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Differential D7659 Diff 19725 head/lib/libstand/dosfs.c

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head/lib/libstand/dosfs.c

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static int static int
dos_readdir(struct open_file *fd, struct dirent *d) dos_readdir(struct open_file *fd, struct dirent *d)
{ {
/* DOS_FILE *f = (DOS_FILE *)fd->f_fsdata; */ /* DOS_FILE *f = (DOS_FILE *)fd->f_fsdata; */
u_char fn[261]; u_char fn[261];
DOS_DIR dd; DOS_DIR dd;
size_t res; size_t res;
u_int chk, i, x, xdn; u_int chk, x, xdn;
int err; int err;
x = chk = 0; x = chk = 0;
while (1) { while (1) {
xdn = x; xdn = x;
x = 0; x = 0;
err = dos_read(fd, &dd, sizeof(dd), &res); err = dos_read(fd, &dd, sizeof(dd), &res);
if (err) if (err)
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*/ */
static int static int
lookup(DOS_FS *fs, u_int clus, const char *name, DOS_DE **dep) lookup(DOS_FS *fs, u_int clus, const char *name, DOS_DE **dep)
{ {
static DOS_DIR dir[DEPSEC]; static DOS_DIR dir[DEPSEC];
u_char lfn[261]; u_char lfn[261];
u_char sfn[13]; u_char sfn[13];
u_int nsec, lsec, xdn, chk, sec, ent, x; u_int nsec, lsec, xdn, chk, sec, ent, x;
int err, ok, i; int err, ok;
if (!clus) if (!clus)
for (ent = 0; ent < 2; ent++) for (ent = 0; ent < 2; ent++)
if (!strcasecmp(name, dotstr[ent])) { if (!strcasecmp(name, dotstr[ent])) {
*dep = dot + ent; *dep = dot + ent;
return 0; return 0;
} }
if (!clus && fs->fatsz == 32) if (!clus && fs->fatsz == 32)
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{ {
u_char buf[4]; u_char buf[4];
u_char *s; u_char *s;
u_int x, offset, off, n, nbyte, lsec; u_int x, offset, off, n, nbyte, lsec;
struct devdesc *dd = fs->fd->f_devdata; struct devdesc *dd = fs->fd->f_devdata;
int err = 0; int err = 0;
if (fat.unit != dd->d_unit) { if (fat.unit != dd->d_unit) {
/* fat cache was changed to another device, dont use it */ /* fat cache was changed to another device, don't use it */
err = ioread(fs, secbyt(fs->lsnfat) + fatoff(fs->fatsz, *c), buf, err = ioread(fs, secbyt(fs->lsnfat) + fatoff(fs->fatsz, *c), buf,
fs->fatsz != 32 ? 2 : 4); fs->fatsz != 32 ? 2 : 4);
if (err) if (err)
return err; return (err);
} else { } else {
offset = fatoff(fs->fatsz, *c); offset = fatoff(fs->fatsz, *c);
nbyte = fs->fatsz != 32 ? 2 : 4; nbyte = fs->fatsz != 32 ? 2 : 4;
s = buf; s = buf;
if ((off = offset & (SECSIZ - 1))) { if ((off = offset & (SECSIZ - 1))) {
offset -= off; offset -= off;
lsec = bytsec(offset); lsec = bytsec(offset);
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