real_path_internal(): add comment explaining use of cwd
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Jeff King <peff@peff.net>
Michael Haggerty committed
Oct 28, 2012 at 17:16 UTC
d6052abca39fc84fed4f3248be042cfb6bf635d5
1 file changed
+7
abspath.c
+7
@@ -35,7 +35,14 @@ static const char *real_path_internal(const char *path, int die_on_error)
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{
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static char bufs[2][PATH_MAX + 1], *buf = bufs[0], *next_buf = bufs[1];
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char *retval = NULL;
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+
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+ /*
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+ * If we have to temporarily chdir(), store the original CWD
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+ * here so that we can chdir() back to it at the end of the
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+ * function:
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+ */
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char cwd[1024] = "";
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+
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int buf_index = 1;
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int depth = MAXDEPTH;