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// SPDX-License-Identifier: BSD-2-Clause
#include <stdio.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <glob.h>
int
main(int argc, char **argv)
{
if (argc != 2) {
dprintf(2, "%s: missing brightness argument\n", argv[0]);
return 1;
}
int fd = open("/sys/class/backlight/apple-panel-bl/brightness", O_WRONLY);
if (fd == -1) {
dprintf(2, "%s: can't open\n", argv[0]);
return 6;
}
ssize_t wl = (write(fd, argv[1], strlen(argv[1])));
if (wl == -1) {
dprintf(2, "%s: can't write\n", argv[0]);
return 7;
} else if ((size_t)wl == strlen(argv[1])) {
} else {
dprintf(2, "%s: incomplete write\n", argv[0]);
return 8;
}
if (close(fd) == -1) {
dprintf(2, "%s: can't close\n", argv[0]);
return 9;
}
return 0;
}
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