lib: avoid fallthrough cases in switch statements #7322
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bagder
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Jul 1, 2021
lib/http_ntlm.c
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| @@ -198,6 +198,12 @@ CURLcode Curl_output_ntlm(struct Curl_easy *data, bool proxy) | |||
| #endif | |||
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| Curl_bufref_init(&ntlmmsg); | |||
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| /* connection is already authenticated, don't send a header in future | |||
| * requests so do directly to NTLMSTATE_LAST */ | |||
bagder
approved these changes
Jul 1, 2021
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On 1 Jul 2021, at 10:38, Daniel Stenberg ***@***.***> wrote:
Curl_bufref_init(&ntlmmsg);
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+ /* connection is already authenticated, don't send a header in future
+ * requests so do directly to NTLMSTATE_LAST */
go directly?
Doh, yes of course, will fix.
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Commit b5a434f inhibits the warning on implicit fallthrough cases, since the current coding of indicating fallthrough with comments is falling out of fashion with new compilers. This attempts to make the issue smaller by rewriting fallthroughs to no longer fallthrough, via either breaking the cases or turning switch statements into if statements. lib/content_encoding.c: the fallthrough codepath is simply copied into the case as it's a single line. lib/http_ntlm.c: the fallthrough case skips a state in the state- machine and fast-forwards to NTLMSTATE_LAST. Do this before the switch statement instead to set up the states that we actually want. lib/http_proxy.c: the fallthrough is just falling into exiting the switch statement which can be done easily enough in the case. lib/mime.c: switch statement rewritten as if statement. lib/pop3.c: the fallthrough case skips to the next state in the statemachine, do this explicitly instead. lib/urlapi.c: switch statement rewritten as if statement. lib/vssh/wolfssh.c: the fallthrough cases fast-forwards the state machine, do this by running another iteration of the switch statement instead. lib/vtls/gtls.c: switch statement rewritten as if statement. lib/vtls/nss.c: the fallthrough codepath is simply copied into the case as it's a single line. Also twiddle a comment to not be inside a non-brace if statement. Closes: #xxxx See-also: curl#7295
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@danielgustafsson how do you feel about this now. Ready to merge? |
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@danielgustafsson how do you feel about this now. Ready to merge?
Yes, I intend to get this in during the feature window for 7.80
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The CI failures seem unrelated to this PR. |
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The CI failures seem unrelated to this PR.
Thanks for clarifying, I've pushed this to master now.
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This patch needs a lot of exercise on the CI courts, it should be a noop functionality wise.
Commit b5a434f inhibits the warning
on implicit fallthrough cases, since the current coding of indicating
fallthrough with comments is falling out of fashion with new compilers.
This attempts to make the issue smaller by rewriting fallthroughs to no
longer fallthrough, via either breaking the cases or turning switch
statements into if statements.
lib/content_encoding.c: the fallthrough codepath is simply copied
into the case as it's a single line.
lib/http_ntlm.c: the fallthrough case skips a state in the state-
machine and fast-forwards to NTLMSTATE_LAST. Do this before the
switch statement instead to set up the states that we actually
want.
lib/http_proxy.c: the fallthrough is just falling into exiting the
switch statement which can be done easily enough in the case.
lib/mime.c: switch statement rewritten as if statement.
lib/pop3.c: the fallthrough case skips to the next state in the
statemachine, do this explicitly instead.
lib/urlapi.c: switch statement rewritten as if statement.
lib/vssh/wolfssh.c: the fallthrough cases fast-forwards the state
machine, do this by running another iteration of the switch
statement instead.
lib/vtls/gtls.c: switch statement rewritten as if statement.
lib/vtls/nss.c: the fallthrough codepath is simply copied into the
case as it's a single line. Also twiddle a comment to not be
inside a non-brace if statement.
Closes: #xxxx
See-also: #7295