# [PATCH] daemon: parse_host_and_port SIGSEGV if port is specified

2 messages from 2010-03-20 to 2010-03-20. Participants: imre.deak@nokia.com, Junio C Hamano.
Thread: https://gitlist.dev/t/23099

## imre.deak@nokia.com, 2010-03-20 02:23

Subject: [PATCH] daemon: parse_host_and_port SIGSEGV if port is specified
Message-ID: <1269051838-25734-1-git-send-email-imre.deak@nokia.com>
URL: https://gitlist.dev/e/1269051838-25734-1-git-send-email-imre.deak%40nokia.com

```
From: Imre Deak <imre.deak@gmail.com>

This typo will lead to git-daemon dying any time the connect
string includes a port after the host= attribute. This can lead
for example to one of the following error messages on the client
side when someone tries git clone git://...:<port>.

When the daemon is running on localhost:
  fatal: The remote end hung up unexpectedly

or when the daemon is connected through an ssh tunnel:
  fatal: protocol error: bad line length character: erro

In the latter case 'erro' comes from the daemon's reply:
  error: git-daemon died of signal 11

Signed-off-by: Imre Deak <imre.deak@gmail.com>
---
 daemon.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/daemon.c b/daemon.c
index 3769b6f..7d9e1c0 100644
--- a/daemon.c
+++ b/daemon.c
@@ -420,7 +420,7 @@ static void parse_host_and_port(char *hostport, char **host,
 		*host = hostport;
 		*port = strrchr(hostport, ':');
 		if (*port) {
-			*port = '\0';
+			**port = '\0';
 			++*port;
 		}
 	}
-- 
1.7.0.2

```

## Junio C Hamano, 2010-03-20 15:49

Subject: Re: [PATCH] daemon: parse_host_and_port SIGSEGV if port is specified
Message-ID: <7vk4t7kn7g.fsf@alter.siamese.dyndns.org>
URL: https://gitlist.dev/e/7vk4t7kn7g.fsf%40alter.siamese.dyndns.org
In-Reply-To: <1269051838-25734-1-git-send-email-imre.deak@nokia.com>

```
imre.deak@nokia.com writes:

> From: Imre Deak <imre.deak@gmail.com>
>
> This typo will lead to git-daemon dying any time the connect
> string includes a port after the host= attribute. This can lead
> for example to one of the following error messages on the client
> side when someone tries git clone git://...:<port>.
>
> When the daemon is running on localhost:
>   fatal: The remote end hung up unexpectedly
>
> or when the daemon is connected through an ssh tunnel:
>   fatal: protocol error: bad line length character: erro
>
> In the latter case 'erro' comes from the daemon's reply:
>   error: git-daemon died of signal 11
>
> Signed-off-by: Imre Deak <imre.deak@gmail.com>
> ---

I wonder why I have this feeling that I've seen this patch before...

Thanks.

>  daemon.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/daemon.c b/daemon.c
> index 3769b6f..7d9e1c0 100644
> --- a/daemon.c
> +++ b/daemon.c
> @@ -420,7 +420,7 @@ static void parse_host_and_port(char *hostport, char **host,
>  		*host = hostport;
>  		*port = strrchr(hostport, ':');
>  		if (*port) {
> -			*port = '\0';
> +			**port = '\0';
>  			++*port;
>  		}
>  	}
> -- 
> 1.7.0.2

```
