Bug 738428 - gnome-user-share fails to launch httpd
gnome-user-share fails to launch httpd
Product: Fedora
Classification: Fedora
Component: gnome-user-share (Show other bugs)
Unspecified Unspecified
unspecified Severity unspecified
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Assigned To: Bastien Nocera
Fedora Extras Quality Assurance
Depends On:
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Reported: 2011-09-14 14:35 EDT by Pierre Ossman
Modified: 2012-08-16 08:39 EDT (History)
3 users (show)

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Doc Type: Bug Fix
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Last Closed: 2012-08-16 08:39:42 EDT
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Description Pierre Ossman 2011-09-14 14:35:24 EDT
gnome-user-share doesn't work here at all, and after doing some strace I'm sort-of seeing why. It tries to launch it like so:

[pid 21788] execve("/usr/sbin/httpd", ["/usr/sbin/httpd", "-f", "/usr/share/gnome-user-share/dav_"..., "-C", "Listen -1"], [/* 7 vars */] <unfinished ...>

which results in:

[pid 21788] write(2, "Syntax error on line 1 of -c/-C "..., 44) = 44
[pid 21788] write(2, "Port must be specified\n", 23) = 23

Which makes sense, as -1 is not a legal value (as far as the docs go at least).

No clue as to why it does this.
Comment 1 Pierre Ossman 2011-09-14 14:43:34 EDT
Ok, looked at the code. The -1 is an error code indicating that it failed to find a random port (error checking, guys? ;)).

As to why that fails, strace shows:

setsockopt(17, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
bind(17, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) = -1 EINVAL (Invalid argument)

I'm guessing teh lack of proper address family is what it gets upset about. The man page even says that this is expected:

"sin_family  is  always set to AF_INET.  This is required; in Linux 2.2 most networking functions return EINVAL when this setting is missing. "

How did this ever work?
Comment 2 Ben Liblit 2011-09-25 13:00:32 EDT
See also <https://bugs.launchpad.net/ubuntu/+source/gnome-user-share/+bug/856732>.  That is this same bug as represented in Ubuntu's bug tracker, and it includes a suggested patch.  (I'd add this link to the "External Trackers" section of this report, but it seems I do not have permission to do so.)
Comment 3 Fedora End Of Life 2012-08-16 08:39:44 EDT
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