diff options
| -rw-r--r-- | ufs/dir.h | 27 |
1 files changed, 27 insertions, 0 deletions
@@ -1,3 +1,4 @@ +/* Modified from BSD by Michael I. Bushnell for GNU Hurd ufs server. */ /* * Copyright (c) 1982, 1986, 1989, 1993 * The Regents of the University of California. All rights reserved. @@ -41,6 +42,8 @@ #ifndef _DIR_H_ #define _DIR_H_ +#include <endian.h> + /* * A directory consists of some number of blocks of DIRBLKSIZ * bytes, where DIRBLKSIZ is chosen such that it can be transferred @@ -95,12 +98,31 @@ struct direct { #define IFTODT(mode) (((mode) & 0170000) >> 12) #define DTTOIF(dirtype) ((dirtype) << 12) +/* Return the type from a struct direct, paying attention to whether + this filesystem supports the type extension */ +#define DIRECT_TYPE(dp) (direct_symlink_extension ? (dp)->d_type : DT_UNKNOWN) + +/* Return the namlen from a struct direct, paying attention to whether + this filesystem supports the type extension */ +#if (BYTE_ORDER == LITTLE_ENDIAN) +#define DIRECT_NAMLEN(dp) (direct_symlink_extension ? (dp)->d_namlen : \ + (dp)->d_type) +#else +#define DIRECT_NAMLEN(dp) ((dp)->d_namlen) +#endif + /* * The DIRSIZ macro gives the minimum record length which will hold * the directory entry. This requires the amount of space in struct direct * without the d_name field, plus enough space for the name with a terminating * null byte (dp->d_namlen+1), rounded up to a 4 byte boundary. */ +/* In BSD this macro takes a struct direct. Modified by MIB here to + take the namelen (as computed by strlen). */ +#define DIRSIZ(namelen) \ + ((sizeof (struct direct) - (MAXNAMLEN+1)) + (((namelen)+1 + 3) &~ 3)) + +#if 0 /* This is the BSD definition */ #if (BYTE_ORDER == LITTLE_ENDIAN) #define DIRSIZ(oldfmt, dp) \ ((oldfmt) ? \ @@ -110,9 +132,12 @@ struct direct { #define DIRSIZ(oldfmt, dp) \ ((sizeof (struct direct) - (MAXNAMLEN+1)) + (((dp)->d_namlen+1 + 3) &~ 3)) #endif +#endif /* 0 */ + #define OLDDIRFMT 1 #define NEWDIRFMT 0 +#if 0 /* Not used in GNU */ /* * Template for manipulating directories. * Should use struct direct's, but the name field @@ -144,4 +169,6 @@ struct odirtemplate { u_short dotdot_namlen; char dotdot_name[4]; /* ditto */ }; +#endif /* 0 */ + #endif /* !_DIR_H_ */ |