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public text v1 · immutable
memset(buf, 0, sizeof(buf));
FD_ZERO(&fds);
FD_SET(fd, &fds);
select(FD_SETSIZE, &fds, NULL, NULL, &timeout);
read(fd,buf,255); //read response "+CMGW: ID"
printf("got response <- %s\n",buf);
memset(buf, 0, sizeof(buf));
FD_ZERO(&fds);
FD_SET(fd, &fds);
select(FD_SETSIZE, &fds, NULL, NULL, &timeout);
read(fd,buf,255); //read response "+CMGW: ID"
printf("got response <- %s\n",buf);