mirror of
https://github.com/cirosantilli/linux-kernel-module-cheat.git
synced 2026-01-23 10:15:57 +01:00
36 lines
637 B
C
36 lines
637 B
C
#define _GNU_SOURCE
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#include <errno.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/ioctl.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include "../ioctl.h"
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int main(int argc, char **argv)
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{
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int fd, ret;
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if (argc < 4) {
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puts("Usage: ./prog <ioctl-file> <cmd> <arg>");
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return EXIT_FAILURE;
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}
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fd = open(argv[1], O_RDONLY);
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if (fd == -1) {
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perror("open");
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return EXIT_FAILURE;
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}
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ret = ioctl(fd, IOCTL0, argv[3]);
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if (ret == -1) {
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perror("ioctl");
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return EXIT_FAILURE;
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}
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printf("ret = %d\n", ret);
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printf("errno = %d\n", errno);
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close(fd);
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return EXIT_SUCCESS;
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}
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