diff options
Diffstat (limited to 'util-linux/e2p/ls.c')
| -rw-r--r-- | util-linux/e2p/ls.c | 276 |
1 files changed, 276 insertions, 0 deletions
diff --git a/util-linux/e2p/ls.c b/util-linux/e2p/ls.c new file mode 100644 index 000000000..e8d9d482d --- /dev/null +++ b/util-linux/e2p/ls.c @@ -0,0 +1,276 @@ +/* + * 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); +} + |