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/macfanctld-0.6+repack1/config.c
Examining data/macfanctld-0.6+repack1/config.h
Examining data/macfanctld-0.6+repack1/control.c
Examining data/macfanctld-0.6+repack1/control.h
Examining data/macfanctld-0.6+repack1/macfanctl.c

FINAL RESULTS:

data/macfanctld-0.6+repack1/control.c:118:5:  [4] (buffer) sprintf:
  Does not check for buffer overflows (CWE-120). Use sprintf_s, snprintf, or
  vsnprintf.
				sprintf(name_path, "%s/%s/device/name", HWMON_DIR, dir_entry->d_name);
data/macfanctld-0.6+repack1/control.c:166:2:  [4] (buffer) sprintf:
  Does not check for buffer overflows (CWE-120). Use sprintf_s, snprintf, or
  vsnprintf.
	sprintf(fan1_min, "%s/fan1_min", base_path);
data/macfanctld-0.6+repack1/control.c:167:2:  [4] (buffer) sprintf:
  Does not check for buffer overflows (CWE-120). Use sprintf_s, snprintf, or
  vsnprintf.
	sprintf(fan2_min, "%s/fan2_min", base_path);
data/macfanctld-0.6+repack1/control.c:168:2:  [4] (buffer) sprintf:
  Does not check for buffer overflows (CWE-120). Use sprintf_s, snprintf, or
  vsnprintf.
	sprintf(fan1_man, "%s/fan1_manual", base_path);
data/macfanctld-0.6+repack1/control.c:169:2:  [4] (buffer) sprintf:
  Does not check for buffer overflows (CWE-120). Use sprintf_s, snprintf, or
  vsnprintf.
	sprintf(fan2_man, "%s/fan2_manual", base_path);
data/macfanctld-0.6+repack1/control.c:398:3:  [4] (buffer) sprintf:
  Does not check for buffer overflows (CWE-120). Use sprintf_s, snprintf, or
  vsnprintf.
		sprintf(fname, "%s/temp%d_input", base_path, count + 1);
data/macfanctld-0.6+repack1/control.c:434:4:  [4] (buffer) sprintf:
  Does not check for buffer overflows (CWE-120). Use sprintf_s, snprintf, or
  vsnprintf.
			sprintf(sensors[i].fname, "%s/temp%d_input", base_path, sensors[i].id);
data/macfanctld-0.6+repack1/control.c:446:4:  [4] (buffer) sprintf:
  Does not check for buffer overflows (CWE-120). Use sprintf_s, snprintf, or
  vsnprintf.
			sprintf(fname, "%s/temp%d_label", base_path, sensors[i].id);
data/macfanctld-0.6+repack1/control.c:141:20:  [3] (buffer) realpath:
  This function does not protect against buffer overflows, and some
  implementations can overflow internally (CWE-120/CWE-785!). Ensure that the
  destination buffer is at least of size MAXPATHLEN, andto protect against
  implementation problems, the input argument should also be checked to
  ensure it is no larger than MAXPATHLEN.
								dev_path = realpath(name_path, NULL);
data/macfanctld-0.6+repack1/config.c:93:9:  [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).
	return atoi(buf);
data/macfanctld-0.6+repack1/config.c:105:3:  [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 buf[64];
data/macfanctld-0.6+repack1/config.c:157:3:  [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 buf[256];
data/macfanctld-0.6+repack1/config.c:230:7:  [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).
	fp = fopen(name, "r");
data/macfanctld-0.6+repack1/control.c:65:2:  [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 name[SENSKEY_MAXLEN];
data/macfanctld-0.6+repack1/control.c:66:2:  [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 fname[PATH_MAX];
data/macfanctld-0.6+repack1/control.c:72:1:  [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 base_path[PATH_MAX];
data/macfanctld-0.6+repack1/control.c:73:1:  [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 fan1_min[PATH_MAX];
data/macfanctld-0.6+repack1/control.c:74:1:  [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 fan2_min[PATH_MAX];
data/macfanctld-0.6+repack1/control.c:75:1:  [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 fan1_man[PATH_MAX];
data/macfanctld-0.6+repack1/control.c:76:1:  [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 fan2_man[PATH_MAX];
data/macfanctld-0.6+repack1/control.c:115:5:  [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 name_path[PATH_MAX];
data/macfanctld-0.6+repack1/control.c:120:15:  [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).
				fd_name = open(name_path, O_RDONLY);
data/macfanctld-0.6+repack1/control.c:124:6:  [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[sizeof(APPLESMC_ID)];
data/macfanctld-0.6+repack1/control.c:185:13:  [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).
			int fd = open(sensors[i].fname, O_RDONLY);
data/macfanctld-0.6+repack1/control.c:193:5:  [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 val_buf[16];
data/macfanctld-0.6+repack1/control.c:201:32:  [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).
					sensors[i].value = (float)atoi(val_buf) / 1000.0;
data/macfanctld-0.6+repack1/control.c:281:2:  [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 buf[16];
data/macfanctld-0.6+repack1/control.c:285:11:  [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).
	int fd = open(fan1_min, O_WRONLY);
data/macfanctld-0.6+repack1/control.c:292:3:  [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(buf, "%d", fan_speed);
data/macfanctld-0.6+repack1/control.c:299:7:  [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).
	fd = open(fan1_man, O_WRONLY);
data/macfanctld-0.6+repack1/control.c:315:8:  [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).
		fd = open(fan2_min, O_WRONLY);
data/macfanctld-0.6+repack1/control.c:322:4:  [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, "%d", fan_speed);
data/macfanctld-0.6+repack1/control.c:329:8:  [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).
		fd = open(fan2_man, O_WRONLY);
data/macfanctld-0.6+repack1/control.c:395:3:  [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 fname[512];
data/macfanctld-0.6+repack1/control.c:429:4:  [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 fname[512];
data/macfanctld-0.6+repack1/control.c:450:15:  [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).
			FILE *fp = fopen(fname, "r");
data/macfanctld-0.6+repack1/control.c:457:5:  [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 key_buf[SENSKEY_MAXLEN];
data/macfanctld-0.6+repack1/macfanctl.c:97:16:  [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).
	int lock_fd = open(PID_FILE, O_RDWR | O_CREAT, 0640);
data/macfanctld-0.6+repack1/macfanctl.c:108:2:  [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 str[32];
data/macfanctld-0.6+repack1/macfanctl.c:109:2:  [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(str, "%d\n", getpid());
data/macfanctld-0.6+repack1/config.c:50:5:  [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(strlen(buf) < 1)
data/macfanctld-0.6+repack1/control.c:126:12:  [1] (buffer) read:
  Check buffer boundaries if used in a loop including recursive loops
  (CWE-120, CWE-20).
					ret = read(fd_name, name, sizeof(APPLESMC_ID) - 1);
data/macfanctld-0.6+repack1/control.c:145:10:  [1] (buffer) strncpy:
  Easily used incorrectly; doesn't always \0-terminate or check for invalid
  pointers [MS-banned] (CWE-120).
									strncpy(base_path, dev_path, sizeof(base_path) - 1);
data/macfanctld-0.6+repack1/control.c:194:13:  [1] (buffer) read:
  Check buffer boundaries if used in a loop including recursive loops
  (CWE-120, CWE-20).
				int n = read(fd, val_buf, sizeof(val_buf));
data/macfanctld-0.6+repack1/control.c:293:18:  [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).
		write(fd, buf, strlen(buf));
data/macfanctld-0.6+repack1/control.c:306:3:  [1] (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). Risk is low because the source is a constant character.
		strcpy(buf, "0");
data/macfanctld-0.6+repack1/control.c:307:18:  [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).
		write(fd, buf, strlen(buf));
data/macfanctld-0.6+repack1/control.c:323:19:  [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).
			write(fd, buf, strlen(buf));
data/macfanctld-0.6+repack1/control.c:336:4:  [1] (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). Risk is low because the source is a constant character.
			strcpy(buf, "0");
data/macfanctld-0.6+repack1/control.c:337:19:  [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).
			write(fd, buf, strlen(buf));
data/macfanctld-0.6+repack1/control.c:472:6:  [1] (buffer) strncpy:
  Easily used incorrectly; doesn't always \0-terminate or check for invalid
  pointers [MS-banned] (CWE-120).
					strncpy(sensors[i].name, key_buf, SENSKEY_MAXLEN);
data/macfanctld-0.6+repack1/macfanctl.c:86:2:  [1] (access) umask:
  Ensure that umask is given most restrictive possible setting (e.g., 066 or
  077) (CWE-732).
	umask(0);
data/macfanctld-0.6+repack1/macfanctl.c:88:2:  [1] (access) umask:
  Ensure that umask is given most restrictive possible setting (e.g., 066 or
  077) (CWE-732).
	umask(022); // set createfile permissions
data/macfanctld-0.6+repack1/macfanctl.c:110:22:  [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).
	write(lock_fd, str, strlen(str));

ANALYSIS SUMMARY:

Hits = 54
Lines analyzed = 1119 in approximately 0.04 seconds (28858 lines/second)
Physical Source Lines of Code (SLOC) = 759
Hits@level = [0]  48 [1]  14 [2]  31 [3]   1 [4]   8 [5]   0
Hits@level+ = [0+] 102 [1+]  54 [2+]  40 [3+]   9 [4+]   8 [5+]   0
Hits/KSLOC@level+ = [0+] 134.387 [1+] 71.1462 [2+] 52.7009 [3+] 11.8577 [4+] 10.5402 [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.