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* libbb/loop: fix existence check for LOOP_CONFIGURE ioctlWouter Franken2026-01-261-1/+1
| | | | | | | | | | | | | | | | | | | | | | The LOOP_CONFIGURE ioctl is supported in 5.8 kernels and up. To have backwards compatibility there is a config option CONFIG_TRY_LOOP_CONFIGURE that will check if the ioctl exists and if not fall back to old way of configuring loop devices. Normally errno will be set to EINVAL when this ioctl does not exist. However, when kernel config CONFIG_COMPAT is enabled, then compat_ioctl is called. In that case -ENOIOCTLCMD is returned by loop device driver and generic ioctl wrapper will set errno to ENOTTY. Because busybox does not expect this it will fail to mount loop devices in this case. This patch fixes the check for the existence of the ioctl LOOP_CONFIGURE by checking if errno is one of both: EINVAL or ENOTTY. function old new delta set_loop 809 821 +12 Signed-off-by: Wouter Franken <wouter.franken_ext@softathome.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* lineedit: fix PS1='\W' for root directoryDenys Vlasenko2025-11-081-1/+1
| | | | | | | | | | | | | '\W' in PS1 returned an empty string for the root directory. bash displays '/' in similar circumstances. Avoid returning an empty string for the directory. function old new delta parse_and_put_prompt 873 883 +10 Signed-off-by: Ron Yorston <rmy@pobox.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* busybox: optional --version supportDenys Vlasenko2025-10-131-4/+12
| | | | | | | function old new delta busybox_main 695 734 +39 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* nsenter,unshare: don't use xvfork_parent_waits_and_exits(), it SEGVs on ppc64leDenys Vlasenko2025-10-081-0/+9
| | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* *: code shrink using sigprocmask2() where appropriateDenys Vlasenko2025-08-111-9/+9
| | | | | | | | | | | | function old new delta sig_unblock 41 43 +2 sig_block 41 40 -1 sigprocmask_allsigs 33 31 -2 wait_for_child_or_signal 202 193 -9 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 1/3 up/down: 2/-12) Total: -10 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* ash: eval: Add vfork supportDenys Vlasenko2025-08-091-0/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Upstream commit: Date: Sat, 19 May 2018 02:39:56 +0800 eval: Add vfork support This patch adds basic vfork support for the case of a simple command. Upstream commit: Date: Tue, 12 Jan 2021 17:11:19 +1100 jobs: Always reset SIGINT/SIGQUIT handlers On Fri, Jan 08, 2021 at 08:55:41PM +0000, Harald van Dijk wrote: > On 18/05/2018 19:39, Herbert Xu wrote: > > This patch adds basic vfork support for the case of a simple command. > > ... @@ -879,17 +892,30 @@ forkchild(struct job *jp, union node *n, int > > mode) > > } > > } > > if (!oldlvl && iflag) { > > - setsignal(SIGINT); > > - setsignal(SIGQUIT); > > + if (mode != FORK_BG) { > > + setsignal(SIGINT); > > + setsignal(SIGQUIT); > > + } > > setsignal(SIGTERM); > > } > > + > > + if (lvforked) > > + return; > > + > > for (jp = curjob; jp; jp = jp->prev_job) > > freejob(jp); > > } > > This leaves SIGQUIT ignored in background jobs in interactive shells. > > ENV= dash -ic 'dash -c "kill -QUIT \$\$; echo huh" & wait' > > As of dash 0.5.11, this prints "huh". Before, the subprocess process killed > itself before it could print anything. Other shells do not leave SIGQUIT > ignored. > > (In a few other shells, this also prints "huh", but in those other shells, > that is because the inner shell chooses to ignore SIGQUIT, not because the > outer shell leaves it ignored.) Thanks for catching this. I have no idea how that got in there and it makes no sense whatsoever. This patch removes the if conditional. Fixes: e94a964e7dd0 ("eval: Add vfork support") Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* top,pmap: speed up /smaps parsingDenys Vlasenko2025-08-061-13/+20
| | | | | | | | | | | function old new delta procps_read_smaps 515 529 +14 procps_get_maps 685 665 -20 .rodata 105847 105820 -27 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 1/2 up/down: 14/-47) Total: -33 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* libbb: fix too-narrow variable in procps_read_smaps() causing incorrect sizesDenys Vlasenko2025-08-061-1/+1
| | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* libbb: make read_cmdline() replace chars 1..31 with '?', not spaceDenys Vlasenko2025-08-061-1/+1
| | | | | | Space was too inconspicuous on output Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* top: simplify command line readingDenys Vlasenko2025-08-061-7/+14
| | | | | | | | | | | | function old new delta cmdline_to_line_buf_and_print - 48 +48 read_cmdline 326 327 +1 display_topmem_process_list 523 505 -18 display_process_list 1186 1161 -25 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 1/2 up/down: 49/-43) Total: 6 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* top,pmap: do not use common code for reading /proc/PID/smapsDenys Vlasenko2025-08-051-82/+48
| | | | | | | | | | | | | | | | | | | | | The logic is in fact quite far from common. While at it, stop accounting "---p" mappings as mapped (e.g. VSZ in top). Nothing is mapped there (why would kernel waste RAM to map pages which can't be accessed?). function old new delta read_smaps - 562 +562 read_cmdline 315 326 +11 print_smaprec 97 101 +4 procps_scan 1219 1211 -8 .rodata 115541 115533 -8 skip_whitespace_if_prefixed_with 25 - -25 procps_read_smaps 864 577 -287 ------------------------------------------------------------------------------ (add/remove: 1/1 grow/shrink: 2/3 up/down: 577/-328) Total: 249 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* top: fix display of very large VSZDenys Vlasenko2025-08-051-3/+22
| | | | | | | | | | function old new delta display_process_list 1366 1403 +37 handle_input 628 636 +8 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/0 up/down: 45/0) Total: 45 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* libbb: simplify concat_path_file()Denys Vlasenko2025-08-041-2/+2
| | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* libbb: much faster concat_path_file()Denys Vlasenko2025-08-041-0/+75
| | | | | | | function old new delta concat_path_file 68 127 +59 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* shell: fix the check of empty HISTFILEDenys Vlasenko2025-08-031-1/+1
| | | | | | | | The check for "" history file is done on a wrong state pointer. Fixes: shell: empty HISTFILE disables history saving, just as unset one did Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* ftpd: code shrink, move replace_char() to libbbDenys Vlasenko2025-08-021-0/+14
| | | | | | | | | | | function old new delta modprobe_main 803 804 +1 escape_text 127 122 -5 replace 18 - -18 ------------------------------------------------------------------------------ (add/remove: 0/1 grow/shrink: 1/1 up/down: 1/-23) Total: -22 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* libbb/dump: much faster formatting of %_u on x86Denys Vlasenko2025-08-011-2/+18
| | | | | | | function old new delta display 1485 1481 -4 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* libbb/yescrypt: code shrinkDenys Vlasenko2025-08-011-4/+9
| | | | | | | function old new delta static.PBKDF2_SHA256 219 165 -54 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* ls: fix -Q to match GNUDenys Vlasenko2025-08-012-20/+39
| | | | | | | | | | | | | function old new delta print_name 137 229 +92 display_files 375 402 +27 c_escape_conv_str00 - 24 +24 display 1476 1485 +9 conv_str 33 - -33 ------------------------------------------------------------------------------ (add/remove: 2/1 grow/shrink: 3/0 up/down: 152/-33) Total: 119 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* ls: implement -q, fix -w0, reduce startup timeDenys Vlasenko2025-07-311-2/+11
| | | | | | | | | | | | | | | | function old new delta ls_main 598 660 +62 ls_longopts - 47 +47 G_isatty - 36 +36 print_name 102 134 +32 display_files 358 374 +16 .rodata 105829 105833 +4 vgetopt32 1330 1317 -13 static.ls_longopts 47 - -47 ------------------------------------------------------------------------------ (add/remove: 2/1 grow/shrink: 4/1 up/down: 197/-60) Total: 137 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* sha384sum: new appletAndy Knowles2025-07-301-13/+45
| | | | | | | | | | | | | | | | | | | | | function old new delta sha512384_end - 198 +198 packed_usage 35021 35134 +113 init384 - 80 +80 sha384_begin - 19 +19 sha384_end - 10 +10 applet_names 2823 2833 +10 md5_sha1_sum_main 501 507 +6 sha3_end 54 59 +5 applet_main 1628 1632 +4 show_usage_if_dash_dash_help 79 72 -7 hash_file 358 344 -14 sha512_end 197 10 -187 ------------------------------------------------------------------------------ (add/remove: 4/0 grow/shrink: 5/3 up/down: 445/-208) Total: 237 bytes Signed-off-by: Andy Knowles <aknowles@galleonec.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* libbb: SHA-NI - document that unpckhpd also works, no code changesDenys Vlasenko2025-07-222-0/+4
| | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* libbb: SHA-NI code shrinkDenys Vlasenko2025-07-222-34/+66
| | | | | | | function old new delta sha256_process_block64_shaNI 673 657 -16 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* libbb: change define names in SHA-NI code to match kernel source more closelyDenys Vlasenko2025-07-212-166/+166
| | | | | | No code changes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* libbb/yescrypt: de-unroll salsa20()Denys Vlasenko2025-07-202-23/+76
| | | | | | | function old new delta salsa20 760 296 -464 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* libbb: crypt_make_pw_salt(): fix yescrypt's random salt last charDenys Vlasenko2025-07-191-3/+11
| | | | | | | function old new delta crypt_make_pw_salt 128 146 +18 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* cryptpw: fix detection of crypt algo from salt (was broken if default isn't DES)Denys Vlasenko2025-07-191-6/+5
| | | | | | | | | | | | | The symptom is: "cryptpw ... implicit" testsuite tests were failing if CONFIG_FEATURE_DEFAULT_PASSWD_ALGO is not "des". function old new delta cryptpw_main 223 283 +60 pw_encrypt 974 975 +1 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/0 up/down: 61/0) Total: 61 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* libbb/yescrypt: code shrinkDenys Vlasenko2025-07-191-28/+25
| | | | | | | function old new delta blockmix_xor_save 1169 708 -461 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* libbb/yescrypt: actually, largest allowed salt is 86 chars, support thatDenys Vlasenko2025-07-172-12/+16
| | | | | | | function old new delta yescrypt_r 767 756 -11 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* libbb/yescrypt: code shrinkDenys Vlasenko2025-07-151-15/+8
| | | | | | | function old new delta blockmix_xor 1177 702 -475 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* libbb/yescrypt: code shrinkDenys Vlasenko2025-07-112-10/+7
| | | | | | | | | | | | | function old new delta salsa20 684 650 -34 blockmix_salsa8 198 144 -54 blockmix 762 565 -197 blockmix_xor 1322 1028 -294 blockmix_xor_save 1499 1103 -396 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/5 up/down: 0/-975) Total: -975 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* libbb/yescrypt: code shrinkDenys Vlasenko2025-07-092-15/+28
| | | | | | | | | | function old new delta static.yescrypt_kdf32_body 847 823 -24 yescrypt_r 805 767 -38 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-62) Total: -62 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* libbb/bitops.c: add inlining commentDenys Vlasenko2025-07-091-0/+20
| | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* libbb: introduce and use block-XOR functionsDenys Vlasenko2025-07-093-0/+116
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On x86_64, they can be done in 16-byte blocks 64-bit: function old new delta xorbuf_3 - 84 +84 xorbuf64_3_aligned64 - 58 +58 smix1 687 712 +25 xwrite_encrypted 520 534 +14 xorbuf16_aligned_long - 13 +13 tls_xread_record 733 742 +9 xorbuf 21 13 -8 xorbuf_aligned_AES_BLOCK_SIZE 15 - -15 blockmix 814 762 -52 blockmix_salsa8 317 198 -119 blockmix_xor_save 1620 1499 -121 blockmix_xor 1543 1322 -221 ------------------------------------------------------------------------------ (add/remove: 4/1 grow/shrink: 3/5 up/down: 203/-536) Total: -333 bytes 32-bit: function old new delta xorbuf_3 - 76 +76 xorbuf64_3_aligned64 - 36 +36 xorbuf16_aligned_long - 23 +23 xwrite_encrypted 499 507 +8 tls_xread_record 646 650 +4 xorbuf 22 11 -11 xorbuf_aligned_AES_BLOCK_SIZE 23 - -23 blockmix 1083 938 -145 blockmix_salsa8 415 210 -205 blockmix_salsa8_xor 601 163 -438 blockmix_xor 2103 1533 -570 blockmix_xor_save 2614 1859 -755 ------------------------------------------------------------------------------ (add/remove: 4/1 grow/shrink: 2/6 up/down: 147/-2147) Total: -2000 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* libbb: code shrink in sha_crypt()Denys Vlasenko2025-07-081-2/+1
| | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* libbb/yescrypt: disable NROM codeDenys Vlasenko2025-07-082-27/+50
| | | | | | | | | | | | | function old new delta smix1 - 595 +595 smix2 - 414 +414 static.yescrypt_kdf32_body 899 847 -52 static.smix2 420 - -420 static.smix1 604 - -604 ------------------------------------------------------------------------------ (add/remove: 2/2 grow/shrink: 0/1 up/down: 1009/-1076) Total: -67 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* libbb/yescrypt: disable code which accepts unusual yescrypt parametersDenys Vlasenko2025-07-082-53/+92
| | | | | | | | | | | | | | | | | Almost any reasonable yescrypt hashes in /etc/shadow should only ever use "jXY" parameters which set N and r. Fancy multi-byte-encoded wide integers are not needed for that. function old new delta static.yescrypt_kdf32_body - 899 +899 static.PBKDF2_SHA256 213 219 +6 decode64_uint32 141 - -141 yescrypt_r 990 805 -185 yescrypt_kdf32_body 1423 - -1423 ------------------------------------------------------------------------------ (add/remove: 1/2 grow/shrink: 1/1 up/down: 905/-1749) Total: -844 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* libbb/yescrypt: explain and shrink decode64_uint32()Denys Vlasenko2025-07-082-10/+79
| | | | | | | function old new delta decode64_uint32 177 141 -36 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* libbb/yescrypt: code shrinkDenys Vlasenko2025-07-082-19/+49
| | | | | | | | | | | | Setting EINVAL in errno is not necessary, just error return works. function old new delta yescrypt_kdf32_body 1434 1423 -11 yescrypt_r 1029 990 -39 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-50) Total: -50 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* libbb/yescrypt: madvise(MADV_HUGEPAGE) our usually very large allocationDenys Vlasenko2025-07-071-2/+13
| | | | | | | | | Nearly ~2 faster run when buffer is gigabytes in size function old new delta yescrypt_kdf32_body 1386 1406 +20 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* libbb/yescrypt: disable unrolling in two placesDenys Vlasenko2025-07-071-96/+159
| | | | | | | | | | | | | Also, make many define macros safer function old new delta blockmix 2300 814 -1486 blockmix_xor 4606 1543 -3063 blockmix_xor_save 4737 1620 -3117 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/3 up/down: 0/-7666) Total: -7666 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* libbb/yescrypt: 64-bit build fixesDenys Vlasenko2025-07-071-8/+4
| | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* add libbb/yescrypt/PARAMETERSDenys Vlasenko2025-07-073-6/+202
| | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* libbb/yescrypt: no need to find salt-terminating "$" twiceDenys Vlasenko2025-07-071-16/+10
| | | | | | | function old new delta yescrypt_r 1048 1029 -19 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* libbb/yescrypt: code shrinkDenys Vlasenko2025-07-071-3/+3
| | | | | | | function old new delta yescrypt_r 1063 1048 -15 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* cryptpw: -m sha512crypt must also be acceptedDenys Vlasenko2025-07-071-1/+1
| | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* libbb/yescrypt: fix salts ending in dots (corresponding to binary zeros)Denys Vlasenko2025-07-071-1/+1
| | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* libbb/yescrypt: accept longer salts (up to 84 chars)Denys Vlasenko2025-07-072-2/+79
| | | | | | | | | | | | function old new delta cryptpw_main 214 223 +9 chpasswd_main 347 356 +9 passwd_main 931 934 +3 yescrypt_r 1084 1056 -28 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 3/1 up/down: 21/-28) Total: -7 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* libbb/yescrypt: remove forgotten SHA256 HMAC header fileDenys Vlasenko2025-07-072-32/+0
| | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
* libbb/yescrypt: make it possible to set constant parameters, and set YESCRYPT_RWDenys Vlasenko2025-07-073-95/+141
| | | | | | | | | | | function old new delta yescrypt_kdf32_body 1052 1420 +368 yescrypt_r 1133 1084 -49 static.smix 762 - -762 ------------------------------------------------------------------------------ (add/remove: 0/1 grow/shrink: 1/1 up/down: 368/-811) Total: -443 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2026-02-09 08:59:41 +0000