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[libmicrohttpd] 04/05: postprocessor: do not call memcpy() / memmove() w
From: |
gnunet |
Subject: |
[libmicrohttpd] 04/05: postprocessor: do not call memcpy() / memmove() with zero size |
Date: |
Sun, 12 Sep 2021 18:32:25 +0200 |
This is an automated email from the git hooks/post-receive script.
karlson2k pushed a commit to branch master
in repository libmicrohttpd.
commit e724878002ace7dfbd53e4ecdc8093e16ef353fe
Author: Evgeny Grin (Karlson2k) <k2k@narod.ru>
AuthorDate: Sun Sep 12 18:11:28 2021 +0300
postprocessor: do not call memcpy() / memmove() with zero size
---
src/microhttpd/postprocessor.c | 18 +++++++++++-------
1 file changed, 11 insertions(+), 7 deletions(-)
diff --git a/src/microhttpd/postprocessor.c b/src/microhttpd/postprocessor.c
index abe7b437..076de337 100644
--- a/src/microhttpd/postprocessor.c
+++ b/src/microhttpd/postprocessor.c
@@ -360,9 +360,10 @@ process_value (struct MHD_PostProcessor *pp,
mhd_assert ( (NULL != value_start) || (NULL == value_end) );
mhd_assert ( (NULL == last_escape) || (NULL != value_start) );
/* move remaining input from previous round into processing buffer */
- memcpy (xbuf,
- pp->xbuf,
- pp->xbuf_pos);
+ if (0 != pp->xbuf_pos)
+ memcpy (xbuf,
+ pp->xbuf,
+ pp->xbuf_pos);
xoff = pp->xbuf_pos;
pp->xbuf_pos = 0;
if ( (NULL != last_escape) &&
@@ -460,10 +461,13 @@ process_value (struct MHD_PostProcessor *pp,
pp->value_offset += xoff;
if (cut)
break;
- xbuf[delta] = '%'; /* undo 0-termination */
- memmove (xbuf,
- &xbuf[delta],
- clen);
+ if (0 != clen)
+ {
+ xbuf[delta] = '%'; /* undo 0-termination */
+ memmove (xbuf,
+ &xbuf[delta],
+ clen);
+ }
xoff = clen;
}
}
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