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/daemonlogger-1.2.1/daemonlogger.c

FINAL RESULTS:

data/daemonlogger-1.2.1/daemonlogger.c:268:5:  [4] (format) vsnprintf:
  If format strings can be influenced by an attacker, they can be exploited,
  and note that sprintf variations do not always \0-terminate (CWE-134). Use
  a constant for the format specification.
    vsnprintf(buf, STDBUF, format, ap);
data/daemonlogger-1.2.1/daemonlogger.c:291:5:  [4] (format) vsnprintf:
  If format strings can be influenced by an attacker, they can be exploited,
  and note that sprintf variations do not always \0-terminate (CWE-134). Use
  a constant for the format specification.
    vsnprintf(buf, STDBUF, format, ap);
data/daemonlogger-1.2.1/daemonlogger.c:314:32:  [4] (race) access:
  This usually indicates a security flaw. If an attacker can change anything
  along the path between the call to access() and the file's actual use
  (e.g., by moving files), the attacker can exploit the race condition
  (CWE-362/CWE-367!). Set up the correct permissions (e.g., using setuid())
  and try to open the file directly.
    if(!S_ISDIR(st.st_mode) || access(path, W_OK) == -1)
data/daemonlogger-1.2.1/daemonlogger.c:776:8:  [3] (misc) chroot:
  chroot can be very helpful, but is hard to use correctly (CWE-250, CWE-22).
  Make sure the program immediately chdir("/"), closes file descriptors, and
  drops root privileges, and that all necessary files (and no more!) are in
  the new root.
    if(chroot(absdir) < 0)
data/daemonlogger-1.2.1/daemonlogger.c:1154:17:  [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, 
data/daemonlogger-1.2.1/daemonlogger.c:231:8:  [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 logdir[STDBUF];
data/daemonlogger-1.2.1/daemonlogger.c:232:8:  [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 testpath[STDBUF];
data/daemonlogger-1.2.1/daemonlogger.c:264:5:  [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[STDBUF+1];
data/daemonlogger-1.2.1/daemonlogger.c:287:5:  [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[STDBUF+1];
data/daemonlogger-1.2.1/daemonlogger.c:323:5:  [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 filepath[STDBUF];
data/daemonlogger-1.2.1/daemonlogger.c:326:5:  [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 pid_buffer[12];
data/daemonlogger-1.2.1/daemonlogger.c:350:14:  [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((fd = open(filepath, O_CREAT | O_WRONLY,
data/daemonlogger-1.2.1/daemonlogger.c:401:15:  [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 ((fd = open("/dev/null", O_RDWR)) >= 0)
data/daemonlogger-1.2.1/daemonlogger.c:526:5:  [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 fpath[STDBUF+1];
data/daemonlogger-1.2.1/daemonlogger.c:803:5:  [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 errorbuf[PCAP_ERRBUF_SIZE];       /* buffer to put error strings in */
data/daemonlogger-1.2.1/daemonlogger.c:925:14:  [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((fd = open(filename, O_RDONLY)) < 0)
data/daemonlogger-1.2.1/daemonlogger.c:1160:25:  [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).
                count = atoi(optarg);
data/daemonlogger-1.2.1/daemonlogger.c:1187:28:  [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).
                maxfiles = atoi(optarg);
data/daemonlogger-1.2.1/daemonlogger.c:1191:26:  [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).
                maxpct = atoi(optarg);
data/daemonlogger-1.2.1/daemonlogger.c:1259:27:  [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).
                snaplen = atoi(optarg);
data/daemonlogger-1.2.1/daemonlogger.c:1264:33:  [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).
                     rollover = atoi(optarg); 
data/daemonlogger-1.2.1/daemonlogger.c:378:27:  [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).
    write(fd, pid_buffer, strlen(pid_buffer));
data/daemonlogger-1.2.1/daemonlogger.c:773:14:  [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).
    abslen = strlen(absdir);
data/daemonlogger-1.2.1/daemonlogger.c:935:21:  [1] (buffer) read:
  Check buffer boundaries if used in a loop including recursive loops
  (CWE-120, CWE-20).
    if((readbytes = read(fd, filebuf, (int) buf.st_size)) < 0)
data/daemonlogger-1.2.1/daemonlogger.c:1062:16:  [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).
        len += strlen(*p++) + 1;
data/daemonlogger-1.2.1/daemonlogger.c:1218:40:  [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(isdigit((int)optarg[strlen(optarg)-1]))
data/daemonlogger-1.2.1/daemonlogger.c:1262:40:  [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(isdigit((int)optarg[strlen(optarg)-1]))

ANALYSIS SUMMARY:

Hits = 27
Lines analyzed = 1452 in approximately 0.07 seconds (21590 lines/second)
Physical Source Lines of Code (SLOC) = 1172
Hits@level = [0]  60 [1]   6 [2]  16 [3]   2 [4]   3 [5]   0
Hits@level+ = [0+]  87 [1+]  27 [2+]  21 [3+]   5 [4+]   3 [5+]   0
Hits/KSLOC@level+ = [0+] 74.2321 [1+] 23.0375 [2+] 17.9181 [3+] 4.26621 [4+] 2.55973 [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.