diff options
| -rw-r--r-- | toys/pending/blkid.c | 240 |
1 files changed, 240 insertions, 0 deletions
diff --git a/toys/pending/blkid.c b/toys/pending/blkid.c new file mode 100644 index 00000000..b413047b --- /dev/null +++ b/toys/pending/blkid.c @@ -0,0 +1,240 @@ +/* blkid.c - Prints type, label and UUID of filesystem(s). + * + * Copyright 2013 Brad Conroy <bconroy@uis.edu> + * + * See ftp://ftp.kernel.org/pub/linux/utils/util-linux/v2.24/libblkid-docs/api-index-full.html + +USE_BLKID(NEWTOY(blkid, NULL, TOYFLAG_BIN)) + +config BLKID + bool "blkid" + default n + help + usage: blkid [block device...] + Prints type, label and UUID of filesystem. + +*/ +#define FOR_blkid +#include "toys.h" + +#define BIT(x) (1<<(x)) +#define _MATCH(buf,type,offset,match) (((unsigned type *)&buf[offset])[0]==(match)) +#define MATCH2(b,a) (_MATCH(b,a##_TYPE,a##_OFFSET,a##_MAGIC2)||MATCH(b,a)) +#define MATCH3(b,a) (_MATCH(b,a##_TYPE,a##_OFFSET,a##_MAGIC3)||MATCH2(b,a)) +#define MATCH(b,a) _MATCH(b,a##_TYPE,a##_OFFSET,a##_MAGIC) +/* may need to check endianess for C2I */ +#define C2I(a,b,c,d) (a|(b<<8)|(c<<16)|(d<<24)) + +typedef struct fs_info{ + unsigned uuid_off; + unsigned lab_off; + short uuid_t; + short lab_len; +}fs_info_t; + +//#define SET_FS(t) (fs_info_t){t##_UUID,t##_LABEL,t##_UUID_T,t##_LABEL_SZ} +#define SET_FS(t) (fs_info_t)t##_INFO + +#define ADFS_MAGIC 0xadf5 +#define ADFS_TYPE short +#define ADFS_OFFSET 0xc00 +#define ADFS_INFO {0,0,0,0} /*todo*/ + +#define BFS_MAGIC 0x1badface +#define BFS_TYPE long +#define BFS_OFFSET 0 +#define BFS_INFO {0,0,0,0} + +/*won't fit in 1 toybuf*/ +#define BTRFS_MAGIC C2I('_','B','H','R') //'RHB_' +//#define BTRFS_MAGIC2 'M_Sf' /*not currently used*/ +//#define BTRFS_OFFSET2 65604 /*not currently used*/ +#define BTRFS_TYPE long /*change to long long if full magic used?*/ +#define BTRFS_OFFSET 65600 +#define BTRFS_INFO {65803,65819,16,256} + +#define CRAMFS_MAGIC 0x28cd3d45 +#define CRAMFS_MAGIC2 0x453dcd28 +#define CRAMFS_TYPE long +#define CRAMFS_OFFSET 0 +#define CRAMFS_INFO {0,48,0,16} + +#define EXT_MAGIC 0xEF53 +#define EXT_MAGIC2 0xEF51 +#define EXT_MAGIC3 0x53EF +#define EXT_TYPE short +#define EXT_OFFSET 1080 +#define EXT3_BYTE 1116 +#define EXT4_BYTE 1120 +#define EXT_INFO {1128,1144,16,16} + +#define F2FS_MAGIC 0xF2F52010 +#define F2FS_TYPE long +#define F2FS_OFFSET 1024 +#define F2FS_INFO {1132,1110,16,16} + +/*won't fit in 1 toybuf*/ +#define JFS_MAGIC C2I('J','S','F','1') //'1SFJ' +#define JFS_TYPE long +#define JFS_OFFSET 32768 +#define JFS_INFO {32920,32904,16,16} + +#define NILFS_MAGIC 0x3434 +#define NILFS_TYPE short +#define NILFS_OFFSET 1030 +#define NILFS_INFO {1176,1192,16,80} + +#define NTFS_MAGIC C2I('N','T','F','S') //'SFTN' +#define NTFS_TYPE long +#define NTFS_OFFSET 3 +#define NTFS_INFO {0x48,0X4D80,8,-8} + +/*won't fit in 1 toybuf*/ +#define REISER_MAGIC C2I('R','e','I','s') //'sIeR' +#define REISER_TYPE long +#define REISER_OFFSET 8244 +#define REISER_INFO {8276,8292,16,16} + +#define REISERB_MAGIC REISER_MAGIC //'sIeR' +#define REISERB_TYPE REISER_TYPE +#define REISERB_OFFSET 65588 +#define REISERB_INFO {65620,65636,16,16} + +#define ROMFS_MAGIC C2I('r','o','m','-') //'-mor' +#define ROMFS_OFFSET 0 +#define ROMFS_TYPE long +#define ROMFS_INFO {0,0,0,0} + +#define SQUASHFS_OFFSET 0 +#define SQUASHFS_TYPE long +#define SQUASHFS_MAGIC 0x73717368 +#define SQUASHFS_INFO {0,0,0,0} + +#define XIAFS_OFFSET 572 +#define XIAFS_TYPE long +#define XIAFS_MAGIC 0x012FD16D +#define XIAFS_INFO {0,0,0,0} + +#define XFS_OFFSET 0 +#define XFS_TYPE long +#define XFS_MAGIC C2I('X','F','S','B') +#define XFS_INFO {32,108,16,12} + +#if (CFG_BLKID) +char *toutf8(unsigned short * ws){ /* hack for NTFS utf16 */ + static char buf[16]; + int i=0; + while((buf[i++]=*ws++)); + return buf; +} +#endif + +/* TODO if no args use proc/partitions */ +void do_blkid(int fd, char *name){ + fs_info_t fs; + char *fstype; + unsigned char buf[66560]; /*toybuf is only 4096, could rework logic*/ + int sb_read; + + sb_read = read(fd, &buf, sizeof(buf)); + if (sb_read < 1) return; + + if MATCH(buf,ADFS){ + fstype="adfs"; + if (CFG_BLKID) fs=SET_FS(ADFS); + }else if MATCH(buf,BFS){ + fstype="bfs"; + if (CFG_BLKID) fs=SET_FS(BFS); + }else if MATCH(buf,CRAMFS){ + fstype="cramfs"; + if (CFG_BLKID) fs=SET_FS(CRAMFS); + }else if MATCH3(buf,EXT){ + fstype=(buf[EXT3_BYTE]&BIT(2))?((buf[EXT4_BYTE]&BIT(6))?"ext4":"ext3"):"ext2"; + if (CFG_BLKID) fs=SET_FS(EXT); + }else if MATCH(buf,F2FS){ + fstype="f2fs"; + if (CFG_BLKID) fs=SET_FS(F2FS); + }else if MATCH(buf,NILFS){ + fstype="nilfs"; + if (CFG_BLKID) fs=SET_FS(NILFS); + }else if MATCH(buf,NTFS){ + fstype="ntfs"; + if (CFG_BLKID) fs=SET_FS(NTFS); + }else if MATCH(buf,XIAFS){ + fstype="xiafs"; + if (CFG_BLKID) fs=SET_FS(XIAFS); +/*below here would require more than 1 toybuf*/ + }else if MATCH(buf,REISER){ + fstype="reiserfs"; + if (CFG_BLKID) fs=SET_FS(REISER); + }else if MATCH(buf,JFS){ + fstype="jfs"; + if (CFG_BLKID) fs=SET_FS(JFS); + }else if MATCH(buf,BTRFS){ + fstype="btrfs"; + if (CFG_BLKID) fs=SET_FS(BTRFS); + }else if MATCH(buf,REISERB){ + fstype="reiserfs"; + if (CFG_BLKID) fs=SET_FS(REISERB); + }else return; + +if (CFG_BLKID && !strncmp("blkid",toys.which->name,5) ){ + printf("%s:",name); + if ( fs.lab_len > 0 ) + printf(" LABEL=\"%.*s\"", fs.lab_len, (char *)&buf[fs.lab_off]); + else if ( fs.lab_len < 0 ) + printf(" LABEL=\"%.*s\"", -fs.lab_len, + toutf8((unsigned short *)&buf[fs.lab_off])); + if ( fs.uuid_off > 0 ){ + if ( fs.uuid_t == 16 ) + printf(" UUID=\"%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-" + "%02x%02x%02x%02x%02x%02x\"", + buf[fs.uuid_off], buf[fs.uuid_off+1], + buf[fs.uuid_off+2], buf[fs.uuid_off+3], + buf[fs.uuid_off+4], buf[fs.uuid_off+5], + buf[fs.uuid_off+6], buf[fs.uuid_off+7], + buf[fs.uuid_off+8], buf[fs.uuid_off+9], + buf[fs.uuid_off+10], buf[fs.uuid_off+11], + buf[fs.uuid_off+12], buf[fs.uuid_off+13], + buf[fs.uuid_off+14], buf[fs.uuid_off+15]); + if ( fs.uuid_t == 8 ) + printf(" UUID=\"%02X%02X%02X%02X%02X%02X%02X%02X\"", + buf[fs.uuid_off+7], buf[fs.uuid_off+6], + buf[fs.uuid_off+5], buf[fs.uuid_off+4], + buf[fs.uuid_off+3], buf[fs.uuid_off+2], + buf[fs.uuid_off+1], buf[fs.uuid_off]); + } + printf(" TYPE=\"%s\"",fstype); +}else /* fstype */ + write(1,fstype,strlen(fstype)); /* avoid printf overhead in fstype */ + putchar('\n'); +} + +#if (CFG_BLKID) +void blkid_main(void) +{ + loopfiles(toys.optargs, do_blkid); +} +#endif + + +/* fstype.c - Prints type of filesystem(s). + * + * Copyright 2013 Brad Conroy <bconroy@uis.edu> + +USE_FSTYPE(NEWTOY(fstype, NULL, TOYFLAG_BIN)) + +config FSTYPE + bool "fstype" + default n + help + usage: fstype [block device...] + Prints type of filesystem. +*/ +#define FOR_fstype +#include "toys.h" +void do_blkid(int fd, char *name); +void fstype_main(void) +{ + loopfiles(toys.optargs, do_blkid); +} |