f19a4bf1c4
This patch include various fixes to NBSD includes. - unistd.h: Avoid different linkages on non-_NETBSD_SOURCE compilation; - stdlib.h: remove devname declaration. - sys/select.h: Add _MINIX specific flags. - limits.h: Add SYMLOOP_MAX and SYMLINK_MAX - time.h: Fix CLOCKS_PER_SEC and remove BSD's timer_t, as it confuses minix own specific timers. - utmp.h: Set Minix-specific paths and use Minix utmp format. - param.h: Do not set BSD4_4, as this mostly means sa_len in struct sock_addr. - arch/i386/include/param.h: include <machine/vmparam.h> to add PAGE_SIZE and related macros, defined round_page() and trunc_page() for minix compatibility. - dirent.h: remove DIRBLKSIZ and fix d_ino/d_fileno. - sys/dir.h: ADD from existing includes and edit include conditions. - sys/dirent.h: include <minix/dirent.h>, fix d_ino/d_fileno. - sys/fd_set.h: set default FD_SETSIZE at __MINIX_OPENMAX, as the default NetBSD value is too big and cause vfs to return an error. - sys/cdefs.h: Always include <minix/ansi.h> - minix/paths.h: Add Minix-specific paths. - minix/dirent.h: ADD, keep only "direct" and "flex"definitions. - minix/types.h: include <minix/ansi.h> - sys/Makefile: add sys/dirent.h and statfs.h (forgot!) - minix/Makefile: add minix/dirent.h nbsd_include/minix-port.patch updated accordingly.
70 lines
2.1 KiB
C
70 lines
2.1 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 d_fileno d_ino
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#endif
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#define _DIRENT_NAME_LEN 61 /* Backward compatibility with Minix. */
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#if defined(_NETBSD_SOURCE)
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#define MAXNAMLEN _DIRENT_NAME_LEN
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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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