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/yascreen-1.85/yascreen.c
Examining data/yascreen-1.85/yascreen.h
Examining data/yascreen-1.85/yastest.c

FINAL RESULTS:

data/yascreen-1.85/yascreen.c:244:83:  [4] (format) printf:
  If format strings can be influenced by an attacker, they can be exploited
  (CWE-134). Use a constant for the format specification.
static inline void outf(yascreen *s,const char *format,...) __attribute__((format(printf,2,3))); // {{{
data/yascreen-1.85/yascreen.c:743:4:  [4] (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).
			strcpy(ts,(s->mem[s->cursorx+s->cursory*s->sx].style&YAS_STORAGE)?s->mem[s->cursorx+s->cursory*s->sx].p:s->mem[s->cursorx+s->cursory*s->sx].d);
data/yascreen-1.85/yascreen.c:744:4:  [4] (buffer) strcat:
  Does not check for buffer overflows when concatenating to destination
  [MS-banned] (CWE-120). Consider using strcat_s, strncat, strlcat, or
  snprintf (warning: strncat is easily misused).
			strcat(ts,str);
data/yascreen-1.85/yascreen.h:349:113:  [4] (format) printf:
  If format strings can be influenced by an attacker, they can be exploited
  (CWE-134). Use a constant for the format specification.
inline int yascreen_printxy(yascreen *s,int x,int y,uint32_t attr,const char *format,...) __attribute__((format(printf,5,6)));
data/yascreen-1.85/yascreen.h:352:114:  [4] (format) printf:
  If format strings can be influenced by an attacker, they can be exploited
  (CWE-134). Use a constant for the format specification.
inline int yascreen_printxyu(yascreen *s,int x,int y,uint32_t attr,const char *format,...) __attribute__((format(printf,5,6)));
data/yascreen-1.85/yascreen.h:380:85:  [4] (format) printf:
  If format strings can be influenced by an attacker, they can be exploited
  (CWE-134). Use a constant for the format specification.
inline int yascreen_print(yascreen *s,const char *format,...) __attribute__((format(printf,2,3)));
data/yascreen-1.85/yascreen.c:88:3:  [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 d[PSIZE];
data/yascreen-1.85/yascreen.c:139:11:  [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 ansibuf[20]; // buffer for escape sequence parsing
data/yascreen-1.85/yascreen.c:141:11:  [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 sosnbuf[20]; // buffer for telnet SOSN options parsing
data/yascreen-1.85/yascreen.c:143:11:  [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 utf[3]; // buffer for utf8 sequence parsing; last byte is not put here, its never zero terminated
data/yascreen-1.85/yascreen.c:183:4:  [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(s->outb+s->outp,buf,len);
data/yascreen-1.85/yascreen.c:189:4:  [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(s->outb+s->outp,buf,brem);
data/yascreen-1.85/yascreen.c:776:2:  [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 utf[5]; // 4 byte sequence + 1 for terminating 0
data/yascreen-1.85/yascreen.c:229:6:  [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(str);
data/yascreen-1.85/yascreen.c:309:15:  [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).
			sscanf(rev+strlen("$Revision: "),"%d.%d",&vermaj,&vermin);
data/yascreen-1.85/yascreen.c:312:26:  [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).
			memmove(myver,myver+1,strlen(myver+1)+1);
data/yascreen-1.85/yascreen.c:383:3:  [1] (buffer) strncpy:
  Easily used incorrectly; doesn't always \0-terminate or check for invalid
  pointers [MS-banned] (CWE-120). Risk is low because the source is a
  constant character.
		strncpy(s->mem[i].d," ",sizeof s->mem[i].d);
data/yascreen-1.85/yascreen.c:632:5:  [1] (buffer) strncpy:
  Easily used incorrectly; doesn't always \0-terminate or check for invalid
  pointers [MS-banned] (CWE-120).
				strncpy(s->scr[j*s->sx+i].d,s->mem[j*s->sx+i].d,sizeof s->scr[j*s->sx+i].d);
data/yascreen-1.85/yascreen.c:674:7:  [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(str)<PSIZE) {
data/yascreen-1.85/yascreen.c:675:4:  [1] (buffer) strncpy:
  Easily used incorrectly; doesn't always \0-terminate or check for invalid
  pointers [MS-banned] (CWE-120).
			strncpy(s->mem[s->cursorx+s->cursory*s->sx].d,str,sizeof s->mem[s->cursorx+s->cursory*s->sx].d);
data/yascreen-1.85/yascreen.c:712:4:  [1] (buffer) strncpy:
  Easily used incorrectly; doesn't always \0-terminate or check for invalid
  pointers [MS-banned] (CWE-120). Risk is low because the source is a
  constant character.
			strncpy(s->mem[x+s->cursory*s->sx].d,"<",sizeof s->mem[x+s->cursory*s->sx].d);
data/yascreen-1.85/yascreen.c:731:8:  [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).
		clen=strlen((s->mem[s->cursorx+s->cursory*s->sx].style&YAS_STORAGE)?s->mem[s->cursorx+s->cursory*s->sx].p:s->mem[s->cursorx+s->cursory*s->sx].d);
data/yascreen-1.85/yascreen.c:732:12:  [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 (clen+strlen(str)<PSIZE) { // new fits, so current should fit too and don't have YAS_STORAGE
data/yascreen-1.85/yascreen.c:733:4:  [1] (buffer) strncpy:
  Easily used incorrectly; doesn't always \0-terminate or check for invalid
  pointers [MS-banned] (CWE-120).
			strncpy(s->mem[s->cursorx+s->cursory*s->sx].d+clen,str,sizeof s->mem[s->cursorx+s->cursory*s->sx].d-clen);
data/yascreen-1.85/yascreen.c:736:22:  [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).
			size_t tslen=clen+strlen(str)+1;
data/yascreen-1.85/yascreen.c:764:4:  [1] (buffer) strncpy:
  Easily used incorrectly; doesn't always \0-terminate or check for invalid
  pointers [MS-banned] (CWE-120). Risk is low because the source is a
  constant character.
			strncpy(s->mem[x+s->cursory*s->sx].d,">",sizeof s->mem[x+s->cursory*s->sx].d);
data/yascreen-1.85/yascreen.c:793:13:  [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 (i=0;i<strlen(str);i++) {
data/yascreen-1.85/yascreen.c:1192:60:  [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).
			printf("x: %3d y: %3d len: %3zu attr: %08x s: %s\n",i,j,strlen((s->mem[i+s->sx*j].style&YAS_STORAGE)?s->mem[i+s->sx*j].p:s->mem[i+s->sx*j].d),s->mem[i+s->sx*j].style,(s->mem[i+s->sx*j].style&YAS_STORAGE)?s->mem[i+s->sx*j].p:s->mem[i+s->sx*j].d);
data/yascreen-1.85/yascreen.c:1984:46:  [1] (buffer) read:
  Check buffer boundaries if used in a loop including recursive loops
  (CWE-120, CWE-20).
			if (FD_ISSET(STDOUT_FILENO,&r)&&sizeof c==read(STDOUT_FILENO,&c,sizeof c)) {
data/yascreen-1.85/yascreen.c:2072:3:  [1] (buffer) strncpy:
  Easily used incorrectly; doesn't always \0-terminate or check for invalid
  pointers [MS-banned] (CWE-120). Risk is low because the source is a
  constant character.
		strncpy(s->mem[i].d," ",sizeof s->mem[i].d);

ANALYSIS SUMMARY:

Hits = 30
Lines analyzed = 2675 in approximately 0.07 seconds (37077 lines/second)
Physical Source Lines of Code (SLOC) = 2260
Hits@level = [0]   8 [1]  17 [2]   7 [3]   0 [4]   6 [5]   0
Hits@level+ = [0+]  38 [1+]  30 [2+]  13 [3+]   6 [4+]   6 [5+]   0
Hits/KSLOC@level+ = [0+] 16.8142 [1+] 13.2743 [2+] 5.75221 [3+] 2.65487 [4+] 2.65487 [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.