Tito writes:

Hi to all,
here is a new patch for bb's devfsd. The news are:

1) Size reduction for the basic setup with no options compiled in from :
     text        data     bss     dec       hex   filename
    10591     392      543    11526   2d06 devfsd.o
    rw-r--r--    1 root     root        18536 Dec 18 21:52 devfsd.o

    to:

    text        data     bss     dec        hex  filename
    9303      392      543    10238    27fe devfsd.o
    rw-r--r--    1 root     root        16528 Dec 18 22:02 devfsd.o

   With this setup you should not expect much output from devfsd
    ( just at start or with -v) and if some error occurs it only exits 1.
   To have more output enable:  " Increases logging (and size)" (+1568 b).

2) The option "Adds function names to program output" was removed from config menu
    and now to enable debug output you can use bb's standard option:
    "Build BusyBox with Debugging symbols".
    Be careful as with this option enabled a lot of data are outputted to /dev/log and/or to stderr.

3) A new option: "Enables the -fg and -np option" was added to config menu  (+128 b).

BTW: option "Adds support for MODLOAD keyword in devsfd.conf"  adds 268 b.

4) The following keywords in devsfd.conf are supported:
   "CLEAR_CONFIG", "INCLUDE", "OPTIONAL_INCLUDE", "RESTORE",
   "PERMISSIONS", "EXECUTE", "COPY", "IGNORE",  "MKOLDCOMPAT",
   "MKNEWCOMPAT","RMOLDCOMPAT", "RMNEWCOMPAT".

   But only if they are written UPPERCASE!!!!!!!!

5)Help text in usage.h was modified.

6)Something that I have forgotten..........

I've tested this for the last week on my box and it seems to work as expected.

Thanks in advance and please apply.

Ciao,

Tito


git-svn-id: svn://busybox.net/trunk/busybox@8125 69ca8d6d-28ef-0310-b511-8ec308f3f277

3 files changed, 477 insertions, 345 deletions

diff --git a/include/usage.h b/include/usage.h
index 21fb2afe6..6db0385fb 100644
--- a/include/usage.h
+++ b/include/usage.h
@@ -338,17 +338,25 @@
 #define deluser_full_usage \
          "Deletes user USER from the system"
 
+#ifdef CONFIG_DEVFSD_FG_NP
+  #define USAGE_DEVFSD_FG_NP(a) a
+#else
+  #define USAGE_DEVFSD_FG_NP(a)
+#endif
+
 #define devfsd_trivial_usage \
-        "mntpnt [-v] [-fg] [-np]"
+        "mntpnt [-v]"\
+        USAGE_DEVFSD_FG_NP("[-fg][-np]" )
 #define devfsd_full_usage \
         "Optional daemon for managing devfs (the Linux Device Filesystem).\n" \
         "\nOptions:\n" \
         "\tmntpnt\tThe mount point where devfs is mounted.\n\n" \
         "\t-v\tPrint the protocol version numbers for devfsd\n" \
-        "\t\tand the kernel-side protocol version and exits.\n" \
-        "\t-fg\tRun the daemon in the foreground.\n\n" \
-        "\t-np\tExit  after  parsing  the configuration file and processing syn-\n" \
-        "\t\tthetic REGISTER events. Do not poll for events." 
+        "\t\tand the kernel-side protocol version and exits." \
+        USAGE_DEVFSD_FG_NP( "\n\n\t-fg\tRun the daemon in the foreground.\n\n" \
+        "\t-np\tExit  after  parsing  the configuration file\n" \
+        "\t\tand processing synthetic REGISTER events.\n" \
+        "\t\tDo not poll for events.")
 
 #ifdef CONFIG_FEATURE_HUMAN_READABLE
   #define USAGE_HUMAN_READABLE(a) a
diff --git a/miscutils/Config.in b/miscutils/Config.in
index 4a013cbd5..4216b2845 100644
--- a/miscutils/Config.in
+++ b/miscutils/Config.in
@@ -46,27 +46,34 @@ config CONFIG_DEVFSD
         help
           Provides compatibility with old device names on a devfs systems.
           You should set it to true if you have devfs enabled.
+          The following keywords in devsfd.conf are supported:
+          "CLEAR_CONFIG", "INCLUDE", "OPTIONAL_INCLUDE", "RESTORE",
+          "PERMISSIONS", "EXECUTE", "COPY", "IGNORE",
+          "MKOLDCOMPAT", "MKNEWCOMPAT","RMOLDCOMPAT", "RMNEWCOMPAT".
+
+           But only if they are written UPPERCASE!!!!!!!!
 
 config CONFIG_DEVFSD_MODLOAD
-        bool "Adds support for MODLOAD action"
+        bool "Adds support for MODLOAD keyword in devsfd.conf"
         default n
         depends on CONFIG_DEVFSD
         help
           This actually doesn't work with busybox  modutils but needs the real modutils.
 
-config CONFIG_DEVFSD_VERBOSE
-        bool "Increases logging to stderr and syslog"
+config CONFIG_DEVFSD_FG_NP
+        bool "Enables the -fg and -np options"
         default n
         depends on CONFIG_DEVFSD
         help
-          Increases logging to stderr and syslog.
+                -fg     Run the daemon in the foreground.
+                -np     Exit  after  parsing  the configuration file. Do not poll for events.
 
-config CONFIG_DEVFSD_DEBUG
-        bool "Adds function names to program output"
+config CONFIG_DEVFSD_VERBOSE
+        bool "Increases logging (and size)"
         default n
         depends on CONFIG_DEVFSD
         help
-          Adds function names to program output.
+          Increases logging to stderr or syslog.
 
 config CONFIG_LAST
         bool "last"
diff --git a/miscutils/devfsd.c b/miscutils/devfsd.c
index 9f998e723..aa7a826b7 100644
--- a/miscutils/devfsd.c
+++ b/miscutils/devfsd.c
@@ -93,7 +93,7 @@
 #define DEVFSDIOC_GET_PROTO_REV         _IOR(DEVFSD_IOCTL_BASE, 0, int)
 #define DEVFSDIOC_SET_EVENT_MASK        _IOW(DEVFSD_IOCTL_BASE, 2, int)
 #define DEVFSDIOC_RELEASE_EVENT_QUEUE   _IOW(DEVFSD_IOCTL_BASE, 3, int)
-#define DEVFSDIOC_SET_DEBUG_MASK        _IOW(DEVFSD_IOCTL_BASE, 4, int)
+#define DEVFSDIOC_SET_CONFIG_DEBUG_MASK _IOW(DEVFSD_IOCTL_BASE, 4, int)
 #define DEVFSD_NOTIFY_REGISTERED    0
 #define DEVFSD_NOTIFY_UNREGISTERED  1
 #define DEVFSD_NOTIFY_ASYNC_OPEN    2
@@ -102,8 +102,9 @@
 #define DEVFSD_NOTIFY_CHANGE        5
 #define DEVFSD_NOTIFY_CREATE        6
 #define DEVFSD_NOTIFY_DELETE        7
-#define DEVFS_PATHLEN               1024  /*  Never change this otherwise the
-                                              binary interface will change   */
+#define DEVFS_PATHLEN               1024
+/*  Never change this otherwise the binary interface will change   */
+
 struct devfsd_notify_struct
 {   /*  Use native C types to ensure same types in kernel and user space     */
     unsigned int type;           /*  DEVFSD_NOTIFY_* value                   */
@@ -118,18 +119,12 @@ struct devfsd_notify_struct
     char devname[DEVFS_PATHLEN]; /*  This will be '\0' terminated            */
 };
 
-
-
-/* These are now in Config.in */
-/* define this if you want to have more output on stderr and syslog at the same time */
-/*#define CONFIG_DEVFSD_VERBOSE*/
-/* define this if you want to have the function names in output */
-/*#define CONFIG_DEVFSD_DEBUG*/
-
 #define BUFFER_SIZE 16384
 #define DEVFSD_VERSION "1.3.25"
 #define CONFIG_FILE  "/etc/devfsd.conf"
 #define MODPROBE                "/sbin/modprobe"
+#define MODPROBE_SWITCH_1 "-k"
+#define MODPROBE_SWITCH_2 "-C"
 #define CONFIG_MODULES_DEVFS "/etc/modules.devfs"
 #define MAX_ARGS     (6 + 1)
 #define MAX_SUBEXPR  10
@@ -221,7 +216,7 @@ static void service(struct stat statbuf, char *path);
 static int st_expr_expand(char *, unsigned, const char *, const char *(*) (const char *, void *), void *);
 static const char *get_old_name(const char *, unsigned, char *, unsigned, unsigned);
 static int mksymlink (const char *oldpath, const char *newpath);
-static void read_config_file (const char *path, int optional, unsigned long *event_mask);
+static void read_config_file (char *path, int optional, unsigned long *event_mask);
 static void process_config_line (const char *, unsigned long *);
 static int  do_servicing (int, unsigned long);
 static void service_name (const struct devfsd_notify_struct *);
@@ -251,11 +246,15 @@ static char get_old_ide_name (unsigned , unsigned);
 static char *write_old_sd_name (char *, unsigned, unsigned, char *);
 
 /* busybox functions */
+#ifdef CONFIG_DEVFSD_VERBOSE
 static void msg_logger(int die, int pri, const char * fmt, ... );
+#endif
 static void do_ioctl(int die, int fd, int request, unsigned long event_mask_flag);
 static void fork_and_execute(int die, char *arg0, char **arg );
 static int get_uid_gid ( int, const char *);
 static void safe_memcpy( char * dest, const char * src, int len);
+static unsigned int scan_dev_name_common(const char *d, unsigned int n, int addendum, char *ptr);
+static unsigned int scan_dev_name(const char *d, unsigned int n, char *ptr);
 
 /* Structs and vars */
 static struct config_entry_struct *first_config = NULL;
@@ -297,13 +296,14 @@ static struct event_type
 
 extern void xregcomp(regex_t * preg, const char *regex, int cflags);
 
-const char * const bb_msg_bad_config            = "bad %s config file: %s\n";
 const char * const bb_msg_proto_rev                     = "protocol revision";
 #ifdef CONFIG_DEVFSD_VERBOSE
+const char * const bb_msg_bad_config            = "bad %s config file: %s\n";
 const char * const bb_msg_small_buffer          = "buffer too small\n";
-const char * const bb_msg_variable_not_found= "variable: %s not found\n";
+const char * const bb_msg_variable_not_found = "variable: %s not found\n";
 #endif
 
+#ifdef CONFIG_DEVFSD_VERBOSE
 static void msg_logger(int die, int pri, const char * fmt, ... )
 {
         va_list ap;
@@ -315,7 +315,7 @@ static void msg_logger(int die, int pri, const char * fmt, ... )
                 vsyslog( pri , fmt , ap);
                 closelog();
         }
-#ifndef CONFIG_DEVFSD_VERBOSE
+#ifndef CONFIG_DEBUG
         else
 #endif
                 bb_verror_msg(fmt, ap);
@@ -323,12 +323,17 @@ static void msg_logger(int die, int pri, const char * fmt, ... )
         if(die==DIE)
                 exit(EXIT_FAILURE);
 }
-
+#endif
 
 static void do_ioctl(int die, int fd, int request, unsigned long event_mask_flag)
 {
-        if (ioctl (fd, request, event_mask_flag) != 0)
+#ifdef CONFIG_DEVFSD_VERBOSE
+        if (ioctl (fd, request, event_mask_flag) == -1)
                 msg_logger(die, LOG_ERR, "ioctl(): %m\n");
+#else
+        if (ioctl (fd, request, event_mask_flag) == -1)
+                exit(EXIT_FAILURE);
+#endif
 }
 
 static void fork_and_execute(int die, char *arg0, char **arg )
@@ -340,7 +345,12 @@ static void fork_and_execute(int die, char *arg0, char **arg )
                 break;
         case -1:
                 /*  Parent: Error  : die or return */
+#ifdef CONFIG_DEVFSD_VERBOSE
                 msg_logger(die, LOG_ERR,(char *) bb_msg_memory_exhausted);
+#else
+                if(die == DIE)
+                        exit(EXIT_FAILURE);
+#endif
                 return;
         default:
                 /*  Parent : ok : return or exit  */
@@ -355,7 +365,11 @@ static void fork_and_execute(int die, char *arg0, char **arg )
         if(arg0 != NULL )
         {
                 execvp (arg0, arg);
+#ifdef CONFIG_DEVFSD_VERBOSE
                 msg_logger(DIE, LOG_ERR, "execvp(): %s: %m\n", arg0);
+#else
+                exit(EXIT_FAILURE);
+#endif
         }
 }
 
@@ -365,13 +379,60 @@ static void safe_memcpy( char *dest, const char *src, int len)
         dest[len] = '\0';
 }
 
+static unsigned int scan_dev_name_common(const char *d, unsigned int n, int addendum, char *ptr)
+{
+        if( d[n - 4]=='d' && d[n - 3]=='i' && d[n - 2]=='s' && d[n - 1]=='c')
+                return (2 + addendum);
+        else if( d[n - 2]=='c' && d[n - 1]=='d')
+                return (3 + addendum);
+        else if(ptr[0]=='p' && ptr[1]=='a' && ptr[2]=='r' && ptr[3]=='t')
+                return (4 + addendum);
+        else if( ptr[n - 2]=='m' && ptr[n - 1]=='t')
+                return (5 + addendum);
+        else
+                return 0;
+}
+
+static unsigned int scan_dev_name(const char *d, unsigned int n, char *ptr)
+{
+        if(d[0]=='s' && d[1]=='c' && d[2]=='s' && d[3]=='i' && d[4]=='/')
+        {
+                if( d[n - 7]=='g' && d[n - 6]=='e' && d[n - 5]=='n' &&
+                        d[n - 4]=='e' && d[n - 3]=='r' && d[n - 2]=='i' &&
+                        d[n - 1]=='c' )
+                        return 1;
+                return scan_dev_name_common(d, n, 0, ptr);
+        }
+        else if(d[0]=='i' && d[1]=='d' && d[2]=='e' && d[3]=='/' &&
+                        d[4]=='h' && d[5]=='o' && d[6]=='s' && d[7]=='t')
+        {
+                return scan_dev_name_common(d, n, 4, ptr);
+        }
+        else if(d[0]=='s' && d[1]=='b' && d[2]=='p' && d[3]=='/')
+        {
+                return 10;
+        }
+        else if(d[0]=='v' && d[1]=='c' && d[2]=='c' && d[3]=='/')
+        {
+                return 11;
+        }
+        else if(d[0]=='p' && d[1]=='t' && d[2]=='y' && d[3]=='/')
+        {
+                return 12;
+        }
+        return 0;
+}
+
 /*  Public functions follow  */
 
 int devfsd_main (int argc, char **argv)
 {
         int print_version = FALSE;
+#ifdef CONFIG_DEVFSD_FG_NP
         int do_daemon = TRUE;
         int no_polling = FALSE;
+#endif
+        int do_scan;
         int fd, proto_rev, count;
         unsigned long event_mask = 0;
         struct sigaction new_action;
@@ -382,25 +443,42 @@ int devfsd_main (int argc, char **argv)
 
         for (count = 2; count < argc; ++count)
         {
-                if (strcmp (argv[count], "-v") == 0)
-                        print_version = TRUE;
-                else if (strcmp (argv[count], "-fg") == 0)
-                        do_daemon = FALSE;
-                else if (strcmp (argv[count], "-np") == 0)
-                        no_polling = TRUE;
-                else
-                        bb_show_usage();
+                if(argv[count][0] == '-')
+                {
+                        if(argv[count][1]=='v' && !argv[count][2]) /* -v */
+                                        print_version = TRUE;
+#ifdef CONFIG_DEVFSD_FG_NP
+                        else if(argv[count][1]=='f' && argv[count][2]=='g' && !argv[count][3]) /* -fg */
+                                        do_daemon = FALSE;
+                        else if(argv[count][1]=='n' && argv[count][2]=='p' && !argv[count][3]) /* -np */
+                                        no_polling = TRUE;
+#endif
+                        else
+                                bb_show_usage();
+                }
         }
 
+        /* strip last / from mount point, so we don't need to check for it later */
+        while( argv[1][1]!='\0' && argv[1][strlen(argv[1])-1] == '/' )
+                argv[1][strlen(argv[1]) -1] = '\0';
+
         mount_point = argv[1];
 
         if (chdir (mount_point) != 0)
+#ifdef CONFIG_DEVFSD_VERBOSE
                 bb_error_msg_and_die( " %s: %m", mount_point);
+#else
+                exit(EXIT_FAILURE);
+#endif
 
         fd = bb_xopen (".devfsd", O_RDONLY);
 
         if (fcntl (fd, F_SETFD, FD_CLOEXEC) != 0)
+#ifdef CONFIG_DEVFSD_VERBOSE
                 bb_error_msg( "FD_CLOEXEC");
+#else
+                exit(EXIT_FAILURE);
+#endif
 
         do_ioctl(DIE, fd, DEVFSDIOC_GET_PROTO_REV,(int )&proto_rev);
 
@@ -428,7 +506,11 @@ int devfsd_main (int argc, char **argv)
         /*  Set up SIGHUP and SIGUSR1 handlers  */
         new_action.sa_handler = signal_handler;
         if (sigaction (SIGHUP, &new_action, NULL) != 0 || sigaction (SIGUSR1, &new_action, NULL) != 0 )
+#ifdef CONFIG_DEVFSD_VERBOSE
                 bb_error_msg_and_die( "sigaction()");
+#else
+                exit(EXIT_FAILURE);
+#endif
 
         bb_printf("%s v%s  started for %s\n",bb_applet_name, DEVFSD_VERSION, mount_point);
 
@@ -437,21 +519,25 @@ int devfsd_main (int argc, char **argv)
         read_config_file (CONFIG_FILE, FALSE, &event_mask);
         /*  Do the scan before forking, so that boot scripts see the finished product  */
         dir_operation(SERVICE,mount_point,0,NULL);
+#ifdef CONFIG_DEVFSD_FG_NP
         if (no_polling)
                 exit (0);
         if (do_daemon)
         {
+#endif
                 /*  Release so that the child can grab it  */
                 do_ioctl(DIE, fd, DEVFSDIOC_RELEASE_EVENT_QUEUE, 0);
                 fork_and_execute(DIE, NULL, NULL);
                 setsid ();        /*  Prevent hangups and become pgrp leader         */
+#ifdef CONFIG_DEVFSD_FG_NP
         }
         else
                 setpgid (0, 0);  /*  Become process group leader                    */
+#endif
 
         while (TRUE)
         {
-                int do_scan = do_servicing (fd, event_mask);
+                do_scan = do_servicing (fd, event_mask);
 
                 free_config ();
                 read_config_file (CONFIG_FILE, FALSE, &event_mask);
@@ -463,7 +549,7 @@ int devfsd_main (int argc, char **argv)
 
 /*  Private functions follow  */
 
-static void read_config_file (const char *path, int optional, unsigned long *event_mask)
+static void read_config_file (char *path, int optional, unsigned long *event_mask)
 /*  [SUMMARY] Read a configuration database.
     <path> The path to read the database from. If this is a directory, all
     entries in that directory will be read (except hidden entries).
@@ -477,14 +563,18 @@ static void read_config_file (const char *path, int optional, unsigned long *eve
         char buf[STRING_LENGTH];
         char *line=NULL;
 
-#ifdef CONFIG_DEVFSD_DEBUG
-        msg_logger( NO_DIE, LOG_INFO, "read_config_file()\n");
+#ifdef CONFIG_DEBUG
+        msg_logger( NO_DIE, LOG_INFO, "read_config_file(): %s\n", path);
 #endif
         if (stat (path, &statbuf) != 0 || statbuf.st_size == 0 )
                 goto read_config_file_err;
 
         if ( S_ISDIR (statbuf.st_mode) )
         {
+                /* strip last / from dirname so we don't need to check for it later */
+                while( path  && path[1]!='\0' && path[strlen(path)-1] == '/')
+                        path[strlen(path) -1] = '\0';
+
                 dir_operation(READ_CONFIG, path, 0, event_mask);
                 return;
         }
@@ -513,6 +603,9 @@ static void read_config_file (const char *path, int optional, unsigned long *eve
 read_config_file_err:
 #ifdef CONFIG_DEVFSD_VERBOSE
         msg_logger(((optional ==  0 ) && (errno == ENOENT))? DIE : NO_DIE, LOG_ERR, "read config file: %s: %m\n", path);
+#else
+        if(optional ==  0  && errno == ENOENT)
+                exit(EXIT_FAILURE);
 #endif
         return;
 }   /*  End Function read_config_file   */
@@ -532,7 +625,14 @@ static void process_config_line (const char *line, unsigned long *event_mask)
         char * msg="";
         char *ptr;
 
-#ifdef CONFIG_DEVFSD_DEBUG
+        /* !!!! Only Uppercase Keywords in devsfd.conf */
+        const char *options[] = {       "CLEAR_CONFIG", "INCLUDE", "OPTIONAL_INCLUDE", "RESTORE",
+                                                                "PERMISSIONS", "MODLOAD", "EXECUTE", "COPY", "IGNORE",
+                                                                "MKOLDCOMPAT", "MKNEWCOMPAT","RMOLDCOMPAT", "RMNEWCOMPAT", 0 };
+
+        short int i;
+
+#ifdef CONFIG_DEBUG
         msg_logger( NO_DIE, LOG_INFO, "process_config_line()\n");
 #endif
 
@@ -540,26 +640,32 @@ static void process_config_line (const char *line, unsigned long *event_mask)
         num_args = sscanf (line, "%s %s %s %s %s %s %s %s %s %s",
                         when, name, what,
                         p[0], p[1], p[2], p[3], p[4], p[5], p[6]);
-        if (strcasecmp (when, "CLEAR_CONFIG") == 0)
+
+        i = compare_string_array(options, when );
+
+        /*"CLEAR_CONFIG"*/
+        if( i == 0)
         {
                 free_config ();
                 *event_mask = 0;
                 return;
         }
-        if (num_args < 2)
+
+        if ( num_args < 2)
                 goto process_config_line_err;
 
-        if ( (strcasecmp (when, "INCLUDE") == 0) ||
-                 (strcasecmp (when, "OPTIONAL_INCLUDE") == 0) )
+        /* "INCLUDE" & "OPTIONAL_INCLUDE" */
+        if( i == 1 || i == 2 )
         {
                 st_expr_expand (name, STRING_LENGTH, name, get_variable, NULL );
-#ifdef CONFIG_DEVFSD_VERBOSE
+#ifdef CONFIG_DEBUG
                 msg_logger( NO_DIE, LOG_INFO, "%sinclude: %s\n",(toupper (when[0]) == 'I') ? "": "optional_", name);
 #endif
                 read_config_file (name, (toupper (when[0]) == 'I') ? FALSE : TRUE, event_mask);
                 return;
         }
-        if (strcasecmp (when, "RESTORE") == 0)
+        /* "RESTORE" */
+        if( i == 3)
         {
                 dir_operation(RESTORE,name, strlen (name),NULL);
                 return;
@@ -583,65 +689,72 @@ static void process_config_line (const char *line, unsigned long *event_mask)
                 goto process_config_line_err;
         }
 
-        if (strcasecmp (what, "PERMISSIONS") == 0)
+        i = compare_string_array(options, what );
+
+        switch(i)
         {
-                new->action.what = AC_PERMISSIONS;
-                /*  Get user and group  */
-                if ( ( ptr = strchr (p[0], '.') ) == NULL )
-                {
-                        msg="UID.GID";
-                        goto process_config_line_err; /*"missing '.' in UID.GID */
-                }
+                case 4: /* "PERMISSIONS" */
+                        new->action.what = AC_PERMISSIONS;
+                        /*  Get user and group  */
+                        if ( ( ptr = strchr (p[0], '.') ) == NULL )
+                        {
+                                msg="UID.GID";
+                                goto process_config_line_err; /*"missing '.' in UID.GID */
+                        }
 
-                *ptr++ = '\0';
-                new->u.permissions.uid = get_uid_gid (UID, p[0]);
-                new->u.permissions.gid = get_uid_gid (GID, ptr);
-                /*  Get mode  */
-                new->u.permissions.mode = get_mode (p[1]);
-        }
+                        *ptr++ = '\0';
+                        new->u.permissions.uid = get_uid_gid (UID, p[0]);
+                        new->u.permissions.gid = get_uid_gid (GID, ptr);
+                        /*  Get mode  */
+                        new->u.permissions.mode = get_mode (p[1]);
+                        break;
 #ifdef CONFIG_DEVFSD_MODLOAD
-        else if (strcasecmp (what, "MODLOAD") == 0)
-                /*This  action will pass "/dev/$devname" (i.e. "/dev/" prefixed to
-                the device name) to the module loading  facility.  In  addition,
-                the /etc/modules.devfs configuration file is used.*/
-
-                 new->action.what = AC_MODLOAD;
+                case 5: /*  MODLOAD */
+                        /*This  action will pass "/dev/$devname" (i.e. "/dev/" prefixed to
+                        the device name) to the module loading  facility.  In  addition,
+                        the /etc/modules.devfs configuration file is used.*/
+                         new->action.what = AC_MODLOAD;
+                         break;
 #endif
-        else if (strcasecmp (what, "EXECUTE") == 0)
-        {
-                new->action.what = AC_EXECUTE;
-                num_args -= 3;
+                case 6: /* EXECUTE */
+                        new->action.what = AC_EXECUTE;
+                        num_args -= 3;
 
-                for (count = 0; count < num_args; ++count)
-                        new->u.execute.argv[count] = bb_xstrdup (p[count]);
-
-                new->u.execute.argv[num_args] = NULL;
-        }
-        else if (strcasecmp (what, "COPY") == 0)
-        {
-                new->action.what = AC_COPY;
-                num_args -= 3;
-                if (num_args != 2)
-                        goto process_config_line_err; /* missing path and function in line */
+                        for (count = 0; count < num_args; ++count)
+                                new->u.execute.argv[count] = bb_xstrdup (p[count]);
 
-                new->u.copy.source = bb_xstrdup (p[0]);
-                new->u.copy.destination = bb_xstrdup (p[1]);
-        }
-        else if (strcasecmp (what, "IGNORE") == 0)
-                new->action.what = AC_IGNORE;
-        else if (strcasecmp (what, "MKOLDCOMPAT") == 0)
-                new->action.what = AC_MKOLDCOMPAT;
-        else if (strcasecmp (what, "MKNEWCOMPAT") == 0)
-                new->action.what = AC_MKNEWCOMPAT;
-        else if (strcasecmp (what, "RMOLDCOMPAT") == 0)
-                new->action.what = AC_RMOLDCOMPAT;
-        else if (strcasecmp (what, "RMNEWCOMPAT") == 0)
-                new->action.what = AC_RMNEWCOMPAT;
-        else
-        {
-                msg ="WHAT in";
-                goto process_config_line_err;
-        }
+                        new->u.execute.argv[num_args] = NULL;
+                        break;
+                case 7: /* COPY */
+                        new->action.what = AC_COPY;
+                        num_args -= 3;
+                        if (num_args != 2)
+                                goto process_config_line_err; /* missing path and function in line */
+
+                        new->u.copy.source = bb_xstrdup (p[0]);
+                        new->u.copy.destination = bb_xstrdup (p[1]);
+                        break;
+                case 8: /* IGNORE */
+                /* FALLTROUGH */
+                case 9: /* MKOLDCOMPAT */
+                /* FALLTROUGH */
+                case 10: /* MKNEWCOMPAT */
+                /* FALLTROUGH */
+                case 11:/* RMOLDCOMPAT */
+                /* FALLTROUGH */
+                case 12: /* RMNEWCOMPAT */
+                /*      AC_IGNORE                                       6
+                        AC_MKOLDCOMPAT                          7
+                        AC_MKNEWCOMPAT                          8
+                        AC_RMOLDCOMPAT                          9
+                        AC_RMNEWCOMPAT                          10*/
+                        new->action.what = i - 2;
+                        break;
+                default:
+                        msg ="WHAT in";
+                        goto process_config_line_err;
+                /*esac*/
+        } /* switch (i) */
 
         xregcomp( &new->preg, name, REG_EXTENDED);
 
@@ -654,7 +767,11 @@ static void process_config_line (const char *line, unsigned long *event_mask)
         last_config = new;
         return;
 process_config_line_err:
+#ifdef CONFIG_DEVFSD_VERBOSE
         msg_logger( DIE, LOG_ERR, bb_msg_bad_config, msg , line);
+#else
+        exit(EXIT_FAILURE);
+#endif
 }  /*  End Function process_config_line   */
 
 static int do_servicing (int fd, unsigned long event_mask)
@@ -668,7 +785,7 @@ static int do_servicing (int fd, unsigned long event_mask)
         struct devfsd_notify_struct info;
         unsigned long tmp_event_mask;
 
-#ifdef CONFIG_DEVFSD_DEBUG
+#ifdef CONFIG_DEBUG
         msg_logger( NO_DIE, LOG_INFO, "do_servicing()\n");
 #endif
         /*  Tell devfs what events we care about  */
@@ -698,7 +815,7 @@ static int do_servicing (int fd, unsigned long event_mask)
         msg_logger( NO_DIE, LOG_ERR, "read error on control file: %m\n");
 #endif
         /* This is to shut up a compiler warning */
-        exit(1);
+        exit(EXIT_FAILURE);
 }   /*  End Function do_servicing  */
 
 static void service_name (const struct devfsd_notify_struct *info)
@@ -711,18 +828,19 @@ static void service_name (const struct devfsd_notify_struct *info)
         regmatch_t mbuf[MAX_SUBEXPR];
         struct config_entry_struct *entry;
 
-#ifdef CONFIG_DEVFSD_DEBUG
+#ifdef CONFIG_DEBUG
         msg_logger( NO_DIE, LOG_INFO, "service_name()\n");
-#endif
-#ifdef CONFIG_DEVFSD_VERBOSE
         if (info->overrun_count > 0)
                 msg_logger( NO_DIE, LOG_ERR, "lost %u events\n", info->overrun_count);
 #endif
 
         /*  Discard lookups on "/dev/log" and "/dev/initctl"  */
-        if      (info->type == DEVFSD_NOTIFY_LOOKUP &&
-                (( (strcmp (info->devname, "log") == 0) ||
-                (strcmp (info->devname, "initctl") == 0))))
+        if(   info->type == DEVFSD_NOTIFY_LOOKUP &&
+                ((info->devname[0]=='l' && info->devname[1]=='o' &&
+                  info->devname[2]=='g' && !info->devname[3]) &&
+                ( info->devname[0]=='i' && info->devname[1]=='n' &&
+                  info->devname[2]=='i' && info->devname[3]=='c' &&
+                  info->devname[4]=='t' && info->devname[5]=='l' && !info->devname[6])))
                         return;
         for (entry = first_config; entry != NULL; entry = entry->next)
         {
@@ -731,51 +849,40 @@ static void service_name (const struct devfsd_notify_struct *info)
                         continue;
                 for (n = 0; (n < MAX_SUBEXPR) && (mbuf[n].rm_so != -1); ++n)
                         /* VOID */;
+#ifdef CONFIG_DEBUG
+                msg_logger( NO_DIE, LOG_INFO, "service_name(): action.what %d\n", entry->action.what);
+#endif
                 switch (entry->action.what)
                 {
                         case AC_PERMISSIONS:
-#ifdef CONFIG_DEVFSD_DEBUG
-                                msg_logger( NO_DIE, LOG_INFO, "AC_PERMISSIONS\n");
-#endif
                                 action_permissions (info, entry);
                                 break;
 #ifdef CONFIG_DEVFSD_MODLOAD
                         case AC_MODLOAD:
-                                #ifdef CONFIG_DEVFSD_DEBUG
-                                msg_logger( NO_DIE, LOG_INFO, "AC_MODLOAD\n");
-                                #endif
                                 action_modload (info, entry);
                                 break;
 #endif
                         case AC_EXECUTE:
-#ifdef CONFIG_DEVFSD_DEBUG
-                                msg_logger( NO_DIE, LOG_INFO, "AC_EXECUTE\n");
-#endif
                                 action_execute (info, entry, mbuf, n);
                                 break;
                         case AC_COPY:
-#ifdef CONFIG_DEVFSD_DEBUG
-                                msg_logger( NO_DIE, LOG_INFO, "AC_COPY\n");
-#endif
                                 action_copy (info, entry, mbuf, n);
                                 break;
                         case AC_IGNORE:
-#ifdef CONFIG_DEVFSD_DEBUG
-                                msg_logger( NO_DIE, LOG_INFO, "AC_IGNORE\n");
-#endif
                                 return;
                                 /*break;*/
                         case AC_MKOLDCOMPAT:
                         case AC_MKNEWCOMPAT:
                         case AC_RMOLDCOMPAT:
                         case AC_RMNEWCOMPAT:
-#ifdef CONFIG_DEVFSD_DEBUG
-                                msg_logger( NO_DIE, LOG_INFO, "AC_COMPAT\n");
-#endif
                                 action_compat (info, entry->action.what);
                                 break;
                         default:
+#ifdef CONFIG_DEVFSD_VERBOSE
                                 msg_logger( DIE, LOG_ERR, "Unknown action\n");
+#else
+                                exit(EXIT_FAILURE);
+#endif
                                 /*break;*/
                 }
         }
@@ -791,7 +898,7 @@ static void action_permissions (const struct devfsd_notify_struct *info,
 {
         struct stat statbuf;
 
-#ifdef CONFIG_DEVFSD_DEBUG
+#ifdef CONFIG_DEBUG
         msg_logger( NO_DIE, LOG_INFO, "action_permission()\n");
 #endif
 
@@ -820,15 +927,16 @@ static void action_modload (const struct devfsd_notify_struct *info,
         char device[STRING_LENGTH];
 
         argv[0] = MODPROBE;
-        argv[1] = "-k";
-        argv[2] = "-C";
+        argv[1] = MODPROBE_SWITCH_1; /* "-k" */
+        argv[2] = MODPROBE_SWITCH_2; /* "-C" */
         argv[3] = CONFIG_MODULES_DEVFS;
         argv[4] = device;
         argv[5] = NULL;
-        #ifdef CONFIG_DEVFSD_DEBUG
-        msg_logger( NO_DIE, LOG_INFO, "action_modload()\n");
-        #endif
+
         snprintf (device, sizeof (device), "/dev/%s", info->devname);
+        #ifdef CONFIG_DEBUG
+        msg_logger( NO_DIE, LOG_INFO, "action_modload():%s %s %s %s %s\n",argv[0],argv[1],argv[2],argv[3],argv[4]);
+        #endif
         fork_and_execute(DIE, argv[0], argv);
 }  /*  End Function action_modload  */
 #endif
@@ -850,11 +958,9 @@ static void action_execute (const struct devfsd_notify_struct *info,
         char *argv[MAX_ARGS + 1];
         char largv[MAX_ARGS + 1][STRING_LENGTH];
 
-#ifdef CONFIG_DEVFSD_DEBUG
+#ifdef CONFIG_DEBUG
         int i;
-        char buff[1024];
-
-        msg_logger( NO_DIE, LOG_INFO, "action_execute()\n");
+        char buff[512];
 #endif
 
         gv_info.info = info;
@@ -870,12 +976,12 @@ static void action_execute (const struct devfsd_notify_struct *info,
         }
         argv[count] = NULL;
 
-#ifdef CONFIG_DEVFSD_DEBUG
+#ifdef CONFIG_DEBUG
         buff[0]='\0';
         for(i=0;argv[i]!=NULL;i++) /* argv[i] < MAX_ARGS + 1 */
         {
                 strcat(buff," ");
-                if( (strlen(buff)+ 1 + strlen(argv[i])) >= 1024)
+                if( (strlen(buff)+ 1 + strlen(argv[i])) >= 512)
                         break;
                 strcat(buff,argv[i]);
         }
@@ -905,7 +1011,7 @@ static void action_copy (const struct devfsd_notify_struct *info,
         char source[STRING_LENGTH], destination[STRING_LENGTH];
         dest_stat.st_mode = 0;
 
-#ifdef CONFIG_DEVFSD_DEBUG
+#ifdef CONFIG_DEBUG
         msg_logger( NO_DIE, LOG_INFO, "action_copy()\n");
 #endif
 
@@ -913,8 +1019,8 @@ static void action_copy (const struct devfsd_notify_struct *info,
                 return;
         gv_info.info = info;
         gv_info.devname = info->devname;
-        snprintf (gv_info.devpath, sizeof (gv_info.devpath), "%s/%s", mount_point, info->devname);
 
+        snprintf (gv_info.devpath, sizeof (gv_info.devpath), "%s/%s", mount_point, info->devname);
         expand_expression (source, STRING_LENGTH, entry->u.copy.source,
                                 get_variable, &gv_info, gv_info.devname,
                                 regexpr, numexpr);
@@ -931,8 +1037,8 @@ static void action_copy (const struct devfsd_notify_struct *info,
                 new_mode |= S_ISVTX;
         else if ( (info->type == DEVFSD_NOTIFY_CHANGE) && (dest_stat.st_mode & S_ISVTX) )
                 new_mode |= S_ISVTX;
-#ifdef CONFIG_DEVFSD_VERBOSE
-        if ( !copy_inode (destination, &dest_stat, new_mode, source, &source_stat) )
+#ifdef CONFIG_DEBUG
+        if ( !copy_inode (destination, &dest_stat, new_mode, source, &source_stat) && (errno != EEXIST))
                 msg_logger( NO_DIE, LOG_ERR, "copy_inode(): %s to %s: %m\n", source, destination);
 #else
         copy_inode (destination, &dest_stat, new_mode, source, &source_stat);
@@ -940,8 +1046,7 @@ static void action_copy (const struct devfsd_notify_struct *info,
         return;
 }   /*  End Function action_copy  */
 
-static void action_compat (const struct devfsd_notify_struct *info,
-                           unsigned int action)
+static void action_compat (const struct devfsd_notify_struct *info, unsigned int action)
 /*  [SUMMARY] Process a compatibility request.
     <info> The devfs change.
     <action> The action to take.
@@ -950,12 +1055,23 @@ static void action_compat (const struct devfsd_notify_struct *info,
 {
         const char *compat_name = NULL;
         const char *dest_name = info->devname;
-        char *ptr;
+        char *ptr=NULL;
         char compat_buf[STRING_LENGTH], dest_buf[STRING_LENGTH];
-
-#ifdef CONFIG_DEVFSD_DEBUG
-        msg_logger( NO_DIE, LOG_INFO, "action_compat()\n");
-#endif
+        int mode, host, bus, target, lun;
+        unsigned int i;
+        char rewind_;
+        /* 1 to 5  "scsi/" , 6 to 9 "ide/host" */
+        const char *fmt[] = {   NULL ,
+                                                        "sg/c%db%dt%du%d",                      /* scsi/generic */
+                                                        "sd/c%db%dt%du%d",                      /* scsi/disc */
+                                                        "sr/c%db%dt%du%d",                      /* scsi/cd */
+                                                        "sd/c%db%dt%du%dp%d",           /* scsi/part */
+                                                        "st/c%db%dt%du%dm%d%c",         /* scsi/mt */
+                                                        "ide/hd/c%db%dt%du%d",          /* ide/host/disc */
+                                                        "ide/cd/c%db%dt%du%d",          /* ide/host/cd */
+                                                        "ide/hd/c%db%dt%du%dp%d",       /* ide/host/part */
+                                                        "ide/mt/c%db%dt%du%d%s",        /* ide/host/mt */
+                                                        NULL };
 
         /*  First construct compatibility name  */
         switch (action)
@@ -966,80 +1082,58 @@ static void action_compat (const struct devfsd_notify_struct *info,
                         break;
                 case AC_MKNEWCOMPAT:
                 case AC_RMNEWCOMPAT:
-                if (strncmp (info->devname, "scsi/", 5) == 0)
-                {
-                        int mode, host, bus, target, lun;
+                        ptr = strrchr (info->devname, '/') + 1;
+                        i=scan_dev_name(info->devname, info->namelen, ptr);
 
-                        sscanf (info->devname + 5, "host%d/bus%d/target%d/lun%d/",
-                                &host, &bus, &target, &lun);
-                        compat_name = compat_buf;
-                        snprintf (dest_buf, sizeof (dest_buf), "../%s", info->devname);
+#ifdef CONFIG_DEBUG
+                        msg_logger( NO_DIE, LOG_INFO, "action_compat(): scan_dev_name() returned %d\n", i);
+#endif
+
+                        /* nothing found */
+                        if(i==0 || i > 9)
+                                return;
+
+                        sscanf (info->devname +((i<6)?5:4), "host%d/bus%d/target%d/lun%d/", &host, &bus, &target, &lun);
+                        snprintf (dest_buf, sizeof (dest_buf), "../%s", info->devname + ((i>5)?4:0));
                         dest_name = dest_buf;
-                        if (strncmp (ptr = (strrchr (info->devname, '/') + 1), "mt", 2)== 0)
-                        {
-                                char rewind_ = info->devname[info->namelen - 1];
+                        compat_name = compat_buf;
 
+
+                        /* 1 == scsi/generic  2 == scsi/disc 3 == scsi/cd 6 == ide/host/disc 7 == ide/host/cd */
+                        if( i == 1 || i == 2 || i == 3 || i == 6 || i ==7 )
+                                sprintf ( compat_buf, fmt[i], host, bus, target, lun);
+
+                        /* 4 == scsi/part 8 == ide/host/part */
+                        if( i == 4 || i == 8)
+                                sprintf ( compat_buf, fmt[i], host, bus, target, lun, atoi (ptr + 4) );
+
+                        /* 5 == scsi/mt */
+                        if( i == 5)
+                        {
+                                rewind_ = info->devname[info->namelen - 1];
                                 if (rewind_ != 'n')
                                         rewind_ = '\0';
-
-                                switch (ptr[2])
-                                {
-                                        default:
-                                                mode = 0;
-                                                break;
-                                        case 'l':
-                                                mode = 1;
-                                                break;
-                                        case 'm':
-                                                mode = 2;
-                                                break;
-                                        case 'a':
-                                                mode = 3;
-                                                break;
-                                }
-                                sprintf (compat_buf, "st/c%db%dt%du%dm%d%c", host, bus, target, lun, mode, rewind_);
+                                mode=0;
+                                if(ptr[2] ==  'l' /*108*/ || ptr[2] == 'm'/*109*/)
+                                        mode = ptr[2] - 107; /* 1 or 2 */
+                                if(ptr[2] ==  'a')
+                                        mode = 3;
+                                sprintf (compat_buf, fmt [i], host, bus, target, lun, mode, rewind_);
                         }
-                        else if (strcmp (info->devname + info->namelen - 7,"generic") == 0)
-                                sprintf (compat_buf, "sg/c%db%dt%du%d",
-                                                host, bus, target, lun);
-                        else if (strcmp (info->devname + info->namelen - 2, "cd") == 0)
-                                sprintf (compat_buf, "sr/c%db%dt%du%d",
-                                                host, bus, target, lun);
-                        else if (strcmp (info->devname + info->namelen - 4, "disc") == 0)
-                                sprintf (compat_buf, "sd/c%db%dt%du%d",
-                                                host, bus, target, lun);
-                        else if (strncmp (ptr = (strrchr (info->devname, '/') + 1), "part", 4) == 0)
-                                sprintf ( compat_buf, "sd/c%db%dt%du%dp%d",
-                                                host, bus, target, lun, atoi (ptr + 4) );
-                        else compat_name = NULL;
-                }
-                else if (strncmp (info->devname, "ide/host", 8) == 0)
-                {
-                        int host, bus, target, lun;
 
-                        sscanf (info->devname + 4, "host%d/bus%d/target%d/lun%d/",
-                                &host, &bus, &target, &lun);
-                        compat_name = compat_buf;
-                        snprintf (dest_buf, sizeof (dest_buf), "../%s", info->devname + 4);
-                        dest_name = dest_buf;
-                        if (strcmp (info->devname + info->namelen - 4, "disc") == 0)
-                                sprintf (compat_buf, "ide/hd/c%db%dt%du%d",
-                                        host, bus, target, lun);
-                        else if (strncmp (ptr = (strrchr (info->devname, '/') + 1), "part", 4) == 0)
-                                sprintf ( compat_buf, "ide/hd/c%db%dt%du%dp%d",
-                                        host, bus, target, lun, atoi (ptr + 4) );
-                        else if (strcmp (info->devname + info->namelen - 2, "cd") == 0)
-                                sprintf (compat_buf, "ide/cd/c%db%dt%du%d",
-                                        host, bus, target,lun);
-                        else if (strncmp (ptr = (strrchr (info->devname, '/') + 1), "mt", 2) == 0)
-                                snprintf (compat_buf, sizeof (compat_buf), "ide/mt/c%db%dt%du%d%s",
-                                        host, bus, target, lun, ptr + 2);
-                        else compat_name = NULL;
-                }
-                break;
-        }
-        if (compat_name == NULL)
+                        /* 9 == ide/host/mt */
+                        if( i ==  9 )
+                                snprintf (compat_buf, sizeof (compat_buf), fmt[i], host, bus, target, lun, ptr + 2);
+                /* esac */
+        } /* switch(action) */
+
+        if(compat_name == NULL )
                 return;
+
+#ifdef CONFIG_DEBUG
+        msg_logger( NO_DIE, LOG_INFO, "action_compat(): %s\n", compat_name);
+#endif
+
         /*  Now decide what to do with it  */
         switch (action)
         {
@@ -1049,14 +1143,15 @@ static void action_compat (const struct devfsd_notify_struct *info,
                         break;
                 case AC_RMOLDCOMPAT:
                 case AC_RMNEWCOMPAT:
-#ifdef CONFIG_DEVFSD_VERBOSE
+#ifdef CONFIG_DEBUG
                         if (unlink (compat_name) != 0)
                                 msg_logger( NO_DIE, LOG_ERR, "unlink(): %s: %m\n", compat_name);
 #else
                         unlink (compat_name);
 #endif
                         break;
-        }
+                /*esac*/
+        } /* switch(action) */
 }   /*  End Function action_compat  */
 
 static void restore(char *spath, struct stat source_stat, int rootlen)
@@ -1064,7 +1159,7 @@ static void restore(char *spath, struct stat source_stat, int rootlen)
         char dpath[STRING_LENGTH];
         struct stat dest_stat;
 
-#ifdef CONFIG_DEVFSD_DEBUG
+#ifdef CONFIG_DEBUG
         msg_logger( NO_DIE, LOG_INFO, "restore()\n");
 #endif
 
@@ -1092,8 +1187,13 @@ static int copy_inode (const char *destpath, const struct stat *dest_stat,
     [RETURNS] TRUE on success, else FALSE.
 */
 {
+        int source_len, dest_len;
+        char source_link[STRING_LENGTH], dest_link[STRING_LENGTH];
+        int fd, val;
+        struct sockaddr_un un_addr;
+        char symlink_val[STRING_LENGTH];
 
-#ifdef CONFIG_DEVFSD_DEBUG
+#ifdef CONFIG_DEBUG
         msg_logger( NO_DIE, LOG_INFO, "copy_inode()\n");
 #endif
 
@@ -1102,10 +1202,6 @@ static int copy_inode (const char *destpath, const struct stat *dest_stat,
                 /*  Same type  */
                 if ( S_ISLNK (source_stat->st_mode) )
                 {
-                        int source_len, dest_len;
-                        char source_link[STRING_LENGTH], dest_link[STRING_LENGTH];
-
-
                         if (( source_len = readlink (sourcepath, source_link, STRING_LENGTH - 1) ) < 0 ||
                                 ( dest_len   = readlink (destpath  , dest_link  , STRING_LENGTH - 1) ) < 0 )
                                 return (FALSE);
@@ -1126,10 +1222,6 @@ static int copy_inode (const char *destpath, const struct stat *dest_stat,
         unlink (destpath);
         switch (source_stat->st_mode & S_IFMT)
         {
-                int fd, val;
-                struct sockaddr_un un_addr;
-                char symlink_val[STRING_LENGTH];
-
                 case S_IFSOCK:
                         if ( ( fd = socket (AF_UNIX, SOCK_STREAM, 0) ) < 0 )
                                 break;
@@ -1179,7 +1271,7 @@ static void free_config ()
         struct config_entry_struct *c_entry;
         void *next;
 
-#ifdef CONFIG_DEVFSD_DEBUG
+#ifdef CONFIG_DEBUG
         msg_logger( NO_DIE, LOG_INFO, "free_config()\n");
 #endif
 
@@ -1213,9 +1305,11 @@ static int get_uid_gid (int flag, const char *string)
 {
         struct passwd *pw_ent;
         struct group *grp_ent;
+#ifdef CONFIG_DEVFSD_VERBOSE
         char * msg="user";
+#endif
 
-#ifdef CONFIG_DEVFSD_DEBUG
+#ifdef CONFIG_DEBUG
         msg_logger( NO_DIE, LOG_INFO, "get_uid_gid()\n");
 
 
@@ -1231,10 +1325,12 @@ static int get_uid_gid (int flag, const char *string)
 
         if ( flag == GID && ( grp_ent = getgrnam (string) ) != NULL )
                 return (grp_ent->gr_gid);
+#ifdef CONFIG_DEVFSD_VERBOSE
         else
                 msg="group";
 
         msg_logger( NO_DIE, LOG_ERR,"unknown %s: %s, defaulting to %cID=0\n", msg, string, msg[0] - 32);
+#endif
         return (0);
 }/*  End Function get_uid_gid  */
 
@@ -1246,14 +1342,18 @@ static mode_t get_mode (const char *string)
 {
         mode_t mode;
         int i;
-#ifdef CONFIG_DEVFSD_DEBUG
+#ifdef CONFIG_DEBUG
         msg_logger( NO_DIE, LOG_INFO, "get_mode()\n");
 #endif
 
         if ( isdigit (string[0]) )
                 return strtoul (string, NULL, 8);
         if (strlen (string) != 9)
+#ifdef CONFIG_DEVFSD_VERBOSE
                 msg_logger( DIE, LOG_ERR, "bad mode: %s\n", string);
+#else
+                exit(EXIT_FAILURE);
+#endif
         mode = 0;
         i= S_IRUSR;
         while(i>0)
@@ -1268,7 +1368,7 @@ static mode_t get_mode (const char *string)
 
 static void signal_handler (int sig)
 {
-#ifdef CONFIG_DEVFSD_DEBUG
+#ifdef CONFIG_DEBUG
         msg_logger( NO_DIE, LOG_INFO, "signal_handler()\n");
 #endif
 
@@ -1284,48 +1384,53 @@ static const char *get_variable (const char *variable, void *info)
 {
         struct get_variable_info *gv_info = info;
         static char hostname[STRING_LENGTH], sbuf[STRING_LENGTH];
-
-#ifdef CONFIG_DEVFSD_DEBUG
+        const char *field_names[] = { "hostname", "mntpt", "devpath", "devname",
+                                                                   "uid", "gid", "mode", hostname, mount_point,
+                                                                   gv_info->devpath, gv_info->devname, 0 };
+        short int i;
+#ifdef CONFIG_DEBUG
         msg_logger( NO_DIE, LOG_INFO, "get_variable()\n");
 #endif
 
         if (gethostname (hostname, STRING_LENGTH - 1) != 0)
+#ifdef CONFIG_DEVFSD_VERBOSE
                 msg_logger( DIE, LOG_ERR, "gethostname(): %m\n");
+#else
+                exit(EXIT_FAILURE);
+#endif
                 /* Here on error we should do exit(RV_SYS_ERROR), instead we do exit(EXIT_FAILURE) */
-        hostname[STRING_LENGTH - 1] = '\0';
-        if (strcmp (variable, "hostname") == 0)
-                return (hostname);
-        if (strcmp (variable, "mntpnt") == 0)
-                return (mount_point);
-        if (gv_info == NULL)
-                return (NULL);
-        if (strcmp (variable, "devpath") == 0)
-                return (gv_info->devpath);
-        if (strcmp (variable, "devname") == 0)
-                return (gv_info->devname);
-        if (strcmp (variable, "mode") == 0)
+                hostname[STRING_LENGTH - 1] = '\0';
+
+        /* compare_string_array returns i>=0  */
+        i=compare_string_array(field_names, variable);
+
+        if ( i > 6 && (i > 1 && gv_info == NULL))
+                        return (NULL);
+        if( i >= 0 || i <= 3)
         {
-                sprintf (sbuf, "%o", gv_info->info->mode);
-                return (sbuf);
+#ifdef CONFIG_DEBUG
+                msg_logger( NO_DIE, LOG_INFO, "get_variable(): i=%d %s\n",i ,field_names[i+7]);
+#endif
+                return(field_names[i+7]);
         }
-        if (strcmp (variable, "uid") == 0)
-        {
+
+        if(i == 4 )
                 sprintf (sbuf, "%u", gv_info->info->uid);
-                return (sbuf);
-        }
-        if (strcmp (variable, "gid") == 0)
-        {
+        else if(i == 5)
                 sprintf (sbuf, "%u", gv_info->info->gid);
-                return (sbuf);
-        }
-        return (NULL);
+        else if(i == 6)
+                sprintf (sbuf, "%o", gv_info->info->mode);
+#ifdef CONFIG_DEBUG
+        msg_logger( NO_DIE, LOG_INFO, "get_variable(): %s\n", sbuf);
+#endif
+        return (sbuf);
 }   /*  End Function get_variable  */
 
 static void service(struct stat statbuf, char *path)
 {
         struct devfsd_notify_struct info;
 
-#ifdef CONFIG_DEVFSD_DEBUG
+#ifdef CONFIG_DEBUG
         msg_logger( NO_DIE, LOG_INFO, "service()\n");
 #endif
 
@@ -1358,26 +1463,31 @@ static void dir_operation(int type, const char * dir_name, int var, unsigned lon
         char path[STRING_LENGTH];
 
 
-#ifdef CONFIG_DEVFSD_DEBUG
+#ifdef CONFIG_DEBUG
         msg_logger( NO_DIE, LOG_INFO, "dir_operation()\n");
 #endif
 
         if((dp = opendir( dir_name))==NULL)
         {
+#ifdef CONFIG_DEBUG
                 msg_logger( NO_DIE, LOG_ERR, "opendir(): %s: %m\n", dir_name);
+#endif
                 return;
         }
 
         while ( (de = readdir (dp) ) != NULL )
         {
 
-                if ( (strcmp (de->d_name, ".") == 0)  || (strcmp (de->d_name, "..") == 0)  )
+                if(de->d_name && *de->d_name == '.' && (!de->d_name[1] || (de->d_name[1] == '.' && !de->d_name[2])))
                         continue;
-                snprintf (path, sizeof (path), "%s%s%s", dir_name,(last_char_is(dir_name,'/')==NULL)?"/":"", de->d_name);
+                snprintf (path, sizeof (path), "%s/%s", dir_name, de->d_name);
+#ifdef CONFIG_DEBUG
+                msg_logger( NO_DIE, LOG_ERR, "dir_operation(): %s\n", path);
+#endif
 
                 if (lstat (path, &statbuf) != 0)
                 {
-#ifdef CONFIG_DEVFSD_VERBOSE
+#ifdef CONFIG_DEBUG
                         msg_logger( NO_DIE, LOG_ERR, "%s: %m\n", path);
 #endif
                         continue;
@@ -1405,7 +1515,7 @@ static int mksymlink (const char *oldpath, const char *newpath)
     [RETURNS] 0 on success, else -1.
 */
 {
-#ifdef CONFIG_DEVFSD_DEBUG
+#ifdef CONFIG_DEBUG
         msg_logger( NO_DIE, LOG_INFO, "mksymlink()\n", newpath);
 #endif
 
@@ -1415,11 +1525,13 @@ static int mksymlink (const char *oldpath, const char *newpath)
 
         if (symlink (oldpath, newpath) != 0)
     {
-#ifdef CONFIG_DEVFSD_VERBOSE
-                msg_logger( NO_DIE, LOG_ERR, "symlink(): %s to %s: %m\n", oldpath, newpath);
-#endif
                 if (errno != EEXIST)
+                {
+#ifdef CONFIG_DEBUG
+                        msg_logger( NO_DIE, LOG_ERR, "mksymlink(): %s to %s: %m\n", oldpath, newpath);
+#endif
                         return (-1);
+                }
         }
     return (0);
 }   /*  End Function mksymlink  */
@@ -1431,12 +1543,12 @@ static int make_dir_tree (const char *path)
     [RETURNS] TRUE on success, else FALSE.
 */
 {
-#ifdef CONFIG_DEVFSD_DEBUG
+#ifdef CONFIG_DEBUG
         msg_logger( NO_DIE, LOG_INFO, "make_dir_tree()\n");
 #endif
         if (bb_make_directory( dirname((char *)path),  S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH ,FILEUTILS_RECUR )==-1)
         {
-#ifdef CONFIG_DEVFSD_VERBOSE
+#ifdef CONFIG_DEBUG
                 msg_logger( NO_DIE, LOG_ERR, "make_dir_tree(): %s: %m\n", path);
 #endif
                 return (FALSE);
@@ -1467,7 +1579,7 @@ static int expand_expression(char *output, unsigned int outsize,
 {
         char temp[STRING_LENGTH];
 
-#ifdef CONFIG_DEVFSD_DEBUG
+#ifdef CONFIG_DEBUG
         msg_logger( NO_DIE, LOG_INFO, "expand_expression()\n");
 #endif
 
@@ -1498,7 +1610,7 @@ static void expand_regexp (char *output, size_t outsize, const char *input,
         const char last_exp = '0' - 1 + numex;
         int c = -1;
 
-#ifdef CONFIG_DEVFSD_DEBUG
+#ifdef CONFIG_DEBUG
         msg_logger( NO_DIE, LOG_INFO, "expand_regexp()\n");
 #endif
 
@@ -1597,14 +1709,35 @@ const char *get_old_name (const char *devname, unsigned int namelen,
         const char *compat_name = NULL;
         char *ptr;
         struct translate_struct *trans;
-
-#ifdef CONFIG_DEVFSD_DEBUG
+        unsigned int i;
+        char mode;
+        int indexx;
+        const char *pty1;
+        const char *pty2;
+        size_t len;
+        /* 1 to 5  "scsi/" , 6 to 9 "ide/host", 10 sbp/, 11 vcc/, 12 pty/ */
+        const char *fmt[] = {   NULL ,
+                                                        "sg%u",                 /* scsi/generic */
+                                                        NULL,                   /* scsi/disc */
+                                                        "sr%u",                 /* scsi/cd */
+                                                        NULL,                   /* scsi/part */
+                                                        "nst%u%c",              /* scsi/mt */
+                                                        "hd%c"  ,               /* ide/host/disc */
+                                                        "hd%c"  ,               /* ide/host/cd */
+                                                        "hd%c%s",               /* ide/host/part */
+                                                        "%sht%d",               /* ide/host/mt */
+                                                        "sbpcd%u",              /* sbp/ */
+                                                        "vcs%s",                /* vcc/ */
+                                                        "%cty%c%c",             /* pty/ */
+                                                        NULL };
+
+#ifdef CONFIG_DEBUG
         msg_logger( NO_DIE, LOG_INFO, "get_old_name()\n");
 #endif
 
         for (trans = translate_table; trans->match != NULL; ++trans)
         {
-                size_t len = strlen (trans->match);
+                 len = strlen (trans->match);
 
                 if (strncmp (devname, trans->match, len) == 0)
                 {
@@ -1614,80 +1747,64 @@ const char *get_old_name (const char *devname, unsigned int namelen,
                         return (buffer);
                 }
         }
-        if (strncmp (devname, "sbp/", 4) == 0)
-        {
-                sprintf (buffer, "sbpcd%u", minor);
+
+        ptr = (strrchr (devname, '/') + 1);
+        i = scan_dev_name(devname, namelen, ptr);
+
+        if( i > 0 && i < 13)
                 compat_name = buffer;
+        else
+                return NULL;
+
+#ifdef CONFIG_DEBUG
+        msg_logger( NO_DIE, LOG_INFO, "get_old_name(): scan_dev_name() returned %d\n", i);
+#endif
+
+        /* 1 == scsi/generic, 3 == scsi/cd, 10 == sbp/ */
+        if( i == 1 || i == 3 || i == 10 )
+                sprintf (buffer, fmt[i], minor);
+
+        /* 2 ==scsi/disc, 4 == scsi/part */
+        if( i == 2 || i == 4)
+                compat_name = write_old_sd_name (buffer, major, minor,((i == 2)?"":(ptr + 4)));
+
+        /* 5 == scsi/mt */
+        if( i == 5)
+        {
+                mode = ptr[2];
+                if (mode == 'n')
+                        mode = '\0';
+                sprintf (buffer, fmt[i], minor & 0x1f, mode);
+                if (devname[namelen - 1] != 'n')
+                        ++compat_name;
         }
-        else if (strncmp (devname, "scsi/", 5) == 0)
-        {   /*  All SCSI devices  */
-                if (strcmp (devname + namelen - 7, "generic") == 0)
-                {
-                        sprintf (buffer, "sg%u", minor);
-                        compat_name = buffer;
-                }
-                else if (strncmp (ptr = (strrchr (devname, '/') + 1), "mt", 2) == 0)
-                {
-                        char mode = ptr[2];
-
-                        if (mode == 'n')
-                                mode = '\0';
-                        sprintf (buffer, "nst%u%c", minor & 0x1f, mode);
-                        compat_name = buffer;
-                        if (devname[namelen - 1] != 'n')
-                                ++compat_name;
-                }
-                else if (strcmp (devname + namelen - 2, "cd") == 0)
-                {
-                        sprintf (buffer, "sr%u", minor);
-                        compat_name = buffer;
-                }
-                else if (strcmp (devname + namelen - 4, "disc") == 0)
-                        compat_name = write_old_sd_name (buffer, major, minor, "");
-                else if (strncmp (ptr = (strrchr (devname, '/') + 1), "part", 4) == 0)
-                        compat_name = write_old_sd_name (buffer, major, minor, ptr + 4);
-                return (compat_name);
-        }
-        else if (strncmp (devname, "ide/host", 8) == 0)
-        {   /*  All IDE devices  */
-                if (strncmp (ptr = (strrchr (devname, '/') + 1), "mt", 2) == 0)
-                {
-                        sprintf (buffer, "%sht%d", ptr + 2, minor & 0x7f);
-                        compat_name = buffer;
-                }
-                else if (strcmp (devname + namelen - 4, "disc") == 0)
-                {
-                        sprintf ( buffer, "hd%c", get_old_ide_name (major, minor) );
-                        compat_name = buffer;
-                }
-                else if (strncmp (ptr = (strrchr (devname, '/') + 1), "part", 4) == 0)
-                {
-                        sprintf (buffer, "hd%c%s", get_old_ide_name (major, minor), ptr + 4);
-                        compat_name = buffer;
-                }
-                else if (strcmp (devname + namelen - 2, "cd") == 0)
-                {
-                        sprintf ( buffer, "hd%c", get_old_ide_name (major, minor) );
-                        compat_name = buffer;
-                }
-                return (compat_name);
-        }
-        else if (strncmp (devname, "vcc/", 4) == 0)
+        /* 6 == ide/host/disc, 7 == ide/host/cd, 8 == ide/host/part */
+        if( i == 6 || i == 7 || i == 8 )
+                sprintf (buffer, fmt[i] , get_old_ide_name (major, minor), ptr + 4);    /* last arg should be ignored for i == 6 or i== 7 */
+
+        /* 9 ==  ide/host/mt */
+        if( i == 9 )
+                sprintf (buffer, fmt[i], ptr + 2, minor & 0x7f);
+
+        /*  11 == vcc/ */
+        if( i == 11 )
         {
-                sprintf (buffer, "vcs%s", devname + 4);
+                sprintf (buffer, fmt[i], devname + 4);
                 if (buffer[3] == '0')
                         buffer[3] = '\0';
-                compat_name = buffer;
         }
-        else if (strncmp (devname, "pty/", 4) == 0)
+        /* 12 ==  pty/ */
+        if( i == 12 )
         {
-                int indexx = atoi (devname + 5);
-                const char *pty1 = "pqrstuvwxyzabcde";
-                const char *pty2 = "0123456789abcdef";
-
-                sprintf (buffer, "%cty%c%c", (devname[4] == 'm') ? 'p' : 't', pty1[indexx >> 4], pty2[indexx & 0x0f]);
-                compat_name = buffer;
+                pty1 = "pqrstuvwxyzabcde";
+                pty2 = "0123456789abcdef";
+                indexx = atoi (devname + 5);
+                sprintf (buffer, fmt[i], (devname[4] == 'm') ? 'p' : 't', pty1[indexx >> 4], pty2[indexx & 0x0f]);
         }
+#ifdef CONFIG_DEBUG
+        if(compat_name!=NULL)
+                msg_logger( NO_DIE, LOG_INFO, "get_old_name(): compat_name  %s\n", compat_name);
+#endif
         return (compat_name);
 }   /*  End Function get_old_name  */
 
@@ -1702,7 +1819,7 @@ static char get_old_ide_name (unsigned int major, unsigned int minor)
         char c='a';             /*  97 */
         int i=IDE0_MAJOR;
 
-#ifdef CONFIG_DEVFSD_DEBUG
+#ifdef CONFIG_DEBUG
         msg_logger( NO_DIE, LOG_INFO, "get_old_ide_name()\n");
 #endif
 
@@ -1741,7 +1858,7 @@ static char *write_old_sd_name (char *buffer,
 {
         unsigned int disc_index;
 
-#ifdef CONFIG_DEVFSD_DEBUG
+#ifdef CONFIG_DEBUG
         msg_logger( NO_DIE, LOG_INFO, "write_old_sd_name()\n");
 #endif
 
@@ -1790,7 +1907,7 @@ int st_expr_expand (char *output, unsigned int length, const char *input,
         struct passwd *pwent;
         char buffer[BUFFER_SIZE], tmp[STRING_LENGTH];
 
-#ifdef CONFIG_DEVFSD_DEBUG
+#ifdef CONFIG_DEBUG
         msg_logger( NO_DIE, LOG_INFO, "st_expr_expand()\n");
 #endif
 
@@ -1837,7 +1954,7 @@ int st_expr_expand (char *output, unsigned int length, const char *input,
                                 if ( ( pwent = getpwnam (tmp) ) == NULL )
                                 {
 #ifdef CONFIG_DEVFSD_VERBOSE
-                                        msg_logger( NO_DIE, LOG_INFO, "getpwnam(): %s\n", tmp);
+                                        msg_logger( NO_DIE, LOG_INFO, "no pwent for: %s\n", tmp);
 #endif
                                         return (FALSE);
                                 }
@@ -1897,7 +2014,7 @@ static const char *expand_variable (char *buffer, unsigned int length,
         const char *env, *ptr;
         char tmp[STRING_LENGTH];
 
-#ifdef CONFIG_DEVFSD_DEBUG
+#ifdef CONFIG_DEBUG
         msg_logger( NO_DIE, LOG_INFO, "expand_variable()\n");
 #endif
 
@@ -2049,7 +2166,7 @@ static const char *get_variable_v2 (const char *variable,
 {
         const char *value;
 
-#ifdef CONFIG_DEVFSD_DEBUG
+#ifdef CONFIG_DEBUG
                 msg_logger( NO_DIE, LOG_INFO, "get_variable_v2()\n");
 #endif