libbb: reverse performance regression in bb_copyfd_*

2026-05-10T12:00:34+00:00

Commit c4f24ec9d (libbb: try to mitigate 'cat /dev/urandom') resulted in a 'cat' to the terminal taking ~25% longer than before. Raising the isatty() call out of the loop reduces the penalty to ~1%. Adds 16 bytes in the 32-bit build. (GitHub issue #585)

libbb: try to mitigate 'cat /dev/urandom'

2026-05-08T13:18:44+00:00

Now that '/dev/urandom' can be used directly, people with a sense of curiosity and adventure have tried running 'cat /dev/urandom' or 'cat

crond: build tweaks

2026-05-03T09:52:29+00:00

Using 'depends on FEATURE_SYSLOG' is unreliable because FEATURE_SYSLOG can't be set directly. A POSIX build with all applets that need syslog disabled *except* crond may fail. Revert to using 'select FEATURE_SYSLOG' in crond and exclude the unused syslog code on Windows. If crond is unable to run sendmail report this in the error message. Update all default Windows configurations. (GitHub PR #561)

Merge branch 'busybox' into merge

2026-03-11T10:14:49+00:00

*: don't use getservbyname, it links in a static buffer

2026-02-25T01:35:32+00:00

function old new delta bb_get_servport_by_name - 348 +348 bb_lookup_port 83 111 +28 reread_config_file 886 907 +21 static.se 16 - -16 getservbyname 53 - -53 getservbyname_r 284 - -284 ------------------------------------------------------------------------------ (add/remove: 2/5 grow/shrink: 2/0 up/down: 397/-353) Total: 44 bytes text data bss dec hex filename 1080084 555 5024 1085663 1090df busybox_old 1080144 555 4992 1085691 1090fb busybox_unstripped Signed-off-by: Denys Vlasenko

netstat: fix breakage due to last commit

2026-02-24T22:11:21+00:00

function old new delta bb_get_servname_by_port 182 195 +13 ip_port_str 121 120 -1 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 1/1 up/down: 13/-1) Total: 12 bytes Signed-off-by: Denys Vlasenko

netstat,pscan: don't use getservbyport(), it links in a static buffer

2026-02-24T21:42:30+00:00

function old new delta bb_get_servname_by_port - 182 +182 ip_port_str 112 121 +9 pscan_main 594 591 -3 getservbyport 53 - -53 getservbyport_r 430 - -430 ------------------------------------------------------------------------------ (add/remove: 2/4 grow/shrink: 1/1 up/down: 191/-486) Total: -295 bytes text data bss dec hex filename 1080362 555 5056 1085973 109215 busybox_old 1080067 555 5024 1085646 1090ce busybox_unstripped Signed-off-by: Denys Vlasenko

telnetd: if vfork in make_new_session() fails, do close socket.

2026-02-23T23:03:20+00:00

function old new delta telnetd_main 372 385 +13 make_new_session 550 552 +2 xgetpty 81 78 -3 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/1 up/down: 15/-3) Total: 12 bytes Signed-off-by: Denys Vlasenko

telnet: rewrite to use ioloop()

2026-02-23T13:47:17+00:00

Now should never block on network I/O. Also, window resizing is dynamic now. function old new delta write_to_net - 596 +596 read_from_net - 543 +543 read_from_stdin - 227 +227 show_menu - 212 +212 write_to_stdout - 105 +105 have_data_to_write_to_net - 72 +72 have_data_to_write_to_stdout - 38 +38 put_iac_byte_escaped - 32 +32 ioloop_run 411 438 +27 have_buffer_to_read_from_stdin - 25 +25 have_buffer_to_read_from_net - 25 +25 .rodata 107125 107141 +16 handle_SIGWINCH - 15 +15 put_iac 36 28 -8 put_iac4_msb_lsb 19 - -19 iac_flush 36 - -36 setConMode 87 - -87 handle_net_output 110 - -110 con_escape 271 - -271 telnet_main 1232 476 -756 ------------------------------------------------------------------------------ (add/remove: 11/5 grow/shrink: 2/2 up/down: 1933/-1287) Total: 646 bytes Signed-off-by: Denys Vlasenko

telnetd: do not send stray \r\n before /etc/issue.net

2026-02-22T23:09:10+00:00

Signed-off-by: Denys Vlasenko

busybox-w32/libbb, branch cron_changes