beenull/ladybird
1
0
Fork 0
mirror of https://github.com/LadybirdBrowser/ladybird.git synced 2024-11-21 23:20:20 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 6

LibC: Don't let ctype isfoo() helpers access array out of bounds

Browse source
This commit is contained in:
Andreas Kling 2020-05-17 20:01:08 +02:00
parent 35875b68f5
commit b3f6b43d3c
Notes: sideshowbarker 2024-07-19 06:33:24 +09:00 
Author: https://github.com/awesomekling
Commit: https://github.com/SerenityOS/serenity/commit/b3f6b43d3c4
1 changed files with 11 additions and 11 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

22
Libraries/LibC/ctype.h
View file

@ -57,17 +57,17 @@ int isgraph(int);
int islower(int);
int isupper(int);
#define isalnum(c) (_ctype_[(int)(c)] & (_U | _L | _N))
#define isalpha(c) (_ctype_[(int)(c)] & (_U | _L))
#define iscntrl(c) (_ctype_[(int)(c)] & (_C))
#define isdigit(c) (_ctype_[(int)(c)] & (_N))
#define isxdigit(c) (_ctype_[(int)(c)] & (_N | _X))
#define isspace(c) (_ctype_[(int)(c)] & (_S))
#define ispunct(c) (_ctype_[(int)(c)] & (_P))
#define isprint(c) (_ctype_[(int)(c)] & (_P | _U | _L | _N | _B))
#define isgraph(c) (_ctype_[(int)(c)] & (_P | _U | _L | _N))
#define islower(c) ((_ctype_[(int)(c)] & (_U | _L)) == _L)
#define isupper(c) ((_ctype_[(int)(c)] & (_U | _L)) == _U)
#define isalnum(c) (_ctype_[(unsigned char)(c)] & (_U | _L | _N))
#define isalpha(c) (_ctype_[(unsigned char)(c)] & (_U | _L))
#define iscntrl(c) (_ctype_[(unsigned char)(c)] & (_C))
#define isdigit(c) (_ctype_[(unsigned char)(c)] & (_N))
#define isxdigit(c) (_ctype_[(unsigned char)(c)] & (_N | _X))
#define isspace(c) (_ctype_[(unsigned char)(c)] & (_S))
#define ispunct(c) (_ctype_[(unsigned char)(c)] & (_P))
#define isprint(c) (_ctype_[(unsigned char)(c)] & (_P | _U | _L | _N | _B))
#define isgraph(c) (_ctype_[(unsigned char)(c)] & (_P | _U | _L | _N))
#define islower(c) ((_ctype_[(unsigned char)(c)] & (_U | _L)) == _L)
#define isupper(c) ((_ctype_[(unsigned char)(c)] & (_U | _L)) == _U)
#define isascii(c) ((unsigned)c <= 127)
#define toascii(c) ((c)&127)