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/httping-2.5/colors.c Examining data/httping-2.5/colors.h Examining data/httping-2.5/cookies.c Examining data/httping-2.5/cookies.h Examining data/httping-2.5/error.c Examining data/httping-2.5/error.h Examining data/httping-2.5/fft.c Examining data/httping-2.5/fft.h Examining data/httping-2.5/gen.c Examining data/httping-2.5/gen.h Examining data/httping-2.5/help.c Examining data/httping-2.5/help.h Examining data/httping-2.5/http.c Examining data/httping-2.5/http.h Examining data/httping-2.5/io.c Examining data/httping-2.5/io.h Examining data/httping-2.5/kalman.c Examining data/httping-2.5/kalman.h Examining data/httping-2.5/main.c Examining data/httping-2.5/main.h Examining data/httping-2.5/mssl.c Examining data/httping-2.5/mssl.h Examining data/httping-2.5/nc.c Examining data/httping-2.5/nc.h Examining data/httping-2.5/res.c Examining data/httping-2.5/res.h Examining data/httping-2.5/socks5.c Examining data/httping-2.5/socks5.h Examining data/httping-2.5/tcp.c Examining data/httping-2.5/tcp.h Examining data/httping-2.5/test_TFO.c Examining data/httping-2.5/test_fftw3.c Examining data/httping-2.5/test_ncurses.c Examining data/httping-2.5/test_ncurses2.c Examining data/httping-2.5/test_openssl.c Examining data/httping-2.5/utils.c Examining data/httping-2.5/utils.h FINAL RESULTS: data/httping-2.5/error.c:20:8: [4] (format) vfprintf: If format strings can be influenced by an attacker, they can be exploited (CWE-134). Use a constant for the format specification. (void)vfprintf(stderr, format, ap); data/httping-2.5/error.c:37:6: [4] (format) vsnprintf: If format strings can be influenced by an attacker, they can be exploited, and note that sprintf variations do not always \0-terminate (CWE-134). Use a constant for the format specification. if (vsnprintf(last_error, sizeof last_error, fmt, ap) >= buffer_size) data/httping-2.5/main.c:346:3: [4] (buffer) sprintf: Does not check for buffer overflows (CWE-120). Use sprintf_s, snprintf, or vsnprintf. sprintf(auth_string, "%s:%s", auth_usr, auth_password); data/httping-2.5/main.c:358:3: [4] (buffer) sprintf: Does not check for buffer overflows (CWE-120). Use sprintf_s, snprintf, or vsnprintf. sprintf(ppa_string, "%s:%s", proxy_user, proxy_password); data/httping-2.5/main.c:397:3: [4] (buffer) sprintf: Does not check for buffer overflows (CWE-120). Use sprintf_s, snprintf, or vsnprintf. sprintf(in_use, "http://%s", in); data/httping-2.5/main.c:399:3: [4] (buffer) sprintf: Does not check for buffer overflows (CWE-120). Use sprintf_s, snprintf, or vsnprintf. sprintf(in_use, "https://%s/", in); data/httping-2.5/main.c:401:3: [4] (buffer) sprintf: Does not check for buffer overflows (CWE-120). Use sprintf_s, snprintf, or vsnprintf. sprintf(in_use, "http://%s/", in); data/httping-2.5/mssl.c:349:3: [4] (buffer) sprintf: Does not check for buffer overflows (CWE-120). Use sprintf_s, snprintf, or vsnprintf. sprintf(ppa_string, "%s:%s", proxy_user, proxy_password); data/httping-2.5/nc.c:341:9: [4] (format) vsnprintf: If format strings can be influenced by an attacker, they can be exploited, and note that sprintf variations do not always \0-terminate (CWE-134). Use a constant for the format specification. vsnprintf(buffer, sizeof buffer, fmt, ap); data/httping-2.5/nc.c:360:9: [4] (format) vsnprintf: If format strings can be influenced by an attacker, they can be exploited, and note that sprintf variations do not always \0-terminate (CWE-134). Use a constant for the format specification. vsnprintf(buffer, sizeof buffer, fmt, ap); data/httping-2.5/help.c:299:10: [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. dummy = getenv("TERM"); data/httping-2.5/kalman.c:75:14: [3] (random) drand48: 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. double v = drand48(); data/httping-2.5/main.c:94:31: [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 *dummy = getenv("COLUMNS"); data/httping-2.5/main.c:100:25: [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. dummy = getenv("LINES"); data/httping-2.5/main.c:300:59: [3] (random) lrand48: 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. snprintf(pb + 1, sizeof pb - 1, "%s=%ld", proxy_buster, lrand48()); data/httping-2.5/main.c:575:14: [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 *str = getenv(use_ssl ? "https_proxy" : "http_proxy"); data/httping-2.5/main.c:1059:13: [3] (buffer) getopt_long: Some older implementations do not protect against internal buffer overflows (CWE-120, CWE-20). Check implementation on installation, or limit the size of all string inputs. while((c = getopt_long(argc, argv, "DKEA5MvYWT:ZQ6Sy:XL:bBg:h:p:c:i:Gx:t:o:e:falqsmV?I:R:rn:N:zP:U:C:F", long_options, NULL)) != -1) data/httping-2.5/error.c:12:1: [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 last_error[4096] = { 0 }; data/httping-2.5/fft.c:52:2: [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(pin, in, sizeof(double) * sample_rate); data/httping-2.5/gen.c:46:23: [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. void encode_tryptique(char source[3], char result[4]) data/httping-2.5/gen.c:46:39: [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. void encode_tryptique(char source[3], char result[4]) data/httping-2.5/gen.c:73:3: [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 pad[3]; data/httping-2.5/gen.c:75:3: [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(pad, source, source_lenght); data/httping-2.5/help.c:16:13: [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). FILE *fh = fopen(SPAM_FILE, "r"); data/httping-2.5/help.c:21:3: [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[4096], *dummy = 0x00; data/httping-2.5/help.c:38:14: [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). FILE *fh = fopen(SPAM_FILE, "w"); data/httping-2.5/help.c:64:27: [2] (integer) atoi: Unless checked, the resulting number can exceed the expected range (CWE-190). If source untrusted, check both minimum and maximum, even if the input had no minus sign (large numbers can roll over into negative number; consider saving to an unsigned value if that is intended). if (n_rparts >= 2 && ((atoi(rparts[0]) >= 3 && atoi(rparts[1]) >= 6) || atoi(rparts[0]) >= 4)) data/httping-2.5/help.c:64:51: [2] (integer) atoi: Unless checked, the resulting number can exceed the expected range (CWE-190). If source untrusted, check both minimum and maximum, even if the input had no minus sign (large numbers can roll over into negative number; consider saving to an unsigned value if that is intended). if (n_rparts >= 2 && ((atoi(rparts[0]) >= 3 && atoi(rparts[1]) >= 6) || atoi(rparts[0]) >= 4)) data/httping-2.5/help.c:64:76: [2] (integer) atoi: Unless checked, the resulting number can exceed the expected range (CWE-190). If source untrusted, check both minimum and maximum, even if the input had no minus sign (large numbers can roll over into negative number; consider saving to an unsigned value if that is intended). if (n_rparts >= 2 && ((atoi(rparts[0]) >= 3 && atoi(rparts[1]) >= 6) || atoi(rparts[0]) >= 4)) data/httping-2.5/help.c:155:3: [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(copy, p, len_after_ww); data/httping-2.5/help.c:174:2: [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 host[256] = { 0 }; data/httping-2.5/help.c:307:3: [2] (buffer) strcpy: Does not check for buffer overflows when copying to destination [MS-banned] (CWE-120). Consider using snprintf, strcpy_s, or strlcpy (warning: strncpy easily misused). Risk is low because the source is a constant string. strcpy(host, "localhost"); data/httping-2.5/main.c:96:34: [2] (integer) atoi: Unless checked, the resulting number can exceed the expected range (CWE-190). If source untrusted, check both minimum and maximum, even if the input had no minus sign (large numbers can roll over into negative number; consider saving to an unsigned value if that is intended). *max_x = atoi(dummy); data/httping-2.5/main.c:102:34: [2] (integer) atoi: Unless checked, the resulting number can exceed the expected range (CWE-190). If source untrusted, check both minimum and maximum, even if the input had no minus sign (large numbers can roll over into negative number; consider saving to an unsigned value if that is intended). *max_y = atoi(dummy); data/httping-2.5/main.c:209:2: [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[4096] = { 0 }; data/httping-2.5/main.c:218:3: [2] (buffer) sprintf: Does not check for buffer overflows (CWE-120). Use sprintf_s, snprintf, or vsnprintf. Risk is low because the source has a constant maximum length. sprintf(buffer, "%04d/%02d/%02d ", tvm -> tm_year + 1900, tvm -> tm_mon + 1, tvm -> tm_mday); data/httping-2.5/main.c:220:3: [2] (buffer) sprintf: Does not check for buffer overflows (CWE-120). Use sprintf_s, snprintf, or vsnprintf. Risk is low because the source has a constant maximum length. sprintf(buffer, "%.6f", get_ts()); data/httping-2.5/main.c:223:3: [2] (buffer) sprintf: Does not check for buffer overflows (CWE-120). Use sprintf_s, snprintf, or vsnprintf. Risk is low because the source has a constant maximum length. sprintf(&buffer[strlen(buffer)], "%02d:%02d:%02d.%03d", tvm -> tm_hour, tvm -> tm_min, tvm -> tm_sec, (int)(tv.tv_usec / 1000)); data/httping-2.5/main.c:270:2: [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[4096] = { 0 }, *lf = NULL; data/httping-2.5/main.c:271:13: [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). FILE *fh = fopen(file, "rb"); data/httping-2.5/main.c:291:2: [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 pb[128] = { 0 }; data/httping-2.5/main.c:343:3: [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 auth_string[256] = { 0 }; data/httping-2.5/main.c:344:3: [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 b64_auth_string[512] = { 0 }; data/httping-2.5/main.c:355:3: [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 ppa_string[256] = { 0 }; data/httping-2.5/main.c:356:3: [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 b64_ppa_string[512] = { 0 }; data/httping-2.5/main.c:383:2: [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 in_use[65536] = { 0 }, *dummy = NULL; data/httping-2.5/main.c:434:14: [2] (integer) atoi: Unless checked, the resulting number can exceed the expected range (CWE-190). If source untrusted, check both minimum and maximum, even if the input had no minus sign (large numbers can roll over into negative number; consider saving to an unsigned value if that is intended). *portnr = atoi(colon2 + 1); data/httping-2.5/main.c:463:15: [2] (integer) atoi: Unless checked, the resulting number can exceed the expected range (CWE-190). If source untrusted, check both minimum and maximum, even if the input had no minus sign (large numbers can roll over into negative number; consider saving to an unsigned value if that is intended). *portnr = atoi(colon + 1); data/httping-2.5/main.c:496:47: [2] (integer) atoi: Unless checked, the resulting number can exceed the expected range (CWE-190). If source untrusted, check both minimum and maximum, even if the input had no minus sign (large numbers can roll over into negative number; consider saving to an unsigned value if that is intended). (*aggregates)[*n_aggregates - 1].interval = atoi(dummy); data/httping-2.5/main.c:780:18: [2] (integer) atoi: Unless checked, the resulting number can exceed the expected range (CWE-190). If source untrusted, check both minimum and maximum, even if the input had no minus sign (large numbers can roll over into negative number; consider saving to an unsigned value if that is intended). *proxy_port = atoi(dummy + 2); data/httping-2.5/main.c:792:18: [2] (integer) atoi: Unless checked, the resulting number can exceed the expected range (CWE-190). If source untrusted, check both minimum and maximum, even if the input had no minus sign (large numbers can roll over into negative number; consider saving to an unsigned value if that is intended). *proxy_port = atoi(dummy + 1); data/httping-2.5/main.c:1068:16: [2] (integer) atoi: Unless checked, the resulting number can exceed the expected range (CWE-190). If source untrusted, check both minimum and maximum, even if the input had no minus sign (large numbers can roll over into negative number; consider saving to an unsigned value if that is intended). send_tos = atoi(optarg); data/httping-2.5/main.c:1073:16: [2] (integer) atoi: Unless checked, the resulting number can exceed the expected range (CWE-190). If source untrusted, check both minimum and maximum, even if the input had no minus sign (large numbers can roll over into negative number; consider saving to an unsigned value if that is intended). priority = atoi(optarg); data/httping-2.5/main.c:1080:22: [2] (integer) atoi: Unless checked, the resulting number can exceed the expected range (CWE-190). If source untrusted, check both minimum and maximum, even if the input had no minus sign (large numbers can roll over into negative number; consider saving to an unsigned value if that is intended). tx_buffer_size = atoi(optarg); data/httping-2.5/main.c:1084:24: [2] (integer) atoi: Unless checked, the resulting number can exceed the expected range (CWE-190). If source untrusted, check both minimum and maximum, even if the input had no minus sign (large numbers can roll over into negative number; consider saving to an unsigned value if that is intended). recv_buffer_size = atoi(optarg); data/httping-2.5/main.c:1100:15: [2] (integer) atoi: Unless checked, the resulting number can exceed the expected range (CWE-190). If source untrusted, check both minimum and maximum, even if the input had no minus sign (large numbers can roll over into negative number; consider saving to an unsigned value if that is intended). max_mtu = atoi(optarg); data/httping-2.5/main.c:1240:17: [2] (integer) atoi: Unless checked, the resulting number can exceed the expected range (CWE-190). If source untrusted, check both minimum and maximum, even if the input had no minus sign (large numbers can roll over into negative number; consider saving to an unsigned value if that is intended). Bps_limit = atoi(optarg); data/httping-2.5/main.c:1279:14: [2] (integer) atoi: Unless checked, the resulting number can exceed the expected range (CWE-190). If source untrusted, check both minimum and maximum, even if the input had no minus sign (large numbers can roll over into negative number; consider saving to an unsigned value if that is intended). portnr = atoi(optarg); data/httping-2.5/main.c:1283:13: [2] (integer) atoi: Unless checked, the resulting number can exceed the expected range (CWE-190). If source untrusted, check both minimum and maximum, even if the input had no minus sign (large numbers can roll over into negative number; consider saving to an unsigned value if that is intended). count = atoi(optarg); data/httping-2.5/main.c:1353:24: [2] (integer) atoi: Unless checked, the resulting number can exceed the expected range (CWE-190). If source untrusted, check both minimum and maximum, even if the input had no minus sign (large numbers can roll over into negative number; consider saving to an unsigned value if that is intended). nagios_exit_code = atoi(optarg); data/httping-2.5/main.c:2000:11: [2] (integer) atoi: Unless checked, the resulting number can exceed the expected range (CWE-190). If source untrusted, check both minimum and maximum, even if the input had no minus sign (large numbers can roll over into negative number; consider saving to an unsigned value if that is intended). len = atoi(&length[17]); data/httping-2.5/main.c:2139:5: [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 current_host[4096] = { 0 }; data/httping-2.5/main.c:2146:73: [2] (integer) atoi: Unless checked, the resulting number can exceed the expected range (CWE-190). If source untrusted, check both minimum and maximum, even if the input had no minus sign (large numbers can roll over into negative number; consider saving to an unsigned value if that is intended). emit_json(1, curncount, dstart, &t_resolve, &t_connect, &t_request, atoi(sc ? sc : "-1"), sc ? sc : "?", headers_len, len, Bps, current_host, fp, toff_diff_ts, tfo_success, &t_ssl, &t_write, &t_close, n_dynamic_cookies, &stats_to, &tcp_rtt_stats, re_tx, pmtu, recv_tos, &t_total); data/httping-2.5/main.c:2180:5: [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 current_host[4096] = { 0 }; data/httping-2.5/mssl.c:301:11: [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 fp_digest[EVP_MAX_MD_SIZE]; data/httping-2.5/mssl.c:320:14: [2] (buffer) sprintf: Does not check for buffer overflows (CWE-120). Use sprintf_s, snprintf, or vsnprintf. Risk is low because the source has a constant maximum length. pos += sprintf(&string[pos], ":%02x", fp_digest[loop]); data/httping-2.5/mssl.c:322:13: [2] (buffer) sprintf: Does not check for buffer overflows (CWE-120). Use sprintf_s, snprintf, or vsnprintf. Risk is low because the source has a constant maximum length. pos = sprintf(&string[pos], "%02x", fp_digest[loop]); data/httping-2.5/mssl.c:336:2: [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 request_headers[4096] = { 0 }; data/httping-2.5/mssl.c:346:3: [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 ppa_string[256] = { 0 }; data/httping-2.5/mssl.c:347:3: [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 b64_ppa_string[512] = { 0 }; data/httping-2.5/mssl.c:390:6: [2] (integer) atoi: Unless checked, the resulting number can exceed the expected range (CWE-190). If source untrusted, check both minimum and maximum, even if the input had no minus sign (large numbers can roll over into negative number; consider saving to an unsigned value if that is intended). if (atoi(code + 1) != 200) data/httping-2.5/nc.c:337:2: [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[4096] = { 0 }; data/httping-2.5/nc.c:356:2: [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[4096] = { 0 }; data/httping-2.5/nc.c:748:3: [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[4096] = { 0 }, *scc_str = NULL, *kalman_str = NULL; data/httping-2.5/nc.c:799:11: [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. static char prev_sf[48] = { 0 }; data/httping-2.5/nc.c:807:5: [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(prev_sf, fp, 47); data/httping-2.5/res.c:21:2: [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 servname[10]; data/httping-2.5/res.c:59:2: [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(addr, ai_use->ai_addr, ai_use->ai_addrlen); data/httping-2.5/socks5.c:23:11: [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 io_buffer[256] = { 0 }; data/httping-2.5/utils.c:79:2: [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(&(*to)[len_to], buffer, len_what); data/httping-2.5/help.c:120:7: [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). for(;strlen(p);) data/httping-2.5/help.c:129:13: [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). str_len = strlen(p); data/httping-2.5/io.c:47:10: [1] (buffer) read: Check buffer boundaries if used in a loop including recursive loops (CWE-120, CWE-20). return read(fd, whereto, len); data/httping-2.5/io.c:84:9: [1] (buffer) read: Check buffer boundaries if used in a loop including recursive loops (CWE-120, CWE-20). rc = read(fd, whereto, len); data/httping-2.5/main.c:133:56: [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). if (!shown && ncurses_mode && in != NULL && (len_in = strlen(in) - 4) > 0) data/httping-2.5/main.c:223:19: [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). sprintf(&buffer[strlen(buffer)], "%02d:%02d:%02d.%03d", tvm -> tm_hour, tvm -> tm_min, tvm -> tm_sec, (int)(tv.tv_usec / 1000)); data/httping-2.5/main.c:347:24: [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). enc_b64(auth_string, strlen(auth_string), b64_auth_string); data/httping-2.5/main.c:359:23: [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). enc_b64(ppa_string, strlen(ppa_string), b64_ppa_string); data/httping-2.5/main.c:385:6: [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). if (strlen(in) >= sizeof in_use) data/httping-2.5/main.c:394:11: [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). in_use[strlen(in_use)] = '/'; data/httping-2.5/main.c:1680:14: [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). req_len = strlen(request); data/httping-2.5/main.c:1839:5: [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(write_sleep); data/httping-2.5/main.c:2006:19: [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). headers_len = strlen(reply) + 4 - overflow; data/httping-2.5/main.c:2056:15: [1] (buffer) read: Check buffer boundaries if used in a loop including recursive loops (CWE-120, CWE-20). int rc = read(fd, buffer, n); data/httping-2.5/main.c:2374:4: [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((useconds_t)(cur_sleep * 1000000.0)); data/httping-2.5/mssl.c:350:23: [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). enc_b64(ppa_string, strlen(ppa_string), b64_ppa_string); data/httping-2.5/socks5.c:85:83: [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). io_len = snprintf((char *)&io_buffer[1], sizeof io_buffer - 1, "%c%s%c%s", (int)strlen(socks5_username), socks5_username, (int)strlen(socks5_password), socks5_password); data/httping-2.5/socks5.c:85:130: [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). io_len = snprintf((char *)&io_buffer[1], sizeof io_buffer - 1, "%c%s%c%s", (int)strlen(socks5_username), socks5_username, (int)strlen(socks5_password), socks5_password); data/httping-2.5/utils.c:32:18: [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). int split_len = strlen(split); data/httping-2.5/utils.c:66:21: [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). int len_to = *to ? strlen(*to) : 0; ANALYSIS SUMMARY: Hits = 100 Lines analyzed = 5657 in approximately 0.20 seconds (28138 lines/second) Physical Source Lines of Code (SLOC) = 4417 Hits@level = [0] 135 [1] 20 [2] 63 [3] 7 [4] 10 [5] 0 Hits@level+ = [0+] 235 [1+] 100 [2+] 80 [3+] 17 [4+] 10 [5+] 0 Hits/KSLOC@level+ = [0+] 53.2035 [1+] 22.6398 [2+] 18.1118 [3+] 3.84877 [4+] 2.26398 [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.