Configurable symlink behaviour

[netatalk.git] / include / atalk / adouble.h

diff --git a/include/atalk/adouble.h b/include/atalk/adouble.h
index 0c420d041432ec748331c3c9b7feadefea71a82c..4990022d7e079d5e52dfae04c1f50da0d9883d3b 100644 (file)
--- a/include/atalk/adouble.h
+++ b/include/atalk/adouble.h
@@ -1,5 +1,5 @@
 /*
- * $Id: adouble.h,v 1.51 2010-01-04 13:49:48 franklahm Exp $
+ * $Id: adouble.h,v 1.55 2010-03-30 12:55:26 franklahm Exp $
  * Copyright (c) 1990,1991 Regents of The University of Michigan.
  * All Rights Reserved.
  *
@@ -34,33 +34,7 @@
 #include <config.h>
 #endif
 
-/* -------------------
- * need pread() and pwrite()
- */
-#ifdef HAVE_PREAD
-
-#ifndef HAVE_PWRITE
-#undef HAVE_PREAD
-#endif
-
-#endif
-
-#ifdef HAVE_PWRITE
-#ifndef HAVE_PREAD
-#undef HAVE_PWRITE
-#endif
-#endif
-
-/*
-  Still have to figure out which platforms really
-  need _XOPEN_SOURCE defined for pread.
-*/
-#if defined(HAVE_PREAD) && !defined(SOLARIS) && !defined(__OpenBSD__) && !defined(__NetBSD__) && !defined(__FreeBSD__) && !defined(TRU64)
-#ifdef _XOPEN_SOURCE
-#undef _XOPEN_SOURCE
-#endif
-#define _XOPEN_SOURCE 500
-#endif
+#include <atalk/standards.h>
 
 #include <sys/types.h>
 #include <sys/stat.h>
@@ -78,6 +52,7 @@
 #endif
 
 #include <sys/mman.h>
+
 #ifdef HAVE_SYS_TIME_H
 #include <sys/time.h>
 #endif
@@ -232,8 +207,8 @@ typedef u_int32_t cnid_t;
  */
 
 struct ad_entry {
-    u_int32_t   ade_off;
-    u_int32_t   ade_len;
+    off_t   ade_off;
+    ssize_t   ade_len;
 };
 
 typedef struct adf_lock_t {
@@ -243,12 +218,13 @@ typedef struct adf_lock_t {
 } adf_lock_t;
 
 struct ad_fd {
-    int          adf_fd;
+    int          adf_fd;        /* -1: invalid, -2: symlink */
 
 #ifndef HAVE_PREAD
     off_t        adf_off;
 #endif
 
+    char         *adf_syml;
     int          adf_flags;
     int          adf_excl;
     adf_lock_t   *adf_lock;
@@ -300,7 +276,9 @@ struct adouble_fops {
 #define ADFLAGS_DF        (1<<0)
 #define ADFLAGS_HF        (1<<1)
 #define ADFLAGS_DIR       (1<<2)
+/*
 #define ADFLAGS_NOADOUBLE (1<<3)
+*/
 #define ADFLAGS_V1COMPAT  (1<<4)
 #define ADFLAGS_NOHF      (1<<5)  /* not an error if no ressource fork */
 #define ADFLAGS_RDONLY    (1<<6)  /* don't try readwrite */
@@ -312,10 +290,11 @@ struct adouble_fops {
 /* adouble v2 cnid cache */
 #define ADVOL_NODEV      (1 << 0)
 #define ADVOL_CACHE      (1 << 1)
-/* adouble unix priv */
-#define ADVOL_UNIXPRIV   (1 << 2)
-/* dot files (.DS_Store) are invisible) */
-#define ADVOL_INVDOTS    (1 << 3)
+#define ADVOL_UNIXPRIV   (1 << 2) /* adouble unix priv */
+#define ADVOL_INVDOTS    (1 << 3) /* dot files (.DS_Store) are invisible) */
+#define ADVOL_NOADOUBLE  (1 << 4)
+#define ADVOL_FOLLO_SYML (1 << 5)
+
 
 /* lock flags */
 #define ADLOCK_CLR      (0)
@@ -333,8 +312,12 @@ struct adouble_fops {
 /* synchronization locks */
 #define AD_FILELOCK_BASE (0x80000000)
 #else
+#if _FILE_OFFSET_BITS == 64
+#define AD_FILELOCK_BASE (0x7FFFFFFFFFFFFFFFULL - 9)
+#else
 #define AD_FILELOCK_BASE (0x7FFFFFFF -9)
 #endif
+#endif
 
 /* FIXME:
  * AD_FILELOCK_BASE case
@@ -436,6 +419,8 @@ struct adouble_fops {
 #define ad_get_HF_flags(ad) ((ad)->ad_resource_fork.adf_flags)
 #define ad_get_MD_flags(ad) ((ad)->ad_md->adf_flags)
 
+#define ad_get_syml_opt(ad) (((ad)->ad_options & ADVOL_FOLLO_SYML) ? 0 : O_NOFOLLOW)
+
 /* ad_flush.c */
 extern int ad_rebuild_adouble_header (struct adouble *);
 extern int ad_rebuild_sfm_header (struct adouble *);
@@ -472,9 +457,11 @@ extern int ad_mode        (const char *, int);
 extern int ad_mkdir       (const char *, int);
 extern void ad_init       (struct adouble *, int, int );
 extern int ad_open        (const char *, int, int, int, struct adouble *);
+extern int ad_openat      (int dirfd, const char *, int, int, int, struct adouble *);
 extern int ad_refresh     (struct adouble *);
 extern int ad_stat        (const char *, struct stat *);
 extern int ad_metadata    (const char *, int, struct adouble *);
+extern int ad_metadataat  (int, const char *, int, struct adouble *);
 
 #define ad_open_metadata(name, flags, mode, adp)\
    ad_open(name, ADFLAGS_MD|(flags), O_RDWR |(mode), 0666, (adp))
@@ -545,7 +532,7 @@ extern void *ad_mmapwrite (struct adouble *, const u_int32_t,
 #define ad_munmap(buf, len)  (munmap((buf), (len)))
 
 /* ad_date.c */
-extern int ad_setdate (const struct adouble *, unsigned int, u_int32_t);
+extern int ad_setdate (struct adouble *, unsigned int, u_int32_t);
 extern int ad_getdate (const struct adouble *, unsigned int, u_int32_t *);
 
 /* ad_attr.c */