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* time: WIN32 portRon Yorston2020-04-061-1/+2
| | | | | | | | Port the time applet to WIN32. This requires the implemntation of a replacement for wait3(2). Only elapsed, user and system times are supported, not the memory and i/o statistics reported by GNU time.
* win32: new functions: getpeername(2), mingw_spawn_detach()Ron Yorston2020-04-051-0/+3
| | | | | | | Implement getpeername(2). Add mingw_spawn_detach() to allow the spawned process to detach from the console.
* dd: create a sparse file when seek=N is usedRon Yorston2020-03-241-0/+1
| | | | | | | When the seek=N argument is used mark the file as sparse and set the range that is sparse. See https://stackoverflow.com/questions/4011508/how-to-create-a-sparse-file-on-ntfs
* win32: tidy up detection of device filesRon Yorston2020-02-161-1/+1
| | | | | | | Define NOT_DEVICE as -1 so the return value of index_in_strings() when no device name is matched is NOT_DEVICE. Make the logic in mingw_open() clearer.
* win32: code shrinkRon Yorston2020-02-131-1/+1
| | | | | Have bs_to_slash() return a pointer to its argument. This allows some calls to be chained, saving 32 bytes.
* date: code shrinkRon Yorston2020-02-111-1/+0
| | | | | | | Since we don't have a working clock_settime(2) there's no point in claiming to support the '-s' option. Saves 96 bytes
* Build fixesFRP-3329-gcf0fa4d13Ron Yorston2020-01-081-1/+1
| | | | | | - Update configuration files - Omit unnecessary libraries - Replace fake stime(2) with fake clock_settime(2)
* win32: allow nanosecond precision in file timesRon Yorston2019-08-161-16/+19
| | | | | | Modern Linux kernels use struct timespec to represent file times, thus allowing nanosecond precision. Update the WIN32 emulation of struct stat and stat(2) to do the same.
* win32: try to make working directory names consistentRon Yorston2019-04-021-0/+1
| | | | | | | | | | | | | | | Standardise the path names used for the current working directory by: - resolving with realpath(3); - making the drive name or host name uppercase. The first only really works for physical drives; results for mapped drives are patchy. The standardisation is applied in two places: - at the end of updatepwd() in ash; - when a symbolic link is resolved in mingw_chdir().
* win32: fix compilation error; update default configurationsRon Yorston2019-03-311-0/+1
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* win32: improved support for c:path path namesRon Yorston2019-03-301-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | Microsoft Windows permits path names of the form 'c:path', without a path separator after the colon. The system records a current directory for each drive and the path is interpreted relative to that. Since Windows API calls understand 'c:path' path names many commands in busybox-w32 already work with them. This commit adds the following: - The 'cd' shell built-in interprets 'c:path' path names correctly. Previously it treated them as relative to the shell's concept of the current working directory, not the current directory of the specified drive. - The 'pwd' shell built-in takes the '-a' option to list the current directory for all drives. - 'c:path' path names are subject to tab-completion. Paths of the form 'c:path' don't work for mapped network drives or paths that have been associated with a drive using SUBST. See GitHub issue #147.
* win32: interpret absolute paths as relative to %SYSTEMDRIVE%Ron Yorston2019-03-281-0/+3
| | | | | | | | | | | | | | | | | | | | | | BusyBox contains hardcoded references to absolute paths which are unique in the *nix world but on Microsoft Windows are interpreted as being on the current drive. To make these unique again consider them to be relative to %SYSTEMDRIVE%. Support this by adding functions to: - determine the system drive (not using the environment variable); - change a process's current directory to the root of the system drive; - make relative paths absolute before changing directory (if needed). The following applications have been modified: - ash references /etc/profile from the system drive; - dpkg places its data store on and installs files to the system drive; - rpm installs files to the system drive; - man looks for configuration files and man pages on the system drive. See GitHub issue #158.
* win32: share code to find root prefix of pathRon Yorston2019-03-231-0/+3
| | | | | | | Move unc_root_len() from ash to mingw32.c and use it in the new function root_len(), which can be used in make_directory(). This reduces changes to upstream code and saves a few bytes.
* win32: add function to convert slashes to backslashesRon Yorston2019-03-151-1/+2
| | | | | | | | | There are now two places where slashes are converted to backslashes throughout a string so it makes sense to create a function to do this. To avoid confusion rename convert_slashes() to bs_to_slash() and call the new function slash_to_bs().
* win32: changes to user idsRon Yorston2019-03-101-6/+5
| | | | | | | | | | | | | | | | Formalise the use of 0 as the uid of a process running with elevated privileges: - Rewrite getuid(2) to return DEFAULT_UID by default and 0 if the process has elevated privileges. - geteuid(2) and the corresponding functions for groups are aliases for getuid(2). - Change root's home directory to be whatever GetSystemDirectory() returns, probably C:/Windows/System32 in most cases. - Remove the special handling of geteuid(2) in the line editing code. With these changes the shell started by 'su' is a lot more like a *nix root shell.
* su: change title of console windowRon Yorston2019-03-091-0/+1
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* win32: add a function to detect running with elevated privilegesRon Yorston2019-03-091-0/+1
| | | | | Add is_admin() and use it to alter the command prompt in the line editor when running with admin privileges.
* win32: canonicalize path in chdir(2)Ron Yorston2019-03-061-0/+2
| | | | | | | | | | | | Provide an implementation of chdir(2) which canonicalizes the path to resolve symlinks. Otherwise changing to a symlinked directory confuses 'ls -l' because it thinks '.' is a link rather than a directory. OTOH, using 'cd' in the shell to change to a symlinked directory now results in a mismatch between the shell's idea of where we are and what's displayed in the prompt. But upstream BusyBox does that too so it must be OK.
* win32: implement readlink(2)Ron Yorston2019-03-061-0/+4
| | | | | | | | | | Provide an implementation of readlink(2) based on code from Git for Windows. This version only supports symbolic links, not mount points, as the latter seem to work well enough as-is. With this change the ls and stat applets can display the targets of symbolic links. The readlink applet has been enabled in the default configuration.
* win32: drop argument from err_win_to_posix()Ron Yorston2019-03-061-1/+1
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* win32: let stat(2) report numeric uids for local usersRon Yorston2019-03-021-2/+2
| | | | | | | | | | | Further extend file identification so stat(2) returns the relative identifier as a numeric uid for files with owner SIDs that look like a local or domain user. See: https://blogs.technet.microsoft.com/markrussinovich/2009/11/03/the-machine-sid-duplication-myth-and-why-sysprep-matters/ https://cygwin.com/cygwin-ug-net/ntsec.html
* ash: updated support for hiding consoleRon Yorston2019-02-171-0/+1
| | | | | | | | Move the code to hide the console to a separate function in win32/mingw.c. Use lazy loading to avoid problems on platforms where the require APIs aren't supported (PR #70). Enable console hiding in the default 64-bit configuration.
* win32: make stat(2) fetch additional metadataRon Yorston2019-02-161-0/+3
| | | | | | | | | | | | | | | Modify the WIN32 implementation of stat(2) to fetch inode number, device id and number of hardlinks. This requires opening a handle to the target file so it will be slower. A number of features can be enabled or start to work: - tar can detect if an archive is being stored in itself; - find can support the -inum and -links options; - ls can display inode numbers; - diff can detect attempts to compare a file with itself; - du has better support for hardlinked files; - cp can detect attempts to copy a file over itself.
* win32: add a function to remove CRs from a text bufferRon Yorston2019-02-141-1/+2
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* win32: add support for the euro currency symbolRon Yorston2019-02-021-0/+1
| | | | | | | | | | | | | | | | | | | | | | The euro currency symbol was added to some OEM code pages. See: https://www.aivosto.com/articles/charsets-codepages-dos.html Add a configuration option (enabled by default) to support this. When enabled: - The read_key() function requests wide character key events. This allows the euro symbol to be entered regardless of the console OEM code page, though it needs to be available in the ANSI code page. - Conversions between OEM and ANSI code pages in winansi.c are modified to work around a bug in the Microsoft routines. - If the OEM code page is 850 when BusyBox starts it's changed to 858. This is the only currently supported OEM code page. Also, the shell read builtin is modified to use read_key() whenever input is being taken from the console.
* Update default configuration; compilation fixRon Yorston2019-01-101-0/+16
| | | | | Continue to use old version of dc; add definition of LONG_BIT from xopen_lim.h.
* win32: implement vsnprintf(2)Ron Yorston2019-01-081-0/+4
| | | | | The Microsoft C runtime may include a defective version of vsnprintf. Implement a standards-compliant replacement.
* win32: implement umask(2)Ron Yorston2019-01-071-0/+5
| | | | | | | | | umask() in the Microsoft C runtime takes different arguments to umask(2). Implement a fake umask(2) that remembers the mask and calls the Microsoft umask() with an appropriate value. Since the mask won't be inherited by children use an environment variable to pass any value set by the shell built-in umask.
* busybox: add --uninstall optionRon Yorston2019-01-051-0/+1
| | | | | | | | | | | | | | | | | | Add an option to allow hard links to be removed. busybox --uninstall file removes all hard links to the given file (including the file itself.) Since Microsoft Windows refuses to delete a running executable a BusyBox binary is unable to remove links to itself. busybox --uninstall -n file displays the names of all hard links to the given file. Although this feature is couched in terms of uninstalling BusyBox it's actually quite general: it can be used to delete or display hard links to any file.
* win32: special treatment for PATHRon Yorston2018-12-141-1/+0
| | | | | | | | | | | | | | | | | The PATH shell variable is a special case. It can be exported to the environment where it might be interpreted by native applications which assume the separator is ';'. Hence: - require that the separator used in PATH is ';' - enforce this by intercepting calls to setvareq() that set PATH and adjusting its value if necessary. As a result of this the code to parse PATH can be simplified by replacing the hardcoded Unix ':' path separator by the platform- dependent macro PATH_SEP. The MANPATH variable is also required to use ';' as its separator but since it's less likely to be used this isn't enforced.
* win32: emulate SIGPIPERon Yorston2018-12-111-0/+4
| | | | | | | | | | | | | | | | | | | The code to check whether a write error is due to a broken pipe can now either: - return with error EPIPE; - cause the process to exit with code 128+SIGPIPE. The default is the latter but the behaviour can be changed by issuing signal(SIGPIPE, SIG_IGN) and signal(SIGPIPE, SIG_DFL) calls. No actual signal is involved so kill can't send SIGPIPE and handlers other than SIG_IGN and SIG_DFL aren't supported. This does, however, avoid unsightly 'broken pipe' errors from commands like the example in GitHub issue #99: dd if=/dev/urandom | tr -dc _A-Z-a-z-0-9 | head -c${1:-32};echo;
* win32: add a case-insensitive version of is_suffixed_with()Ron Yorston2018-12-091-0/+1
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* lineedit: more case-insensitive comparisons in tab completionRon Yorston2018-12-081-0/+1
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* lineedit: improvements to tab completionRon Yorston2018-12-081-0/+2
| | | | | | | | | | Since getpwent isn't implemented for WIN32 there's no point in enabling FEATURE_USERNAME_COMPLETION. Use case-insensitive comparisons when matching filenames. The code to exclude non-executables when tab completing executables is WIN32-specific and shouldn't omit directories.
* win32: rework adding of extensions to filenamesRon Yorston2018-12-061-1/+10
| | | | | | | | | | | | | | | | | | | | | | | Previously there was one function to handle adding extensions to executable filenames, add_win32_extension(). Refactor this into three functions: add_win32_extension() appends the suffix to the argument string in-place. The argument must be long enough to cope with this, as is the case in ash where path_advance() adds 4 bytes to each filename for just this reason. alloc_win32_extension() is equivalent to the old add_win32_extension(). It allocates a string to hold the new filename then calls the new add_win32_extension() function. The caller is responsible for managing the returned string. auto_win32_extension() calls alloc_win32_extension() and saves the resulting string using auto_string(). It's used where the new filename is consumed immediately or the actual value isn't needed. Rewrite code to use the most appropriate function. Also reorder some code in find_executable() and find_command().
* win32: move function redefinitions to mingw.hRon Yorston2018-11-261-0/+6
| | | | | | The itoa and strrev functions have different prototypes in BusyBox and WIN32. Move the #defines which handle this to mingw.h, reducing differences between busybox-w32 and upstream.
* fsync: avoid a gratuitous difference from upstreamRon Yorston2018-04-031-0/+1
| | | | | Move the definition of O_NOCTTY to mingw.h so that fsync.c is the same as upstream.
* win32: improvements to get_terminal_width_heightRon Yorston2018-04-031-2/+0
| | | | | | | | - move winansi_get_terminal_width_height from winansi.c to ioctl.c, the only caller; - check both stdout and stderr for a connection to a console; - omit unnecessary code in get_terminal_width_height (because the WIN32 implementation ignores the file descriptor).
* win32: changes to kill(2)Ron Yorston2018-03-271-0/+2
| | | | | | | | | The names of the callbacks to kill processes with a given signal were confusing because they referred to the implementation rather than the intent. Create the new function kill_SIGTERM_by_handle which is more efficient when a handle to the process to be killed is already available.
* win32: save a few bytes in device file supportRon Yorston2018-03-231-2/+4
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* win32: add a function to convert backslashes to slashesRon Yorston2018-03-181-2/+1
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* win32: tidy up popen implementationRon Yorston2018-03-151-1/+0
| | | | | | | | | Make mingw_popen_fd sufficiently general that it can be used to implement the other two popen routines. mingw_popen now just creates a command line and passes it to mingw_popen_fd. The one call to mingw_popen2 has been replaced by a call to mingw_popen_fd.
* wget: add support for httpsRon Yorston2018-03-151-0/+1
| | | | | | | | | | | | | | | | Allow wget to support https URLs. Changes are: - Add mingw_popen2 which uses a named pipe to allow bidirectional communication with a child process; - Modify ssl_client to accept a WIN32 handle instead of a file descriptor as an argument; - Allow tls_get_random to open /dev/urandom; - Using the above changes implement a WIN32 version of spawn_ssl_client in wget. This closes GitHub issue #75. Also, enable authentication in wget.
* win32: restrict visibility of special devicesRon Yorston2018-03-151-0/+2
| | | | | | | | | | | | | | | Handling of the special devices /dev/zero and /dev/urandom was inconsistent: - they could be used as arguments to 'cat' but not 'od'; - they could not be used in shell redirection. Restrict the use of these devices to two places: - as input files to 'dd' with the 'if=' argument; - internally within 'shred'. See GitHub issue #98.
* Minor improvements to buildRon Yorston2018-03-021-1/+0
| | | | | | | | | | | | Exclude source files in libbb that aren't used by busybox-w32. This speeds up the build marginally. They can always be reinstated if necessary. Provide fake routines for everything in inode_hash.c so that it can be excluded. inode_hash.c is now unchanged from upstream. Use last_char_is in has_exe_suffix_or_dot. It doesn't save any bytes but it makes the code neater.
* Remove fake signal-handling codeRon Yorston2018-03-011-28/+0
| | | | | | | | | Microsoft Windows has only limited support for signals. busybox-w32 initially papered over this fact by adding definitions for unsupported signals and signal-handling functions. Remove this fake code and deal with the consequences by excluding anything that fails to compile as a result.
* win32: make has_exec_format staticRon Yorston2018-03-011-1/+0
| | | | The only other caller (in spawnveq) has been removed.
* win32: don't add extensions to filenames ending with a dotRon Yorston2018-02-281-1/+2
| | | | | | | A filename ending with a dot is a signal to spawnve not to try adding extensions but to use the name unmodified. The add_win32_extension function should follow the same rule.
* win32: move detection of file formats to stat(2)Ron Yorston2018-02-261-1/+2
| | | | | | | | | | | | | | | | | | | | | Move the code to detect shell scripts and binary executables from mingw_access to a separate function, has_exec_format. Call this function in do_lstat to decide whether to set the executable bits in the file mode. This will slow down stat but has a couple of advantages: - shell scripts are highlighted in ls output - the test applet can use stat(2) to detect executable files The new function is used to handle another corner case in spawnveq: binary executables without the usual .exe extension are only run by spawnve if the file name ends with '.'. Two minor changes: - file_is_win32_executable has been renamed add_win32_extension to clarify what it does - a call to file_is_executable has been removed from find_command in ash as it resulted in unhelpful error messages.
* win32: add support for batch filesRon Yorston2018-02-261-0/+1
| | | | | | | | Support batch files with .bat and .cmd extensions, similar to what's done for .exe and .com. Check extensions in the same order as Windows' spawn function: .com, .exe, .bat, .cmd.
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