Remove trailing whitespace. Update copyright to include 2004.

git-svn-id: svn://busybox.net/trunk/busybox@8630 69ca8d6d-28ef-0310-b511-8ec308f3f277

7 files changed, 90 insertions, 90 deletions

diff --git a/shell/Config.in b/shell/Config.in
index 892b96e78..bcb5e719b 100644
--- a/shell/Config.in
+++ b/shell/Config.in
@@ -41,7 +41,7 @@ config CONFIG_ASH
           the most complete and most pedantically correct shell included with
           busybox.  This shell is actually a derivative of the Debian 'dash'
           shell (by Herbert Xu), which was created by porting the 'ash' shell
-          (written by Kenneth Almquist) from NetBSD.  
+          (written by Kenneth Almquist) from NetBSD.
 
 comment "Ash Shell Options"
         depends on CONFIG_ASH
diff --git a/shell/Makefile b/shell/Makefile
index a08219262..8f476c19e 100644
--- a/shell/Makefile
+++ b/shell/Makefile
@@ -1,6 +1,6 @@
 # Makefile for busybox
 #
-# Copyright (C) 1999-2003 by Erik Andersen <andersen@codepoet.org>
+# Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/shell/Makefile.in b/shell/Makefile.in
index c5be7ba79..7b9f41ed4 100644
--- a/shell/Makefile.in
+++ b/shell/Makefile.in
@@ -1,6 +1,6 @@
 # Makefile for busybox
 #
-# Copyright (C) 1999-2003 by Erik Andersen <andersen@codepoet.org>
+# Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/shell/ash.c b/shell/ash.c
index 8c2493ece..060860c07 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -7615,7 +7615,7 @@ cmdputs(const char *s)
         int quoted = 0;
         static const char *const vstype[16] = {
                 nullstr, "}", "-", "+", "?", "=",
-                "%", "%%", "#", "##", nullstr 
+                "%", "%%", "#", "##", nullstr
         };
 
         nextc = makestrspace((strlen(s) + 1) * 8, cmdnextc);
diff --git a/shell/hush.c b/shell/hush.c
index 84818ffa3..5da975746 100644
--- a/shell/hush.c
+++ b/shell/hush.c
@@ -12,7 +12,7 @@
  *      written Dec 2000 and Jan 2001 by Larry Doolittle.  The
  *      execution engine, the builtins, and much of the underlying
  *      support has been adapted from busybox-0.49pre's lash, which is
- *      Copyright (C) 1999-2003 by Erik Andersen <andersen@codepoet.org>
+ *      Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
  *      written by Erik Andersen <andersen@codepoet.org>.  That, in turn,
  *      is based in part on ladsh.c, by Michael K. Johnson and Erik W.
  *      Troan, which they placed in the public domain.  I don't know
@@ -197,7 +197,7 @@ struct redir_struct {
         redir_type type;                        /* type of redirection */
         int fd;                                         /* file descriptor being redirected */
         int dup;                                        /* -1, or file descriptor being duplicated */
-        struct redir_struct *next;      /* pointer to the next redirect in the list */ 
+        struct redir_struct *next;      /* pointer to the next redirect in the list */
         glob_t word;                            /* *word.gl_pathv is the filename */
 };
 
@@ -248,7 +248,7 @@ char **global_argv;
 unsigned int global_argc;
 unsigned int last_return_code;
 extern char **environ; /* This is in <unistd.h>, but protected with __USE_GNU */
- 
+
 /* "globals" within this file */
 static char *ifs;
 static char map[256];
@@ -421,7 +421,7 @@ static struct built_in_command bltins[] = {
         {"continue", "Continue for, while or until loop", builtin_not_written},
         {"env", "Print all environment variables", builtin_env},
         {"eval", "Construct and run shell command", builtin_eval},
-        {"exec", "Exec command, replacing this shell with the exec'd process", 
+        {"exec", "Exec command, replacing this shell with the exec'd process",
                 builtin_exec},
         {"exit", "Exit from shell()", builtin_exit},
         {"export", "Set environment variable", builtin_export},
@@ -456,10 +456,10 @@ static int builtin_eval(struct child_prog *child)
 {
         char *str = NULL;
         int rcode = EXIT_SUCCESS;
-        
+
         if (child->argv[1]) {
                 str = make_string(child->argv + 1);
-                parse_string_outer(str, FLAG_EXIT_FROM_LOOP | 
+                parse_string_outer(str, FLAG_EXIT_FROM_LOOP |
                                         FLAG_PARSE_SEMICOLON);
                 free(str);
                 rcode = last_return_code;
@@ -873,7 +873,7 @@ static inline void cmdedit_set_initial_prompt(void)
         PS1 = getenv("PS1");
         if(PS1==0)
                 PS1 = "\\w \\$ ";
-#endif  
+#endif
 }
 
 static inline void setup_prompt_string(int promptmode, char **prompt_str)
@@ -919,7 +919,7 @@ static void get_user_input(struct in_str *i)
         i->p = the_command;
 }
 
-/* This is the magic location that prints prompts 
+/* This is the magic location that prints prompts
  * and gets data back from the user */
 static int file_get(struct in_str *i)
 {
@@ -1110,14 +1110,14 @@ static void pseudo_exec(struct child_prog *child)
                 }
 
                 /* Check if the command matches any busybox internal commands
-                 * ("applets") here.  
+                 * ("applets") here.
                  * FIXME: This feature is not 100% safe, since
                  * BusyBox is not fully reentrant, so we have no guarantee the things
                  * from the .bss are still zeroed, or that things from .data are still
                  * at their defaults.  We could exec ourself from /proc/self/exe, but I
                  * really dislike relying on /proc for things.  We could exec ourself
                  * from global_argv[0], but if we are in a chroot, we may not be able
-                 * to find ourself... */ 
+                 * to find ourself... */
 #ifdef CONFIG_FEATURE_SH_STANDALONE_SHELL
                 {
                         int argc_l;
@@ -1196,7 +1196,7 @@ static void insert_bg_job(struct pipe *pi)
                 }
         }
 
-        /* we don't wait for background thejobs to return -- append it 
+        /* we don't wait for background thejobs to return -- append it
            to the list of backgrounded thejobs and leave it alone */
         printf("[%d] %d\n", thejob->jobid, thejob->progs[0].pid);
         last_bg_pid = thejob->progs[0].pid;
@@ -1226,7 +1226,7 @@ static void remove_bg_job(struct pipe *pi)
         free(pi);
 }
 
-/* Checks to see if any processes have exited -- if they 
+/* Checks to see if any processes have exited -- if they
    have, figure out why and see if a job has completed */
 static int checkjobs(struct pipe* fg_pipe)
 {
@@ -1246,7 +1246,7 @@ static int checkjobs(struct pipe* fg_pipe)
                         int i, rcode = 0;
                         for (i=0; i < fg_pipe->num_progs; i++) {
                                 if (fg_pipe->progs[i].pid == childpid) {
-                                        if (i==fg_pipe->num_progs-1) 
+                                        if (i==fg_pipe->num_progs-1)
                                                 rcode=WEXITSTATUS(status);
                                         (fg_pipe->num_progs)--;
                                         return(rcode);
@@ -1289,7 +1289,7 @@ static int checkjobs(struct pipe* fg_pipe)
                         if (pi->stopped_progs == pi->num_progs) {
                                 printf("\n"JOB_STATUS_FORMAT, pi->jobid, "Stopped", pi->text);
                         }
-#endif  
+#endif
                 }
         }
 
@@ -1378,7 +1378,7 @@ static int run_pipe_real(struct pipe *pi)
                                 /* Ok, this case is tricky.  We have to decide if this is a
                                  * local variable, or an already exported variable.  If it is
                                  * already exported, we have to export the new value.  If it is
-                                 * not exported, we need only set this as a local variable. 
+                                 * not exported, we need only set this as a local variable.
                                  * This junk is all to decide whether or not to export this
                                  * variable. */
                                 int export_me=0;
@@ -1408,7 +1408,7 @@ static int run_pipe_real(struct pipe *pi)
                 }
                 if (child->sp) {
                         char * str = NULL;
-                        
+
                         str = make_string((child->argv + i));
                         parse_string_outer(str, FLAG_EXIT_FROM_LOOP | FLAG_REPARSING);
                         free(str);
@@ -1454,7 +1454,7 @@ static int run_pipe_real(struct pipe *pi)
 #if !defined(__UCLIBC__) || defined(__UCLIBC_HAS_MMU__)
                 if (!(child->pid = fork()))
 #else
-                if (!(child->pid = vfork())) 
+                if (!(child->pid = vfork()))
 #endif
                 {
                         /* Set the handling for job control signals back to the default.  */
@@ -1465,7 +1465,7 @@ static int run_pipe_real(struct pipe *pi)
                         signal(SIGTTIN, SIG_DFL);
                         signal(SIGTTOU, SIG_DFL);
                         signal(SIGCHLD, SIG_DFL);
-                        
+
                         close_all();
 
                         if (nextin != 0) {
@@ -1497,7 +1497,7 @@ static int run_pipe_real(struct pipe *pi)
 
                         pseudo_exec(child);
                 }
-                
+
 
                 /* put our child in the process group whose leader is the
                    first process in this pipe */
@@ -1513,7 +1513,7 @@ static int run_pipe_real(struct pipe *pi)
                 if (nextout != 1)
                         close(nextout);
 
-                /* If there isn't another process, nextin is garbage 
+                /* If there isn't another process, nextin is garbage
                    but it doesn't matter */
                 nextin = pipefds[0];
         }
@@ -1539,12 +1539,12 @@ static int run_list_real(struct pipe *pi)
                     (rpipe->next == NULL)) {
                                 syntax();
                                 return 1;
-                }               
-                if ((rpipe->r_mode == RES_IN && 
-                        (rpipe->next->r_mode == RES_IN && 
+                }
+                if ((rpipe->r_mode == RES_IN &&
+                        (rpipe->next->r_mode == RES_IN &&
                         rpipe->next->progs->argv != NULL))||
                         (rpipe->r_mode == RES_FOR &&
-                        rpipe->next->r_mode != RES_IN)) { 
+                        rpipe->next->r_mode != RES_IN)) {
                                 syntax();
                                 return 1;
                 }
@@ -1572,7 +1572,7 @@ static int run_list_real(struct pipe *pi)
                 if (rmode == RES_ELIF && !if_code) continue;
                 if (rmode == RES_FOR && pi->num_progs) {
                         if (!list) {
-                                /* if no variable values after "in" we skip "for" */            
+                                /* if no variable values after "in" we skip "for" */
                                 if (!pi->next->progs->argv) continue;
                                 /* create list of variable values */
                                 list = make_list_in(pi->next->progs->argv,
@@ -1581,7 +1581,7 @@ static int run_list_real(struct pipe *pi)
                                 save_name = pi->progs->argv[0];
                                 pi->progs->argv[0] = NULL;
                                 flag_rep = 1;
-                        }       
+                        }
                         if (!(*list)) {
                                 free(pi->progs->argv[0]);
                                 free(save_list);
@@ -1591,26 +1591,26 @@ static int run_list_real(struct pipe *pi)
                                 pi->progs->glob_result.gl_pathv[0] =
                                         pi->progs->argv[0];
                                 continue;
-                        } else {                        
+                        } else {
                                 /* insert new value from list for variable */
-                                if (pi->progs->argv[0]) 
+                                if (pi->progs->argv[0])
                                         free(pi->progs->argv[0]);
                                 pi->progs->argv[0] = *list++;
                                 pi->progs->glob_result.gl_pathv[0] =
                                         pi->progs->argv[0];
                         }
-                }               
+                }
                 if (rmode == RES_IN) continue;
                 if (rmode == RES_DO) {
                         if (!flag_rep) continue;
-                }           
+                }       
                 if ((rmode == RES_DONE)) {
                         if (flag_rep) {
                                 flag_restore = 1;
                         } else {
                                 rpipe = NULL;
                         }
-                }               
+                }
                 if (pi->num_progs == 0) continue;
                 save_num_progs = pi->num_progs; /* save number of programs */
                 rcode = run_pipe_real(pi);
@@ -1642,9 +1642,9 @@ static int run_list_real(struct pipe *pi)
                 pi->num_progs = save_num_progs; /* restore number of programs */
                 if ( rmode == RES_IF || rmode == RES_ELIF )
                         next_if_code=rcode;  /* can be overwritten a number of times */
-                if (rmode == RES_WHILE) 
+                if (rmode == RES_WHILE)
                         flag_rep = !last_return_code;
-                if (rmode == RES_UNTIL) 
+                if (rmode == RES_UNTIL)
                         flag_rep = last_return_code;
                 if ( (rcode==EXIT_SUCCESS && pi->followup==PIPE_OR) ||
                      (rcode!=EXIT_SUCCESS && pi->followup==PIPE_AND) )
@@ -1723,7 +1723,7 @@ static int free_pipe_list(struct pipe *head, int indent)
                 pi->next=NULL;
                 free(pi);
         }
-        return rcode;   
+        return rcode;
 }
 
 /* Select which version we will use */
@@ -1732,7 +1732,7 @@ static int run_list(struct pipe *pi)
         int rcode=0;
         if (fake_mode==0) {
                 rcode = run_list_real(pi);
-        } 
+        }
         /* free_pipe_list has the side effect of clearing memory
          * In the long run that function can be merged with run_list_real,
          * but doing that now would hobble the debugging effort. */
@@ -1862,7 +1862,7 @@ static int set_local_var(const char *s, int flg_export)
 
         /* Assume when we enter this function that we are already in
          * NAME=VALUE format.  So the first order of business is to
-         * split 's' on the '=' into 'name' and 'value' */ 
+         * split 's' on the '=' into 'name' and 'value' */
         value = strchr(name, '=');
         if (value==0 && ++value==0) {
                 free(name);
@@ -1991,7 +1991,7 @@ static int setup_redirect(struct p_context *ctx, int fd, redir_type style,
 
         debug_printf("Redirect type %d%s\n", redir->fd, redir_table[style].descrip);
 
-        /* Check for a '2>&1' type redirect */ 
+        /* Check for a '2>&1' type redirect */
         redir->dup = redirect_dup_num(input);
         if (redir->dup == -2) return 1;  /* syntax error */
         if (redir->dup != -1) {
@@ -2377,9 +2377,9 @@ static int parse_group(o_string *dest, struct p_context *ctx,
 static char *lookup_param(char *src)
 {
         char *p=NULL;
-        if (src) { 
+        if (src) {
                 p = getenv(src);
-                if (!p) 
+                if (!p)
                         p = get_local_var(src);
         }
         return p;
@@ -2499,7 +2499,7 @@ int parse_stream(o_string *dest, struct p_context *ctx,
                         if (m==2) {  /* unquoted IFS */
                                 if (done_word(dest, ctx)) {
                                         return 1;
-                                }       
+                                }
                                 /* If we aren't performing a substitution, treat a newline as a
                                  * command separator.  */
                                 if (end_trigger != '\0' && ch=='\n')
@@ -2624,7 +2624,7 @@ int parse_stream(o_string *dest, struct p_context *ctx,
         }
         /* complain if quote?  No, maybe we just finished a command substitution
          * that was quoted.  Example:
-         * $ echo "`cat foo` plus more" 
+         * $ echo "`cat foo` plus more"
          * and we just got the EOF generated by the subshell that ran "cat foo"
          * The only real complaint is if we got an EOF when end_trigger != '\0',
          * that is, we were really supposed to get end_trigger, and never got
@@ -2684,7 +2684,7 @@ int parse_stream_outer(struct in_str *inp, int flag)
                         if (ctx.old_flag != 0) {
                                 free(ctx.stack);
                                 b_reset(&temp);
-                        }       
+                        }
                         temp.nonnull = 0;
                         temp.quote = 0;
                         inp->p = NULL;
@@ -2748,9 +2748,9 @@ int hush_main(int argc, char **argv)
         /* XXX what should these be while sourcing /etc/profile? */
         global_argc = argc;
         global_argv = argv;
-        
+
         /* (re?) initialize globals.  Sometimes hush_main() ends up calling
-         * hush_main(), therefore we cannot rely on the BSS to zero out this 
+         * hush_main(), therefore we cannot rely on the BSS to zero out this
          * stuff.  Reset these to 0 every time. */
         ifs = NULL;
         /* map[] is taken care of with call to update_ifs_map() */
@@ -2770,7 +2770,7 @@ int hush_main(int argc, char **argv)
 #endif
         PS2 = "> ";
 
-        /* initialize our shell local variables with the values 
+        /* initialize our shell local variables with the values
          * currently living in the environment */
         if (e) {
                 for (; *e; e++)
@@ -2790,7 +2790,7 @@ int hush_main(int argc, char **argv)
                 }
         }
         input=stdin;
-        
+
         while ((opt = getopt(argc, argv, "c:xif")) > 0) {
                 switch (opt) {
                         case 'c':
@@ -2832,13 +2832,13 @@ int hush_main(int argc, char **argv)
         debug_printf("\ninteractive=%d\n", interactive);
         if (interactive) {
                 /* Looks like they want an interactive shell */
-#ifndef CONFIG_FEATURE_SH_EXTRA_QUIET 
+#ifndef CONFIG_FEATURE_SH_EXTRA_QUIET
                 printf( "\n\n" BB_BANNER " hush - the humble shell v0.01 (testing)\n");
                 printf( "Enter 'help' for a list of built-in commands.\n\n");
 #endif
                 setup_job_control();
         }
-        
+
         if (argv[optind]==NULL) {
                 opt=parse_file_outer(stdin);
                 goto final_return;
@@ -2877,7 +2877,7 @@ static char *insert_var_value(char *inp)
         int len;
         int done = 0;
         char *p, *p1, *res_str = NULL;
-        
+
         while ((p = strchr(inp, SPECIAL_VAR_SYMBOL))) {
                 if (p != inp) {
                         len = p - inp;
@@ -2893,7 +2893,7 @@ static char *insert_var_value(char *inp)
                         res_str = xrealloc(res_str, (1 + len));
                         strcpy((res_str + res_str_len), p1);
                         res_str_len = len;
-                } 
+                }
                 *p = SPECIAL_VAR_SYMBOL;
                 inp = ++p;
                 done = 1;
@@ -2915,8 +2915,8 @@ static char **make_list_in(char **inp, char *name)
         int n = 0;
         char **list;
         char *p1, *p2, *p3;
-        
-        /* create list of variable values */    
+
+        /* create list of variable values */
         list = xmalloc(sizeof(*list));
         for (i = 0; inp[i]; i++) {
                 p3 = insert_var_value(inp[i]);
@@ -2928,13 +2928,13 @@ static char **make_list_in(char **inp, char *name)
                         }
                         if ((p2 = strchr(p1, ' '))) {
                                 len = p2 - p1;
-                        } else {        
+                        } else {
                                 len = strlen(p1);
                                 p2 = p1 + len;
                         }
-                        /* we use n + 2 in realloc for list,because we add 
+                        /* we use n + 2 in realloc for list,because we add
                          * new element and then we will add NULL element */
-                        list = xrealloc(list, sizeof(*list) * (n + 2));                 
+                        list = xrealloc(list, sizeof(*list) * (n + 2));
                         list[n] = xmalloc(2 + name_len + len);
                         strcpy(list[n], name);
                         strcat(list[n], "=");
@@ -2946,7 +2946,7 @@ static char **make_list_in(char **inp, char *name)
         }
         list[n] = NULL;
         return list;
-}       
+}
 
 /* Make new string for parser */
 static char * make_string(char ** inp)
diff --git a/shell/lash.c b/shell/lash.c
index e4b1b129f..d2d4298fb 100644
--- a/shell/lash.c
+++ b/shell/lash.c
@@ -2,7 +2,7 @@
 /*
  * lash -- the BusyBox Lame-Ass SHell
  *
- * Copyright (C) 1999-2003 by Erik Andersen <andersen@codepoet.org>
+ * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
  *
  * Based in part on ladsh.c by Michael K. Johnson and Erik W. Troan, which is
  * under the following liberal license: "We have placed this source code in the
@@ -927,7 +927,7 @@ static int expand_arguments(char *command)
 
                 }
                 if (var) {
-                        /* a single character construction was found, and 
+                        /* a single character construction was found, and
                          * already handled in the case statement */
                         src=dst+2;
                 } else {
@@ -1093,7 +1093,7 @@ static int parse_command(char **command_ptr, struct job *job, int *inbg)
 
                                 prog->redirects[i].fd = -1;
                                 if (buf != prog->argv[argc_l]) {
-                                        /* the stuff before this character may be the file number 
+                                        /* the stuff before this character may be the file number
                                            being redirected */
                                         prog->redirects[i].fd =
                                                 strtol(prog->argv[argc_l], &chptr, 10);
diff --git a/shell/msh.c b/shell/msh.c
index 31dd04f3e..e7059507a 100644
--- a/shell/msh.c
+++ b/shell/msh.c
@@ -23,7 +23,7 @@
  * You should have received a copy of the GNU General Public License
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- * 
+ *
  * Original copyright notice is retained at the end of this file.
  */
 
@@ -770,7 +770,7 @@ extern int msh_main(int argc, char **argv)
                                         if (--argc > 0)
                                                 PUSHIO(aword, *++argv, iof = nlchar);
                                         break;
-        
+
                                 case 'q':
                                         qflag = SIG_DFL;
                                         break;
@@ -784,7 +784,7 @@ extern int msh_main(int argc, char **argv)
                                         setval(prompt, "");
                                         iof = linechar;
                                         break;
-        
+
                                 case 'i':
                                         interactive++;
                                 default:
@@ -809,7 +809,7 @@ extern int msh_main(int argc, char **argv)
                 PUSHIO(afile, 0, iof);
                 if (isatty(0) && isatty(1) && !cflag) {
                         interactive++;
-#ifndef CONFIG_FEATURE_SH_EXTRA_QUIET 
+#ifndef CONFIG_FEATURE_SH_EXTRA_QUIET
                         printf( "\n\n" BB_BANNER " Built-in shell (msh)\n");
                         printf( "Enter 'help' for a list of built-in commands.\n\n");
 #endif
@@ -838,7 +838,7 @@ extern int msh_main(int argc, char **argv)
                                 ap++;
                         }
                 }
-        }       
+        }
         setval(lookup("#"), putn((--dolc < 0) ? (dolc = 0) : dolc));
 
         for (;;) {
@@ -2303,7 +2303,7 @@ int act;
 #if __GNUC__
         /* Avoid longjmp clobbering */
         (void) &wp;
-#endif  
+#endif
 
 
         if (t == NULL)
@@ -2318,7 +2318,7 @@ int act;
         case TPAREN:
                 rv = execute(t->left, pin, pout, 0);
                 break;
-                        
+
         case TCOM:
                 {
                         int child;
@@ -2395,7 +2395,7 @@ int act;
                 } else {
                         i = -1;
                         while (*wp++ != NULL)
-                                ;                       
+                                ;
                 }
                 vp = lookup(t->str);
                 while (setjmp(bc.brkpt))
@@ -2497,7 +2497,7 @@ forkexec( register struct op *t, int *pin, int *pout, int act, char **wp, int *p
         (void) &cp;
         (void) &resetsig;
         (void) &owp;
-#endif  
+#endif
 
         owp = wp;
         resetsig = 0;
@@ -2532,7 +2532,7 @@ forkexec( register struct op *t, int *pin, int *pout, int act, char **wp, int *p
                 hintr = intr;
                 hbrklist = brklist;
                 hexecflg = execflg;
-        
+
                 i = vfork();
                 if (i != 0) {
                         /* who wrote this crappy non vfork safe shit? */
@@ -2563,7 +2563,7 @@ forkexec( register struct op *t, int *pin, int *pout, int act, char **wp, int *p
                 (*pforked)++;
                 brklist = 0;
                 execflg = 0;
-        }       
+        }
         if (owp != NULL)
                 while ((cp = *owp++) != NULL && assign(cp, COPYV))
                         if (shcom == NULL)
@@ -2841,7 +2841,7 @@ char *c, **v, **envp;
 #endif
         optind = 1;
         if (find_applet_by_name(name)) {
-                /* We have to exec here since we vforked.  Running 
+                /* We have to exec here since we vforked.  Running
                  * run_applet_by_name() won't work and bad things
                  * will happen. */
                 execve("/proc/self/exe", v, envp);
@@ -2964,8 +2964,8 @@ static int dohelp(struct op *t )
                 for (i=0, applet = applets; i < NUM_APPLETS; applet++, i++) {
                         if (!applet->name)
                                 continue;
-                
-                        col += printf("%s%s", ((col == 0) ? "\t" : " "), 
+
+                        col += printf("%s%s", ((col == 0) ? "\t" : " "),
                                         applet->name);
                         if (col > 60) {
                                 printf("\n");
@@ -3194,7 +3194,7 @@ register struct op *t;
                                 if (n == SIGINT)
                                         setsig(n, onintr);
                                 else
-                                        setsig(n, n == SIGQUIT ? SIG_IGN 
+                                        setsig(n, n == SIGQUIT ? SIG_IGN
                                                                : SIG_DFL);
                         else
                                 setsig(n, SIG_DFL);
@@ -3784,7 +3784,7 @@ int quoted;
         /* Avoid longjmp clobbering */
         (void) &cp;
 #endif
-        
+
         for (cp = e.iop->argp->aword; *cp != '`'; cp++)
                 if (*cp == 0) {
                         err("no closing `");
@@ -3837,7 +3837,7 @@ int quoted;
                                         err("unclosed ${\n");
                                         return(0);
                                 }
-                                if (operator) { 
+                                if (operator) {
                                         src++;
                                         while (*src && (*src != '}')) {
                                                 alt_value[alt_index++] = *src++;
@@ -3875,7 +3875,7 @@ int quoted;
                 }
         }
         *dest = '\0';
-        
+
         if (openpipe(pf) < 0)
                 return(0);
         while ((i = vfork()) == -1 && errno == EAGAIN)
@@ -3897,7 +3897,7 @@ int quoted;
         for (j=0; j<=_NSIG; j++)
                 if (ourtrap[j] && signal(j, SIG_IGN) != SIG_IGN)
                         signal(j, SIG_DFL);
-        
+
         dup2(pf[1], 1);
         closepipe(pf);
 
@@ -4121,7 +4121,7 @@ register struct wdblock *wb;
         wb->w_words[wb->w_nword++] = wd;
         return(wb);
 }
-static 
+static
 char **
 getwords(wb)
 register struct wdblock *wb;
@@ -4557,7 +4557,7 @@ register struct ioarg *ap;
             c = mycommand[position];
             position++;
             return(c);
-        } else 
+        } else
 #endif
         {
                 i = safe_read(ap->afile, &c, sizeof(c));
@@ -4858,7 +4858,7 @@ int xdoll;
                 char c;
                 char tname[30] = ".msh_XXXXXX";
                 jmp_buf ev;
-        
+
                 tf = mkstemp(tname);
                 if (tf < 0)
                         return (-1);
@@ -4917,24 +4917,24 @@ int area;
 /*
  * Copyright (c) 1987,1997, Prentice Hall
  * All rights reserved.
- * 
+ *
  * Redistribution and use of the MINIX operating system in source and
  * binary forms, with or without modification, are permitted provided
  * that the following conditions are met:
- * 
+ *
  * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
- * 
+ *
  * Redistributions in binary form must reproduce the above
  * copyright notice, this list of conditions and the following
  * disclaimer in the documentation and/or other materials provided
  * with the distribution.
- * 
+ *
  * Neither the name of Prentice Hall nor the names of the software
  * authors or contributors may be used to endorse or promote
  * products derived from this software without specific prior
  * written permission.
- * 
+ *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS, AUTHORS, AND
  * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF