wok annotate busybox/stuff/busybox-1.22-stat.u @ rev 16153

Up slitaz-dev-tools (2.1)
author Pascal Bellard <pascal.bellard@slitaz.org>
date Fri Mar 28 12:44:24 2014 +0000 (2014-03-28)
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children
rev   line source
pascal@15734 1 Add non standard stat -m support to display file block list
pascal@15734 2 Useful to patch read-only filesystems such as ISO9660, for defragmentation
pascal@15734 3 tools or boot loaders
pascal@15734 4 --- busybox-1.20.0/coreutils/stat.c
pascal@15734 5 +++ busybox-1.20.0/coreutils/stat.c
pascal@15734 6 @@ -23,6 +23,7 @@
pascal@15734 7 //usage: "\n -f Display filesystem status"
pascal@15734 8 //usage: "\n -L Follow links"
pascal@15734 9 //usage: "\n -t Display info in terse form"
pascal@15734 10 +//usage: "\n -m Display block list"
pascal@15734 11 //usage: IF_SELINUX(
pascal@15734 12 //usage: "\n -Z Print security context"
pascal@15734 13 //usage: )
pascal@15734 14 @@ -73,11 +74,13 @@
pascal@15734 15 //usage: )
pascal@15734 16
pascal@15734 17 #include "libbb.h"
pascal@15734 18 +#include <linux/fs.h>
pascal@15734 19
pascal@15734 20 #define OPT_FILESYS (1 << 0)
pascal@15734 21 #define OPT_TERSE (1 << 1)
pascal@15734 22 #define OPT_DEREFERENCE (1 << 2)
pascal@15734 23 -#define OPT_SELINUX (1 << 3)
pascal@15734 24 +#define OPT_MAP (1 << 3)
pascal@15734 25 +#define OPT_SELINUX (1 << 4)
pascal@15734 26
pascal@15734 27 #if ENABLE_FEATURE_STAT_FORMAT
pascal@15734 28 typedef bool (*statfunc_ptr)(const char *, const char *);
pascal@15734 29 @@ -425,6 +428,26 @@
pascal@15734 30
pascal@15734 31 /* Stat the file system and print what we find. */
pascal@15734 32 #if !ENABLE_FEATURE_STAT_FORMAT
pascal@15734 33 +#define do_mapfile(filename, format) do_mapfile(filename)
pascal@15734 34 +#endif
pascal@15734 35 +static bool do_mapfile(const char *filename, const char *format)
pascal@15734 36 +{
pascal@15734 37 + int i = 0;
pascal@15734 38 + int fd = xopen(filename, O_RDONLY);
pascal@15734 39 +
pascal@15734 40 +#if ENABLE_FEATURE_STAT_FORMAT
pascal@15734 41 + (void) format;
pascal@15734 42 +#endif
pascal@15734 43 + while (1) {
pascal@15734 44 + int blk = i++;
pascal@15734 45 + if (ioctl(fd,FIBMAP,&blk) < 0 || blk == 0) break;
pascal@15734 46 + printf("%u\n",blk);
pascal@15734 47 + }
pascal@15734 48 + return 1;
pascal@15734 49 +}
pascal@15734 50 +
pascal@15734 51 +/* Stat the file system and print what we find. */
pascal@15734 52 +#if !ENABLE_FEATURE_STAT_FORMAT
pascal@15734 53 #define do_statfs(filename, format) do_statfs(filename)
pascal@15734 54 #endif
pascal@15734 55 static bool do_statfs(const char *filename, const char *format)
pascal@15734 56 @@ -720,7 +743,7 @@
pascal@15734 57 statfunc_ptr statfunc = do_stat;
pascal@15734 58
pascal@15734 59 opt_complementary = "-1"; /* min one arg */
pascal@15734 60 - opts = getopt32(argv, "ftL"
pascal@15734 61 + opts = getopt32(argv, "ftLm"
pascal@15734 62 IF_SELINUX("Z")
pascal@15734 63 IF_FEATURE_STAT_FORMAT("c:", &format)
pascal@15734 64 );
pascal@15734 65 @@ -731,6 +754,9 @@
pascal@15734 66 selinux_or_die();
pascal@15734 67 }
pascal@15734 68 #endif
pascal@15734 69 + if (opts & OPT_MAP) { /* -m */
pascal@15734 70 + statfunc = do_mapfile;
pascal@15734 71 + }
pascal@15734 72 ok = 1;
pascal@15734 73 argv += optind;
pascal@15734 74 for (i = 0; argv[i]; ++i)