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including <string.h> should be enougth to make strdup()
available.
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in ape's vfprintf we don't check if the file we're writing is actually a string buffer, resulting in a return of -1, when we should actually return the number of bytes that would be written.
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when executing generated binaries and helper scripts,
always execute them as ./name instead of relying that
path contsins the dot.
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semaphore locks have much higher overhead than initially presented
in the "Semaphores in Plan9" paper. until the reason for it has been
found out i will revert the changes.
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segattach()/segbrk() (erik), use uniqueue rendezvous tags for _buf and listen
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instead of trying to resize the segment (which will not work when
the kernel picks the address as it will allocate right before
the base of the topmost segment), we create the mux segment with the
maximum size needed (arround 1.4MB) for OPEN_MAX filedescriptors.
buf slots will be reused and slots get demand paged once used.
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*alen has to be initialized to the size of the buffer
by the caller, and we are supposed to put the real
size of the address in there, but not copy more than
the original *alen value (truncate).
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store errno on the private process stack so its always per process
and not just per memory space. errno itself becomes a macro
dereferencing int *_errnoloc; which is initialized from main9.s
pointing to the private stack location.
various fixes in programs that just imported errno variable with
"extern int errno;" instead of including <errno.h>.
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in ape close(), do the real filedescriptor _CLOSE() *after* we cleared
the _fdinfo[] slot because once closed, we dont own the slot anymore and
another process doing open() can trash the slot. make sure open() retuns
fd < OPEN_MAX.
double check in _startbuf() holding mux->lock if the fd is already buffered
preveting running double copyprocs on a fd.
dont zero the mux->rwant/ewant bitmaps at the end of select() as we do not
hold the mix->lock.
in _closebuf() kill copyproc while holding the mux->lock to make sure the
copyproc isnt holding it at the time it is killed. run kill() multiple times
to make sure the proc is gone.
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python uses processes sharing memory. it requires at least fopen() to
be called by multiple threads at once so we introduce _IO_newfile()
which allocates the FILE structure slot under a lock.
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add PASS_MAX to limits.h for ape, and make getpass respect it. also increase the size of
the maximum passwords (we use long ones at work). Needed for native port of SVN (in progress).
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APE's getsockname() returns port with bytes swapped (on 386).
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db1 was leaked, and newname could overflow. fixed.
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_grpmems() was broken tokenizing group list in place.
we have to copy it to status buffer before tokenizing.
dynamically alloc path for test file to check write
permission on directory and add pid to the name to
prevent races.
use _OPEN instead of ape open to read /dev/ppid in
getppid().
use mode enums instead of numeric constants for _OPEN()
and _CREATE().
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writing /env in putenv() doesnt work. exec will create
new enviroment anyway. we have to modify environ array!
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remove envname length limitation in _envsetup()
by using allocated buffer and use /env instead of #e
use /proc and getpid() instead of #p and #c in
readprocfdinit()
fix buffer overflow in execlp(), check if name
of failed exec starts with / . or is \0
make sure not to close our own filedescriptors
for FD_CLOEXEC in execve(), fix wrong length
check for flushing buffer to /env/_fdinfo.
fix error handling cases. copy the enviroment
before decoding \1 to \0 because the strings in
environ[] array might not be writable.
remove bogus close if we fail to open ppid file
in getppid() and use /dev/ppid instead of #c/ppid
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to start and remove inst/gui, add sys/lib/rootbind, cisfd(8) manpage
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