Function queryCmdPid

src/program/utils.cpp:154–197

}

std::string queryCmdPid(const char **command, pid_t* popen_pid)
{
    std::string outputstr;
    int p[2];
    FILE *output;
    pid_t pid;

    if (pipe(p) != 0)
        return "";

    pid = fork();

    if (pid < 0)
        return "";
    else if (pid == 0) {
        close(p[STDIN_FILENO]);
        dup2(p[STDOUT_FILENO], STDOUT_FILENO);

        execvp(*command, const_cast<char* const*>(command));
        perror("execvp");
        _exit(1);
    }

    *popen_pid = pid;

    close(p[STDOUT_FILENO]);
    output = fdopen(p[STDIN_FILENO], "r"); 
    
    if (output != NULL) {
        char buf[256];
        if (fgets(buf, 256, output) != 0) {
            outputstr = buf;
        }
    }

    /* Trim the value */
    size_t end = outputstr.find_last_not_of(" \n\r\t\f\v");
    outputstr = (end == std::string::npos) ? "" : outputstr.substr(0, end + 1);

    /* Close pipe */
    fclose(output);

    return outputstr;
}

uint64_t getSymbolAddress(const char* symbol, const char* file)
{