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55 lines
1.6 KiB
55 lines
1.6 KiB
14 years ago
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/* @(#)dirent.h 1.4 89/06/16 SMI */
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/*
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* Filesystem-independent directory information.
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* Directory entry structures are of variable length.
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* Each directory entry is a struct dirent containing its file number, the
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* offset of the next entry (a cookie interpretable only the filesystem
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* type that generated it), the length of the entry, and the length of the
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* name contained in the entry. These are followed by the name. The
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* entire entry is padded with null bytes to a 4 byte boundary. All names
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* are guaranteed null terminated. The maximum length of a name in a
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* directory is MAXNAMLEN, plus a null byte.
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*/
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#ifndef __sys_dirent_h
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#define __sys_dirent_h
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define dirent GOO_dirent
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struct dirent {
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long d_off; /* offset of next disk dir entry */
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unsigned long d_fileno; /* file number of entry */
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unsigned short d_reclen; /* length of this record */
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unsigned short d_namlen; /* length of string in d_name */
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char d_name[255+1]; /* name (up to MAXNAMLEN + 1) */
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};
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#ifndef _POSIX_SOURCE
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/*
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* It's unlikely to change, but make sure that sizeof d_name above is
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* at least MAXNAMLEN + 1 (more may be added for padding).
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*/
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#define MAXNAMLEN 255
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/*
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* The macro DIRSIZ(dp) gives the minimum amount of space required to represent
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* a directory entry. For any directory entry dp->d_reclen >= DIRSIZ(dp).
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* Specific filesystem types may use this macro to construct the value
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* for d_reclen.
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*/
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#undef DIRSIZ
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#define DIRSIZ(dp) \
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(((sizeof(struct dirent) - (MAXNAMLEN+1) + ((dp)->d_namlen+1)) +3) & ~3)
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#endif /* !_POSIX_SOURCE */
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#ifdef __cplusplus
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}
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#endif
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#endif /* !__sys_dirent_h */
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