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Code Issues Releases Activity

Use thread0 instead of user's thread for sobind.

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This fixes reconnect after, for example, tcp idle disconnection.
Previously this would fail if a normal user tried to bind to a privileged
port.

Submitted by:	cel@citi.umich.edu
MFC after:	1 week
This commit is contained in:
Jim Rees 2006-01-20 15:17:46 +00:00
parent 4b81d0eb0f
commit c99880b289
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=154581
1 changed files with 5 additions and 1 deletions
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6
sys/rpc/rpcclnt.c
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@ -423,7 +423,11 @@ rpcclnt_connect(rpc, td)
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = INADDR_ANY;
sin.sin_port = htons(0);
error = sobind(so, (struct sockaddr *) & sin, td);
/*
* &thread0 gives us root credentials to ensure sobind
* will give us a reserved ephemeral port.
*/
error = sobind(so, (struct sockaddr *) & sin, &thread0);
#endif
if (error)
goto bad;