-/* vi: set sw=4 ts=4: */
/*
* sh.c -- a prototype Bourne shell grammar parser
* Intended to follow the original Thompson and Ritchie
* Erik W. Troan, which they placed in the public domain. I don't know
* how much of the Johnson/Troan code has survived the repeated rewrites.
* Other credits:
- * simple_itoa() was lifted from boa-0.93.15
* b_addchr() derived from similar w_addchar function in glibc-2.2
* setup_redirect(), redirect_opt_num(), and big chunks of main()
* and many builtins derived from contributions by Erik Andersen
#include <common.h> /* readline */
#include <hush.h>
#include <command.h> /* find_cmd */
-/*cmd_boot.c*/
-extern int do_bootd (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]); /* do_bootd */
#endif
-#ifdef CFG_HUSH_PARSER
#ifndef __U_BOOT__
#include <ctype.h> /* isalpha, isdigit */
#include <unistd.h> /* getpid */
#include <signal.h>
/* #include <dmalloc.h> */
-/* #define DEBUG_SHELL */
#if 1
#include "busybox.h"
};
#endif
+/* define DEBUG_SHELL for debugging output (obviously ;-)) */
+#if 0
+#define DEBUG_SHELL
+#endif
+
/* This should be in utility.c */
#ifdef DEBUG_SHELL
#ifndef __U_BOOT__
va_end(args);
}
#else
-#define debug_printf printf /* U-Boot debug flag */
+#define debug_printf(fmt,args...) printf (fmt ,##args)
#endif
#else
static inline void debug_printf(const char *format, ...) { }
/* local variable support */
static char **make_list_in(char **inp, char *name);
static char *insert_var_value(char *inp);
-static char *get_local_var(const char *var);
-#ifndef __U_BOOT__
-static void unset_local_var(const char *name);
-#endif
-static int set_local_var(const char *s, int flg_export);
#ifndef __U_BOOT__
/* Table of built-in functions. They can be forked or not, depending on
return b_addchr(o, ch);
}
-/* belongs in utility.c */
-char *simple_itoa(unsigned int i)
-{
- /* 21 digits plus null terminator, good for 64-bit or smaller ints */
- static char local[22];
- char *p = &local[21];
- *p-- = '\0';
- do {
- *p-- = '0' + i % 10;
- i /= 10;
- } while (i > 0);
- return p + 1;
-}
-
#ifndef __U_BOOT__
static int b_adduint(o_string *o, unsigned int i)
{
static int static_get(struct in_str *i)
{
- int ch=*i->p++;
+ int ch = *i->p++;
if (ch=='\0') return EOF;
return ch;
}
fflush(stdout);
i->p = the_command;
#else
- extern char console_buffer[CFG_CBSIZE];
int n;
- static char the_command[CFG_CBSIZE];
+ static char the_command[CONFIG_SYS_CBSIZE];
#ifdef CONFIG_BOOT_RETRY_TIME
-# ifdef CONFIG_RESET_TO_RETRY
- extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
-# else
+# ifndef CONFIG_RESET_TO_RETRY
# error "This currently only works with CONFIG_RESET_TO_RETRY enabled"
# endif
reset_cmd_timeout();
#endif
i->__promptme = 1;
if (i->promptmode == 1) {
- n = readline(CFG_PROMPT);
+ n = readline(CONFIG_SYS_PROMPT);
} else {
- n = readline(CFG_PROMPT_HUSH_PS2);
+ n = readline(CONFIG_SYS_PROMPT_HUSH_PS2);
}
#ifdef CONFIG_BOOT_RETRY_TIME
if (n == -2) {
else {
if (console_buffer[0] != '\n') {
if (strlen(the_command) + strlen(console_buffer)
- < CFG_CBSIZE) {
+ < CONFIG_SYS_CBSIZE) {
n = strlen(the_command);
the_command[n-1] = ' ';
strcpy(&the_command[n],console_buffer);
ch = 0;
/* If there is data waiting, eat it up */
if (i->p && *i->p) {
- ch=*i->p++;
+ ch = *i->p++;
} else {
/* need to double check i->file because we might be doing something
* more complicated by now, like sourcing or substituting. */
i->__promptme = 0;
#endif
if (i->p && *i->p) {
- ch=*i->p++;
+ ch = *i->p++;
}
#ifndef __U_BOOT__
} else {
} else {
int rcode;
#if defined(CONFIG_CMD_BOOTD)
- extern int do_bootd (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
-
/* avoid "bootd" recursion */
if (cmdtp->cmd == do_bootd) {
if (flag & CMD_FLAG_BOOTD) {
else
flag |= CMD_FLAG_BOOTD;
}
-#endif /* CFG_CMD_BOOTD */
+#endif
/* found - check max args */
- if ((child->argc - i) > cmdtp->maxargs) {
- printf ("Usage:\n%s\n", cmdtp->usage);
- return -1;
- }
+ if ((child->argc - i) > cmdtp->maxargs)
+ return cmd_usage(cmdtp);
#endif
child->argv+=i; /* XXX horrible hack */
#ifndef __U_BOOT__
#ifndef __U_BOOT__
globfree(&child->glob_result);
#else
- for (a = child->argc;a >= 0;a--) {
+ for (a = 0; a < child->argc; a++) {
free(child->argv[a]);
}
free(child->argv);
#endif
/* This is used to get/check local shell variables */
-static char *get_local_var(const char *s)
+char *get_local_var(const char *s)
{
struct variables *cur;
flg_export==0 if only local (not exporting) variable
flg_export==1 if "new" exporting environ
flg_export>1 if current startup environ (not call putenv()) */
-static int set_local_var(const char *s, int flg_export)
+int set_local_var(const char *s, int flg_export)
{
char *name, *value;
int result=0;
return result;
}
-#ifndef __U_BOOT__
-static void unset_local_var(const char *name)
+void unset_local_var(const char *name)
{
struct variables *cur;
error_msg("%s: readonly variable", name);
return;
} else {
+#ifndef __U_BOOT__
if(cur->flg_export)
unsetenv(cur->name);
+#endif
free(cur->name);
free(cur->value);
while (next->next != cur)
}
}
}
-#endif
static int is_assignment(const char *s)
{
#ifndef __U_BOOT__
static int parse_string_outer(const char *s, int flag)
#else
-int parse_string_outer(char *s, int flag)
+int parse_string_outer(const char *s, int flag)
#endif /* __U_BOOT__ */
{
struct in_str input;
}
#ifdef __U_BOOT__
+#ifdef CONFIG_NEEDS_MANUAL_RELOC
static void u_boot_hush_reloc(void)
{
unsigned long addr;
r->literal = (char *)addr;
}
}
+#endif
int u_boot_hush_start(void)
{
top_vars->next = 0;
top_vars->flg_export = 0;
top_vars->flg_read_only = 1;
+#ifdef CONFIG_NEEDS_MANUAL_RELOC
u_boot_hush_reloc();
+#endif
}
return 0;
}
tcsetpgrp(shell_terminal, shell_pgrp);
}
-int hush_main(int argc, char **argv)
+int hush_main(int argc, char * const *argv)
{
int opt;
FILE *input;
return str;
}
-#endif /* CFG_HUSH_PARSER */
+#ifdef __U_BOOT__
+int do_showvar (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ int i, k;
+ int rcode = 0;
+ struct variables *cur;
+
+ if (argc == 1) { /* Print all env variables */
+ for (cur = top_vars; cur; cur = cur->next) {
+ printf ("%s=%s\n", cur->name, cur->value);
+ if (ctrlc ()) {
+ puts ("\n ** Abort\n");
+ return 1;
+ }
+ }
+ return 0;
+ }
+ for (i = 1; i < argc; ++i) { /* print single env variables */
+ char *name = argv[i];
+
+ k = -1;
+ for (cur = top_vars; cur; cur = cur->next) {
+ if(strcmp (cur->name, name) == 0) {
+ k = 0;
+ printf ("%s=%s\n", cur->name, cur->value);
+ }
+ if (ctrlc ()) {
+ puts ("\n ** Abort\n");
+ return 1;
+ }
+ }
+ if (k < 0) {
+ printf ("## Error: \"%s\" not defined\n", name);
+ rcode ++;
+ }
+ }
+ return rcode;
+}
+
+U_BOOT_CMD(
+ showvar, CONFIG_SYS_MAXARGS, 1, do_showvar,
+ "print local hushshell variables",
+ "\n - print values of all hushshell variables\n"
+ "showvar name ...\n"
+ " - print value of hushshell variable 'name'"
+);
+
+#endif
/****************************************************************************/
projects / karo-tx-uboot.git / blobdiff