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Differential D10422 Diff 27528 head/sys/boot/i386/libi386/bioscd.c

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head/sys/boot/i386/libi386/bioscd.c

Show First 20 Lines • Show All 262 Lines • ▼ Show 20 Lines#ifdef BD_SUPPORT_FRAGS
size_t fragsize; size_t fragsize;
fragsize = size % BIOSCD_SECSIZE; fragsize = size % BIOSCD_SECSIZE;
#else #else
if (size % BIOSCD_SECSIZE) if (size % BIOSCD_SECSIZE)
return (EINVAL); return (EINVAL);
#endif #endif
if (rw != F_READ) if ((rw & F_MASK) != F_READ)
return(EROFS); return(EROFS);
dev = (struct i386_devdesc *)devdata; dev = (struct i386_devdesc *)devdata;
unit = dev->d_unit; unit = dev->d_unit;
blks = size / BIOSCD_SECSIZE; blks = size / BIOSCD_SECSIZE;
if (dblk % (BIOSCD_SECSIZE / DEV_BSIZE) != 0) if (dblk % (BIOSCD_SECSIZE / DEV_BSIZE) != 0)
return (EINVAL); return (EINVAL);
dblk /= (BIOSCD_SECSIZE / DEV_BSIZE); dblk /= (BIOSCD_SECSIZE / DEV_BSIZE);
DEBUG("read %d from %lld to %p", blks, dblk, buf); DEBUG("read %d from %lld to %p", blks, dblk, buf);
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