/* stat.c : display file or file system status * Copyright 2012 * Copyright 2013 USE_STAT(NEWTOY(stat, "<1c:f", TOYFLAG_BIN)) config STAT bool stat default y help usage: stat [-f] [-c FORMAT] FILE... Display status of files or filesystems. -f display filesystem status instead of file status -c Output specified FORMAT string instead of default The valid format escape sequences for files: %a Access bits (octal) |%A Access bits (flags)|%b Blocks allocated %B Bytes per block |%d Device ID (dec) |%D Device ID (hex) %f All mode bits (hex) |%F File type |%g Group ID %G Group name |%h Hard links |%i Inode %n Filename |%N Long filename |%o I/O block size %s Size (bytes) |%u User ID |%U User name %x Access time |%X Access unix time |%y File write time %Y File write unix time|%z Dir change time |%Z Dir change unix time The valid format escape sequences for filesystems: %a Available blocks |%b Total blocks |%c Total inodes %d Free inodes |%f Free blocks |%i File system ID %l Max filename length |%n File name |%s Fragment size %S Best transfer size |%t Filesystem type |%T Filesystem type name */ #define FOR_stat #include "toys.h" GLOBALS( char *fmt; union { struct stat st; struct statfs sf; } stat; struct passwd *user_name; struct group *group_name; ) // Note: the atime, mtime, and ctime fields in struct stat are the start // of embedded struct timespec, but posix won't let them use that // struct definition for legacy/namespace reasons. static void date_stat_format(struct timespec *ts) { strftime(toybuf, sizeof(toybuf), "%Y-%m-%d %H:%M:%S", localtime(&(ts->tv_sec))); xprintf("%s.%09ld", toybuf, ts->tv_nsec); } // Force numeric output to long long instead of manually typecasting everything static void out(char c, long long val) { sprintf(toybuf, "%%ll%c", c); printf(toybuf, val); } static void print_stat(char type) { struct stat *stat = (struct stat *)&TT.stat; if (type == 'a') out('o', stat->st_mode&~S_IFMT); else if (type == 'A') { char str[11]; mode_to_string(stat->st_mode, str); xprintf("%s", str); } else if (type == 'b') out('u', stat->st_blocks); else if (type == 'B') out('u', stat->st_blksize); else if (type == 'd') out('d', stat->st_dev); else if (type == 'D') out('x', stat->st_dev); else if (type == 'f') out('x', stat->st_mode); else if (type == 'F') { char *t = "character device\0directory\0block device\0" \ "regular file\0symbolic link\0socket\0FIFO (named pipe)"; int i, filetype = stat->st_mode & S_IFMT; for (i = 1; filetype != (i*8192) && i < 7; i++) t += strlen(t)+1; if (!stat->st_size && filetype == S_IFREG) t = "regular empty file"; xprintf("%s", t); } else if (type == 'g') out('u', stat->st_gid); else if (type == 'G') xprintf("%8s", TT.group_name->gr_name); else if (type == 'h') out('u', stat->st_nlink); else if (type == 'i') out('u', stat->st_ino); else if (type == 'N') { xprintf("`%s'", *toys.optargs); if (S_ISLNK(stat->st_mode)) if (0 `%s'", toybuf); } else if (type == 'o') out('u', stat->st_blksize); else if (type == 's') out('u', stat->st_size); else if (type == 'u') out('u', stat->st_uid); else if (type == 'U') xprintf("%8s", TT.user_name->pw_name); else if (type == 'x') date_stat_format((void *)&stat->st_atime); else if (type == 'X') out('u', stat->st_atime); else if (type == 'y') date_stat_format((void *)&stat->st_mtime); else if (type == 'Y') out('u', stat->st_mtime); else if (type == 'z') date_stat_format((void *)&stat->st_ctime); else if (type == 'Z') out('u', stat->st_ctime); else xprintf("?"); } static void print_statfs(char type) { struct statfs *statfs = (struct statfs *)&TT.stat; if (type == 'a') out('u', statfs->f_bavail); else if (type == 'b') out('u', statfs->f_blocks); else if (type == 'c') out('u', statfs->f_files); else if (type == 'd') out('u', statfs->f_ffree); else if (type == 'f') out('u', statfs->f_bfree); else if (type == 'l') out('d', statfs->f_namelen); else if (type == 't') out('x', statfs->f_type); else if (type == 'T') { char *s = "unknown"; struct {unsigned num; char *name;} nn[] = { {0xADFF, "affs"}, {0x5346544e, "ntfs"}, {0x1Cd1, "devpts"}, {0x137D, "ext"}, {0xEF51, "ext2"}, {0xEF53, "ext3"}, {0x1BADFACE, "bfs"}, {0x9123683E, "btrfs"}, {0x28cd3d45, "cramfs"}, {0x3153464a, "jfs"}, {0x7275, "romfs"}, {0x01021994, "tmpfs"}, {0x3434, "nilfs"}, {0x6969, "nfs"}, {0x9fa0, "proc"}, {0x534F434B, "sockfs"}, {0x62656572, "sysfs"}, {0x517B, "smb"}, {0x4d44, "msdos"}, {0x4006, "fat"}, {0x43415d53, "smackfs"}, {0x73717368, "squashfs"} }; int i; for (i=0; if_type) s = nn[i].name; fputs(s, stdout); } else if (type == 'i') xprintf("%08x%08x", statfs->f_fsid.__val[0], statfs->f_fsid.__val[1]); else if (type == 's') out('d', statfs->f_frsize); else if (type == 'S') out('d', statfs->f_bsize); else xprintf("?"); } void stat_main(void) { int flagf = toys.optflags & FLAG_f; char *format = flagf ? " File: \"%n\"\n ID: %i Namelen: %l Type: %t\n" "Block Size: %s Fundamental block size: %S\n" "Blocks: Total: %b\tFree: %f\tAvailable: %a\n" "Inodes: Total: %c\tFree: %d" : " File: %N\n Size: %s\t Blocks: %b\t IO Blocks: %B\t%F\n" "Device: %Dh/%dd\t Inode: %i\t Links: %h\n" "Access: (%a/%A)\tUid: (%u/%U)\tGid: (%g/%G)\n" "Access: %x\nModify: %y\nChange: %z"; if (toys.optflags & FLAG_c) format = TT.fmt; for (; *toys.optargs; toys.optargs++) { char *f; if (flagf && !statfs(*toys.optargs, (void *)&TT.stat)); else if (!flagf && !lstat(*toys.optargs, (void *)&TT.stat)) { struct stat *stat = (struct stat*)&TT.stat; // check user and group name TT.user_name = getpwuid(stat->st_uid); TT.group_name = getgrgid(stat->st_gid); } else { perror_msg("'%s'", *toys.optargs); continue; } for (f = format; *f; f++) { if (*f != '%') putchar(*f); else { if (*++f == 'n') xprintf("%s", *toys.optargs); else if (flagf) print_statfs(*f); else print_stat(*f); } } xputc('\n'); } }