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/rdiff-backup-2.0.5/src/_librsyncmodule.c
Examining data/rdiff-backup-2.0.5/src/cmodule.c

FINAL RESULTS:

data/rdiff-backup-2.0.5/src/_librsyncmodule.c:35:3:  [4] (buffer) sprintf:
  Does not check for buffer overflows (CWE-120). Use sprintf_s, snprintf, or
  vsnprintf.
  sprintf(error_string, "librsync error %d while in %s", result, location);
data/rdiff-backup-2.0.5/src/_librsyncmodule.c:34:3:  [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 error_string[200];
data/rdiff-backup-2.0.5/src/_librsyncmodule.c:87:3:  [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 *inbuf, outbuf[RS_JOB_BLOCKSIZE];
data/rdiff-backup-2.0.5/src/_librsyncmodule.c:203:3:  [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 *sig_string, outbuf[RS_JOB_BLOCKSIZE];
data/rdiff-backup-2.0.5/src/_librsyncmodule.c:256:3:  [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 *inbuf, outbuf[RS_JOB_BLOCKSIZE];
data/rdiff-backup-2.0.5/src/_librsyncmodule.c:428:3:  [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 *inbuf, outbuf[RS_JOB_BLOCKSIZE];

ANALYSIS SUMMARY:

Hits = 6
Lines analyzed = 774 in approximately 0.03 seconds (23395 lines/second)
Physical Source Lines of Code (SLOC) = 575
Hits@level = [0]   0 [1]   0 [2]   5 [3]   0 [4]   1 [5]   0
Hits@level+ = [0+]   6 [1+]   6 [2+]   6 [3+]   1 [4+]   1 [5+]   0
Hits/KSLOC@level+ = [0+] 10.4348 [1+] 10.4348 [2+] 10.4348 [3+] 1.73913 [4+] 1.73913 [5+]   0
Dot directories skipped = 2 (--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.