busybox-w32/loginutils, branch path_search

su: free all allocated memory

2024-03-08T09:19:30+00:00

Ensure memory is freed even on early exit. Saves 0-16 bytes.

su: handle restricted disk drivers

2024-03-07T14:34:22+00:00

Certain tools which allow disk image files and RAM disks to be mounted were found to lack a feature used to implement realpath(3). This resulted in a segfault in the 'su' applet when it was run in such a virtual filesystem. 'su' uses realpath(3) to canonicalise the current directory. This is only really required to handle network shares mapped to a drive letter. (GitHub issue #148) - If the call to realpath(3) fails for some reason fall back to using the current directory determined by calling getcwd(3). - If getcwd(3) fails simply don't pass any directory to the shell being started by 'su'. Also, ensure all allocated memory is freed, if required. (GitHub issue #389) Adds 16-32 bytes.

win32: convert exit codes

2023-09-14T07:09:14+00:00

Add two utility functions to convert Windows process exit codes. - exit_code_to_wait_status() converts to a POSIX wait status. This is used in ash and the implementations of system(3) and mingw_wait3(). - exit_code_to_posix() converts to a POSIX exit code. (Not that POSIX has much to say about them.) As a result it's possible for more applets to report when child processes are killed as if by a signal. 'time', 'drop' and 'su -W', for example. Adds 64-80 bytes.

Merge branch 'busybox' into merge

2023-07-13T07:06:26+00:00

Update applet size estimates

2023-07-10T15:25:21+00:00

Signed-off-by: Denys Vlasenko

libbb: code shrink: introduce and use [_]exit_FAILURE()

2023-06-15T09:55:56+00:00

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

su: fix usage message

2023-05-28T09:13:49+00:00

su: add option to keep console open on shell exit

2023-05-02T10:01:10+00:00

The '-N' option keeps the console window open after the elevated shell exits. Previously this was achieved by passing the '-s' option along with '-c'. Recent changes allow scripts to be run without using '-c' so a new mechanism is required. su passes the '-N' flag to the shell. This causes the shell to issue a prompt and wait for user input when it exits. Costs 200-204 bytes.

su: add option to wait for shell exit code

2023-05-02T10:00:25+00:00

The '-W' option causes su to wait for the elevated shell to terminate and returns its exit code. Costs 144 bytes.

su: pass additional arguments to sh

2023-04-26T07:33:28+00:00

The real su allows a command file to be run, with arguments given on the command line. Similarly it allows the script run with '-c' to take arguments. In fact, any arguments can be passed to sh. Permit the same in the Windows implementation. For compatibility this requires a user name to be specified, even though we only support elevation. The user name must be 'root'. Also, ensure the '-c' command is properly quoted. Adds 144-152 bytes. (GitHub PR #317)