Vegard Nossum 2dfd937d7f Prevent lexer from reading beyond the end of the buffer ...

On Linux, valgrind complains about the overflow like this:

  Pass 1...
  ==20054== Invalid read of size 1
  ==20054==    at 0x406CDA: yylex (lexer.c:396)
  ==20054==    by 0x40207C: yyparse (asmy.c:2921)
  ==20054==    by 0x4086AF: main (main.c:351)
  ==20054==  Address 0x503a102 is 0 bytes after a block of size 23,538 alloc'd
  ==20054==    at 0x402994D: malloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
  ==20054==    by 0x406411: yy_create_buffer (lexer.c:147)
  ==20054==    by 0x404FE3: fstk_RunInclude (fstack.c:243)
  ==20054==    by 0x4025F5: yyparse (asmy.y:744)
  ==20054==    by 0x4086AF: main (main.c:351)
  ==20054==

This is a bit of a crude fix which simply exits the hashing loop when
we reach the end of the string. We should probably do some kind of
length calculation on the buffer instead.

Signed-off-by: Vegard Nossum <vegard.nossum@gmail.com>

2012-10-21 06:06:54 +02:00

..

gameboy

reran indent (whitespace changes)

2009-12-30 12:51:32 -07:00

.gitignore

build: merge everything to a single top-level Makefile

2009-06-11 10:08:32 +02:00

alloca.c

reran indent (whitespace changes)

2009-12-30 12:51:32 -07:00

fstack.c

filesize() function was unused! guess I'll remove it

2010-01-18 15:45:38 -07:00

globlex.c

remove GAMEBOY/PCENGINE conditionals (this is a Game Boy assembler)

2010-01-15 17:18:58 -07:00

lexer.c

Prevent lexer from reading beyond the end of the buffer

2012-10-21 06:06:54 +02:00

main.c

Remove nonstandard <err.h>.

2011-12-02 01:23:23 -07:00

math.c

reran indent (whitespace changes)

2009-12-30 12:51:32 -07:00

output.c

rgbasm: remove option for random fill character

2010-01-15 17:04:34 -07:00

rgbasm.1

Remove unnecessary comments from manpage sources

2011-04-10 00:15:35 -06:00

rpn.c

remove GAMEBOY/PCENGINE conditionals (this is a Game Boy assembler)

2010-01-15 17:18:58 -07:00

symbol.c

reran indent (whitespace changes)

2009-12-30 12:51:32 -07:00

yaccprt1.y

Remove nonstandard <err.h>.

2011-12-02 01:23:23 -07:00

yaccprt3.y

rgbasm: improve "undefined macro" error message

2010-01-18 20:41:34 -07:00