diff options
Diffstat (limited to 'src/stdio/freopen.c')
| -rw-r--r-- | src/stdio/freopen.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/stdio/freopen.c b/src/stdio/freopen.c index d361023a..050e556b 100644 --- a/src/stdio/freopen.c +++ b/src/stdio/freopen.c @@ -55,8 +55,10 @@ FILE * freopen(const char * restrict filename, const char * restrict mode, FILE int fd = -1; SIGNAL_SAFE(0); - ASSERT_NOOVERLAP(filename, strlen(filename), mode, strlen(mode)); - ASSERT_NOOVERLAP(filename, strlen(filename), stream, sizeof(*stream)); + if (filename) { + ASSERT_NOOVERLAP(filename, strlen(filename), mode, strlen(mode)); + ASSERT_NOOVERLAP(filename, strlen(filename), stream, sizeof(*stream)); + } ASSERT_NOOVERLAP(mode, strlen(mode), stream, sizeof(*stream)); for (i = 0; i < sizeof(modemap) / sizeof(modemap[0]); i++) { |