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25 lines
382 B
25 lines
382 B
// SPDX-License-Identifier: GPL-2.0 |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <unistd.h> |
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#include <fcntl.h> |
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int main(void) |
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{ |
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int fd = open("/dev/watchdog", O_WRONLY); |
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int ret = 0; |
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if (fd == -1) { |
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perror("watchdog"); |
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exit(EXIT_FAILURE); |
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} |
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while (1) { |
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ret = write(fd, "\0", 1); |
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if (ret != 1) { |
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ret = -1; |
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break; |
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} |
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sleep(10); |
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} |
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close(fd); |
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return ret; |
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}
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