bcc/tests/cc/utils.cc at tag_v0.5.0 · devel-hm/bcc

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* 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;

}