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| author | Jakob Kaivo <jkk@ung.org> | 2024-01-31 13:24:56 -0500 |
|---|---|---|
| committer | Jakob Kaivo <jkk@ung.org> | 2024-01-31 13:24:56 -0500 |
| commit | 4b43b375b7abae22070cd86bfc26a8222233150e (patch) | |
| tree | 6ff165b17879e80300cb6d05b5537a65c82c2dc7 /src/stdio/fopen.c | |
| parent | ab3c589cd14c2b7efd79c89fd75ea35edcf9edff (diff) | |
check for overlapping pointers
Diffstat (limited to 'src/stdio/fopen.c')
| -rw-r--r-- | src/stdio/fopen.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/stdio/fopen.c b/src/stdio/fopen.c index e2ff7efc..4c9eabd7 100644 --- a/src/stdio/fopen.c +++ b/src/stdio/fopen.c @@ -1,6 +1,7 @@ #include <errno.h> #include <stdio.h> #include <stdlib.h> +#include <string.h> #include "_stdio.h" /** open a file stream **/ @@ -11,6 +12,7 @@ FILE * fopen(const char * restrict filename, const char * restrict mode) size_t i; SIGNAL_SAFE(0); + ASSERT_NOOVERLAP(filename, strlen(filename), mode, strlen(mode)); for (i = 0; i < FOPEN_MAX; i++) { if (__stdio.FILES[i].bmode == 0) { |