Function init

examples/cfi.c:154–199

* Init. */

 * Init.
 */
void init(int argc, char **argv, char **envp)
{
    environ = envp;
    option_tty   = isatty(STDERR_FILENO);
    option_debug = (getenv("DEBUG") != 0);
    const char *progname = argv[0];

    char *input;
    if (asprintf(&input, "%s.TARGETs.csv", progname) < 0)
        error("failed to create input filename: %s", strerror(errno));
    FILE *stream = fopen(input, "r");
    if (stream == NULL)
        error("failed to open \"%s%s%s\" for reading: %s", YELLOW, input,
            OFF, strerror(errno));
    char c;
    while ((c = getc(stream)) != '\n' && c != EOF)
        ;
    uintptr_t target, direct, indirect, func;
    while (fscanf(stream, "%zx,%zu,%zu,%zu", &target, &direct, &indirect, &func)
        == 4)
    {
        if (indirect)
            target_push(target);
    }
    TARGETs.max = TARGETs.size;
    TARGETs.data = (uintptr_t *)realloc(TARGETs.data,
        TARGETs.max * sizeof(uintptr_t));
    if (TARGETs.data == NULL)
        error("failed to allocate memory: %s", strerror(errno));
    fclose(stream);
    free(input);

    if (asprintf(&input, "%s.DISASM.csv", progname) < 0)
        error("failed to create input filename: %s", strerror(errno));
    stream = fopen(input, "r");
    if (stream == NULL)
        error("failed to open \"%s%s%s\" for reading: %s", YELLOW, input,
            OFF, strerror(errno));
    while ((c = getc(stream)) != '\n' && c != EOF)
        ;
    uintptr_t addr, offset, size;
    while (fscanf(stream, "%zx,%zu,%zu", &addr, &offset, &size) == 3)
        target_range(addr, addr+size);
    fclose(stream);
    free(input);
}