2021-08-25 14:40:53 +03:00
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module os
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2021-08-26 07:13:10 +03:00
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#include <sys/stat.h> // #include <signal.h>
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#include <errno.h>
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pub const (
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args = []string{}
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)
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fn C.readdir(voidptr) &C.dirent
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2021-09-08 13:09:32 +03:00
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fn C.readlink(pathname &char, buf &char, bufsiz usize) int
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2021-08-26 07:13:10 +03:00
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fn C.getline(voidptr, voidptr, voidptr) int
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fn C.ftell(fp voidptr) i64
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fn C.sigaction(int, voidptr, int) int
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fn C.open(&char, int, ...int) int
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fn C.fdopen(fd int, mode &char) &C.FILE
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fn C.ferror(stream &C.FILE) int
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fn C.feof(stream &C.FILE) int
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fn C.CopyFile(&u16, &u16, bool) int
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// fn C.lstat(charptr, voidptr) u64
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fn C._wstat64(&u16, voidptr) u64
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fn C.chown(&char, int, int) int
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fn C.ftruncate(voidptr, u64) int
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fn C._chsize_s(voidptr, u64) int
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// read_bytes returns all bytes read from file in `path`.
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[manualfree]
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2022-04-15 14:58:56 +03:00
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pub fn read_bytes(path string) ?[]u8 {
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2022-05-13 06:56:21 +03:00
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mut fp := vfopen(path, 'rb')?
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2021-08-26 07:13:10 +03:00
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defer {
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C.fclose(fp)
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}
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cseek := C.fseek(fp, 0, C.SEEK_END)
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if cseek != 0 {
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return error('fseek failed')
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}
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fsize := C.ftell(fp)
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if fsize < 0 {
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return error('ftell failed')
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}
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2021-10-03 18:24:06 +03:00
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len := int(fsize)
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// On some systems C.ftell can return values in the 64-bit range
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// that, when cast to `int`, can result in values below 0.
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if i64(len) < fsize {
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return error('$fsize cast to int results in ${int(fsize)})')
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}
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2021-08-26 07:13:10 +03:00
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C.rewind(fp)
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2022-04-15 14:58:56 +03:00
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mut res := []u8{len: len}
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2021-10-03 18:24:06 +03:00
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nr_read_elements := int(C.fread(res.data, len, 1, fp))
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2021-08-26 07:13:10 +03:00
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if nr_read_elements == 0 && fsize > 0 {
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return error('fread failed')
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}
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2021-10-03 18:24:06 +03:00
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res.trim(nr_read_elements * len)
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2021-08-26 07:13:10 +03:00
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return res
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}
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// read_file reads the file in `path` and returns the contents.
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pub fn read_file(path string) ?string {
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mode := 'rb'
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2022-05-13 06:56:21 +03:00
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mut fp := vfopen(path, mode)?
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2021-08-26 07:13:10 +03:00
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defer {
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C.fclose(fp)
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}
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cseek := C.fseek(fp, 0, C.SEEK_END)
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if cseek != 0 {
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return error('fseek failed')
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}
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fsize := C.ftell(fp)
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if fsize < 0 {
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return error('ftell failed')
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}
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// C.fseek(fp, 0, SEEK_SET) // same as `C.rewind(fp)` below
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C.rewind(fp)
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2021-10-03 18:24:06 +03:00
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allocate := int(fsize)
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// On some systems C.ftell can return values in the 64-bit range
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// that, when cast to `int`, can result in values below 0.
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if i64(allocate) < fsize {
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return error('$fsize cast to int results in ${int(fsize)})')
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}
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2021-08-26 07:13:10 +03:00
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unsafe {
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2021-10-03 18:24:06 +03:00
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mut str := malloc_noscan(allocate + 1)
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nelements := int(C.fread(str, 1, allocate, fp))
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2021-08-26 07:13:10 +03:00
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is_eof := int(C.feof(fp))
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is_error := int(C.ferror(fp))
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if is_eof == 0 && is_error != 0 {
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free(str)
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return error('fread failed')
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}
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str[nelements] = 0
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if nelements == 0 {
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// It is highly likely that the file was a virtual file from
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// /sys or /proc, with information generated on the fly, so
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// fsize was not reliably reported. Using vstring() here is
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// slower (it calls strlen internally), but will return more
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// consistent results.
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// For example reading from /sys/class/sound/card0/id produces
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// a `PCH\n` string, but fsize is 4096, and otherwise you would
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// get a V string with .len = 4096 and .str = "PCH\n\\000".
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return str.vstring()
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}
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return str.vstring_with_len(nelements)
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}
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}
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// ***************************** OS ops ************************
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//
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// truncate changes the size of the file located in `path` to `len`.
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// Note that changing symbolic links on Windows only works as admin.
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pub fn truncate(path string, len u64) ? {
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fp := C.open(&char(path.str), o_wronly | o_trunc, 0)
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defer {
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C.close(fp)
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}
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if fp < 0 {
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return error_with_code(posix_get_error_msg(C.errno), C.errno)
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}
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$if windows {
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if C._chsize_s(fp, len) != 0 {
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return error_with_code(posix_get_error_msg(C.errno), C.errno)
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}
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} $else {
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if C.ftruncate(fp, len) != 0 {
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return error_with_code(posix_get_error_msg(C.errno), C.errno)
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}
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}
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}
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fn eprintln_unknown_file_size() {
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eprintln('os.file_size() Cannot determine file-size: ' + posix_get_error_msg(C.errno))
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}
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// file_size returns the size of the file located in `path`.
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// If an error occurs it returns 0.
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// Note that use of this on symbolic links on Windows returns always 0.
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pub fn file_size(path string) u64 {
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mut s := C.stat{}
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unsafe {
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$if x64 {
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$if windows {
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mut swin := C.__stat64{}
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if C._wstat64(path.to_wide(), voidptr(&swin)) != 0 {
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eprintln_unknown_file_size()
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return 0
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}
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return swin.st_size
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} $else {
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if C.stat(&char(path.str), &s) != 0 {
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eprintln_unknown_file_size()
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return 0
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}
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return u64(s.st_size)
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}
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}
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$if x32 {
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$if debug {
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eprintln('Using os.file_size() on 32bit systems may not work on big files.')
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}
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$if windows {
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if C._wstat(path.to_wide(), voidptr(&s)) != 0 {
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eprintln_unknown_file_size()
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return 0
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}
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return u64(s.st_size)
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} $else {
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if C.stat(&char(path.str), &s) != 0 {
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eprintln_unknown_file_size()
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return 0
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}
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return u64(s.st_size)
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}
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}
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}
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return 0
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}
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// mv moves files or folders from `src` to `dst`.
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pub fn mv(src string, dst string) ? {
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mut rdst := dst
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if is_dir(rdst) {
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2021-11-22 15:40:55 +03:00
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rdst = join_path_single(rdst.trim_right(path_separator), file_name(src.trim_right(path_separator)))
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2021-08-26 07:13:10 +03:00
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}
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$if windows {
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w_src := src.replace('/', '\\')
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w_dst := rdst.replace('/', '\\')
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ret := C._wrename(w_src.to_wide(), w_dst.to_wide())
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if ret != 0 {
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return error_with_code('failed to rename $src to $dst', int(ret))
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}
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} $else {
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ret := C.rename(&char(src.str), &char(rdst.str))
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if ret != 0 {
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2022-04-04 16:22:34 +03:00
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return error_with_code('failed to rename $src to $dst', ret)
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2021-08-26 07:13:10 +03:00
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}
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}
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}
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// cp copies files or folders from `src` to `dst`.
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pub fn cp(src string, dst string) ? {
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$if windows {
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w_src := src.replace('/', '\\')
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w_dst := dst.replace('/', '\\')
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if C.CopyFile(w_src.to_wide(), w_dst.to_wide(), false) == 0 {
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result := C.GetLastError()
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return error_with_code('failed to copy $src to $dst', int(result))
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}
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} $else {
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fp_from := C.open(&char(src.str), C.O_RDONLY, 0)
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if fp_from < 0 { // Check if file opened
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return error_with_code('cp: failed to open $src', int(fp_from))
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}
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fp_to := C.open(&char(dst.str), C.O_WRONLY | C.O_CREAT | C.O_TRUNC, C.S_IWUSR | C.S_IRUSR)
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if fp_to < 0 { // Check if file opened (permissions problems ...)
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C.close(fp_from)
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return error_with_code('cp (permission): failed to write to $dst (fp_to: $fp_to)',
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int(fp_to))
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}
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// TODO use defer{} to close files in case of error or return.
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// Currently there is a C-Error when building.
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2022-04-15 14:45:52 +03:00
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mut buf := [1024]u8{}
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2021-08-26 07:13:10 +03:00
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mut count := 0
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for {
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count = C.read(fp_from, &buf[0], sizeof(buf))
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if count == 0 {
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break
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}
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if C.write(fp_to, &buf[0], count) < 0 {
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C.close(fp_to)
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C.close(fp_from)
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return error_with_code('cp: failed to write to $dst', int(-1))
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}
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}
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from_attr := C.stat{}
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unsafe {
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C.stat(&char(src.str), &from_attr)
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}
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if C.chmod(&char(dst.str), from_attr.st_mode) < 0 {
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C.close(fp_to)
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C.close(fp_from)
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return error_with_code('failed to set permissions for $dst', int(-1))
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}
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C.close(fp_to)
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C.close(fp_from)
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}
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}
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// vfopen returns an opened C file, given its path and open mode.
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2022-03-06 20:01:22 +03:00
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// Note: os.vfopen is useful for compatibility with C libraries, that expect `FILE *`.
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2021-08-26 07:13:10 +03:00
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// If you write pure V code, os.create or os.open are more convenient.
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pub fn vfopen(path string, mode string) ?&C.FILE {
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if path.len == 0 {
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return error('vfopen called with ""')
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}
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2022-07-21 21:01:30 +03:00
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mut fp := unsafe { nil }
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2021-08-26 07:13:10 +03:00
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$if windows {
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fp = C._wfopen(path.to_wide(), mode.to_wide())
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} $else {
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fp = C.fopen(&char(path.str), &char(mode.str))
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}
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if isnil(fp) {
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return error('failed to open file "$path"')
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} else {
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return fp
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}
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}
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// fileno returns the file descriptor of an opened C file.
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pub fn fileno(cfile voidptr) int {
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$if windows {
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return C._fileno(cfile)
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} $else {
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mut cfile_casted := &C.FILE(0) // FILE* cfile_casted = 0;
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cfile_casted = cfile
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// Required on FreeBSD/OpenBSD/NetBSD as stdio.h defines fileno(..) with a macro
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// that performs a field access on its argument without casting from void*.
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return C.fileno(cfile_casted)
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}
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}
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// vpopen system starts the specified command, waits for it to complete, and returns its code.
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fn vpopen(path string) voidptr {
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// *C.FILE {
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$if windows {
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mode := 'rb'
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wpath := path.to_wide()
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return C._wpopen(wpath, mode.to_wide())
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} $else {
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cpath := path.str
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return C.popen(&char(cpath), c'r')
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}
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}
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fn posix_wait4_to_exit_status(waitret int) (int, bool) {
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$if windows {
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return waitret, false
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} $else {
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mut ret := 0
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mut is_signaled := true
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// (see man system, man 2 waitpid: C macro WEXITSTATUS section)
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if C.WIFEXITED(waitret) {
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ret = C.WEXITSTATUS(waitret)
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is_signaled = false
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} else if C.WIFSIGNALED(waitret) {
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ret = C.WTERMSIG(waitret)
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is_signaled = true
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}
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return ret, is_signaled
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}
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}
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// posix_get_error_msg return error code representation in string.
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pub fn posix_get_error_msg(code int) string {
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ptr_text := C.strerror(code) // voidptr?
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if ptr_text == 0 {
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return ''
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}
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return unsafe { tos3(ptr_text) }
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}
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// vpclose will close a file pointer opened with `vpopen`.
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fn vpclose(f voidptr) int {
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$if windows {
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return C._pclose(f)
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} $else {
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ret, _ := posix_wait4_to_exit_status(C.pclose(f))
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return ret
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}
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}
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// system works like `exec`, but only returns a return code.
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|
pub fn system(cmd string) int {
|
|
|
|
// if cmd.contains(';') || cmd.contains('&&') || cmd.contains('||') || cmd.contains('\n') {
|
|
|
|
// TODO remove panic
|
|
|
|
// panic(';, &&, || and \\n are not allowed in shell commands')
|
|
|
|
// }
|
|
|
|
mut ret := 0
|
|
|
|
$if windows {
|
|
|
|
// overcome bug in system & _wsystem (cmd) when first char is quote `"`
|
|
|
|
wcmd := if cmd.len > 1 && cmd[0] == `"` && cmd[1] != `"` { '"$cmd"' } else { cmd }
|
|
|
|
unsafe {
|
|
|
|
ret = C._wsystem(wcmd.to_wide())
|
|
|
|
}
|
|
|
|
} $else {
|
|
|
|
$if ios {
|
|
|
|
unsafe {
|
2022-04-15 14:58:56 +03:00
|
|
|
arg := [c'/bin/sh', c'-c', &u8(cmd.str), 0]
|
2021-08-26 07:13:10 +03:00
|
|
|
pid := 0
|
|
|
|
ret = C.posix_spawn(&pid, c'/bin/sh', 0, 0, arg.data, 0)
|
|
|
|
status := 0
|
|
|
|
ret = C.waitpid(pid, &status, 0)
|
|
|
|
if C.WIFEXITED(status) {
|
|
|
|
ret = C.WEXITSTATUS(status)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
} $else {
|
|
|
|
unsafe {
|
|
|
|
ret = C.system(&char(cmd.str))
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if ret == -1 {
|
|
|
|
print_c_errno()
|
|
|
|
}
|
|
|
|
$if !windows {
|
|
|
|
pret, is_signaled := posix_wait4_to_exit_status(ret)
|
|
|
|
if is_signaled {
|
|
|
|
println('Terminated by signal ${ret:2d} (' + sigint_to_signal_name(pret) + ')')
|
|
|
|
}
|
|
|
|
ret = pret
|
|
|
|
}
|
|
|
|
return ret
|
|
|
|
}
|
|
|
|
|
|
|
|
// exists returns true if `path` (file or directory) exists.
|
|
|
|
pub fn exists(path string) bool {
|
|
|
|
$if windows {
|
|
|
|
p := path.replace('/', '\\')
|
|
|
|
return C._waccess(p.to_wide(), f_ok) != -1
|
|
|
|
} $else {
|
|
|
|
return C.access(&char(path.str), f_ok) != -1
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// is_executable returns `true` if `path` is executable.
|
2022-07-26 12:02:48 +03:00
|
|
|
// Warning: `is_executable()` is known to cause a TOCTOU vulnerability when used incorrectly
|
|
|
|
// (for more information: https://github.com/vlang/v/blob/master/vlib/os/README.md)
|
2021-08-26 07:13:10 +03:00
|
|
|
pub fn is_executable(path string) bool {
|
|
|
|
$if windows {
|
2022-03-06 20:01:22 +03:00
|
|
|
// Note: https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/access-waccess?view=vs-2019
|
2021-08-26 07:13:10 +03:00
|
|
|
// i.e. there is no X bit there, the modes can be:
|
|
|
|
// 00 Existence only
|
|
|
|
// 02 Write-only
|
|
|
|
// 04 Read-only
|
|
|
|
// 06 Read and write
|
|
|
|
p := real_path(path)
|
2022-06-23 20:12:29 +03:00
|
|
|
return exists(p) && (p.ends_with('.exe') || p.ends_with('.bat') || p.ends_with('.cmd'))
|
2021-08-26 07:13:10 +03:00
|
|
|
}
|
|
|
|
$if solaris {
|
|
|
|
statbuf := C.stat{}
|
|
|
|
unsafe {
|
|
|
|
if C.stat(&char(path.str), &statbuf) != 0 {
|
|
|
|
return false
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return (int(statbuf.st_mode) & (s_ixusr | s_ixgrp | s_ixoth)) != 0
|
|
|
|
}
|
|
|
|
return C.access(&char(path.str), x_ok) != -1
|
|
|
|
}
|
|
|
|
|
|
|
|
// is_writable returns `true` if `path` is writable.
|
2022-07-26 12:02:48 +03:00
|
|
|
// Warning: `is_writable()` is known to cause a TOCTOU vulnerability when used incorrectly
|
|
|
|
// (for more information: https://github.com/vlang/v/blob/master/vlib/os/README.md)
|
2021-10-29 15:49:30 +03:00
|
|
|
[manualfree]
|
2021-08-26 07:13:10 +03:00
|
|
|
pub fn is_writable(path string) bool {
|
|
|
|
$if windows {
|
|
|
|
p := path.replace('/', '\\')
|
2021-10-29 15:49:30 +03:00
|
|
|
wp := p.to_wide()
|
|
|
|
res := C._waccess(wp, w_ok) != -1
|
2021-10-29 17:12:05 +03:00
|
|
|
unsafe { free(wp) } // &u16
|
2021-10-29 15:49:30 +03:00
|
|
|
unsafe { p.free() }
|
|
|
|
return res
|
2021-08-26 07:13:10 +03:00
|
|
|
} $else {
|
|
|
|
return C.access(&char(path.str), w_ok) != -1
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// is_readable returns `true` if `path` is readable.
|
2022-07-26 12:02:48 +03:00
|
|
|
// Warning: `is_readable()` is known to cause a TOCTOU vulnerability when used incorrectly
|
|
|
|
// (for more information: https://github.com/vlang/v/blob/master/vlib/os/README.md)
|
2021-10-29 15:49:30 +03:00
|
|
|
[manualfree]
|
2021-08-26 07:13:10 +03:00
|
|
|
pub fn is_readable(path string) bool {
|
|
|
|
$if windows {
|
|
|
|
p := path.replace('/', '\\')
|
2021-10-29 15:49:30 +03:00
|
|
|
wp := p.to_wide()
|
|
|
|
res := C._waccess(wp, r_ok) != -1
|
2021-10-29 17:12:05 +03:00
|
|
|
unsafe { free(wp) } // &u16
|
2021-10-29 15:49:30 +03:00
|
|
|
unsafe { p.free() }
|
|
|
|
return res
|
2021-08-26 07:13:10 +03:00
|
|
|
} $else {
|
|
|
|
return C.access(&char(path.str), r_ok) != -1
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// rm removes file in `path`.
|
|
|
|
pub fn rm(path string) ? {
|
|
|
|
mut rc := 0
|
|
|
|
$if windows {
|
|
|
|
rc = C._wremove(path.to_wide())
|
|
|
|
} $else {
|
|
|
|
rc = C.remove(&char(path.str))
|
|
|
|
}
|
|
|
|
if rc == -1 {
|
|
|
|
return error('Failed to remove "$path": ' + posix_get_error_msg(C.errno))
|
|
|
|
}
|
|
|
|
// C.unlink(path.cstr())
|
|
|
|
}
|
|
|
|
|
|
|
|
// rmdir removes a specified directory.
|
|
|
|
pub fn rmdir(path string) ? {
|
|
|
|
$if windows {
|
|
|
|
rc := C.RemoveDirectory(path.to_wide())
|
|
|
|
if rc == 0 {
|
|
|
|
// https://docs.microsoft.com/en-us/windows/win32/api/fileapi/nf-fileapi-removedirectorya - 0 is failure
|
|
|
|
return error('Failed to remove "$path": ' + posix_get_error_msg(C.errno))
|
|
|
|
}
|
|
|
|
} $else {
|
|
|
|
rc := C.rmdir(&char(path.str))
|
|
|
|
if rc == -1 {
|
|
|
|
return error(posix_get_error_msg(C.errno))
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// print_c_errno will print the current value of `C.errno`.
|
|
|
|
fn print_c_errno() {
|
|
|
|
e := C.errno
|
2022-04-15 14:58:56 +03:00
|
|
|
se := unsafe { tos_clone(&u8(C.strerror(e))) }
|
2021-08-26 07:13:10 +03:00
|
|
|
println('errno=$e err=$se')
|
|
|
|
}
|
|
|
|
|
|
|
|
// get_raw_line returns a one-line string from stdin along with '\n' if there is any.
|
|
|
|
pub fn get_raw_line() string {
|
|
|
|
$if windows {
|
|
|
|
unsafe {
|
|
|
|
max_line_chars := 256
|
|
|
|
buf := malloc_noscan(max_line_chars * 2)
|
|
|
|
h_input := C.GetStdHandle(C.STD_INPUT_HANDLE)
|
|
|
|
mut bytes_read := u32(0)
|
|
|
|
if is_atty(0) > 0 {
|
|
|
|
x := C.ReadConsole(h_input, buf, max_line_chars * 2, &bytes_read, 0)
|
|
|
|
if !x {
|
|
|
|
return tos(buf, 0)
|
|
|
|
}
|
|
|
|
return string_from_wide2(&u16(buf), int(bytes_read))
|
|
|
|
}
|
|
|
|
mut offset := 0
|
|
|
|
for {
|
|
|
|
pos := buf + offset
|
|
|
|
res := C.ReadFile(h_input, pos, 1, C.LPDWORD(&bytes_read), 0)
|
|
|
|
if !res && offset == 0 {
|
|
|
|
return tos(buf, 0)
|
|
|
|
}
|
|
|
|
if !res || bytes_read == 0 {
|
|
|
|
break
|
|
|
|
}
|
2022-07-25 08:03:07 +03:00
|
|
|
if *pos == `\n` {
|
2021-08-26 07:13:10 +03:00
|
|
|
offset++
|
|
|
|
break
|
|
|
|
}
|
|
|
|
offset++
|
|
|
|
}
|
|
|
|
return buf.vstring_with_len(offset)
|
|
|
|
}
|
|
|
|
} $else {
|
2021-09-08 13:09:32 +03:00
|
|
|
max := usize(0)
|
2021-08-26 07:13:10 +03:00
|
|
|
buf := &char(0)
|
|
|
|
nr_chars := unsafe { C.getline(&buf, &max, C.stdin) }
|
2022-04-15 14:58:56 +03:00
|
|
|
return unsafe { tos(&u8(buf), if nr_chars < 0 { 0 } else { nr_chars }) }
|
2021-08-26 07:13:10 +03:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// get_raw_stdin will get the raw input from stdin.
|
2022-04-15 14:58:56 +03:00
|
|
|
pub fn get_raw_stdin() []u8 {
|
2021-08-26 07:13:10 +03:00
|
|
|
$if windows {
|
|
|
|
unsafe {
|
|
|
|
block_bytes := 512
|
|
|
|
mut old_size := block_bytes
|
|
|
|
mut buf := malloc_noscan(block_bytes)
|
|
|
|
h_input := C.GetStdHandle(C.STD_INPUT_HANDLE)
|
|
|
|
mut bytes_read := 0
|
|
|
|
mut offset := 0
|
|
|
|
for {
|
|
|
|
pos := buf + offset
|
|
|
|
res := C.ReadFile(h_input, pos, block_bytes, C.LPDWORD(&bytes_read), 0)
|
|
|
|
offset += bytes_read
|
|
|
|
if !res {
|
|
|
|
break
|
|
|
|
}
|
|
|
|
new_size := offset + block_bytes + (block_bytes - bytes_read)
|
|
|
|
buf = realloc_data(buf, old_size, new_size)
|
|
|
|
old_size = new_size
|
|
|
|
}
|
|
|
|
return array{
|
|
|
|
element_size: 1
|
|
|
|
data: voidptr(buf)
|
|
|
|
len: offset
|
|
|
|
cap: offset
|
|
|
|
}
|
|
|
|
}
|
|
|
|
} $else {
|
2021-09-08 13:09:32 +03:00
|
|
|
max := usize(0)
|
2021-08-26 07:13:10 +03:00
|
|
|
buf := &char(0)
|
|
|
|
nr_chars := unsafe { C.getline(&buf, &max, C.stdin) }
|
|
|
|
return array{
|
|
|
|
element_size: 1
|
|
|
|
data: voidptr(buf)
|
|
|
|
len: if nr_chars < 0 { 0 } else { nr_chars }
|
|
|
|
cap: int(max)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// read_file_array reads an array of `T` values from file `path`.
|
|
|
|
pub fn read_file_array<T>(path string) []T {
|
|
|
|
a := T{}
|
|
|
|
tsize := int(sizeof(a))
|
|
|
|
// prepare for reading, get current file size
|
|
|
|
mut fp := vfopen(path, 'rb') or { return []T{} }
|
|
|
|
C.fseek(fp, 0, C.SEEK_END)
|
|
|
|
fsize := C.ftell(fp)
|
|
|
|
C.rewind(fp)
|
|
|
|
// read the actual data from the file
|
|
|
|
len := fsize / tsize
|
2021-10-03 18:24:06 +03:00
|
|
|
allocate := int(fsize)
|
|
|
|
// On some systems C.ftell can return values in the 64-bit range
|
|
|
|
// that, when cast to `int`, can result in values below 0.
|
|
|
|
if i64(allocate) < fsize {
|
|
|
|
panic('$fsize cast to int results in ${int(fsize)})')
|
|
|
|
}
|
|
|
|
buf := unsafe {
|
|
|
|
malloc_noscan(allocate)
|
|
|
|
}
|
2021-08-26 07:13:10 +03:00
|
|
|
nread := C.fread(buf, tsize, len, fp)
|
|
|
|
C.fclose(fp)
|
|
|
|
return unsafe {
|
|
|
|
array{
|
|
|
|
element_size: tsize
|
|
|
|
data: buf
|
|
|
|
len: int(nread)
|
|
|
|
cap: int(len)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// executable returns the path name of the executable that started the current
|
|
|
|
// process.
|
|
|
|
[manualfree]
|
|
|
|
pub fn executable() string {
|
2022-08-17 17:06:38 +03:00
|
|
|
mut result := [max_path_buffer_size]u8{}
|
2021-08-26 07:13:10 +03:00
|
|
|
$if windows {
|
2022-08-17 18:40:15 +03:00
|
|
|
pu16_result := unsafe { &u16(&result[0]) }
|
2021-11-22 11:32:10 +03:00
|
|
|
len := C.GetModuleFileName(0, pu16_result, 512)
|
2021-08-26 07:13:10 +03:00
|
|
|
// determine if the file is a windows symlink
|
2021-11-22 11:32:10 +03:00
|
|
|
attrs := C.GetFileAttributesW(pu16_result)
|
2021-08-26 07:13:10 +03:00
|
|
|
is_set := attrs & 0x400 // FILE_ATTRIBUTE_REPARSE_POINT
|
|
|
|
if is_set != 0 { // it's a windows symlink
|
|
|
|
// gets handle with GENERIC_READ, FILE_SHARE_READ, 0, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0
|
2021-11-22 11:32:10 +03:00
|
|
|
file := C.CreateFile(pu16_result, 0x80000000, 1, 0, 3, 0x80, 0)
|
2021-08-26 07:13:10 +03:00
|
|
|
if file != voidptr(-1) {
|
2021-11-22 11:32:10 +03:00
|
|
|
defer {
|
|
|
|
C.CloseHandle(file)
|
|
|
|
}
|
2022-08-17 17:06:38 +03:00
|
|
|
final_path := [max_path_buffer_size]u8{}
|
2021-08-26 07:13:10 +03:00
|
|
|
// https://docs.microsoft.com/en-us/windows/win32/api/fileapi/nf-fileapi-getfinalpathnamebyhandlew
|
2022-08-17 18:40:15 +03:00
|
|
|
final_len := C.GetFinalPathNameByHandleW(file, unsafe { &u16(&final_path[0]) },
|
2022-08-17 17:06:38 +03:00
|
|
|
max_path_buffer_size, 0)
|
|
|
|
if final_len < max_path_buffer_size {
|
2022-08-17 18:40:15 +03:00
|
|
|
sret := unsafe { string_from_wide2(&u16(&final_path[0]), final_len) }
|
2021-11-22 11:32:10 +03:00
|
|
|
defer {
|
2021-11-22 12:07:26 +03:00
|
|
|
unsafe { sret.free() }
|
2021-11-22 11:32:10 +03:00
|
|
|
}
|
2021-08-26 07:13:10 +03:00
|
|
|
// remove '\\?\' from beginning (see link above)
|
2021-11-22 12:07:26 +03:00
|
|
|
sret_slice := sret[4..]
|
|
|
|
res := sret_slice.clone()
|
2021-11-22 11:32:10 +03:00
|
|
|
return res
|
2021-08-26 07:13:10 +03:00
|
|
|
} else {
|
|
|
|
eprintln('os.executable() saw that the executable file path was too long')
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
2021-11-22 11:32:10 +03:00
|
|
|
res := unsafe { string_from_wide2(pu16_result, len) }
|
|
|
|
return res
|
2021-08-26 07:13:10 +03:00
|
|
|
}
|
|
|
|
$if macos {
|
|
|
|
pid := C.getpid()
|
2022-08-17 18:40:15 +03:00
|
|
|
ret := proc_pidpath(pid, &result[0], max_path_len)
|
2021-08-26 07:13:10 +03:00
|
|
|
if ret <= 0 {
|
|
|
|
eprintln('os.executable() failed at calling proc_pidpath with pid: $pid . proc_pidpath returned $ret ')
|
|
|
|
return executable_fallback()
|
|
|
|
}
|
2022-08-17 18:40:15 +03:00
|
|
|
res := unsafe { tos_clone(&result[0]) }
|
2021-10-29 15:49:30 +03:00
|
|
|
return res
|
2021-08-26 07:13:10 +03:00
|
|
|
}
|
|
|
|
$if freebsd {
|
2022-08-17 17:06:38 +03:00
|
|
|
bufsize := usize(max_path_buffer_size)
|
2021-08-26 07:13:10 +03:00
|
|
|
mib := [1 /* CTL_KERN */, 14 /* KERN_PROC */, 12 /* KERN_PROC_PATHNAME */, -1]
|
2022-08-17 18:40:15 +03:00
|
|
|
unsafe { C.sysctl(mib.data, mib.len, &result[0], &bufsize, 0, 0) }
|
|
|
|
res := unsafe { tos_clone(&result[0]) }
|
2021-10-29 15:49:30 +03:00
|
|
|
return res
|
2021-08-26 07:13:10 +03:00
|
|
|
}
|
|
|
|
$if netbsd {
|
2022-08-17 18:40:15 +03:00
|
|
|
count := C.readlink(c'/proc/curproc/exe', &char(&result[0]), max_path_len)
|
2021-08-26 07:13:10 +03:00
|
|
|
if count < 0 {
|
|
|
|
eprintln('os.executable() failed at reading /proc/curproc/exe to get exe path')
|
|
|
|
return executable_fallback()
|
|
|
|
}
|
2022-08-17 18:40:15 +03:00
|
|
|
res := unsafe { tos_clone(&result[0]) }
|
2021-10-29 15:49:30 +03:00
|
|
|
return res
|
2021-08-26 07:13:10 +03:00
|
|
|
}
|
|
|
|
$if dragonfly {
|
2022-08-17 18:40:15 +03:00
|
|
|
count := C.readlink(c'/proc/curproc/file', &char(&result[0]), max_path_len)
|
2021-08-26 07:13:10 +03:00
|
|
|
if count < 0 {
|
|
|
|
eprintln('os.executable() failed at reading /proc/curproc/file to get exe path')
|
|
|
|
return executable_fallback()
|
|
|
|
}
|
2022-08-17 18:40:15 +03:00
|
|
|
res := unsafe { tos_clone(&result[0]) }
|
2021-10-29 15:49:30 +03:00
|
|
|
return res
|
2021-08-26 07:13:10 +03:00
|
|
|
}
|
2021-11-22 11:32:10 +03:00
|
|
|
$if linux {
|
2022-08-17 18:40:15 +03:00
|
|
|
count := C.readlink(c'/proc/self/exe', &char(&result[0]), max_path_len)
|
2021-11-22 11:32:10 +03:00
|
|
|
if count < 0 {
|
|
|
|
eprintln('os.executable() failed at reading /proc/self/exe to get exe path')
|
|
|
|
return executable_fallback()
|
|
|
|
}
|
2022-08-17 18:40:15 +03:00
|
|
|
res := unsafe { tos_clone(&result[0]) }
|
2021-11-22 11:32:10 +03:00
|
|
|
return res
|
|
|
|
}
|
|
|
|
// "Sadly there is no way to get the full path of the executed file in OpenBSD."
|
|
|
|
$if openbsd {
|
|
|
|
}
|
|
|
|
$if solaris {
|
|
|
|
}
|
|
|
|
$if haiku {
|
|
|
|
}
|
2021-08-26 07:13:10 +03:00
|
|
|
return executable_fallback()
|
|
|
|
}
|
|
|
|
|
|
|
|
// is_dir returns a `bool` indicating whether the given `path` is a directory.
|
|
|
|
pub fn is_dir(path string) bool {
|
|
|
|
$if windows {
|
|
|
|
w_path := path.replace('/', '\\')
|
|
|
|
attr := C.GetFileAttributesW(w_path.to_wide())
|
|
|
|
if attr == u32(C.INVALID_FILE_ATTRIBUTES) {
|
|
|
|
return false
|
|
|
|
}
|
|
|
|
if int(attr) & C.FILE_ATTRIBUTE_DIRECTORY != 0 {
|
|
|
|
return true
|
|
|
|
}
|
|
|
|
return false
|
|
|
|
} $else {
|
|
|
|
statbuf := C.stat{}
|
|
|
|
if unsafe { C.stat(&char(path.str), &statbuf) } != 0 {
|
|
|
|
return false
|
|
|
|
}
|
|
|
|
// ref: https://code.woboq.org/gcc/include/sys/stat.h.html
|
|
|
|
val := int(statbuf.st_mode) & s_ifmt
|
|
|
|
return val == s_ifdir
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// is_link returns a boolean indicating whether `path` is a link.
|
2022-07-26 12:02:48 +03:00
|
|
|
// Warning: `is_link()` is known to cause a TOCTOU vulnerability when used incorrectly
|
|
|
|
// (for more information: https://github.com/vlang/v/blob/master/vlib/os/README.md)
|
2021-08-26 07:13:10 +03:00
|
|
|
pub fn is_link(path string) bool {
|
|
|
|
$if windows {
|
|
|
|
path_ := path.replace('/', '\\')
|
|
|
|
attr := C.GetFileAttributesW(path_.to_wide())
|
|
|
|
return int(attr) != int(C.INVALID_FILE_ATTRIBUTES) && (attr & 0x400) != 0
|
|
|
|
} $else {
|
|
|
|
statbuf := C.stat{}
|
|
|
|
if C.lstat(&char(path.str), &statbuf) != 0 {
|
|
|
|
return false
|
|
|
|
}
|
|
|
|
return int(statbuf.st_mode) & s_ifmt == s_iflnk
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2022-08-22 17:10:46 +03:00
|
|
|
struct PathKind {
|
|
|
|
mut:
|
|
|
|
is_dir bool
|
|
|
|
is_link bool
|
|
|
|
}
|
|
|
|
|
|
|
|
fn kind_of_existing_path(path string) PathKind {
|
|
|
|
mut res := PathKind{}
|
|
|
|
$if windows {
|
|
|
|
attr := C.GetFileAttributesW(path.to_wide())
|
|
|
|
if attr != u32(C.INVALID_FILE_ATTRIBUTES) {
|
|
|
|
if (int(attr) & C.FILE_ATTRIBUTE_DIRECTORY) != 0 {
|
|
|
|
res.is_dir = true
|
|
|
|
}
|
|
|
|
if (int(attr) & 0x400) != 0 {
|
|
|
|
res.is_link = true
|
|
|
|
}
|
|
|
|
}
|
|
|
|
} $else {
|
|
|
|
statbuf := C.stat{}
|
|
|
|
// ref: https://code.woboq.org/gcc/include/sys/stat.h.html
|
|
|
|
res_stat := unsafe { C.lstat(&char(path.str), &statbuf) }
|
|
|
|
if res_stat == 0 {
|
|
|
|
kind := (int(statbuf.st_mode) & s_ifmt)
|
|
|
|
if kind == s_ifdir {
|
|
|
|
res.is_dir = true
|
|
|
|
}
|
|
|
|
if kind == s_iflnk {
|
|
|
|
res.is_link = true
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return res
|
|
|
|
}
|
|
|
|
|
2021-08-26 07:13:10 +03:00
|
|
|
// chdir changes the current working directory to the new directory in `path`.
|
2021-08-28 09:35:39 +03:00
|
|
|
pub fn chdir(path string) ? {
|
|
|
|
ret := $if windows { C._wchdir(path.to_wide()) } $else { C.chdir(&char(path.str)) }
|
|
|
|
if ret == -1 {
|
|
|
|
return error_with_code(posix_get_error_msg(C.errno), C.errno)
|
2021-08-26 07:13:10 +03:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// getwd returns the absolute path of the current directory.
|
2021-10-29 15:49:30 +03:00
|
|
|
[manualfree]
|
2021-08-26 07:13:10 +03:00
|
|
|
pub fn getwd() string {
|
2021-11-22 11:32:10 +03:00
|
|
|
unsafe {
|
2022-08-17 17:06:38 +03:00
|
|
|
buf := [max_path_buffer_size]u8{}
|
2021-11-22 11:32:10 +03:00
|
|
|
$if windows {
|
2022-08-17 18:40:15 +03:00
|
|
|
if C._wgetcwd(&u16(&buf[0]), max_path_len) == 0 {
|
2021-08-26 07:13:10 +03:00
|
|
|
return ''
|
|
|
|
}
|
2022-08-17 18:40:15 +03:00
|
|
|
res := string_from_wide(&u16(&buf[0]))
|
2021-10-29 15:49:30 +03:00
|
|
|
return res
|
2021-11-22 11:32:10 +03:00
|
|
|
} $else {
|
2022-08-17 18:40:15 +03:00
|
|
|
if C.getcwd(&char(&buf[0]), max_path_len) == 0 {
|
2021-08-26 07:13:10 +03:00
|
|
|
return ''
|
|
|
|
}
|
2022-08-17 18:40:15 +03:00
|
|
|
res := tos_clone(&buf[0])
|
2021-10-29 15:49:30 +03:00
|
|
|
return res
|
2021-08-26 07:13:10 +03:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// real_path returns the full absolute path for fpath, with all relative ../../, symlinks and so on resolved.
|
|
|
|
// See http://pubs.opengroup.org/onlinepubs/9699919799/functions/realpath.html
|
|
|
|
// Also https://insanecoding.blogspot.com/2007/11/pathmax-simply-isnt.html
|
|
|
|
// and https://insanecoding.blogspot.com/2007/11/implementing-realpath-in-c.html
|
2022-03-06 20:01:22 +03:00
|
|
|
// Note: this particular rabbit hole is *deep* ...
|
2021-08-26 07:13:10 +03:00
|
|
|
[manualfree]
|
|
|
|
pub fn real_path(fpath string) string {
|
2022-08-17 17:06:38 +03:00
|
|
|
mut fullpath := [max_path_buffer_size]u8{}
|
2021-08-26 07:13:10 +03:00
|
|
|
mut res := ''
|
|
|
|
$if windows {
|
2022-08-17 18:40:15 +03:00
|
|
|
pu16_fullpath := unsafe { &u16(&fullpath[0]) }
|
2021-08-26 07:13:10 +03:00
|
|
|
// gets handle with GENERIC_READ, FILE_SHARE_READ, 0, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0
|
|
|
|
// use C.CreateFile(fpath.to_wide(), 0x80000000, 1, 0, 3, 0x80, 0) instead of get_file_handle
|
|
|
|
// try to open the file to get symbolic link path
|
2021-11-22 11:32:10 +03:00
|
|
|
fpath_wide := fpath.to_wide()
|
|
|
|
defer {
|
|
|
|
unsafe { free(voidptr(fpath_wide)) }
|
|
|
|
}
|
|
|
|
file := C.CreateFile(fpath_wide, 0x80000000, 1, 0, 3, 0x80, 0)
|
2021-08-26 07:13:10 +03:00
|
|
|
if file != voidptr(-1) {
|
2021-11-22 11:32:10 +03:00
|
|
|
defer {
|
|
|
|
C.CloseHandle(file)
|
|
|
|
}
|
2021-08-26 07:13:10 +03:00
|
|
|
// https://docs.microsoft.com/en-us/windows/win32/api/fileapi/nf-fileapi-getfinalpathnamebyhandlew
|
2022-08-17 17:06:38 +03:00
|
|
|
final_len := C.GetFinalPathNameByHandleW(file, pu16_fullpath, max_path_buffer_size,
|
|
|
|
0)
|
|
|
|
if final_len < max_path_buffer_size {
|
2021-11-22 11:32:10 +03:00
|
|
|
rt := unsafe { string_from_wide2(pu16_fullpath, final_len) }
|
|
|
|
srt := rt[4..]
|
2021-10-29 15:49:30 +03:00
|
|
|
unsafe { res.free() }
|
2021-11-22 11:32:10 +03:00
|
|
|
res = srt.clone()
|
2021-08-26 07:13:10 +03:00
|
|
|
} else {
|
|
|
|
eprintln('os.real_path() saw that the file path was too long')
|
2021-10-29 15:49:30 +03:00
|
|
|
unsafe { res.free() }
|
2021-08-26 07:13:10 +03:00
|
|
|
return fpath.clone()
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
// if it is not a file C.CreateFile doesn't gets a file handle, use GetFullPath instead
|
2021-11-22 11:32:10 +03:00
|
|
|
ret := C.GetFullPathName(fpath_wide, max_path_len, pu16_fullpath, 0)
|
2021-08-26 07:13:10 +03:00
|
|
|
if ret == 0 {
|
2021-11-22 11:32:10 +03:00
|
|
|
// TODO: check errors if path len is not enough
|
2021-10-29 15:49:30 +03:00
|
|
|
unsafe { res.free() }
|
2021-08-26 07:13:10 +03:00
|
|
|
return fpath.clone()
|
|
|
|
}
|
2021-10-29 15:49:30 +03:00
|
|
|
unsafe { res.free() }
|
2021-11-22 11:32:10 +03:00
|
|
|
res = unsafe { string_from_wide(pu16_fullpath) }
|
2021-08-26 07:13:10 +03:00
|
|
|
}
|
|
|
|
} $else {
|
2022-08-17 18:40:15 +03:00
|
|
|
ret := &char(C.realpath(&char(fpath.str), &char(&fullpath[0])))
|
2021-08-26 07:13:10 +03:00
|
|
|
if ret == 0 {
|
2021-10-29 15:49:30 +03:00
|
|
|
unsafe { res.free() }
|
2021-08-26 07:13:10 +03:00
|
|
|
return fpath.clone()
|
|
|
|
}
|
2022-03-06 20:01:22 +03:00
|
|
|
// Note: fullpath is much larger (usually ~4KB), than what C.realpath will
|
2021-10-29 15:49:30 +03:00
|
|
|
// actually fill in the vast majority of the cases => it pays to copy the
|
|
|
|
// resulting string from that buffer, to a shorter one, and then free the
|
|
|
|
// 4KB fullpath buffer.
|
|
|
|
unsafe { res.free() }
|
2022-08-17 18:40:15 +03:00
|
|
|
res = unsafe { tos_clone(&fullpath[0]) }
|
2021-08-26 07:13:10 +03:00
|
|
|
}
|
|
|
|
unsafe { normalize_drive_letter(res) }
|
|
|
|
return res
|
|
|
|
}
|
|
|
|
|
|
|
|
[direct_array_access; manualfree; unsafe]
|
|
|
|
fn normalize_drive_letter(path string) {
|
|
|
|
$if !windows {
|
|
|
|
return
|
|
|
|
}
|
|
|
|
// normalize_drive_letter is needed, because
|
|
|
|
// a path like c:\nv\.bin (note the small `c`) in %PATH,
|
|
|
|
// is NOT recognized by cmd.exe (and probably other programs too)...
|
|
|
|
// Capital drive letters do work fine.
|
|
|
|
if path.len > 2 && path[0] >= `a` && path[0] <= `z` && path[1] == `:`
|
|
|
|
&& path[2] == path_separator[0] {
|
|
|
|
unsafe {
|
|
|
|
x := &path.str[0]
|
|
|
|
(*x) = *x - 32
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// fork will fork the current system process and return the pid of the fork.
|
|
|
|
pub fn fork() int {
|
|
|
|
mut pid := -1
|
|
|
|
$if !windows {
|
|
|
|
pid = C.fork()
|
|
|
|
}
|
|
|
|
$if windows {
|
|
|
|
panic('os.fork not supported in windows') // TODO
|
|
|
|
}
|
|
|
|
return pid
|
|
|
|
}
|
|
|
|
|
|
|
|
// wait blocks the calling process until one of its child processes exits or a signal is received.
|
|
|
|
// After child process terminates, parent continues its execution after wait system call instruction.
|
|
|
|
pub fn wait() int {
|
|
|
|
mut pid := -1
|
|
|
|
$if !windows {
|
2022-09-20 00:17:13 +03:00
|
|
|
$if !emscripten ? {
|
|
|
|
pid = C.wait(0)
|
|
|
|
}
|
2021-08-26 07:13:10 +03:00
|
|
|
}
|
|
|
|
$if windows {
|
|
|
|
panic('os.wait not supported in windows') // TODO
|
|
|
|
}
|
|
|
|
return pid
|
|
|
|
}
|
|
|
|
|
|
|
|
// file_last_mod_unix returns the "last modified" time stamp of file in `path`.
|
2021-10-22 17:08:08 +03:00
|
|
|
pub fn file_last_mod_unix(path string) i64 {
|
2021-08-26 07:13:10 +03:00
|
|
|
attr := C.stat{}
|
|
|
|
// # struct stat attr;
|
|
|
|
unsafe { C.stat(&char(path.str), &attr) }
|
|
|
|
// # stat(path.str, &attr);
|
2021-10-22 17:08:08 +03:00
|
|
|
return i64(attr.st_mtime)
|
2021-08-26 07:13:10 +03:00
|
|
|
// # return attr.st_mtime ;
|
|
|
|
}
|
|
|
|
|
|
|
|
// flush will flush the stdout buffer.
|
|
|
|
pub fn flush() {
|
|
|
|
C.fflush(C.stdout)
|
|
|
|
}
|
|
|
|
|
|
|
|
// chmod change file access attributes of `path` to `mode`.
|
|
|
|
// Octals like `0o600` can be used.
|
2021-08-28 12:51:37 +03:00
|
|
|
pub fn chmod(path string, mode int) ? {
|
2021-08-26 07:13:10 +03:00
|
|
|
if C.chmod(&char(path.str), mode) != 0 {
|
2021-08-28 09:37:24 +03:00
|
|
|
return error_with_code('chmod failed: ' + posix_get_error_msg(C.errno), C.errno)
|
2021-08-26 07:13:10 +03:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// chown changes the owner and group attributes of `path` to `owner` and `group`.
|
|
|
|
pub fn chown(path string, owner int, group int) ? {
|
|
|
|
$if windows {
|
|
|
|
return error('os.chown() not implemented for Windows')
|
|
|
|
} $else {
|
|
|
|
if C.chown(&char(path.str), owner, group) != 0 {
|
|
|
|
return error_with_code(posix_get_error_msg(C.errno), C.errno)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// open_append opens `path` file for appending.
|
|
|
|
pub fn open_append(path string) ?File {
|
|
|
|
mut file := File{}
|
|
|
|
$if windows {
|
|
|
|
wpath := path.replace('/', '\\').to_wide()
|
|
|
|
mode := 'ab'
|
|
|
|
file = File{
|
|
|
|
cfile: C._wfopen(wpath, mode.to_wide())
|
|
|
|
}
|
|
|
|
} $else {
|
|
|
|
cpath := path.str
|
|
|
|
file = File{
|
|
|
|
cfile: C.fopen(&char(cpath), c'ab')
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if isnil(file.cfile) {
|
|
|
|
return error('failed to create(append) file "$path"')
|
|
|
|
}
|
|
|
|
file.is_opened = true
|
|
|
|
return file
|
|
|
|
}
|
|
|
|
|
|
|
|
// execvp - loads and executes a new child process, *in place* of the current process.
|
|
|
|
// The child process executable is located in `cmdpath`.
|
|
|
|
// The arguments, that will be passed to it are in `args`.
|
2022-03-06 20:01:22 +03:00
|
|
|
// Note: this function will NOT return when successfull, since
|
2021-08-26 07:13:10 +03:00
|
|
|
// the child process will take control over execution.
|
|
|
|
pub fn execvp(cmdpath string, cmdargs []string) ? {
|
2022-07-06 07:07:48 +03:00
|
|
|
mut cargs := []&char{}
|
|
|
|
cargs << &char(cmdpath.str)
|
|
|
|
for i in 0 .. cmdargs.len {
|
|
|
|
cargs << &char(cmdargs[i].str)
|
|
|
|
}
|
|
|
|
cargs << &char(0)
|
|
|
|
mut res := int(0)
|
|
|
|
$if windows {
|
|
|
|
res = C._execvp(&char(cmdpath.str), cargs.data)
|
|
|
|
} $else {
|
|
|
|
res = C.execvp(&char(cmdpath.str), cargs.data)
|
|
|
|
}
|
|
|
|
if res == -1 {
|
|
|
|
return error_with_code(posix_get_error_msg(C.errno), C.errno)
|
2021-08-26 07:13:10 +03:00
|
|
|
}
|
2022-07-06 07:07:48 +03:00
|
|
|
|
|
|
|
// just in case C._execvp returned ... that happens on windows ...
|
|
|
|
exit(res)
|
2021-08-26 07:13:10 +03:00
|
|
|
}
|
|
|
|
|
|
|
|
// execve - loads and executes a new child process, *in place* of the current process.
|
|
|
|
// The child process executable is located in `cmdpath`.
|
|
|
|
// The arguments, that will be passed to it are in `args`.
|
|
|
|
// You can pass environment variables to through `envs`.
|
2022-03-06 20:01:22 +03:00
|
|
|
// Note: this function will NOT return when successfull, since
|
2021-08-26 07:13:10 +03:00
|
|
|
// the child process will take control over execution.
|
|
|
|
pub fn execve(cmdpath string, cmdargs []string, envs []string) ? {
|
2022-07-06 07:07:48 +03:00
|
|
|
mut cargv := []&char{}
|
|
|
|
mut cenvs := []&char{}
|
|
|
|
cargv << &char(cmdpath.str)
|
|
|
|
for i in 0 .. cmdargs.len {
|
|
|
|
cargv << &char(cmdargs[i].str)
|
|
|
|
}
|
|
|
|
for i in 0 .. envs.len {
|
|
|
|
cenvs << &char(envs[i].str)
|
|
|
|
}
|
|
|
|
cargv << &char(0)
|
|
|
|
cenvs << &char(0)
|
|
|
|
mut res := int(0)
|
|
|
|
$if windows {
|
|
|
|
res = C._execve(&char(cmdpath.str), cargv.data, cenvs.data)
|
|
|
|
} $else {
|
|
|
|
res = C.execve(&char(cmdpath.str), cargv.data, cenvs.data)
|
|
|
|
}
|
|
|
|
// Note: normally execve does not return at all.
|
|
|
|
// If it returns, then something went wrong...
|
|
|
|
if res == -1 {
|
|
|
|
return error_with_code(posix_get_error_msg(C.errno), C.errno)
|
2021-08-26 07:13:10 +03:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// is_atty returns 1 if the `fd` file descriptor is open and refers to a terminal
|
|
|
|
pub fn is_atty(fd int) int {
|
|
|
|
$if windows {
|
|
|
|
mut mode := u32(0)
|
|
|
|
osfh := voidptr(C._get_osfhandle(fd))
|
|
|
|
C.GetConsoleMode(osfh, voidptr(&mode))
|
|
|
|
return int(mode)
|
|
|
|
} $else {
|
|
|
|
return C.isatty(fd)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2021-08-25 14:40:53 +03:00
|
|
|
// write_file_array writes the data in `buffer` to a file in `path`.
|
|
|
|
pub fn write_file_array(path string, buffer array) ? {
|
2022-05-13 06:56:21 +03:00
|
|
|
mut f := create(path)?
|
|
|
|
unsafe { f.write_full_buffer(buffer.data, usize(buffer.len * buffer.element_size))? }
|
2021-08-25 14:40:53 +03:00
|
|
|
f.close()
|
|
|
|
}
|
|
|
|
|
|
|
|
pub fn glob(patterns ...string) ?[]string {
|
|
|
|
mut matches := []string{}
|
|
|
|
for pattern in patterns {
|
2022-05-13 06:56:21 +03:00
|
|
|
native_glob_pattern(pattern, mut matches)?
|
2021-08-25 14:40:53 +03:00
|
|
|
}
|
|
|
|
matches.sort()
|
|
|
|
return matches
|
|
|
|
}
|
2021-09-06 19:04:14 +03:00
|
|
|
|
|
|
|
pub fn last_error() IError {
|
|
|
|
$if windows {
|
|
|
|
code := int(C.GetLastError())
|
|
|
|
msg := get_error_msg(code)
|
|
|
|
return error_with_code(msg, code)
|
|
|
|
} $else {
|
|
|
|
code := C.errno
|
|
|
|
msg := posix_get_error_msg(code)
|
|
|
|
return error_with_code(msg, code)
|
|
|
|
}
|
|
|
|
}
|