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-rw-r--r--shell/hush.c112
1 files changed, 56 insertions, 56 deletions
diff --git a/shell/hush.c b/shell/hush.c
index 84818ff..5da9757 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)
generated by cgit v1.1 at 2024-12-29 05:16:49 +0000