inttypes.h>
     30 #include <stdlib.h>
     31 #include <sys/time.h>
     32 
     33 char * strtotimeval (const char *str, struct timeval *ts)
     34 {
     35     int n;
     36     char *s, *s0;
     37     long  fs;	/* Fractional seconds */
     38 
     39     ts->tv_sec = strtoumax(str, &s, 10);
     40     fs = 0;
     41 
     42     if ( *s == '.' ) {
     43 	int  count;
     44 
     45         s0 = s+1;
     46 
     47 	/* read up to 6 digits */
     48 	fs    = 0;
     49 	count = 0;
     50 	while ( *s && isdigit(*s) )
     51 	{
     52             if ( ++count < 7 )
     53 	        fs = fs*10 + (*s - '0');
     54 	    s++;
     55 	}
     56 
     57 	for ( ; count < 6; count++ )
     58 	    fs *= 10;
     59     }
     60 
     61     ts->tv_usec = fs;
     62     return s;
     63 }
     64