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Differential D17386 Diff 48934 usr.sbin/boot0cfg/boot0cfg.c

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usr.sbin/boot0cfg/boot0cfg.c

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static const char fmt0[] = "# flag start chs type" static const char fmt0[] = "# flag start chs type"
" end chs offset size\n"; " end chs offset size\n";
static const char fmt1[] = "%d 0x%02x %4u:%3u:%2u 0x%02x" static const char fmt1[] = "%d 0x%02x %4u:%3u:%2u 0x%02x"
" %4u:%3u:%2u %10u %10u\n"; " %4u:%3u:%2u %10u %10u\n";
static int geom_class_available(const char *); static int geom_class_available(const char *);
static int read_mbr(const char *, u_int8_t **, int); static int read_mbr(const char *, u_int8_t **, int);
static void write_mbr(const char *, int, u_int8_t *, int); static void write_mbr(const char *, int, u_int8_t *, int, int);
static void display_mbr(u_int8_t *); static void display_mbr(u_int8_t *);
static int boot0version(const u_int8_t *); static int boot0version(const u_int8_t *);
static int boot0bs(const u_int8_t *); static int boot0bs(const u_int8_t *);
static void stropt(const char *, int *, int *); static void stropt(const char *, int *, int *);
static int argtoi(const char *, int, int, int); static int argtoi(const char *, int, int, int);
static int set_bell(u_int8_t *, int, int); static int set_bell(u_int8_t *, int, int);
static void usage(void); static void usage(void);
▲ Show 20 Lines • Show All 83 Lines • ▼ Show 20 Lines || t_arg != -1;
/* open the disk and read in the existing mbr. Either here or /* open the disk and read in the existing mbr. Either here or
* when reading the block from disk, we do check for the version * when reading the block from disk, we do check for the version
* and abort if a suitable block is not found. * and abort if a suitable block is not found.
*/ */
mbr_size = read_mbr(disk, &mbr, !B_flag); mbr_size = read_mbr(disk, &mbr, !B_flag);
/* save the existing MBR if we are asked to do so */ /* save the existing MBR if we are asked to do so */
if (fpath) if (fpath)
write_mbr(fpath, O_CREAT | O_TRUNC, mbr, mbr_size); write_mbr(fpath, O_CREAT | O_TRUNC, mbr, mbr_size, 0);
/* /*
* If we are installing the boot loader, read it from disk and copy the * If we are installing the boot loader, read it from disk and copy the
* slice table over from the existing MBR. If not, then point boot0 * slice table over from the existing MBR. If not, then point boot0
* back at the MBR we just read in. After this, boot0 is the data to * back at the MBR we just read in. After this, boot0 is the data to
* write back to disk if we are going to do a write. * write back to disk if we are going to do a write.
*/ */
if (B_flag) { if (B_flag) {
Show All 39 Linesmain(int argc, char *argv[])
boot0[OFF_SERIAL] = vol_id[0]; boot0[OFF_SERIAL] = vol_id[0];
boot0[OFF_SERIAL+1] = vol_id[1]; boot0[OFF_SERIAL+1] = vol_id[1];
boot0[OFF_SERIAL+2] = vol_id[2]; boot0[OFF_SERIAL+2] = vol_id[2];
boot0[OFF_SERIAL+3] = vol_id[3]; boot0[OFF_SERIAL+3] = vol_id[3];
up = 1; /* force update */ up = 1; /* force update */
} }
/* write the MBR back to disk */ /* write the MBR back to disk */
if (up) if (up)
write_mbr(disk, 0, boot0, boot0_size); write_mbr(disk, 0, boot0, boot0_size, vol_id[4] || b0_ver == 1);
/* display the MBR */ /* display the MBR */
if (v_flag) if (v_flag)
display_mbr(boot0); display_mbr(boot0);
/* clean up */ /* clean up */
if (mbr != boot0) if (mbr != boot0)
free(boot0); free(boot0);
▲ Show 20 Lines • Show All 99 Lines • ▼ Show 20 Linesgeom_class_available(const char *name)
geom_deletetree(&mesh); geom_deletetree(&mesh);
return (0); return (0);
} }
/* /*
* Write out the mbr to the specified file. * Write out the mbr to the specified file.
*/ */
static void static void
write_mbr(const char *fname, int flags, u_int8_t *mbr, int mbr_size) write_mbr(const char *fname, int flags, u_int8_t *mbr, int mbr_size,
int disable_dsn)
desUnsubmitted
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des: Break this line before the last `int`, indent continuation by four spaces.
{ {
struct gctl_req *grq; struct gctl_req *grq;
const char *errmsg; const char *errmsg;
char *pname; char *pname;
ssize_t n; ssize_t n;
int fd; int fd;
fd = open(fname, O_WRONLY | flags, 0666); fd = open(fname, O_WRONLY | flags, 0666);
Show All 28 Lineswrite_mbr(const char *fname, int flags, u_int8_t *mbr, int mbr_size,
/* First check that GEOM_PART is available */ /* First check that GEOM_PART is available */
if (geom_class_available("PART") != 0) { if (geom_class_available("PART") != 0) {
grq = gctl_get_handle(); grq = gctl_get_handle();
gctl_ro_param(grq, "class", -1, "PART"); gctl_ro_param(grq, "class", -1, "PART");
gctl_ro_param(grq, "arg0", -1, pname); gctl_ro_param(grq, "arg0", -1, pname);
gctl_ro_param(grq, "verb", -1, "bootcode"); gctl_ro_param(grq, "verb", -1, "bootcode");
gctl_ro_param(grq, "bootcode", mbr_size, mbr); gctl_ro_param(grq, "bootcode", mbr_size, mbr);
gctl_ro_param(grq, "flags", -1, "C"); gctl_ro_param(grq, "flags", -1, "C");
if (disable_dsn)
gctl_ro_param(grq, "skip_dsn", sizeof(int),
desUnsubmitted
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des: Either break the second line, or remove the first and unindent.
&disable_dsn);
errmsg = gctl_issue(grq); errmsg = gctl_issue(grq);
if (errmsg != NULL && errmsg[0] != '\0') if (errmsg != NULL && errmsg[0] != '\0')
errx(1, "GEOM_PART: write bootcode to %s failed: %s", errx(1, "GEOM_PART: write bootcode to %s failed: %s",
fname, errmsg); fname, errmsg);
gctl_free(grq); gctl_free(grq);
} else if (geom_class_available("MBR") != 0) { } else if (geom_class_available("MBR") != 0) {
grq = gctl_get_handle(); grq = gctl_get_handle();
gctl_ro_param(grq, "verb", -1, "write MBR"); gctl_ro_param(grq, "verb", -1, "write MBR");
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