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Fix error handling 

Offset overflowed.
This commit is contained in:
Přemysl Eric Janouch 2016-12-25 00:56:01 +01:00
parent 624303d70d
commit 29062e6c44
Signed by: p
GPG Key ID: B715679E3A361BE6
1 changed files with 6 additions and 6 deletions
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12
bfc-amd64.c
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@ -619,9 +619,9 @@ main (int argc, char *argv[])
CODE ("\x66\x5B") // pop bx CODE ("\x66\x5B") // pop bx
CODE ("\x48\x83\xF8\x00") // cmp rax, 0 CODE ("\x48\x83\xF8\x00") // cmp rax, 0
CODE ("\x48\x8D\x35") DD (4) // lea rsi, [rel read_message] CODE ("\x48\x8D\x35") DD (8) // lea rsi, [rel read_message]
CODE ("\x7C") // jl "fatal_offset" -- write failure message CODE ("\x0F\x8C") // jl "fatal_offset" -- write failure message
DB ((intptr_t) fatal_offset - (intptr_t) (buffer.len + 1)) DD ((intptr_t) fatal_offset - (intptr_t) (buffer.len + 4))
CODE ("\x58") // pop rax -- restore tape position CODE ("\x58") // pop rax -- restore tape position
CODE ("\xC3") // ret CODE ("\xC3") // ret
CODE ("fatal: read failed\n\0") CODE ("fatal: read failed\n\0")
@ -637,9 +637,9 @@ main (int argc, char *argv[])
CODE ("\x66\x5B") // pop bx CODE ("\x66\x5B") // pop bx
CODE ("\x48\x83\xF8\x00") // cmp rax, 0 CODE ("\x48\x83\xF8\x00") // cmp rax, 0
CODE ("\x48\x8D\x35") DD (4) // lea rsi, [rel write_message] CODE ("\x48\x8D\x35") DD (8) // lea rsi, [rel write_message]
CODE ("\x7C") // jl "fatal_offset" -- write failure message CODE ("\x0F\x8C") // jl "fatal_offset" -- write failure message
DB ((intptr_t) fatal_offset - (intptr_t) (buffer.len + 1)) DD ((intptr_t) fatal_offset - (intptr_t) (buffer.len + 4))
CODE ("\x58") // pop rax -- restore tape position CODE ("\x58") // pop rax -- restore tape position
CODE ("\xC3") // ret CODE ("\xC3") // ret
CODE ("fatal: write failed\n\0") CODE ("fatal: write failed\n\0")