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/*
* Copyright (c) 2017 IBM Corporation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <stdarg.h>
#include <stdio.h>
int cmd_scanf(const char *cmd, const char *fmt, ...) {
va_list args;
FILE *pipe;
va_start(args, fmt);
pipe = popen(cmd, "r");
if (pipe == NULL) {
va_end(args);
return -1;
}
vfscanf(pipe, fmt, args);
va_end(args);
pclose(pipe);
return 0;
}
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