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675593221c
CCAN includes a little utility called "namespacize" which prepends ccan_ to all public methods of a module, and fixes up any dependencies it finds. It's a little primitive, but it works here. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
55 lines
1.3 KiB
C
55 lines
1.3 KiB
C
#include <stdlib.h>
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#include <stdbool.h>
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#include <time.h>
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#include <ccan/list/list.h>
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#include "helper.h"
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#define ANSWER_TO_THE_ULTIMATE_QUESTION_OF_LIFE_THE_UNIVERSE_AND_EVERYTHING \
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(42)
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struct opaque {
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struct ccan_list_node list;
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size_t secret_offset;
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char secret_drawer[42];
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};
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static bool not_randomized = true;
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struct opaque *create_opaque_blob(void)
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{
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struct opaque *blob = calloc(1, sizeof(struct opaque));
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if (not_randomized) {
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srandom((int)time(NULL));
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not_randomized = false;
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}
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blob->secret_offset = random() % (sizeof(blob->secret_drawer));
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blob->secret_drawer[blob->secret_offset] =
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ANSWER_TO_THE_ULTIMATE_QUESTION_OF_LIFE_THE_UNIVERSE_AND_EVERYTHING;
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return blob;
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}
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bool if_blobs_know_the_secret(struct opaque *blob)
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{
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bool answer = true;
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int i;
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for (i = 0; i < sizeof(blob->secret_drawer) /
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sizeof(blob->secret_drawer[0]); i++)
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if (i != blob->secret_offset)
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answer = answer && (blob->secret_drawer[i] == 0);
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else
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answer = answer &&
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(blob->secret_drawer[blob->secret_offset] ==
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ANSWER_TO_THE_ULTIMATE_QUESTION_OF_LIFE_THE_UNIVERSE_AND_EVERYTHING);
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return answer;
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}
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void destroy_opaque_blob(struct opaque *blob)
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{
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free(blob);
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}
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