diff options
Diffstat (limited to 'shell/ash.c')
| -rw-r--r-- | shell/ash.c | 95 |
1 files changed, 46 insertions, 49 deletions
diff --git a/shell/ash.c b/shell/ash.c index b11f365..430e42a 100644 --- a/shell/ash.c +++ b/shell/ash.c @@ -29,14 +29,14 @@ //config:config ASH_OPTIMIZE_FOR_SIZE //config: bool "Optimize for size instead of speed" //config: default y -//config: depends on ASH +//config: depends on ASH || SH_IS_ASH || BASH_IS_ASH //config: help //config: Compile ash for reduced size at the price of speed. //config: //config:config ASH_INTERNAL_GLOB //config: bool "Use internal glob() implementation" //config: default y # Y is bigger, but because of uclibc glob() bug, let Y be default for now -//config: depends on ASH +//config: depends on ASH || SH_IS_ASH || BASH_IS_ASH //config: help //config: Do not use glob() function from libc, use internal implementation. //config: Use this if you are getting "glob.h: No such file or directory" @@ -45,7 +45,7 @@ //config:config ASH_RANDOM_SUPPORT //config: bool "Pseudorandom generator and $RANDOM variable" //config: default y -//config: depends on ASH +//config: depends on ASH || SH_IS_ASH || BASH_IS_ASH //config: help //config: Enable pseudorandom generator and dynamic variable "$RANDOM". //config: Each read of "$RANDOM" will generate a new pseudorandom value. @@ -56,7 +56,7 @@ //config:config ASH_EXPAND_PRMT //config: bool "Expand prompt string" //config: default y -//config: depends on ASH +//config: depends on ASH || SH_IS_ASH || BASH_IS_ASH //config: help //config: "PS#" may contain volatile content, such as backquote commands. //config: This option recreates the prompt string from the environment @@ -65,70 +65,70 @@ //config:config ASH_BASH_COMPAT //config: bool "bash-compatible extensions" //config: default y -//config: depends on ASH +//config: depends on ASH || SH_IS_ASH || BASH_IS_ASH //config: help //config: Enable bash-compatible extensions. //config: //config:config ASH_IDLE_TIMEOUT //config: bool "Idle timeout variable" //config: default n -//config: depends on ASH +//config: depends on ASH || SH_IS_ASH || BASH_IS_ASH //config: help //config: Enables bash-like auto-logout after $TMOUT seconds of idle time. //config: //config:config ASH_JOB_CONTROL //config: bool "Job control" //config: default y -//config: depends on ASH +//config: depends on ASH || SH_IS_ASH || BASH_IS_ASH //config: help //config: Enable job control in the ash shell. //config: //config:config ASH_ALIAS //config: bool "Alias support" //config: default y -//config: depends on ASH +//config: depends on ASH || SH_IS_ASH || BASH_IS_ASH //config: help //config: Enable alias support in the ash shell. //config: //config:config ASH_GETOPTS //config: bool "Builtin getopt to parse positional parameters" //config: default y -//config: depends on ASH +//config: depends on ASH || SH_IS_ASH || BASH_IS_ASH //config: help //config: Enable support for getopts builtin in ash. //config: //config:config ASH_BUILTIN_ECHO //config: bool "Builtin version of 'echo'" //config: default y -//config: depends on ASH +//config: depends on ASH || SH_IS_ASH || BASH_IS_ASH //config: help //config: Enable support for echo builtin in ash. //config: //config:config ASH_BUILTIN_PRINTF //config: bool "Builtin version of 'printf'" //config: default y -//config: depends on ASH +//config: depends on ASH || SH_IS_ASH || BASH_IS_ASH //config: help //config: Enable support for printf builtin in ash. //config: //config:config ASH_BUILTIN_TEST //config: bool "Builtin version of 'test'" //config: default y -//config: depends on ASH +//config: depends on ASH || SH_IS_ASH || BASH_IS_ASH //config: help //config: Enable support for test builtin in ash. //config: //config:config ASH_HELP //config: bool "help builtin" //config: default y -//config: depends on ASH +//config: depends on ASH || SH_IS_ASH || BASH_IS_ASH //config: help //config: Enable help builtin in ash. //config: //config:config ASH_CMDCMD //config: bool "'command' command to override shell builtins" //config: default y -//config: depends on ASH +//config: depends on ASH || SH_IS_ASH || BASH_IS_ASH //config: help //config: Enable support for the ash 'command' builtin, which allows //config: you to run the specified command with the specified arguments, @@ -137,15 +137,17 @@ //config:config ASH_MAIL //config: bool "Check for new mail on interactive shells" //config: default y -//config: depends on ASH +//config: depends on ASH || SH_IS_ASH || BASH_IS_ASH //config: help //config: Enable "check for new mail" function in the ash shell. //applet:IF_ASH(APPLET(ash, BB_DIR_BIN, BB_SUID_DROP)) -//applet:IF_FEATURE_SH_IS_ASH(APPLET_ODDNAME(sh, ash, BB_DIR_BIN, BB_SUID_DROP, sh)) -//applet:IF_FEATURE_BASH_IS_ASH(APPLET_ODDNAME(bash, ash, BB_DIR_BIN, BB_SUID_DROP, bash)) +//applet:IF_SH_IS_ASH(APPLET_ODDNAME(sh, ash, BB_DIR_BIN, BB_SUID_DROP, ash)) +//applet:IF_BASH_IS_ASH(APPLET_ODDNAME(bash, ash, BB_DIR_BIN, BB_SUID_DROP, ash)) //kbuild:lib-$(CONFIG_ASH) += ash.o ash_ptr_hack.o shell_common.o +//kbuild:lib-$(CONFIG_SH_IS_ASH) += ash.o ash_ptr_hack.o shell_common.o +//kbuild:lib-$(CONFIG_BASH_IS_ASH) += ash.o ash_ptr_hack.o shell_common.o //kbuild:lib-$(CONFIG_ASH_RANDOM_SUPPORT) += random.o /* @@ -200,7 +202,7 @@ #include "unicode.h" #include "shell_common.h" -#if ENABLE_SH_MATH_SUPPORT +#if ENABLE_FEATURE_SH_MATH # include "math.h" #endif #if ENABLE_ASH_RANDOM_SUPPORT @@ -2144,6 +2146,7 @@ lookupvar(const char *name) return NULL; } +#if ENABLE_UNICODE_SUPPORT static void reinit_unicode_for_ash(void) { @@ -2160,6 +2163,9 @@ reinit_unicode_for_ash(void) reinit_unicode(s); } } +#else +# define reinit_unicode_for_ash() ((void)0) +#endif /* * Search the environment of a builtin command. @@ -2741,7 +2747,7 @@ pwdcmd(int argc UNUSED_PARAM, char **argv UNUSED_PARAM) #define USE_SIT_FUNCTION ENABLE_ASH_OPTIMIZE_FOR_SIZE -#if ENABLE_SH_MATH_SUPPORT +#if ENABLE_FEATURE_SH_MATH # define SIT_ITEM(a,b,c,d) (a | (b << 4) | (c << 8) | (d << 12)) #else # define SIT_ITEM(a,b,c,d) (a | (b << 4) | (c << 8)) @@ -3129,7 +3135,7 @@ static const uint8_t syntax_index_table[] ALIGN1 = { ({ \ if ((c) < 0 || (c) > (PEOF + ENABLE_ASH_ALIAS)) \ bb_error_msg_and_die("line:%d c:%d", __LINE__, (c)); \ - if ((syntax) < 0 || (syntax) > (2 + ENABLE_SH_MATH_SUPPORT)) \ + if ((syntax) < 0 || (syntax) > (2 + ENABLE_FEATURE_SH_MATH)) \ bb_error_msg_and_die("line:%d c:%d", __LINE__, (c)); \ ((S_I_T[syntax_index_table[c]] >> ((syntax)*4)) & 0xf); \ }) @@ -4487,7 +4493,7 @@ cmdputs(const char *s) case CTLBACKQ: str = "$(...)"; goto dostr; -#if ENABLE_SH_MATH_SUPPORT +#if ENABLE_FEATURE_SH_MATH case CTLARI: str = "$(("; goto dostr; @@ -5547,7 +5553,7 @@ redirectsafe(union node *redir, int flags) * We have to deal with backquotes, shell variables, and file metacharacters. */ -#if ENABLE_SH_MATH_SUPPORT +#if ENABLE_FEATURE_SH_MATH static arith_t ash_arith(const char *s) { @@ -5635,7 +5641,7 @@ static struct arglist exparg; /* * Our own itoa(). */ -#if !ENABLE_SH_MATH_SUPPORT +#if !ENABLE_FEATURE_SH_MATH /* cvtnum() is used even if math support is off (to prepare $? values and such) */ typedef long arith_t; # define ARITH_FMT "%ld" @@ -6148,7 +6154,7 @@ expbackq(union node *cmd, int flag) stackblock() + startloc)); } -#if ENABLE_SH_MATH_SUPPORT +#if ENABLE_FEATURE_SH_MATH /* * Expand arithmetic expression. Backup to start of expression, * evaluate, place result in (backed up) result, adjust string position. @@ -6230,7 +6236,7 @@ argstr(char *p, int flags, struct strlist *var_str_list) CTLESC, CTLVAR, CTLBACKQ, -#if ENABLE_SH_MATH_SUPPORT +#if ENABLE_FEATURE_SH_MATH CTLENDARI, #endif '\0' @@ -6266,7 +6272,7 @@ argstr(char *p, int flags, struct strlist *var_str_list) c = p[length]; if (c) { if (!(c & 0x80) - IF_SH_MATH_SUPPORT(|| c == CTLENDARI) + IF_FEATURE_SH_MATH(|| c == CTLENDARI) ) { /* c == '=' || c == ':' || c == CTLENDARI */ length++; @@ -6346,7 +6352,7 @@ argstr(char *p, int flags, struct strlist *var_str_list) expbackq(argbackq->n, flags | inquotes); argbackq = argbackq->next; goto start; -#if ENABLE_SH_MATH_SUPPORT +#if ENABLE_FEATURE_SH_MATH case CTLENDARI: p--; expari(flags | inquotes); @@ -9265,7 +9271,7 @@ static int helpcmd(int, char **) FAST_FUNC; #if MAX_HISTORY static int historycmd(int, char **) FAST_FUNC; #endif -#if ENABLE_SH_MATH_SUPPORT +#if ENABLE_FEATURE_SH_MATH static int letcmd(int, char **) FAST_FUNC; #endif static int readcmd(int, char **) FAST_FUNC; @@ -9345,7 +9351,7 @@ static const struct builtincmd builtintab[] = { { BUILTIN_REGULAR "jobs" , jobscmd }, { BUILTIN_REGULAR "kill" , killcmd }, #endif -#if ENABLE_SH_MATH_SUPPORT +#if ENABLE_FEATURE_SH_MATH { BUILTIN_NOSPEC "let" , letcmd }, #endif { BUILTIN_ASSIGN "local" , localcmd }, @@ -11394,13 +11400,13 @@ readtoken1(int c, int syntax, char *eofmark, int striptabs) smallint quotef; smallint dblquote; smallint oldstyle; - IF_SH_MATH_SUPPORT(smallint prevsyntax;) /* syntax before arithmetic */ + IF_FEATURE_SH_MATH(smallint prevsyntax;) /* syntax before arithmetic */ #if ENABLE_ASH_EXPAND_PRMT smallint pssyntax; /* we are expanding a prompt string */ #endif int varnest; /* levels of variables expansion */ - IF_SH_MATH_SUPPORT(int arinest;) /* levels of arithmetic expansion */ - IF_SH_MATH_SUPPORT(int parenlevel;) /* levels of parens in arithmetic */ + IF_FEATURE_SH_MATH(int arinest;) /* levels of arithmetic expansion */ + IF_FEATURE_SH_MATH(int parenlevel;) /* levels of parens in arithmetic */ int dqvarnest; /* levels of variables expansion within double quotes */ IF_ASH_BASH_COMPAT(smallint bash_dollar_squote = 0;) @@ -11408,7 +11414,7 @@ readtoken1(int c, int syntax, char *eofmark, int striptabs) startlinno = g_parsefile->linno; bqlist = NULL; quotef = 0; - IF_SH_MATH_SUPPORT(prevsyntax = 0;) + IF_FEATURE_SH_MATH(prevsyntax = 0;) #if ENABLE_ASH_EXPAND_PRMT pssyntax = (syntax == PSSYNTAX); if (pssyntax) @@ -11416,8 +11422,8 @@ readtoken1(int c, int syntax, char *eofmark, int striptabs) #endif dblquote = (syntax == DQSYNTAX); varnest = 0; - IF_SH_MATH_SUPPORT(arinest = 0;) - IF_SH_MATH_SUPPORT(parenlevel = 0;) + IF_FEATURE_SH_MATH(arinest = 0;) + IF_FEATURE_SH_MATH(parenlevel = 0;) dqvarnest = 0; STARTSTACKSTR(out); @@ -11524,7 +11530,7 @@ readtoken1(int c, int syntax, char *eofmark, int striptabs) } USTPUTC(c, out); break; -#if ENABLE_SH_MATH_SUPPORT +#if ENABLE_FEATURE_SH_MATH case CLP: /* '(' in arithmetic */ parenlevel++; USTPUTC(c, out); @@ -11575,7 +11581,7 @@ readtoken1(int c, int syntax, char *eofmark, int striptabs) } /* for (;;) */ endword: -#if ENABLE_SH_MATH_SUPPORT +#if ENABLE_FEATURE_SH_MATH if (syntax == ARISYNTAX) raise_error_syntax("missing '))'"); #endif @@ -11754,7 +11760,7 @@ parsesub: { } else if (c == '(') { /* $(command) or $((arith)) */ if (pgetc_eatbnl() == '(') { -#if ENABLE_SH_MATH_SUPPORT +#if ENABLE_FEATURE_SH_MATH PARSEARITH(); #else raise_error_syntax("you disabled math support for $((arith)) syntax"); @@ -12009,7 +12015,7 @@ parsebackq: { goto parsebackq_newreturn; } -#if ENABLE_SH_MATH_SUPPORT +#if ENABLE_FEATURE_SH_MATH /* * Parse an arithmetic expansion (indicate start of one and set state) */ @@ -13046,7 +13052,7 @@ timescmd(int argc UNUSED_PARAM, char **argv UNUSED_PARAM) return 0; } -#if ENABLE_SH_MATH_SUPPORT +#if ENABLE_FEATURE_SH_MATH /* * The let builtin. Partially stolen from GNU Bash, the Bourne Again SHell. * Copyright (C) 1987, 1989, 1991 Free Software Foundation, Inc. @@ -13301,15 +13307,6 @@ init(void) //usage:#define ash_full_usage "\n\n" //usage: "Unix shell interpreter" -//usage:#if ENABLE_FEATURE_SH_IS_ASH -//usage:# define sh_trivial_usage ash_trivial_usage -//usage:# define sh_full_usage ash_full_usage -//usage:#endif -//usage:#if ENABLE_FEATURE_BASH_IS_ASH -//usage:# define bash_trivial_usage ash_trivial_usage -//usage:# define bash_full_usage ash_full_usage -//usage:#endif - /* * Process the shell command line arguments. */ |