fuser: bugfixes and shrink. It was assuming that xmalloc zeroes returned area!

function                                             old     new   delta
scan_dir_links                                         -     106    +106
add_inode                                              -      89     +89
scan_link                                              -      78     +78
file_to_dev_inode                                      -      64     +64
search_dev_inode                                       -      63     +63
add_pid                                                -      39     +39
packed_usage                                       23948   23928     -20
fuser_add_pid                                         49       -     -49
fuser_file_to_dev_inode                               64       -     -64
fuser_search_dev_inode                                77       -     -77
fuser_scan_link                                       91       -     -91
fuser_scan_dir_links                                 108       -    -108
fuser_add_inode                                      124       -    -124
fuser_main                                          1450    1243    -207
------------------------------------------------------------------------------
(add/remove: 6/6 grow/shrink: 0/2 up/down: 439/-740)         Total: -301 bytes
   text    data     bss     dec     hex filename
 798327     658    7428  806413   c4e0d busybox_old
 797988     658    7428  806074   c4cba busybox_unstripped

1 files changed, 12 insertions, 11 deletions

diff --git a/include/usage.h b/include/usage.h
index fdf96d256..2a49454a1 100644
--- a/include/usage.h
+++ b/include/usage.h
@@ -757,7 +757,7 @@ USE_FEATURE_BRCTL_FANCY("\n" \
 #define dos2unix_full_usage \
        "Convert FILE from dos to unix format.\n" \
        "When no file is given, use stdin/stdout.\n" \
-     "\nOptions:\n" \
+     "\nOptions:" \
      "\n        -u      dos2unix" \
      "\n        -d      unix2dos"
 
@@ -1024,7 +1024,7 @@ USE_FEATURE_BRCTL_FANCY("\n" \
        "[-C CYLINDERS] [-H HEADS] [-S SECTORS] [-b SSZ] DISK"
 #define fdisk_full_usage \
        "Change partition table\n" \
-     "\nOptions:\n" \
+     "\nOptions:" \
      "\n        -u              Start and End are in sectors (instead of cylinders)" \
      "\n        -l              Show partition table for each DISK, then exit" \
         USE_FEATURE_FDISK_BLKSIZE( \
@@ -1213,13 +1213,14 @@ USE_FEATURE_BRCTL_FANCY("\n" \
 #define fuser_trivial_usage \
        "[options] FILE or PORT/PROTO"
 #define fuser_full_usage \
-       "Options:\n" \
-       "        -m      Show all processes on the same mounted fs\n" \
-       "        -s      Don't print or kill anything\n" \
-       "        -4      Search only IPv4 space\n" \
-       "        -6      Search only IPv6 space\n" \
-       "        -k      Kill all processes that match\n" \
-       "        -SIGNAL Signal to send (default: TERM)"
+       "Find processes which use FILEs or PORTs\n" \
+     "\nOptions:" \
+     "\n        -m      Find processes which use same fs as FILEs" \
+     "\n        -4      Search only IPv4 space" \
+     "\n        -6      Search only IPv6 space" \
+     "\n        -s      Silent: just exit with 0 if any processes are found" \
+     "\n        -k      Kill found processes (otherwise display PIDs)" \
+     "\n        -SIGNAL Signal to send (default: TERM)"
 
 #define getenforce_trivial_usage
 #define getenforce_full_usage
@@ -4093,7 +4094,7 @@ USE_FEATURE_BRCTL_FANCY("\n" \
        "[flags] FILESYSTEM|DIRECTORY"
 #define umount_full_usage \
        "Unmount file systems" \
-       "\n\nOptions:\n" \
+       "\n\nOptions:" \
         USE_FEATURE_UMOUNT_ALL( \
        "\n      -a      Unmount all file systems" USE_FEATURE_MTAB_SUPPORT(" in /etc/mtab")) \
         USE_FEATURE_MTAB_SUPPORT( \
@@ -4168,7 +4169,7 @@ USE_FEATURE_BRCTL_FANCY("\n" \
 #define unix2dos_full_usage \
        "Convert FILE from unix to dos format.\n" \
        "When no file is given, use stdin/stdout.\n" \
-     "\nOptions:\n" \
+     "\nOptions:" \
      "\n        -u      dos2unix" \
      "\n        -d      unix2dos"