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/grhino-0.16.1/board.cc
Examining data/grhino-0.16.1/load.cc
Examining data/grhino-0.16.1/gen_pattern.cc
Examining data/grhino-0.16.1/gen_opening.cc
Examining data/grhino-0.16.1/pattern.cc
Examining data/grhino-0.16.1/bitboard.cc
Examining data/grhino-0.16.1/gtp.cc
Examining data/grhino-0.16.1/hash.cc
Examining data/grhino-0.16.1/hash.h
Examining data/grhino-0.16.1/proginfo.h
Examining data/grhino-0.16.1/iter.h
Examining data/grhino-0.16.1/randboard.h
Examining data/grhino-0.16.1/gtstream.cc
Examining data/grhino-0.16.1/gpref.cc
Examining data/grhino-0.16.1/gameinfo.cc
Examining data/grhino-0.16.1/gevalwin.cc
Examining data/grhino-0.16.1/ggamewin.h
Examining data/grhino-0.16.1/game.cc
Examining data/grhino-0.16.1/randboard.cc
Examining data/grhino-0.16.1/pattern.h
Examining data/grhino-0.16.1/rand.h
Examining data/grhino-0.16.1/gtstream.h
Examining data/grhino-0.16.1/binfile.h
Examining data/grhino-0.16.1/binfile.cc
Examining data/grhino-0.16.1/gpref.h
Examining data/grhino-0.16.1/parity.cc
Examining data/grhino-0.16.1/ghistwin.cc
Examining data/grhino-0.16.1/parity.h
Examining data/grhino-0.16.1/gtp.h
Examining data/grhino-0.16.1/fdstream.h
Examining data/grhino-0.16.1/book.cc
Examining data/grhino-0.16.1/bitboard.h
Examining data/grhino-0.16.1/alphabeta.cc
Examining data/grhino-0.16.1/rand.cc
Examining data/grhino-0.16.1/log_proc.h
Examining data/grhino-0.16.1/board.h
Examining data/grhino-0.16.1/opening.cc
Examining data/grhino-0.16.1/proginfo.cc
Examining data/grhino-0.16.1/order.cc
Examining data/grhino-0.16.1/table-dat.h
Examining data/grhino-0.16.1/gen_book.cc
Examining data/grhino-0.16.1/test.cc
Examining data/grhino-0.16.1/iter.cc
Examining data/grhino-0.16.1/gutil.h
Examining data/grhino-0.16.1/grhino.cc
Examining data/grhino-0.16.1/ghistwin.h
Examining data/grhino-0.16.1/boardio.cc
Examining data/grhino-0.16.1/game.h
Examining data/grhino-0.16.1/gevalwin.h
Examining data/grhino-0.16.1/load.h
Examining data/grhino-0.16.1/gen_table.cc
Examining data/grhino-0.16.1/aiai.cc
Examining data/grhino-0.16.1/boardio.h
Examining data/grhino-0.16.1/gameinfo.h
Examining data/grhino-0.16.1/book.h
Examining data/grhino-0.16.1/alphabeta.h
Examining data/grhino-0.16.1/opening-dat.h
Examining data/grhino-0.16.1/dump_pattern.cc
Examining data/grhino-0.16.1/gtp-rhino.cc
Examining data/grhino-0.16.1/order.h
Examining data/grhino-0.16.1/ggamewin.cc
Examining data/grhino-0.16.1/opening.h
Examining data/grhino-0.16.1/gutil.cc
FINAL RESULTS:
data/grhino-0.16.1/aiai.cc:212:7: [4] (shell) execlp:
This causes a new program to execute and is difficult to use safely
(CWE-78). try using a library call that implements the same functionality
if available.
if (execlp("/bin/sh", "sh", "-c", cmd_black, 0) == -1)
data/grhino-0.16.1/aiai.cc:232:7: [4] (shell) execlp:
This causes a new program to execute and is difficult to use safely
(CWE-78). try using a library call that implements the same functionality
if available.
if (execlp("/bin/sh", "sh", "-c", cmd_white, 0) == -1)
data/grhino-0.16.1/aiai.cc:111:2: [3] (random) srand:
This function is not sufficiently random for security-related functions
such as key and nonce creation (CWE-327). Use a more secure technique for
acquiring random values.
srand(time(NULL));
data/grhino-0.16.1/game.cc:347:15: [3] (buffer) getenv:
Environment variables are untrustable input if they can be set by an
attacker. They can have any content and length, and the same variable can
be set more than once (CWE-807, CWE-20). Check environment variables
carefully before using them.
char *env = getenv("HOME");
data/grhino-0.16.1/ggamewin.cc:81:31: [3] (random) random:
This function is not sufficiently random for security-related functions
such as key and nonce creation (CWE-327). Use a more secure technique for
acquiring random values.
if (res->vec->operator[](i).random) {
data/grhino-0.16.1/grhino.cc:895:2: [3] (random) srand:
This function is not sufficiently random for security-related functions
such as key and nonce creation (CWE-327). Use a more secure technique for
acquiring random values.
srand(time(NULL));
data/grhino-0.16.1/gtp-rhino.cc:704:2: [3] (random) srand:
This function is not sufficiently random for security-related functions
such as key and nonce creation (CWE-327). Use a more secure technique for
acquiring random values.
srand(time(NULL));
data/grhino-0.16.1/load.cc:102:11: [3] (random) random:
This function is not sufficiently random for security-related functions
such as key and nonce creation (CWE-327). Use a more secure technique for
acquiring random values.
if (game.random)
data/grhino-0.16.1/load.h:31:8: [3] (random) random:
This function is not sufficiently random for security-related functions
such as key and nonce creation (CWE-327). Use a more secure technique for
acquiring random values.
bool random;
data/grhino-0.16.1/load.h:33:50: [3] (random) random:
This function is not sufficiently random for security-related functions
such as key and nonce creation (CWE-327). Use a more secure technique for
acquiring random values.
game_library_log(int b, int w): game_log(b, w), random(false) {}
data/grhino-0.16.1/log_proc.h:238:7: [3] (random) random:
This function is not sufficiently random for security-related functions
such as key and nonce creation (CWE-327). Use a more secure technique for
acquiring random values.
if (random)
data/grhino-0.16.1/aiai.cc:510:3: [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 buffer[80];
data/grhino-0.16.1/aiai.cc:543:3: [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 buffer[80];
data/grhino-0.16.1/binfile.cc:51:11: [2] (misc) open:
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).
handle = open(f.c_str(), O_RDONLY);
data/grhino-0.16.1/binfile.cc:147:2: [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 buf[16];
data/grhino-0.16.1/binfile.cc:259:11: [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.
unsigned char buf[16];
data/grhino-0.16.1/binfile.h:38:12: [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.
unsigned char buffer[max_buffer_size];
data/grhino-0.16.1/binfile.h:65:12: [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.
unsigned char buffer[max_buffer_size];
data/grhino-0.16.1/bitboard.cc:57:2: [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(&board, board_init, sizeof(board_type));
data/grhino-0.16.1/bitboard.cc:66:2: [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(board, board_init, sizeof(bit_board_type));
data/grhino-0.16.1/bitboard.cc:80:2: [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(this, &src, sizeof(bit_board_info));
data/grhino-0.16.1/board.cc:105:2: [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(board, board_init, sizeof(byte_board_type));
data/grhino-0.16.1/board.cc:121:2: [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(this, &src, sizeof(byte_board_info));
data/grhino-0.16.1/dump_pattern.cc:125:15: [2] (misc) open:
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).
int handle = open(get_pattern_file(pattern), O_RDONLY);
data/grhino-0.16.1/game.cc:116:7: [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.
const char *game_mode_name[NUM_GAME_MODE] = {
data/grhino-0.16.1/game.cc:133:7: [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.
const char *level_name[NUM_LEVEL_INFO+1] = {
data/grhino-0.16.1/game.cc:138:7: [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.
const char *opening_var_name[NUM_OPENING_VAR] = {
data/grhino-0.16.1/game.cc:154:7: [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.
const char *start_game_mode_name[NUM_START_GAME_MODE] = {
data/grhino-0.16.1/game.cc:481:2: [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 buffer[80];
data/grhino-0.16.1/game.cc:599:7: [2] (misc) open:
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).
h = open(file1.c_str(), O_CREAT | O_EXCL, S_IRWXU);
data/grhino-0.16.1/game.h:81:14: [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.
extern const char *game_mode_name[NUM_GAME_MODE];
data/grhino-0.16.1/game.h:98:14: [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.
extern const char *level_name[NUM_LEVEL_INFO+1];
data/grhino-0.16.1/game.h:102:14: [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.
extern const char *opening_var_name[NUM_OPENING_VAR];
data/grhino-0.16.1/game.h:121:14: [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.
extern const char *start_game_mode_name[NUM_START_GAME_MODE];
data/grhino-0.16.1/gen_pattern.cc:341:15: [2] (misc) open:
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).
int handle = open(get_pattern_file(p), O_RDONLY);
data/grhino-0.16.1/ggamewin.cc:73:2: [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 buf1[20], buf2[20], buf3[50];
data/grhino-0.16.1/gpref.cc:68:7: [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.
const char *toolbar_icon_name[NUM_TOOLBAR_ICON_SIZE] = {
data/grhino-0.16.1/pattern.cc:48:7: [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.
const char row1_pattern[4][8] = {
data/grhino-0.16.1/pattern.cc:55:7: [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.
const char row2_pattern[4][8] = {
data/grhino-0.16.1/pattern.cc:62:7: [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.
const char row3_pattern[4][8] = {
data/grhino-0.16.1/pattern.cc:69:7: [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.
const char row4_pattern[4][8] = {
data/grhino-0.16.1/pattern.cc:76:7: [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.
const char diag1_pattern[2][8] = {
data/grhino-0.16.1/pattern.cc:81:7: [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.
const char diag2_pattern[4][7] = {
data/grhino-0.16.1/pattern.cc:88:7: [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.
const char diag3_pattern[4][6] = {
data/grhino-0.16.1/pattern.cc:95:7: [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.
const char diag4_pattern[4][5] = {
data/grhino-0.16.1/pattern.cc:102:7: [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.
const char diag5_pattern[4][4] = {
data/grhino-0.16.1/pattern.cc:109:7: [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.
const char edge_x_pattern[4][10] = {
data/grhino-0.16.1/pattern.cc:116:7: [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.
const char corner5x2_pattern[8][10] = {
data/grhino-0.16.1/pattern.cc:220:15: [2] (misc) open:
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).
int handle = open(get_pattern_data_file(p), O_RDONLY);
data/grhino-0.16.1/pattern.h:43:8: [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.
const char *pattern[max_num_pattern];
data/grhino-0.16.1/table-dat.h:3:1: [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 bit_count_table[256] = {
data/grhino-0.16.1/aiai.cc:126:7: [1] (buffer) read:
Check buffer boundaries if used in a loop including recursive loops
(CWE-120, CWE-20).
if (read(h, &c, 1) != 1)
data/grhino-0.16.1/aiai.cc:149:7: [1] (buffer) read:
Check buffer boundaries if used in a loop including recursive loops
(CWE-120, CWE-20).
if (read(h, &c, 1) != 1)
data/grhino-0.16.1/aiai.cc:242:26: [1] (buffer) strlen:
Does not handle strings that are not \0-terminated; if given one it may
perform an over-read (it could cause a crash if unprotected) (CWE-126).
gtpcmd_boardsize, strlen(gtpcmd_boardsize));
data/grhino-0.16.1/aiai.cc:244:26: [1] (buffer) strlen:
Does not handle strings that are not \0-terminated; if given one it may
perform an over-read (it could cause a crash if unprotected) (CWE-126).
gtpcmd_boardsize, strlen(gtpcmd_boardsize));
data/grhino-0.16.1/aiai.cc:251:46: [1] (buffer) strlen:
Does not handle strings that are not \0-terminated; if given one it may
perform an over-read (it could cause a crash if unprotected) (CWE-126).
write(fifo_black_to_client[1], gtpcmd_quit, strlen(gtpcmd_quit));
data/grhino-0.16.1/aiai.cc:252:46: [1] (buffer) strlen:
Does not handle strings that are not \0-terminated; if given one it may
perform an over-read (it could cause a crash if unprotected) (CWE-126).
write(fifo_white_to_client[1], gtpcmd_quit, strlen(gtpcmd_quit));
data/grhino-0.16.1/aiai.cc:281:29: [1] (buffer) strlen:
Does not handle strings that are not \0-terminated; if given one it may
perform an over-read (it could cause a crash if unprotected) (CWE-126).
gtpcmd_clear_board, strlen(gtpcmd_clear_board));
data/grhino-0.16.1/aiai.cc:283:29: [1] (buffer) strlen:
Does not handle strings that are not \0-terminated; if given one it may
perform an over-read (it could cause a crash if unprotected) (CWE-126).
gtpcmd_clear_board, strlen(gtpcmd_clear_board));
data/grhino-0.16.1/aiai.cc:319:32: [1] (buffer) strlen:
Does not handle strings that are not \0-terminated; if given one it may
perform an over-read (it could cause a crash if unprotected) (CWE-126).
gtpcmd_genmove_black, strlen(gtpcmd_genmove_black));
data/grhino-0.16.1/aiai.cc:334:32: [1] (buffer) strlen:
Does not handle strings that are not \0-terminated; if given one it may
perform an over-read (it could cause a crash if unprotected) (CWE-126).
gtpcmd_genmove_white, strlen(gtpcmd_genmove_white));
data/grhino-0.16.1/binfile.cc:85:18: [1] (buffer) read:
Check buffer boundaries if used in a loop including recursive loops
(CWE-120, CWE-20).
int size_read = read(handle, buffer+size_in_buffer, size_to_read);
data/grhino-0.16.1/dump_pattern.cc:146:7: [1] (buffer) read:
Check buffer boundaries if used in a loop including recursive loops
(CWE-120, CWE-20).
if (read(handle, pat, size) != size) {
data/grhino-0.16.1/game.cc:621:3: [1] (obsolete) usleep:
This C routine is considered obsolete (as opposed to the shell command by
the same name). The interaction of this function with SIGALRM and other
timer functions such as sleep(), alarm(), setitimer(), and nanosleep() is
unspecified (CWE-676). Use nanosleep(2) or setitimer(2) instead.
usleep(100); // Wait 0.1 sec
data/grhino-0.16.1/gen_pattern.cc:358:7: [1] (buffer) read:
Check buffer boundaries if used in a loop including recursive loops
(CWE-120, CWE-20).
if (read(handle, pat[p][pos], io_size) != io_size) {
data/grhino-0.16.1/pattern.cc:229:7: [1] (buffer) read:
Check buffer boundaries if used in a loop including recursive loops
(CWE-120, CWE-20).
if (read(handle, pattern_table[p][i], comp_size) != comp_size) {
ANALYSIS SUMMARY:
Hits = 66
Lines analyzed = 15373 in approximately 0.43 seconds (35965 lines/second)
Physical Source Lines of Code (SLOC) = 11388
Hits@level = [0] 9 [1] 15 [2] 40 [3] 9 [4] 2 [5] 0
Hits@level+ = [0+] 75 [1+] 66 [2+] 51 [3+] 11 [4+] 2 [5+] 0
Hits/KSLOC@level+ = [0+] 6.58588 [1+] 5.79557 [2+] 4.4784 [3+] 0.965929 [4+] 0.175623 [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.