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use sys
use "errno.use"
use "cstrconv.use"
pkg std =
const exit : (status : int -> void)
pkglocal const bgetcwd : (buf : byte[:] -> errno)
;;
const bgetcwd = {buf
var fd
fd = sys.open(".", sys.Ordonly)
if fd < 0
-> fd castto(errno)
;;
if sys.fd2path(fd, buf) == 0
/*
Because we don't return the size, the best we can do is
assume that if the buffer is completely full, we have
truncated it. Since we truncate at utf8 characters, we
can have at most 3 bytes truncated (4 bytes will fit
any utf8 char), and one byte for the nul terminator.
*/
if cstrlen(buf) + 5 == buf.len
-> Erange
else
-> cstrlen(buf) castto(errno)
;;
;;
-> Emisc
}
const digitchars = "0123456789"
const exit = {status
var buf : byte[32] /* big enough for exit status numbers */
var n, i
if status == 0
sys.exits("")
else
status &= 255
i = 100
n = 0
while i > 0
if status >= i
buf[n++] = digitchars[(status/i)%10]
;;
i /= 10
;;
sys.exits(buf[:n])
;;
}
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