abc1e22d65
Properly check length modfiers for %n in format strings.
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llvm-svn: 161408
2012-08-07 09:13:19 +00:00
b1ab2a84f0
Remove ScanfArgType and bake that logic into ArgType.
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This is useful for example for %n in printf, which expects
a pointer to int with the same logic for checking as %d
would have in scanf.
llvm-svn: 161407
2012-08-07 08:59:46 +00:00
16250c7c18
-Wformat: better handling of qualifiers on pointer arguments
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Warn about using pointers to const-qualified types as arguments to
scanf. Ignore the volatile qualifier when checking if types match.
llvm-svn: 161052
2012-07-31 16:37:47 +00:00
ebcd1c7ca2
Make -Wformat check the argument type for %n.
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This makes Clang check that the corresponding argument for "%n" in a
format string is a pointer to int.
llvm-svn: 160966
2012-07-30 17:11:32 +00:00
9bc9bcc247
Format string analysis: give 'q' its own enumerator.
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This is in preparation for being able to warn about 'q' and other
non-standard format string features.
It also allows us to print its name correctly.
llvm-svn: 150697
2012-02-16 16:34:54 +00:00
cb197b0e42
FormatCheckers should emit all diagnostics using EmitFormatDiagnostic().
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llvm-svn: 149394
2012-01-31 18:12:08 +00:00
6fa5727939
Teach scanf/printf checking about '%Ld' and friends (a GNU extension). Fixes PR 9466.
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llvm-svn: 148859
2012-01-24 21:29:54 +00:00
9139892728
The 'l' length modifier makes sense with the scanlist conversion specifier.
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llvm-svn: 148586
2012-01-20 22:11:52 +00:00
e7b9d4342b
Tighten format string diagnostic and make it a bit clearer (and a bit closer to GCC's).
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llvm-svn: 148579
2012-01-20 21:52:58 +00:00
507b567707
Treat -Wformat=0 as an alias for -Wformat.
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Fixes PR9195.
llvm-svn: 148300
2012-01-17 09:30:38 +00:00
6073e31baa
scanf: parse the 'm' length modifier, and check that the right arguments
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are used with that and the 'a' length modifier.
llvm-svn: 148029
2012-01-12 17:11:12 +00:00
fd950878fa
scanf analysis: the 'a' length modifier is valid with a scanlist
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Before r148025 we (accidentally) didn't check whether a length modifier is
appropriate for a scanlist, but now we do.
llvm-svn: 148026
2012-01-12 15:07:16 +00:00
32f115f9c1
scanf analysis: don't bail out after successful parse of scanlist
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llvm-svn: 148025
2012-01-12 14:44:54 +00:00
29b653413a
Fix test/Sema/format-strings-scanf.c
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llvm-svn: 146651
2011-12-15 11:43:45 +00:00
23926bd2d7
Support the 'a' length modifier in scanf format strings as a C90
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extension.
This fixes gcc.dg/format/c90-scanf-3.c and ext-4.c (test for excess
errors).
llvm-svn: 146649
2011-12-15 10:25:47 +00:00
4951c67875
Fix signature of vsscanf in Builtins.def
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llvm-svn: 146392
2011-12-12 18:46:05 +00:00
8d5a4093f5
Fix signature of sscanf in Builtins.def
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llvm-svn: 146390
2011-12-12 18:33:02 +00:00
bb4189db23
Make fscanf, vscanf, etc. be recognized as scanf-like functions.
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llvm-svn: 146367
2011-12-12 10:34:18 +00:00
b1a5e09f6f
Check that arguments to a scanf call match the format specifier,
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and offer fixits when there is a mismatch.
llvm-svn: 146326
2011-12-10 13:20:11 +00:00
03cf7b70e0
Fix for PR9751 to change the behavior of -Wformat warnings. If the format
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string is part of the function call, then there is no difference. If the
format string is not, the warning will point to the call site and a note
will point to where the format string is.
Fix-it hints for strings are moved to the note if a note is emitted. This will
prevent changes to format strings that may be used in multiple places.
llvm-svn: 143168
2011-10-28 00:41:25 +00:00
4407ea4948
Hookup checking for invalid length modifiers in scanf format strings.
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llvm-svn: 108907
2010-07-20 20:04:47 +00:00
6cd694233d
Don't warn when a '%%' or '%*d' (scanf) is used in a format string with positional arguments, since
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these don't actually consume an argument.
llvm-svn: 108757
2010-07-19 22:01:06 +00:00
ce81542d61
Hook up 'invalid conversion' warning for scanf format strings.
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llvm-svn: 108750
2010-07-19 21:25:57 +00:00
5c3e1b9a54
Add missing conversion specifier parsing for 'u', 'x', 'o', and 's'. Fixes <rdar://problem/8204052>.
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llvm-svn: 108742
2010-07-19 19:47:40 +00:00
0030be81f5
Remove unicode quotes characters that somehow made it into a recent commit of mine.
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llvm-svn: 108552
2010-07-16 20:49:01 +00:00
d7b31cc60d
Hook up warning for an incomplete scanlist in scanf format strings.
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llvm-svn: 108542
2010-07-16 18:28:03 +00:00
c618728e8d
Tweak zero-field width in scanf format string diagnostic.
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llvm-svn: 108541
2010-07-16 18:27:56 +00:00
5530131bb7
Add initial test cases for scanf format string checking.
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llvm-svn: 108503
2010-07-16 02:11:34 +00:00
Hans Wennborg