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/pixz-1.0.7/src/common.c
Examining data/pixz-1.0.7/src/cpu.c
Examining data/pixz-1.0.7/src/endian.c
Examining data/pixz-1.0.7/src/list.c
Examining data/pixz-1.0.7/src/pixz.c
Examining data/pixz-1.0.7/src/pixz.h
Examining data/pixz-1.0.7/src/read.c
Examining data/pixz-1.0.7/src/write.c

FINAL RESULTS:

data/pixz-1.0.7/src/common.c:17:5:  [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.
    vfprintf(stderr, fmt, args);
data/pixz-1.0.7/src/pixz.c:206:5:  [4] (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).
    strcpy(r + li - l1, suf2);
data/pixz-1.0.7/src/pixz.h:31:29:  [4] (format) fprintf:
  If format strings can be influenced by an attacker, they can be exploited
  (CWE-134). Use a constant for the format specification.
    #define debug(str, ...) fprintf(stderr, str "\n", ##__VA_ARGS__)
data/pixz-1.0.7/src/pixz.c:69:18:  [3] (buffer) getopt:
  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 ((ch = getopt(argc, argv, "dcxli:o:tkvhp:0123456789f:q:e")) != -1) {
data/pixz-1.0.7/src/common.c:31:12:  [2] (buffer) memcpy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
    return memcpy(r, s, len + 1); 
data/pixz-1.0.7/src/endian.c:49:5:  [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(d, &tmp, sizeof(tmp));
data/pixz-1.0.7/src/pixz.c:132:30:  [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).
    if (ipath && !(gInFile = fopen(ipath, "r")))
data/pixz-1.0.7/src/pixz.c:139:26:  [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).
        if (!(gOutFile = fopen(opath, "w")))
data/pixz-1.0.7/src/pixz.c:150:26:  [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).
        if ((output_fd = open(opath, O_CREAT | O_WRONLY, input_stat.st_mode)) == -1)
data/pixz-1.0.7/src/pixz.c:205:5:  [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(r, in, li - l1);
data/pixz-1.0.7/src/read.c:472:2:  [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 zeros[4] = "\0\0\0\0";
data/pixz-1.0.7/src/write.c:318:9:  [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(output, input, size);
data/pixz-1.0.7/src/write.c:504:9:  [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(gFileIndexBuf + gFileIndexBufPos, buf + bufpos, len);
data/pixz-1.0.7/src/common.c:27:18:  [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).
    size_t len = strlen(s);
data/pixz-1.0.7/src/common.c:35:16:  [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).
    size_t i = strlen(name);
data/pixz-1.0.7/src/common.c:98:13:  [1] (buffer) fgetc:
  Check buffer boundaries if used in a loop including recursive loops
  (CWE-120, CWE-20).
    int b = fgetc(gInFile);
data/pixz-1.0.7/src/common.c:168:19:  [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).
        f->name = strlen(name) ? xstrdup(name) : NULL;
data/pixz-1.0.7/src/pixz.c:195:17:  [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).
    size_t bl = strlen(big), sl = strlen(small);
data/pixz-1.0.7/src/pixz.c:195:35:  [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).
    size_t bl = strlen(big), sl = strlen(small);
data/pixz-1.0.7/src/pixz.c:203:17:  [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).
    size_t li = strlen(in), l1 = strlen(suf1), l2 = strlen(suf2);
data/pixz-1.0.7/src/pixz.c:203:34:  [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).
    size_t li = strlen(in), l1 = strlen(suf1), l2 = strlen(suf2);
data/pixz-1.0.7/src/pixz.c:203:53:  [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).
    size_t li = strlen(in), l1 = strlen(suf1), l2 = strlen(suf2);
data/pixz-1.0.7/src/write.c:484:22:  [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).
        size_t len = strlen(name);

ANALYSIS SUMMARY:

Hits = 23
Lines analyzed = 2255 in approximately 0.33 seconds (6804 lines/second)
Physical Source Lines of Code (SLOC) = 1801
Hits@level = [0]  18 [1]  10 [2]   9 [3]   1 [4]   3 [5]   0
Hits@level+ = [0+]  41 [1+]  23 [2+]  13 [3+]   4 [4+]   3 [5+]   0
Hits/KSLOC@level+ = [0+] 22.7651 [1+] 12.7707 [2+] 7.21821 [3+] 2.22099 [4+] 1.66574 [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.