/* stat.c : display file or file system status * anand.sinha85@gmail.com * Copyright 2012 USE_STAT(NEWTOY(stat, "c:f", TOYFLAG_BIN)) config STAT bool stat default n 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 File system type */ #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; char *ftname, access_str[11]; ) // 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.%09d", toybuf, ts->tv_nsec); } static int print_stat(char type) { struct stat *stat = (struct stat *)&TT.stat; switch (type) { case 'a': xprintf("%04lo", stat->st_mode & ~S_IFMT); break; case 'A': xprintf("%s", TT.access_str); break; case 'b': xprintf("%llu", stat->st_blocks); break; case 'B': xprintf("%lu", stat->st_blksize); break; case 'd': xprintf("%ldd", stat->st_dev); break; case 'D': xprintf("%llxh", stat->st_dev); break; case 'f': xprintf("%lx", stat->st_mode); break; case 'F': xprintf("%s", TT.ftname); break; case 'g': xprintf("%lu", stat->st_gid); break; case 'G': xprintf("%8s", TT.user_name->pw_name); break; case 'h': xprintf("%lu", stat->st_nlink); break; case 'i': xprintf("%llu", stat->st_ino); break; case 'N': xprintf("`%s'", *toys.optargs); break; case 'o': xprintf("%lu", stat->st_blksize); break; case 's': xprintf("%llu", stat->st_size); break; case 'u': xprintf("%lu", stat->st_uid); break; case 'U': xprintf("%8s", TT.user_name->pw_name); break; case 'x': date_stat_format((void *)&stat->st_atime); break; case 'X': xprintf("%llu", (long long)stat->st_atime); break; case 'y': date_stat_format((void *)&stat->st_mtime); break; case 'Y': xprintf("%llu", (long long)stat->st_mtime); break; case 'z': date_stat_format((void *)&stat->st_ctime); break; case 'Z': xprintf("%llu", (long long)stat->st_ctime); break; default: return 1; } return 0; } static int print_statfs(char type) { struct statfs *statfs = (struct statfs *)&TT.stat; switch (type) { case 'a': xprintf("%lu", statfs->f_bavail); break; case 'b': xprintf("%lu", statfs->f_blocks); break; case 'c': xprintf("%lu", statfs->f_files); break; case 'd': xprintf("%lu", statfs->f_ffree); break; case 'f': xprintf("%lu", statfs->f_bfree); break; case 'i': xprintf("%x%x", statfs->f_fsid.__val[0], statfs->f_fsid.__val[1]); break; case 'l': xprintf("%ld", statfs->f_namelen); break; case 's': xprintf("%d", statfs->f_frsize); break; case 'S': xprintf("%d", statfs->f_bsize); break; case 't': xprintf("%lx", statfs->f_type); break; default: return 1; } return 0; } static int do_stat(char *path) { struct stat *statf = (struct stat*)&TT.stat; char *types = "character device\0directory\0block device\0" \ "regular file\0symbolic link\0socket\0FIFO (named pipe)"; int i, filetype; if (stat(path, statf) < 0) return 1; filetype = statf->st_mode & S_IFMT; TT.ftname = types; for (i = 1; filetype != (i*8192) && i < 7; i++) TT.ftname += strlen(TT.ftname)+1; if (!statf->st_size && filetype == S_IFREG) TT.ftname = "regular empty file"; // check user and group name TT.user_name = getpwuid(statf->st_uid); TT.group_name = getgrgid(statf->st_gid); // function to get access in human readable format format_mode(&TT.access_str, statf->st_mode); return 0; } static int do_statfs(char *path) { return statfs(path, (void *)&TT.stat) < 0; } void stat_main(void) { struct { char *fmt; int (*do_it)(char*); int (*print_it)(char); } d, ds[2] = { {" File: %N\n" " Size: %s\t Blocks: %b\t IO Blocks: %B\t%F\n" "Device: %D\t Inode: %i\t Links: %h\n" "Access: (%a/%A)\tUid: (%u/%U)\tGid: (%g/%G)\n" "Access: %x\nModify: %y\nChange: %z", do_stat, print_stat}, {" 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", do_statfs, print_statfs} }; d = ds[toys.optflags & FLAG_f]; if (toys.optflags & FLAG_c) d.fmt = TT.fmt; for (; *toys.optargs; toys.optargs++) { char *format = d.fmt; if (d.do_it(*toys.optargs)) { perror_msg("'%s'", *toys.optargs); continue; } for (; *format; format++) { if (*format != '%') { xputc(*format); continue; } format++; if (*format == 'n') xprintf("%s", *toys.optargs); else if (d.print_it(*format)) xputc(*format); } xputc('\n'); } }