39 lines
1.0 KiB
C
39 lines
1.0 KiB
C
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#include <stdio.h>
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#include <sys/random.h>
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#include "epic_drm.h"
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#define log(what) printf("[epic_drm] " what "\n")
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#define logf(what, ...) printf("[epic_drm] " what "\n", __VA_ARGS__)
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int main() {
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// perform a basic interaction with epic_drm
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log("opening drm");
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int shm = shm_open(SHM_NAME, O_RDWR, 0);
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struct command_channel* chan = mmap(NULL, SHM_SIZE, PROT_READ | PROT_WRITE, MAP_SHARED, shm, 0);
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log("sending get_cmd");
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chan->command = GET_CMD;
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sem_post(&chan->sem_c2s);
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sem_wait(&chan->sem_s2c);
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logf("result: %s", chan->command == SUCCESS ? "success" : "error");
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log("data");
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for (size_t i = 0; i < 64; i++) {
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uint8_t b = ((uint8_t*) &chan->data)[i];
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printf("%02x ", b);
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if (i % 16 == 15) {
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printf("\n");
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}
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}
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printf("...\n");
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log("sending execute_cmd");
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chan->command = EXECUTE_CMD;
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sem_post(&chan->sem_c2s);
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sem_wait(&chan->sem_s2c);
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logf("result: %s", chan->command == SUCCESS ? "success" : "error");
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log("done");
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}
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