2fe8fb192f
There is important information about booting non-ack images in docs/UPDATING. ack/aout-format images can't be built any more, and booting clang/ELF-format ones is a little different. Updating to the new boot monitor is recommended. Changes in this commit: . drop boot monitor -> allowing dropping ack support . facility to copy ELF boot files to /boot so that old boot monitor can still boot fairly easily, see UPDATING . no more ack-format libraries -> single-case libraries . some cleanup of OBJECT_FMT, COMPILER_TYPE, etc cases . drop several ack toolchain commands, but not all support commands (e.g. aal is gone but acksize is not yet). . a few libc files moved to netbsd libc dir . new /bin/date as minix date used code in libc/ . test compile fix . harmonize includes . /usr/lib is no longer special: without ack, /usr/lib plays no kind of special bootstrapping role any more and bootstrapping is done exclusively through packages, so releases depend even less on the state of the machine making them now. . rename nbsd_lib* to lib* . reduce mtree
66 lines
2 KiB
C
66 lines
2 KiB
C
#ifndef _SYS_DIRENT_H_
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#define _SYS_DIRENT_H_
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#include <sys/cdefs.h>
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#include <sys/featuretest.h>
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#include <minix/dirent.h>
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/*
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* The dirent structure defines the format of directory entries returned by
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* the getdents(2) system call.
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*/
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struct dirent { /* Largest entry (8 slots) */
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ino_t d_ino; /* I-node number */
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off_t d_off; /* Offset in directory */
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unsigned short d_reclen; /* Length of this record */
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char d_name[1]; /* Null terminated name */
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};
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#if defined(_NETBSD_SOURCE)
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#define MAXNAMLEN 511
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#define d_fileno d_ino
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#endif
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/*
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* The _DIRENT_ALIGN macro returns the alignment of struct dirent. It
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* is used to check for bogus pointers and to calculate in advance the
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* memory required to store a dirent.
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* Unfortunately Minix doesn't use any standard alignment in dirents
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* at the moment, so, in order to calculate a safe dirent size, we add
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* an arbitrary number of bytes to the structure (_DIRENT_PAD), and we
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* set _DIRENT_ALIGN to zero to pass the pointers checks.
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* Please, FIXME.
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*/
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#define _DIRENT_ALIGN(dp) 0
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#define _DIRENT_PAD 64
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/*
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* The _DIRENT_NAMEOFF macro returns the offset of the d_name field in
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* struct dirent
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*/
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#define _DIRENT_NAMEOFF(dp) \
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((char *)(void *)&(dp)->d_name - (char *)(void *)dp)
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/*
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* The _DIRENT_RECLEN macro gives the minimum record length which will hold
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* a name of size "namlen".
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*/
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#define _DIRENT_RECLEN(dp, namlen) \
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((_DIRENT_NAMEOFF(dp) + (namlen) + 1 + _DIRENT_PAD + _DIRENT_ALIGN(dp)) & \
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~_DIRENT_ALIGN(dp))
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/*
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* The _DIRENT_SIZE macro returns the minimum record length required for
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* name name stored in the current record.
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*/
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#define _DIRENT_SIZE(dp) _DIRENT_RECLEN(dp, strlen(dp->d_name))
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/*
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* The _DIRENT_NEXT macro advances to the next dirent record.
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*/
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#define _DIRENT_NEXT(dp) ((void *)((char *)(void *)(dp) + (dp)->d_reclen))
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/*
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* The _DIRENT_MINSIZE returns the size of an empty (invalid) record.
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*/
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#define _DIRENT_MINSIZE(dp) _DIRENT_RECLEN(dp, 0)
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#endif /* !_SYS_DIRENT_H_ */
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