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tccpp: parse_line_comment: fix possible buffer overrun

master
grischka 2016-10-01 22:01:25 +02:00
parent 5a23a72aed
commit 332cf5327f
1 changed files with 3 additions and 3 deletions
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6
tccpp.c
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@ -971,9 +971,9 @@ redo_start:
else if (tok == TOK_LINEFEED) else if (tok == TOK_LINEFEED)
goto redo_start; goto redo_start;
else if (parse_flags & PARSE_FLAG_ASM_FILE) else if (parse_flags & PARSE_FLAG_ASM_FILE)
p = parse_line_comment(p); p = parse_line_comment(p - 1);
} else if (parse_flags & PARSE_FLAG_ASM_FILE) } else if (parse_flags & PARSE_FLAG_ASM_FILE)
p = parse_line_comment(p); p = parse_line_comment(p - 1);
break; break;
_default: _default:
default: default:
@ -1954,7 +1954,7 @@ _line_num:
goto ignore; goto ignore;
tcc_warning("Ignoring unknown preprocessing directive #%s", get_tok_str(tok, &tokc)); tcc_warning("Ignoring unknown preprocessing directive #%s", get_tok_str(tok, &tokc));
ignore: ignore:
file->buf_ptr = parse_line_comment(file->buf_ptr); file->buf_ptr = parse_line_comment(file->buf_ptr - 1);
goto the_end; goto the_end;
} }
/* ignore other preprocess commands or #! for C scripts */ /* ignore other preprocess commands or #! for C scripts */