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Giant const-correctness patch of doom!

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Having found a lot of unfixed constness issues in recent development,
I thought perhaps it was time to get proactive, so I compiled the
whole codebase with -Wwrite-strings. That turned up a huge load of
const problems, which I've fixed in this commit: the Unix build now
goes cleanly through with -Wwrite-strings, and the Windows build is as
close as I could get it (there are some lingering issues due to
occasional Windows API functions like AcquireCredentialsHandle not
having the right constness).

Notable fallout beyond the purely mechanical changing of types:
 - the stuff saved by cmdline_save_param() is now explicitly
   dupstr()ed, and freed in cmdline_run_saved.
 - I couldn't make both string arguments to cmdline_process_param()
   const, because it intentionally writes to one of them in the case
   where it's the argument to -pw (in the vain hope of being at least
   slightly friendly to 'ps'), so elsewhere I had to temporarily
   dupstr() something for the sake of passing it to that function
 - I had to invent a silly parallel version of const_cmp() so I could
   pass const string literals in to lookup functions.
 - stripslashes() in pscp.c and psftp.c has the annoying strchr nature
This commit is contained in:
Simon Tatham
2015-05-15 11:15:42 +01:00
parent fb4fbe1158
commit 89da2ddf56
65 changed files with 559 additions and 450 deletions
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3
unix/uxnet.c
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@ -776,7 +776,8 @@ Socket sk_new(SockAddr addr, int port, int privport, int oobinline,
return (Socket) ret;
}
Socket sk_newlistener(char *srcaddr, int port, Plug plug, int local_host_only, int orig_address_family)
Socket sk_newlistener(const char *srcaddr, int port, Plug plug,
int local_host_only, int orig_address_family)
{
int s;
#ifndef NO_IPV6