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ash: make internal globbing code selectable from config

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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2016-10-01 14:33:08 +02:00
parent cac4d002e7
commit 514b51ddf3
1 changed files with 50 additions and 32 deletions
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82
shell/ash.c
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@ -39,13 +39,22 @@
#include <setjmp.h>
#include <fnmatch.h>
#include <glob.h>
#include <sys/times.h>
#include <sys/utsname.h> /* for setting $HOSTNAME */
#include "busybox.h" /* for applet_names */
#include "unicode.h"
#if defined(__ANDROID_API__) && __ANDROID_API__ <= 24
/* Bionic at least up to version 24 has no glob() */
# undef ENABLE_ASH_INTERNAL_GLOB
# define ENABLE_ASH_INTERNAL_GLOB 0
#endif
#if !ENABLE_ASH_INTERNAL_GLOB
# include <glob.h>
#endif
#include "unicode.h"
#include "shell_common.h"
#if ENABLE_SH_MATH_SUPPORT
# include "math.h"
@ -87,6 +96,42 @@
//config: shell (by Herbert Xu), which was created by porting the 'ash' shell
//config: (written by Kenneth Almquist) from NetBSD.
//config:
//config:config ASH_OPTIMIZE_FOR_SIZE
//config: bool "Optimize for size instead of speed"
//config: default y
//config: depends on 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 n
//config: depends on 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"
//config: or similar build errors.
//config:
//config:config ASH_RANDOM_SUPPORT
//config: bool "Pseudorandom generator and $RANDOM variable"
//config: default y
//config: depends on ASH
//config: help
//config: Enable pseudorandom generator and dynamic variable "$RANDOM".
//config: Each read of "$RANDOM" will generate a new pseudorandom value.
//config: You can reset the generator by using a specified start value.
//config: After "unset RANDOM" the generator will switch off and this
//config: variable will no longer have special treatment.
//config:
//config:config ASH_EXPAND_PRMT
//config: bool "Expand prompt string"
//config: default y
//config: depends on ASH
//config: help
//config: "PS#" may contain volatile content, such as backquote commands.
//config: This option recreates the prompt string from the environment
//config: variable each time it is displayed.
//config:
//config:config ASH_BASH_COMPAT
//config: bool "bash-compatible extensions"
//config: default y
@ -166,33 +211,6 @@
//config: help
//config: Enable "check for new mail" function in the ash shell.
//config:
//config:config ASH_OPTIMIZE_FOR_SIZE
//config: bool "Optimize for size instead of speed"
//config: default y
//config: depends on ASH
//config: help
//config: Compile ash for reduced size at the price of speed.
//config:
//config:config ASH_RANDOM_SUPPORT
//config: bool "Pseudorandom generator and $RANDOM variable"
//config: default y
//config: depends on ASH
//config: help
//config: Enable pseudorandom generator and dynamic variable "$RANDOM".
//config: Each read of "$RANDOM" will generate a new pseudorandom value.
//config: You can reset the generator by using a specified start value.
//config: After "unset RANDOM" the generator will switch off and this
//config: variable will no longer have special treatment.
//config:
//config:config ASH_EXPAND_PRMT
//config: bool "Expand prompt string"
//config: default y
//config: depends on ASH
//config: help
//config: "PS#" may contain volatile content, such as backquote commands.
//config: This option recreates the prompt string from the environment
//config: variable each time it is displayed.
//config:
//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))
@ -6994,7 +7012,7 @@ addfname(const char *name)
}
/* If we want to use glob() from libc... */
#if 1
#if !ENABLE_ASH_INTERNAL_GLOB
/* Add the result of glob() to the list */
static void
@ -7055,7 +7073,7 @@ nometa:
}
#else
/* Homegrown globbing code. (dash also has both, uses homegrown one.) */
/* ENABLE_ASH_INTERNAL_GLOB: Homegrown globbing code. (dash also has both, uses homegrown one.) */
/*
* Do metacharacter (i.e. *, ?, [...]) expansion.
@ -7286,7 +7304,7 @@ expandmeta(struct strlist *str /*, int flag*/)
str = str->next;
}
}
#endif /* our globbing code */
#endif /* ENABLE_ASH_INTERNAL_GLOB */
/*
* Perform variable substitution and command substitution on an argument,