sdext_lw_repair.c

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/* Copyright 2001-2005 by Hans Reiser, licensing governed by
   reiser4progs/COPYING.
   
   sdext_lw_repair.c -- light weight stat data extension plugin recovery 
   code. */

#ifndef ENABLE_MINIMAL
#include <sys/stat.h>
#include "sdext_lw.h"
#include <repair/plugin.h>

#include "sdext_lw.h"

errno_t sdext_lw_check_struct(stat_entity_t *stat, repair_hint_t *hint) {
	aal_assert("vpf-777", stat != NULL);
	aal_assert("vpf-783", stat->plug != NULL);
	
	if (stat->offset + sizeof(sdext_lw_t) > stat->place->len) {
		fsck_mess("Node (%llu), item (%u), [%s]: does not look "
			  "like a valid (%s) statdata extension.", 
			  place_blknr(stat->place), stat->place->pos.item,
			  print_key(sdext_lw_core, &stat->place->key),
			  stat->plug->p.label);
		return 	RE_FATAL;
	}
	
	return 0;
}

/* Mode parse stuff. */
static char sdext_lw_file_type(uint16_t mode) {
	if (S_ISDIR(mode))
		return 'd';
	if (S_ISCHR(mode))
		return 'c';
	if (S_ISBLK(mode))
		return 'b';
	if (S_ISFIFO(mode))
		return 'p';
	if (S_ISLNK(mode))
		return 'l';
	if (S_ISSOCK(mode))
		return 's';
	if (S_ISREG (mode))
		return '-';

	return '?';
}

static void sdext_lw_parse_mode(uint16_t mode, char *str) {
	str[0] = sdext_lw_file_type(mode);
	str[1] = mode & S_IRUSR ? 'r' : '-';
	str[2] = mode & S_IWUSR ? 'w' : '-';
	str[3] = mode & S_IXUSR ? 'x' : '-';
	str[4] = mode & S_IRGRP ? 'r' : '-';
	str[5] = mode & S_IWGRP ? 'w' : '-';
	str[6] = mode & S_IXGRP ? 'x' : '-';
	str[7] = mode & S_IROTH ? 'r' : '-';
	str[8] = mode & S_IWOTH ? 'w' : '-';
	str[9] = mode & S_IXOTH ? 'x' : '-';
	str[10] = '\0';
}

/* Print extension to passed @stream. */
void sdext_lw_print(stat_entity_t *stat, 
		    aal_stream_t *stream, 
		    uint16_t options) 
{
	char mode[16];
	sdext_lw_t *ext;
	
	aal_assert("umka-1410", stat != NULL);
	aal_assert("umka-1411", stream != NULL);

	ext = (sdext_lw_t *)stat_body(stat);
	
	if (sizeof(sdext_lw_t) + stat->offset > stat->place->len) {
		aal_stream_format(stream, "No enough space (%u bytes) "
				  "for the large-time extention body.\n", 
				  stat->place->len - stat->offset);
		return;
	}
	
	aal_memset(mode, 0, sizeof(mode));
	sdext_lw_parse_mode(sdext_lw_get_mode(ext), mode);
	
	aal_stream_format(stream, "mode:\t\t%s\n", mode);
	
	aal_stream_format(stream, "nlink:\t\t%u\n",
			  sdext_lw_get_nlink(ext));
	
	aal_stream_format(stream, "size:\t\t%llu\n",
			  sdext_lw_get_size(ext));
}

#endif