/* 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 file or file system status -f display file system status instead of file status -c use the specified FORMAT instead of the default; output a newline after each use of FORMAT The valid format sequences for files: %a Access rights in octal %A Access rights in human readable form %b Number of blocks allocated %B The size in bytes of each block %d Device number in decimal %D Device number in hex %f Raw mode in hex %F File type %g Group ID of owner %G Group name of owner %h Number of hard links %i Inode number %n File name %N Quoted file name with dereference if symbolic link %o I/O block size %s Total size, in bytes %u User ID of owner %U User name of owner %x Time of last access %X Time of last access as seconds since Epoch %y Time of last modification %Y Time of last modification as seconds since Epoch %z Time of last change %Z Time of last change as seconds since Epoch The valid format sequences for file systems: %a Available blocks for unpriviledges user %b Total number of blocks %c Total number of inodes %d Number of free inodes %f Number of free blocks %i File system ID %l Maximum length of file names %s Fragment size %S Optimal transfer block size %t File system type */ #define FOR_stat #include "toys.h" GLOBALS( char *fmt; char access_str[11]; char *file_type; struct passwd *user_name; struct group *group_name; struct stat *stat; struct statfs *statfs; ) static char * check_type_file(mode_t mode, size_t size) { if (S_ISREG(mode)) { if (size) return "regular file"; return "regular empty file"; } if (S_ISDIR(mode)) return "directory"; if (S_ISCHR(mode)) return "character device"; if (S_ISBLK(mode)) return "block device"; if (S_ISFIFO(mode)) return "FIFO (named pipe)"; if (S_ISLNK(mode)) return "symbolic link"; if (S_ISSOCK(mode)) return "socket"; } static char * date_stat_format(time_t time) { static char buf[36]; strftime(buf, sizeof(buf), "%Y-%m-%d %H:%M:%S.000000000", localtime(&time)); return buf; } static void print_stat_format(char *format, int flag) { for (; *format; format++) { if (*format != '%') { xprintf("%c", *format); continue; } format++; switch (*format) { case 'a': if (flag) xprintf("%lu", TT.statfs->f_bavail); else xprintf("%04lo",TT.stat->st_mode & ~S_IFMT); break; case 'A': xprintf("%s",TT.access_str); break; case 'b': if (flag) xprintf("%lu", TT.statfs->f_blocks); else xprintf("%llu", TT.stat->st_blocks); break; case 'B': xprintf("%lu", TT.stat->st_blksize); break; case 'c': if (flag) xprintf("%lu", TT.statfs->f_files); break; case 'd': if (flag) xprintf("%lu", TT.statfs->f_ffree); else xprintf("%ldd", TT.stat->st_dev); break; case 'D': xprintf("%llxh", TT.stat->st_dev); break; case 'f': if (flag) xprintf("%lu", TT.statfs->f_bfree); else xprintf("%lx", TT.stat->st_mode); break; case 'F': xprintf("%s", TT.file_type); break; case 'g': xprintf("%lu", TT.stat->st_gid); break; case 'G': xprintf("%8s", TT.user_name->pw_name); break; case 'h': xprintf("%lu", TT.stat->st_nlink); break; case 'i': if (flag) xprintf("%d%d", TT.statfs->f_fsid.__val[0], TT.statfs->f_fsid.__val[1]); else xprintf("%llu", TT.stat->st_ino); break; case 'l': if (flag) xprintf("%ld", TT.statfs->f_namelen); break; case 'n': xprintf("%s", *toys.optargs); break; case 'N': xprintf("`%s'", *toys.optargs); break; case 'o': xprintf("%lu", TT.stat->st_blksize); break; case 's': if (flag) xprintf("%d", TT.statfs->f_frsize); else xprintf("%llu", TT.stat->st_size); break; case 'S': if (flag) xprintf("%d", TT.statfs->f_bsize); break; case 't': if (flag) xprintf("%lx", TT.statfs->f_type); break; case 'u': xprintf("%lu", TT.stat->st_uid); break; case 'U': xprintf("%8s", TT.user_name->pw_name); break; case 'x': xprintf("%s", date_stat_format(TT.stat->st_atime)); break; case 'X': xprintf("%llu", TT.stat->st_atime); break; case 'y': xprintf("%s", date_stat_format(TT.stat->st_mtime)); break; case 'Y': xprintf("%llu", TT.stat->st_mtime); break; case 'z': xprintf("%s", date_stat_format(TT.stat->st_ctime)); break; case 'Z': xprintf("%llu", TT.stat->st_ctime); default: xprintf("%c", *format); break; } } xprintf("\n"); } void stat_main(void) { int flag_f = toys.optflags & FLAG_f, flag_c = toys.optflags & FLAG_c; char *fmts[] = { " File: %N\n" " Size: %s\t Blocks: %S\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", " 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", TT.fmt}; if (!flag_f) { TT.stat = xmalloc(sizeof(struct stat)); if (stat(*toys.optargs, TT.stat) < 0) perror_exit("stat: '%s'", *toys.optargs); // function to check the type/mode of file TT.file_type = check_type_file(TT.stat->st_mode, TT.stat->st_size); // check user and group name TT.user_name = getpwuid(TT.stat->st_uid); TT.group_name = getgrgid(TT.stat->st_gid); // function to get access in human readable format format_mode(&TT.access_str, TT.stat->st_mode); } else { TT.statfs = xmalloc(sizeof(struct statfs)); if (statfs(*toys.optargs, TT.statfs) < 0) perror_exit("statfs: '%s'", *toys.optargs); } print_stat_format(fmts[!flag_c*flag_f+flag_c], flag_f); }