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2023-06-15shell: document another arithmetic discrepancy with bashDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-06-15libbb: code shrink: introduce and use [_]exit_FAILURE()Denys Vlasenko
function old new delta exit_FAILURE - 7 +7 _exit_FAILURE - 7 +7 run 198 199 +1 restore_state_and_exit 114 115 +1 xbsd_write_bootstrap 399 397 -2 vfork_compressor 209 207 -2 sig_handler 12 10 -2 serial_ctl 154 152 -2 parse_args 1169 1167 -2 onintr 21 19 -2 make_new_session 493 491 -2 login_main 988 986 -2 gotsig 35 33 -2 do_iplink 1315 1313 -2 addgroup_main 397 395 -2 inetd_main 1911 1908 -3 ------------------------------------------------------------------------------ (add/remove: 2/0 grow/shrink: 2/12 up/down: 16/-25) Total: -9 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-06-15shell/math: remove special code to handle a?b?c:d:e, it works without it nowDenys Vlasenko
The "hack" to virtually parenthesize ? EXPR : made this unnecessary. The expression is effectively a?(b?(c):d):e and thus b?c:d is evaluated before continuing with the second : function old new delta evaluate_string 1148 1132 -16 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-06-15shell/math: fix parsing of ?: and explain why it's parsed that wayDenys Vlasenko
This fixes arith-precedence1.tests. This breaks arith-ternary2.tests again (we now evaluate variables on not-taken branches). We need a better logic here anyway: not only bare variables should not evaluate when not-taken: 1 ? eval_me : do_not_eval but any (arbitrarily complex) expressions shouldn't evaluate as well! 1 ? var_is_set=1 : ((var_is_not_set=2,var2*=4)) function old new delta evaluate_string 1097 1148 +51 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-06-15shell/math: simpler insertion of "fake" last RPARENDenys Vlasenko
Skip one pass through token table, since we know the result. function old new delta evaluate_string 1095 1097 +2 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-06-14shell: sync ash/hush test scriptsDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-06-14shell/math: trivial code shrinkDenys Vlasenko
function old new delta arith_apply 1143 1132 -11 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-06-14shell/math: fix the order of variable resolution in binopsDenys Vlasenko
function old new delta arith_apply 1134 1143 +9 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-06-14shell/math: remove now-unused second_valDenys Vlasenko
function old new delta arith_apply 1137 1134 -3 evaluate_string 1101 1095 -6 arith_lookup_val 150 143 -7 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/3 up/down: 0/-16) Total: -16 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-06-14shell/math: fix nested ?: and do not parse variables in not-taken branchDenys Vlasenko
Fixes arith-ternary1.tests and arith-ternary_nested.tests function old new delta evaluate_string 1043 1101 +58 arith_apply 1087 1137 +50 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/0 up/down: 108/0) Total: 108 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-06-14shell/math: remove a redundant checkDenys Vlasenko
function old new delta arith_apply 1134 1087 -47 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-06-14shell/math: document ternary ?: op's weirdness, add code commentsDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-06-13syslogd: daemonize _after_ init (so that init errors are visible, if they occur)Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-06-13syslogd: decrease stack usage, ~50 bytesDenys Vlasenko
function old new delta syslogd_init - 1007 +1007 syslogd_main 1619 636 -983 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 0/1 up/down: 1007/-983) Total: 24 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-06-13shell/math: fix one name check, other minor cleanupsDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-06-13shell: add a few yet-failing arithmentic testsDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-06-13shell/math: reduce stack usageDenys Vlasenko
function old new delta arith_apply 1123 1134 +11 arith_lookup_val 140 145 +5 evaluate_string 1053 1047 -6 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/1 up/down: 16/-6) Total: 10 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-06-12shell: avoid segfault on ${0::0/0~09J}. Closes 15216Denys Vlasenko
function old new delta evaluate_string 1011 1053 +42 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-06-12hush: fix expansion of space in "a=${a:+$a }c" constructDenys Vlasenko
function old new delta encode_then_append_var_plusminus 554 552 -2 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-06-12udhcpd: optional BOOTP supportDenys Vlasenko
from Adam Goldman <adamg@pobox.com> This patch makes udhcpd respond correctly to queries from BOOTP clients. It contains the following changes: The end field, or DHCP_END option, is required in DHCP requests but optional in BOOTP requests. However, we still send an end field in all replies, because some BOOTP clients expect one in replies even if they didn't send one in the request. Requests without a DHCP_MESSAGE_TYPE are recognized as BOOTP requests and handled appropriately, instead of being discarded. We still require an RFC 1048 options field, but we allow it to be empty. Since a BOOTP client will keep using the assigned IP forever, we only send a BOOTP reply if a static lease exists for that client. BOOTP replies shouldn't contain DHCP_* options, so we omit them if there was no DHCP_MESSAGE_TYPE in the request. Options other than DHCP_* options are still sent. The options field of a BOOTP reply must be exactly 64 bytes. If we construct a reply with more than 64 bytes of options, we give up and log an error instead of sending it. udhcp_send_raw_packet already pads the options field to 64 bytes if it is too short. This implementation has been tested against an HP PA-RISC client. function old new delta .rodata 105247 105321 +74 udhcpd_main 1520 1591 +71 send_offer 419 470 +51 init_packet 81 97 +16 udhcp_init_header 75 88 +13 udhcp_scan_options 192 203 +11 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 6/0 up/down: 236/0) Total: 236 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-06-12libbb: pass "" rather than NULL as format string in _nomsg functionsDenys Vlasenko
function old new delta bb_perror_nomsg_and_die 9 10 +1 bb_perror_nomsg 9 10 +1 bb_verror_msg 480 469 -11 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/1 up/down: 2/-11) Total: -9 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-06-08awk: fix subst code to handle "start of word" pattern correctly (needs ↵Denys Vlasenko
REG_STARTEND) function old new delta awk_sub 637 714 +77 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-06-07awk: fix SEGV on read error in -f PROGFILEDenys Vlasenko
function old new delta awk_main 829 843 +14 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-06-06awk: code shrinkDenys Vlasenko
function old new delta awk_sub 544 548 +4 exec_builtin 1136 1130 -6 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 1/1 up/down: 4/-6) Total: -2 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-06-03awk: fix backslash handling in sub() builtinsDenys Vlasenko
function old new delta awk_sub 559 544 -15 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-05-30awk: fix precedence of = relative to ==Denys Vlasenko
Discovered while adding code to disallow assignments to non-lvalues function old new delta parse_expr 936 991 +55 .rodata 105243 105247 +4 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/0 up/down: 59/0) Total: 59 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-05-29tunctl: code shrinkDenys Vlasenko
function old new delta .rodata 105246 105243 -3 tunctl_main 349 344 -5 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-8) Total: -8 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-05-29awk: printf(INVALID_FMT) prints it verbatimDenys Vlasenko
function old new delta awk_printf 628 640 +12 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-05-28awk: shrink - use setvar_sn() to set variables from non-NUL terminated stringsDenys Vlasenko
function old new delta setvar_sn - 39 +39 exec_builtin 1145 1136 -9 awk_getline 591 559 -32 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 0/2 up/down: 39/-41) Total: -2 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-05-28awk: code shrinkDenys Vlasenko
function old new delta awk_getline 620 591 -29 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-05-28awk: fix closing of non-opened fileDenys Vlasenko
function old new delta setvar_ERRNO - 53 +53 .rodata 105252 105246 -6 awk_getline 639 620 -19 evaluate 3402 3377 -25 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 0/3 up/down: 53/-50) Total: 3 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-05-28libbb/dump: code shrinkDenys Vlasenko
function old new delta .rodata 105252 105246 -6 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-05-27awk: do not read ARGIND, only set it (gawk compat)Denys Vlasenko
function old new delta next_input_file 216 243 +27 evaluate 3396 3402 +6 awk_main 826 829 +3 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 3/0 up/down: 36/0) Total: 36 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-05-27awk: remove a local variable "caching" a struct memberDenys Vlasenko
Since we take its address, the variable lives on stack (not a GPR). Thus, nothing is improved by caching it. function old new delta awk_getline 642 639 -3 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-05-27awk: get rid of one indirection level for iF (input file structure)Denys Vlasenko
function old new delta try_to_assign - 91 +91 next_input_file 214 216 +2 awk_main 827 826 -1 evaluate 3403 3396 -7 is_assignment 91 - -91 ------------------------------------------------------------------------------ (add/remove: 1/1 grow/shrink: 1/2 up/down: 93/-99) Total: -6 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-05-27awk: fix splitting with default FSDenys Vlasenko
function old new delta awk_split 543 544 +1 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-05-27libbb/dump: make xxd_displayoff member conditional on xxdDenys Vlasenko
With xxd not selected: function old new delta display 1459 1444 -15 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-05-26od: -l,I,L indeed depend on sizeof(long), fix thisDenys Vlasenko
function old new delta .rodata 105255 105252 -3 od_main 1917 1901 -16 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-19) Total: -19 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-05-26awk: fix use-after-realloc (CVE-2021-42380), closes 15601Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-05-26hexdump: code shrinkDenys Vlasenko
function old new delta add_format - 50 +50 add_first 10 - -10 hexdump_main 401 366 -35 .rodata 105306 105255 -51 ------------------------------------------------------------------------------ (add/remove: 1/1 grow/shrink: 0/2 up/down: 50/-96) Total: -46 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-05-26hexdump, xxd: shrink stringsDenys Vlasenko
function old new delta add_first 12 10 -2 .rodata 105321 105306 -15 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-17) Total: -17 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-05-26libbb/dump: correct handling of 1-byte signed int formatDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-05-26libbb/dump: use fputs_stdout where appropriateDenys Vlasenko
function old new delta display 1485 1483 -2 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-05-26od, hexdump: byte 0x11 is "dc1" not "dcl"Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-05-26od: actually remove -IL from --help, as comment saysDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-05-26od: support -DOHXILDenys Vlasenko
function old new delta od_main 1866 1917 +51 .rodata 105306 105321 +15 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/0 up/down: 66/0) Total: 66 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-05-26libbb/dump: conditionalize code used only by xxd and odDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-05-26od: fix default format, shrinkDenys Vlasenko
function old new delta od_main 556 568 +12 .rodata 104613 104555 -58 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 1/1 up/down: 12/-58) Total: -46 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-05-25od: stop printing extra trailing spacesDenys Vlasenko
function old new delta .rodata 104598 104613 +15 display 1475 1485 +10 od_main 549 556 +7 rewrite 971 967 -4 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 3/1 up/down: 32/-4) Total: 28 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2023-05-25od: implement -BDenys Vlasenko
function old new delta .rodata 105305 105306 +1 od_main 1880 1866 -14 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 1/1 up/down: 1/-14) Total: -13 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
generated by cgit v1.1 at 2024-11-05 05:28:41 +0000