diff options
| -rw-r--r-- | common/cli_hush_modern.c | 274 | ||||
| -rw-r--r-- | common/cli_hush_upstream.c | 502 |
2 files changed, 774 insertions, 2 deletions
diff --git a/common/cli_hush_modern.c b/common/cli_hush_modern.c new file mode 100644 index 00000000000..34278fdca2f --- /dev/null +++ b/common/cli_hush_modern.c @@ -0,0 +1,274 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * This file defines the compilation unit for the new hush shell version. The + * actual implementation from upstream BusyBox can be found in + * `cli_hush_upstream.c` which is included at the end of this file. + * + * This "wrapper" technique is used to keep the changes to the upstream version + * as minmal as possible. Instead, all defines and redefines necessary are done + * here, outside the upstream sources. This will hopefully make upgrades to + * newer revisions much easier. + * + * Copyright (c) 2021, Harald Seiler, DENX Software Engineering, hws@denx.de + */ + +#include <common.h> /* readline */ +#include <env.h> +#include <malloc.h> /* malloc, free, realloc*/ +#include <linux/ctype.h> /* isalpha, isdigit */ +#include <console.h> +#include <bootretry.h> +#include <cli.h> +#include <cli_hush.h> +#include <command.h> /* find_cmd */ +#include <asm/global_data.h> + +/* + * BusyBox Version: UPDATE THIS WHEN PULLING NEW UPSTREAM REVISION! + */ +#define BB_VER "1.34.0.git37460f5daff9" + +/* + * Define hush features by the names used upstream. + */ +#define ENABLE_HUSH_INTERACTIVE 1 +#define ENABLE_FEATURE_EDITING 1 +/* No MMU in U-Boot */ +#define BB_MMU 0 +#define USE_FOR_NOMMU(...) __VA_ARGS__ +#define USE_FOR_MMU(...) + +/* + * Size-saving "small" ints (arch-dependent) + */ +#if CONFIG_IS_ENABLED(X86) || CONFIG_IS_ENABLED(X86_64) || CONFIG_IS_ENABLED(MIPS) +/* add other arches which benefit from this... */ +typedef signed char smallint; +typedef unsigned char smalluint; +#else +/* for arches where byte accesses generate larger code: */ +typedef int smallint; +typedef unsigned smalluint; +#endif + +/* + * Alignment defines used by BusyBox. + */ +#define ALIGN1 __attribute__((aligned(1))) +#define ALIGN2 __attribute__((aligned(2))) +#define ALIGN4 __attribute__((aligned(4))) +#define ALIGN8 __attribute__((aligned(8))) +#define ALIGN_PTR __attribute__((aligned(sizeof(void*)))) + +/* + * Miscellaneous compiler/platform defines. + */ +#define FAST_FUNC /* not used in U-Boot */ +#define UNUSED_PARAM __always_unused +#define ALWAYS_INLINE __always_inline +#define NOINLINE noinline + +/* + * Defines to provide equivalents to what libc/BusyBox defines. + */ +#define EOF (-1) +#define EXIT_SUCCESS 0 +#define EXIT_FAILURE 1 + +/* + * Stubs to provide libc/BusyBox functions based on U-Boot equivalents where it + * makes sense. + */ +#define utoa simple_itoa + +static void __noreturn xfunc_die(void) +{ + panic("HUSH died!"); +} + +#define bb_error_msg_and_die(format, ...) do { \ +panic("HUSH: " format, __VA_ARGS__); \ +} while (0); + +#define bb_simple_error_msg_and_die(msg) do { \ +panic_str("HUSH: " msg); \ +} while (0); + +/* fdprintf() is used for debug output. */ +static int __maybe_unused fdprintf(int fd, const char *format, ...) +{ + va_list args; + uint i; + + assert(fd == 2); + + va_start(args, format); + i = vprintf(format, args); + va_end(args); + + return i; +} + +static void bb_verror_msg(const char *s, va_list p, const char* strerr) +{ + /* TODO: what to do with strerr arg? */ + vprintf(s, p); +} + +static void bb_error_msg(const char *s, ...) +{ + va_list p; + + va_start(p, s); + bb_verror_msg(s, p, NULL); + va_end(p); +} + +static void *xmalloc(size_t size) +{ + void *p = NULL; + if (!(p = malloc(size))) + panic("out of memory"); + return p; +} + +static void *xzalloc(size_t size) +{ + void *p = xmalloc(size); + memset(p, 0, size); + return p; +} + +static void *xrealloc(void *ptr, size_t size) +{ + void *p = NULL; + if (!(p = realloc(ptr, size))) + panic("out of memory"); + return p; +} + +#define xstrdup strdup +#define xstrndup strndup + +static void *mempcpy(void *dest, const void *src, size_t len) +{ + return memcpy(dest, src, len) + len; +} + +/* Like strcpy but can copy overlapping strings. */ +static void overlapping_strcpy(char *dst, const char *src) +{ + /* + * Cheap optimization for dst == src case - + * better to have it here than in many callers. + */ + if (dst != src) { + while ((*dst = *src) != '\0') { + dst++; + src++; + } + } +} + +static char* skip_whitespace(const char *s) +{ + /* + * In POSIX/C locale (the only locale we care about: do we REALLY want + * to allow Unicode whitespace in, say, .conf files? nuts!) + * isspace is only these chars: "\t\n\v\f\r" and space. + * "\t\n\v\f\r" happen to have ASCII codes 9,10,11,12,13. + * Use that. + */ + while (*s == ' ' || (unsigned char)(*s - 9) <= (13 - 9)) + s++; + + return (char *) s; +} + +static char* skip_non_whitespace(const char *s) +{ + while (*s != '\0' && *s != ' ' && (unsigned char)(*s - 9) > (13 - 9)) + s++; + + return (char *) s; +} + +#define is_name(c) ((c) == '_' || isalpha((unsigned char)(c))) +#define is_in_name(c) ((c) == '_' || isalnum((unsigned char)(c))) + +static const char* endofname(const char *name) +{ + if (!is_name(*name)) + return name; + while (*++name) { + if (!is_in_name(*name)) + break; + } + return name; +} + +struct in_str; +static int u_boot_cli_readline(struct in_str *i); + +struct in_str; +static int u_boot_cli_readline(struct in_str *i); + +/* + * BusyBox globals which are needed for hush. + */ +static uint8_t xfunc_error_retval; + +static const char defifsvar[] __aligned(1) = "IFS= \t\n"; +#define defifs (defifsvar + 4) + +/* + * This define is used for changes that need be done directly in the upstream + * sources still. Ideally, its use should be minimized as much as possible. + */ +#define __U_BOOT__ + +/* + * + * +-- Include of the upstream sources --+ * + * V V + */ +#include "cli_hush_upstream.c" +/* + * A A + * +-- Include of the upstream sources --+ * + * + */ + +int u_boot_hush_start_modern(void) +{ + INIT_G(); + return 0; +} + +static int u_boot_cli_readline(struct in_str *i) +{ + char *prompt; + char __maybe_unused *ps_prompt = NULL; + + if (!G.promptmode) + prompt = CONFIG_SYS_PROMPT; +#ifdef CONFIG_SYS_PROMPT_HUSH_PS2 + else + prompt = CONFIG_SYS_PROMPT_HUSH_PS2; +#else + /* TODO: default value? */ + #error "SYS_PROMPT_HUSH_PS2 is not defined!" +#endif + + if (CONFIG_IS_ENABLED(CMDLINE_PS_SUPPORT)) { + if (!G.promptmode) + ps_prompt = env_get("PS1"); + else + ps_prompt = env_get("PS2"); + + if (ps_prompt) + prompt = ps_prompt; + } + + return cli_readline(prompt); +} diff --git a/common/cli_hush_upstream.c b/common/cli_hush_upstream.c index c970d9097e6..3f2e4a54956 100644 --- a/common/cli_hush_upstream.c +++ b/common/cli_hush_upstream.c @@ -343,6 +343,7 @@ //usage:#define hush_full_usage "\n\n" //usage: "Unix shell interpreter" +#ifndef __U_BOOT__ #if !(defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) \ || defined(__APPLE__) \ ) @@ -378,6 +379,7 @@ #else # define NUM_SCRIPTS 0 #endif +#endif /* !__U_BOOT__ */ /* So far, all bash compat is controlled by one config option */ /* Separate defines document which part of code implements what */ @@ -421,10 +423,10 @@ # define USE_FOR_MMU(...) #endif +#ifndef __U_BOOT__ #include "NUM_APPLETS.h" #if NUM_APPLETS == 1 /* STANDALONE does not make sense, and won't compile */ -# undef CONFIG_FEATURE_SH_STANDALONE # undef ENABLE_FEATURE_SH_STANDALONE # undef IF_FEATURE_SH_STANDALONE # undef IF_NOT_FEATURE_SH_STANDALONE @@ -432,6 +434,7 @@ # define IF_FEATURE_SH_STANDALONE(...) # define IF_NOT_FEATURE_SH_STANDALONE(...) __VA_ARGS__ #endif +#endif /* __U_BOOT__ */ #if !ENABLE_HUSH_INTERACTIVE # undef ENABLE_FEATURE_EDITING @@ -477,8 +480,13 @@ #define JOB_STATUS_FORMAT "[%u] %-22s %.40s\n" #define _SPECIAL_VARS_STR "_*@$!?#-" +#ifndef __U_BOOT__ #define SPECIAL_VARS_STR ("_*@$!?#-" + 1) #define NUMERIC_SPECVARS_STR ("_*@$!?#-" + 3) +#else /* __U_BOOT__ */ +#define SPECIAL_VARS_STR "*@$!?#-" +#define NUMERIC_SPECVARS_STR "$!?#-" +#endif /* __U_BOOT__ */ #if BASH_PATTERN_SUBST /* Support / and // replace ops */ /* Note that // is stored as \ in "encoded" string representation */ @@ -511,6 +519,7 @@ typedef struct nommu_save_t { } nommu_save_t; #endif + enum { RES_NONE = 0, #if ENABLE_HUSH_IF @@ -594,6 +603,7 @@ typedef struct in_str { HFILE *file; } in_str; +#ifndef __U_BOOT__ /* The descrip member of this structure is only used to make * debugging output pretty */ static const struct { @@ -640,9 +650,12 @@ typedef enum redir_type { HEREDOC_QUOTED = 2, } redir_type; +#endif /* !__U_BOOT__ */ struct command { +#ifndef __U_BOOT__ pid_t pid; /* 0 if exited */ +#endif /* !__U_BOOT__ */ unsigned assignment_cnt; /* how many argv[i] are assignments? */ #if ENABLE_HUSH_LINENO_VAR unsigned lineno; @@ -685,6 +698,9 @@ struct command { * (sets ->child_func->parent_cmd to NULL). */ #endif +#ifdef __U_BOOT__ + int argc; /* number of program arguments */ +#endif char **argv; /* command name and arguments */ /* argv vector may contain variable references (^Cvar^C, ^C0^C etc) * and on execution these are substituted with their values. @@ -692,15 +708,23 @@ struct command { * Example: argv[0]=='.^C*^C.' here: echo .$*. * References of the form ^C`cmd arg^C are `cmd arg` substitutions. */ +#ifndef __U_BOOT__ struct redir_struct *redirects; /* I/O redirections */ +#endif /* !__U_BOOT__ */ }; /* Is there anything in this command at all? */ +#ifndef __U_BOOT__ #define IS_NULL_CMD(cmd) \ (!(cmd)->group && !(cmd)->argv && !(cmd)->redirects) +#else /* __U_BOOT__ */ +#define IS_NULL_CMD(cmd) \ + (!(cmd)->group && !(cmd)->argv) +#endif /* __U_BOOT__ */ struct pipe { struct pipe *next; int num_cmds; /* total number of commands in pipe */ +#ifndef __U_BOOT__ int alive_cmds; /* number of commands running (not exited) */ int stopped_cmds; /* number of commands alive, but stopped */ #if ENABLE_HUSH_JOB @@ -708,6 +732,7 @@ struct pipe { pid_t pgrp; /* process group ID for the job */ char *cmdtext; /* name of job */ #endif +#endif /* !__U_BOOT__ */ struct command *cmds; /* array of commands in pipe */ smallint followup; /* PIPE_BG, PIPE_SEQ, PIPE_OR, PIPE_AND */ IF_HAS_KEYWORDS(smallint pi_inverted;) /* "! cmd | cmd" */ @@ -731,8 +756,10 @@ struct parse_context { struct pipe *pipe; /* last command in pipe (being constructed right now) */ struct command *command; +#ifndef __U_BOOT__ /* last redirect in command->redirects list */ struct redir_struct *pending_redirect; +#endif /* !__U_BOOT__ */ o_string word; #if !BB_MMU o_string as_string; @@ -766,19 +793,23 @@ enum { WORD_IS_KEYWORD = 3, }; +#ifndef __U_BOOT__ /* On program start, environ points to initial environment. * putenv adds new pointers into it, unsetenv removes them. * Neither of these (de)allocates the strings. * setenv allocates new strings in malloc space and does putenv, * and thus setenv is unusable (leaky) for shell's purposes */ #define setenv(...) setenv_is_leaky_dont_use() +#endif /* !__U_BOOT__ */ struct variable { struct variable *next; char *varstr; /* points to "name=" portion */ int max_len; /* if > 0, name is part of initial env; else name is malloced */ +#ifndef __U_BOOT__ uint16_t var_nest_level; smallint flg_export; /* putenv should be done on this var */ smallint flg_read_only; +#endif /* !__U_BOOT__ */ }; enum { @@ -850,6 +881,7 @@ enum { /* "Globals" within this file */ /* Sorted roughly by size (smaller offsets == smaller code) */ struct globals { +#ifndef __U_BOOT__ /* interactive_fd != 0 means we are an interactive shell. * If we are, then saved_tty_pgrp can also be != 0, meaning * that controlling tty is available. With saved_tty_pgrp == 0, @@ -870,6 +902,10 @@ struct globals { #else # define G_interactive_fd 0 #endif +#else /* __U_BOOT__ */ +# define G_interactive_fd 0 +#endif /* __U_BOOT__ */ +#ifndef __U_BOOT__ #if ENABLE_FEATURE_EDITING line_input_t *line_input_state; #endif @@ -888,8 +924,10 @@ struct globals { #else # define G_saved_tty_pgrp 0 #endif +#endif /* !__U_BOOT__ */ /* How deeply are we in context where "set -e" is ignored */ int errexit_depth; +#ifndef __U_BOOT__ /* "set -e" rules (do we follow them correctly?): * Exit if pipe, list, or compound command exits with a non-zero status. * Shell does not exit if failed command is part of condition in @@ -915,13 +953,16 @@ struct globals { #endif char opt_s; char opt_c; +#endif /* !__U_BOOT__ */ #if ENABLE_HUSH_INTERACTIVE smallint promptmode; /* 0: PS1, 1: PS2 */ #endif smallint flag_SIGINT; +#ifndef __U_BOOT__ #if ENABLE_HUSH_LOOPS smallint flag_break_continue; #endif +#endif /* !__U_BOOT__ */ #if ENABLE_HUSH_FUNCTIONS /* 0: outside of a function (or sourced file) * -1: inside of a function, ok to use return builtin @@ -937,6 +978,7 @@ struct globals { smalluint last_exitcode; smalluint expand_exitcode; smalluint last_bg_pid_exitcode; +#ifndef __U_BOOT__ #if ENABLE_HUSH_SET /* are global_argv and global_argv[1..n] malloced? (note: not [0]) */ smalluint global_args_malloced; @@ -947,6 +989,7 @@ struct globals { #if ENABLE_HUSH_BASH_COMPAT int dead_job_exitcode; /* for "wait -n" */ #endif +#endif /* !__U_BOOT__ */ /* how many non-NULL argv's we have. NB: $# + 1 */ int global_argc; char **global_argv; @@ -954,19 +997,30 @@ struct globals { char *argv0_for_re_execing; #endif #if ENABLE_HUSH_LOOPS +#ifndef __U_BOOT__ unsigned depth_break_continue; +#endif /* !__U_BOOT__ */ unsigned depth_of_loop; #endif +#ifndef __U_BOOT__ #if ENABLE_HUSH_GETOPTS unsigned getopt_count; #endif +#endif /* !__U_BOOT__ */ const char *ifs; +#ifdef __U_BOOT__ + int flag_repeat; + int do_repeat; +#endif /* __U_BOOT__ */ char *ifs_whitespace; /* = G.ifs or malloced */ +#ifndef __U_BOOT__ const char *cwd; +#endif /* !__U_BOOT__ */ struct variable *top_var; char **expanded_assignments; struct variable **shadowed_vars_pp; unsigned var_nest_level; +#ifndef __U_BOOT__ #if ENABLE_HUSH_FUNCTIONS # if ENABLE_HUSH_LOCAL unsigned func_nest_level; /* solely to prevent "local v" in non-functions */ @@ -1022,9 +1076,11 @@ struct globals { int x_mode_fd; o_string x_mode_buf; #endif +#endif /* !__U_BOOT__ */ #if HUSH_DEBUG >= 2 int debug_indent; #endif +#ifndef __U_BOOT__ struct sigaction sa; char optstring_buf[sizeof("eixcs")]; #if BASH_EPOCH_VARS @@ -1033,19 +1089,35 @@ struct globals { #if ENABLE_FEATURE_EDITING char user_input_buf[CONFIG_FEATURE_EDITING_MAX_LEN]; #endif +#endif /* !__U_BOOT__ */ }; +#ifdef __U_BOOT__ +struct globals *ptr_to_globals; +#endif /* __U_BOOT__ */ #define G (*ptr_to_globals) /* Not #defining name to G.name - this quickly gets unwieldy * (too many defines). Also, I actually prefer to see when a variable * is global, thus "G." prefix is a useful hint */ +#ifdef __U_BOOT__ +#define SET_PTR_TO_GLOBALS(x) do { \ + (*(struct globals**)&ptr_to_globals) = (void*)(x); \ + barrier(); \ +} while (0) +#define INIT_G() do { \ + SET_PTR_TO_GLOBALS(xzalloc(sizeof(G))); \ + G.promptmode = 1; \ +} while (0) +#else /* !__U_BOOT__ */ #define INIT_G() do { \ SET_PTR_TO_GLOBALS(xzalloc(sizeof(G))); \ /* memset(&G.sa, 0, sizeof(G.sa)); */ \ sigfillset(&G.sa.sa_mask); \ G.sa.sa_flags = SA_RESTART; \ } while (0) +#endif /* !__U_BOOT__ */ +#ifndef __U_BOOT__ /* Function prototypes for builtins */ static int builtin_cd(char **argv) FAST_FUNC; #if ENABLE_HUSH_ECHO @@ -1245,6 +1317,7 @@ static const struct built_in_command bltins2[] ALIGN_PTR = { #endif }; +#endif /* !__U_BOOT__ */ /* Debug printouts. */ @@ -1396,7 +1469,11 @@ static void die_if_script(void) } } +#ifdef __U_BOOT__ +static void __maybe_unused msg_and_die_if_script(unsigned lineno, const char *fmt, ...) +#else /* !__U_BOOT__ */ static void msg_and_die_if_script(unsigned lineno, const char *fmt, ...) +#endif /* !__U_BOOT__ */ { va_list p; @@ -1409,6 +1486,7 @@ static void msg_and_die_if_script(unsigned lineno, const char *fmt, ...) die_if_script(); } +#ifndef __U_BOOT__ static void syntax_error(unsigned lineno UNUSED_PARAM, const char *msg) { if (msg) @@ -1417,6 +1495,7 @@ static void syntax_error(unsigned lineno UNUSED_PARAM, const char *msg) bb_simple_error_msg("syntax error"); die_if_script(); } +#endif /* !__U_BOOT__ */ static void syntax_error_at(unsigned lineno UNUSED_PARAM, const char *msg) { @@ -1465,13 +1544,16 @@ static void syntax_error_unexpected_ch(unsigned lineno UNUSED_PARAM, int ch) # define syntax_error_unexpected_ch(ch) syntax_error_unexpected_ch(__LINE__, ch) #endif - /* Utility functions */ /* Replace each \x with x in place, return ptr past NUL. */ static char *unbackslash(char *src) { +#ifdef __U_BOOT__ + char *dst = src = (char *)strchrnul(src, '\\'); +#else /* !__U_BOOT__ */ char *dst = src = strchrnul(src, '\\'); +#endif /* !__U_BOOT__ */ while (1) { if (*src == '\\') { src++; @@ -1539,6 +1621,7 @@ static char **add_string_to_strings(char **strings, char *add) v[1] = NULL; return add_strings_to_strings(strings, v, /*dup:*/ 0); } + #if LEAK_HUNTING static char **xx_add_string_to_strings(int lineno, char **strings, char *add) { @@ -1564,6 +1647,7 @@ static void free_strings(char **strings) free(strings); } +#ifndef __U_BOOT__ static int dup_CLOEXEC(int fd, int avoid_fd) { int newfd; @@ -1749,6 +1833,7 @@ static int fd_in_HFILEs(int fd) return 0; } +#endif /* !__U_BOOT__ */ /* Helpers for setting new $n and restoring them back */ @@ -1756,9 +1841,12 @@ typedef struct save_arg_t { char *sv_argv0; char **sv_g_argv; int sv_g_argc; +#ifndef __U_BOOT__ IF_HUSH_SET(smallint sv_g_malloced;) +#endif /* !__U_BOOT__ */ } save_arg_t; +#ifndef __U_BOOT__ static void save_and_replace_G_args(save_arg_t *sv, char **argv) { sv->sv_argv0 = argv[0]; @@ -1789,8 +1877,10 @@ static void restore_G_args(save_arg_t *sv, char **argv) G.global_argc = sv->sv_g_argc; IF_HUSH_SET(G.global_args_malloced = sv->sv_g_malloced;) } +#endif /* !__U_BOOT__ */ +#ifndef __U_BOOT__ /* Basic theory of signal handling in shell * ======================================== * This does not describe what hush does, rather, it is current understanding @@ -1969,7 +2059,9 @@ static sighandler_t install_sighandler(int sig, sighandler_t handler) sigaction(sig, &G.sa, &old_sa); return old_sa.sa_handler; } +#endif /* !__U_BOOT__ */ +#ifndef __U_BOOT__ static void hush_exit(int exitcode) NORETURN; static void restore_ttypgrp_and__exit(void) NORETURN; @@ -2039,7 +2131,9 @@ static void sigexit(int sig) # define enable_restore_tty_pgrp_on_exit() ((void)0) #endif +#endif /* !__U_BOOT__ */ +#ifndef __U_BOOT__ static sighandler_t pick_sighandler(unsigned sig) { sighandler_t handler = SIG_DFL; @@ -2066,7 +2160,9 @@ static sighandler_t pick_sighandler(unsigned sig) } return handler; } +#endif /* !__U_BOOT__ */ +#ifndef __U_BOOT__ /* Restores tty foreground process group, and exits. */ static void hush_exit(int exitcode) { @@ -2226,6 +2322,7 @@ static const char *get_cwd(int force) return G.cwd; } +#endif /* !__U_BOOT__ */ /* * Shell and environment variable support @@ -2263,8 +2360,10 @@ static const char* FAST_FUNC get_local_var_value(const char *name) if (vpp) return (*vpp)->varstr + len + 1; +#ifndef __U_BOOT__ if (strcmp(name, "PPID") == 0) return utoa(G.root_ppid); +#endif /* !__U_BOOT__ */ // bash compat: UID? EUID? #if ENABLE_HUSH_RANDOM_SUPPORT if (strcmp(name, "RANDOM") == 0) @@ -2293,6 +2392,7 @@ static const char* FAST_FUNC get_local_var_value(const char *name) return NULL; } +#ifndef __U_BOOT__ #if ENABLE_HUSH_GETOPTS static void handle_changed_special_names(const char *name, unsigned name_len) { @@ -2307,15 +2407,25 @@ static void handle_changed_special_names(const char *name, unsigned name_len) /* Do not even bother evaluating arguments */ # define handle_changed_special_names(...) ((void)0) #endif +#else /* __U_BOOT__ */ +/* Do not even bother evaluating arguments */ +# define handle_changed_special_names(...) ((void)0) +#endif /* __U_BOOT__ */ /* str holds "NAME=VAL" and is expected to be malloced. * We take ownership of it. */ +#ifndef __U_BOOT__ #define SETFLAG_EXPORT (1 << 0) #define SETFLAG_UNEXPORT (1 << 1) #define SETFLAG_MAKE_RO (1 << 2) +#endif /* !__U_BOOT__ */ #define SETFLAG_VARLVL_SHIFT 3 +#ifndef __U_BOOT__ static int set_local_var(char *str, unsigned flags) +#else /* __U_BOOT__ */ +int set_local_var_modern(char *str, int flags) +#endif /* __U_BOOT__ */ { struct variable **cur_pp; struct variable *cur; @@ -2323,7 +2433,9 @@ static int set_local_var(char *str, unsigned flags) char *eq_sign; int name_len; int retval; +#ifndef __U_BOOT__ unsigned local_lvl = (flags >> SETFLAG_VARLVL_SHIFT); +#endif /* !__U_BOOT__ */ eq_sign = strchr(str, '='); if (HUSH_DEBUG && !eq_sign) @@ -2337,6 +2449,7 @@ static int set_local_var(char *str, unsigned flags) continue; } +#ifndef __U_BOOT__ /* We found an existing var with this name */ if (cur->flg_read_only) { bb_error_msg("%s: readonly variable", str); @@ -2389,6 +2502,7 @@ static int set_local_var(char *str, unsigned flags) } break; } +#endif /* !__U_BOOT__ */ if (strcmp(cur->varstr + name_len, eq_sign + 1) == 0) { debug_printf_env("assignement '%s' does not change anything\n", str); @@ -2420,15 +2534,22 @@ static int set_local_var(char *str, unsigned flags) } /* Not found or shadowed - create new variable struct */ +#ifndef __U_BOOT__ debug_printf_env("%s: alloc new var '%s'/%u\n", __func__, str, local_lvl); +#else /* __U_BOOT__ */ + debug_printf_env("%s: alloc new var '%s'\n", __func__, str); +#endif /* __U_BOOT__ */ cur = xzalloc(sizeof(*cur)); +#ifndef __U_BOOT__ cur->var_nest_level = local_lvl; +#endif /* !__U_BOOT__ */ cur->next = *cur_pp; *cur_pp = cur; set_str_and_exp: cur->varstr = str; exp: +#ifndef __U_BOOT__ #if !BB_MMU || ENABLE_HUSH_READONLY if (flags & SETFLAG_MAKE_RO) { cur->flg_read_only = 1; @@ -2436,7 +2557,9 @@ static int set_local_var(char *str, unsigned flags) #endif if (flags & SETFLAG_EXPORT) cur->flg_export = 1; +#endif /* !__U_BOOT__ */ retval = 0; +#ifndef __U_BOOT__ if (cur->flg_export) { if (flags & SETFLAG_UNEXPORT) { cur->flg_export = 0; @@ -2449,6 +2572,7 @@ static int set_local_var(char *str, unsigned flags) */ } } +#endif /* !__U_BOOT__ */ free(free_me); handle_changed_special_names(cur->varstr, name_len - 1); @@ -2456,6 +2580,7 @@ static int set_local_var(char *str, unsigned flags) return retval; } +#ifndef __U_BOOT__ static void FAST_FUNC set_local_var_from_halves(const char *name, const char *val) { char *var = xasprintf("%s=%s", name, val); @@ -2467,6 +2592,7 @@ static void set_pwd_var(unsigned flag) { set_local_var(xasprintf("PWD=%s", get_cwd(/*force:*/ 1)), flag); } +#endif /* !__U_BOOT__ */ #if ENABLE_HUSH_UNSET || ENABLE_HUSH_GETOPTS static int unset_local_var_len(const char *name, int name_len) @@ -2509,6 +2635,7 @@ static int unset_local_var(const char *name) #endif +#ifndef __U_BOOT__ /* * Helpers for "var1=val1 var2=val2 cmd" feature */ @@ -2602,11 +2729,13 @@ static void reinit_unicode_for_hush(void) } } +#endif /* !__U_BOOT__ */ /* * in_str support (strings, and "strings" read from files). */ #if ENABLE_HUSH_INTERACTIVE +#ifndef __U_BOOT__ /* To test correct lineedit/interactive behavior, type from command line: * echo $P\ * \ @@ -2639,8 +2768,15 @@ static const char *setup_prompt_string(void) debug_printf("prompt_str '%s'\n", prompt_str); return prompt_str; } +#endif /* !__U_BOOT__ */ + +#ifndef __U_BOOT__ static int get_user_input(struct in_str *i) +#else /* __U_BOOT__ */ +static void get_user_input(struct in_str *i) +#endif /* __U_BOOT__ */ { +#ifndef __U_BOOT__ # if ENABLE_FEATURE_EDITING /* In EDITING case, this function reads next input line, * saves it in i->p, then returns 1st char of it. @@ -2716,37 +2852,139 @@ static int get_user_input(struct in_str *i) } return r; # endif +#else /* __U_BOOT__ */ + int n; + int promptme; + static char the_command[CONFIG_SYS_CBSIZE + 1]; + + bootretry_reset_cmd_timeout(); + promptme = 1; + n = u_boot_cli_readline(i); + +# ifdef CONFIG_BOOT_RETRY_TIME + if (n == -2) { + puts("\nTimeout waiting for command\n"); +# ifdef CONFIG_RESET_TO_RETRY + do_reset(NULL, 0, 0, NULL); +# else +# error "This currently only works with CONFIG_RESET_TO_RETRY enabled" +# endif + } +# endif + if (n == -1 ) { + G.flag_repeat = 0; + promptme = 0; + } + n = strlen(console_buffer); + console_buffer[n] = '\n'; + console_buffer[n+1]= '\0'; + if (had_ctrlc()) + G.flag_repeat = 0; + clear_ctrlc(); + G.do_repeat = 0; +#ifndef __U_BOOT__ + if (G.promptmode == 1) { +#else /* __U_BOOT__ */ + if (!G.promptmode) { +#endif /* __U_BOOT__ */ + if (console_buffer[0] == '\n'&& G.flag_repeat == 0) { + strcpy(the_command, console_buffer); + } + else { + if (console_buffer[0] != '\n') { + strcpy(the_command, console_buffer); + G.flag_repeat = 1; + } + else { + G.do_repeat = 1; + } + } + i->p = the_command; + } + else { + if (console_buffer[0] != '\n') { + if (strlen(the_command) + strlen(console_buffer) + < CONFIG_SYS_CBSIZE) { + n = strlen(the_command); +#ifdef __U_BOOT__ + /* + * To avoid writing to bad places, we check if + * n is greater than 0. + * This bug was found by Harald Seiler. + */ + if (n > 0) + the_command[n-1] = ' '; + strcpy(&the_command[n], console_buffer); +#else /* !__U_BOOT__ */ + the_command[n-1] = ' '; + strcpy(&the_command[n], console_buffer); +#endif /* !__U_BOOT__ */ + } + else { + the_command[0] = '\n'; + the_command[1] = '\0'; + G.flag_repeat = 0; + } + } + if (promptme == 0) { + the_command[0] = '\n'; + the_command[1] = '\0'; + } + i->p = console_buffer; + } +#endif /* __U_BOOT__ */ } /* This is the magic location that prints prompts * and gets data back from the user */ static int fgetc_interactive(struct in_str *i) { int ch; +#ifndef __U_BOOT__ /* If it's interactive stdin, get new line. */ if (G_interactive_fd && i->file == G.HFILE_stdin) { +#endif /* !__U_BOOT__ */ +#ifndef __U_BOOT__ /* Returns first char (or EOF), the rest is in i->p[] */ ch = get_user_input(i); +#else /* __U_BOOT__ */ + /* Avoid garbage value and make clang happy. */ + ch = 0; + /* + * get_user_input() does not return anything when used in + * U-Boot. + * So, we need to take the read character from i->p[]. + */ + get_user_input(i); + if (i->p && *i->p) { + ch = *i->p++; + } +#endif /* __U_BOOT__ */ G.promptmode = 1; /* PS2 */ debug_printf_prompt("%s promptmode=%d\n", __func__, G.promptmode); +#ifndef __U_BOOT__ } else { /* Not stdin: script file, sourced file, etc */ do ch = hfgetc(i->file); while (ch == '\0'); } +#endif /* !__U_BOOT__ */ return ch; } #else /* !INTERACTIVE */ +#ifndef __U_BOOT__ static ALWAYS_INLINE int fgetc_interactive(struct in_str *i) { int ch; do ch = hfgetc(i->file); while (ch == '\0'); return ch; } +#endif /* !__U_BOOT__ */ #endif /* !INTERACTIVE */ static int i_getch(struct in_str *i) { int ch; +#ifndef __U_BOOT__ if (!i->file) { /* string-based in_str */ ch = (unsigned char)*i->p; @@ -2758,6 +2996,7 @@ static int i_getch(struct in_str *i) return EOF; } +#endif /* !__U_BOOT__ */ /* FILE-based in_str */ #if ENABLE_FEATURE_EDITING @@ -2767,6 +3006,7 @@ static int i_getch(struct in_str *i) goto out; } #endif +#ifndef __U_BOOT__ /* peek_buf[] is an int array, not char. Can contain EOF. */ ch = i->peek_buf[0]; if (ch != 0) { @@ -2778,6 +3018,7 @@ static int i_getch(struct in_str *i) goto out; } +#endif /* !__U_BOOT__ */ ch = fgetc_interactive(i); out: debug_printf("file_get: got '%c' %d\n", ch, ch); @@ -2793,6 +3034,7 @@ static int i_getch(struct in_str *i) static int i_peek(struct in_str *i) { +#ifndef __U_BOOT__ int ch; if (!i->file) { @@ -2827,6 +3069,11 @@ static int i_peek(struct in_str *i) i->peek_buf[0] = ch; /*i->peek_buf[1] = 0; - already is */ return ch; +#else /* __U_BOOT__ */ + /* string-based in_str */ + /* Doesn't report EOF on NUL. None of the callers care. */ + return (unsigned char)*i->p; +#endif /* __U_BOOT__ */ } /* Only ever called if i_peek() was called, and did not return EOF. @@ -2835,7 +3082,9 @@ static int i_peek(struct in_str *i) */ static int i_peek2(struct in_str *i) { +#ifndef __U_BOOT__ int ch; +#endif /* !__U_BOOT__ */ /* There are two cases when i->p[] buffer exists. * (1) it's a string in_str. @@ -2846,6 +3095,7 @@ static int i_peek2(struct in_str *i) if (i->p) return (unsigned char)i->p[1]; +#ifndef __U_BOOT__ /* Now we know it is a file-based in_str. */ /* peek_buf[] is an int array, not char. Can contain EOF. */ @@ -2859,6 +3109,9 @@ static int i_peek2(struct in_str *i) debug_printf("file_peek2: got '%c' %d\n", ch, ch); return ch; +#else + return 0; +#endif /* __U_BOOT__ */ } static int i_getch_and_eat_bkslash_nl(struct in_str *input) @@ -2897,13 +3150,20 @@ static int i_peek_and_eat_bkslash_nl(struct in_str *input) } } +#ifndef __U_BOOT__ static void setup_file_in_str(struct in_str *i, HFILE *fp) +#else /* __U_BOOT__ */ +static void setup_file_in_str(struct in_str *i) +#endif /* __U_BOOT__ */ { memset(i, 0, sizeof(*i)); +#ifndef __U_BOOT__ i->file = fp; /* i->p = NULL; */ +#endif /* !__U_BOOT__ */ } +#ifndef __U_BOOT__ static void setup_string_in_str(struct in_str *i, const char *s) { memset(i, 0, sizeof(*i)); @@ -2911,6 +3171,7 @@ static void setup_string_in_str(struct in_str *i, const char *s) i->p = s; } +#endif /* !__U_BOOT__ */ /* * o_string support @@ -2980,10 +3241,12 @@ static void o_addstr(o_string *o, const char *str) o_addblock(o, str, strlen(str)); } +#ifndef __U_BOOT__ static void o_addstr_with_NUL(o_string *o, const char *str) { o_addblock(o, str, strlen(str) + 1); } +#endif /* !__U_BOOT__ */ #if !BB_MMU static void nommu_addchr(o_string *o, int ch) @@ -2995,6 +3258,7 @@ static void nommu_addchr(o_string *o, int ch) # define nommu_addchr(o, str) ((void)0) #endif +#ifndef __U_BOOT__ #if ENABLE_HUSH_MODE_X static void x_mode_addchr(int ch) { @@ -3025,6 +3289,7 @@ static void x_mode_flush(void) G.x_mode_buf.length = 0; } #endif +#endif /* !__U_BOOT__ */ /* * HUSH_BRACE_EXPANSION code needs corresponding quoting on variable expansion side. @@ -3156,7 +3421,11 @@ static void debug_print_list(const char *prefix, o_string *o, int n) if (n) { const char *p = o->data + (int)(uintptr_t)list[n - 1] + string_start; indent(); +#ifndef __U_BOOT__ fdprintf(2, " total_sz:%ld\n", (long)((p + strlen(p) + 1) - o->data)); +#else /* __U_BOOT__ */ + printf(" total_sz:%ld\n", (long)((p + strlen(p) + 1) - o->data)); +#endif /* __U_BOOT__ */ } } #else @@ -3216,6 +3485,7 @@ static int o_get_last_ptr(o_string *o, int n) return ((int)(uintptr_t)list[n-1]) + string_start; } +#ifndef __U_BOOT__ /* * Globbing routines. * @@ -3524,12 +3794,14 @@ static int perform_glob(o_string *o, int n) return n; } +#endif /* !__U_BOOT__ */ #endif /* !HUSH_BRACE_EXPANSION */ /* If o->o_expflags & EXP_FLAG_GLOB, glob the string so far remembered. * Otherwise, just finish current list[] and start new */ static int o_save_ptr(o_string *o, int n) { +#ifndef __U_BOOT__ if (o->o_expflags & EXP_FLAG_GLOB) { /* If o->has_empty_slot, list[n] was already globbed * (if it was requested back then when it was filled) @@ -3537,6 +3809,7 @@ static int o_save_ptr(o_string *o, int n) if (!o->has_empty_slot) return perform_glob(o, n); /* o_save_ptr_helper is inside */ } +#endif /* !__U_BOOT__ */ return o_save_ptr_helper(o, n); } @@ -3567,10 +3840,14 @@ static struct pipe *free_pipe(struct pipe *pi) struct pipe *next; int i; +#ifndef __U_BOOT__ debug_printf_clean("free_pipe (pid %d)\n", getpid()); +#endif /* !__U_BOOT__ */ for (i = 0; i < pi->num_cmds; i++) { struct command *command; +#ifndef __U_BOOT__ struct redir_struct *r, *rnext; +#endif /* !__U_BOOT__ */ command = &pi->cmds[i]; debug_printf_clean(" command %d:\n", i); @@ -3605,6 +3882,7 @@ static struct pipe *free_pipe(struct pipe *pi) free(command->group_as_string); //command->group_as_string = NULL; #endif +#ifndef __U_BOOT__ for (r = command->redirects; r; r = rnext) { debug_printf_clean(" redirect %d%s", r->rd_fd, redir_table[r->rd_type].descrip); @@ -3619,13 +3897,16 @@ static struct pipe *free_pipe(struct pipe *pi) free(r); } //command->redirects = NULL; +#endif /* !__U_BOOT__ */ } free(pi->cmds); /* children are an array, they get freed all at once */ //pi->cmds = NULL; +#ifndef __U_BOOT__ #if ENABLE_HUSH_JOB free(pi->cmdtext); //pi->cmdtext = NULL; #endif +#endif /* !__U_BOOT__ */ next = pi->next; free(pi); @@ -3655,6 +3936,7 @@ static void debug_print_tree(struct pipe *pi, int lvl) [PIPE_OR ] = "OR" , [PIPE_BG ] = "BG" , }; +#ifndef __U_BOOT__ static const char *RES[] = { [RES_NONE ] = "NONE" , # if ENABLE_HUSH_IF @@ -3684,6 +3966,7 @@ static void debug_print_tree(struct pipe *pi, int lvl) [RES_XXXX ] = "XXXX" , [RES_SNTX ] = "SNTX" , }; +#endif /* !__U_BOOT__ */ static const char *const CMDTYPE[] = { "{}", "()", @@ -3701,8 +3984,10 @@ static void debug_print_tree(struct pipe *pi, int lvl) lvl*2, "", pin, pi->num_cmds, +#ifdef __U_BOOT__ (IF_HAS_KEYWORDS(pi->pi_inverted ? "! " :) ""), RES[pi->res_word], +#endif /* !__U_BOOT__ */ pi->followup, PIPE[pi->followup] ); prn = 0; @@ -3734,8 +4019,10 @@ static void debug_print_tree(struct pipe *pi, int lvl) fdprintf(2, " '%s'", *argv); argv++; } +#ifndef __U_BOOT__ if (command->redirects) fdprintf(2, " {redir}"); +#endif /* __U_BOOT__ */ fdprintf(2, "\n"); prn++; } @@ -3869,8 +4156,13 @@ static void done_pipe(struct parse_context *ctx, pipe_style type) ) { struct pipe *new_p; debug_printf_parse("done_pipe: adding new pipe: " +#ifndef __U_BOOT__ "not_null:%d ctx->ctx_res_w:%d\n", not_null, ctx->ctx_res_w); +#else /* __U_BOOT__ */ + "not_null:%d\n", + not_null); +#endif /* __U_BOOT__ */ new_p = new_pipe(); ctx->pipe->next = new_p; ctx->pipe = new_p; @@ -4096,6 +4388,7 @@ static int done_word(struct parse_context *ctx) return 0; } +#ifndef __U_BOOT__ if (ctx->pending_redirect) { /* We do not glob in e.g. >*.tmp case. bash seems to glob here * only if run as "bash", not "sh" */ @@ -4137,6 +4430,7 @@ static int done_word(struct parse_context *ctx) debug_printf_parse("word stored in rd_filename: '%s'\n", ctx->word.data); ctx->pending_redirect = NULL; } else { +#endif /* !__U_BOOT__ */ #if HAS_KEYWORDS # if ENABLE_HUSH_CASE if (ctx->ctx_dsemicolon @@ -4247,8 +4541,14 @@ static int done_word(struct parse_context *ctx) } debug_printf_parse("ctx->is_assignment='%s'\n", assignment_flag[ctx->is_assignment]); command->argv = add_string_to_strings(command->argv, xstrdup(ctx->word.data)); +#ifdef __U_BOOT__ + command->argc++; +#endif /* __U_BOOT__ */ debug_print_strings("word appended to argv", command->argv); + +#ifndef __U_BOOT__ } +#endif /* !__U_BOOT__ */ #if ENABLE_HUSH_LOOPS if (ctx->ctx_res_w == RES_FOR) { @@ -4280,6 +4580,7 @@ static int done_word(struct parse_context *ctx) } +#ifndef __U_BOOT__ /* Peek ahead in the input to find out if we have a "&n" construct, * as in "2>&1", that represents duplicating a file descriptor. * Return: @@ -4463,7 +4764,11 @@ static char *fetch_till_str(o_string *as_string, nommu_addchr(as_string, ch); if (ch == '\n' || ch == EOF) { check_heredoc_end: +#ifndef __U_BOOT__ if ((heredoc_flags & HEREDOC_QUOTED) || prev != '\\') { +#else /* __U_BOOT__ */ + if (prev != '\\') { +#endif /* End-of-line, and not a line continuation */ if (strcmp(heredoc.data + past_EOL, word) == 0) { heredoc.data[past_EOL] = '\0'; @@ -4483,7 +4788,11 @@ static char *fetch_till_str(o_string *as_string, ch = i_getch(input); if (ch != EOF) nommu_addchr(as_string, ch); +#ifndef __U_BOOT__ } while ((heredoc_flags & HEREDOC_SKIPTABS) && ch == '\t'); +#else /* __U_BOOT__ */ + } while (ch == '\t'); +#endif /* If this immediately ended the line, * go back to end-of-line checks. */ @@ -4520,6 +4829,7 @@ static char *fetch_till_str(o_string *as_string, prev = ch; } } +#endif /* !__U_BOOT__ */ /* Look at entire parse tree for not-yet-loaded REDIRECT_HEREDOCs * and load them all. There should be exactly heredoc_cnt of them. @@ -4539,10 +4849,13 @@ static int fetch_heredocs(o_string *as_string, struct pipe *pi, int heredoc_cnt, cmd->argv ? cmd->argv[0] : "NONE" ); for (i = 0; i < pi->num_cmds; i++) { +#ifndef __U_BOOT__ struct redir_struct *redir = cmd->redirects; +#endif /* !__U_BOOT__ */ debug_printf_heredoc("fetch_heredocs: %d cmd argv0:'%s'\n", i, cmd->argv ? cmd->argv[0] : "NONE"); +#ifndef __U_BOOT__ while (redir) { if (redir->rd_type == REDIRECT_HEREDOC) { char *p; @@ -4561,6 +4874,7 @@ static int fetch_heredocs(o_string *as_string, struct pipe *pi, int heredoc_cnt, } redir = redir->next; } +#endif /* !__U_BOOT__ */ if (cmd->group) { //bb_error_msg("%s:%u heredoc_cnt:%d", __func__, __LINE__, heredoc_cnt); heredoc_cnt = fetch_heredocs(as_string, cmd->group, heredoc_cnt, input); @@ -4651,13 +4965,17 @@ static int parse_group(struct parse_context *ctx, } #endif +#ifndef __U_BOOT__ IF_HUSH_FUNCTIONS(skip:) +#endif /* !__U_BOOT__ */ endch = '}'; if (ch == '(') { endch = ')'; +#ifndef __U_BOOT__ IF_HUSH_FUNCTIONS(if (command->cmd_type != CMD_FUNCDEF)) command->cmd_type = CMD_SUBSHELL; +#endif /* !__U_BOOT__ */ } else { /* bash does not allow "{echo...", requires whitespace */ ch = i_peek(input); @@ -4725,6 +5043,7 @@ static int parse_group(struct parse_context *ctx, #undef as_string } +#ifndef __U_BOOT__ #if ENABLE_HUSH_TICK || ENABLE_FEATURE_SH_MATH || ENABLE_HUSH_DOLLAR_OPS /* Subroutines for copying $(...) and `...` things */ /* '...' */ @@ -4754,6 +5073,7 @@ static int add_till_single_quote_dquoted(o_string *dest, struct in_str *input) o_addqchr(dest, ch); } } + /* "...\"...`..`...." - do we need to handle "...$(..)..." too? */ static int add_till_backquote(o_string *dest, struct in_str *input, int in_dquote); static int add_till_double_quote(o_string *dest, struct in_str *input) @@ -4780,6 +5100,8 @@ static int add_till_double_quote(o_string *dest, struct in_str *input) //if (ch == '$') ... } } + + /* Process `cmd` - copy contents until "`" is seen. Complicated by * \` quoting. * "Within the backquoted style of command substitution, backslash @@ -5014,6 +5336,7 @@ static int parse_dollar_squote(o_string *as_string, o_string *dest, struct in_st #else # #define parse_dollar_squote(as_string, dest, input) 0 #endif /* BASH_DOLLAR_SQUOTE */ +#endif /* !__U_BOOT__ */ /* Return code: 0 for OK, 1 for syntax error */ #if BB_MMU @@ -5056,8 +5379,10 @@ static int parse_dollar(o_string *as_string, o_addchr(dest, ch | quote_mask); o_addchr(dest, SPECIAL_VAR_SYMBOL); } else switch (ch) { +#ifndef __U_BOOT__ case '$': /* pid */ case '!': /* last bg pid */ +#endif /* !__U_BOOT__ */ case '?': /* last exit code */ case '#': /* number of args */ case '*': /* args */ @@ -5132,7 +5457,9 @@ static int parse_dollar(o_string *as_string, break; if (!isalnum(ch) && ch != '_') { unsigned end_ch; +#ifndef __U_BOOT__ unsigned char last_ch; +#endif /* !__U_BOOT__ */ /* handle parameter expansions * http://www.opengroup.org/onlinepubs/009695399/utilities/xcu_chap02.html#tag_02_06_02 */ @@ -5151,6 +5478,7 @@ static int parse_dollar(o_string *as_string, eat_until_closing: /* Eat everything until closing '}' (or ':') */ end_ch = '}'; +#ifndef __U_BOOT__ if (BASH_SUBSTR && ch == ':' && !strchr(MINUS_PLUS_EQUAL_QUESTION, i_peek(input)) @@ -5169,6 +5497,7 @@ static int parse_dollar(o_string *as_string, } end_ch = '}' * 0x100 + '/'; } +#endif /* !__U_BOOT__ */ o_addchr(dest, ch); /* The pattern can't be empty. * IOW: if the first char after "${v//" is a slash, @@ -5179,21 +5508,28 @@ static int parse_dollar(o_string *as_string, if (i_peek(input) == '/') { o_addchr(dest, i_getch(input)); } +#ifndef __U_BOOT__ again: +#endif /* !__U_BOOT__ */ if (!BB_MMU) pos = dest->length; #if ENABLE_HUSH_DOLLAR_OPS +#ifndef __U_BOOT__ last_ch = add_till_closing_bracket(dest, input, end_ch); if (last_ch == 0) /* error? */ return 0; +#endif /* !__U_BOOT__ */ #else # error Simple code to only allow ${var} is not implemented #endif if (as_string) { o_addstr(as_string, dest->data + pos); +#ifndef __U_BOOT__ o_addchr(as_string, last_ch); +#endif /* !__U_BOOT__ */ } +#ifndef __U_BOOT__ if ((BASH_SUBSTR || BASH_PATTERN_SUBST) && (end_ch & 0xff00) ) { @@ -5212,6 +5548,7 @@ static int parse_dollar(o_string *as_string, o_addstr(dest, "999999999"); } /* else: it's ${var/[/]pattern} */ } +#endif /* !__U_BOOT__ */ break; } len_single_ch = 0; /* it can't be ${#C} op */ @@ -5415,8 +5752,10 @@ static struct pipe *parse_stream(char **pstring, const char *is_special; int ch; int next; +#ifndef __U_BOOT__ int redir_fd; redir_type redir_style; +#endif /* !__U_BOOT__ */ ch = i_getch(input); debug_printf_parse(": ch=%c (%d) escape=%d\n", @@ -5506,8 +5845,10 @@ static struct pipe *parse_stream(char **pstring, if (ch == '\'') { ctx.word.has_quoted_part = 1; next = i_getch(input); +#ifndef __U_BOOT__ if (next == '\'' && !ctx.pending_redirect) goto insert_empty_quoted_str_marker; +#endif /* !__U_BOOT__ */ ch = next; while (1) { @@ -5534,7 +5875,11 @@ static struct pipe *parse_stream(char **pstring, next = i_peek_and_eat_bkslash_nl(input); is_special = "{}<>&|();#" /* special outside of "str" */ +#ifndef __U_BOOT__ "$\"" IF_HUSH_TICK("`") /* always special */ +#else /* __U_BOOT__ */ + "$\"" +#endif /* __U_BOOT__ */ SPECIAL_VAR_SYMBOL_STR; #if defined(CMD_TEST2_SINGLEWORD_NOGLOB) if (ctx.command->cmd_type == CMD_TEST2_SINGLEWORD_NOGLOB) { @@ -5649,7 +5994,11 @@ static struct pipe *parse_stream(char **pstring, * } is an ordinary char in this case, even inside { cmd; } * Pathological example: { ""}; } should exec "}" cmd */ +#ifndef __U_BOOT__ if (ch == '}') { +#else /* __U_BOOT__ */ + if (ch == '}' || ch == ')') { +#endif /* __U_BOOT__ */ if (ctx.word.length != 0 /* word} */ || ctx.word.has_quoted_part /* ""} */ ) { @@ -5725,6 +6074,7 @@ static struct pipe *parse_stream(char **pstring, /* Catch <, > before deciding whether this word is * an assignment. a=1 2>z b=2: b=2 is still assignment */ switch (ch) { +#ifndef __U_BOOT__ case '>': redir_fd = redirect_opt_num(&ctx.word); if (done_word(&ctx)) { @@ -5771,6 +6121,7 @@ static struct pipe *parse_stream(char **pstring, if (parse_redirect(&ctx, redir_fd, redir_style, input)) goto parse_error_exitcode1; continue; /* get next char */ +#endif /* !__U_BOOT__ */ case '#': if (ctx.word.length == 0 && !ctx.word.has_quoted_part) { /* skip "#comment" */ @@ -5798,8 +6149,10 @@ static struct pipe *parse_stream(char **pstring, skip_end_trigger: if (ctx.is_assignment == MAYBE_ASSIGNMENT +#ifndef __U_BOOT__ /* check that we are not in word in "a=1 2>word b=1": */ && !ctx.pending_redirect +#endif /* !__U_BOOT__ */ ) { /* ch is a special char and thus this word * cannot be an assignment */ @@ -5821,8 +6174,10 @@ static struct pipe *parse_stream(char **pstring, o_addchr(&ctx.word, ch); continue; /* get next char */ case '$': +#ifndef __U_BOOT__ if (parse_dollar_squote(&ctx.as_string, &ctx.word, input)) continue; /* get next char */ +#endif /* !__U_BOOT__ */ if (!parse_dollar(&ctx.as_string, &ctx.word, input, /*quote_mask:*/ 0)) { debug_printf_parse("parse_stream parse error: " "parse_dollar returned 0 (error)\n"); @@ -5831,9 +6186,15 @@ static struct pipe *parse_stream(char **pstring, continue; /* get next char */ case '"': ctx.word.has_quoted_part = 1; +#ifndef __U_BOOT__ if (next == '"' && !ctx.pending_redirect) { +#else /* __U_BOOT__ */ + if (next == '"') { +#endif /* __U_BOOT__ */ i_getch(input); /* eat second " */ +#ifndef __U_BOOT__ insert_empty_quoted_str_marker: +#endif /* !__U_BOOT__ */ nommu_addchr(&ctx.as_string, next); o_addchr(&ctx.word, SPECIAL_VAR_SYMBOL); o_addchr(&ctx.word, SPECIAL_VAR_SYMBOL); @@ -6140,6 +6501,7 @@ static int expand_on_ifs(o_string *output, int n, const char *str) return n; } +#ifndef __U_BOOT__ /* Helper to expand $((...)) and heredoc body. These act as if * they are in double quotes, with the exception that they are not :). * Just the rules are similar: "expand only $var and `cmd`" @@ -6440,7 +6802,9 @@ static int encode_then_append_var_plusminus(o_string *output, int n, o_free(&dest); return n; } +#endif /* !__U_BOOT__ */ +#ifndef __U_BOOT__ #if ENABLE_FEATURE_SH_MATH static arith_t expand_and_evaluate_arith(const char *arg, const char **errmsg_p) { @@ -6461,7 +6825,9 @@ static arith_t expand_and_evaluate_arith(const char *arg, const char **errmsg_p) return res; } #endif +#endif /* !__U_BOOT__ */ +#ifndef __U_BOOT__ #if BASH_PATTERN_SUBST /* ${var/[/]pattern[/repl]} helpers */ static char *strstr_pattern(char *val, const char *pattern, int *size) @@ -6529,6 +6895,7 @@ static char *replace_pattern(char *val, const char *pattern, const char *repl, c return result; } #endif /* BASH_PATTERN_SUBST */ +#endif /* !__U_BOOT__ */ static int append_str_maybe_ifs_split(o_string *output, int n, int first_ch, const char *val) @@ -6593,6 +6960,7 @@ static NOINLINE int expand_one_var(o_string *output, int n, exp_saveptr = var+1 + strcspn(var+1, VAR_ENCODED_SUBST_OPS); } exp_op = exp_save = *exp_saveptr; +#ifndef __U_BOOT__ if (exp_op) { exp_word = exp_saveptr + 1; if (exp_op == ':') { @@ -6608,29 +6976,37 @@ static NOINLINE int expand_one_var(o_string *output, int n, } *exp_saveptr = '\0'; } /* else: it's not an expansion op, but bare ${var} */ +#endif /* !__U_BOOT__ */ } /* Look up the variable in question */ if (isdigit(var[0])) { /* parse_dollar should have vetted var for us */ +#ifndef __U_BOOT__ int nn = xatoi_positive(var); +#else /* __U_BOOT__ */ + int nn = simple_strtoul(var, NULL, 10); +#endif /* __U_BOOT__ */ if (nn < G.global_argc) val = G.global_argv[nn]; /* else val remains NULL: $N with too big N */ } else { switch (var[0]) { +#ifndef __U_BOOT__ case '$': /* pid */ val = utoa(G.root_pid); break; case '!': /* bg pid */ val = G.last_bg_pid ? utoa(G.last_bg_pid) : ""; break; +#endif /* !__U_BOOT__ */ case '?': /* exitcode */ val = utoa(G.last_exitcode); break; case '#': /* argc */ val = utoa(G.global_argc ? G.global_argc-1 : 0); break; +#ifndef __U_BOOT__ case '-': { /* active options */ /* Check set_mode() to see what option chars we support */ char *cp; @@ -6652,11 +7028,13 @@ static NOINLINE int expand_one_var(o_string *output, int n, *cp = '\0'; break; } +#endif /* !__U_BOOT__ */ default: val = get_local_var_value(var); } } +#ifndef __U_BOOT__ /* Handle any expansions */ if (exp_op == 'L') { reinit_unicode_for_hush(); @@ -6936,6 +7314,7 @@ static NOINLINE int expand_one_var(o_string *output, int n, *exp_saveptr = exp_save; } /* if (exp_op) */ +#endif /* !__U_BOOT__ */ arg[0] = arg0; *pp = p; @@ -7248,6 +7627,7 @@ static char* expand_strvec_to_string(char **argv) } #endif +#ifndef __U_BOOT__ static char **expand_assignments(char **argv, int count) { int i; @@ -7289,7 +7669,9 @@ static void switch_off_special_sigs(unsigned mask) install_sighandler(sig, SIG_DFL); } } +#endif /* !__U_BOOT__ */ +#ifndef __U_BOOT__ #if BB_MMU /* never called */ void re_execute_shell(char ***to_free, const char *s, @@ -7479,6 +7861,7 @@ static void re_execute_shell(char ***to_free, const char *s, } #endif /* !BB_MMU */ +#endif /* !__U_BOOT__ */ static int run_and_free_list(struct pipe *pi); @@ -7537,6 +7920,7 @@ static void parse_and_run_stream(struct in_str *inp, int end_trigger) } } +#ifndef __U_BOOT__ static void parse_and_run_string(const char *s) { struct in_str input; @@ -7546,18 +7930,30 @@ static void parse_and_run_string(const char *s) parse_and_run_stream(&input, '\0'); //IF_HUSH_LINENO_VAR(G.parse_lineno = sv;) } +#endif /* !__U_BOOT__ */ +#ifndef __U_BOOT__ static void parse_and_run_file(HFILE *fp) +#else /* __U_BOOT__ */ +void parse_and_run_file(void) +#endif /* __U_BOOT__ */ { struct in_str input; +#ifndef __U_BOOT__ IF_HUSH_LINENO_VAR(unsigned sv = G.parse_lineno;) IF_HUSH_LINENO_VAR(G.parse_lineno = 1;) setup_file_in_str(&input, fp); +#else /* __U_BOOT__ */ + setup_file_in_str(&input); +#endif /* __U_BOOT__ */ parse_and_run_stream(&input, ';'); +#ifndef __U_BOOT__ IF_HUSH_LINENO_VAR(G.parse_lineno = sv;) +#endif /* !__U_BOOT__ */ } +#ifndef __U_BOOT__ #if ENABLE_HUSH_TICK static int generate_stream_from_string(const char *s, pid_t *pid_p) { @@ -8163,7 +8559,9 @@ static const char * FAST_FUNC get_builtin_name(int i) return NULL; } #endif +#endif /* !__U_BOOT__ */ +#ifndef __U_BOOT__ static void remove_nested_vars(void) { struct variable *cur; @@ -8215,6 +8613,7 @@ static void leave_var_nest_level(void) remove_nested_vars(); } +#endif /* __U_BOOT__ */ #if ENABLE_HUSH_FUNCTIONS static struct function **find_function_slot(const char *name) @@ -8399,6 +8798,7 @@ static int run_function(const struct function *funcp, char **argv) #endif /* ENABLE_HUSH_FUNCTIONS */ +#ifndef __U_BOOT__ #if BB_MMU #define exec_builtin(to_free, x, argv) \ exec_builtin(x, argv) @@ -8431,8 +8831,10 @@ static void exec_builtin(char ***to_free, argv); #endif } +#endif /* !__U_BOOT__ */ +#ifndef __U_BOOT__ static void execvp_or_die(char **argv) NORETURN; static void execvp_or_die(char **argv) { @@ -8514,7 +8916,9 @@ static void dump_cmd_in_x_mode(char **argv) #else # define dump_cmd_in_x_mode(argv) ((void)0) #endif +#endif /* !__U_BOOT__ */ +#ifndef __U_BOOT__ #if ENABLE_HUSH_COMMAND static void if_command_vV_print_and_exit(char opt_vV, char *cmd, const char *explanation) { @@ -8540,6 +8944,7 @@ static void if_command_vV_print_and_exit(char opt_vV, char *cmd, const char *exp #else # define if_command_vV_print_and_exit(a,b,c) ((void)0) #endif +#endif /* !__U_BOOT__ */ #if BB_MMU #define pseudo_exec_argv(nommu_save, argv, assignment_cnt, argv_expanded) \ @@ -8548,6 +8953,7 @@ static void if_command_vV_print_and_exit(char opt_vV, char *cmd, const char *exp pseudo_exec(command, argv_expanded) #endif +#ifndef __U_BOOT__ /* Called after [v]fork() in run_pipe, or from builtin_exec. * Never returns. * Don't exit() here. If you don't exec, use _exit instead. @@ -9186,18 +9592,34 @@ static int redirect_and_varexp_helper( return setup_redirects(command, sqp); } +#endif /* !__U_BOOT__ */ + static NOINLINE int run_pipe(struct pipe *pi) { static const char *const null_ptr = NULL; int cmd_no; +#ifndef __U_BOOT__ int next_infd; +#endif /* !__U_BOOT__ */ struct command *command; char **argv_expanded; char **argv; +#ifndef __U_BOOT__ struct squirrel *squirrel = NULL; +#endif /* !__U_BOOT__ */ int rcode; +#ifdef __U_BOOT__ + /* + * Set rcode here to avoid returning a garbage value in the middle of + * the function. + * Also, if an error occurs, rcode value would be changed and last + * return will signal the error. + */ + rcode = 0; +#endif /* __U_BOOT__ */ + debug_printf_exec("run_pipe start: members:%d\n", pi->num_cmds); debug_enter(); @@ -9230,11 +9652,14 @@ static NOINLINE int run_pipe(struct pipe *pi) G.ifs_whitespace = (char*)G.ifs; } +#ifndef __U_BOOT__ IF_HUSH_JOB(pi->pgrp = -1;) pi->stopped_cmds = 0; +#endif /* !__U_BOOT__ */ command = &pi->cmds[0]; argv_expanded = NULL; +#ifndef __U_BOOT__ if (pi->num_cmds != 1 || pi->followup == PIPE_BG || command->cmd_type == CMD_SUBSHELL @@ -9243,6 +9668,7 @@ static NOINLINE int run_pipe(struct pipe *pi) } pi->alive_cmds = 1; +#endif /* !__U_BOOT__ */ debug_printf_exec(": group:%p argv:'%s'\n", command->group, command->argv ? command->argv[0] : "NONE"); @@ -9274,6 +9700,7 @@ static NOINLINE int run_pipe(struct pipe *pi) /* { list } */ debug_printf_exec("non-subshell group\n"); rcode = 1; /* exitcode if redir failed */ +#ifndef __U_BOOT__ if (setup_redirects(command, &squirrel) == 0) { debug_printf_exec(": run_list\n"); //FIXME: we need to pass squirrel down into run_list() @@ -9286,6 +9713,7 @@ static NOINLINE int run_pipe(struct pipe *pi) } restore_redirects(squirrel); IF_HAS_KEYWORDS(if (pi->pi_inverted) rcode = !rcode;) +#endif /* !__U_BOOT__ */ debug_leave(); debug_printf_exec("run_pipe: return %d\n", rcode); return rcode; @@ -9293,10 +9721,12 @@ static NOINLINE int run_pipe(struct pipe *pi) argv = command->argv ? command->argv : (char **) &null_ptr; { +#ifndef __U_BOOT__ const struct built_in_command *x; IF_HUSH_FUNCTIONS(const struct function *funcp;) IF_NOT_HUSH_FUNCTIONS(enum { funcp = 0 };) struct variable **sv_shadowed; +#endif /* !__U_BOOT__ */ struct variable *old_vars; #if ENABLE_HUSH_LINENO_VAR @@ -9311,8 +9741,10 @@ static NOINLINE int run_pipe(struct pipe *pi) unsigned i; G.expand_exitcode = 0; only_assignments: +#ifndef __U_BOOT__ rcode = setup_redirects(command, &squirrel); restore_redirects(squirrel); +#endif /* !__U_BOOT__ */ /* Set shell variables */ i = 0; @@ -9335,7 +9767,11 @@ static NOINLINE int run_pipe(struct pipe *pi) } #endif debug_printf_env("set shell var:'%s'->'%s'\n", *argv, p); +#ifndef __U_BOOT__ if (set_local_var(p, /*flag:*/ 0)) { +#else /* __U_BOOT__ */ + if (set_local_var_modern(p, /*flag:*/ 0)) { +#endif /* assignment to readonly var / putenv error? */ rcode = 1; } @@ -9378,6 +9814,7 @@ static NOINLINE int run_pipe(struct pipe *pi) } old_vars = NULL; +#ifndef __U_BOOT__ sv_shadowed = G.shadowed_vars_pp; /* Check if argv[0] matches any functions (this goes before bltins) */ @@ -9501,8 +9938,10 @@ static NOINLINE int run_pipe(struct pipe *pi) debug_leave(); debug_printf_exec("run_pipe return %d\n", rcode); return rcode; +#endif /* !__U_BOOT__ */ } +#ifndef __U_BOOT__ must_fork: /* NB: argv_expanded may already be created, and that * might include `cmd` runs! Do not rerun it! We *must* @@ -9511,9 +9950,11 @@ static NOINLINE int run_pipe(struct pipe *pi) /* Going to fork a child per each pipe member */ pi->alive_cmds = 0; next_infd = 0; +#endif /* !__U_BOOT__ */ cmd_no = 0; while (cmd_no < pi->num_cmds) { +#ifndef __U_BOOT__ struct fd_pair pipefds; #if !BB_MMU int sv_var_nest_level = G.var_nest_level; @@ -9522,6 +9963,7 @@ static NOINLINE int run_pipe(struct pipe *pi) nommu_save.argv = NULL; nommu_save.argv_from_re_execing = NULL; #endif +#endif /* !__U_BOOT__ */ command = &pi->cmds[cmd_no]; cmd_no++; if (command->argv) { @@ -9531,6 +9973,7 @@ static NOINLINE int run_pipe(struct pipe *pi) debug_printf_exec(": pipe member with no argv\n"); } +#ifndef __U_BOOT__ /* pipes are inserted between pairs of commands */ pipefds.rd = 0; pipefds.wr = 1; @@ -9633,17 +10076,30 @@ static NOINLINE int run_pipe(struct pipe *pi) close(pipefds.wr); /* Pass read (output) pipe end to next iteration */ next_infd = pipefds.rd; +#else /* __U_BOOT__ */ + /* Process the command */ + rcode = cmd_process(G.do_repeat ? CMD_FLAG_REPEAT : 0, + command->argc, command->argv, + &(G.flag_repeat), NULL); +#endif /* __U_BOOT__ */ } +#ifndef __U_BOOT__ if (!pi->alive_cmds) { debug_leave(); debug_printf_exec("run_pipe return 1 (all forks failed, no children)\n"); return 1; } +#endif /* __U_BOOT__ */ debug_leave(); +#ifndef __U_BOOT__ debug_printf_exec("run_pipe return -1 (%u children started)\n", pi->alive_cmds); return -1; +#else /* __U_BOOT__ */ + debug_printf_exec("run_pipe return %d\n", rcode); + return rcode; +#endif /* __U_BOOT__ */ } /* NB: called by pseudo_exec, and therefore must not modify any @@ -9670,8 +10126,10 @@ static int run_list(struct pipe *pi) smallint last_rword; /* ditto */ #endif +#ifndef __U_BOOT__ debug_printf_exec("run_list start lvl %d\n", G.run_list_level); debug_enter(); +#endif /* !__U_BOOT__ */ #if ENABLE_HUSH_LOOPS /* Check syntax for "for" */ @@ -9719,10 +10177,15 @@ static int run_list(struct pipe *pi) rcode = G.last_exitcode; /* Go through list of pipes, (maybe) executing them. */ +#ifndef __U_BOOT__ for (; pi; pi = IF_HUSH_LOOPS(rword == RES_DONE ? loop_top : ) pi->next) { +#else /* __U_BOOT__ */ + for (; pi; pi = pi->next) { +#endif /* __U_BOOT__ */ int r; int sv_errexit_depth; +#ifndef __U_BOOT__ if (G.flag_SIGINT) break; if (G_flag_return_in_progress == 1) @@ -9732,6 +10195,7 @@ static int run_list(struct pipe *pi) debug_printf_exec(": rword=%d cond_code=%d last_rword=%d\n", rword, cond_code, last_rword); +#endif /* !__U_BOOT__ */ sv_errexit_depth = G.errexit_depth; if ( #if ENABLE_HUSH_IF @@ -9885,8 +10349,10 @@ static int run_list(struct pipe *pi) * OTOH, in non-interactive shell this is useless * and only leads to extra job checks */ if (pi->num_cmds == 0) { +#ifndef __U_BOOT__ if (G_interactive_fd) goto check_jobs_and_continue; +#endif /* !__U_BOOT__ */ continue; } @@ -9895,20 +10361,33 @@ static int run_list(struct pipe *pi) * after run_pipe to collect any background children, * even if list execution is to be stopped. */ debug_printf_exec(": run_pipe with %d members\n", pi->num_cmds); +#ifndef __U_BOOT__ #if ENABLE_HUSH_LOOPS G.flag_break_continue = 0; #endif +#endif /* !__U_BOOT__ */ rcode = r = run_pipe(pi); /* NB: rcode is a smalluint, r is int */ +#ifdef __U_BOOT__ + if (r == -2) { + /* -2 indicates exit was called, so we need to quit now. */ + G.last_exitcode = rcode; + + break; + } +#endif if (r != -1) { /* We ran a builtin, function, or group. * rcode is already known * and we don't need to wait for anything. */ debug_printf_exec(": builtin/func exitcode %d\n", rcode); G.last_exitcode = rcode; +#ifndef __U_BOOT__ check_and_run_traps(); +#endif /* !__U_BOOT__ */ #if ENABLE_HUSH_TRAP && ENABLE_HUSH_FUNCTIONS rcode = G.last_exitcode; /* "return" in trap can change it, read back */ #endif +#ifndef __U_BOOT__ #if ENABLE_HUSH_LOOPS /* Was it "break" or "continue"? */ if (G.flag_break_continue) { @@ -9934,6 +10413,7 @@ static int run_list(struct pipe *pi) checkjobs(NULL, 0 /*(no pid to wait for)*/); break; } + } else if (pi->followup == PIPE_BG) { /* What does bash do with attempts to background builtins? */ /* even bash 3.2 doesn't do that well with nested bg: @@ -9969,13 +10449,18 @@ static int run_list(struct pipe *pi) rcode = G.last_exitcode; /* "return" in trap can change it, read back */ #endif } +#endif /* !__U_BOOT__ */ +#ifndef __U_BOOT__ /* Handle "set -e" */ if (rcode != 0 && G.o_opt[OPT_O_ERREXIT]) { debug_printf_exec("ERREXIT:1 errexit_depth:%d\n", G.errexit_depth); if (G.errexit_depth == 0) hush_exit(rcode); } +#else /* __U_BOOT__ */ + } /* if (r != -1) */ +#endif /* __U_BOOT__ */ G.errexit_depth = sv_errexit_depth; /* Analyze how result affects subsequent commands */ @@ -9983,8 +10468,10 @@ static int run_list(struct pipe *pi) if (rword == RES_IF || rword == RES_ELIF) cond_code = rcode; #endif +#ifndef __U_BOOT__ check_jobs_and_continue: checkjobs(NULL, 0 /*(no pid to wait for)*/); +#endif /* !__U_BOOT__ */ dont_check_jobs_but_continue: ; #if ENABLE_HUSH_LOOPS /* Beware of "while false; true; do ..."! */ @@ -10021,8 +10508,10 @@ static int run_list(struct pipe *pi) #if ENABLE_HUSH_CASE free(case_word); #endif +#ifndef __U_BOOT__ debug_leave(); debug_printf_exec("run_list lvl %d return %d\n", G.run_list_level + 1, rcode); +#endif /* !__U_BOOT__ */ return rcode; } @@ -10031,10 +10520,14 @@ static int run_and_free_list(struct pipe *pi) { int rcode = 0; debug_printf_exec("run_and_free_list entered\n"); +#ifndef __U_BOOT__ if (!G.o_opt[OPT_O_NOEXEC]) { +#endif /* !__U_BOOT__ */ debug_printf_exec(": run_list: 1st pipe with %d cmds\n", pi->num_cmds); rcode = run_list(pi); +#ifndef __U_BOOT__ } +#endif /* !__U_BOOT__ */ /* free_pipe_list has the side effect of clearing memory. * In the long run that function can be merged with run_list, * but doing that now would hobble the debugging effort. */ @@ -10044,6 +10537,7 @@ static int run_and_free_list(struct pipe *pi) } +#ifndef __U_BOOT__ static void install_sighandlers(unsigned mask) { sighandler_t old_handler; @@ -10460,6 +10954,7 @@ int hush_main(int argc, char **argv) } } +#ifndef __U_BOOT__ /* -c takes effect *after* -l */ if (G.opt_c) { /* Possibilities: @@ -10536,6 +11031,7 @@ int hush_main(int argc, char **argv) /* "implicit" -s: bare interactive hush shows 's' in $- */ G.opt_s = 1; +#endif /* __U_BOOT__ */ /* Up to here, shell was non-interactive. Now it may become one. * NB: don't forget to (re)run install_special_sighandlers() as needed. */ @@ -10681,6 +11177,7 @@ int hush_main(int argc, char **argv) } + /* * Built-ins */ @@ -12160,3 +12657,4 @@ static int FAST_FUNC builtin_memleak(char **argv UNUSED_PARAM) return l; } #endif +#endif /* !__U_BOOT__ */ |