/*
- * $Id: ad_flush.c,v 1.4 2002-09-29 17:39:59 didg Exp $
+ * $Id: ad_flush.c,v 1.8 2006-09-29 09:39:16 didg Exp $
*
* Copyright (c) 1990,1991 Regents of The University of Michigan.
* All Rights Reserved.
*/
#ifdef HAVE_CONFIG_H
-#include "config.h"
+#include <config.h>
#endif /* HAVE_CONFIG_H */
+#include <string.h>
+#include <atalk/adouble.h>
+
#include <stdio.h>
#include <stdlib.h>
-#include <string.h>
-#ifdef HAVE_FCNTL_H
-#include <fcntl.h>
-#endif /* HAVE_FCNTL_H */
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif /* HAVE_UNISTD_H */
-#include <sys/types.h>
-#include <sys/mman.h>
#include <errno.h>
-#include <netatalk/endian.h>
-#include <atalk/adouble.h>
-
#include "ad_private.h"
+#if AD_VERSION == AD_VERSION1
+
+#define EID_DISK(a) (a)
+
+#else
+
+static const u_int32_t set_eid[] = {
+0,1,2,3,4,5,6,7,8,
+9,10,11,12,13,14,15,
+AD_DEV, AD_INO, AD_SYN, AD_ID
+};
-/* rebuild the header */
-void ad_rebuild_header(struct adouble *ad)
+#define EID_DISK(a) (set_eid[a])
+#endif
+
+/* rebuild the adouble header
+ * XXX should be in a separate file ?
+*/
+int ad_rebuild_adouble_header(struct adouble *ad)
{
u_int32_t eid;
u_int32_t temp;
if ( ad->ad_eid[ eid ].ade_off == 0 ) {
continue;
}
- temp = htonl( eid );
+ temp = htonl( EID_DISK(eid) );
memcpy(buf, &temp, sizeof( temp ));
buf += sizeof( temp );
}
nent = htons( nent );
memcpy(nentp, &nent, sizeof( nent ));
+ return ad_getentryoff(ad, ADEID_RFORK);
}
+/* -------------------
+ * XXX copy only header with same size or comment
+ * doesn't work well for adouble with different version.
+ *
+*/
+int ad_copy_header(struct adouble *add, struct adouble *ads)
+{
+ u_int32_t eid;
+ int len;
-int ad_flush( ad, adflags )
- struct adouble *ad;
- int adflags;
+ for ( eid = 0; eid < ADEID_MAX; eid++ ) {
+ if ( ads->ad_eid[ eid ].ade_off == 0 ) {
+ continue;
+ }
+
+ if ( add->ad_eid[ eid ].ade_off == 0 ) {
+ continue;
+ }
+
+ len = ads->ad_eid[ eid ].ade_len;
+ if (!len) {
+ continue;
+ }
+
+ if (eid != ADEID_COMMENT && add->ad_eid[ eid ].ade_len != len ) {
+ continue;
+ }
+
+ ad_setentrylen( add, eid, len );
+ memcpy( ad_entry( add, eid ), ad_entry( ads, eid ), len );
+ }
+ add->ad_rlen = ads->ad_rlen;
+ return 0;
+}
+
+/* ------------------- */
+int ad_rebuild_sfm_header(struct adouble *ad)
{
-#ifndef USE_MMAPPED_HEADERS
- int len;
-#endif /* ! USE_MMAPPED_HEADERS */
+ u_int32_t eid;
+ u_int32_t temp;
+
+ u_int16_t attr;
+ char *buf, *nentp;
- if (( adflags & ADFLAGS_HF ) && ( ad->ad_hf.adf_flags & O_RDWR )) {
- /* sync our header */
- ad_rebuild_header(ad);
+ /*
+ * Rebuild any header information that might have changed.
+ */
+ buf = ad->ad_data;
+ /* FIXME */
+// temp = htonl( ad->ad_magic );
+ temp = ad->ad_magic;
+ memcpy(buf, &temp, sizeof( temp ));
+
+// temp = htonl( ad->ad_version );
+ temp = ad->ad_version;
+ memcpy(buf +4, &temp, sizeof( temp ));
-#ifdef USE_MMAPPED_HEADERS
- /* now sync it */
-#ifdef MS_SYNC
- msync(ad->ad_data, ad_getentryoff(ad, ADEID_RFORK),
- MS_SYNC | MS_INVALIDATE);
-#else
- msync(ad->ad_data, ad_getentryoff(ad, ADEID_RFORK));
-#endif /* MS_SYNC */
+ /* need to save attrib */
+ if (!ad_getattr(ad, &attr)) {
+ attr &= ~htons(ATTRBIT_DOPEN | ATTRBIT_ROPEN);
-#else /* USE_MMAPPED_HEADERS */
- if ( ad->ad_hf.adf_off != 0 ) {
- if ( lseek( ad->ad_hf.adf_fd, 0L, SEEK_SET ) < 0L ) {
- return( -1 );
- }
- ad->ad_hf.adf_off = 0;
- }
+ memcpy(buf +48 +4, &attr, sizeof(attr));
+
+ }
+ return AD_SFM_LEN;
+}
+
+
+int ad_flush( ad )
+ struct adouble *ad;
+{
+ int len;
- /* now flush it out */
- len = ad_getentryoff(ad, ADEID_RFORK);
- if (write( ad->ad_hf.adf_fd, ad->ad_data, len) != len) {
+ if (( ad->ad_md->adf_flags & O_RDWR )) {
+ /* sync our header */
+ if (ad->ad_rlen > 0xffffffff) {
+ ad_setentrylen(ad, ADEID_RFORK, 0xffffffff);
+ }
+ else {
+ ad_setentrylen(ad, ADEID_RFORK, ad->ad_rlen);
+ }
+ len = ad->ad_ops->ad_rebuild_header(ad);
+
+ if (adf_pwrite(ad->ad_md, ad->ad_data, len, 0) != len) {
if ( errno == 0 ) {
errno = EIO;
}
return( -1 );
}
- ad->ad_hf.adf_off = len;
-#endif /* USE_MMAPPED_HEADERS */
}
return( 0 );
{
int err = 0;
- if (( adflags & ADFLAGS_DF ) && ad->ad_df.adf_fd != -1 &&
- !(--ad->ad_df.adf_refcount)) {
- if ( close( ad->ad_df.adf_fd ) < 0 ) {
+ if (( adflags & ADFLAGS_DF ) && ad_data_fileno(ad) != -1 &&
+ !(--ad->ad_data_fork.adf_refcount)) {
+ if ( close( ad_data_fileno(ad) ) < 0 ) {
err = -1;
}
- ad->ad_df.adf_fd = -1;
- adf_lock_free(&ad->ad_df);
+ ad_data_fileno(ad) = -1;
+ adf_lock_free(&ad->ad_data_fork);
}
- if (( adflags & ADFLAGS_HF ) && ad->ad_hf.adf_fd != -1 &&
- !(--ad->ad_hf.adf_refcount)) {
-#ifdef USE_MMAPPED_HEADERS
- if (ad->ad_data != MAP_FAILED)
- munmap(ad->ad_data, ad_getentryoff(ad, ADEID_RFORK));
-#endif /* USE_MMAPPED_HEADERS */
- if ( close( ad->ad_hf.adf_fd ) < 0 ) {
+ if (!( adflags & ADFLAGS_HF )) {
+ return err;
+ }
+
+ /* meta /resource fork */
+
+ if ( ad_meta_fileno(ad) != -1 && !(--ad->ad_md->adf_refcount)) {
+ if ( close( ad_meta_fileno(ad) ) < 0 ) {
err = -1;
}
- ad->ad_hf.adf_fd = -1;
- adf_lock_free(&ad->ad_hf);
+ ad_meta_fileno(ad) = -1;
+ adf_lock_free(ad->ad_md);
}
- return( err );
+ if (ad->ad_flags != AD_VERSION1_SFM) {
+ return err;
+ }
+
+ if ((adflags & ADFLAGS_DIR)) {
+ return err;
+ }
+
+ if ( ad_reso_fileno(ad) != -1 && !(--ad->ad_resource_fork.adf_refcount)) {
+ if ( close( ad_reso_fileno(ad) ) < 0 ) {
+ err = -1;
+ }
+ ad_reso_fileno(ad) = -1;
+ adf_lock_free(&ad->ad_resource_fork);
+ }
+
+ return err;
}
projects / netatalk.git / blobdiff