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| author | Přemysl Janouch <p.janouch@gmail.com> | 2016-12-25 00:56:01 +0100 |
|---|---|---|
| committer | Přemysl Janouch <p.janouch@gmail.com> | 2016-12-25 01:56:42 +0100 |
| commit | 29062e6c441f1bf34a9105b775cbde8955646388 (patch) | |
| tree | 74b17a4681cfbd4b569dff50c80da870f0a0a648 | |
| parent | 624303d70d1e2593559f72a7b008244f9e62c5ca (diff) | |
| download | bfc-29062e6c441f1bf34a9105b775cbde8955646388.tar.gz bfc-29062e6c441f1bf34a9105b775cbde8955646388.tar.xz bfc-29062e6c441f1bf34a9105b775cbde8955646388.zip | |
Fix error handling
Offset overflowed.
| -rw-r--r-- | bfc-amd64.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/bfc-amd64.c b/bfc-amd64.c index 9681ca1..9cb5b98 100644 --- a/bfc-amd64.c +++ b/bfc-amd64.c @@ -619,9 +619,9 @@ main (int argc, char *argv[]) CODE ("\x66\x5B") // pop bx CODE ("\x48\x83\xF8\x00") // cmp rax, 0 - CODE ("\x48\x8D\x35") DD (4) // lea rsi, [rel read_message] - CODE ("\x7C") // jl "fatal_offset" -- write failure message - DB ((intptr_t) fatal_offset - (intptr_t) (buffer.len + 1)) + CODE ("\x48\x8D\x35") DD (8) // lea rsi, [rel read_message] + CODE ("\x0F\x8C") // jl "fatal_offset" -- write failure message + DD ((intptr_t) fatal_offset - (intptr_t) (buffer.len + 4)) CODE ("\x58") // pop rax -- restore tape position CODE ("\xC3") // ret CODE ("fatal: read failed\n\0") @@ -637,9 +637,9 @@ main (int argc, char *argv[]) CODE ("\x66\x5B") // pop bx CODE ("\x48\x83\xF8\x00") // cmp rax, 0 - CODE ("\x48\x8D\x35") DD (4) // lea rsi, [rel write_message] - CODE ("\x7C") // jl "fatal_offset" -- write failure message - DB ((intptr_t) fatal_offset - (intptr_t) (buffer.len + 1)) + CODE ("\x48\x8D\x35") DD (8) // lea rsi, [rel write_message] + CODE ("\x0F\x8C") // jl "fatal_offset" -- write failure message + DD ((intptr_t) fatal_offset - (intptr_t) (buffer.len + 4)) CODE ("\x58") // pop rax -- restore tape position CODE ("\xC3") // ret CODE ("fatal: write failed\n\0") |