Imported reiserfsprogs-3.6.20
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/*
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* Copyright 2000-2004 by Hans Reiser, licensing governed by
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* reiserfsprogs/README
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*/
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include "reiserfs/libreiserfs.h"
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <time.h>
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/* access to fields of stat data (both v1 and v2) */
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static void reiserfs_stat_field (int field,
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reiserfs_ih_t * ih,
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void * sd,
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void * value,
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int set)
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{
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if (reiserfs_ih_get_format (ih) == KEY_FORMAT_1) {
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reiserfs_sd_v1_t * sd_v1 = sd;
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switch (field) {
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case STAT_MODE:
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if (set)
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sd_v1->sd_mode = cpu_to_le16 (*(__u16 *)value);
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else
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*(__u16 *)value = le16_to_cpu (sd_v1->sd_mode);
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break;
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case STAT_SIZE:
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/* value must point to 64 bit int */
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if (set)
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sd_v1->sd_size = cpu_to_le32 (*(__u64 *)value);
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else
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*(__u64 *)value = le32_to_cpu (sd_v1->sd_size);
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break;
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case STAT_BLOCKS:
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if (set)
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sd_v1->u.sd_blocks = cpu_to_le32 (*(__u32 *)value);
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else
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*(__u32 *)value = le32_to_cpu (sd_v1->u.sd_blocks);
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break;
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case STAT_NLINK:
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/* value must point to 32 bit int */
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if (set)
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sd_v1->sd_nlink = cpu_to_le16 (*(__u32 *)value);
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else
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*(__u32 *)value = le16_to_cpu (sd_v1->sd_nlink);
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break;
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case STAT_FDB:
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if (set)
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sd_v1->sd_fdb = cpu_to_le32 (*(__u32 *)value);
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else
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*(__u32 *)value = le32_to_cpu (sd_v1->sd_fdb);
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break;
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default:
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reiserfs_panic ("reiserfs_stat_set: unknown field of old stat data");
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}
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} else {
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reiserfs_sd_t * sd_v2 = sd;
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switch (field) {
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case STAT_MODE:
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if (set)
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sd_v2->sd_mode = cpu_to_le16 (*(__u16 *)value);
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else
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*(__u16 *)value = le16_to_cpu (sd_v2->sd_mode);
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break;
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case STAT_SIZE:
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if (set)
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sd_v2->sd_size = cpu_to_le64 (*(__u64 *)value);
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else
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*(__u64 *)value = le64_to_cpu (sd_v2->sd_size);
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break;
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case STAT_BLOCKS:
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if (set)
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sd_v2->sd_blocks = cpu_to_le32 (*(__u32 *)value);
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else
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*(__u32 *)value = le32_to_cpu (sd_v2->sd_blocks);
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break;
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case STAT_NLINK:
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if (set)
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sd_v2->sd_nlink = cpu_to_le32 (*(__u32 *)value);
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else
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*(__u32 *)value = le32_to_cpu (sd_v2->sd_nlink);
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break;
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case STAT_FDB:
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default:
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reiserfs_panic ("reiserfs_stat_set: unknown field of new stat data");
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}
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}
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}
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void reiserfs_stat_set (int field, reiserfs_ih_t * ih,
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void * sd, void * value)
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{
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reiserfs_stat_field(field, ih, sd, value, 1/*set*/);
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}
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void reiserfs_stat_get (int field, reiserfs_ih_t * ih,
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void * sd, void * value)
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{
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reiserfs_stat_field(field, ih, sd, value, 0/*get*/);
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}
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/* prepare new or old stat data for the new directory */
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void reiserfs_stat_init (int blocksize, int key_format,
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__u32 dirid, __u32 objectid,
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reiserfs_ih_t * ih, void * sd)
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{
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memset (ih, 0, REISERFS_IH_SIZE);
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reiserfs_key_set_did (&ih->ih_key, dirid);
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reiserfs_key_set_oid (&ih->ih_key, objectid);
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reiserfs_key_set_off1 (&ih->ih_key, OFFSET_SD);
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reiserfs_key_set_uni (&ih->ih_key, 0);
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reiserfs_ih_set_format (ih, key_format);
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reiserfs_ih_set_free (ih, MAX_US_INT);
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if (key_format == KEY_FORMAT_2) {
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reiserfs_sd_t *sd_v2 = (reiserfs_sd_t *)sd;
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reiserfs_ih_set_len (ih, REISERFS_SD_SIZE);
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reiserfs_set_sd_v2_mode (sd_v2, S_IFDIR + 0755);
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reiserfs_set_sd_v2_nlink (sd_v2, 2);
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reiserfs_set_sd_v2_uid (sd_v2, 0);
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reiserfs_set_sd_v2_gid (sd_v2, 0);
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reiserfs_set_sd_v2_size (sd_v2, REISERFS_DIR_MIN);
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reiserfs_set_sd_v2_atime (sd_v2, time(NULL));
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sd_v2->sd_ctime = sd_v2->sd_mtime = sd_v2->sd_atime; /* all le */
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reiserfs_set_sd_v2_rdev (sd_v2, 0);
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reiserfs_set_sd_v2_blocks (sd_v2, REISERFS_DIR_BLOCKS (REISERFS_DIR_MIN));
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}else{
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reiserfs_sd_v1_t *sd_v1 = (reiserfs_sd_v1_t *)sd;
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reiserfs_ih_set_len (ih, REISERFS_SD_SIZE_V1);
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reiserfs_set_sd_v1_mode(sd_v1, S_IFDIR + 0755);
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reiserfs_set_sd_v1_nlink(sd_v1, 2);
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reiserfs_set_sd_v1_uid (sd_v1, 0);
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reiserfs_set_sd_v1_gid (sd_v1, 0);
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reiserfs_set_sd_v1_size(sd_v1, REISERFS_DIR_MIN_V1);
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reiserfs_set_sd_v1_atime(sd_v1, time(NULL));
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sd_v1->sd_ctime = sd_v1->sd_mtime = sd_v1->sd_atime; /* all le */
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reiserfs_set_sd_v1_blocks(sd_v1, REISERFS_DIR_BLOCKS(REISERFS_DIR_MIN_V1));
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reiserfs_set_sd_v1_fdb(sd_v1, REISERFS_SD_NODIRECT);
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}
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}
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char timebuf[256];
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static char * timestamp (time_t t)
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{
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strftime (timebuf, 256, "%d/%Y %T", localtime (&t));
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return timebuf;
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}
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int reiserfs_print_stat_data (FILE * fp, reiserfs_bh_t * bh,
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reiserfs_ih_t * ih, int alltimes)
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{
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int retval;
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/* we cannot figure out if it is new stat data or old by key_format
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macro. Stat data's key looks identical in both formats */
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if (reiserfs_ih_get_format (ih) == KEY_FORMAT_1) {
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reiserfs_sd_v1_t * sd_v1 =
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(reiserfs_sd_v1_t *)reiserfs_item_by_ih (bh, ih);
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reiserfs_warning (fp, "(OLD SD), mode %M, size %u, nlink %u, uid %u, "
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"FDB %u, mtime %s blocks %u",
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reiserfs_sd_v1_mode(sd_v1),
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reiserfs_sd_v1_size(sd_v1),
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reiserfs_sd_v1_nlink(sd_v1),
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reiserfs_sd_v1_uid(sd_v1),
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reiserfs_sd_v1_fdb(sd_v1),
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timestamp(reiserfs_sd_v1_mtime(sd_v1)),
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reiserfs_sd_v1_blocks(sd_v1));
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retval = (S_ISLNK (reiserfs_sd_v1_mode(sd_v1))) ? 1 : 0;
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if (alltimes)
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reiserfs_warning (fp, "%s %s\n",
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timestamp (reiserfs_sd_v1_ctime(sd_v1)),
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timestamp (reiserfs_sd_v1_atime(sd_v1)));
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} else {
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reiserfs_sd_t * sd = (reiserfs_sd_t *)reiserfs_item_by_ih (bh, ih);
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reiserfs_warning (fp, "(NEW SD), mode %M, size %Lu, nlink %u, mtime "
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"%s blocks %u, uid %u", reiserfs_sd_v2_mode(sd),
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reiserfs_sd_v2_size(sd), reiserfs_sd_v2_nlink(sd),
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timestamp (reiserfs_sd_v2_mtime(sd)),
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reiserfs_sd_v2_blocks(sd), reiserfs_sd_v2_uid(sd));
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retval = (S_ISLNK (reiserfs_sd_v2_mode(sd))) ? 1 : 0;
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if (alltimes)
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reiserfs_warning (fp, "%s %s\n",
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timestamp (reiserfs_sd_v2_ctime(sd)),
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timestamp (reiserfs_sd_v2_atime(sd)));
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}
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reiserfs_warning (fp, "\n");
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return retval;
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}
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