util-linux/e2p/ls.c - codeaurora/busybox - Gitiles

 /*
  * ls.c			- List the contents of an ext2fs superblock
  *
  * Copyright (C) 1992, 1993, 1994  Remy Card <card@masi.ibp.fr>
  *                                 Laboratoire MASI, Institut Blaise Pascal
  *                                 Universite Pierre et Marie Curie (Paris VI)
  *
  * Copyright (C) 1995, 1996, 1997  Theodore Ts'o <tytso@mit.edu>
  *
  * This file can be redistributed under the terms of the GNU Library General
  * Public License
  */

 #include <stdio.h>
 #include <sys/types.h>
 #include <string.h>
 #include <grp.h>
 #include <pwd.h>
 #include <time.h>

 #include "e2p.h"

 static void print_user (unsigned short uid, FILE *f)
 {
 	struct passwd *pw;

 	fprintf(f, "%u ", uid);
 	pw = getpwuid (uid);
 	if (pw == NULL)
 		fprintf(f, "(user unknown)\n");
 	else
 		fprintf(f, "(user %s)\n", pw->pw_name);
 }

 static void print_group (unsigned short gid, FILE *f)
 {
 	struct group *gr;

 	fprintf(f, "%u ", gid);
 	gr = getgrgid (gid);
 	if (gr == NULL)
 		fprintf(f, "(group unknown)\n");
 	else
 		fprintf(f, "(group %s)\n", gr->gr_name);
 }

 #define MONTH_INT (86400 * 30)
 #define WEEK_INT (86400 * 7)
 #define DAY_INT	(86400)
 #define HOUR_INT (60 * 60)
 #define MINUTE_INT (60)

 static const char *interval_string(unsigned int secs)
 {
 	static char buf[256], tmp[80];
 	int		hr, min, num;

 	buf[0] = 0;

 	if (secs == 0)
 		return "<none>";

 	if (secs >= MONTH_INT) {
 		num = secs / MONTH_INT;
 		secs -= num*MONTH_INT;
 		sprintf(buf, "%d month%s", num, (num>1) ? "s" : "");
 	}
 	if (secs >= WEEK_INT) {
 		num = secs / WEEK_INT;
 		secs -= num*WEEK_INT;
 		sprintf(tmp, "%s%d week%s", buf[0] ? ", " : "",
 			num, (num>1) ? "s" : "");
 		strcat(buf, tmp);
 	}
 	if (secs >= DAY_INT) {
 		num = secs / DAY_INT;
 		secs -= num*DAY_INT;
 		sprintf(tmp, "%s%d day%s", buf[0] ? ", " : "",
 			num, (num>1) ? "s" : "");
 		strcat(buf, tmp);
 	}
 	if (secs > 0) {
 		hr = secs / HOUR_INT;
 		secs -= hr*HOUR_INT;
 		min = secs / MINUTE_INT;
 		secs -= min*MINUTE_INT;
 		sprintf(tmp, "%s%d:%02d:%02d", buf[0] ? ", " : "",
 			hr, min, secs);
 		strcat(buf, tmp);
 	}
 	return buf;
 }

 static void print_features(struct ext2_super_block * s, FILE *f)
 {
 #ifdef EXT2_DYNAMIC_REV
 	int	i, j, printed=0;
 	__u32	*mask = &s->s_feature_compat, m;

 	fprintf(f, "Filesystem features:     ");
 	for (i=0; i <3; i++,mask++) {
 		for (j=0,m=1; j < 32; j++, m<<=1) {
 			if (*mask & m) {
 				fprintf(f, " %s", e2p_feature2string(i, m));
 				printed++;
 			}
 		}
 	}
 	if (printed == 0)
 		fprintf(f, " (none)");
 	fprintf(f, "\n");
 #endif
 }

 static void print_mntopts(struct ext2_super_block * s, FILE *f)
 {
 #ifdef EXT2_DYNAMIC_REV
 	int	i, printed=0;
 	__u32	mask = s->s_default_mount_opts, m;

 	fprintf(f, "Default mount options:   ");
 	if (mask & EXT3_DEFM_JMODE) {
 		fprintf(f, " %s", e2p_mntopt2string(mask & EXT3_DEFM_JMODE));
 		printed++;
 	}
 	for (i=0,m=1; i < 32; i++, m<<=1) {
 		if (m & EXT3_DEFM_JMODE)
 			continue;
 		if (mask & m) {
 			fprintf(f, " %s", e2p_mntopt2string(m));
 			printed++;
 		}
 	}
 	if (printed == 0)
 		fprintf(f, " (none)");
 	fprintf(f, "\n");
 #endif
 }


 #ifndef EXT2_INODE_SIZE
 #define EXT2_INODE_SIZE(s) sizeof(struct ext2_inode)
 #endif

 #ifndef EXT2_GOOD_OLD_REV
 #define EXT2_GOOD_OLD_REV 0
 #endif

 void list_super2(struct ext2_super_block * sb, FILE *f)
 {
 	int inode_blocks_per_group;
 	char buf[80], *str;
 	time_t	tm;

 	inode_blocks_per_group = (((sb->s_inodes_per_group *
 				    EXT2_INODE_SIZE(sb)) +
 				   EXT2_BLOCK_SIZE(sb) - 1) /
 				  EXT2_BLOCK_SIZE(sb));
 	if (sb->s_volume_name[0]) {
 		memset(buf, 0, sizeof(buf));
 		strncpy(buf, sb->s_volume_name, sizeof(sb->s_volume_name));
 	} else
 		strcpy(buf, "<none>");
 	fprintf(f, "Filesystem volume name:   %s\n", buf);
 	if (sb->s_last_mounted[0]) {
 		memset(buf, 0, sizeof(buf));
 		strncpy(buf, sb->s_last_mounted, sizeof(sb->s_last_mounted));
 	} else
 		strcpy(buf, "<not available>");
 	fprintf(f, "Last mounted on:          %s\n", buf);
 	fprintf(f, "Filesystem UUID:          %s\n", e2p_uuid2str(sb->s_uuid));
 	fprintf(f, "Filesystem magic number:  0x%04X\n", sb->s_magic);
 	fprintf(f, "Filesystem revision #:    %d", sb->s_rev_level);
 	if (sb->s_rev_level == EXT2_GOOD_OLD_REV) {
 		fprintf(f, " (original)\n");
 #ifdef EXT2_DYNAMIC_REV
 	} else if (sb->s_rev_level == EXT2_DYNAMIC_REV) {
 		fprintf(f, " (dynamic)\n");
 #endif
 	} else
 		fprintf(f, " (unknown)\n");
 	print_features(sb, f);
 	print_mntopts(sb, f);
 	fprintf(f, "Filesystem state:        ");
 	print_fs_state (f, sb->s_state);
 	fprintf(f, "\n");
 	fprintf(f, "Errors behavior:          ");
 	print_fs_errors(f, sb->s_errors);
 	fprintf(f, "\n");
 	str = e2p_os2string(sb->s_creator_os);
 	fprintf(f, "Filesystem OS type:       %s\n", str);
 	free(str);
 	fprintf(f, "Inode count:              %u\n", sb->s_inodes_count);
 	fprintf(f, "Block count:              %u\n", sb->s_blocks_count);
 	fprintf(f, "Reserved block count:     %u\n", sb->s_r_blocks_count);
 	fprintf(f, "Free blocks:              %u\n", sb->s_free_blocks_count);
 	fprintf(f, "Free inodes:              %u\n", sb->s_free_inodes_count);
 	fprintf(f, "First block:              %u\n", sb->s_first_data_block);
 	fprintf(f, "Block size:               %u\n", EXT2_BLOCK_SIZE(sb));
 	fprintf(f, "Fragment size:            %u\n", EXT2_FRAG_SIZE(sb));
 	if (sb->s_reserved_gdt_blocks)
 		fprintf(f, "Reserved GDT blocks:      %u\n",
 			sb->s_reserved_gdt_blocks);
 	fprintf(f, "Blocks per group:         %u\n", sb->s_blocks_per_group);
 	fprintf(f, "Fragments per group:      %u\n", sb->s_frags_per_group);
 	fprintf(f, "Inodes per group:         %u\n", sb->s_inodes_per_group);
 	fprintf(f, "Inode blocks per group:   %u\n", inode_blocks_per_group);
 	if (sb->s_first_meta_bg)
 		fprintf(f, "First meta block group:   %u\n",
 			sb->s_first_meta_bg);
 	if (sb->s_mkfs_time) {
 		tm = sb->s_mkfs_time;
 		fprintf(f, "Filesystem created:       %s", ctime(&tm));
 	}
 	tm = sb->s_mtime;
 	fprintf(f, "Last mount time:          %s",
 		sb->s_mtime ? ctime(&tm) : "n/a\n");
 	tm = sb->s_wtime;
 	fprintf(f, "Last write time:          %s", ctime(&tm));
 	fprintf(f, "Mount count:              %u\n", sb->s_mnt_count);
 	fprintf(f, "Maximum mount count:      %d\n", sb->s_max_mnt_count);
 	tm = sb->s_lastcheck;
 	fprintf(f, "Last checked:             %s", ctime(&tm));
 	fprintf(f, "Check interval:           %u (%s)\n", sb->s_checkinterval,
 	       interval_string(sb->s_checkinterval));
 	if (sb->s_checkinterval)
 	{
 		time_t next;

 		next = sb->s_lastcheck + sb->s_checkinterval;
 		fprintf(f, "Next check after:         %s", ctime(&next));
 	}
 	fprintf(f, "Reserved blocks uid:      ");
 	print_user(sb->s_def_resuid, f);
 	fprintf(f, "Reserved blocks gid:      ");
 	print_group(sb->s_def_resgid, f);
 	if (sb->s_rev_level >= EXT2_DYNAMIC_REV) {
 		fprintf(f, "First inode:              %d\n", sb->s_first_ino);
 		fprintf(f, "Inode size:		  %d\n", sb->s_inode_size);
 	}
 	if (!e2p_is_null_uuid(sb->s_journal_uuid))
 		fprintf(f, "Journal UUID:             %s\n",
 			e2p_uuid2str(sb->s_journal_uuid));
 	if (sb->s_journal_inum)
 		fprintf(f, "Journal inode:            %u\n",
 			sb->s_journal_inum);
 	if (sb->s_journal_dev)
 		fprintf(f, "Journal device:	          0x%04x\n",
 			sb->s_journal_dev);
 	if (sb->s_last_orphan)
 		fprintf(f, "First orphan inode:       %u\n",
 			sb->s_last_orphan);
 	if ((sb->s_feature_compat & EXT2_FEATURE_COMPAT_DIR_INDEX) ||
 	    sb->s_def_hash_version)
 		fprintf(f, "Default directory hash:   %s\n",
 			e2p_hash2string(sb->s_def_hash_version));
 	if (!e2p_is_null_uuid(sb->s_hash_seed))
 		fprintf(f, "Directory Hash Seed:      %s\n",
 			e2p_uuid2str(sb->s_hash_seed));
 	if (sb->s_jnl_backup_type) {
 		fprintf(f, "Journal backup:           ");
 		switch (sb->s_jnl_backup_type) {
 		case 1:
 			fprintf(f, "inode blocks\n");
 			break;
 		default:
 			fprintf(f, "type %u\n", sb->s_jnl_backup_type);
 		}
 	}
 }

 void list_super (struct ext2_super_block * s)
 {
 	list_super2(s, stdout);
 }
	/*
	* ls.c - List the contents of an ext2fs superblock
	*
	* Copyright (C) 1992, 1993, 1994 Remy Card <card@masi.ibp.fr>
	* Laboratoire MASI, Institut Blaise Pascal
	* Universite Pierre et Marie Curie (Paris VI)
	*
	* Copyright (C) 1995, 1996, 1997 Theodore Ts'o <tytso@mit.edu>
	*
	* This file can be redistributed under the terms of the GNU Library General
	* Public License
	*/

	#include <stdio.h>
	#include <sys/types.h>
	#include <string.h>
	#include <grp.h>
	#include <pwd.h>
	#include <time.h>

	#include "e2p.h"

	static void print_user (unsigned short uid, FILE *f)
	{
	struct passwd *pw;

	fprintf(f, "%u ", uid);
	pw = getpwuid (uid);
	if (pw == NULL)
	fprintf(f, "(user unknown)\n");
	else
	fprintf(f, "(user %s)\n", pw->pw_name);
	}

	static void print_group (unsigned short gid, FILE *f)
	{
	struct group *gr;

	fprintf(f, "%u ", gid);
	gr = getgrgid (gid);
	if (gr == NULL)
	fprintf(f, "(group unknown)\n");
	else
	fprintf(f, "(group %s)\n", gr->gr_name);
	}

	#define MONTH_INT (86400 * 30)
	#define WEEK_INT (86400 * 7)
	#define DAY_INT (86400)
	#define HOUR_INT (60 * 60)
	#define MINUTE_INT (60)

	static const char *interval_string(unsigned int secs)
	{
	static char buf[256], tmp[80];
	int hr, min, num;

	buf[0] = 0;

	if (secs == 0)
	return "<none>";

	if (secs >= MONTH_INT) {
	num = secs / MONTH_INT;
	secs -= num*MONTH_INT;
	sprintf(buf, "%d month%s", num, (num>1) ? "s" : "");
	}
	if (secs >= WEEK_INT) {
	num = secs / WEEK_INT;
	secs -= num*WEEK_INT;
	sprintf(tmp, "%s%d week%s", buf[0] ? ", " : "",
	num, (num>1) ? "s" : "");
	strcat(buf, tmp);
	}
	if (secs >= DAY_INT) {
	num = secs / DAY_INT;
	secs -= num*DAY_INT;
	sprintf(tmp, "%s%d day%s", buf[0] ? ", " : "",
	num, (num>1) ? "s" : "");
	strcat(buf, tmp);
	}
	if (secs > 0) {
	hr = secs / HOUR_INT;
	secs -= hr*HOUR_INT;
	min = secs / MINUTE_INT;
	secs -= min*MINUTE_INT;
	sprintf(tmp, "%s%d:%02d:%02d", buf[0] ? ", " : "",
	hr, min, secs);
	strcat(buf, tmp);
	}
	return buf;
	}

	static void print_features(struct ext2_super_block * s, FILE *f)
	{
	#ifdef EXT2_DYNAMIC_REV
	int i, j, printed=0;
	__u32 *mask = &s->s_feature_compat, m;

	fprintf(f, "Filesystem features: ");
	for (i=0; i <3; i++,mask++) {
	for (j=0,m=1; j < 32; j++, m<<=1) {
	if (*mask & m) {
	fprintf(f, " %s", e2p_feature2string(i, m));
	printed++;
	}
	}
	}
	if (printed == 0)
	fprintf(f, " (none)");
	fprintf(f, "\n");
	#endif
	}

	static void print_mntopts(struct ext2_super_block * s, FILE *f)
	{
	#ifdef EXT2_DYNAMIC_REV
	int i, printed=0;
	__u32 mask = s->s_default_mount_opts, m;

	fprintf(f, "Default mount options: ");
	if (mask & EXT3_DEFM_JMODE) {
	fprintf(f, " %s", e2p_mntopt2string(mask & EXT3_DEFM_JMODE));
	printed++;
	}
	for (i=0,m=1; i < 32; i++, m<<=1) {
	if (m & EXT3_DEFM_JMODE)
	continue;
	if (mask & m) {
	fprintf(f, " %s", e2p_mntopt2string(m));
	printed++;
	}
	}
	if (printed == 0)
	fprintf(f, " (none)");
	fprintf(f, "\n");
	#endif
	}


	#ifndef EXT2_INODE_SIZE
	#define EXT2_INODE_SIZE(s) sizeof(struct ext2_inode)
	#endif

	#ifndef EXT2_GOOD_OLD_REV
	#define EXT2_GOOD_OLD_REV 0
	#endif

	void list_super2(struct ext2_super_block * sb, FILE *f)
	{
	int inode_blocks_per_group;
	char buf[80], *str;
	time_t tm;

	inode_blocks_per_group = (((sb->s_inodes_per_group *
	EXT2_INODE_SIZE(sb)) +
	EXT2_BLOCK_SIZE(sb) - 1) /
	EXT2_BLOCK_SIZE(sb));
	if (sb->s_volume_name[0]) {
	memset(buf, 0, sizeof(buf));
	strncpy(buf, sb->s_volume_name, sizeof(sb->s_volume_name));
	} else
	strcpy(buf, "<none>");
	fprintf(f, "Filesystem volume name: %s\n", buf);
	if (sb->s_last_mounted[0]) {
	memset(buf, 0, sizeof(buf));
	strncpy(buf, sb->s_last_mounted, sizeof(sb->s_last_mounted));
	} else
	strcpy(buf, "<not available>");
	fprintf(f, "Last mounted on: %s\n", buf);
	fprintf(f, "Filesystem UUID: %s\n", e2p_uuid2str(sb->s_uuid));
	fprintf(f, "Filesystem magic number: 0x%04X\n", sb->s_magic);
	fprintf(f, "Filesystem revision #: %d", sb->s_rev_level);
	if (sb->s_rev_level == EXT2_GOOD_OLD_REV) {
	fprintf(f, " (original)\n");
	#ifdef EXT2_DYNAMIC_REV
	} else if (sb->s_rev_level == EXT2_DYNAMIC_REV) {
	fprintf(f, " (dynamic)\n");
	#endif
	} else
	fprintf(f, " (unknown)\n");
	print_features(sb, f);
	print_mntopts(sb, f);
	fprintf(f, "Filesystem state: ");
	print_fs_state (f, sb->s_state);
	fprintf(f, "\n");
	fprintf(f, "Errors behavior: ");
	print_fs_errors(f, sb->s_errors);
	fprintf(f, "\n");
	str = e2p_os2string(sb->s_creator_os);
	fprintf(f, "Filesystem OS type: %s\n", str);
	free(str);
	fprintf(f, "Inode count: %u\n", sb->s_inodes_count);
	fprintf(f, "Block count: %u\n", sb->s_blocks_count);
	fprintf(f, "Reserved block count: %u\n", sb->s_r_blocks_count);
	fprintf(f, "Free blocks: %u\n", sb->s_free_blocks_count);
	fprintf(f, "Free inodes: %u\n", sb->s_free_inodes_count);
	fprintf(f, "First block: %u\n", sb->s_first_data_block);
	fprintf(f, "Block size: %u\n", EXT2_BLOCK_SIZE(sb));
	fprintf(f, "Fragment size: %u\n", EXT2_FRAG_SIZE(sb));
	if (sb->s_reserved_gdt_blocks)
	fprintf(f, "Reserved GDT blocks: %u\n",
	sb->s_reserved_gdt_blocks);
	fprintf(f, "Blocks per group: %u\n", sb->s_blocks_per_group);
	fprintf(f, "Fragments per group: %u\n", sb->s_frags_per_group);
	fprintf(f, "Inodes per group: %u\n", sb->s_inodes_per_group);
	fprintf(f, "Inode blocks per group: %u\n", inode_blocks_per_group);
	if (sb->s_first_meta_bg)
	fprintf(f, "First meta block group: %u\n",
	sb->s_first_meta_bg);
	if (sb->s_mkfs_time) {
	tm = sb->s_mkfs_time;
	fprintf(f, "Filesystem created: %s", ctime(&tm));
	}
	tm = sb->s_mtime;
	fprintf(f, "Last mount time: %s",
	sb->s_mtime ? ctime(&tm) : "n/a\n");
	tm = sb->s_wtime;
	fprintf(f, "Last write time: %s", ctime(&tm));
	fprintf(f, "Mount count: %u\n", sb->s_mnt_count);
	fprintf(f, "Maximum mount count: %d\n", sb->s_max_mnt_count);
	tm = sb->s_lastcheck;
	fprintf(f, "Last checked: %s", ctime(&tm));
	fprintf(f, "Check interval: %u (%s)\n", sb->s_checkinterval,
	interval_string(sb->s_checkinterval));
	if (sb->s_checkinterval)
	{
	time_t next;

	next = sb->s_lastcheck + sb->s_checkinterval;
	fprintf(f, "Next check after: %s", ctime(&next));
	}
	fprintf(f, "Reserved blocks uid: ");
	print_user(sb->s_def_resuid, f);
	fprintf(f, "Reserved blocks gid: ");
	print_group(sb->s_def_resgid, f);
	if (sb->s_rev_level >= EXT2_DYNAMIC_REV) {
	fprintf(f, "First inode: %d\n", sb->s_first_ino);
	fprintf(f, "Inode size: %d\n", sb->s_inode_size);
	}
	if (!e2p_is_null_uuid(sb->s_journal_uuid))
	fprintf(f, "Journal UUID: %s\n",
	e2p_uuid2str(sb->s_journal_uuid));
	if (sb->s_journal_inum)
	fprintf(f, "Journal inode: %u\n",
	sb->s_journal_inum);
	if (sb->s_journal_dev)
	fprintf(f, "Journal device: 0x%04x\n",
	sb->s_journal_dev);
	if (sb->s_last_orphan)
	fprintf(f, "First orphan inode: %u\n",
	sb->s_last_orphan);
	if ((sb->s_feature_compat & EXT2_FEATURE_COMPAT_DIR_INDEX) \|\|
	sb->s_def_hash_version)
	fprintf(f, "Default directory hash: %s\n",
	e2p_hash2string(sb->s_def_hash_version));
	if (!e2p_is_null_uuid(sb->s_hash_seed))
	fprintf(f, "Directory Hash Seed: %s\n",
	e2p_uuid2str(sb->s_hash_seed));
	if (sb->s_jnl_backup_type) {
	fprintf(f, "Journal backup: ");
	switch (sb->s_jnl_backup_type) {
	case 1:
	fprintf(f, "inode blocks\n");
	break;
	default:
	fprintf(f, "type %u\n", sb->s_jnl_backup_type);
	}
	}
	}

	void list_super (struct ext2_super_block * s)
	{
	list_super2(s, stdout);
	}