OS X has no public API for fdatasync. And as pointed out in `man fsync(2)`:
For applications that require tighter guarantees about the integrity of
their data, Mac OS X provides the F_FULLFSYNC fcntl. The F_FULLFSYNC
fcntl asks the drive to flush all buffered data to permanent storage.
Applications, such as databases, that require a strict ordering of writes
should use F_FULLFSYNC to ensure that their data is written in the order
they expect. Please see fcntl(2) for more detail.
The Sun Studio compiler did not define any of the symbols used to determine if
the system was a unix-like system or not causing it to include the windows
header.
uv_spawn() saves and restores the environ in case the child clobbers it -
which is impossible because the child process runs in a separate address space.
Problem: registering two uv_fs_event_t watchers for the same path, then closing
them, caused a segmentation fault. While active, the watchers didn't work right
either, only one would receive events.
Cause: each watcher has a wd (watch descriptor) that's used as its key in a
binary tree. When you call inotify_watch_add() twice with the same path, the
second call doesn't return a new wd - it returns the existing one. That in turn
resulted in the first handle getting ousted from the binary tree, leaving
dangling pointers.
This commit addresses that by storing the watchers in a queue and storing the
queue in the binary tree instead of storing the watchers directly in the tree.
Fixesjoyent/node#3789.
uv_set_process_title() was susceptible to a format string vulnerability:
$ node -e 'process.title = Array(42).join("%s")'
Segmentation fault: 11 (core dumped)
The fix is trivial - call setproctitle("%s", s) instead of setproctitle(s) -
but valgrind complains loudly about reads from and writes to uninitialized
memory in libc. It's not a libuv bug because the test case below triggers the
same warnings:
#include <sys/types.h>
#include <unistd.h>
int main(void)
{
setproctitle("%s", "test");
return 0;
}
That's why this commit replaces setproctitle() with sysctl(KERN_PROC_ARGS).
This commit reapplies commit a9f6f06, which got reverted in 69a6afe. The revert
turned out to be unnecessary.
It's making node.js crash when run as root. Backtrace:
(gdb) bt
#0 0x00007fff856e3ff9 in __findenv ()
#1 0x00007fff856e404c in getenv ()
#2 0x000000010004c850 in loop_init (loop=0x10045a792, flags=8) at ev.c:1707
#3 0x000000010004cb3b in ev_backend [inlined] () at /Users/tjfontaine/Development/node/deps/uv/src/unix/ev/ev.c:2090
#4 0x000000010004cb3b in ev_default_loop (flags=1606417108) at ev.c:2092
#5 0x000000010004e5c6 in uv__loop_init (loop=0x10066e330, default_loop=1) at loop.c:52
#6 0x0000000100044367 in uv_default_loop () at core.c:196
#7 0x0000000100004625 in node::Init (argc=1606417456, argv=0x100b0f490) at node.cc:2761
#8 0x000000010000797d in node::Start (argc=1606417600, argv=0x0) at node.cc:2888
#9 0x0000000100000ca4 in start ()
This reverts commits:
b49d6f7 unix: fix uv_set_process_title()
a9f6f06 unix: fix format string vulnerability in freebsd.c
a87abc7 unix: avoid buffer overflow in proctitle.c
dc97d44 unix: move uv_set_process_title() to proctitle.c
