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[Support/YAMLParser] Fix ASan found bugs.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155735 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Michael J. Spencer 2012-04-27 21:12:20 +00:00
parent b4a8aef96d
commit 57d61de858
1 changed files with 7 additions and 1 deletions
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8
lib/Support/YAMLParser.cpp
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@ -755,6 +755,8 @@ Token Scanner::getNext() {
}
StringRef::iterator Scanner::skip_nb_char(StringRef::iterator Position) {
if (Position == End)
return Position;
// Check 7 bit c-printable - b-char.
if ( *Position == 0x09
|| (*Position >= 0x20 && *Position <= 0x7E))
@ -778,6 +780,8 @@ StringRef::iterator Scanner::skip_nb_char(StringRef::iterator Position) {
}
StringRef::iterator Scanner::skip_b_break(StringRef::iterator Position) {
if (Position == End)
return Position;
if (*Position == 0x0D) {
if (Position + 1 != End && *(Position + 1) == 0x0A)
return Position + 2;
@ -1211,7 +1215,9 @@ bool Scanner::scanFlowScalar(bool IsDoubleQuoted) {
++Current;
// Repeat until the previous character was not a '\' or was an escaped
// backslash.
} while (*(Current - 1) == '\\' && wasEscaped(Start + 1, Current));
} while ( Current != End
&& *(Current - 1) == '\\'
&& wasEscaped(Start + 1, Current));
} else {
skip(1);
while (true) {