Flawfinder version 2.0.10, (C) 2001-2019 David A. Wheeler. Number of rules (primarily dangerous function names) in C/C++ ruleset: 223 Examining data/r-cran-brio-1.1.0/src/brio.h Examining data/r-cran-brio-1.1.0/src/file_line_endings.c Examining data/r-cran-brio-1.1.0/src/init.c Examining data/r-cran-brio-1.1.0/src/read_file.c Examining data/r-cran-brio-1.1.0/src/read_file_raw.c Examining data/r-cran-brio-1.1.0/src/read_lines.c Examining data/r-cran-brio-1.1.0/src/write_file.c Examining data/r-cran-brio-1.1.0/src/brio.c Examining data/r-cran-brio-1.1.0/src/write_lines.c FINAL RESULTS: data/r-cran-brio-1.1.0/src/brio.c:14:3: [2] (buffer) wchar_t: Statically-sized arrays can be improperly restricted, leading to potential overflows or other issues (CWE-119!/CWE-120). Perform bounds checking, use functions that limit length, or ensure that the size is larger than the maximum possible length. wchar_t mode_w[10]; data/r-cran-brio-1.1.0/src/brio.c:15:3: [2] (buffer) MultiByteToWideChar: Requires maximum length in CHARACTERS, not bytes (CWE-120). MultiByteToWideChar(CP_UTF8, 0, mode, -1, mode_w, 9); data/r-cran-brio-1.1.0/src/brio.c:19:16: [2] (buffer) MultiByteToWideChar: Requires maximum length in CHARACTERS, not bytes (CWE-120). size_t len = MultiByteToWideChar(CP_UTF8, 0, path, -1, NULL, 0); data/r-cran-brio-1.1.0/src/brio.c:28:3: [2] (buffer) MultiByteToWideChar: Requires maximum length in CHARACTERS, not bytes (CWE-120). MultiByteToWideChar(CP_UTF8, 0, path, -1, buf, len); data/r-cran-brio-1.1.0/src/brio.c:31:9: [2] (misc) fopen: Check when opening files - can an attacker redirect it (via symlinks), force the opening of special file type (e.g., device files), move things around to create a race condition, control its ancestors, or change its contents? (CWE-362). out = fopen(path, mode); data/r-cran-brio-1.1.0/src/read_file_raw.c:36:3: [2] (buffer) memcpy: Does not check for buffer overflows when copying to destination (CWE-120). Make sure destination can always hold the source data. memcpy(RAW(ans), read_buf, file_size); data/r-cran-brio-1.1.0/src/read_lines.c:33:3: [2] (buffer) memcpy: Does not check for buffer overflows when copying to destination (CWE-120). Make sure destination can always hold the source data. memcpy(buf->data + buf->size, in, in_size); data/r-cran-brio-1.1.0/src/read_lines.c:59:3: [2] (buffer) char: Statically-sized arrays can be improperly restricted, leading to potential overflows or other issues (CWE-119!/CWE-120). Perform bounds checking, use functions that limit length, or ensure that the size is larger than the maximum possible length. char read_buf[READ_BUF_SIZE]; data/r-cran-brio-1.1.0/src/file_line_endings.c:19:15: [1] (buffer) fgetc: Check buffer boundaries if used in a loop including recursive loops (CWE-120, CWE-20). while ((c = fgetc(fp)) != EOF) { ANALYSIS SUMMARY: Hits = 9 Lines analyzed = 386 in approximately 0.02 seconds (20122 lines/second) Physical Source Lines of Code (SLOC) = 296 Hits@level = [0] 3 [1] 1 [2] 8 [3] 0 [4] 0 [5] 0 Hits@level+ = [0+] 12 [1+] 9 [2+] 8 [3+] 0 [4+] 0 [5+] 0 Hits/KSLOC@level+ = [0+] 40.5405 [1+] 30.4054 [2+] 27.027 [3+] 0 [4+] 0 [5+] 0 Dot directories skipped = 1 (--followdotdir overrides) Minimum risk level = 1 Not every hit is necessarily a security vulnerability. There may be other security vulnerabilities; review your code! See 'Secure Programming HOWTO' (https://dwheeler.com/secure-programs) for more information.