[CStringSyntaxChecker] Improvements of strlcpy check

Adding an additional check whenwe offset fro the buffer base address.

Reviewers: george.karpenkov,NoQ

Reviewed By: george.karpenkov

Differential Revision: https://reviews.llvm.org/D49633

llvm-svn: 337721

1 files changed, 1 insertions, 0 deletions

diff --git a/clang/test/Analysis/cstring-syntax.c b/clang/test/Analysis/cstring-syntax.c
index f64682b418d..fe1253bedba 100644
--- a/clang/test/Analysis/cstring-syntax.c
+++ b/clang/test/Analysis/cstring-syntax.c
@@ -31,4 +31,5 @@ void testStrlcpy(const char *src) {
   strlcpy(dest, src, badlen); // expected-warning {{The third argument is larger than the size of the input buffer. Replace with the value 'sizeof(dest)` or lower}}
   strlcpy(dest, src, ulen);
   strlcpy(dest + 5, src, 5);
+  strlcpy(dest + 5, src, 10); // expected-warning {{The third argument is larger than the size of the input buffer.}}
 }