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/jsmn-1.1.0/example/jsondump.c Examining data/jsmn-1.1.0/example/simple.c Examining data/jsmn-1.1.0/jsmn.h Examining data/jsmn-1.1.0/test/test.h Examining data/jsmn-1.1.0/test/tests.c Examining data/jsmn-1.1.0/test/testutil.h FINAL RESULTS: data/jsmn-1.1.0/example/jsondump.c:77:3: [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 buf[BUFSIZ]; data/jsmn-1.1.0/test/tests.c:161:5: [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(toklarge, toksmall, sizeof(toksmall)); data/jsmn-1.1.0/example/jsondump.c:113:5: [1] (buffer) strncpy: Easily used incorrectly; doesn't always \0-terminate or check for invalid pointers [MS-banned] (CWE-120). strncpy(js + jslen, buf, r); data/jsmn-1.1.0/example/simple.c:16:40: [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 (tok->type == JSMN_STRING && (int)strlen(s) == tok->end - tok->start && data/jsmn-1.1.0/example/simple.c:30:35: [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). r = jsmn_parse(&p, JSON_STRING, strlen(JSON_STRING), t, data/jsmn-1.1.0/test/tests.c:107:20: [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 (i = 1; i <= strlen(js); i++) { data/jsmn-1.1.0/test/tests.c:109:14: [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). if (i == strlen(js)) { data/jsmn-1.1.0/test/tests.c:130:20: [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 (i = 1; i <= strlen(js); i++) { data/jsmn-1.1.0/test/tests.c:132:14: [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). if (i == strlen(js)) { data/jsmn-1.1.0/test/tests.c:158:28: [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). r = jsmn_parse(&p, js, strlen(js), toksmall, i); data/jsmn-1.1.0/test/tests.c:163:28: [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). r = jsmn_parse(&p, js, strlen(js), toklarge, 10); data/jsmn-1.1.0/test/tests.c:182:26: [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). r = jsmn_parse(&p, js, strlen(js), tok, 10); data/jsmn-1.1.0/test/tests.c:208:26: [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). r = jsmn_parse(&p, js, strlen(js), tokens, 128); data/jsmn-1.1.0/test/tests.c:242:28: [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). check(jsmn_parse(&p, js, strlen(js), NULL, 0) == 1); data/jsmn-1.1.0/test/tests.c:246:28: [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). check(jsmn_parse(&p, js, strlen(js), NULL, 0) == 1); data/jsmn-1.1.0/test/tests.c:250:28: [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). check(jsmn_parse(&p, js, strlen(js), NULL, 0) == 2); data/jsmn-1.1.0/test/tests.c:254:28: [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). check(jsmn_parse(&p, js, strlen(js), NULL, 0) == 3); data/jsmn-1.1.0/test/tests.c:258:28: [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). check(jsmn_parse(&p, js, strlen(js), NULL, 0) == 3); data/jsmn-1.1.0/test/tests.c:262:28: [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). check(jsmn_parse(&p, js, strlen(js), NULL, 0) == 7); data/jsmn-1.1.0/test/tests.c:266:28: [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). check(jsmn_parse(&p, js, strlen(js), NULL, 0) == 5); data/jsmn-1.1.0/test/tests.c:270:28: [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). check(jsmn_parse(&p, js, strlen(js), NULL, 0) == 5); data/jsmn-1.1.0/test/tests.c:274:28: [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). check(jsmn_parse(&p, js, strlen(js), NULL, 0) == 4); data/jsmn-1.1.0/test/tests.c:278:28: [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). check(jsmn_parse(&p, js, strlen(js), NULL, 0) == 7); data/jsmn-1.1.0/test/testutil.h:52:13: [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). if (strlen(value) != (unsigned long)(t[i].end - t[i].start) || data/jsmn-1.1.0/test/testutil.h:81:25: [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). r = jsmn_parse(&p, s, strlen(s), t, numtok); ANALYSIS SUMMARY: Hits = 25 Lines analyzed = 1165 in approximately 0.14 seconds (8527 lines/second) Physical Source Lines of Code (SLOC) = 929 Hits@level = [0] 31 [1] 23 [2] 2 [3] 0 [4] 0 [5] 0 Hits@level+ = [0+] 56 [1+] 25 [2+] 2 [3+] 0 [4+] 0 [5+] 0 Hits/KSLOC@level+ = [0+] 60.2799 [1+] 26.9107 [2+] 2.15285 [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.