mirror of
https://git.hardenedbsd.org/hardenedbsd/HardenedBSD.git
synced 2024-11-17 16:10:46 +01:00
51 lines
809 B
C
51 lines
809 B
C
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <fcntl.h>
|
|
#include <sys/types.h>
|
|
#include <sys/ioctl.h>
|
|
|
|
#include <pccard/card.h>
|
|
|
|
int
|
|
wrattr_main(argc, argv)
|
|
int argc;
|
|
char *argv[];
|
|
{
|
|
int reg,value;
|
|
char name[64], c;
|
|
int fd;
|
|
off_t offs;
|
|
|
|
if (argc != 4)
|
|
{
|
|
fprintf(stderr, "usage: wrmem slot offs value\n");
|
|
exit(1);
|
|
}
|
|
sprintf(name, "/dev/card%d", atoi(argv[1]));
|
|
fd = open(name, 2);
|
|
if (fd < 0)
|
|
{
|
|
perror(name);
|
|
exit(1);
|
|
}
|
|
reg = MDF_ATTR;
|
|
if (ioctl(fd, PIOCRWFLAG, ®))
|
|
{
|
|
perror("ioctl (PIOCRWFLAG)");
|
|
exit(1);
|
|
}
|
|
if (sscanf(argv[2], "%x", ®) != 1 ||
|
|
sscanf(argv[3], "%x", &value) != 1)
|
|
{
|
|
fprintf(stderr, "arg error\n");
|
|
exit(1);
|
|
}
|
|
offs = reg;
|
|
c = value;
|
|
lseek(fd, offs, SEEK_SET);
|
|
if (write(fd, &c, 1) != 1)
|
|
perror(name);
|
|
return 0;
|
|
}
|