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/*
* Copyright (C) 2003-2015 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#include "ArgParser.hxx"
#include "Result.hxx"
#include "Chrono.hxx"
#include <limits>
#include <stdlib.h>
bool
check_uint32(Client &client, uint32_t *dst, const char *s)
{
char *test;
*dst = strtoul(s, &test, 10);
if (test == s || *test != '\0') {
command_error(client, ACK_ERROR_ARG,
"Integer expected: %s", s);
return false;
}
return true;
}
bool
check_int(Client &client, int *value_r, const char *s)
{
char *test;
long value;
value = strtol(s, &test, 10);
if (test == s || *test != '\0') {
command_error(client, ACK_ERROR_ARG,
"Integer expected: %s", s);
return false;
}
if (value < std::numeric_limits<int>::min() ||
value > std::numeric_limits<int>::max()) {
command_error(client, ACK_ERROR_ARG,
"Number too large: %s", s);
return false;
}
*value_r = (int)value;
return true;
}
bool
check_range(Client &client, unsigned *value_r1, unsigned *value_r2,
const char *s)
{
char *test, *test2;
long value;
value = strtol(s, &test, 10);
if (test == s || (*test != '\0' && *test != ':')) {
command_error(client, ACK_ERROR_ARG,
"Integer or range expected: %s", s);
return false;
}
if (value == -1 && *test == 0) {
/* compatibility with older MPD versions: specifying
"-1" makes MPD display the whole list */
*value_r1 = 0;
*value_r2 = std::numeric_limits<int>::max();
return true;
}
if (value < 0) {
command_error(client, ACK_ERROR_ARG,
"Number is negative: %s", s);
return false;
}
if (unsigned(value) > std::numeric_limits<unsigned>::max()) {
command_error(client, ACK_ERROR_ARG,
"Number too large: %s", s);
return false;
}
*value_r1 = (unsigned)value;
if (*test == ':') {
value = strtol(++test, &test2, 10);
if (*test2 != '\0') {
command_error(client, ACK_ERROR_ARG,
"Integer or range expected: %s", s);
return false;
}
if (test == test2)
value = std::numeric_limits<int>::max();
if (value < 0) {
command_error(client, ACK_ERROR_ARG,
"Number is negative: %s", s);
return false;
}
if (unsigned(value) > std::numeric_limits<unsigned>::max()) {
command_error(client, ACK_ERROR_ARG,
"Number too large: %s", s);
return false;
}
*value_r2 = (unsigned)value;
} else {
*value_r2 = (unsigned)value + 1;
}
return true;
}
bool
check_unsigned(Client &client, unsigned *value_r, const char *s)
{
unsigned long value;
char *endptr;
value = strtoul(s, &endptr, 10);
if (endptr == s || *endptr != 0) {
command_error(client, ACK_ERROR_ARG,
"Integer expected: %s", s);
return false;
}
if (value > std::numeric_limits<unsigned>::max()) {
command_error(client, ACK_ERROR_ARG,
"Number too large: %s", s);
return false;
}
*value_r = (unsigned)value;
return true;
}
bool
check_bool(Client &client, bool *value_r, const char *s)
{
long value;
char *endptr;
value = strtol(s, &endptr, 10);
if (endptr == s || *endptr != 0 || (value != 0 && value != 1)) {
command_error(client, ACK_ERROR_ARG,
"Boolean (0/1) expected: %s", s);
return false;
}
*value_r = !!value;
return true;
}
bool
check_float(Client &client, float *value_r, const char *s)
{
float value;
char *endptr;
value = strtof(s, &endptr);
if (endptr == s || *endptr != 0) {
command_error(client, ACK_ERROR_ARG,
"Float expected: %s", s);
return false;
}
*value_r = value;
return true;
}
bool
ParseCommandArg(Client &client, SongTime &value_r, const char *s)
{
float value;
bool success = check_float(client, &value, s) && value >= 0;
if (success)
value_r = SongTime::FromS(value);
return success;
}
bool
ParseCommandArg(Client &client, SignedSongTime &value_r, const char *s)
{
float value;
bool success = check_float(client, &value, s);
if (success)
value_r = SignedSongTime::FromS(value);
return success;
}
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