122 lines
3.0 KiB
C
122 lines
3.0 KiB
C
/* $NetBSD: decode.c,v 1.1 2015/06/21 06:06:01 mrg Exp $ */
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/*
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* Copyright (c) 1999 Matthew R. Green
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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__RCSID("$NetBSD: decode.c,v 1.1 2015/06/21 06:06:01 mrg Exp $");
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#endif
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#include <sys/types.h>
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#include <sys/time.h>
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#include <ctype.h>
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#include <string.h>
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#include <stdlib.h>
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#include <limits.h>
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#include <err.h>
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#include "libaudio.h"
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void
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decode_int(const char *arg, int *intp)
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{
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char *ep;
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int ret;
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ret = (int)strtoul(arg, &ep, 10);
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if (ep[0] == '\0') {
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*intp = ret;
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return;
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}
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errx(1, "argument `%s' not a valid integer", arg);
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}
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void
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decode_uint(const char *arg, unsigned *intp)
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{
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char *ep;
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unsigned ret;
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ret = (unsigned)strtoul(arg, &ep, 10);
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if (ep[0] == '\0') {
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*intp = ret;
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return;
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}
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errx(1, "argument `%s' not a valid integer", arg);
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}
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void
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decode_time(const char *arg, struct timeval *tvp)
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{
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char *s, *colon, *dot;
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char *copy = strdup(arg);
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int first;
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if (copy == NULL)
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err(1, "could not allocate a copy of %s", arg);
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tvp->tv_sec = tvp->tv_usec = 0;
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s = copy;
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/* handle [hh:]mm:ss.dd */
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if ((colon = strchr(s, ':')) != NULL) {
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*colon++ = '\0';
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decode_int(s, &first);
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tvp->tv_sec = first * 60; /* minutes */
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s = colon;
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if ((colon = strchr(s, ':')) != NULL) {
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*colon++ = '\0';
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decode_int(s, &first);
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tvp->tv_sec += first; /* minutes and hours */
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tvp->tv_sec *= 60;
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s = colon;
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}
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}
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if ((dot = strchr(s, '.')) != NULL) {
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int i, base = 100000;
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*dot++ = '\0';
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for (i = 0; i < 6; i++, base /= 10) {
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if (!dot[i])
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break;
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if (!isdigit((unsigned char)dot[i]))
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errx(1, "argument `%s' is not a value time specification", arg);
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tvp->tv_usec += base * (dot[i] - '0');
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}
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}
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decode_int(s, &first);
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tvp->tv_sec += first;
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free(copy);
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}
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