diff options
| -rw-r--r-- | coreutils/Config.in | 6 | ||||
| -rw-r--r-- | coreutils/df.c | 93 | ||||
| -rw-r--r-- | include/usage.h | 40 | ||||
| -rw-r--r-- | libbb/human_readable.c | 33 | ||||
| -rw-r--r-- | scripts/defconfig | 2 |
5 files changed, 105 insertions, 69 deletions
diff --git a/coreutils/Config.in b/coreutils/Config.in index 4138390..29b55d4 100644 --- a/coreutils/Config.in +++ b/coreutils/Config.in @@ -136,12 +136,12 @@ config DF df reports the amount of disk space used and available on filesystems. -config FEATURE_DF_INODE - bool "Enable -i (inode information)" +config FEATURE_DF_FANCY + bool "Enable -a, -i, -B" default n depends on DF help - This option enables support for df -i. + This option enables -a, -i and -B. config DIRNAME bool "dirname" diff --git a/coreutils/df.c b/coreutils/df.c index 9cb328a..fd25023 100644 --- a/coreutils/df.c +++ b/coreutils/df.c @@ -8,7 +8,7 @@ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. */ -/* BB_AUDIT SUSv3 _NOT_ compliant -- options -P and -t missing. Also blocksize. */ +/* BB_AUDIT SUSv3 _NOT_ compliant -- option -t missing. */ /* http://www.opengroup.org/onlinepubs/007904975/utilities/df.html */ /* Mar 16, 2003 Manuel Novoa III (mjn3@codepoet.org) @@ -16,6 +16,10 @@ * Size reduction. Removed floating point dependency. Added error checking * on output. Output stats on 0-sized filesystems if specifically listed on * the command line. Properly round *-blocks, Used, and Available quantities. + * + * Aug 28, 2008 Bernhard Reutner-Fischer + * + * Implement -P and -B; better coreutils compat; cleanup */ #include <mntent.h> @@ -34,51 +38,73 @@ int df_main(int argc, char **argv) { unsigned long blocks_used; unsigned blocks_percent_used; -#if ENABLE_FEATURE_HUMAN_READABLE - unsigned df_disp_hr = 1024; -#endif + unsigned long df_disp_hr = 1024; int status = EXIT_SUCCESS; unsigned opt; FILE *mount_table; struct mntent *mount_entry; struct statfs s; - /* default display is kilobytes */ - const char *disp_units_hdr = "1k-blocks"; + static const char ignored_mounts[] ALIGN1 = + "rootfs\0"; enum { - OPT_ALL = (1 << 0), - OPT_INODE = (ENABLE_FEATURE_HUMAN_READABLE ? (1 << 4) : (1 << 2)) - * ENABLE_FEATURE_DF_INODE + OPT_KILO = (1 << 0), + OPT_POSIX = (1 << 1), + OPT_ALL = (1 << 2) * ENABLE_FEATURE_DF_FANCY, + OPT_INODE = (1 << 3) * ENABLE_FEATURE_DF_FANCY, + OPT_BSIZE = (1 << 4) * ENABLE_FEATURE_DF_FANCY, + OPT_HUMAN = (1 << 5) * ENABLE_FEATURE_HUMAN_READABLE, + OPT_MEGA = (1 << 6) * ENABLE_FEATURE_HUMAN_READABLE, }; + const char *disp_units_hdr = NULL; + char *chp; -#if ENABLE_FEATURE_HUMAN_READABLE - opt_complementary = "h-km:k-hm:m-hk"; - opt = getopt32(argv, "ahmk" USE_FEATURE_DF_INODE("i")); - if (opt & (1 << 1)) { // -h +#if ENABLE_FEATURE_HUMAN_READABLE && ENABLE_FEATURE_DF_FANCY + opt_complementary = "k-mB:m-Bk:B-km"; +#elif ENABLE_FEATURE_HUMAN_READABLE + opt_complementary = "k-m:m-k"; +#endif + opt = getopt32(argv, "kP" + USE_FEATURE_DF_FANCY("aiB:") + USE_FEATURE_HUMAN_READABLE("hm") + USE_FEATURE_DF_FANCY(, &chp)); + if (opt & OPT_MEGA) + df_disp_hr = 1024*1024; + + if (opt & OPT_BSIZE) + df_disp_hr = xatoul_range(chp, 1, ULONG_MAX); /* disallow 0 */ + + /* From the manpage of df from coreutils-6.10: + Disk space is shown in 1K blocks by default, unless the environment + variable POSIXLY_CORRECT is set, in which case 512-byte blocks are used. + */ + if (getenv("POSIXLY_CORRECT")) /* TODO - a new libbb function? */ + df_disp_hr = 512; + + if (opt & OPT_HUMAN) { df_disp_hr = 0; disp_units_hdr = " Size"; } - if (opt & (1 << 2)) { // -m - df_disp_hr = 1024*1024; - disp_units_hdr = "1M-blocks"; - } - if (opt & OPT_INODE) { + if (opt & OPT_INODE) disp_units_hdr = " Inodes"; - } + + if (disp_units_hdr == NULL) { +#if ENABLE_FEATURE_HUMAN_READABLE + disp_units_hdr = xasprintf("%s-blocks", + make_human_readable_str(df_disp_hr, 0, !!(opt & OPT_POSIX))); #else - opt = getopt32(argv, "ak" USE_FEATURE_DF_INODE("i")); + disp_units_hdr = xasprintf("%d-blocks", df_disp_hr); #endif - - printf("Filesystem %-15sUsed Available Use%% Mounted on\n", - disp_units_hdr); + } + printf("Filesystem %-15sUsed Available %s Mounted on\n", + disp_units_hdr, (opt & OPT_POSIX) ? "Capacity" : "Use%"); mount_table = NULL; argv += optind; if (optind >= argc) { mount_table = setmntent(bb_path_mtab_file, "r"); - if (!mount_table) { + if (!mount_table) bb_perror_msg_and_die(bb_path_mtab_file); - } } while (1) { @@ -93,9 +119,8 @@ int df_main(int argc, char **argv) } } else { mount_point = *argv++; - if (!mount_point) { + if (!mount_point) break; - } mount_entry = find_mount_point(mount_point, bb_path_mtab_file); if (!mount_entry) { bb_error_msg("%s: can't find mount point", mount_point); @@ -118,10 +143,9 @@ int df_main(int argc, char **argv) s.f_blocks = s.f_files; s.f_bavail = s.f_bfree = s.f_ffree; s.f_bsize = 1; -#if ENABLE_FEATURE_HUMAN_READABLE + if (df_disp_hr) df_disp_hr = 1; -#endif } blocks_used = s.f_blocks - s.f_bfree; blocks_percent_used = 0; @@ -131,11 +155,10 @@ int df_main(int argc, char **argv) ) / (blocks_used + s.f_bavail); } -#ifdef WHY_IT_SHOULD_BE_HIDDEN - if (strcmp(device, "rootfs") == 0) { + /* GNU coreutils 6.10 skip certain mounts, try to be compatible. */ + if (index_in_strings(device, ignored_mounts) != -1) continue; - } -#endif + #ifdef WHY_WE_DO_IT_FOR_DEV_ROOT_ONLY /* ... and also this is the only user of find_block_device */ if (strcmp(device, "/dev/root") == 0) { @@ -164,12 +187,12 @@ int df_main(int argc, char **argv) #else printf(" %9lu %9lu %9lu %3u%% %s\n", kscale(s.f_blocks, s.f_bsize), - kscale(s.f_blocks-s.f_bfree, s.f_bsize), + kscale(s.f_blocks - s.f_bfree, s.f_bsize), kscale(s.f_bavail, s.f_bsize), blocks_percent_used, mount_point); #endif } } - fflush_stdout_and_exit(status); + return status; } diff --git a/include/usage.h b/include/usage.h index 41012af..a09f7ea 100644 --- a/include/usage.h +++ b/include/usage.h @@ -705,36 +705,40 @@ "\n do not poll for events" \ ) -/* -k is accepted but ignored for !HUMAN_READABLE, - * but we won't mention this (unimportant) */ -#if ENABLE_FEATURE_HUMAN_READABLE || ENABLE_FEATURE_DF_INODE -#define DF_HAS_OPTIONS(x) x -#else -#define DF_HAS_OPTIONS(x) -#endif #define df_trivial_usage \ - DF_HAS_OPTIONS("[-") \ - USE_FEATURE_HUMAN_READABLE("hmk") USE_FEATURE_DF_INODE("i") \ - DF_HAS_OPTIONS("] ") "[FILESYSTEM...]" + "[-Pk" \ + USE_FEATURE_HUMAN_READABLE("mh") \ + USE_FEATURE_DF_FANCY("ai] [-B SIZE") \ + "] [FILESYSTEM...]" #define df_full_usage "\n\n" \ "Print filesystem usage statistics\n" \ - DF_HAS_OPTIONS("\nOptions:") \ + "\nOptions:" \ + "\n -P POSIX output format" \ + "\n -k 1024-byte blocks (default)" \ USE_FEATURE_HUMAN_READABLE( \ + "\n -m 1M-byte blocks" \ "\n -h Human readable (e.g. 1K 243M 2G)" \ - "\n -m 1024*1024 blocks" \ - "\n -k 1024 blocks" \ ) \ - USE_FEATURE_DF_INODE( \ + USE_FEATURE_DF_FANCY( \ + "\n -a Show all filesystems" \ "\n -i Inodes" \ - ) + "\n -B SIZE Blocksize" \ + ) \ + #define df_example_usage \ "$ df\n" \ - "Filesystem 1k-blocks Used Available Use% Mounted on\n" \ + "Filesystem 1K-blocks Used Available Use% Mounted on\n" \ "/dev/sda3 8690864 8553540 137324 98% /\n" \ "/dev/sda1 64216 36364 27852 57% /boot\n" \ "$ df /dev/sda3\n" \ - "Filesystem 1k-blocks Used Available Use% Mounted on\n" \ - "/dev/sda3 8690864 8553540 137324 98% /\n" + "Filesystem 1K-blocks Used Available Use% Mounted on\n" \ + "/dev/sda3 8690864 8553540 137324 98% /\n" \ + "$ POSIXLY_CORRECT=sure df /dev/sda3\n" \ + "Filesystem 512B-blocks Used Available Use% Mounted on\n" \ + "/dev/sda3 17381728 17107080 274648 98% /\n" \ + "$ POSIXLY_CORRECT=yep df -P /dev/sda3\n" \ + "Filesystem 512-blocks Used Available Capacity Mounted on\n" \ + "/dev/sda3 17381728 17107080 274648 98% /\n" #define dhcprelay_trivial_usage \ "[client1,client2,...] [server_device]" diff --git a/libbb/human_readable.c b/libbb/human_readable.c index dad26ed..61c8567 100644 --- a/libbb/human_readable.c +++ b/libbb/human_readable.c @@ -32,7 +32,9 @@ const char* FAST_FUNC make_human_readable_str(unsigned long long size, unsigned long block_size, unsigned long display_unit) { /* The code will adjust for additional (appended) units */ - static const char zero_and_units[] ALIGN1 = { '0', 0, 'k', 'M', 'G', 'T' }; + static const char unit_chars[] ALIGN1 = { + '\0', 'K', 'M', 'G', 'T', 'P', 'E' + }; static const char fmt[] ALIGN1 = "%llu"; static const char fmt_tenths[] ALIGN1 = "%llu.%d%c"; @@ -42,26 +44,33 @@ const char* FAST_FUNC make_human_readable_str(unsigned long long size, int frac; const char *u; const char *f; + smallint no_tenths; - u = zero_and_units; - f = fmt; - frac = 0; + if (size == 0) + return "0"; - val = size * block_size; - if (val == 0) { - return u; + /* If block_size is 0 then do not print tenths */ + no_tenths = 0; + if (block_size == 0) { + no_tenths = 1; + block_size = 1; } + u = unit_chars; + val = size * block_size; + f = fmt; + frac = 0; + if (display_unit) { val += display_unit/2; /* Deal with rounding */ val /= display_unit; /* Don't combine with the line above!!! */ + /* will just print it as ulonglong (below) */ } else { - ++u; while ((val >= 1024) - && (u < zero_and_units + sizeof(zero_and_units) - 1) + && (u < unit_chars + sizeof(unit_chars) - 1) ) { f = fmt_tenths; - ++u; + u++; frac = (((int)(val % 1024)) * 10 + 1024/2) / 1024; val /= 1024; } @@ -69,9 +78,9 @@ const char* FAST_FUNC make_human_readable_str(unsigned long long size, ++val; frac = 0; } -#if 0 +#if 1 /* Sample code to omit decimal point and tenths digit. */ - if (/* no_tenths */ 1) { + if (no_tenths) { if (frac >= 5) { ++val; } diff --git a/scripts/defconfig b/scripts/defconfig index 686974b..96c1978 100644 --- a/scripts/defconfig +++ b/scripts/defconfig @@ -153,7 +153,7 @@ CONFIG_DD=y CONFIG_FEATURE_DD_SIGNAL_HANDLING=y CONFIG_FEATURE_DD_IBS_OBS=y CONFIG_DF=y -CONFIG_FEATURE_DF_INODE=y +CONFIG_FEATURE_DF_FANCY=y CONFIG_DIRNAME=y CONFIG_DOS2UNIX=y CONFIG_UNIX2DOS=y |