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server: add safeguards against printing bogus port number 

Clang static checker emits "Assigned value is garbage or undefined"
warning there as it can't prove that when the socket descriptor is
AF_INET/SOCK_STREAM and getsockname doesn't return an error, sin_port
is guaranteed to be filled in.

Pacify it by obvious means.

Change-Id: I43b5e5ceb41c07d523a81b34a25490c4c5f49a70
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/4350
Tested-by: jenkins
Reviewed-by: Tim Newsome <tim@sifive.com>
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
This commit is contained in:
Paul Fertser 2018-01-17 17:31:58 +03:00 committed by Tomas Vanek
parent ff623b83fc
commit f02327d859
1 changed files with 4 additions and 3 deletions
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7
src/server/server.c
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@ -300,10 +300,11 @@ int add_service(char *name,
}
struct sockaddr_in addr_in;
addr_in.sin_port = 0;
socklen_t addr_in_size = sizeof(addr_in);
getsockname(c->fd, (struct sockaddr *)&addr_in, &addr_in_size);
LOG_INFO("Listening on port %hu for %s connections",
ntohs(addr_in.sin_port), name);
if (getsockname(c->fd, (struct sockaddr *)&addr_in, &addr_in_size) == 0)
LOG_INFO("Listening on port %hu for %s connections",
ntohs(addr_in.sin_port), name);
} else if (c->type == CONNECTION_STDINOUT) {
c->fd = fileno(stdin);