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/nomarch-1.4/main.c
Examining data/nomarch-1.4/readlzw.c
Examining data/nomarch-1.4/readlzw.h
Examining data/nomarch-1.4/readhuff.h
Examining data/nomarch-1.4/readhuff.c
Examining data/nomarch-1.4/readrle.h
Examining data/nomarch-1.4/readrle.c

FINAL RESULTS:

data/nomarch-1.4/main.c:663:10:  [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.
  switch(getopt(argc,argv,"hlptUv"))
data/nomarch-1.4/main.c:52:3:  [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 name[13];
data/nomarch-1.4/main.c:77:10:  [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[4+2+2+2+4];	/* used to read size1/date/time/crc/size2 */
data/nomarch-1.4/main.c:245:8:  [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.
static char buf[128];
data/nomarch-1.4/main.c:255:1:  [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(buf,"%4d-%02d-%02d %02d:%02d",year,month,day,hour,min);
data/nomarch-1.4/main.c:373:1:  [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 *methodstr[NUM_METHODSTR]=
data/nomarch-1.4/main.c:390:8:  [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((in=fopen(archive_filename,"rb"))==NULL)
data/nomarch-1.4/main.c:448:8:  [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((in=fopen(archive_filename,"rb"))==NULL)
data/nomarch-1.4/main.c:571:43:  [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(!opt_print && !test_only && (out=fopen(hdr.name,"wb"))==NULL)
data/nomarch-1.4/main.c:83:4:  [1] (buffer) fgetc:
  Check buffer boundaries if used in a loop including recursive loops
  (CWE-120, CWE-20).
if(fgetc(in)!=0x1a)
data/nomarch-1.4/main.c:86:7:  [1] (buffer) fgetc:
  Check buffer boundaries if used in a loop including recursive loops
  (CWE-120, CWE-20).
if((c=fgetc(in))==EOF)
data/nomarch-1.4/main.c:120:11:  [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).
for(f=0;f<strlen(hdrp->name);f++)
data/nomarch-1.4/main.c:164:9:  [1] (buffer) fgetc:
  Check buffer boundaries if used in a loop including recursive loops
  (CWE-120, CWE-20).
  if((c=fgetc(in))==EOF)
data/nomarch-1.4/main.c:208:6:  [1] (buffer) fgetc:
  Check buffer boundaries if used in a loop including recursive loops
  (CWE-120, CWE-20).
  if(fgetc(in)==EOF) return(0);
data/nomarch-1.4/main.c:303:31:  [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(tmp==NULL) tmp=match+strlen(match);
data/nomarch-1.4/main.c:310:14:  [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).
        ptr+=strlen(ptr);	/* just `*', so skip to end */
data/nomarch-1.4/main.c:313:24:  [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).
        if(tmp+1-match>strlen(ptr))

ANALYSIS SUMMARY:

Hits = 17
Lines analyzed = 1380 in approximately 0.06 seconds (23520 lines/second)
Physical Source Lines of Code (SLOC) = 912
Hits@level = [0]  32 [1]   8 [2]   8 [3]   1 [4]   0 [5]   0
Hits@level+ = [0+]  49 [1+]  17 [2+]   9 [3+]   1 [4+]   0 [5+]   0
Hits/KSLOC@level+ = [0+] 53.7281 [1+] 18.6404 [2+] 9.86842 [3+] 1.09649 [4+]   0 [5+]   0
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.