Don't check for overlapping in strncpy/stpncpy for now

They check overlap across the whole range of the given length, but
the given length is not what will actually be copied, rather it's
the maximum length (if src is shorter, only length of src will be
copied). This triggers false positives and traps where it shouldn't
(e.g. in ICU tests).

Reported-by: q66

4 files changed, 8 insertions, 0 deletions

diff --git a/tests/test_stpncpy_overwrite_over.c b/tests/test_stpncpy_overwrite_over.c
index e66d8d3..004e2b8 100644
--- a/tests/test_stpncpy_overwrite_over.c
+++ b/tests/test_stpncpy_overwrite_over.c
@@ -3,6 +3,7 @@
 #include <string.h>
 
 int main(int argc, char** argv) {
+#if 0
   char buffer[9] = {'A', 'A', 'A', 'A', 'B', 'B', 'B', 'B', '\0'};
   puts(buffer);
 
@@ -11,5 +12,6 @@ int main(int argc, char** argv) {
   CHK_FAIL_END
 
   puts(buffer);
+#endif
   return ret;
 }
diff --git a/tests/test_stpncpy_overwrite_under.c b/tests/test_stpncpy_overwrite_under.c
index 5625ff8..845ae29 100644
--- a/tests/test_stpncpy_overwrite_under.c
+++ b/tests/test_stpncpy_overwrite_under.c
@@ -3,6 +3,7 @@
 #include <string.h>
 
 int main(int argc, char** argv) {
+#if 0
   char buffer[9] = {'A', 'A', 'A', 'A', 'B', 'B', 'B', 'B', '\0'};
   puts(buffer);
 
@@ -11,5 +12,6 @@ int main(int argc, char** argv) {
   CHK_FAIL_END
 
   puts(buffer);
+#endif
   return ret;
 }
diff --git a/tests/test_strncpy_overwrite_over.c b/tests/test_strncpy_overwrite_over.c
index d584bcc..94b6d2b 100644
--- a/tests/test_strncpy_overwrite_over.c
+++ b/tests/test_strncpy_overwrite_over.c
@@ -3,6 +3,7 @@
 #include <string.h>
 
 int main(int argc, char** argv) {
+#if 0
   char buffer[9] = {'A', 'A', 'A', 'A', 'B', 'B', 'B', 'B', '\0'};
   puts(buffer);
 
@@ -11,5 +12,6 @@ int main(int argc, char** argv) {
   CHK_FAIL_END
 
   puts(buffer);
+#endif
   return ret;
 }
diff --git a/tests/test_strncpy_overwrite_under.c b/tests/test_strncpy_overwrite_under.c
index f554b28..8a0a4af 100644
--- a/tests/test_strncpy_overwrite_under.c
+++ b/tests/test_strncpy_overwrite_under.c
@@ -3,6 +3,7 @@
 #include <string.h>
 
 int main(int argc, char** argv) {
+#if 0
   char buffer[9] = {'A', 'A', 'A', 'A', 'B', 'B', 'B', 'B', '\0'};
   puts(buffer);
 
@@ -11,5 +12,6 @@ int main(int argc, char** argv) {
   CHK_FAIL_END
 
   puts(buffer);
+#endif
   return ret;
 }