wok annotate busybox/stuff/busybox-1.32-stat.u @ rev 24130

Add tnylpo
author Pascal Bellard <pascal.bellard@slitaz.org>
date Mon Oct 18 14:47:15 2021 +0000 (2021-10-18)
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children
rev   line source
pascal@23877 1 Add non standard stat -m support to display file block list
pascal@23877 2 Useful to patch read-only filesystems such as ISO9660, for defragmentation
pascal@23877 3 tools or boot loaders
pascal@23877 4 --- busybox-1.32/coreutils/stat.c
pascal@23877 5 +++ busybox-1.32/coreutils/stat.c
pascal@23877 6 @@ -54,6 +54,7 @@
pascal@23877 7 //usage: )
pascal@23877 8 //usage: "\n -L Follow links"
pascal@23877 9 //usage: "\n -t Terse display"
pascal@23877 10 +//usage: "\n -m Display block list"
pascal@23877 11 //usage: IF_SELINUX(
pascal@23877 12 //usage: "\n -Z Print security context"
pascal@23877 13 //usage: )
pascal@23877 14 @@ -106,13 +107,15 @@
pascal@23877 15 //usage: )
pascal@23877 16
pascal@23877 17 #include "libbb.h"
pascal@23877 18 +#include <linux/fs.h>
pascal@23877 19 #include "common_bufsiz.h"
pascal@23877 20
pascal@23877 21 enum {
pascal@23877 22 OPT_TERSE = (1 << 0),
pascal@23877 23 OPT_DEREFERENCE = (1 << 1),
pascal@23877 24 - OPT_FILESYS = (1 << 2) * ENABLE_FEATURE_STAT_FILESYSTEM,
pascal@23877 25 - OPT_SELINUX = (1 << (2+ENABLE_FEATURE_STAT_FILESYSTEM)) * ENABLE_SELINUX,
pascal@23877 26 + OPT_MAP = (1 << 2),
pascal@23877 27 + OPT_FILESYS = (1 << 3) * ENABLE_FEATURE_STAT_FILESYSTEM,
pascal@23877 28 + OPT_SELINUX = (1 << (3+ENABLE_FEATURE_STAT_FILESYSTEM)) * ENABLE_SELINUX,
pascal@23877 29 };
pascal@23877 30
pascal@23877 31 #if ENABLE_FEATURE_STAT_FORMAT
pascal@23877 32 @@ -463,6 +466,25 @@
pascal@23877 33 }
pascal@23877 34 #endif /* FEATURE_STAT_FORMAT */
pascal@23877 35
pascal@23877 36 +#if !ENABLE_FEATURE_STAT_FORMAT
pascal@23877 37 +#define do_mapfile(filename, format) do_mapfile(filename)
pascal@23877 38 +#endif
pascal@23877 39 +static bool do_mapfile(const char *filename, const char *format)
pascal@23877 40 +{
pascal@23877 41 + int i = 0;
pascal@23877 42 + int fd = xopen(filename, O_RDONLY);
pascal@23877 43 +
pascal@23877 44 +#if ENABLE_FEATURE_STAT_FORMAT
pascal@23877 45 + (void) format;
pascal@23877 46 +#endif
pascal@23877 47 + while (1) {
pascal@23877 48 + int blk = i++;
pascal@23877 49 + if (ioctl(fd,FIBMAP,&blk) < 0 || blk == 0) break;
pascal@23877 50 + printf("%u\n",blk);
pascal@23877 51 + }
pascal@23877 52 + return 1;
pascal@23877 53 +}
pascal@23877 54 +
pascal@23877 55 #if ENABLE_FEATURE_STAT_FILESYSTEM
pascal@23877 56 /* Stat the file system and print what we find. */
pascal@23877 57 #if !ENABLE_FEATURE_STAT_FORMAT
pascal@23877 58 @@ -767,7 +789,7 @@
pascal@23877 59 opts =
pascal@23877 60 #endif
pascal@23877 61 getopt32(argv, "^"
pascal@23877 62 - "tL"
pascal@23877 63 + "tLm"
pascal@23877 64 IF_FEATURE_STAT_FILESYSTEM("f")
pascal@23877 65 IF_SELINUX("Z")
pascal@23877 66 IF_FEATURE_STAT_FORMAT("c:")
pascal@23877 67 @@ -783,6 +805,11 @@
pascal@23877 68 selinux_or_die();
pascal@23877 69 }
pascal@23877 70 #endif
pascal@23877 71 +#if ENABLE_FEATURE_STAT_FILESYSTEM
pascal@23877 72 + if (opts & OPT_MAP) { /* -m */
pascal@23877 73 + statfunc = do_mapfile;
pascal@23877 74 + }
pascal@23877 75 +#endif
pascal@23877 76 ok = 1;
pascal@23877 77 argv += optind;
pascal@23877 78 for (i = 0; argv[i]; ++i)