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/dhcping-1.2/dhcp_options.h
Examining data/dhcping-1.2/dhcping.c

FINAL RESULTS:

data/dhcping-1.2/dhcping.c:84:18:  [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,"c:g:h:iqrs:t:vV"))>0) {
data/dhcping-1.2/dhcping.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(pktbuf+offset,msgbuf,size);
data/dhcping-1.2/dhcping.c:69:10:  [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 serveridentifier[4];
data/dhcping-1.2/dhcping.c:93:20:  [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).
	case 't': maxwait=atoi(optarg);break;
data/dhcping-1.2/dhcping.c:189:5:  [2] (buffer) bcopy:
  Does not check for buffer overflows when copying to destination (CWE-120).
  Make sure destination can always hold the source data.
    bcopy(hostent->h_addr,&dhcp_to.sin_addr.s_addr,hostent->h_length);
data/dhcping-1.2/dhcping.c:239:14:  [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 msgbuf[BUF_SIZ];
data/dhcping-1.2/dhcping.c:240:14:  [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 pktbuf[BUF_SIZ];
data/dhcping-1.2/dhcping.c:256:5:  [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(msgbuf,"\1\1%c%c",hwcount,0);
data/dhcping-1.2/dhcping.c:264:5:  [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(msgbuf,&l,4);
data/dhcping-1.2/dhcping.c:276:5:  [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(msgbuf,"%c%c%c%c",ip[0],ip[1],ip[2],ip[3]);
data/dhcping-1.2/dhcping.c:288:5:  [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(msgbuf,"%c%c%c%c",gw[0],gw[1],gw[2],gw[3]);
data/dhcping-1.2/dhcping.c:292:5:  [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(msgbuf,"%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c",
data/dhcping-1.2/dhcping.c:308:2:  [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(msgbuf,"%c%c%c%c",99,130,83,99);
data/dhcping-1.2/dhcping.c:312:2:  [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(msgbuf,"%c%c%c",53,1,type);
data/dhcping-1.2/dhcping.c:319:3:  [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(msgbuf,"%c%c%c%c%c%c",50,4,ip50[0],ip50[1],ip50[2],ip50[3]);
data/dhcping-1.2/dhcping.c:325:3:  [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(msgbuf,"%c%c%c%c%c%c",54,4,
data/dhcping-1.2/dhcping.c:339:6:  [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(msgbuf,"%c%c%c",55,1,1);
data/dhcping-1.2/dhcping.c:344:2:  [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(msgbuf,"%c",255);
data/dhcping-1.2/dhcping.c:357:14:  [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 msgbuf[BUF_SIZ];
data/dhcping-1.2/dhcping.c:462:6:  [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(serveridentifier,buffer+j+2,4);
data/dhcping-1.2/dhcping.c:109:12:  [1] (buffer) read:
  Check buffer boundaries if used in a loop including recursive loops
  (CWE-120, CWE-20).
    fd_set read;
data/dhcping-1.2/dhcping.c:140:11:  [1] (buffer) read:
  Check buffer boundaries if used in a loop including recursive loops
  (CWE-120, CWE-20).
	FD_ZERO(&read);
data/dhcping-1.2/dhcping.c:141:22:  [1] (buffer) read:
  Check buffer boundaries if used in a loop including recursive loops
  (CWE-120, CWE-20).
	FD_SET(dhcp_socket,&read);
data/dhcping-1.2/dhcping.c:144:27:  [1] (buffer) read:
  Check buffer boundaries if used in a loop including recursive loops
  (CWE-120, CWE-20).
	if(select(dhcp_socket+1,&read,NULL,NULL,&timeout)<0) {
data/dhcping-1.2/dhcping.c:148:28:  [1] (buffer) read:
  Check buffer boundaries if used in a loop including recursive loops
  (CWE-120, CWE-20).
	if (FD_ISSET(dhcp_socket,&read)) {

ANALYSIS SUMMARY:

Hits = 25
Lines analyzed = 762 in approximately 0.06 seconds (12764 lines/second)
Physical Source Lines of Code (SLOC) = 608
Hits@level = [0]  37 [1]   5 [2]  19 [3]   1 [4]   0 [5]   0
Hits@level+ = [0+]  62 [1+]  25 [2+]  20 [3+]   1 [4+]   0 [5+]   0
Hits/KSLOC@level+ = [0+] 101.974 [1+] 41.1184 [2+] 32.8947 [3+] 1.64474 [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.