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config: check for EOF before newline

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If a line ends at EOF there is no need to check for the newline
character and doing so will cause us to read memory beyond the
allocatd memory as we check for the Windows-style new-line, which is
two bytes long.

Signed-off-by: Carlos Martín Nieto <cmn@elego.de>
This commit is contained in:
Carlos Martín Nieto 2011-04-04 16:17:39 +02:00
parent 72946881b5
commit 9b7a6a9980
1 changed files with 4 additions and 3 deletions
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7
src/config.c
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@ -537,12 +537,13 @@ static char *cfg_readline(git_config *cfg)
line_src = cfg->reader.read_ptr;
line_end = strchr(line_src, '\n');
while (is_linebreak(line_end))
line_end = strchr(line_end + 1, '\n');
/* no newline at EOF */
if (line_end == NULL)
line_end = strchr(line_src, 0);
else
while (is_linebreak(line_end))
line_end = strchr(line_end + 1, '\n');
while (line_src < line_end && isspace(*line_src))
line_src++;