Hush is a command-line interpreter, so rename it to make that clearer. Signed-off-by: Simon Glass <sjg@chromium.org>
console_buffer array is defined to be CONFIG_SYS_CBSIZE + 1 long, whereas the_command array only CONFIG_SYS_CBSIZE long. Subsequent use of strcpy(the_command, console_buffer) will write final \0 terminating byte outside the_command array when entering a command of max length. Signed-off-by: Kristian Otnes <kotnes <at> cisco <dot> com>
The following shell command fails:
if test -z "$x"; then echo "zero"; else echo "non-zero"; fi
(assuming $x does not exist, it prints "non-zero" rather than "zero").
... since "$x" expands to nothing, and the argument is completely
dropped, causing too few to be passed to -z, causing cmd_test() to
error out early.
This is because when variable expansions are processed by make_string(),
the expanded results are concatenated back into a new string. However,
no quoting is applied when doing so, so any empty variables simply don't
generate any parameter when the combined string is parsed again.
Fix this by explicitly replacing quoting any argument that was originally
quoted when re-generating a string from the already-parsed argument list.
This also fixes loss of whitespace in commands such as:
setenv space " "
setenv var " 1${space}${space} 2 "
echo ">>${var}<<"
Reported-by: Russell King <linux@arm.linux.org.uk>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
As far as every arch has a get_timer function, run_command_and_time_it code can now disappear. Signed-off-by: Richard Genoud <richard.genoud@gmail.com> Acked-By: Che-Liang Chiou <clchiou@chromium.org> [trini: s/ulong/unsigned long/ in command.h portion] Signed-off-by: Tom Rini <trini@ti.com>
command.c:44:38: error: bad constant expression dlmalloc.c:1468:2: warning: Using plain integer as NULL pointer dlmalloc.c:1468:5: warning: Using plain integer as NULL pointer dlmalloc.c:2176:12: warning: Using plain integer as NULL pointer dlmalloc.c:2179:31: warning: Using plain integer as NULL pointer dlmalloc.c:2382:14: warning: Using plain integer as NULL pointer dlmalloc.c:2436:14: warning: Using plain integer as NULL pointer dlmalloc.c:2582:31: warning: Using plain integer as NULL pointer dlmalloc.c:2585:17: warning: Using plain integer as NULL pointer dlmalloc.c:2646:14: warning: Using plain integer as NULL pointer dlmalloc.c:2659:19: warning: Using plain integer as NULL pointer dlmalloc.c:2692:19: warning: Using plain integer as NULL pointer dlmalloc.c:2707:19: warning: Using plain integer as NULL pointer dlmalloc.c:2708:14: warning: Using plain integer as NULL pointer dlmalloc.c:2786:31: warning: Using plain integer as NULL pointer dlmalloc.c:2801:12: warning: Using plain integer as NULL pointer dlmalloc.c:2801:22: warning: Using plain integer as NULL pointer dlmalloc.c:2926:27: warning: Using plain integer as NULL pointer dlmalloc.c:2928:14: warning: Using plain integer as NULL pointer dlmalloc.c:2929:12: warning: Using plain integer as NULL pointer dlmalloc.c:3075:14: warning: Using plain integer as NULL pointer hush.c:292:14: warning: symbol 'last_return_code' was not declared. Should it be static? hush.c:293:5: warning: symbol 'nesting_level' was not declared. Should it be static? hush.c:2175:20: warning: Using plain integer as NULL pointer hush.c:2175:34: warning: Using plain integer as NULL pointer hush.c:2210:41: warning: Using plain integer as NULL pointer hush.c:2216:45: warning: Using plain integer as NULL pointer hush.c:2249:25: warning: Using plain integer as NULL pointer hush.c:2332:13: warning: symbol 'new_pipe' was not declared. Should it be static? hush.c:2390:5: warning: symbol 'reserved_word' was not declared. Should it be static? hush.c:2927:5: warning: symbol 'parse_stream' was not declared. Should it be static? hush.c:3127:6: warning: symbol 'mapset' was not declared. Should it be static? hush.c:3133:6: warning: symbol 'update_ifs_map' was not declared. Should it be static? hush.c:3161:5: warning: symbol 'parse_stream_outer' was not declared. Should it be static? hush.c:3295:34: warning: Using plain integer as NULL pointer hush.c:3631:5: warning: symbol 'do_showvar' was not declared. Should it be static image.c:1282:29: warning: Using plain integer as NULL pointer image.c:1315:41: warning: Using plain integer as NULL pointer image.c:1330:25: warning: Using plain integer as NULL pointer image.c:1706:25: warning: Using plain integer as NULL pointer main.c:510:10: warning: symbol 'hist_num' was not declared. Should it be static? main.c:512:5: warning: symbol 'hist_list' was not declared. Should it be static? main.c:513:6: warning: symbol 'hist_lines' was not declared. Should it be static? usb_storage.c:195:6: warning: symbol 'usb_show_progress' was not declared. Should it be static? usb_storage.c:440:48: warning: Using plain integer as NULL pointer usb_storage.c:503:5: warning: symbol 'usb_stor_BBB_comdat' was not declared. Should it be static? usb_storage.c:551:5: warning: symbol 'usb_stor_CB_comdat' was not declared. Should it be static? usb_storage.c:629:55: warning: Using plain integer as NULL pointer usb_storage.c:620:5: warning: symbol 'usb_stor_CBI_get_status' was not declared. Should it be static? usb_storage.c:675:43: warning: Using plain integer as NULL pointer usb_storage.c:668:5: warning: symbol 'usb_stor_BBB_clear_endpt_stall' was not declared. Should it be static? usb_storage.c:679:5: warning: symbol 'usb_stor_BBB_transport' was not declared. Should it be static? usb_storage.c:801:5: warning: symbol 'usb_stor_CB_transport' was not declared. Sh xyzModem.c:104:1: warning: symbol 'CYGACC_COMM_IF_GETC_TIMEOUT' was not declared. Should it be static? xyzModem.c:122:1: warning: symbol 'CYGACC_COMM_IF_PUTC' was not declared. Should it be static? xyzModem.c:169:1: warning: symbol 'parse_num' was not declared. Should it be stat note: hush.c's nesting_level deleted because not used. Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
When a variable which contains a user-supplied value is dereferenced (e.g. to be echo'ed), make sure that the value is not further parsed by hush. Set the hush local variable "HUSH_NO_EVAL=1" to enable this behavior. Without this patch, a sequence like this occurs: Panda # env set my_user_string Bob\'s favorite device Panda # print my_user_string my_user_string=Bob's favorite device Panda # echo $my_user_string syntax error hush.c:3007 With this patch, it looks like this: Panda # HUSH_NO_EVAL=1 Panda # env set my_user_string Bob\'s favorite device Panda # print my_user_string my_user_string=Bob's favorite device Panda # echo $my_user_string Bob's favorite device Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Use standard sh syntax:
${VAR:-default}
Use default value: if VAR is set and non-null, expands to $VAR.
Otherwise, expands to default.
${VAR:=default}
Set default value: if VAR is set and non-null, expands to $VAR.
Otherwise, sets hush VAR to default and expands to default.
${VAR:+default}
If VAR is set and non-null, expands to the empty string.
Otherwise, expands to default.
Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Exactly one board has defined CONFIG_SYS_PROMPT_HUSH_PS2 to a value different than "> " which is vision2. I have Cc'd the maintainer here as I strongly suspect this is a bug rather than intentional behavior. Cc: Stefano Babic <sbabic@denx.de> Signed-off-by: Tom Rini <trini@ti.com> Acked-by: Stefano Babic <sbabic@denx.de>
We currently have the same code in hush.c and main.c. This brings the code into one place. As an added feature, if the command function returns CMD_RET_USAGE then cmd_process() will print a usage message for the command before returning the standard failure code of 1. ARM code size increases about 32 bytes with this clean-up. Signed-off-by: Simon Glass <sjg@chromium.org>