[Bug 1255] Standalone shell hush can no longer exec applets

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=1255





--- Comment #1 from Denys Vlasenko <vda.linux at googlemail.com>  2010-03-21 18:43:05 UTC ---
You also need CONFIG_FEATURE_PREFER_APPLETS=y

With the following config:

# grep ^CON .config
CONFIG_HAVE_DOT_CONFIG=y
CONFIG_INCLUDE_SUSv2=y
CONFIG_FEATURE_BUFFERS_USE_MALLOC=y
CONFIG_SHOW_USAGE=y
CONFIG_FEATURE_COMPRESS_USAGE=y
CONFIG_SUBST_WCHAR=0
CONFIG_LAST_SUPPORTED_WCHAR=0
CONFIG_LONG_OPTS=y
CONFIG_FEATURE_DEVPTS=y
CONFIG_FEATURE_PREFER_APPLETS=y
CONFIG_BUSYBOX_EXEC_PATH="/proc/self/exe"
CONFIG_CROSS_COMPILER_PREFIX=""
CONFIG_EXTRA_CFLAGS=""
CONFIG_NO_DEBUG_LIB=y
CONFIG_INSTALL_APPLET_SYMLINKS=y
CONFIG_PREFIX="./_install"
CONFIG_PASSWORD_MINLEN=6
CONFIG_MD5_SIZE_VS_SPEED=2
CONFIG_FEATURE_EDITING_MAX_LEN=0
CONFIG_FEATURE_EDITING_HISTORY=0
CONFIG_FEATURE_NON_POSIX_CP=y
CONFIG_FEATURE_COPYBUF_KB=4
CONFIG_MONOTONIC_SYSCALL=y
CONFIG_IOCTL_HEX2STR_ERROR=y
CONFIG_FEATURE_HWIB=y
CONFIG_ECHO=y
CONFIG_FEATURE_FANCY_ECHO=y
CONFIG_DEFAULT_SETFONT_DIR=""
CONFIG_FEATURE_VI_MAX_LEN=0
CONFIG_FEATURE_KILL_DELAY=0
CONFIG_TELINIT_PATH=""
CONFIG_USE_BB_CRYPT=y
CONFIG_FIRST_SYSTEM_ID=0
CONFIG_LAST_SYSTEM_ID=0
CONFIG_DEFAULT_MODULES_DIR=""
CONFIG_DEFAULT_DEPMOD_FILE=""
CONFIG_FSCK_MINIX=y
CONFIG_FEATURE_MINIX2=y
CONFIG_FEATURE_BEEP_FREQ=0
CONFIG_FEATURE_BEEP_LENGTH_MS=0
CONFIG_FEATURE_CROND_DIR=""
CONFIG_FEATURE_LESS_MAXLINES=0
CONFIG_IFUPDOWN_IFSTATE_PATH=""
CONFIG_DHCPD_LEASES_FILE=""
CONFIG_UDHCP_DEBUG=0
CONFIG_UDHCPC_DEFAULT_SCRIPT=""
CONFIG_UDHCPC_SLACK_FOR_BUGGY_SERVERS=0
CONFIG_IFUPDOWN_UDHCPC_CMD_OPTIONS=""
CONFIG_FEATURE_MIME_CHARSET=""
CONFIG_SV_DEFAULT_SERVICE_DIR=""
CONFIG_FEATURE_SH_IS_NONE=y
CONFIG_HUSH=y
CONFIG_HUSH_BASH_COMPAT=y
CONFIG_HUSH_INTERACTIVE=y
CONFIG_SH_MATH_SUPPORT=y
CONFIG_FEATURE_SH_STANDALONE=y
CONFIG_FEATURE_IPC_SYSLOG_BUFFER_SIZE=0

I see the following behavior: "cp" fails as expected (I dont have this applet
enabled, and PATH is ""), but enabled applet "fsck.minix" works:

# PATH= ./busybox hush


BusyBox v1.17.0.git (2010-03-21 19:15:47 CET) hush - the humble shell

/.1/usr/srcdevel/bbox/fix/busybox.z7 # cp
hush: can't execute 'cp': No such file or directory
/.1/usr/srcdevel/bbox/fix/busybox.z7 # fsck.minix
BusyBox v1.17.0.git (2010-03-21 19:15:47 CET) multi-call binary.

Usage: fsck.minix [-larvsmf] BLOCKDEV

/.1/usr/srcdevel/bbox/fix/busybox.z7 #


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