[PATCH v4 2/8] real_path_internal(): add comment explaining use of cwd
From: Michael Haggerty <hidden>
Date: 2016-06-15 22:55:08
Subsystem:
the rest · Maintainer:
Linus Torvalds
Signed-off-by: Michael Haggerty <redacted> --- abspath.c | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/abspath.c b/abspath.c
index a7ab8e9..f8a526f 100644
--- a/abspath.c
+++ b/abspath.c@@ -35,7 +35,14 @@ static const char *real_path_internal(const char *path, int die_on_error) { static char bufs[2][PATH_MAX + 1], *buf = bufs[0], *next_buf = bufs[1]; char *retval = NULL; + + /* + * If we have to temporarily chdir(), store the original CWD + * here so that we can chdir() back to it at the end of the + * function: + */ char cwd[1024] = ""; + int buf_index = 1; int depth = MAXDEPTH;
--
1.8.0