Add xstrdup_tolower(), a helper to get a lower case copy of a
string, and use it in two cases.
Signed-off-by: NRene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Replace a loop around an enter_repo() call, which was used to retry
a single time with a different parameter in case the first call fails,
with two calls and an if.  This is shorter and cleaner.
Signed-off-by: NRene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Die if stderr couldn't be sent to /dev/null when operating in inetd
mode and report the error message from the OS.

This fixes a compiler warning about the return value of freopen()
being ignored on Ubuntu 8.10.
Signed-off-by: NRene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Remove the global variable 'directory' and pass it as a parameter of
the two functions that use it instead, (almost) restoring their
interface to how it was before 49ba83fb.
Signed-off-by: NRene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Having fill_in_extra_table_entries() as a separate function has no
advantage -- a function with no parameters and return values might as
well be an anonymous block of code.  Its name still refers to the table
of interpolate() which has been removed earlier, so it's better to
inline it at its only call site.
Signed-off-by: NRene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Signed-off-by: NRene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

This allows hooks like pre-receive to look at the client's IP
address.

Of course the IP address can't be used to get strong security;
git-daemon isn't the right thing to use if you need that. However,
basic IP address checking can be good enough in some situations.

REMOTE_ADDR is the same environment variable used to communicate the
client's address to CGI scripts.
Signed-off-by: NJoey Hess <joey@kitenet.net>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

A simple "grep -e stat --and -e S_ISDIR" revealed there are many
open-coded implementations of this function.
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

This function is outside POSIX (Linux and recent BSD have it).  Replace it
with setvbuf() which is POSIX.

I am not sure about the value this patch passes as size argument to
setvbuf(), though.  I know the call this patch makes is equivalent to
calling setlinebuf() with GNU libc, but POSIX itself leaves what happens
to the size argument quite vague, saying only "otherwise [i.e. when buf is
a null pointer], size _may_ determine the size of a buffer allocated by
the setvbuf() function."  If passing size=0 causes stdio to allocate very
small buffer, and while stdio tries to line buffer the output, it might
make it to fail to buffer an entire line, causing early flushing of the
stream.

Even if that turns out to be a problem on minorority platforms, we won't
know it until the issue actually hurts them, so let's push this change out
and see what happens.
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Some systems (like e.g. OpenSolaris) define pid_t as long,
therefore all our sprintf that use %i/%d cause a compiler warning
beacuse of the implicit long->int cast. To make sure that
we fit the limits, we display pids as PRIuMAX and cast them explicitly
to uintmax_t.
Signed-off-by: NDavid Soria Parra <dsp@php.net>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

* "else" on the same line as "}" that closes corresponding "if (...) {";

 * multi-line comments begin with "/*\n";

 * sizeof, even it is not a function, is written as "sizeof(...)";

 * no need to check x?alloc() return value -- it would have died;

 * "if (...) { ... }" that covers the whole function body can be dedented
   by returning from the function early with "if (!...) return;";

 * SP on each side of an operator, i.e. "a > 0", not "a>0";

Also removes stale comment describing how remove_child() used to do its
thing.

Signed-off-by: Junio C Hamano <gitster@pobox.com>:
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Get rid of the fixed array of children and make max-connections
dynamic and configurable.
Fix the killing code to actually kill the newest connections from
duplicate IP-addresses.
Avoid forking if too busy already.
Signed-off-by: NStephen R. van den Berg <srb@cuci.nl>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Move almost all code out of the child_handler() into check_dead_children().
The fact that systemcalls get interrupted by signals allows us to
make the SIGCHLD signal handler almost a no-op by simply running
check_dead_children() right before waiting on poll().

In case some systems do not interrupt systemcalls upon signal receipt,
all zombies will eventually be collected before the next poll() cycle.
Signed-off-by: NStephen R. van den Berg <srb@cuci.nl>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Make git-daemon use LOG_PID like most daemons, instead of prepending the
pid to the message ourselves, when using syslog(3).

Simplify the logging code by setting stderr to line buffered, instead of
building a single string and writing it out with a single write(2).

Give an extra log message at the daemon start-up.
Signed-off-by: NStephen R. van den Berg <srb@cuci.nl>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Use logerror(), not error(), so that the messages won't be lost,
especially when running the daemon with its log sent to the syslog
facility.
Signed-off-by: NStephen R. van den Berg <srb@cuci.nl>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Fixes the bug on (amongst others) Solaris that only the first
child ever is reaped.
Signed-off-by: NStephen R. van den Berg <srb@cuci.nl>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

To avoid waking up unnecessarily, a pipe is set up that is only ever
written to by child_handler(), when a child disconnects, as suggested
per Junio.

This avoids waking up the main process every second to see if a child
was disconnected.
Signed-off-by: NJohannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

When you misuse a git command, you are shown the usage string.
But this is currently shown in the dashed form.  So if you just
copy what you see, it will not work, when the dashed form
is no longer supported.

This patch makes git commands show the dash-less version.

For shell scripts that do not specify OPTIONS_SPEC, git-sh-setup.sh
generates a dash-less usage string now.
Signed-off-by: NStephan Beyer <s-beyer@gmx.net>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Signal handlers should never call syslog(), as that can raise signals
of its own.

Instead, call the syslog() from the master process.
Signed-off-by: NJohannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

git_config() only had a function parameter, but no callback data
parameter.  This assumes that all callback functions only modify
global variables.

With this patch, every callback gets a void * parameter, and it is hoped
that this will help the libification effort.
Signed-off-by: NJohannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Any request to the daemon would fail if base-path (if specified) is not
a directory. We now check for this condition early.
Signed-off-by: NJohannes Sixt <johannes.sixt@telecom.at>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

There were a number of die() calls before the syslog was opened; hence,
these error messages would have been sent to /dev/null in detached mode.
Now we install the daemon-specific die routine before any error message is
generated so that these messages go to the syslog.
Signed-off-by: NJohannes Sixt <johannes.sixt@telecom.at>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Signed-off-by: NJunio C Hamano <gitster@pobox.com>

The port number in struct sockaddr_in needs to be converted from network
byte order to host byte order (on some architectures).
Signed-off-by: NGerrit Pape <pape@smarden.org>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

I found I needed NI_MAXSERV as it is defined in netdb.h, which is
not included by daemon.c.  Rather than including the whole header
we can define a reasonable fallback value.
Signed-off-by: NShawn O. Pearce <spearce@spearce.org>

I switched git.kernel.dk to --base-path a few minutes ago, to get rid of
a /data/git postfix in the posted urls. But transitioning is tricky,
since now all old paths will fail miserably.

So I added this --base-path-relaxed option, that will make git-daemon
try the absolute path without prefixing --base-path before giving up.
With this in place and --base-path-relaxed added, both my new url of

    git://git.kernel.dk/linux-2.6-block.git

and the old

    git://git.kernel.dk/data/git/linux-2.6-block.git

work fine.
Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Signed-off-by: NPierre Habouzit <madcoder@debian.org>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

This uses "git-apply --whitespace=strip" to fix whitespace errors that have
crept in to our source files over time.  There are a few files that need
to have trailing whitespaces (most notably, test vectors).  The results
still passes the test, and build result in Documentation/ area is unchanged.
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Note: since the consequence of failure is to call die,
I don't bother to close "f".
Signed-off-by: NJim Meyering <jim@meyering.net>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Previous step converted use of strncmp() with literal string
mechanically even when the result is only used as a boolean:

    if (!strncmp("foo", arg, 3)) ==> if (!(-prefixcmp(arg, "foo")))

This step manually cleans them up to read:

    if (!prefixcmp(arg, "foo"))
Signed-off-by: NJunio C Hamano <junkio@cox.net>

This mechanically converts strncmp() to use prefixcmp(), but only when
the parameters match specific patterns, so that they can be verified
easily.  Leftover from this will be fixed in a separate step, including
idiotic conversions like

    if (!strncmp("foo", arg, 3))

  =>

    if (!(-prefixcmp(arg, "foo")))

This was done by using this script in px.perl

   #!/usr/bin/perl -i.bak -p
   if (/strncmp\(([^,]+), "([^\\"]*)", (\d+)\)/ && (length($2) == $3)) {
           s|strncmp\(([^,]+), "([^\\"]*)", (\d+)\)|prefixcmp($1, "$2")|;
   }
   if (/strncmp\("([^\\"]*)", ([^,]+), (\d+)\)/ && (length($1) == $3)) {
           s|strncmp\("([^\\"]*)", ([^,]+), (\d+)\)|(-prefixcmp($2, "$1"))|;
   }

and running:

   $ git grep -l strncmp -- '*.c' | xargs perl px.perl
Signed-off-by: NJunio C Hamano <junkio@cox.net>

This makes it possible to restart git-daemon even if some children are
still running.
Signed-off-by: NAlexandre Julliard <julliard@winehq.org>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Signed-off-by: NJunio C Hamano <junkio@cox.net>

This allows pushing over the git:// protocol, and while it's not
authenticated, it could make sense from within a firewalled
setup where nobody but trusted internal people can reach the git
port.  git-daemon is possibly easier and faster to set up in the
kind of situation where you set up git instead of CVS inside a
company.

"git-receive-pack" is disabled by default, so you need to enable it
explicitly by starting git-daemon with the "--enable=receive-pack"
command line argument, or by having your config enable it automatically.
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

We have a number of badly checked write() calls.  Often we are
expecting write() to write exactly the size we requested or fail,
this fails to handle interrupts or short writes.  Switch to using
the new write_in_full().  Otherwise we at a minimum need to check
for EINTR and EAGAIN, where this is appropriate use xwrite().

Note, the changes to config handling are much larger and handled
in the next patch in the sequence.
Signed-off-by: NAndy Whitcroft <apw@shadowen.org>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

This is a mechanical clean-up of the way *.c files include
system header files.

 (1) sources under compat/, platform sha-1 implementations, and
     xdelta code are exempt from the following rules;

 (2) the first #include must be "git-compat-util.h" or one of
     our own header file that includes it first (e.g. config.h,
     builtin.h, pkt-line.h);

 (3) system headers that are included in "git-compat-util.h"
     need not be included in individual C source files.

 (4) "git-compat-util.h" does not have to include subsystem
     specific header files (e.g. expat.h).
Signed-off-by: NJunio C Hamano <junkio@cox.net>

In the older times, the clients did not say which host they were trying
to connect, and the code we recently added did not quite handle the
older clients correctly.

Noticed by Simon Arlott.
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Signed-off-by: NAlex Riesen <raa.lkml@gmail.com>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Signed-off-by: NJohannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Clarified that parse_extra_args()s results in interpolation
table entries.  Removed a few trailing whitespace occurrences.
Signed-off-by: NJon Loeliger <jdl@jdl.com>
Signed-off-by: NJunio C Hamano <junkio@cox.net>