diff options
Diffstat (limited to 'usr.sbin/pccard/pccardc/rdattr.c')
| -rw-r--r-- | usr.sbin/pccard/pccardc/rdattr.c | 44 |
1 files changed, 20 insertions, 24 deletions
diff --git a/usr.sbin/pccard/pccardc/rdattr.c b/usr.sbin/pccard/pccardc/rdattr.c index 8d28ed7..1f90c77 100644 --- a/usr.sbin/pccard/pccardc/rdattr.c +++ b/usr.sbin/pccard/pccardc/rdattr.c @@ -24,11 +24,13 @@ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ +#include <err.h> #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <fcntl.h> #include <sys/ioctl.h> + #include <pccard/cardinfo.h> int @@ -42,36 +44,30 @@ rdattr_main(argc, argv) int fd; off_t offs; - if (argc != 4) { - fprintf(stderr, "usage: %s rdattr slot offs length\n", argv[0]); - exit(1); - } + if (argc != 4) + errx(1, "Usage: %s rdattr slot offs length", argv[0]); + sprintf(name, CARD_DEVICE, atoi(argv[1])); fd = open(name, O_RDONLY); - if (fd < 0) { - perror(name); - exit(1); - } + if (fd < 0) + err(1, "%s", name); + reg = MDF_ATTR; - if (ioctl(fd, PIOCRWFLAG, ®)) { - perror("ioctl (PIOCRWFLAG)"); - exit(1); - } + if (ioctl(fd, PIOCRWFLAG, ®)) + err(1, "ioctl (PIOCRWFLAG)"); + if (sscanf(argv[2], "%x", ®) != 1 || - sscanf(argv[3], "%x", &length) != 1) { - fprintf(stderr, "arg error\n"); - exit(1); - } + sscanf(argv[3], "%x", &length) != 1) + errx(1, "arg error"); + offs = reg; - if ((buf = malloc(length)) == 0) { - perror(name); - exit(1); - } + if ((buf = malloc(length)) == 0) + errx(1, "malloc failed"); + lseek(fd, offs, SEEK_SET); - if (read(fd, buf, length) != length) { - perror(name); - exit(1); - } + if (read(fd, buf, length) != length) + err(1, "%s", name); + for (i = 0; i < length; i++) { if (i % 16 == 0) { printf("%04x: ", (int) offs + i); |
