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(ef_write): Don't memcpy() onto itself; behavior's undefined.

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This commit is contained in:
Markus Armbruster 2005-11-19 15:41:37 +00:00
parent fe1a3e57c6
commit 661b650c1a
1 changed files with 2 additions and 1 deletions
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3
src/lib/common/file.c
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@ -359,7 +359,8 @@ ef_write(int type, int id, void *from)
if (id >= ep->baseid && id < ep->baseid + ep->cids) {
/* update the cache if necessary */
to = ep->cache + (id - ep->baseid) * ep->size;
memcpy(to, from, ep->size);
if (to != from)
memcpy(to, from, ep->size);
}
if (id >= ep->fids) {
/* write beyond end of file extends it, take note */